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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF TAMILNADU)
TECHNO COMMERCIAL TENDER
TWO COVER SYSTEM
CONSTRUCTION OF METRO HEAD QUARTERS BUILDING AND
OTHER METRO RAIL AMENITIES AT ANNA SALAI, NANDANAM,
CHENNAI 600 035
Cover – A – TECHNICAL PART
PART - A: QUALIFICATION CRITERIA
DATE OF SUBMISSION OF TENDER – 25-06-2015 at 15.00 Hours
DATE OF OPENING OF TENDER -
25-06-2015 2015 at 15.30 Hours
TO BE SUBMITTED TO:
The Chief General Manager(EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
TENDER SUBMITTED BY:
M/s._________________________
Address_____________________
____________________________
1
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF TAMILNADU)
TECHNO COMMERCIAL TENDER
(TWO COVER SYSTEM)
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO
RAIL AMENITIES
AT ANNA SALAI, NANDANAM, CHENNAI, TAMIL NADU, INDIA
CONTENTS
Notice inviting Tenders
Information and Instructions to Tenderer
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
General
Brief Description of Project
Summary of Important Conditions of Contract
Eligible TENDERER for applying.
Qualifying Criteria for the contractor
Site Visit
Submission of TENDER documents
Particular Attention
Final Decision Making Authority
Qualification Information
10.1.
Appendix A
10.2.
Qualification requirements
11.
:
Letter of Transmittal
Format – A
Format – B
Format – C
Format – D
Format – E
Format – F
Format – G
Format – H
:
:
:
:
:
:
:
:
Structure and Organization of TENDERER
Key Personnel to be deployed
Financial Information
Details of Completed works
Details of Ongoing works
Plant, machinery & Equipment
Details of Termination of contract in the past, if any
Status of Current litigations, if any
Annexure A
:
Certificates
2
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
CHENNAI METRO RAIL LIMITED
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO
RAIL AMENITIES
AT ANNA SALAI, NANDANAM, CHENNAI, TAMIL NADU, INDIA
NOTICE INVITING TENDER
Tender Notice No: CMRL/CON/ACHQ -2 /2015 Dated 08TH MAY 2015
Notice inviting Tender
Government of India proposes the Construction of Metro Headquarters Building and
other Metro Rail Amenities at Nandanam, Chennai, Tamilnadu with the Built up area of
about 33,660 Sqm.. On behalf of the President of India, the Chief General Manager (EC),
CMRL, Koyambedu, Chennai 600107 Tamil Nadu, India invites tender for Construction of
Metro Headquarters Building and other Metro Rail Amenities at Nandanam under the
two cover system from the Contractors who meet the following criteria:
The TENDERER to be eligible for Qualification, should fulfill the following qualification criteria
:
1.
The TENDERER should be a well-established and reputed Civil Engineering Contractor,
registered as a legal entity in India, and having experience of minimum Ten years in the field
of Construction of Building and its associated mechanical, electrical, fire fighting & plumbing
works.
2.
Experience of having successfully completed construction works during the last 7 years
ending on 31st March 2015 in which applications are invited:
Three similar completed works costing not less than Rs 51,00,00,000/(Fifty One crores only)
Or
Two similar completed works, costing not less Rs 76,50,00,000 /- (Seventy
six crores fifty lakhs only).
Or
One similar completed work of aggregate cost not less than Rs
102,00,00,000 (One hundred two crores only)
3.
Tenderer should have satisfactorily completed at least one building of not less than 30 Metre
height multi storied housing / Commercial Project as a principle contractor in the same
name and style in the last five years in the State Government of Tamil Nadu / Public Works
Department or Central Governments or other State Government / PSU. The experience
certificate testifying satisfactory complete, is to be obtained from the Engineers not below the
rank of Executive Engineer concerned / Director or equivalent and the same should be in
originals.
4.
The TENDERER should have an average annual turnover of Rs.128 Crore (Rupees One
Twenty Crores) in the field of Construction of Building and its associated works during the
past three consecutive financial years, ending on 31st March, 2015.
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
5.
The TENDERER should produce Banker’s Solvency Certificate or Revenue Solvency
Certificate, for the value of Rs 51,00,00,000/- ( Rupees fifty one crores only) Solvency
certificate must have been obtained not earlier than 31st March, 2015.
6.
Should have access to financial resources, to sustain a firm cash flow, of Rs 5,50,00,000 /- (
Five crore Fifty lakhs only) per month, exclusively available for this work. Letter of support
from TENDERER’s Bankers is required in support of this to be enclosed in addition to the
Bankers Solvency certificate.
7.
Should have adequate material & equipment resources with Tower cranes to complete the
works within the scheduled period, for which the TENDERER should assure, fill and submit
the appropriate Format ‘F’ in the pre-qualification document duly signed.
Salient features:
Name of work
Construction of Metro Headquarters Building and
other Metro Rail Amenities at Nandanam, Chennai,
Tamil Nadu.
Period of Completion
24 MONTHS (From the date of signing Agreement)
Tender documents can be purchased from the office of the Chief General Manager (EC), CMRL
Depot, Koyambedu, Chennai 600 107 Tamil Nadu, India
(a)
Cost of Tender Document
(Including VAT) Non refundable.
Hard Copy - Rs.25,000/- (Rupees Twenty Five Thousand
only) including tax.
Soft Copy downloaded from website mentioned below Rs.20,000/- (Rupees Twenty Thousand only) by Demand
Draft drawn from any Nationalized or Scheduled Banks
in India payable at Chennai, in favour of Chennai
Metro Rail Ltd, Chennai, Tamil Nadu, India
(b)
Period of
documents
08-05-2015 to 23-06-2015
(during office hours -10.00am to 15.00 hours)
(c)
Earnest Money Deposit (EMD)
Rs 1,27,50,000 (Rupees One Crore Twenty seven lakhs
and Fifty thousand only) by Demand Draft, drawn from
any Nationalized or Scheduled Bank in India payable at
Chennai, in favour of the Chennai Metro Rail Ltd,
Chennai, Tamil Nadu, India (OR) by Bank Guarantee on
any Nationalized or Scheduled Bankers in India, valid up
to 26-09- 2015.
(d)
Pre- tender Meeting
11.00 Hours on 28-05-2015 at office of CMRL,
Koyambedu, Chennai - 107
(e)
Issue of pre tender clarifications
15:00 Hours on 11-06-2015
(f)
Last date for submission of
tenders
15.00 Hours on 25-06-2015
(g)
Opening of Technical Tender
15.30 Hours on 25-06-2015
Issue
of
tender
Only one set of document will be issued. Contractors may take additional copies.
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
8.
The tender document is available in the CMRL website viz. www.chennaimetrorail.gov.in.
The tenderer has to purchase the tender document from the Office of CMRL,
Koyambedu and payment to be made towards the tender document in the form of
demand draft drawn from any Nationalized or Scheduled Banks in India payable at Chennai,
in favour of the - Chennai Metro Rail Ltd, Chennai, Tamil Nadu, India,
CMRL reserves the right to accept / reject any one / all the tenders without assigning any reason
thereof.
Evaluation of tender will be done by a committee constituted by CMRL .
Chief General Manager (EC)
Chennai Metro Rail Ltd
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
INFORMATION AND INSTRUCTIONS TO TENDERER
1. GENERAL
1.1.
Construction of Metro Head Quarters building and other Metro Rail Amenities at Anna Salai,
Nandanam, Chennai 600 035. This involves an office building of single basement, Ground +
four upper floors, Type – A, and B Supporting Staffs Quarters for Metro rail operation, Ground
+ Five floors and Ground + Nine upper floors respectively. A Utility building of G+1 floor and
an Underground Sump, STP have also been proposed. On behalf of the President of India,
the Chief General Manager (EC), CMRL, Koyambedu, Chennai 600 107 Tamil Nadu,
India invites tender for Construction of Metro Head Quarters building and other Metro Rail
Amenities at Anna Salai, Nandanam, Chennai 600 035 under the two cover system.
1.2.
TENDERS are invited by the Employer from, reputed, well established and experienced Civil
Engineering Contractors / Firms well established and reputed, registered as a legal entity in
India for a minimum period of ten years in the field of Civil Engineering works in the
Construction of Metro Head Quarters building and other Metro Rail Amenities at Anna Salai,
Nandanam, Chennai 600 035. The notice inviting tender is published in leading news papers
and also available in web site www.chennaimetrorail.gov.in and the tender documents will
not be available for e-submission.
1.3.
TENDER DOCUMENT in hard copy can be obtained from the office of the Chief General
Manager (EC), Chennai Metro Rail Limited, Koyambedu, Chennai, Tamil Nadu, India from
08-05-2015 to 23-06-2015 upon payment of non-refundable amount of Rs.25,000/- including
tax, in the form of Demand Draft, obtained from any Nationalised / Scheduled banks in India,
payable at Chennai, drawn in favour of the Chennai Metro Rail Ltd, Chennai. Tender
documents can also be downloaded from the above website, for which the cost of tender
document will have to be paid in the form of demand draft for Rs.20,000/- drawn from any
Nationalized or Scheduled Banks in India payable at Chennai, in favour of Chennai Metro
Rail Limited, Chennai, Tamil Nadu, India (along with the prequalification document). Without
the submission of cost of tender document (in the form of DD) prior to or along with the
tender, the tender will not be considered for evaluation.
1.4.
Letter of Transmittal and information required for Qualification shall be submitted as per
Appendix “B” attached.
1.5.
TENDERS are not transferable and will be accepted, only from the parties, who have
purchased the documents from the office of CMRL.
1.6.
All information called for, shall be furnished against the respective columns in the enclosed
form. If the space in the format is insufficient for furnishing full details, separate sheets may
be used duly stating the reference to the format and serial number therein. Separate sheets
shall be used for each format. If information is furnished in a separate document, reference to
the same should be given against respective column(s). If information is ‘Nil” it should also be
mentioned as “Nil” or “No such case”. If any particular query is not applicable to the
TENDERER it should be stated as “Not applicable”. However, the TENDERERS are
cautioned that not giving complete information called for in the Tender in the form required or
not giving it in clear terms or making any change in the prescribed forms may result in
disqualification of the TENDERER.
1.7.
The tender should be submitted in English only. Supporting documents such as Annual
accounts, Balance sheets, Employer’s Certifications, Testimonials etc., if attached in any
other language should be translated in English. The Embassy / Official Diplomatic Mission of
the TENDERER’s country in India must certify that English documents are true and accurate
translation of original documents.
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
1.8.
The Tender Document shall be submitted in duplicate in typewritten / handwritten form. The
TENDERER’S signature and seal of the firm shall appear on each page of the Tender.
1.9.
Overwriting shall be avoided. Mistakes shall be scored through and corrections incorporated
and attested by the authorized signatory. All pages of the TENDER document shall be
numbered, signed and submitted in a single packet along with a signed letter of transmittal.
1.10.
References, Information and Certificates from the respective Employers’ certifying for
performance and suitability, technical know-how or capability of the TENDERER shall be
signed by the authorized signatory of Employer.
1.11.
The TENDERER is advised to furnish any additional information, which they think is
necessary in regard to their capabilities. No further information will be entertained after
submission of TENDER document, unless it is called for by the Employer.
1.12.
Tender Document details and enclosures shall be submitted in sealed envelopes and
addressed to The Chief General Manager (EC), Chennai Metro Rail Limited, Admin
Building, CMRL Depot, Poonnamallee Road, Koyambedu, Chennai - 600107, Tamil
Nadu, India as detailed above. Tender submitted late will not be opened. All times and dates
mentioned in this Tender Notice and application are Indian Standard Time (IST) only. The
same will be followed for communication and other purposes.
1.13.
Documents submitted in connection with the Tender, will be treated as CONFIDENTIAL and
will not be returned.
1.14.
The cost incurred by TENDERERS in preparing their Tender, in collecting information, in
providing clarifications or attending discussions, conferences or in making presentations, site
visit etc. in connection with this TENDER will not be reimbursed by the Employer under any
circumstances
1.15.
Any clarification given by the Employer on his own will be forwarded to all those who have
been given a copy of the TENDER documents.
1.16.
The Employer reserves the right to reject any or all TENDERS or reduce the scope, without
assigning any reasons whatsoever and without incurring any liability to whomsoever.
1.17.
Canvassing or influencing in any form will entail disqualification.
1.18.
The Employer reserves the right to approach individuals, employers, companies and
corporations to verify TENDERER’S competency and general reputation.
2.
BRIEF DESCRIPTION OF PROJECT :
2.1.
The Project consists of office building of single basement, Ground + four upper floors, Type –
A, and B Type – A, and B Supporting Staffs Quarters for Metro rail operation, Ground + Five
floors and ground + Nine upper floors respectively. The building will house a comprehensive
fire protection system in line with the requirement of TNFRS. Stilt floor will house parking (two
and four wheelers), electrical room, Lobby and Common amenities. UG sump and Fire sump
with Pump room are planned underground. Plumbing and electrical works for the units are
also included in the scope of works. .
2.2.
The scope of this tender includes for
a) Civil works including RCC framed structure, masonry works, plastering and all related
finishing works like Tiling, Painting etc,
b) Supply and installation of UPVC windows and Joinery, Fire and Flush doors along with
hardware, etc
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
c) Electrical Works including electrical fittings in common area.
d) Fire Protection and detection systems including pumps, smoke detectors, etc
e) Plumbing and sanitation works including supply and installation of all sanitary ware and CP
fittings.
2.3.
The period of completion of the work will be 24 months from the date of signing the
agreement.
2.4.
All construction documents, prepared by the Contractor shall be reviewed and approved by
the Employer / Employer’s representative before commencement of procurement and
construction. All works shall have to be carried out, in compliance with Bill of Quantities,
Conditions of Contract, Technical Specification, Preamble and Bill of Quantities, tender
Drawings, relevant Indian standard (IS) Codes, International Codes and local bye-laws.
3.
SUMMARY OF CONDITIONS OF CONTRACT:
3.1.
The Contract shall be item rate contract with unit rates, to be quoted in Indian Rupees only.
3.2.
Since the project is to be implemented strictly on the time schedule, the employer may extend
the deadline for submission of tenders by issuing an amendment in which case, all rights and
obligations of the Employer and Tenderer previously ensured in the original deadline, will then
be shifted to the new deadline. The Employer will lay high emphasis on the capacity of the
selected contractor to deploy high-tech and speedy construction techniques, high degree of
planning, good procurement and quality check procedures, quality assurance Plan,
Environment and Safety Plan to meet the appropriate standards, execution and co-ordination,
ability to prepare PERT network and adhering to it meticulously.
3.3.
Therefore the TENDERERS are required to demonstrate with firm examples of deployment of
above techniques in their previously completed project. The commendable performance by
the TENDERER in their previous Projects will receive special consideration. (*)
4.
ELIGIBLE TENDERERS :
4.1.
The firms applying for eligibility should have extensive experience and proven track record in
Civil Construction and associated works.
4.2.
The Tender made by a partnership firm, shall be signed by all the partners of the firms above
their full typewritten / handwritten names and current addresses, or alternatively by a partner
holding Power of Attorney for the firm, in which case, a certified copy of the Power of Attorney
shall accompany the Tender. A certified copy of the deed, full names and current addresses
of all the partners of the firm shall also accompany the Tender. (*)
4.3.
The Tender made by a firm shall be signed by Authorized signatory but appropriate evidence
should be enclosed for authorizing the signing person in the tender document. (*)
4.4.
The financial Tenders of only those Tenderer, who fulfill the eligibility criteria mentioned in the
Notice Inviting Tender and mentioned in Clause No.5 below, will be opened.
4.5.
Any change in the legal status of a TENDERER subsequent to submission of Tender will be
subject to approval of the Employer
4.6.
TENDERERs under Joint Venture arrangements are not permitted.
Note: (*) denotes requirement of enclosure(s) along with Tender.
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
5.
QUALIFYING CRITERIA FOR THE CONTRACTOR:
5.1.
The TENDERER to be eligible for Qualification, should fulfill the following qualification criteria
:
a) The TENDERER should be a well established and reputed Civil Engineering Contractor,
registered as a legal entity in India, and having experience of minimum Ten years in the field
of Construction of Building and its associated mechanical, electrical, fire fighting and plumbing
works.
b) Experience of having successfully completed construction works during the last 7 years
ending on 31st March 2015 in which applications are invited:
Three similar completed works costing not less than Rs 51,00,00,000/- (Fifty
One Crores only)
Or
Two similar completed works, costing not less Rs 76,50,00,000 /- (Seventy six
Crores fifty Lakhs only).
Or
One similar completed work of aggregate cost not less than Rs 102,00,00,000
(One hundred and two crores only)
c) The tenderer should have satisfactorily completed at least one building of not less than 30
Metre height (Height measured from the road level to the top of terrace slab) multi storied
housing / Commercial Project as a principle contractor in the same name and style in the last
three years. The experience certificate testifying satisfactory completion is to be obtained
from the Engineers not below the rank of Executive Engineer concerned/ Director / Head of
Procurement or Facilities Department or equivalent and the same should be notarized.
d) The TENDERER should have an average annual turnover of Rs.128 Crore (Rupees One
Twenty Crores) in the field of Construction of Building and its associated works during the
past three consecutive financial years, ending on 31st March, 2015.
e) The TENDERER should produce Banker’s Solvency Certificate or Revenue Solvency
Certificate, for the value of Rs 51,00,00,000/- ( Rupees fifty one crores only) Solvency
certificate must have been obtained not earlier than 31st March, 2015.
f)
Should have access to financial resources, to sustain a firm cash flow, of Rs 5,50,00,000 /- (
Five crore Fifty lakhs only) per month, exclusively available for this work. Letter of support
from TENDERER’s Bankers is required in support of this to be enclosed in addition to the
Bankers Solvency certificate.
g) Should have adequate material & equipment resources with Tower cranes to complete the
works within the scheduled period, for which the TENDERER should assure, fill and submit
the appropriate Format ‘F’ in the pre-qualification document duly signed. (*)
5.2.
i)
The TENDERER should further furnish evidence for the following.
that they have the required minimum tools, plant and equipment as detailed below, but not
limited to, with adequate labour force for the proposed work. The list of equipment shall be
furnished in Format ‘F’. This has to be substantiated further with PERT for the target date of
completion of the project. (*)
Sl.No.
Description
Qty.
( Minimum Requirement)
1
Concrete Pumps
5 Nos.
9
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
ii)
2
Weigh Batcher
3 Nos.
3
Vibrators
20 Nos.
4
Dewatering pumps with suitable capacity
4 Nos.
5
Tower Crane
capacity
6
125 KVA DG Set
1No.
7
Steel Centering Materials
7000 M2
8
Minimum Lab equipments
As needed
9
Lorry/tipper/Water tank
6 Nos.
10
Material Hoist
Min 1 No
11
Passenger Hoist
Min 1 No for 8 passengers
12
Debris Chute
Min 1 No
having
adequate
size
and
1 No.
That the TENDERER / Firm shall have a minimum Supervisory Staff of one Project Manager
and other Engineers with qualification and field experience. Exclusively for carrying out this
Project, other than the supporting staff for executing the work without any complications.
1
Project Manager:
1 No. (One) with Degree / Post-Graduate in Civil /
Structural Engineering with at least 15 (fifteen) Years
experience in executing similar type of Jobs.
2
Site Engineers:
4 Nos. (Four) with degree in Civil Engineering possessing
(Civil) minimum of 5 (five) Years experience in handling
such projects and 2 Nos. (Two) with diploma in Civil
Engineering with 10 years experience in handling such
projects including surveying handling with latest survey
instruments
3
Safety Engineer
1 No (One) with graduate / Diploma in safety Engineering
minimum five years experience.
4
Project Engineer:
1 No (One) with graduate in Civil Engineering minimum
five years experience on Quality control of works
5
Planning Engineer
1 No (One) with graduate in Civil Engineering minimum
five years experience on Planning and procurement
activities with good exposure on MSP or Primavera.
6
Electrical Engineer
1 No (One) with graduate in Engineer Engineering
minimum with 5 years experience in handling such
projects
7
Plumbing Engineer
2 No (One) with graduate in Civil Engineering minimum
with 5 years experience in handling plumbing works in
similar projects
8
Mechanical Engineer
2 No (One) with graduate in Mechanical Engineering
minimum with 5 years experience in handling fire fighting
works in similar projects
Other Key Personnel required for this work in their respective fields shall be furnished in the
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format ‘B’. Details of other engineering Personnel in various categories that the TENDERER
has proposed to appoint for this project, shall also be furnished. (*)
A penalty at the rate of Rs.2,00,000 per person per month will be applicable for nonavailability of the key personnel at site.
Note: Adequate documentary evidence shall be provided for the above requirements along
with the tender to prove their competence and capability.
Note: (*) denotes requirement of enclosure(s) along with Tender.
6.
SITE VISIT:
The TENDERER shall, prior to submission of the tender for the work at his own responsibility
and risk, visit and examine the site of work & its surroundings with prior intimation to the
Employer for proper assessment of the prospective assignment. The TENDERER should
refer to the enclosed drawings also.
7.
SUBMISSION OF TENDER DOCUMENTS :
Sealed Tenders should be addressed to the Chief General Manager (EC) Chennai Metro Rail
limited, Admin Building, CMRL Depot, Poonnamallee High Road, Koyambedu, Chennai 600
107, and superscripting the name of the Tender on the top left hand corner of the cover and
the name of the TENDERER on the bottom left hand corner of the cover and sent so as to
reach him not later than 15-00 hours on 25-06-2015.
The Tender shall be two cover system / Two part tender system, Cover - A the
Technical and Qualification Tender along with EMD and Cover - B Price Tender. Both
the Parts, each in separate sealed Covers - A & B have to be submitted together put in
a common sealed cover.
Cover - A (Technical and Qualification Tender), of the Tender document consists of Part A,B&C pertaining to Qualification criteria (A), Conditions of Contract (B) and Technical
Specification (C) and Cover - B (Price Tender) of Tender document, pertaining to Bill of
Quantities shall be submitted in duplicate i.e. one original and one copy. All the other
enclosures that the TENDERERs wish to submit shall also be in duplicate. (Note: Part - C
Technical Specification: Duplicate copy need not be submitted.)
All Tender Drawings duly signed and affixed with the seal of the TENDERER shall be
returned in a separate cover (only one set) and need not be sealed, at the time of submission
of the Tender.
The Tender document shall be submitted in duplicate. The original Tender document issued
to the TENDERER shall be marked ‘Original’ and copy marked `Duplicate’. Should there be
any discrepancy/ies, in filling / write-up among the original and the copy of the Tender
documents, the ‘Original’ shall be given effect and the duplicate copy is subject to be
amended as per ‘Original’.
A Tender which is not accompanied by EMD, in the approved form in a separate envelope
attached to the sealed cover will be rejected.
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
The duly sealed Tenders shall be submitted to the Employer after superscribing the name of
work, Tender Part No., and name of TENDERER, so as to reach him not later than the due
date and time specified above.
No indication of Tender value or any financial aspect of Tender shall be made in any manner
in any of the enclosures, covering letter etc. in Cover- A containing Part- A,B & C (Technical
and Qualification Tender). If so, such Tender will be rejected.
Documents submitted in connection with the Tender will not be returned.
In addition to the identification required above, the inner envelopes shall include the name
and addresses of the TENDERER to enable the Tender to be returned as unopened, in case
it is declared late.
If the outer envelope is not sealed and marked as above, the employer will assume no
responsibility for misplacement or premature opening of the tender and the tender will be
treated on the grounds of not substantially responsive.
To be eligible for Qualification, TENDERERS shall provide, evidence to the suitability of their
meeting the Criteria indicated in Clause – 5.0 above and furnish details giving their full biodata, organization, technical experience, plant and equipments etc. to establish their capacity
and competence, and possession of adequate resources to carry out the contracts effectively
and for this, the TENDERS submitted shall include the following:
1. Letter of transmittal; as in Appendix - B. (*)
2. Copies of original documents defining the legal status of the TENDERER, its structure and
organisation, place of registration and principal place of business of the TENDERER in the
Format – A. (*)
3. The qualification and experience of key personnel proposed for the administration and
execution of the contract, both on and off site in the format prescribed in Format – B. (*)
4. Details of Financial Information in Format – C. (*)
5. Details of completed works of similar nature in Format – D as at date of Tender. (*)
6. Details of on-going works of similar nature in Format – E as at date of Tender. (*)
7. Details of Plant, machinery & equipment in Format – F. (*)
8. Details of termination of contract by Employer, if any, in Format – G. (*)
9. Details of Status of current litigations, if any in Format – H as at date of Tender. (*)
10. Certificates in support of suitability, technical know-how and capability for having successfully
completed the works during the last five years under Annexure ‘A’. (*)
11. A detailed description on the approach methodology to the construction technology proposed,
schedule and type of equipment to be used, names and responsibilities and detailed
qualifications of the proposed sub-contractors, if any , etc. (*)
12. A detailed description of any method of approach specially devised by the Contractor to
speed up the work. (*)
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Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
13. Current solvency or letter of support from the TENDERER’S Banker, for an amount of Rs
51,00,00,000/( Rupees fifty one crores only). Solvency certificate must have been
obtained not earlier than 31st March 2015. (*)
14. Details of cases of having been barred or black listed from the Tendering process, if any.
Black-listed Agencies’ Tender is liable to be rejected. (*)
The tender should be submitted in English only. Supporting documents such as Annual
accounts, Balance sheets, Employer’s certifications, Testimonials etc., if attached, in any
other language, should be translated in English. The Embassy / Official Diplomatic Mission of
the TENDERER’s country in India must certify that English documents are true and accurate
translation of original documents.
All times and dates mentioned in this Tender Notice and application are Indian Standard Time
(IST). Indian Standard Time only will be followed for communication and other purposes.
The TENDERERS must provide evidence of having adequate experience in carrying out Civil
Engineering and all associated works as required for the project. This should include
supporting certificates of reports relating to financial, technical and other capability of the
TENDERER. At least three certificates to be produced. (*)
The TENDERERS are required to make a presentation on their organisation, infrastructure,
project-scheduling, performance, capabilities etc., upon request from the Employer .
The TENDERERS for qualification shall provide all facilities to the Employer for verification of
the information / details furnished by them and also for inspection of their works carried out /
in progress, if requested.
Note: (*) denotes requirement of enclosure(s) along with Tender.
8.
PARTICULAR ATTENTION :
The EMPLOYER reserves his rights to disqualify any TENDERER if:
a) The TENDERERS have made untrue or false representation in the forms, statements and
attachments submitted in proof of the qualification and requirements ;
b) The TENDERER’s track record of poor performance such as abandoning the work, not
properly completing the Contract, inordinate delays in completion or financial failures etc.
c) The TENDERERS have suits lodged / admitted / pending against it in a Court of Law for
proceedings for declaration of Bankruptcy, etc or any suit, which challenges the basic
existence of the TENDERER and substantially influences its capacity to implement the Works
satisfactorily. Information on the legal matters is to be submitted as per FORMAT – H. (*)
d) The TENDERER shall unconditionally waive all rights in respect of challenging in any court
any matter concerning this TENDER evaluation and award / termination of Contract.
Note: (*) denotes requirement of enclosure(s) along with Tender.
9.
9.1.
FINAL DECISION MAKING AUTHORITY:
The main criteria for the selection of Contractors for the work will be on the consideration of
their ability to fulfill their obligations under the Contract. and competence to do good quality
works, within specified time schedule and in close co-ordination with other agencies,
resources committed, evaluation of technical submission etc. in addition to consideration
given for competitiveness of tender price.
13
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
9.2.
After opening the outer envelope containing the Tender, its contents shall be examined for
compliance in pursuant to clause 5.0, in the presence of the TENDERERs or their authorized
representatives, who choose to be present, at 15.30 hours on the Last Date of receipt of
Tender Documents. Tenders found not complying are liable to be rejected without further
examination. The contents of envelope titled “Technical Tender” will be opened first and its
contents shall be scrutinized as per requirements of Tender documents. Only for the
TENDERERs, whose contents of technical tender have been found in order and evaluated as
substantially responsive, the envelope titled “Financial Tender” shall be opened, at the same
address in the presence of TENDERERs or their authorized representatives, who choose to
be present at the time and date of opening of the tender. This intimation will be sent to those
TENDERERs whose technical tenders are found to be in order and evaluated as substantially
responsive.
9.3.
Tenders determined to be substantially responsive will be checked by the Employer for any
arithmetic errors. Errors will be corrected by the Employer. Where there is discrepancy
between the unit rates in figures and in words, the rates in words only, will govern. The
amount stated in the tender will be adjusted by the Employer in accordance with the above
procedure for the correction of errors.
9.4.
The Employer reserves the right, to accept or reject any Tender or to reduce the scope /
cancel the exercise without having to incur any cost or to assign any reason for its decision to
any party whatsoever, and the Employer’s decision on qualifying contractors will be final and
binding on all the contractors.
Date of Submission
Authorized Signature of TENDERER with Official seal
14
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Appendix - A
LETTER OF TRANSMITTAL
Date:
To
The Chief General Manager (EC)
Chennai Metro Rail Limited
Admin Building, CMRL Depot,
Poonnamallee High road,
Koyambedu, Chennai 600 107.
Sir,
Sub:
Submission of Techno Commercial Tender for the Construction of Metro Head
Quarters building and other Metro Rail Amenities at Anna Salai, Nandanam, Chennai
600 035.
a) I / We ……………………………………….., having examined the details given in the Invitation to
TENDERERS, we hereby submit the following information and relevant documents.
b) I / We hereby certify that all the statements, information and data provided in the enclosed formats A
to G. and accompanying statements are true and correct to the best of my / our knowledge.
c)
I / We .…………………………. have read the instructions appended with the qualification document
and I / We understand that any contract made between ourselves and the Employer on the basis of
the information given by me / us, is liable to be cancelled , if any false information is detected at a
later date.
d) I / We ……………………………..have also no objection, if enquiries are made on all the projects and
works listed by me / us, in the accompanying sheets or any other enquiry, on the information
furnished herewith in the accompanying sheets.
e) I / We have furnished all information and details as asked for and have no further pertinent information
to provide.
f)
I / We submit, the requisite certified solvency certificate and authorise the Employer to approach the
Bank issuing the Solvency Certificate to verify the correctness thereof. I / We also authorise the
Employer, to approach individuals, employers, companies, and corporation to verify my / our
competency and general reputation.
g) I / We submit in Annexure ‘A’ the certificates in support of my / our suitability, technical know-how and
capability for having successfully completed the works during the last five years.
h) I / We also agree that the decision of the Employer, in the Qualification and selection of Contractors
will be final and binding upon me / us.
i)
I / We agree that the Employer reserves the right to qualify any contractor or to cancel the exercise
without assigning any reason for doing so or to incur any liability to any party whatsoever.
j)
I / We agree not to withdraw from the contract after issue of LOA and before signing the agreement. If
so, we attendee by the condition that liquidated damages shall be claimed against us by the
Employer
15
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
k)
The following are enclosed as enclosures to the letter of transmittal :
1.
Certificate of Incorporation from Registrar of Companies
2.
Memorandum of Association
3.
Annual Report / Audited Balance Sheet & Profit and Loss Statement for the past 4 years
4.
Registration with Govt. Departments or Public Bodies.
5.
Solvency Certificate from Bankers for the value of Rs 51,00,00,000/- (current and dated, not
earlier
than
31st
March
2015
6.
Support Certificate from Bankers for Credit facilities available and cash flow of R……….
Crore per month (exclusively available for this work)
7.
Letter of support from TENDERERs Bankers required to be enclosed in addition to the
subscribers of Bankers solvency certificate for Rs 51,00,00,000/( Rupees fifty one
Crores only)
8. Income Tax Clearance certificate / Saral Form giving details of total annual contract receipts
for the past five years under relevant paragraph.
9. Sales Tax / Works Contract Tax / VAT / PAN Registration and Clearance certificate.
10. PERT Charts and quality Formats used at site such as pour card for Concrete etc, referred in
Formats ‘D’ & ‘E’
11. Testimonials from Employers / Consultants for completion of works included in Format - D
12. LOI / Work Order issued by the Employers for ongoing works included in Format - E
13. Organization Chart of Company showing the Officer in-Charge who will have direct link with
and control of, site organization.
14. Organization Chart and Curriculum Vitae of top two officers, viz, Project Manager and
Coordinator.
15. Method Statement: Programming & Planning and Progress monitoring plan, weekly and
monthly ; Management of Direct Sub-Contractors from selection through execution of work;
Coordination with Specialist contractors ,if any, etc. ;Quality control & quality Assurance at
site; Safety Plan
16. Formats ‘A ‘ to ‘H ‘ with complete details., and any certificates other than that listed above.
I / we hereby agree to abide by the decisions of the Employer in all matters, relating to this
Qualification.
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
16
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
QUALIFICATION REQUIREMENTS
1.
Do you satisfy requirement of Clause 5.01. a
Yes / No
2.
Do you satisfy requirement of Clause 5.01. b
Yes / No
3.
Do you satisfy requirement of Clause 5.01. c
Yes / No
4.
Do you satisfy requirement of Clause 5.01. d
Yes / No
5.
Do you satisfy requirement of Clause 5.01. e
Yes / No
6.
Do you satisfy requirement of Clause 5.01. f
Yes / No
7.
Do you satisfy requirement of Clause 5.01. g
Yes / No
8.
Do you satisfy requirement of Clause 5.02 (i)
Yes / No
9.
Do you satisfy requirement of Clause 5.02 (ii)
Yes / No
Have you enclosed necessary Documentary evidence for all
items Sl.No.1 to 8 above
Yes / No
10.
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
17
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
FORMAT – A
STRUCTURE AND ORGANISATION OF TENDERER
S.No.
To be filled by the
Building Construction
Company
Details required
1
Name of the TENDERER's Company
2
Nationality of TENDERER
3
Establishment of the Company
i) Year
ii) Location
4.
The TENDERER is a company
Yes / No
(Please enclose attested copy of registration / incorporation
under appropriate laws of the TENDERER’s country)
Enclosed
5
Address of the TENDERER :
i)
Registered Office Address
Telephone Number
Fax Number
E-mail Address
Web site
ii)
Local office address in India , if any:
Telephone Number
Fax Number
E-mail Address
iii)
Office address through which this work will be handled and
name of officer in-charge.
Telephone Number
Fax Number
E-mail Address
6
If the TENDERER is a Multinational Company, please furnish
the following :
a)
Whether the foreign company has an office in India?
If so, give the following details :
18
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Year of Establishment
Location :
Name of the Contact Person :
Telephone Nos. :
Fax No.:
Email :
b)
Please mention the nature of Indian office. If so, please provide
the details whether marketing, liaison, capable of undertaking
complete project in India etc.
c)
Whether company has executed / currently executing / tender
for any project in India?
If so, please furnish the following details :
Name of the Employer :
Name of the Project :
Location of the Project :
Nature of Project :
Nature of Contract :
Project Duration :
Project value :
Probable Date of Completion
d)
The TENDERER has to furnish a detailed note on how it will
handle the project in India, if successful TENDERER, in terms
of (i) Finance,(ii) Manpower, (iii) Tools & equipment,(iv) Use of
local agencies and labour, (v) Project control and management
plan.
7
Details of the Board of Directors
i) Name of the Director
ii) Qualification
iii) Organisation
19
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
iv) Office address
v) Telephone Number
vi) Fax Number
vii) E-mail Address
8
Enclose Company's Organisation Chart showing the structure
of the organisation including the names of the Directors / Chief
Executive Officer and position of Officers.
9
Number of years of experience and other Details.
a.
As a Principal Contractor
(Contractor shouldering major responsibility)
10(a)
In own country
Yes / No
No. of Years :
ii.
Other countries (If yes, pl. specify country)
Yes / No
No. of Years :
Country :
Average number of permanent employees in the last 12
months.
Managerial
Nos.
ii) Technical
Nos.
iii) Administration
Nos.
iv) Financial
Nos.
v) Quality Control and Quality Assurance Engineer
Nos.
vi) Safety Officer
Nos.
vii) Industrial Relations Officer
Nos.
viii) Supervisors
Nos.
ix) Foreman
Nos.
x) Skilled Labours
Nos.
xi) Un Skilled Labours
Nos.
xiii) Others ( to specify)
11
Yes / No
i.
i)
10(b)
Enclosed
1.
2.
3.
Nos.
Nos.
Nos.
xii) Apprentices / Trainees
Nos.
i) How many years has your Company been in business of
similar work under its present name & address.
20
….Years
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
ii) What were your fields of activities from when your Company
was established?
1.
2.
3.
iii) Whether any new fields were added in your Company? and if
so, when and in what fields?
1.
2.
3.
12
Area of business activities other than Civil and associated
works, if any.
(If yes please furnish specific information).
13
In which fields of Civil and associated works do you claim
specialization and interest?
Yes / No
1.
2.
3.
14
Whether registered with any Government / Public Sector
Undertaking / Local bodies like CPWD / MES / PWD or
equivalent applicable in the TENDERER's country.
Yes / No.
1.
2.
If yes, please furnish details class and type of Registration.
3.
15
Registration Details :
i) Sales Tax Registration No or equivalent applicable in the
TENDERER's country & Valid upto
ii)
PF Registration No or equivalent applicable in the
TENDERER's country & Valid upto
iii) ESI Registration No or equivalent applicable in the
TENDERER's country & Valid upto
iv) Service Tax registration No or equivalent applicable in the
TENDERER's country & Valid upto
16
Whether adequate and satisfactory evidence to indicate
financial capacity of the organisation to undertake the said
construction work is enclosed.
17
Do you have experience in Modern technology of manufacture
and execute large span steel roof structure / concrete structure
/ Cast in situ or precast structure/Flat slab/If yes, please
furnish the details.
Yes / No
Yes / No.
1.
2.
3.
18
Do you have Latest Survey instruments and Equipment to set
out levels at any heights and all type of Special structures?
21
Yes / No
If yes mention the name of
equipment and the quantity
possessed
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
19
Do you have your own Ready mix concrete facility?
If yes, pl. give details of location and its production capability in
terms of quantity per day.
Yes / No.
Location
:
Production :
Cum/Day
20
Do you have your own Cement manufacturing Plant?
Yes / No
If yes, pl. furnish details of your own plant.
If no, please specify name of manufacturer for sourcing and the
dependency of the manufacture by the TENDERER.
21
Do you have R & D department?
Yes / No
If yes, give details.
22
i) Do you have and adopt Quality Control and Quality
Assurance Manual?
ii) Is your company an ISO certified
If yes, please furnish the ISO certification no.
23
Company?
Enclose QA Plan
Yes / No
iii) Do you follow Quality Assurance System as per the
appropriate ISO series of standards?
Yes / No
i) Do you have and follow Safety Manual?
Yes / No
If yes, please give details of health and safety facilities available
with you.
24
Yes / No
Enclose Environmental
Health and Safety Plan.
ii) Was there any major, fatal accident occurred at any of your
Sites during execution in the last five years? If yes, furnish
Details.
Yes / No
iii) Whether corrective action taken immediately and first-aid
facilities provided in the site?
Yes / No
Propose Methodology:
Enclose Statement
i) Whether the Programming and planning plan will be prepared
in the form of Pert Chart adopting softwares like Primavera / MS
Project?
Yes / No
ii) Whether the coordination plan & report plan will be prepared
in the standard format?
Yes / No
iii) Whether the technically qualified Sub-Contractors are
engaged to carry out other than Civil work?
Yes / No
iv) Please specify method for control and management of SubContractors.
22
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
25
Were you ever required to suspend work for a period of more
than three months continuously after you started?
If yes, Please furnish the name of project and reasons thereof.
Yes / No.
1. Name of Project :
Reasons
2. Name of Project :
Reasons
26
Have you ever left the work awarded to you incomplete?
If yes, Please furnish the name of project and reasons thereof.
Yes / No.
1. Name of Project :
Reasons
2. Name of Project :
Reasons
27
Were any penalties imposed for delays on the completion of the
project?
If yes, Please furnish the name of project and reasons thereof.
Yes / No.
1. Name of Project :
Reasons
2. Name of Project :
Reasons
28
Were there any terminations of Contracts by the Employer?
If yes, please furnish the details.
Yes / No.
1. Name of Project :
Reasons
2. Name of Project :
Reasons
29
Litigation initiated by the Company and against the Company if
any?
i) Whether cases of litigation proceedings have arisen in your
projects during the last three financial years?
Yes / No
ii) If Yes, How many cases of litigation arisen during the last
three financial years?
Nos.
iii) Furnish the details of the highest claim of Litigation during
the last three financial years.
Rs.
iv) If the TENDERER is a multinational company, please furnish
the litigation history initiated by the Company and against the
company in India, if any
30
Arbitration :
i) Whether cases of arbitration proceedings have arisen in your
projects during the last three years?
23
Yes / No
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
ii) If Yes, How many cases of arbitration arisen during the last
three years.
Furnish name of work, name of the Employer, cost of work,
amount of claim.
iii) Furnish the details of the highest claim of arbitration during
the last three years.
31
Nos.
Rs.
Details of the Banker
Name of the Banker
Contact person
Office Address
Telephone Number
Fax Number
32
Are you / Firm a Recipient of any Award in appreciation of your /
Firm’s work?
If yes, please furnish the details
33
Please give atleast three references of Employers (Engineers,
Architects or top Officials of Organisation) for whom you may
have executed construction works of importance and similar
nature from whom the Employer can verify
1) Name :
Designation :
Company :
2) Name :
Designation :
Company :
34
3) Name :
Designation :
Company :
Any special information, which you may like to provide.
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
24
Yes / No
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format - B
KEY PERSONNEL TO BE DEPLOYED FOR THE PROJECT
S.No.
Details required
To be filled by
TENDERER
A
Managerial Level - General
1
Individual’s Name
2
Age
3
Qualification
4
Present position
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
Name two recent works and nature of involvement of the
person
B
Managerial Level - Technical
1
Individual’s Name
2
Age
3
Qualification
4
Present position
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
C
Name two recent works and nature of involvement of the
person
Managerial Level - Administration & Finance
1
Individual’s Name
2
Age
3
Qualification
4
Present position
25
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
Name two recent works and nature of involvement of the
person
D
Managerial Level - Quality Control and Quality Assurance
1
Individual’s Name
2
Age
3
Qualification
4
Present position
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
Name two recent works and nature of involvement of the
person
E
Managerial Level - Safety Officer & Industrial Relation
Officer
1
Individual’s Name
2
Age
3
Qualification
4
Present position
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
Name two recent works and nature of involvement of the
person
26
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
F
Managerial Level – Planning
1
Individual’s Name
2
Age
3
Qualification
4
Present position
5
Professional experience in the similar nature of works.
6
Years with the TENDERER
7
Language known
8
Name two recent works and nature of involvement of the
person
Note : 1) CV of each of the above key personnel and details of
their experience should be included in the submission.
2) Organisation Chart (both office and site) specific for
this project for all the divisions of work (Main works &
Direct Sub works) as an Annexure to this format must be
attached.
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
27
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format - C
FINANCIAL INFORMATION
Sl.No
Description
Details to be filled in by TENDERER
A
Annual Turnover in the last five financial years
(In INR )
1
Year : 01st April 2010- 31st March 2011
2
Year : 01st April 2011 - 31st March 2012
3
Year : 01st April 2012 - 31st March 2013
4
Year : 01st April 2013 - 31st March 2014
5
Year : 01st April 2014 - 31st March 2015
B
Financial Information (In INR)
1
Year : 01st April 2010 - 31st March 2011
a. Total assets
b. Current assets
c. Total Liabilities
d. Current Liabilities
e. Profits before taxes
f. Profits after taxes
g. Net worth
h. Working Capital
2
Year : 01st April 2011 - 31st March 2012
a. Total assets
b. Current assets
c. Total Liabilities
d. Current Liabilities
e. Profits before taxes
f. Profits after taxes
g. Net worth
h. Working Capital
3
Year : 01st April 2012 - 31st March 2013
a. Total assets
b. Current assets
c. Total Liabilities
d. Current Liabilities
28
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
e. Profits before taxes
f. Profits after taxes
g. Net worth
h. Working Capital
4
Year : 01st April 2013 - 31st March 2014
a. Total assets
b. Current assets
c. Total Liabilities
d. Current Liabilities
e. Profits before taxes
f. Profits after taxes
g. Net worth
h. Working Capital
5
Year : 01st April 2014 - 31st March 2015
a. Total assets
b. Current assets
c. Total Liabilities
d. Current Liabilities
e. Profits before taxes
f. Profits after taxes
g. Net worth
h. Working Capital
C
Solvency Certificate ( In INR )
a. Name of Banker with address
b. Date of Certificate
c. Amount
D
Credit facilities available to TENDERER – Fund
and non-fund based such as Cash Credit,
Working capital term loans, LCs and Bank
Guarantees - Banker's or Bankers' Letter must
be produced - (In INR)
a. Name of Banker with address
b. Date of Letter of Support
c. Amount
E
TENDERER's Financial resources for this
project
a. Own resources
b. Banker's or Bankers' credits
29
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
F
a. Approximate total value of on-going works
b. Total Value of works to be completed as of now
Note:
1) The TENDERER should furnish the value of
work to be completed as of now along with breakup details of each work in the Proforma enclosed
with this Format - C.
2) The TENDERER has to ensure that the list of
works covered in this Proforma should be same as
the ones listed in Format - E (List & details of
Ongoing works) with Proforma of each work.
G
Anticipated total value of new works for the
next financial year i.e.
Place :
Authorized
Signature of the TENDERER
Date:
Common seal of the Company
Format - D
Details of completed works in the Last Seven Years
(To be furnished for each Project Separately)
30
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
S.No.
Details required
1
Name of work
2
Country and location
3
Employer’s name and address
To be filled by the TENDERER
Name:
Address :
4
Consultants name and address.
Name
:
Address :
5
Total tendered cost of work Agreement No.
Date
INR
……………..
Agreement No:
Date :
6
Total actual cost of work after completion.
INR …………….. Millions
7
Excess / less in percentage.
……………..%
8
Explain if Excess / less is higher by 20% of the
tendered cost of work.
9
Date of commencement
10
Period of completion
11
Stipulated date of completion
12
Actual date of completion
13
Extended by the contractor, if any. Reason for
non-completion of work in stipulated time limit /
extended time limit, if so furnish details
Yes / No
14
Extension of time granted by the Employer, if any.
Yes / No
15
If yes, please specify the reason for extension of
time.
Brief description of works including principal
features and quantities of main items of the work.
16
Name of Contractor’s Engineer in-charge of the
Project & Qualifications.
17
Details of specialised work executed under this
Contract.
18
Details of specialised work executed by their own
divisions under the Contract
31
Name :Qualification :
Millions
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
20
Whether the Programming and planning plan was
followed in the form of Pert Chart adopting
softwares like Primavera / MS Project?
Yes / No
21
Whether the Quality Control and Quality
Assurance
function
was
carried
out?
If yes, Please give details and copies of quality
formats used in anyone project
Yes / No
22
Whether the safety measures was followed?
If yes, Please give details.
Yes / No
23
i) Were there any labour strikes in any of your
Projects, during the course of Execution of
Project? If yes, Please give details.
Yes / No
ii) Whether corrective action taken immediately?
Yes / No
24
Were there any penalties / fines / stop notice /
compensation / liquidated damages imposed
during
execution
of
the
project?
Yes / No
Amount :
Reason :
25
If Yes, Please give amount, details and reason.
Whether the contract of the work was terminated?
If Yes, furnish the details.
Yes / No
Name of the Project :
Reason :
26
Please specify the details of litigation / arbitration
cases, if any, pertaining to works completed.
Yes / No
If Yes, furnish the details i.e. Nature of litigation /
arbitration. Please furnish whether the litigation is
initiated by the Company or against the Company.
27
Attach Employer’s certificate, as may be available
(Not below the rank of Director or equivalent)
Yes / No
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
32
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format - E
Details of On-Going works
(To be furnished for each Project Separately)
S.No.
Details required
1
Name of work
2
Country and location
3
Employer's name and address
To Be filled by the TENDERER
Name
:
Address :
4
Consultants name and address.
Name
:
Address :
5
Total tendered cost of work (Agreement No. and Date)
6
(a) Brief description of works including principal features
and quantities of main items of the work.
7
i) Percentage of physical completion
INR …………………. Millions
ii) Amount billed for the work completed.
iii) Cost of work remaining to be executed as on the date of
submission.
iv) Stipulated date of completion
v) Anticipated date of completion
8
Name of Contractor’s Engineer in-charge of the Project &
Qualifications.
Name
Qualification :
9
Details of specialized works under this Contract
33
:
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
10
Specialised works being executed by their own divisions
11
i) Were there any labour strikes in any of your Projects,
during the course of Execution?
Yes / No
If yes, Please give details.
ii) Whether corrective action taken immediately?
12
Yes / No
Were there any penalties / fines / stop-notice /
compensation / liquidated damages imposed?
Amount :
Yes / No
If Yes, Please give amount, details and reason.
Reason :
13
Please specify the details of litigation / arbitration cases, if
any, pertaining to works ongoing.
Yes / No
14
Attach Employer's certificate, as may be available (Not
below the rank of Director or equivalent)
Yes / No
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
34
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format - F
PLANT, MACHINERY & EQUIPMENT
S.
No.
Name of
Equipment*
Qty
Total
requirement
No. of units
for the Work
Equipment in Hand
Kind
and
Make
Capacity
No.
of
each
Year of
Manufacture &
Present
Condition
Equipment to be Procured
Num
ber
Capa
city
Through
Purchase /
Lease **
1
2
3
4
5
6
* Attach list of additional and essential equipment for the works for which qualification has been
asked. This will include special requirements, if any, of executing Agency, as stipulated by them
** If leased / hired, indicate the date , when the current / lease expires,
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
35
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format - G
Details of Termination of contract by previous Employers in the past, if any
(To be furnished for each Project separately, if more than one)
S.No.
Particulars
1
Name of works
2
Name of the Employer
3
Value of Contract in INR
4
Period of Contract
5
Terminated at what stage
6
Reasons / grounds for termination
7
Approx. value of work completed
at the time of termination in INR
8
Approx. value of balance work not
completed in INR
9
Remarks
To Be filled by the TENDERER
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
36
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
Format – H
STATUS OF CURRENT LITIGATIONS, IF ANY
(To be furnished for each Project Separately, if more than one )
The TENDERER is required to disclose as part of tender submission all cases filed against the
TENDERER in any Court of Law in any country. The TENDERER shall give the information in the
following format in separate sheets for each litigation as applicable:
I.
General Information:
(1)
Name of the Petitioner
:
(2)
Name of the Court in which case has
been admitted.
:
(3)
Name / designation of the Presiding
Authority of the Court
:
(4)
Date of Filing of the case and date of
Admittance of the case.
:
(5)
Expected date of next hearing
:
(6)
Has hearing already commenced?
so, when was the last hearing?
If
:
(7)
Name & Address of the TENDERER’S
Counsel
:
(8)
Name & Address of the Petitioner’s
Counsel
:
(9)
Current status of the litigation –
Whether any interim injunction or
injunction award has been given. If so,
give the details?
:
(10)
Has any appeal been filed against any
interim injunction or such award?
:
(11)
Value of litigation / damages claimed /
out standings and disputes, as per the
Petitioner
:
(12)
Any arrest warrant or any property
attachment
or
any
insolvency
proceedings or any such decree issued
against the TENDERER? Give the
details.
:
37
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
I.
Financial Value of Dispute / Claim / Damages:
The TENDERER should furnish the sum total of claims / damages involved, on account of the
litigations currently in operation.
Net Worth:
The TENDERERS shall also furnish the net worth of the Company for each of the last five
years duly certified by a registered Chartered Accountant.
The TENDERERS shall furnish the percentage of the total sum of disputes / litigations / claim,
currently under litigation in proportion to the average net worth of the Company for the last
five years.
II.
Status of the TENDERER’S Legal Status on account of the Litigation :
The TENDERERS shall furnish information whether the litigation in question affects /
threatens the fundamental existence / operation of the company (For E.g: insolvency, degree
of criminal nature etc.)
III.
Nature of Submissions :
1.
The submissions from the TENDERER in response to the above question under
Clause-IV shall be in the form of a statement signed by the authorized signatory on
behalf of the TENDERER, who shall hold the Power of Attorney to sign such
documents. The Power of Attorney documents shall also be attached.
2.
The statement submitted and signed by the Power of Attorney holder shall also be
countersigned by the Company Secretary of the Company with official seal.
Note : 1)
The Employer or his authorized representatives reserves the right to verify any part of
the information furnished by the TENDERER in the above statements, without any
prejudice to the terms and conditions of the Contract. The TENDERER is deemed to
have given his consent, for the right of verification by the Employer, or his authorised
representative, when the TENDERER submits the above statements.
2)
If it comes to the notice of the Employer, that the TENDERER has suppressed any
information, or furnished misleading, or inaccurate information, or in case whether
any litigation currently in progress at the time of submission of TENDERS, lead to the
decree by the Court of Law, against the TENDERER, the Employer reserves the
right, to nullify the Qualification, and to disqualify the TENDERER. If such information
becomes available to the Employer, prior to issue of Letter of Intent, the TENDERER
will be disqualified, and will not be considered for award of work. If such information
comes to the knowledge of the Employer, after the award of work, the Employer
reserves the right, to terminate the Contract unilaterally, at the total cost and risk of
the TENDERER and such action would include but not limited to forfeiture of all
deposits, guarantees etc. furnished in any form. The Employer will also reserve the
right, to recover any Retention Money, Mobilization Advance, paid by invoking of
Bank Guarantees submitted, including invoking of the Performance Bond.
38
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
The entire work executed upto the stage of such termination including materials
procured and delivered at site, will be taken over by the Employer, and adjusted
towards any payment due, as per Contract conditions. The Employer can thereafter
arrange for a tendering process, for completion of the balance works, for which any
additional financial burden to be met by the Employer, will also be recovered, from
the Contractor, who has been terminated, without prejudice to the other rights, of the
Employer, under the Contract
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
39
Part (A) – Qualification Criteria
Chennai Metro Rail Ltd, – Contract No.
ANNEXURE – ‘A’
CERTIFICATES
Enclose Certificates, in support of suitability, technical know-how, and capability for having
successfully completed, similar nature of works in the last five calendar years a sending 31st March
2015
Also furnish the following details of the enclosed certificate.
S.No
Name of
The
Employer
Name,
Name &
Contract
location, address of the
price in
nature &
Architect / E.
Indian
description
R. for
Rupees
of work
supervision
Actual Date
Contractual
Reasons
% of
Date of
Contractual
of
Contractual
for delay,
ParticiDate of
commenceDate of
commence
in
pation of
ment of
completion
ment of
completion
Completion
the
of work
Construcof work
Construc, if any
Company
tion
tion
Place :
Authorized
Signature of the TENDERER
Date :
Common seal of the Company
40
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF TAMILNADU)
TECHNO COMMERCIAL TENDER
TWO COVER SYSTEM
CONSTRUCTION OF METRO HEAD QUARTERS BUILDING AND
OTHER METRO RAIL AMENITIES AT ANNA SALAI, NANDANAM,
CHENNAI 600 035
COVER - A - TECHNICAL PART
PART B - CONDITIONS OF CONTRACT
DATE OF SUBMISSION OF TENDER 25-06-2015 at 15.00 Hours
DATE OF OPENING OF TENDER 25-06-2015 at 15.30 Hours
TO BE SUBMITTED TO:
Chief General Manager (EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
TENDER SUBMITTED BY:
M/s._________________________
Address_____________________
____________________________
1
Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF TAMILNADU)
TECHNO COMMERCIAL TENDER
(TWO COVER SYSTEM)
CONSTRUCTION OF METRO HEAD QUARTERS BUILDING AND OTHER
METRO RAIL AMENITIES AT ANNA SALAI, NANDANAM,
CHENNAI 600 035
TECHNICAL BID - PART B - CONDITIONS OF CONTRACT
CONTENTS
CONTRACT DATA
TENDER FORM
1.
INTRODUCTION
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
1.7.
1.8.
1.9.
1.10.
1.11.
1.12.
1.13.
1.14.
1.15.
1.16.
1.17.
1.18.
2.
THE EMPLOYER
2.1.
2.2.
2.3.
2.4.
2.5.
3.
Background of Organization
Project Outline and Summary
Instructions to Tenderers
General Conditions
Definitions
Interpretation
Communications
Law and Language
Validity of Tender
Priority of Documents
Contract Agreement
Assignment
Care and Supply of Documents
Employer’s Use of Contractor’s Documents
Contractor’s Use of Employer’s Documents
Confidential Details
Compliance with Laws
Joint and Several Liability
Right of Access to the Site
Permits, Licences or Approvals
Employer’s Representative
Employer’s Financial Arrangements
Employer’s Claims
THE ENGINEER
3.1.
3.2.
3.3.
3.4.
Engineer’s Duties and Authority
Delegation by the Engineer
Instructions of the Engineer
Determinations
2
Chennai Metro Rail Ltd, – Contract No.
4.
THE CONTRACTOR
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.11.
4.12.
4.13.
4.14.
4.15.
4.16.
4.17.
4.18.
4.19.
4.20.
4.21.
4.22.
4.23.
4.24.
4.25.
4.26.
4.27.
4.28.
4.29.
5.
Contractor’s General Obligations
Performance Guarantee / Performance Bond
Contractor’s Representative
Subcontractors
Assignment of Benefit of Subcontract
Co-operation
Setting Out
Post Construction Survey
Joint Inspection
Safety Procedures
Quality Assurance
Burden for Damage
Site Data
Sufficiency of the Accepted Contract Amount
Unforeseeable Physical Conditions
Rights of Way and Facilities
Avoidance of Interference
Access Route
Transport of Goods
Contractor’s Equipment
Protection of the Environment
Electricity and Water
Progress Reports
Security of the Site
Protection of Adjoining Facilities
Contractor’s Operations on Site
Site office
Vector Control
Fossils/Antiquities
STAFF AND LABOUR
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
5.8.
5.9.
5.10.
5.11.
6.
Part – (B) – Conditions of Contract
Engagement of Staff and Labour
Rates of Wages and Conditions of Labour
Persons in the Service of Employer
Labour Laws
Working Hours
Facilities for Staff and Labour
Health and Safety
Contractor’s Superintendence
Contractor’s Representative
Records of Contractor’s Representative and Equipment
Disorderly Conduct
PLANT, MATERIALS AND WORKMANSHIP
6.1.
6.2.
6.3.
6.4.
Manner of Execution
Samples
Inspection
Testing
3
Chennai Metro Rail Ltd, – Contract No.
6.5.
6.6.
6.7.
6.8.
6.9.
6.10.
6.11.
6.12.
7.
Practical Completion of the Works and Sections
Practical Completion of Parts of the Works
Interference with Tests on Completion
Surfaces Requiring Reinstatement
DEFECTS LIABILITY
10.1.
10.2.
10.3.
10.4.
10.5.
10.6.
10.7.
10.8.
10.9.
10.10.
11.
Contractor’s Obligations
Delayed Tests
Retesting
Failure to Pass Tests on Completion
PRACTICAL COMPLETION AND PRACTICAL COMPLETION CERTIFICATE
9.1.
9.2.
9.3.
9.4.
10.
Commencement of Works
Period of Completion
Programme
Delays
Extension of time for Completion
Rate of Progress
Liquidated Damages
TESTS ON COMPLETION
8.1.
8.2.
8.3.
8.4.
9.
Rejection
Remedial Work
Employership of Plant and Materials
Storage of Materials
Temporary Hoardings and Safety netting
Pollution and site Hygiene
Fire Protection during Construction
Royalties
COMMENCEMENT, DELAYS AND SUSPENSION
7.1.
7.2.
7.3.
7.4.
7.5.
7.6.
7.7.
8.
Part – (B) – Conditions of Contract
Completion of Outstanding Work and Remedying Defects
Cost of Remedying Defects
Extension of Defects Liability Period
Failure to Remedy Defects
Removal of Defective Work
Further Tests
Right of Access
Contractor to Search
Unfulfilled Obligations
Clearance of Site
MEASUREMENT AND EVALUATION
11.1.
11.2.
11.3.
Works to be Measured
Method of Measurement
Omissions
4
Chennai Metro Rail Ltd, – Contract No.
12.
VARIATIONS AND ADJUSTMENTS
12.1.
12.2.
12.3.
12.4.
12.5.
13.
Suspension of work
Consequences of Suspension
Payment for Plant and Materials in Event of Suspension
Prolonged Suspension
Resumption of Work
RISK AND RESPONSIBILITY
16.1.
16.2.
16.3.
16.4.
16.5.
16.6.
17.
Notice to Correct
Termination of the Contract
Valuation at Date of Termination
Payment after Termination
Employer’s Entitlement to Termination
SUSPENSION
15.1.
15.2.
15.3.
15.4.
15.5.
16.
Item Rate Contract
Contract Sum
Earnest Money Deposit
Mobilisation advance
Terms of payment
Payment of Part Rates
Price Adjustment
Interim Payments
Final Bill
Delayed Payments
Payment of Retention money
Secured advance on Materials at site
Currencies of Payment
TERMINATION
14.1.
14.2.
14.3.
14.4.
14.5.
15.
Variations, Provisional and Prime Cost Sums
Right to Vary
Variation Procedure
Payment in Applicable Currencies
Daywork
CONTRACT SUM AND PAYMENT
13.1.
13.2.
13.3.
13.4.
13.5.
13.6.
13.7.
13.8.
13.9.
13.10.
13.11.
13.12.
13.13.
14.
Part – (B) – Conditions of Contract
Indemnities
Contractor’s Care of the Works
Employer’s Risks
Consequences of Employer’s Risks
Intellectual and Industrial Property Rights
Limitation of Liability
INSURANCE
17.1.
17.2.
17.3.
General Requirements for Insurances
Injury to Persons and Property of Employer
Insurance for Works and Contractor’s Equipment
5
Chennai Metro Rail Ltd, – Contract No.
17.4.
17.5.
18.
Insurance against Injury to Persons and Damage to Property
Insurance for Contractor’s Representative
FORCE MAJEURE
18.1.
18.2.
18.3.
18.4.
18.5.
18.6.
18.7.
19.
Part – (B) – Conditions of Contract
Definition of Force Majeure
Notice of Force Majeure
Duty to Minimise Delay
Consequences of Force Majeure
Force Majeure Affecting Subcontractor
Optional Termination, Payment and Release
Release from Performance under the Law
CLAIMS, DISPUTES AND ARBITRATION
19.1.
19.2.
19.3.
19.4.
19.5.
19.6.
19.7.
19.8.
19.9.
19.10.
19.11.
19.12.
19.13.
19.14.
Contractor’s Claims
Payment for Claims
No Legal Action till Dispute Settlement Procedure is Exhausted
Notice of Dispute
Two Stages for Dispute
Restoration
Conciliation
Conciliation Procedure
Termination of Conciliation Proceedings
Arbitration
Interest on Arbitration Award
Cost of Arbitration
Jurisdiction of Courts
Suspension of Work on Account of Arbitration
20.
SPECIAL CONDITIONS - GREEN BUILDING CONCEPT
21.
APPENDIX
APPENDIX 1 - PROFORMA OF BANK GUARANTEE FOR EARNEST MONEY DEPOSIT
APPENDIX 2 - ARTICLES OF AGREEMENT
APPENDIX 3 - FORM OF PERFORMANCE GUARANTEE
APPENDIX 4 - AFFIDAVIT
APPENDIX 5 - PROFORMA OF BANK GUARANTEE FOR MOBILISATION ADVANCE
PAYMENT
APPENDIX 6 - SOIL INVESTIGATION REPORT
6
Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
21.1.
CONTRACT DATA
Period of Sale of Tender
Document
:
08-05-2015 to 23-06-2015
(During office hours –from 10.00 hours to 15.00 hours)
Date of submission of tenders
:
15.00 Hours on 25-06-2015
Validity of tender
:
90 days from last date of submission of tender
Time and Date of Pre-Tender
clarifications
:
11.00 Hours on 28-05-2015 at the office of Chief General
Manager (EC), CMRL, Koyambedu, Chennai 600 107.
On or before 15:00 Hours, 11-06-2015
Issue of Pre tender
Clarifications
Earnest Money Deposit
:
Rs 1,27,50,000/- (Rupees One crore twenty seven
lakhs fifty thousand Only) by Demand Draft, drawn
from any Nationalized or Scheduled Bank in India
payable at Chennai, in favour of Chennai Metro Rail
Ltd, Chennai-107, Tamil Nadu, India (OR) by Bank
Guarantee on any Nationalized or Scheduled Bankers in
India, valid up to 26-09- 2015.
Tender Documents to be
submitted to
:
Chief General Manager (EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
Place of Opening of Tender
:
Office of Chief General Manager (EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
Period of completion of work
:
24 (Twenty Four) Months (From the date of signing
Agreement)
TENDER SUBMITTED BY
7
Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
TENDER FORM
To
Chief General Manager (EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
Dear Sir,
1.
Having examined the drawings, specification, designs and Bill of Quantities, relating to the
works specified in the memorandum hereinafter set out, and having visited and examined the
site of the works specified in the said tender, and having acquired the requisite information
relating thereto as affecting the Tender, I / we, hereby offer to execute the works specified in
the said tender within the time specified in the said memorandum at the rates mentioned in
the attached Bill of Quantities and in accordance in all respects with the specification,
designs, drawings, and instructions in writing referred to in the Conditions of Tender, the
Articles of Agreement, Special Conditions, Bill of Quantities, and Conditions of Contract, and
with such materials as are provided for by and in all other respects in accordance with such
conditions so far as they may be applicable.
MEMORANDUM
a) Description of works
Construction of Metro Head Quarters building and other Metro
Rail Amenities at Anna Salai, Nandanam, Chennai 600 035.
b) Earnest Money Deposit
Rs 1,27,50,000/- (Rupees One crore twenty seven lakhs fifty
thousand Only) by Demand Draft, drawn from any
Nationalized or Scheduled Bank in India payable at Chennai,
in favour of the Chief General Manager (EC), Chennai Metro
Rail Ltd, Chennai-600 107, Tamil Nadu, India (OR) by Bank
Guarantee on any Nationalized or Scheduled Bankers in India,
valid up to 26-09- 2015.
c) Percentage to be deducted 5% (Five Percent) of the value of work billed in which 2.5 % of
from bills towards retention final bill value, will be retained for a period of one year, from the
money
date of handing over the Project, in all respects.
(d) Date of Commencement
(e) Time allowed from the date
commencement for completion of
the work
: From the date of signing the agreement
:
24 (Twenty Four) Months (From the date of signing
agreement)
8
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
2.
Should this Tender be accepted, I / we hereby agree to abide by and fulfill the terms and
provisions of the said Conditions of Contract annexed hereto or in default thereof to forfeit and
pay to Chennai Metro Rail Limited, Chennai -600 107 the amount mentioned in the said
Contract.
3.
We agree to execute the proposed project works with complete cooperation and coordination
with the independent other contractors, if any, to achieve sequential, unhindered and
harmonious progress with the objective of completion of the Entire Project within the
stipulated time for the entire project works for the Employer’s beneficial use of the Project.
4.
I / We have enclosed herewith the Earnest Money Deposit for INR 1,27,50,000/- ( One crore
twenty five lakhs and fifty thousand only) in the form of demand draft which amount is not
to bear any interest. Should I / we, fail to execute the contract when called upon to do so I /
we do hereby agree that this sum shall be forfeited by me / us, to the Chennai Metro Rail
Limited, Chennai - 600 107.
5.
If this Tender is accepted tenderer to provide a Bank Guarantee from a Nationalized / Scheduled
Bank in India as Performance Bond for a sum equivalent to Five percent of the Contract
value for the due performance of the Contract under the terms of the conditions of Contract
within time.
6.
We agree to abide by this Tender for the period of ninety days from the last date of
submission of tender and it shall remain binding upon us and may be accepted at any time
before the expiration of that period, without any additional cost.
7.
Unless and until, a formal agreement is prepared and executed this Tender together with your
written acceptance thereof shall constitute a binding contract between us.
8.
The lists showing the particulars of large works carried out and the names of manufacturers of
specialized items as required are enclosed.
9.
Our bankers are:
(Please state name, address, and phone No.)
i)…………………………………………..
ii)………………………………………….
9
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
The names of Partners of our Firm / Directors, of our company are:
(Please state name, address, and Phone No.)
i)
…………………………………………
ii) …………………………………………
The name of the Partner, of the Firm / Director of our company, authorized to sign :
Yours faithfully,
Authorized Signature of Tenderer
(Should be signed by the authorized signatory. Board Resolution in the case of Company or a letter
signed by all partners in the case of Firm to be enclosed.)
WITNESSES :
i)
Signature:
Occupation:
Address:
ii)
Signature:
Occupation:
Address:
10
Chennai Metro Rail Ltd, – Contract No.
1.
Part – (B) – Conditions of Contract
INTRODUCTION
1.1.
Background of Organization
Construction of Metro Head Quarters building and other Metro Rail Amenities at Anna Salai,
Nandanam, Chennai 600 035. This involves an office building of single basement, Ground + four
upper floors, Type – A, and B Supporting Staff Quarters for Metro Rail operation, Ground + Five
floors and ground + Nine upper floors respectively. A Utility building of G+1 floor and an
Underground Sump, STP have also been proposed. On behalf of the President of India, the Chief
General Manager (EC ), CMRL, Koyambedu Depot , Chennai 600 107 Tamil Nadu, India
invites tender for Construction of Head Quarters building and other Metro Rail Amenities at Anna
Salai, Nandanam, Chennai 600 035 under the two cover system.
1.2.
Project Outline and Summary
The Project consists of office building of single basement, Ground + four upper floors, Type – A,
and B Supporting Staff Quarters for Metro Rail operation, Ground + Five floors and ground + Nine
upper floors respectively. The building will house a comprehensive fire protection system in line
with the requirement of TNFRS. Stilt floor will house parking (two and four wheelers), electrical
room, Lobby and Common amenities. UG sump and Fire sump with Pump room are planned
underground. Plumbing and electrical works for the units are also included in the scope of works.
The scope of this tender includes for
a. Civil works including framed structure, masonry works, plastering and all related finishing
works like Tiling, Painting etc,
b. Supply and installation of UPVC windows and Joinery, Fire and Flush doors along with
hardware, etc
c. Electrical Works including electrical fittings in common area.
d. Fire Protection and detection systems including pumps, smoke detectors, hose reel,
sprinklers, etc
e. Plumbing and sanitation works including supply and installation of all sanitary ware and
CP fittings.
1.3.
Instructions to Tenderers
1.3.1.
Before submission, the Tenderer shall visit the site and familiarize himself with
the site conditions including access to site, condition of existing structures, space
for stacking of material and auxiliary construction activity, availability of required
construction materials locally etc. and also carefully examine the conditions of
contract, technical specifications (including drawing and other specifications
referred to therein), the schedules and the bill of quantities and if there should be
or appear to be any ambiguity in or discrepancy between any of these documents
or between figured and measured dimensions upon the drawings, he should
immediately refer the matter to the Employer / Employer’s Representative for
clarifications.
1.3.2.
The Tenderer shall investigate the following items during the site inspection
referred above and to provide in his Tender rates for assuming full responsibility
for services and amenities therefor, which will not be payable separately by the
Employer.
11
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
●
Availability of power for construction
●
Availability of water for construction.
●
Means of disposal of storm water from the site.
●
Means of disposal of water due to de-watering at the site
●
Suitability of soil stratum at foundation base.
●
A copy of Soil Investigation Report on the investigation done on the site by the
Employer is furnished under Appendix 6 for information.
1.3.3.
The Employer discourages stipulation of additional conditions by the Tenders, as
they are expected to accept the various provisions and conditions in the Tender
documents. No conditional offer will be accepted.
1.3.4.
Timely completion of the works is the essence of this contract and the period
specified for the completion of the works from the date of Letter of Acceptance
must be adhered to as indicated. Any deviation proposed shall be clearly
mentioned. Commitment on early completion of work will be given due weightage
while deciding on the tender.
1.3.5.
The Tenderer shall complete the required documentation and fill in the rates and
amounts in the bill of quantities. He shall sign and date the Tender documents in
the spaces provided for the purpose. The Tenderer shall initial each page of the
Tender Documents.
1.3.6.
The tender shall be signed by person or persons duly authorised by the Tenderer
with signature duly witnessed. In the case of proprietary firm the Tender shall be
signed by the proprietor. In case of a partnership firm the Tender shall be signed
by partner duly authorised under partnership deed. In the case of a limited
company the Tender shall be signed by a person holding Power of Attorney. In
the case of consortium authorised signatory of each member of consortium.
1.3.7.
The Tender shall contain an address for serving notices required to be served to
the Tenderer in connection with the Tender.
1.3.8.
The Tender form and the documents attached to it shall not be detached one
from the other, and no alteration or mutilation (other than filling in all the blank
spaces) shall be made in any of the documents attached hereto. Any modification
proposed to the entries in the attached documents shall be pointed out in the
covering letter; otherwise it shall not be entertained.
1.3.9.
The rates quoted by the Tenderer shall not be subject to any adjustment with
variations in wage rates, taxes, levies, prices of material or any other costs
except where specific provisions have been made in this document.
1.3.10.
The Tender shall be accompanied by the following information, schedules and
drawings: Construction programme showing the Tenderer’s proposed sequence
of operations together with the estimated time for each activity, including
preparation of Shop drawings and designs for approval of the Employer / the
Engineer / Employer’s representative manufacture, delivery, erection,
commissioning and total completion of the work, etc. The tenderer shall submit a
bar chart for fabrication and construction activities for the building.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
The tenderer’s proposals for supervising the work, including the numbers and experience
of the various grades of supervisory Representative/officers for each month of the
construction period and name of the person proposed to act as site in charge with brief
details of his qualification and experience.
Schedule of labour requirements showing the total estimated labour force, for each month
of construction period.
Schedule of proposed sub-contractors / associates.
Schedule of monthly electric power consumption including peak power requirement where
applicable.
List of machinery & equipment to be deployed for the project.
The Tenderer should carefully go through the safety & quality norms required for the
project. The Tenderer has to strictly adhere to the quality & safety requirements stated
therein the Conditions of contract.
The Employer reserves the right to adjust arithmetical or other errors in the tender in
accordance with the following general rules. In the event of discrepancy between words
and figures quoted, the description in words shall prevail. Similarly in the event of an error
in the amount column arising as a result of wrong extension, the unit or item rates shall be
regarded as firm and extensions amended accordingly.
Collection of Information for Tender: The Tenderer must obtain for himself on his own
responsibility and at his own expense all the information which may be necessary for the
purpose of making a Tender and for entering into a contract and must examine the
Drawings and must inspect the site of the work and acquaint himself with all local and site
conditions, means of access to the work, nature of the work, nature of soil conditions,
availability of any infrastructure and all matters appertaining thereto. Ignorance of the site
conditions shall not be accepted by the Employer as a basis for any claim for
compensation.
2.
GENERAL CONDITIONS
2.1.
Definitions
The contract document consists of the Agreement, Letter of Intent & Letter of Award, General
Instructions, Notice Inviting Tender, General Conditions of the Contract, Special Conditions
Technical Specifications and Schedule of quantities, suggested bar chart, Tender drawings
including all modifications thereof incorporated in the document before the execution and the
Contract Drawings prepared by The Employer from time to time. The following words and
expressions shall have the meanings stated. Words indicating persons or parties include
corporations and other legal entities, except where the context requires otherwise
2.1.1.
The Contract
“Contract” means the Contract Agreement, the Letter of Acceptance, the
Letter of Tender, these Conditions, the Specification, the Drawings, the
Schedules, and the further documents (if any) which are listed in the Contract
Agreement or in the Letter of Acceptance.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
“Contract Agreement” means the contract agreement (if any) referred to in
Clause 2.7 [Contract Agreement].
“Letter of Acceptance” means the letter of formal acceptance, signed by the
Employer, of the Letter of Tender, including any annexed memoranda
comprising agreements between and signed by both Parties. If there is no
such letter of acceptance, the expression “Letter of Acceptance” means the
Contract Agreement and the date of issuing or receiving the Letter of
Acceptance means the date of signing the Contract Agreement.
“Letter of Tender” means the document entitled letter of tender, which was
completed by the Contractor and includes the signed offer to the Employer
for the Works.
“Specification” means the document entitled specification, as included in the
Contract, and any additions and modifications to the specification in
accordance with the Contract. Such document specifies the Works.
“Drawings” means the drawings of the Works, as included in the Contract,
and any additional and modified drawings issued by (or on behalf of) the
Employer in accordance with the Contract.
“Schedules” means the document(s) entitled schedules, completed by the
Contractor and submitted with the Letter of Tender, as included in the
Contract. Such document may include the Bill of Quantities, data, lists, and
schedules of rates and/or prices.
“Tender” means the Letter of Tender and all other documents which the
Contractor submitted with the Letter of Tender, as included in the Contract.
“Appendix to Tender” means the completed pages entitled appendix to
tender which are appended to and form part of the Letter of Tender.
“Bill of Quantities “and “Day work Schedule” mean the documents so
named (if any) which are comprised in the Schedules.
2.1.2.
Parties and Persons
“Party” means the Employer or the Contractor, as the context requires.
“Employer” means the person named as employer in the Form of tender and
the legal successors in title to this person.
“Tenderer” means the company which competes with others to get the
opportunity to do work for the employer by offering a competitive quote to do
the works defined in the tender documents.
“Contractor” means the person(s) named as contractor in the Letter of
Tender accepted by the Employer and the legal successors in title to this
person(s).
“Engineer” means the person appointed by the Employer to act as the
Engineer for the purposes of the Contract and named in the Form to Tender,
or other person appointed from time to time by the Employer.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
“Contractor’s Representative” means the person named by the Contractor
in the Contract or appointed from time to time by the Contractor under Clause
5.3 [Contractor’s Representative], who acts on behalf of the Contractor.
“Employer’s Representative” means the Engineer, the assistants referred to
in Clause 4.2 [Delegation by the Engineer] and all other staff, labour and
other employees of the Engineer and of the Employer; and any other
Representative notified to the Contractor, by the Employer or the Engineer,
as Employer’s Representative.
“Contractor’s Representative” means the Contractor’s Representative and
all Representative whom the Contractor utilises on Site, who may include the
staff, labour and other employees of the Contractor and of each
Subcontractor; and any other Representative assisting the Contractor in the
execution of the Works.
“Subcontractor” means any person named in the Contract as a
subcontractor, or any person appointed as a subcontractor, for a part of the
Works; and the legal successors in title to each of these persons.
2.1.3.
Dates, Tests, Periods and Completion
“Base Date” means the date 28 days prior to the latest date for submission of
the Tender.
“Commencement Date” means
8.1[Commencement of Works].
the
date
notified
under
Clause
“Time for Completion” means the time for completing the Works or a
Section (as the case may be) under Clause 8.2 [Time for Completion],as
stated in the Appendix to Tender, calculated from the Commencement Date.
“Tests on Completion” means the tests which are specified in the Contract
or agreed by both Parties or instructed as a Variation, and which are carried
out under Clause 9 [Tests on Completion] before the Works or a Section (as
the case may be) are taken over by the Employer.
“Practical Completion Certificate” means a certificate issued under Clause
10[Employer’s Practical Completion].
“Tests after Completion” means the tests (if any) which are specified in the
Contract and which are carried out in accordance with the provisions of the
Particular Conditions after the Works or a Section (as the case may be) are
taken over by the Employer.
“Defects Liability Period” means the period for notifying defects in the
Works or a Section (as the case may be) under Clause 11.1[Completion of
Outstanding Work and Remedying Defects], as stated in the Conditions of
the contract, calculated from the date on which the Works or Section is
completed as certified under Clause 10.1 [Practical Completion of the Works
and Sections].
“day” means a calendar day and “year” means 365 days.
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Chennai Metro Rail Ltd, – Contract No.
2.1.4.
Part – (B) – Conditions of Contract
Money and Payments
“Accepted Contract Amount” means the amount accepted in the Letter of
Acceptance for the execution and completion of the Works and the
remedying of any defects.
“Contract Sum” means the price defined in Clause 14.1 [The Contract
Sum], and includes adjustments in accordance with the Contract.
“Cost” means all expenditure reasonably incurred (or to be incurred) by the
Contractor, whether on or off the Site, including overhead and similar
charges, but does not include profit.
“Final Payment Certificate” means the payment certificate issued under
Clause 14.17 [Issue of Final Payment Certificate].
“Final Statement” means the statement defined in Clause 14.15[Application
for Final Payment Certificate].
“Foreign Currency” means a currency in which part (or all) of the Contract
Sum is payable, but not the Local Currency.
“Interim Payment Certificate” means a payment certificate issued under
Clause 14 [Contract Sum and Payment], other than the Final Payment
Certificate.
“Local Currency” means the currency of the Country.
“Payment Certificate” means a payment certificate issued under Clause 14[
Contract Sum and Payment ].
“Provisional Sum” means a sum (if any) which is specified in the Contract
as a provisional sum, for the execution of any part of the Works or for the
supply of Plant, Materials or services under Clause 13.1 [Provisional Sums].
“Retention Money” means the accumulated retention moneys which the
Employer retains under Clause 14.7 [Application for Interim Payment
Certificates] and pays under Clause 14.13 [Payment of Retention Money].
“Statement” means a statement submitted by the Contractor as part of an
application, under Clause 14 [Contract Sum and Payment], for a payment
certificate.
2.1.5.
Works and Goods
“Contractor’s Equipment” means all apparatus, machinery, vehicles and
other things required for the execution and completion of the Works and the
remedying of any defects. However, Contractor’s Equipment excludes
Temporary Works, Employer’s Equipment (if any), Plant, Materials and any
other things intended to form or forming part of the Permanent Works.
“Goods” means Contractor’s Equipment, Materials, Plant and Temporary
Works, or any of them as appropriate.
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Part – (B) – Conditions of Contract
“Materials” means things of all kinds (other than Plant) intended to form or
forming part of the Permanent Works, including the supply-only materials (if
any) to be supplied by the Contractor under the Contract.
“Permanent Works” means the permanent works to be executed by the
Contractor under the Contract.
“Plant” means the apparatus, machinery and vehicles intended to form or
forming part of the Permanent Works.
“Temporary Works” means all temporary works of every kind (other than
Contractor’s Equipment) required on Site for the execution and completion of
the Permanent Works and the remedying of any defects.
“Works” mean the Permanent Works and the Temporary Works, or either of
them as appropriate.
2.1.6.
Other Definitions
“Contractor’s Documents” means the calculations, computer programs and
other software, drawings, manuals, models and other documents of a
technical nature (if any) supplied by the Contractor under the Contract.
“Country” means the country in which the Site (or most of it) is
located,where the Permanent Works are to be executed.
“Employer’s Equipment” means the apparatus, machinery and vehicles (if
any) made available by the Employer for the use of the Contractor in the
execution of the Works, as stated in the Specification; but does not include
Plant which has not been taken over by the Employer.
“Force Majeure” is defined in Clause 19 [Force Majeure].
“Laws” means all national (or state) legislation, statutes, ordinances and
other laws, and regulations and by-laws of any legally constituted public
authority.
“Performance Guarantee/Performance Bond” means the security (or
securities, if any) under Clause 5.2 [Performance Guarantee/Performance
Bond].
“Site” means the places where the Permanent Works are to be executed
and to which Plant and Materials are to be delivered, and any other places as
may be specified in the Contract as forming part of the Site.
“Unforeseeable” means not reasonably foreseeable by an experienced
contractor by the date for submission of the Tender.
“Variation” means any change to the Works, which is instructed or approved
as a variation under Clause 13 [Variations and Adjustments].
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2.2.
Part – (B) – Conditions of Contract
Interpretation
In the Contract, except where the context requires otherwise:
words indicating one gender include all genders;
words indicating the singular also include the plural and words indicating the
plural also include the singular;
provisions including the word “agree”, “agreed” or “agreement” require the
agreement to be recorded in writing, and
“written” or “in writing” means hand-written, type-written, printed or
electronically made, and resulting in a permanent record.
The marginal words and other headings shall not be taken into consideration in the
interpretation of these Conditions.
2.3.
Communications
Wherever these Conditions provide for the giving or issuing of approvals, certificates,
Consents, determinations, notices and requests, these communications shall be:
2.3.1.
in writing and delivered by hand (against receipt), sent by mail or
courier, or transmitted using any of the agreed systems of electronic
transmission; and
2.3.2.
delivered, sent or transmitted to the address for the recipient’s
communications as stated in the Conditions of Contract.
However:
2.4.
2.3.3.
if the recipient gives notice of another address, communications shall
thereafter be delivered accordingly; and
2.3.4.
if the recipient has not stated otherwise when requesting an approval
or consent, it may be sent to the address from which the request was
issued.
Law and Language
The Contract shall be governed by the law of the country (or other jurisdiction). If
there are versions of any part of the Contract which are written in more than one
language, the version which is in the ruling language shall prevail. The language for
communications shall be English.
2.5.
Validity of Tender
Tender submittals shall remain valid for acceptance by the Employer for a period of
90 (ninety) days from the last date of submission of Tender which period may be
extended due to unavoidable administrative reasons and after intimating to all the
Tenderer. The Tenderer shall not cancel or withdraw the Tender during this validity
period.
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Chennai Metro Rail Ltd, – Contract No.
2.6.
Part – (B) – Conditions of Contract
Priority of Documents
The documents forming the Contract are to be taken as mutually explanatory of one
another. For the purposes of interpretation, the priority of the documents shall be in
accordance with the following sequence:
a. the letter of Acceptance,
b. Articles of Agreement
c.
Pre Tender Queries
d. Preamble & Bill of Quantities
e. Technical Specification
f.
Conditions of Contract
g. Tender Drawings
h. IS Code
i.
Other Codes
If an ambiguity or discrepancy is found in the documents or conflicts between
descriptions in 2 documents, then the following priority shall govern:
1.
Preamble & Bill of Quantities
2. Technical Specifications
3. Conditions of Contract
4. Tender Drawings
5. IS Code
6. Other codes
2.7.
Contract Agreement
The Parties shall enter into a Contract Agreement within 28 days after the Contractor
receives the Letter of Acceptance, unless they agree otherwise. The Articles of
Agreement shall be based upon the format in Appendix 2. The costs of stamp duties
and similar charges (if any) imposed by law in connection with entry into the Contract
Agreement shall be borne by the Employer.
2.8.
Assignment
Neither Party shall assign the whole or any part of the Contract or any benefit or
interest in or under the Contract. However, either Party:
2.8.1.
may assign the whole or any part with the prior agreement of the
other Party, at the sole discretion of such other Party, and
2.8.2.
may, as security in favour of a bank or financial institution, assign its
right to any moneys due, or to become due, under the Contract.
19
Chennai Metro Rail Ltd, – Contract No.
2.9.
Part – (B) – Conditions of Contract
Care and Supply of Documents
The Specification and Drawings shall be in the custody and care of the Employer.
Unless otherwise stated in the Contract, two copies of the Contract and of each
subsequent Drawing shall be supplied to the Contractor, who may make or request
further copies at the cost of the Contractor.
Each of the Contractor’s Documents shall be in the custody and care of the
Contractor, unless and until taken over by the Employer. Unless otherwise stated in
the Contract, the Contractor shall supply to the Engineer six copies of each of the
Contractor’s Documents.
The Contractor shall keep, on the Site, a copy of the Contract, publications named in
the Specification, the Contractor’s Documents (if any), the Drawings and Variations
and other communications given under the Contract. The Employer’s Representative
shall have the right of access to all these documents at all reasonable times.
If a Party becomes aware of an error or defect of a technical nature in a document
which was prepared for use in executing the Works, the Party shall promptly give
notice to the other Party of such error or defect.
2.10.
Employer’s Use of Contractor’s Documents
As between the Parties, the Contractor shall retain the copyright and other intellectual
property rights in the Contractor’s Documents and other design documents made by
(or on behalf of) the Contractor.
The Contractor shall be deemed (by signing the Contract) to give to the Employer a
non-terminable transferable non-exclusive royalty-free license to copy, use and
communicate the Contractor’s Documents, including making and using modifications
of them. This license shall:
2.10.1.
apply throughout the actual or intended working life (whichever is
longer) of the relevant parts of the Works,
2.10.2.
entitle any person in proper possession of the relevant part of the
Works to copy, use and communicate the Contractor’s Documents
for the purposes of completing, operating, maintaining, altering,
adjusting, repairing and demolishing the Works, and
2.10.3.
in the case of Contractor’s Documents which are in the form of
computer programs and other software, permit their use on any
computer on the Site and other places as envisaged by the Contract,
including replacements of any computers supplied by the Contractor.
The Contractor’s Documents and other design documents made by (or on
behalf of) the Contractor shall not, without the Contractor’s consent, be used,
copied or communicated to a third party by (or on behalf of) the Employer for
purposes other than those permitted under this Sub-Clause.
20
Chennai Metro Rail Ltd, – Contract No.
2.11.
Part – (B) – Conditions of Contract
Contractor’s Use of Employer’s Documents
As between the Parties, the Employer shall retain the copyright and other intellectual
property rights in the Specification, the Drawings and other documents made by (or
on behalf of) the Employer. The Contractor may, at his cost, copy, use, and obtain
communication of these documents for the purposes of the Contract. They shall not,
without the Employer’s consent, be copied, used or communicated to a third party by
the Contractor, except as necessary for the purposes of the Contract.
2.12.
Confidential Details
The Contractor shall disclose all such confidential and other information as the
Engineer may reasonably require in order to verify the Contractor’s compliance with
the Contract.
2.13.
Compliance with Laws
The Contractor shall, in performing the Contract, comply with applicable Laws. Unless
otherwise stated in the Particular Conditions:
2.14.
2.13.1.
The Employer shall have obtained (or shall obtain) the planning,
zoning or similar permission for the Permanent Works, and any other
permissions described in the Specification as having been (or being)
obtained by the Employer; and the Employer shall indemnify and hold
the Contractor harmless against and from the consequences of any
failure to do so; and
2.13.2.
the Contractor shall give all notices, pay all taxes, duties and fees,
and obtain all permits, licenses and approvals, as required by the
Laws in relation to the execution and completion of the Works and
the remedying of any defects; and the Contractor shall indemnify and
hold the Employer harmless against and from the consequences of
any failure to do so.
Joint and Several Liability
If the Contractor constitutes (under applicable Laws) a joint venture, consortium or
other unincorporated grouping of two or more persons:
3.
2.14.1.
these persons shall be deemed to be jointly and severally liable to
the Employer for the performance of the Contract;
2.14.2.
these persons shall notify the Employer of their leader who shall have
authority to bind the Contractor and each of these persons; and
2.14.3.
the Contractor shall not alter its composition or legal status without
the prior consent of the Employer.
THE EMPLOYER
3.1.
Right of Access to the Site
The Employer/ Employer’s Representative or any person authorized by them shall at
all times have access to the Works and to the Site and to all workshops and places
where work is being prepared or when materials, manufactured articles or machinery
21
Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
are being obtained for the Works and the Contractor shall afford every facility for
any/every assistance in or in obtaining the right to such access.
The Employer shall give the Contractor right of access to, and possession of, all parts
of the Site within the time (or times) stated in the Form to Tender. The right and
possession may not be exclusive to the Contractor. If, under the Contract, the
Employer is required to give (to the Contractor) possession of any foundation,
structure, plant or means of access, the Employer shall do so in the time and manner
as required. However, the Employer may withhold any such right or possession until
the Performance Security has been received.
3.2.
Permits, Licenses or Approvals
The Employer shall provide reasonable assistance to the Contractor at the request of
the Contractor:
3.2.1.
for the Contractor’s applications for any permits, licenses or
approvals required by the Laws of the Country:
3.2.1.1.1.
3.2.1.1.2.
3.2.1.1.3.
3.3.
which the Contractor is required to obtain under
Clause 2.13 [Compliance with Laws],
for the delivery of Goods, including clearance
through customs, and
for the export of Contractor’s Equipment when it is
removed from the Site.
Employer’s Representative
The Employer shall be responsible for ensuring that the Employer’s Representative
and the Employer’s other contractors on the Site:
3.3.1.
co-operate with the Contractor’s efforts
3.3.2.
3.4.
Employer’s Financial Arrangements
3.4.1.
3.5.
take actions similar to those which the Contractor is required to take
under Clause 5.10 [Safety Procedures] and under Clause 5.21
[Protection of the Environment].
The Employer shall submit, within 28 days after receiving any request
from the Contractor, reasonable evidence that financial arrangements
have been made and are being maintained which will enable the
Employer to pay the Contract Sum (as estimated at that time) in
accordance with Clause 14 [Contract Sum and Payment]. If the
Employer intends to make any material change to his financial
arrangements, the Employer shall give notice to the Contractor with
detailed particulars.
Employer’s Claims
3.5.1.
If the Employer considers himself to be entitled to any payment under
any Clause of these Conditions or otherwise in connection with the
Contract, and/or to any extension of the Defects Liability Period, the
Employer or the Engineer shall give notice and particulars to the
Contractor. However, notice is not required for payments due under
22
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
Clause 5.22 [Electricity and Water], or for other services requested
by the Contractor.
4.
3.5.2.
The notice shall be given as soon as practicable after the Employer
became aware of the event or circumstances giving rise to the claim.
A notice relating to any extension of the Defects Liability Period shall
be given before the expiry of such period
3.5.3.
The particulars shall specify the Clause or other basis of the claim,
and shall include substantiation of the amount and/or extension to
which the Employer considers himself to be entitled in connection
with the Contract. The Engineer shall then proceed in accordance
with Clause 4.4 [Determinations] to agree or determine (i) the amount
(if any) which the Employer is entitled to be paid by the Contractor,
and/or (ii) the extension (if any) of the Defects Liability Period in
accordance with Clause 11.3 [Extension of Defects Liability Period].
3.5.4.
This amount may be included as a deduction in the Contract Sum
and Payment Certificates. The Employer shall only be entitled to set
off against or make any deduction from an amount certified in a
Payment Certificate, or to otherwise claim against the Contractor, in
accordance with this Clause.
THE ENGINEER
The term “Engineer" shall mean the representative of the Employer, and acting under
the orders of the Employer to inspect the works in the absence of the Employer the
Contractor shall afford the Engineer every facility and assistance for inspecting the
works and materials, and for checking and measuring, time and materials.
The Engineer or any representative of the Employer shall have power to give notice
to the Contractor or to his representative of non-approval of any work or materials,
and such work shall be suspended, or the use of such materials shall be discontinued
until the decision of the Employer is obtained. The works will from time to time ,be
examined by the Employer the Engineer or the other Engineer’s Representative but
such examination shall not in any way exonerate the Contractor from the obligation to
remedy any defects which may be found to exist at any stage of the works or after the
same is completed.
4.1.
Engineer’s Duties and Authority
4.1.1.
The duties of the Engineer are to watch and supervise the Works and
to test and examine any materials to be used or workmanship
employed in connection with the Works. He shall have no authority
to relieve the Contractor of any of his duties or obligations under the
Contract nor except as expressly provided hereunder or elsewhere in
the Contract to order any work involving delay or any extra
payment by the Employer nor to make any variation of or in the
works.
4.1.2.
The Engineer may from time to time in writing delegate to the
Engineer any of the powers and authorities vested in the Engineer
and shall furnish to the Contractor a copy of all such written
23
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
delegations of powers and authorities. Any written instruction or
approval given by the Engineer to the Contractor within the terms of
such delegation (but not otherwise) shall bind the Contractor and the
Employer, as though it had been given by the Engineer, provided
always as follows:
Failure of the Engineer to disapprove any work or materials shall not
prejudice the power of the Engineer thereafter to disapprove such work or
materials and to order the pulling down removal or breaking up thereof.
If the Contractor shall be dissatisfied by reason of any decision of the
Engineer's Representative he shall be entitled to refer the matter to the
Engineer who shall thereupon confirm, reverse or vary such decision.
4.2.
Delegation by the Engineer
The Engineer may from time to time assign duties and delegate authority to
assistants, and may also revoke such assignment or delegation. These assistants
may include a resident engineer, and/or independent inspectors appointed to inspect
and/or test items of Plant and/or Materials. The assignment, delegation or revocation
shall be in writing and shall not take effect until copies have been received by both
Parties. However, unless otherwise agreed by both Parties, the Engineer shall not
delegate the authority to determine any matter in accordance with Clause 4.4
[Determinations].
Assistants shall be suitably qualified persons, who are competent to carry out these
duties and exercise this authority, and who are fluent in the language for
communications defined in Clause 2.4 [Law and Language].
Each assistant, to whom duties have been assigned or authority has been delegated,
shall only be authorized to issue instructions to the Contractor to the extent defined
by the delegation. Any approval, check, certificate, consent, examination, inspection,
instruction, notice, proposal, request, test, or similar act by an assistant, in
accordance with the delegation, shall have the same effect as though the act had
been an act of the Engineer. However:
a. any failure to disapprove any work, Plant or Materials shall not constitute
approval, and shall therefore not prejudice the right of the Engineer to reject
the work, Plant or Materials;
b. if the Contractor questions any determination or instruction of an assistant,
the Contractor may refer the matter to the Engineer, who shall promptly
confirm, reverse or vary the determination or instruction.
4.3.
Instructions of the Engineer
The Engineer may issue to the Contractor (at any time) instructions and additional or
modified Drawings which may be necessary for the execution of the Works and the
remedying of any defects, all in accordance with the Contract. The Contractor shall
only take instructions from the Engineer, or from an assistant to whom the
appropriate authority has been delegated under this Clause. If an instruction
constitutes a Variation, Clause 13 [Variations and Adjustments] shall apply.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
The Contractor shall comply with the instructions given by the Engineer or delegated
assistant, on any matter related to the Contract. Whenever practicable, their
instructions shall be given in writing. If the Engineer or a delegated assistant:
1. gives an oral instruction,
2. receives a written confirmation of the instruction, from (or on behalf of) the
Contractor, within two working days after giving the instruction, and
3. does not reply by issuing a written rejection and/or instruction within two
working days after receiving the confirmation,
4.4.
Determination
Whenever these Conditions provide that the Engineer shall proceed in accordance
with this Clause 4.5 to agree or determine any matter, the Engineer shall consult with
each Party in an endeavour to reach agreement. If agreement is not achieved, the
Engineer shall make a fair determination in accordance with the Contract, taking due
regard of all relevant circumstances.
The Engineer shall give notice to both Parties of each agreement or determination,
with supporting particulars. Each Party shall give effect to each agreement or
determination unless and until revised under Clause 20 [Claims, Disputes and
Arbitration].
5.
THE CONTRACTOR
5.1.
Contractor’s General Obligations
5.1.1.
The Contractor shall Construct (to the extent specified in the
Contract), execute, (design to the extent specified in the contract)
and complete the Works in accordance with the Contract and with the
Engineer’s instructions, and shall remedy any defects in the Works.
5.1.2.
The Contractor shall provide the Plant and Contractor’s Documents
specified in the Contract, and all Contractor’s Representative, Goods,
consumables and other things and services, whether of a temporary
or permanent nature, required in and for this design, execution,
completion and remedying of defects.
5.1.3.
The Contractor shall be responsible for the adequacy, stability and
safety of all Site operations and of all methods of construction.
Except to the extent specified in the Contract, the Contractor
shall be responsible for all Contractor’s Documents, Temporary Works, and
such design of each item of Plant and Materials as is required for the item to
be in accordance with the Contract, and
shall not otherwise be responsible for the design or specification of the
Permanent Works.
5.1.4.
The Contractor shall, whenever required by the Engineer, submit
details of the arrangements and methods which the Contractor
proposes to adopt for the execution of the Works. No significant
alteration to these arrangements and methods shall be made without
this having previously been notified to the Engineer.
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Chennai Metro Rail Ltd, – Contract No.
5.1.5.
Part – (B) – Conditions of Contract
If the Contract specifies that the Contractor shall Construct any part
of the Permanent Works, then unless otherwise stated in the
Particular Conditions:
The Contractor shall submit to the Engineer the Contractor’s Documents for
this part in accordance with the procedures specified in the Contract;
These Contractor’s Documents shall be in accordance with the Specification
and Drawings, shall be written in the language for communications defined in
Clause 2.4 [Law and Language], and shall include additional information
required by the Engineer to add to the Drawings for coordination of each
Party’s designs;
The Contractor shall be responsible for this part and it shall, when the Works
are completed, be fit for such purposes for which the part is intended as are
specified in the Contract;
Prior to the commencement of the Tests on Completion, the Contractor shall
submit to the Engineer the “as-built” documents and operation and
maintenance manuals in accordance with the Specification and in sufficient
detail for the Employer to operate, maintain, dismantle, reassemble, adjust
and repair this part of the Works. Such part shall not be considered to be
completed for the purposes of Practical Completion under Clause 10.1
Practical Completion of the Works and Sections] until these documents and
manuals have been submitted to the Engineer.
5.2.
5.3.
Performance Guarantee/ Performance Bond
5.2.1.
The Contractor, within 7 days from the date of issue of LOA, shall
submit a Performance Bond from a Nationalized / Scheduled Bank in
India as Performance Bond for a sum equivalent to five percent
(5%) of the Contract value for the due performance of the Contract
under the terms of the conditions of Contract within time.
5.2.2.
The Performance Bond shall be in the form of Bank Guarantee as
per format in Appendix 3 approved by the Employer and shall remain
so deposited with the Employer and valid till the end of Defects
Liability Period.
5.2.3.
The said Performance Bond in the form of Bank Guarantee shall
indemnify the Employer against loss from defects arising from any
cause under this Contract or due to the failure of the Contractor to
promptly carry out any matters arising under this Contract.
Contractor’s Representative
5.3.1.
The Contractor shall appoint the Contractor’s Representative and
shall give him all authority necessary to act on the Contractor’s behalf
under the Contract.
5.3.2.
Unless the Contractor’s Representative is named in the Contract, the
Contractor shall, prior to the Commencement Date, submit to the
Engineer for consent the name and particulars of the person the
Contractor proposes to appoint as Contractor’s Representative. If
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
consent is withheld or subsequently revoked, or if the appointed
person fails to act as Contractor’s Representative, the Contractor
shall similarly submit the name and particulars of another suitable
person for such appointment.
5.4.
5.3.3.
The Contractor shall not, without the prior consent of the Engineer,
revoke the appointment of the Contractor’s Representative or appoint
a replacement.
5.3.4.
The whole time of the Contractor’s Representative shall be given to
directing the Contractor’s performance of the Contract. If the
Contractor’s Representative is to be temporarily absent from the Site
during the execution of the Works, a suitable replacement person
shall be appointed, subject to the Engineer’s prior consent, and the
Engineer shall be notified accordingly.
5.3.5.
The Contractor’s Representative may delegate any powers, functions
and authority to any competent person, and may at any time revoke
the delegation. Any delegation or revocation shall not take effect until
the Engineer has received prior notice signed by the Contractor’s
Representative, naming the person and specifying the powers,
functions and authority being delegated or revoked.
Subcontractors
5.4.1.
Specialist works such as sanitary & plumbing works, water proofing,
structural glazing, and metal cladding, aluminum doors, windows
and partitions, suspended false ceiling, granite and stone cladding,
special floor finishes, special wall finishes etc., covered in the Main
Contract work and any other areas of work identified by the
Employer / Employer’s representative / The Engineer shall be
undertaken by specialist agencies engaged by the Contractor as
Subcontractor on approval of the Employer after adopting the
procedures given below.
5.4.2.
Names of at least three and up to a maximum of five specialized
sub-agencies for each work shall be proposed at the time of
submission of Tender itself along with the details of scope,
experience, financial standing etc.
Such sub-agencies shall be
called Subcontractors.. The Employer / Employer’s Representative /
The Engineer will have the right to call for additional information as
may be required to assess the capability of Subcontractors or even
to inspect their previous works for fully satisfying themselves on the
performance of the Subcontractors. The Employer, thereafter will
convey their approval to the Contractor for selection of
Subcontractor, minimum being one number per trade or in the event
of a special need for engaging more than one such specialist, upto a
maximum of three in each trade. The successful Tenderer shall
engage only such approved Subcontractor. If The Employer/
Employer’s Representative / The Engineer is not satisfied with the
capacity and experience of the Subcontractor proposed by the
Contractor, the Employer / Employer’s Representative / The
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
Engineer shall have the right to nominate an agency / agencies
(called as Nominated Sub-contractors) of their choice whom the
Contractor shall be bound to engage forthwith. The decision of the
Employer / Employer’s Representative / The Engineer in identifying
and selection of Subcontractor shall be final and Tendering on the
Contractor. If during execution, the performance of any such
Subcontractor / Nominated Sub-contractor is found to be
unsatisfactory, the Employer shall reserve the right to order
termination of such Subcontractor / Nominated Subcontractor and
nominate alternative agency to continue the works. The Contractor
shall comply with such instructions promptly and effectively.
5.4.3.
All the terms and conditions under this Contract shall be equally
enforceable on the Subcontractor / Nominated Subcontractor for
each trade and accordingly the Contractor shall have a tie up with
each of the Subcontractor / Nominated Subcontractors.
5.4.4.
Both Nominated Subcontractor and Subcontractor shall further be
governed as under :
That the Subcontractor / Nominated Subcontractors shall carry out and
complete the sub-contract works in every respect to the reasonable
satisfaction of the Contractor and of the Employer’s Representative / The
Engineer.
That the Subcontractor shall observe, perform and comply with all the
provisions of this Contract on the part of the Contractor to be observed,
performed and complied with so far as they relate and apply to the Sub
Contract works or to any portion of the same.
That the Contractor shall indemnify the Employer against the same liabilities
in respect of the Subcontract work as those for which the Contractor is liable
to indemnify the Employer under this Contract and the Employer will not be
liable for any claims made by the Subcontractors against the Contractor.
That the Contractor shall indemnify the Employer against claims in respect
of any negligence, omission or default of such Subcontractor, his servants or
agents or any misuse by him or them of any scaffolding or other plant, and
shall insure himself against any such claims and produce the policy, or
policies and premium and premium receipts as and when required by the
Contractor or Employer’s Representative/ The Engineer.
That the Employer’s Representative / The Engineer and his representative
shall have right of access to the workshops and other places of the
Subcontractor as mentioned in (clause 3.1) of these conditions.
That the Subcontract work shall be completed within the period or (where
they are to be completed in sections) periods therein specified, that the
Contractor shall not without the written consent of the Employer’s
Representative / The Engineer grant any extension of time for the
completion of Subcontract work or any section thereof, and that the
Contractor shall inform the Employer’s Representative / The Engineer of any
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
representations made by the Subcontractor as to the cause of any delays in
the progress of completion of the Subcontract work or of any section thereof.
Before issuing any certificate under clause 14 of these conditions the
Employer’s Representative / The Engineer may request the Contractor to
furnish to him reasonable proof that all amounts included in the calculation
of the amount stated as due on previous certificates in respect of the total
value of work materials or goods executed or supplied by any Subcontractor
have been duly discharged and if the Contractor fails to comply with any
such request the Employer’s Representative / The Engineer shall issue a
certificate to that effect and thereupon the Employer may himself pay such
amounts to any Subcontractor concerned and deduct the same from any
sums due or to become due to the Contractor.
The Contractor shall not grant to any Subcontractor any extension of the
period within which the Subcontract work or (where the Subcontract works
are to be completed in sections) any section thereof is to be completed
without the written consent of the Employer’s Representative / The Engineer
always provided that the Contractor shall inform the Employer’s
Representative / The Engineer of any representation made by the
Nominated Direct Subcontract work or any section thereof and that the
consent of the Employer’s Representative / The Engineer shall not be
unreasonably withheld.
If any Subcontractor fails to complete the Subcontract work or (where the
Sub Contract works are to be completed in sections) any section thereof
within the period specified in the Contract or within the extended time
granted by the Contractor with the written consent of the Employer’s
Representative / The Engineer then if the same ought reasonably so to have
been completed the Employer’s Representative / The Engineer shall certify
in writing accordingly. Any such certificates shall be issued to the Contractor
and immediately upon issue the Engineer’s Representative / The Engineer
shall send a duplicate copy thereof to the Subcontractor.
If the Employer’s Representative / The Engineer desires to secure final
payment to any Subcontractor before final payment is due to the Contractor,
and if such Sub contractor has satisfactorily indemnified the Contractor
against any latent defects then the Employer’s Representative / The
Engineer may in an Interim Certificate include an amount to cover the said
final payment and thereupon the Contractor shall pay such Subcontractor
the amount so certified. Upon such final payment the amount named in the
Form of Tender to these conditions as limit of retention fund shall be
reduced by the sum which bears the same ratio to the said amount as does
such Subcontractor’s price to the Contract Sum, and save for latent defects
the Contractor shall be discharged from all liability for the work materials or
goods executed or supplied by such Subcontractor under the Subcontract to
which the payment relates.
Neither the existence nor the exercise of the foregoing powers nor anything
else contained in these conditions shall render the Employer in any way
liable to any Subcontractor.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
It shall be a condition of any Tender accepted under this paragraph that
clause 13.1 of these conditions shall apply in respect of the Item Work
included in the Tender as if for the reference therein to the Contract
Drawings and the Contract Bills there were references to the equivalent
documents included or referred in the Tender.
The Contractor shall for general attendance upon Subcontractors including
free use of plant scaffolding and is to allow them the use of sanitary
conveniences, storage facilities for storing materials, other amenities and
affording them all reasonable facilities for carrying out their Contracts.
5.5.
Assignment of Benefit of Subcontract
In respect of the work executed or the goods or materials supplied, in the event of a
sub- contractor having undertaken towards the Contractor any continuing obligation
extending for a period exceeding that of the Period of Maintenance under this
Contract, the Contractor shall at the expiration of the Period of Maintenance, assign
to the Employer at Employer's request the benefit of such obligation for the
unexpired duration thereof.
5.6.
Co-operation
The successful Tenderer must co-operate with the other Contractors appointed by
The Employer so that the work shall proceed smoothly without hindrance or delays
and to the satisfaction of the Employer / The Engineer / Employer’s Representative.
5.7.
Setting Out
The Contractor shall build and maintain throughout the contract period proper
permanent centre line pillars for each column and grid line and datum benchmarks
within his quoted rates. These shall not be disturbed at any time of the contract
period. Should therefore be any variation in the actual construction with reference to
the foregoing, the same shall be made good at his cost and risk before handing over
for possession by The Employer / The Engineer / Employer’s Representative.
5.8.
Post Construction Survey
The Contractor shall make post construction survey and report as soon as the
structural works for each floor are completed duly checking all the dimensions as
cast, verticality of the columns / walls, levels of slabs / beams soffits / stairs etc. Any
defects noticed beyond permissible tolerances shall be made good by the Contractor
as per instructions of The Employer / The Engineer / Employer’s Representative
without any extra cost and time.
5.9.
Joint Inspection
The Employer / The Engineer / Employer’s Representative shall conduct a joint
inspection with The Contractors’ authorized representative at every stage of the work,
immediately upon completion of such stage of works. The purpose of the joint
inspection is to observe and record any deviations from the specified tolerances /
levels, plumb or any quality defects or any such issues which require immediate
attention / action from the Contractor to make good or rectify such defects or
30
Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
observations jointly recorded. Such joint inspections can be held at any time as
deemed fit and shall be binding on the Contractor to act upon and implement without
any extra cost the directions arising out of such joint inspections. Failure / delay in
holding such joint inspections shall not absolve the Contractor from his
responsibilities to rectify any defects which may be subsequently noticed at any time
after the respective stages of work.
5.10.
Safety Procedures:
The Contractor shall exercise precaution at all times for the protection of persons and
their property. The Contractor shall install adequate safety guards and protective
devices for all equipment and machinery. The Contractor shall also provide and
adequately maintain all proper temporary walks, roads, guards, railings, lights and
warning signs. The Contractor shall comply with all applicable laws relating to safety
precautions, including the safety regulations of The Employer’s Representative. If The
Contractor designates other employees, its Foreman shall have the duty of
prevention of accidents. The Contractor shall institute a safety program, which
includes all trades on the site. Renovation, expansion, or remodel work of any
existing building may expose workers to lead-containing materials such as paint,
flashings and pipe joints. The Contractor shall comply with all applicable laws
addressing such exposure. The Employer and The Employer Representative may
bring to the attention of The Contractor a possible hazardous situation in the field
regarding the safety of Representative on the site. The Contractor shall be
responsible for verifying that all local, state and Government workplace safety
guidelines are being observed. In no case shall this right to notify The Contractor
absolve The Contractor of its responsibility for monitoring safety conditions. Such
notification shall not imply that anyone other than The Contractor has assumed any
responsibility for field safety operations. In the event of an accident, The Contractor
shall make available to The Employer copies of its accident report to its insurance
carrier. The Contractor shall determine the cause of the accident and immediately
correct any equipment, procedure or condition contributing to the accident. The
contractor shall follow the Hand Book of Health and Safety at Work provided as part
of Part 1 (C) Technical Specifications.
5.11.
Quality Assurance
5.11.1.
The Contractor shall be fully responsible for the quality of materials
and workers skill in the project. The Contractor shall insist upon and
carry out on his own all the inspections and testing. Contractor shall
maintain full documentation Quality Control process both in-house
and third party and shall make it available to The Employer / The
Engineer / Employer’s Representative with free access.
The
Employer / The Engineer / Employer’s Representative reserve the
right to insist upon their being present at special inspections and
tests performed by The Employer ’s selected laboratories. All Third
party tests / inspections shall be in the form of written reports.
5.11.2.
Tenderer shall submit in his own format, checklists and quality
manuals in order to achieve quality assurance guidelines. This will
include inspection & testing and may include a Quality Assurance
plan and structural observations where applicable. All materials and
installation shall be tested in line with the BIS Codes and also Local
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
authority requirements. The Tenderer has to outline the methodology
to be adopted for the execution of the works for ensuring full
compliance with the entire testing and validation of materials,
workmanship, services and other installation.
5.12.
5.13.
Burden for Damage
5.12.1.
From the issuance of the official Notice to Proceed until formal
acceptance of the project by The Employer, The Contractor shall
have the charge and care of and shall bear the risk of damage to the
project and materials and equipment for the project. The Contractor,
at its own expense, shall promptly rebuild, repair, restore and make
good all such damage to any portion or to all of the project and
materials therefore before the acceptance of the project by The
Employer except for such damage as is proximately caused by acts
of The Employer. In case of suspension of work from any cause
whatsoever, The Contractor shall be responsible for all materials and
shall properly store them, if necessary and shall provide suitable
drainage and erect temporary structures where necessary. If The
Contractor damages any property belonging to the Employer , The
Employer may, in addition to other remedies available to The
Employer , retain from the money due to The Contractor an amount
sufficient to ensure repair of the damage or an amount to contribute
towards repair of the damage. The Contractor shall be responsible
for any damage to the project and materials and equipment for the
project.
5.12.2.
The Contractor shall also be responsible for handling and resolving
all potential objections or hindrances arising out of complaints etc.
from neighbours and others who may claim to be affected by the
construction activity.
Site Data
Before Tendering, the Contractor shall have visited and examined the site and
satisfied himself as to the nature of the existing roads or other means of
communication and the character of the soil and of the excavations, the correct
dimensions of the work, and the facilities for obtaining any special articles called for in
the Contract Document and shall have obtained generally his own information on all
matters affecting the continuation and progress of the works.
No extra charge made in consequence of any misunderstanding or incorrect
information on any of these points or on the grounds of insufficient description will be
allowed. Should the Contractor after visiting the site find any discrepancies,
omissions, ambiguities or conflicts in or among the Contract Document or be in doubt
as to their meaning he shall bring, the questions to the Employer's attention not later
than 48 Hours before the pre-bid meeting, with the Employer.
5.14.
Sufficiency of the Accepted Contract Amount
The Contractor shall be deemed to:
32
Chennai Metro Rail Ltd, – Contract No.
5.14.1.
5.14.2.
5.15.
Part – (B) – Conditions of Contract
have satisfied himself as to the correctness and sufficiency of the
Accepted Contract Amount, and
have based the Accepted Contract Amount on the data,
interpretations, necessary information, inspections, examinations and
satisfaction as to all relevant matters referred to in Clause 5.13 [Site
Data].
Unforeseeable Physical Conditions
If, however, during the execution of the Works adverse physical conditions (other
than weather conditions or conditions due to weather conditions or soil or
groundwater conditions) or artificial obstructions are encountered, the Contractor
shall forthwith give written notice thereof to the Engineer and if (in either case) such
conditions could not in the opinion of the Engineer have been reasonably foreseen by
an experienced contractor, then the Engineer shall certify and the Employer shall pay
the additional expense to which the Contractor shall have been put by reason of such
conditions including the proper and reasonable expenses:
a. of complying with any instruction which the Engineer may issue to the
Contractor in connection therewith and
b. of any proper reasonable measures approved by the Engineer which the
contractor may take in the absence of specific instruction from the Engineer.
c. Provided that Engineer shall not certify any additional expenses until the
same are approved by the Employer in writing.
5.16.
Rights of Way and Facilities
The Contractor shall bear all costs and charges for special and/or temporary right ofway which he may require, including those for access to the Site. The Contractor
shall also obtain, at his risk and cost, any additional facilities outside the Site which
he may require for the purposes of the Works.
5.17.
Avoidance of Interference
The Contractor shall not interfere unnecessarily or improperly with:
1. the convenience of the public, or
2. the access to and use and occupation of all roads and footpaths, irrespective
oF whether they are public or in the possession of the Employer or of others.
5.18.
Access Route
The Contractor shall be deemed to have been satisfied as to the suitability and
availability of access routes to the Site. The Contractor shall use reasonable efforts to
prevent any road or bridge from being damaged by the Contractor’s traffic or by the
Contractor’s Representative. These efforts shall include the proper use of appropriate
vehicles and routes.
Except as otherwise stated in these Conditions:
a. The Contractor shall (as between the Parties) be responsible for any
maintenance which may be required for his use of access routes;
b. the Contractor shall provide all necessary signs or directions along access
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Chennai Metro Rail Ltd, – Contract No.
c.
Part – (B) – Conditions of Contract
routes, and shall obtain any permission which may be required from the
relevant authorities for his use of routes, signs and directions
The Employer shall not be responsible for any claims which may arise from
the use or otherwise of any access route,
d. The Employer does not guarantee the suitability or availability of particular
access routes, and
e. Costs due to non-suitability or non-availability, for the use required by the
Contractor, of access routes shall be borne by the Contractor.
5.19.
Transport of Goods
Except where otherwise specified, the Contractor shall at his own expense supply
and provide all the Constructional plant, Temporary Works, materials both for
Temporary and for permanent Works/Plant/Equipment, Labour (including the
supervision thereof) transport to or from the Site and in and about the Works and
other things of every kind required for the construction, completion and maintenance
of the Works/Plant/ Equipment.
5.20.
Contractor’s Equipment
The Contractor shall provide and install all necessary cranes, hoists, ladders,
scaffolding, tools, tackles, plants, dewatering equipment, shoring, strutting etc., all
transport for labour, materials and plant necessary, for the proper carrying on
execution, and completion of the work, to the satisfaction of the Employer.
5.21.
Protection of the Environment
The Contractor shall take all reasonable steps to protect the environment (both on
and off the Site) and to limit damage and nuisance to people and property resulting
from pollution, noise and other results of his operations. The Contractor shall ensure
that emissions, surface discharges and effluent from the Contractor’s activities shall
not exceed the values indicated in the Specification, and shall not exceed the values
prescribed by applicable Laws.
5.22.
Electricity and Water
The Contractor shall be responsible to supply of electricity and water required for all
the works including that of all other agencies directly engaged by him such as Direct
Sub-contractors etc. The Contractor shall ensure uninterrupted power and water
supply at site by receiving temporary power supply through Electricity Department
after arriving with exact demand and keeping in mind the future demands of power.
Diesel generators of required numbers also shall be arranged at appropriate places at
site as a stand by measure to meet out the demand to run the site 24x7 basis.
Nothing extra shall be paid on this account.
5.23.
Progress Reports
The Contractor shall prepare programme charts according to the Conditions of
Contract, and submit the same for approval of the Employer and for his record within
two weeks of the Acceptance of the Contract. The charts shall indicate the expected
date of commencement and completion of each of the items of the work and shall be,
in a form approved by the Engineer. The chart shall also indicate the scheduling of
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
samples, Shop Drawings and approvals.
Photographs and Video Cassettes:
The Main Contractor shall take photos and videos from the locations approved by the
Employer / Employer’s Representative to show the progress of work at regular
intervals, throughout the Construction Period, and furnish three sets of Photographs
of minimum size of 200 X 150 MM with date embossed on the Photograph and video
Compact Disks of required duration, duly indicating therein the specified number of
negative / prints affixed in albums. Each photograph shall be marked with the
description of the photograph and location from which it was taken.
The negatives shall be dated, location labeled, and retained by the Contractor, to
enable further prints, to be obtained, as and when, required by the Employer /
Employer’s Representative .
5.24.
Security of the Site
The Contractor shall make his own security arrangements to guard the Site and
premises at all times, at his own expense. The security arrangements shall be
adequate to maintain strict control on the movement of material and labour.The
Contractor shall extend the security arrangements to guard the material stored and/or
fixed on the premises by the Sub-Contractors.
5.25.
Protection of Adjoining Facilities
The Contractor shall protect adjoining property and nearby buildings, roads and other
facilities and improvements from dust, dirt, debris and other nuisances arising out of
Contractor’s operations. Dust shall be controlled by sprinkling or other effective
methods acceptable to The Employer . An erosion and sedimentation control program
shall be initiated, which includes measures addressing erosion caused by wind and
water and sediment in runoff from site. A regular watering program shall be initiated
to adequately control the amount of fugitive dust in accordance with applicable Law.
5.26.
Contractor’s Operations on Site
The Contractor shall confine his operations to the Site, and to any additional areas
which may be obtained by the Contractor and agreed by the Engineer as working
areas. The Contractor shall take all necessary precautions to keep Contractor’s
Equipment and Contractor’s Representative within the Site and these additional
areas, and to keep them off adjacent land.
During the execution of the Works, the Contractor shall keep the Site free from all
unnecessary obstruction, and shall store or dispose of any Contractor’s Equipment or
surplus materials. The Contractor shall clear away and remove from the Site any
wreckage, rubbish and Temporary Works which are no longer required.
Upon the issue of a Practical Completion Certificate, the Contractor shall clear away
and remove, from that part of the Site and Works to which the Practical Completion
Certificate refers, all Contractor’s Equipment, surplus material, wreckage, rubbish and
Temporary Works. The Contractor shall leave that part of the Site and the Works in a
clean and safe condition. However, the Contractor may retain on Site, during the
Defects Liability Period, such Goods as are required for the Contractor to fulfil
obligations under the Contract.
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Chennai Metro Rail Ltd, – Contract No.
5.27.
Site
Office:
Part – (B) – Conditions of Contract
(Accommodation
for
Employer
/
Employer’s
Representative)
The Contractor shall, within the quoted rates provide for fully furnished and airconditioned Site Office Accommodation for the representatives of Employer /
Employer’s Representative /The Engineer with necessary DG and UPS back up. The
contractor shall maintain and run the facilities till the certification of the final. The
quoted rates shall include for this facilities. Such accommodation shall consist of :
5.27.1.
An air-conditioned meeting hall to seat 20 persons with necessary
facilities for projector, write-on board, soft boards for display etc.
5.27.2.
The Employer representative’s air conditioned office space to seat
about 8 persons with a minimum of 1.5 mts x 0.6 mts work surface
with necessary facilities for storage of drawings and records.
5.27.3.
Two air conditioned cabins of 2.4 x 3mts for the Employer / The
Engineer / Employer’s Representative.
5.27.4.
The Employer / The Engineer / Employer’s Representative air
conditioned office to seat about 16 persons with a minimum of 1.5
mts x 0.6 mts work surface with necessary facilities for storage of
drawings and records.
5.27.5.
Temporary toilet facilities for men & women (All western)
5.27.6.
Pantry equipped with a RO drinking water facility / Branded bubble
top water dispensers, fridge, sink, microwave and drain board and
storage space.
5.27.7.
A room for keeping samples, approved materials etc
5.27.8.
Facilities such as Pantry including preparation consumables for
preparation and serving of Coffee / Tea, dining space for 10
persons, required office boys and maintenance for entire contract
period shall be provided.
5.27.9.
Provide and Maintain for the exclusive use of the Employer /
Employer’s Representative / The Engineer and Consultants 40
safety helmets, 40 fluorescent jacket and 40 pairs of safety boots of
assorted sizes as required.
5.27.10.
Provide when required, for the use of the Employer / The Engineer /
Employer’s Representative a theodolite, level and other instruments
together with surveying assistance.
5.27.11.
The layout of the site office shall be submitted to the Employer / The
Engineer / Employer’s Representative for approval prior to erecting /
constructing.
5.27.12.
All the above rooms shall be provided with adequate lighting, air
conditioners and plug points suitable for operating computers for
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Part – (B) – Conditions of Contract
each of the 16 representative and the required software, One Fax
and copiers, Two A3 Laser printer, with dedicated internet facilities,
stationeries (Papers, files etc) etc. By furnishing, it is meant that all
tables, chairs, side units, cupboards etc., shall be provided by the
Tenderer. All rooms shall benefit from natural lighting and cross
ventilation. Windows and ventilators shall be provided with security
grilles and shall also be provided with insect proof mesh.
5.27.13.
All the above areas shall be built to avoid water logging around the
office accommodation with clear access. The structure shall be
weather tight. The Tenderer shall include in his rates the charges
for day-to-day cleaning and maintenance as well as housekeeping
of the entire Site Office Accommodation. The charges towards
electricity consumed in the Site Office and all maintenance and
upkeep shall be absorbed within the quoted rates.
5.27.14.
The Contractor shall submit layout details etc prior to installation for
the approval of the Employer / Employer’s Representative / The
Engineer
5.27.15.
At the time of the successful handing over of the project to the
Employer or at any time earlier, as directed by the Employer, the
Contractor shall arrange to dismantle the entire structure and
remove the accommodation including debris and restore the site as
directed, all within the quoted rates.
5.28.
Vector Control
The Contractor is required to implement a comprehensive and effective vector
control programme for the site which shall include all necessary measures to prevent
the site from becoming favourable to the breeding or harbouring of mosquitoes or
other vectors. Vector control work must include the basements and all floors of the
building as and when they are being constructed and shall comprise:
●
Checking for mosquito breeding at least once a week.
●
Larviciding all stagnant water using insecticides or anti-mosquito oil at least
once a fortnight.
●
Thermal fogging at least once a fortnight.
Thermal fogging to site offices and workmen’s accommodation shall be carried out
fortnightly and if the Site is located within malaria – sensitive area, residual spraying
of the walls at monthly intervals shall be required
5.29.
Fossils / Antiquities
All fossils, coins, articles of value or antiquity, and structures and other remains or
items of geological or archaeological interest found on the Site shall be placed under
the care and authority of the Employer. The Contractor shall take reasonable
precautions to prevent Contractor’s Representative or other persons from removing
or damaging any of these findings. The Contractor shall, upon discovery of any such
finding, promptly give notice to the Employer’s Representative / The Engineer / The
Employer, who shall issue instructions for dealing with it.
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Chennai Metro Rail Ltd, – Contract No.
6.
Part – (B) – Conditions of Contract
STAFF AND LABOUR
6.1.
6.2.
Engagement of Staff and Labour
6.1.1.
The Contractor shall make his own arrangements for engagement
of all labour, local or otherwise, and save in so far as the Contract
otherwise provides for the transport, housing (not at the Employer’s
site), feeding and payment thereof.
6.1.2.
The Contractor shall provide on the Site to the satisfaction of the
Employer's Representative’s an adequate supply of drinking and
other water for the use of the Contractor 's staff and work people.
6.1.3.
The Contractor shall, in all dealings with labor in his employ, have
due regard to all recognized festivals, days of rest and religious or
other customs.
6.1.4.
The Contractor shall be responsible for observance by his subcontractors of the foregoing provisions.
6.1.5.
The Contractor shall employ labour in sufficient number to maintain
the required rate of progress and of quality to ensure a workmanship
of the degree required by the Specification and to the satisfaction of
the Employer / The Engineer / Employer’s Representative. He shall
be responsible at his own cost for all recruiting, transport, welfare,
sanitary and other accommodation, provision of necessary
passports or permits for all Representative and employees required
for this contract.
6.1.6.
All workmen engaged by the Contractor shall be the Contractor’s
employees and no such workmen shall have any claim or right
whatsoever, against the Employer either during the validity of this
contract or after its completion/termination.
6.1.7.
The Contractor will bear the cost of any charges levied by the local
Authority for the execution of such work by the local Authority on his
behalf.
Rates of Wages and Conditions of Labour
The Contractor shall pay rates of wages, and observe conditions of labour, which are
not lower than those established for the trade or industry where the work is carried
out. If no established rates or conditions are applicable, the Contractor shall pay rates
of wages and observe conditions which are not lower than the general level of wages
and conditions observed locally by employers whose trade or industry is similar to
that of the Contractor.
6.3.
Persons in the Service of Employer
The Contractor shall not recruit, or attempt to recruit, staff and labour from amongst
the Employer’s Representative.
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6.4.
6.5.
Part – (B) – Conditions of Contract
Labour Laws
6.4.1.
The Contractor shall remain liable for the payment of all wages or
other monies to his workmen, or employees under the Payment of
Wages Act, 1936, Minimum Wages Act, 1948, Employees liability
Act, 1936, Workmen's Compensation Act, 1923 or any other Act or
enactments relating thereto and rules framed thereunder from time
to time.
6.4.2.
The Contractor shall comply fully with local laws dealing with the
employment
of persons including the
Indian Employment of
Children Act, 1938, the Indian Workmen's Compensation Act, 1923,
the Factories Act, 1948, the Minimum Wages Act, 1948, the
Employees State Insurance Act, 1948, Contract Labour (Regulations
and Abolition) Act, 1970, Employees Provided Funds &
Miscellaneous Provisions Act, 1952 and any statutory amendment or
re-enactment thereof for the time being in force.
6.4.3.
The Contractor may employ female labour if he chooses but he shall
not employ in connection with the works any person who has not
completed the minimum age (18 – eighteen) as per law locally
applicable.
Working Hours
The Contractor shall work only on and during the hours of a working day unless he
obtains the prior written approval of the Employer /Employer’s Representative to do
otherwise. If such approval is given, no liability in respect of any excess cost arising
therefrom shall be incurred by the Employer.
6.6.
Facilities for Staff and Labour
6.6.1.
The Contractor, during the progress of the Works, shall provide,
erect and maintain at his own expense and to approved standards
and scales all necessary temporary sanitary accommodation
required for his workmen on the Site in connection with the
execution of the Works. The planning, sitting and erection of these
buildings shall be approved by the Employer / Employer’s
Representative and the whole of such temporary accommodation
shall, at all times during the progress of the Works, be kept tidy and
in a clean and sanitary condition to the entire satisfaction of the
Employer / Employer’s Representative and at the Contractor 's
expense. The Contractor shall conform to the sanitary requirement
of local Medical and Health authorities, and at all times adopt such
precautions as may be necessary to prevent soil pollution of the
Site.
6.6.2.
The Contractor shall, at his expense, conform to all anti-malarial
instructions given to him by the Employer / Employer’s
Representative or by any local authority including the filling up of
borrow pits.
6.6.3.
The Contractor shall, at his own expense, carry out all instructions
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
issued to him by the to effect a proper disposal of night soil and
other conservancy work in respect of the Contractor’s workmen or
employees on the Site. He shall also conform to the sanitary
requirements of the Local Medical and Health Authorities.
6.7.
6.6.4.
The Contractor shall provide and maintain upon the Works
sufficient, proper and efficient life-saving appliances and first-aid
equipment to the approval of the Employer / Employer’s
Representative and in accordance with the requirements of I.L.O.
Convention No. 62. The appliances and equipment shall be
available for use at all times.
6.6.5.
If the Site is within an existing industrial establishment belonging to
the Employer, the Contractor, Subcontractors and their the
Employers shall strictly comply with the Employer's regulations in
regard to ingress, egress, traffic, security and conduct for the
establishment. The Contractor shall be responsible for observance
by his sub-contractors of the foregoing provisions.
6.6.6.
In the event of any outbreak of illness of an epidemic nature, the
Contractor shall comply with and carry out such regulations, orders
and requirements as may be made by the Government or the local
medical or sanitary authorities for the purpose of dealing with and
overcoming the same.
Health and Safety
The Contractor shall at all times take all reasonable precautions to maintain the
health and safety of the Contractor’s Representative. In collaboration with local health
authorities, the Contractor shall ensure that medical staff, first aid facilities, sick bay
and ambulance service are available at all times at the Site and at any
accommodation for Contractor’s and Employer’s Representative, and that suitable
arrangements are made for all necessary welfare and hygiene requirements and for
the prevention of epidemics.
6.7.1.
Safety Code and Safety Rules:
A. First Aid Facility shall be maintained in a readily accessible place with first aid
appliances including adequate supply of sterilized dressings and cotton wool.
B. An injured person shall be taken to a public hospital without loss of time, in
cases where the injury necessitates hospitalization.
C. Suitable and strong scaffolds should be provided for workmen for all works
that cannot safely be done from ground.
D. No portable single ladder shall be over 8 meters in length. The width between
the side rails shall not be less than 30 cm. (clear) and the distance between
two adjacent rungs shall not be more than 30cm. When a ladder is used an
extra mazdoor shall be engaged for holding the ladder.
E. The excavation material shall not be placed within 1.5 meters of the edge of
the trench or half of the depth of trench whichever is more. All trenches and
excavations shall be provided with necessary fencing and lighting.
F. Every opening in the floor of a building or in a working platform be provided
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Part – (B) – Conditions of Contract
with suitable means to prevent the fall of persons or materials by providing
suitable fencing or railing whose minimum height shall be one metre.
G. No floor, roof or other part of the structure shall be so overloaded with debris
or materials as to render it unsafe.
H. Workers employed on mixing and handling material such as asphalt, cement
mortar or concrete and lime mortar shall be provided with protective footwear
and rubber hand gloves.
I.
Those engaged in welding works should be provided with welder's protective
eye shields and gloves. All persons at site shall wear shoes and protective
safety helmets approved for construction sites.
J.
No paint containing lead or lead products shall be used except in the form of
paste or readymade paint.
K. Suitable face masks should be supplied for use by the workers when the
paint is applied in the form of spray or surface having lead paint dry rubbed
and scrapped.
L. Overalls shall be supplied by the Contractor to the painters and adequate
facilities shall be provided to enable the working painters to wash during the
period of cessation of work.
M. Hoisting machines and tackle used in the works, including their attachments,
anchorage and supports shall be in perfect condition.
N. The ropes used in hoisting or lowering material or as a means of suspension
shall be of durable quality and adequate strength and free from defects.
O. The safety features like nets, canvas sheets etc. shall be provided while men
are working at heights.
6.8.
Contractor’s Superintendence
Throughout the execution of the Works, and as long thereafter as is necessary to fulfil
the Contractor’s obligations, the Contractor shall provide all necessary
superintendence to plan, arrange, direct, manage, inspect and test the work.
Superintendence shall be given by a sufficient number of persons having adequate
knowledge of the language for communications (defined in Clause 2.4 [Law and
Language]) and of the operations to be carried out (including the methods and
techniques required, the hazards likely to be encountered and methods of preventing
accidents), for the satisfactory and safe execution of the Works.
6.9.
Contractor’s Representative
The Contractor’s Representative shall be appropriately qualified, skilled and
experienced in their respective trades or occupations. The Engineer may require the
Contractor to remove (or cause to be removed) any person employed on the Site or
Works, including the Contractor’s Representative if applicable, who:
1.
2.
3.
4.
persists in any misconduct or lack of care,
carries out duties incompetently or negligently,
fails to conform with any provisions of the Contract, or
persists in any conduct which is prejudicial to safety, health, or the protection
of the environment.
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6.10.
Part – (B) – Conditions of Contract
Records of Contractor’s Representative and Equipment
The Contractor shall submit, to the Engineer, details showing the number of each
class of Contractor’s Representative and of each type of Contractor’s Equipment on
the Site. Details shall be submitted each calendar month, in a form approved by the
Engineer, until the Contractor has completed all work which is known to be
outstanding at the completion date stated in the Practical Completion Certificate for
the Works.
6.11.
7.
Disorderly Conduct:
6.11.1.
The Contractor shall at all times take all reasonable precautions to
prevent any unlawful, riotous or disorderly conduct by or amongst his
employees and for the preservation of peace and protection of
persons and property in the neighbourhood of the Works against the
same.
6.11.2.
The Contractor will not at any time do, cause or permit any
nuisance on the Site or adjoining areas or do anything which shall
cause unnecessary disturbance or inconvenience to the Employers,
tenants or occupiers of other properties near the Site and to the
Authorities or to the public generally and will secure the efficient
protection of all land and sea areas against pollution.
PLANT, MATERIALS AND WORKMANSHIP
7.1.
Manner of Execution
Except where otherwise specified, the Contractor shall at his own expense supply
and provide all the Constructional plant, Temporary Works, materials both for
Temporary and for permanent Works/Plant/Equipment, Labour (including the
supervision thereof) transport to or from the Site and in and about the Works and
other things of every kind required for the construction, completion and maintenance
of the Works/Plant/ Equipment.
7.2.
Samples
The Contractor shall submit the following samples of Materials, and relevant
information, to the Engineer for consent prior to using the Materials in or for the
Works:
1. manufacturer’s standard samples of Materials and samples specified in the
Contract, all at the Contractor’s cost, and
2. Additional samples instructed by the Engineer as a Variation.
Each sample shall be labeled as to origin and intended use in the Works.
7.3.
Inspection
The Contractor shall inspect and examine the site and its surroundings and shall
satisfy himself before submitting his tender as to the nature of the ground and sub soil
and form and nature of the site, the quantities and nature of the work and materials
necessary for the completion of the Works and the means of access to the site, the
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Part – (B) – Conditions of Contract
accommodation he may require, & in general, shall himself obtain all necessary
information as to risk contingencies and other circumstances which may influence or
affect his tender.
7.4.
Testing
All materials and workmanship shall be of the respective kinds described in the
Contract and in accordance with the Engineer's instructions and shall be subjected
from time to time to such tests as the Engineer may direct at the place of
manufacture or fabrication or on the Site or at all or any of such places. The
Contractor shall provide adequate samples and materials as are normally required
for examining measuring and testing any work and the quality, weight or quantity of
any materials through a third party testing agent before incorporation in the Works
as required by the Engineer or Employer.
7.5.
Rejection
If, as a result of an examination, inspection, measurement or testing, any Plant,
Materials or workmanship is found to be defective or otherwise not in accordance with
the Contract, The Employer / The Engineer / Employer’s Representative may reject
the Plant, Materials or workmanship by giving notice to The Contractor , with reasons.
The Contractor shall then promptly make good the defect and ensure that the
rejected item complies with the Contract. If The Employer / The Engineer /
Employer’s Representative require this Plant, Materials or workmanship to be re
tested, the tests shall be repeated under the same terms and conditions. If the
rejection and retesting cause the Employer to incur additional costs, The Contractor
shall be subject to penalty.
7.6.
Remedial Work
Notwithstanding any previous test or certification, The Employer / The Engineer /
Employer’s Representative may instruct The Contractor to:
7.6.1.
7.6.2.
7.6.3.
remove from the Site and replace any Plant or Materials which is not
in accordance with the Contract,
remove and re-execute any other work which is not in accordance
with the Contract, and
Execute any work which is urgently required for the safety of the
Works, whether because of an accident, unforeseeable event or
otherwise.
The Contractor shall comply with the instruction within a reasonable time, which shall
be the time (if any) specified in the instruction.
7.7.
Employership of Plant and Materials:
Each item of Plant and Materials shall, to the extent consistent with the Laws of the
Country, become the property of the Employer at whichever is the earlier of the
following times, free from liens and other encumbrances:
a. when it is delivered to the Site;
b. when the Contractor is entitled to payment of the value of the Plant and
Materials under Clause 16.3 [Payment for Plant and Materials in Event of
Suspension.
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7.8.
Part – (B) – Conditions of Contract
Storage of Materials
The Contractor shall provide, erect and maintain proper sheds for the storage and
protection of the materials etc. and also for the execution of Work which may be
prepared on the Site. Sheds used for the storage of cement, lime and other
perishable materials shall have raised floors. All petroleum, explosives and
flammable materials shall be stored in fire-proof buildings and precautions taken with
regard to siting and fire risks.
7.9.
Temporary Hoardings and Safety Netting
The site is to be enclosed by a hoarding (with gates) and painted on all exposed
surfaces in patterns and colours to the approval of the Employer / Employer’s
Representative. Provide and maintain all other necessary temporary fencing,
hoarding, gates, fans, planked footways, guard rails, gantries, safety netting, warning
lights and notices for the proper execution of the Works, the security of the Site, the
protection of the public and the occupants of any adjoining premises and for meeting
the requirements of the Local Authority Alter, shift and adopt from time to time as
necessary and clear away on completion.
7.10.
7.11.
Pollution and Site Hygiene
7.10.1.
Mechanical plant, equipment, etc. which emits smoke, fumes or
other obnoxious gases will not be allowed on the site
7.10.2.
Provide and maintain temporary channels, drains and the like for
keeping the Site clear of water.
7.10.3.
Take all reasonable precautions to ensure the efficient protection of
all streams and waterways against pollution arising out of or by
reason of the execution of the Works.
7.10.4.
The Contractor shall not dump unwanted building debris, chemicals,
any noxious or polluting matter on any vacant plot of land, roadside
or drains thereby causing chokage leading to mosquito breeding or
causing contamination of the Site or the drainage system.
7.10.5.
Comply with and pay all charges levied by any Government or
Public Authority with jurisdiction on matters of pollution or site
hygiene
Fire Protection during Construction
Provide and keep in working order adequate firefighting equipment for emergency
use.
7.12.
Royalties
Unless otherwise stated in the Specification, the Contractor shall pay all royalties,
rents and other payments for:
1. Natural Materials obtained from outside the Site, and
2. the disposal of material from demolitions and excavations and of other
surplus material (whether natural or man-made), except to the extent that
disposal areas within the Site are specified in the Contract.
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Chennai Metro Rail Ltd, – Contract No.
8.
Part – (B) – Conditions of Contract
COMMENCEMENT, DELAYS AND SUSPENSION
8.1.
Commencement of Works
The LOA (letter of acceptance) shall be issued to the successful tenderer within 15
days from the Date of opening the Financial Tender (Part 2). The Agreement shall be
signed within 28 days from the date of LOA, unless otherwise agreed. The Contractor
shall commence the Works from the Date of signing of the Agreement. Thereafter the
Contractor shall proceed with due diligence, without delay, and in accordance with
the programme or any revised or modified programme of the Works. Time will be the
essence of Contract and time for Completion shall run from the date the Contractor is
to commence the Works under this Clause.
The Contractor shall not commence the construction, manufacture or installation of
the Works or of any part of the Works unless and until the Engineer has endorsed the
relevant Working Drawings in accordance with the Employer's Requirements.
8.2.
Period of Completion
The Contractor shall complete the whole of the Works, and each Section (if any),
within the “Period of Completion” 24 months from the date of Signing of the
Agreement.
a. achieving the passing of the Tests on Completion, and
b. completing all work which is stated in the Contract as being required for the
Works or Section to be considered to be completed for the purposes of
Practical Completion under Clause 10.1 [Practical Completion of the Works
and Sections].
8.3.
Programme
The Contractor shall submit a detailed time programme to the Engineer within 28
days after receiving the notice under Clause 8.1 [Commencement of Works]. The
Contractor shall also submit a revised programme whenever the previous programme
is inconsistent with actual progress or with the Contractor’s obligations. Each
programme shall include:
a. the order in which the Contractor intends to carry out the Works, including the
anticipated timing of each stage of design (if any), Contractor’s Documents,
procurement, manufacture of Plant, delivery to Site, construction, erection
and testing,
b. each of these stages for work by each nominated Subcontractor
c.
the sequence and timing of inspections and tests specified in the Contract
and
d. a supporting report which includes:
i.
a general description of the methods which the Contractor intends to
adopt, and of the major stages, in the execution of the Works, and
ii.
details showing the Contractor’s reasonable estimate of the number
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Part – (B) – Conditions of Contract
of each class of Contractor’s Representative and of each type of
Contractor’s Equipment, required on the Site for each major stage.
Unless the Engineer, within 21 days after receiving a programme, gives notice to the
Contractor stating the extent to which it does not comply with the Contract, the
Contractor shall proceed in accordance with the programme, subject to his other
obligations under the Contract. The Employer’s Representative shall be entitled to
rely upon the programme when planning their activities.
The Contractor shall promptly give notice to the Engineer of specific probable future
events or circumstances which may adversely affect the work, increase the Contract
Sum or delay the execution of the Works. The Engineer may require the Contractor to
submit an estimate of the anticipated effect of the future event or circumstances,
and/or a proposal under Clause 13.3 [Variation Procedure].
If, at any time, the Engineer gives notice to the Contractor that a programme fails (to
the extent stated) to comply with the Contract or to be consistent with actual progress
and the Contractor’s stated intentions, the Contractor shall submit a revised
programme to the Engineer in accordance with this Sub-Clause.
8.4.
Delays
In case of delay on the part of the Contractor, the Contractor shall be liable to pay
liquidated damages and any other compensation for the damages suffered by the
Employer as per clause 8.6 (Liquidated Damages). This is without prejudice to the
right of the Employer to rescind the Contract.
Failure or delay by the Employer or the Engineer, to hand over to the Contractor the
Site necessary for execution of Works, or any part of the Works or to give necessary
notice to commence the works, or to provide necessary Drawings or instructions or
clarifications or to supply any material, plant or machinery, which under the Contract
is the responsibility of the Employer shall in no way affect or vitiate the Contract or
alter the character thereof; or entitle the Contractor to damages or compensation
thereof but in any such case, the Engineer shall extend the time period for the
completion of the Contract as in his opinion is / are reasonable.
8.5.
Extension of Time for Completion
8.5.1.
Extension of time
The Contractor may apply for an extension of the Time for Completion, if the
Work is or will be delayed either before or after the Time for Completion by
any of the following causes:
a. "Force Majeure" referred to in Clause 19
b. The Contractor's work held up for not being given possession of or
access to the Site in accordance with the Contract
c. Instruction of the Engineer to suspend the Works and the Contractor
not being in default as to reasons of suspension.
d. Acts or omissions of other Designated Contractors in executing, work
not forming part of this Contract and on whose performance, the
performance of the Contractor necessarily depends.
e. Any act of prevention or Breach of Contract by the Employer and not
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Part – (B) – Conditions of Contract
mentioned in this Clause
Any order of Court restraining the performance of the Contract in full
or in any part thereof
g. Any other event or occurrence which, according to the Employer is
not due to the Contractor's failure or fault, and is beyond his control
without Employer being responsible for the same.
h. An Employer's Variation
f.
However, the Contractor shall not be entitled to any extension of time where
the instructions or acts of the Employer or the Engineer are necessitated by
or intended to cure any default of or breach of Contract by the Contractor or
where any delay is due to
i.
ii.
iii.
iv.
the failure of Subcontractor to commence or to carry out work in due
time,
non-availability, or shortage of Contractor's equipment, labour, utility
services, Plant and Materials,
Inclement weather conditions, and
the Contractor not fulfilling his obligations under Clause 5.1.
If the Contractor considers himself to be entitled to an extension of time for
Completion, he shall give notice to the Engineer of such intention as soon as
Possible and in any event within 28 days of the start of the event giving rise
to the delay and full and final supporting details of his application within 21
days of the last day of delay, together with any notice required by the
Contract and relevant to such Clause.
The Engineer shall proceed in accordance with the Conditions of the Contract
to agree or determine either prospectively or retrospectively such extension
of the Time for Completion as may be due. The Engineer shall notify the
Contractor accordingly. The extension of time including that of key date shall
not entitle the Contractor to retain the advance.
8.6.
Rate of Progress
The whole of the materials plant and labour to be provided by the Contractor under
Clause 5 hereof and the mode, manner and speed of execution and maintenance of
the Works are to be of a kind and conducted in a manner to the satisfaction of the
Engineer. Should the rate of progress of the Works or any part thereof be at any time
in the opinion of the Engineer too slow to ensure the completion of the Works by the
prescribed time or extended time for completion the Engineer shall so notify the
Contractor in writing and the Contractor shall thereupon take such steps as the
Contractor may think necessary and the Engineer may approve to expedite progress
so as to complete the Works by the prescribed time or extended time for completion.
The Employer shall not bear any extra cost that may be incurred by the Contractor in
this regard. Any additional cost incurred by the Engineer or Employer due to
extended hours of work shall be borne by the contractor.
All work at night shall be carried out without unreasonable noise and disturbance.
The contractor shall indemnify the Employer from and against any liability for
damages on account of noise or other disturbance created while or in carrying out
the work and from and against all claims, demands, proceedings, costs,
charges and expenses whatsoever in regard or in relation to such liability.
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Part – (B) – Conditions of Contract
If any steps taken by the Contractor in meeting his obligations under this Clause
cause the Employer to incur additional costs, such costs shall be recoverable from
the Contractor by the Employer and shall be deducted by the Employer from any sum
due, or to become due, to the Contractor.
8.7.
Liquidated Damages
If the Contractor fails to complete the works within the period of completion specified
in Form of Tender, and the Employer certifies in writing that in his opinion the same
ought, reasonably so, to have been completed, the Contractor shall pay or allow to
the Employer a sum calculated at the rate stated in the Form of Tender as agreed
Liquidated damages (not as a penalty) for the period during which the said work, shall
so remain or have remained incomplete. The Employer may deduct such damages
from any monies otherwise payable to the Contractor under this Contract.
The total amount of liquidated damages in respect of the Works in all stages shall,
however, not exceed the limit of liquidated damages stated in the Form of Tender.
The Tenderers are required to submit with the Tender a preliminary Bar Chart / Pert
Chart showing activities with corresponding resource allocation and time planned for
various activities to achieve a coordinated completion as per the specified completion
period, taking into account all local weather, site and other, prevailing conditions. The
progress of work will be constantly monitored by the Employer and The Engineer.
Time is the essence of the contract and the project is time bound.
On award of work, the successful Tenderer, within 30 (thirty) days, shall in
consultation with the Employer and Engineer produce a detailed and final CPM
Working Programme indicating physical progress of work on a weekly basis. Upon
acceptance of the CPM Working Programme, by the Employer and Engineer the
successful Tenderer shall strive and maintain the planned progress most diligently.
The payment or deduction of such damages shall not relieve the Contractor from his
obligations to complete the Works or from any other of his duties, obligations or
responsibilities under the Contract.
The Contractor shall use and continue to use his best endeavours to avoid or reduce
further delay to the Works, or any relevant Stages.
At any time after the Employer has become entitled to liquidated damages, the
Engineer may give notice to the Contractor, requiring the Contractor to complete the
Works within a specified reasonable time. Such action shall not Prejudice the
Employer’s Entitlement to recovery of liquidated damages, under this Clause and to
terminate under Clause 15.2
The decision of the Engineer as to the compensation payable by the Contractor under
this Clause shall be final and binding.
If on the expiry of agreed contract period, the work remains incomplete, liquidated
damages (not as penalty) will be imposed on the Contractor as stipulated in the first
part of this condition.
Beyond the stipulated period / extended period of completion, the contractor shall,
without prejudice to any other right, the contractor shall be liable to pay compensation
at 2% per month of delay to be computed on daily basis for having stipulated time of
completion more than 6 months. The total amount of compensation for delay to be
paid under this condition shall not exceed 10% of the tendered value of the work.
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9.
Part – (B) – Conditions of Contract
TESTS ON COMPLETION
9.1.
Contractor’s Obligations:
The Contractor shall carry out the Tests on Completion in accordance with this
Clause and Clause 7.4 [Testing], after providing the documents in accordance with
Clause 5.1 [Contractor’s General Obligations].
The Contractor shall give to the Engineer not less than 21 days’ notice of the date
after which the Contractor will be ready to carry out each of the Tests on Completion.
Unless otherwise agreed, Tests on Completion shall be carried out within 14 days
after this date, on such day or days as the Engineer shall instruct.
9.2.
Delayed Tests:
If the Tests on Completion are being unduly delayed by the Employer, Clause 7.4
[Testing] and/or Clause 10.3 [Interference with Tests on Completion] shall be
applicable.
If the Tests on Completion are being unduly delayed by the Contractor, the Engineer
may by notice require the Contractor to carry out the Tests within 21 days after
receiving the notice. The Contractor shall carry out the Tests on such day or days
within that period as the Contractor may fix and of which he shall give notice to the
Engineer.
If the Contractor fails to carry out the Tests on Completion within the period of 21
days, the Employer’s Representative may proceed with the Tests at the risk and cost
of the Contractor. The Tests on Completion shall then be deemed to have been
carried out in the presence of the Contractor and the results of the Tests shall be
accepted as accurate.
9.3.
Retesting
If the Works, or a Section, fail to pass the Tests on Completion, Clause 7.5
[Rejection] shall apply, and the Engineer or the Contractor may require the failed
Tests, and Tests on Completion on any related work, to be repeated under the same
terms and conditions.
9.4.
Failure to Pass Tests on Completion
If the Works, or a Section, fail to pass the Tests on Completion repeated under
Clause 9.3 [Retesting], the Engineer shall be entitled to:
a. order further repetition of Tests on Completion under Clause 9.3(Retesting);
b. if the failure deprives the Employer of substantially the whole benefit of the
Works or Section, reject the Works or Section (as the case may be), in which
event the Employer shall have the same remedies as are provided in Clause
11.4 [Failure to Remedy Defects]; or
c. issue a Taking-Over Certificate, if the Employer so requests.
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10.
Part – (B) – Conditions of Contract
PRACTICAL COMPLETION and PRACTICAL COMPLETION CERTIFICATE
10.1.
Practical Completion of the Works and Sections
10.1.1.
The Contractor shall complete the whole of the Works, and each
Section (if any), within the Time for Completion for the Works or
Section (as the case may be), including:
10.1.2.
Achieving the passing of the Tests on Completion, and
10.1.3.
Completing all work which is stated in the Contract as being
required for the Works or Section to be considered to be completed
for the purposes of Practical Completion.
10.1.4.
As soon as, in the opinion of the Employer’s Representative / the
Employer / the Engineer, the Works/Plant/Equipment shall have
been completed and shall have satisfactorily passed any final test
that may be prescribed by the Contract, the Engineer shall issue a
Practical Certificate of Completion in respect of the
Works/Plant/Equipment and the Defects liability period shall
commence from the date of such certificate.
10.1.5.
Provided that a Practical Completion Certificate given in accordance
with the foregoing provisions of any part of the Works occupied and
used as aforesaid shall not be deemed to certify completion of any
ground or surfaces requiring reinstatement unless such certificate
shall expressly so state.
10.1.6.
The Contractor may apply by notice to the Employer’s
Representative / the Employer / the Engineer for a Practical
Completion Certificate not earlier than 14 days before the Works
will, in the Contractor’s opinion, be complete and ready for Practical
Completion. The Employer’s Representative / the Employer / the
Engineer shall, within 28 days after receiving the Contractor’s
application:
Issue the Practical Completion Certificate to the Contractor, stating the date
on which the Works or Section were completed in accordance with the
Contract, except for any minor outstanding work and defects which will not
substantially affect the use of the Works or Section for their intended
purpose (either until or whilst this work is completed and these defects are
remedied).
or
Reject the application, giving reasons and specifying the work required to be
done by the Contractor to enable the Practical Completion Certificate to be
issued. The Contractor shall then complete this work before issuing a further
notice.
10.1.7.
If at any time or times before Practical completion of the work the
Employer with the consent of the Contractor shall take possession
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of any part or parts of the same as may be needed by the the
Employer on any exigencies then notwithstanding anything
expressed or implied elsewhere in this Contract. Such part or parts
shall not be deemed to be practically complete. Practical completion
of such part or parts shall be considered for the purpose of Practical
Completion only and all provisions under this contract shall be
complied with till the entire work is completed and Employer’s
Representative / the Employer / the Engineer’s Certificate issued to
that effect.
10.2.
Practical Completion of Parts of the Works
The Engineer may, at the sole discretion of the Employer, issue a Practical
Completion Certificate for any part of the Permanent Works.
The Employer shall not use any part of the Works (other than as a temporary
measure which is either specified in the Contract or agreed by both Parties) unless
and until the Engineer has issued a Practical Completion Certificate for this part.
However, if the Employer does use any part of the Works before the Practical
Completion Certificate is issued:
a. the part which is used shall be deemed to have been taken over as from the
date on which it is used,
b. the Contractor shall cease to be liable for the care of such part as from this
date, when responsibility shall pass to the Employer, and
c. if requested by the Contractor, the Engineer shall issue a Practical
Completion Certificate for this part.
After the Engineer has issued a Practical Completion Certificate for a part of the
Works, the Contractor shall be given the earliest opportunity to take such steps as
may be necessary to carry out any outstanding Tests on Completion. The Contractor
shall carry out these Tests on Completion as soon as practicable before the expiry
date of the relevant Defects Liability Period.
If the Contractor incurs Cost as a result of the Employer Practical Completion and/or
using a part of the Works, other than such use as is specified in the Contract or
agreed by the Contractor, the Contractor shall (i) give notice to the Engineer and (ii)
be entitled subject to Clause 20.1 [Contractor’s Claims] to payment of any such Cost
plus reasonable profit, which shall be included in the Contract Sum. After receiving
this notice, the Engineer shall proceed in accordance with Clause 4.4
[Determinations] to agree or determine this Cost and profit.
If a Practical Completion Certificate has been issued for a part of the Works (other
than a Section), the delay damages thereafter for completion of the remaining of the
Works shall be reduced. Similarly, the delay damages for the remaining of the
Section (if any) in which this part is included shall also be reduced. For any period of
delay after the date stated in this Practical Completion Certificate, the proportional
reduction in these delay damages shall be calculated as the proportion which the
value of the part so certified bears to the value of the Works or Section (as the case
may be) as a whole. The Engineer shall proceed in accordance with Clause 4.4
[Determinations] to agree or determine these proportions. The provisions of this
paragraph shall only apply to the daily rate of delay damages under Clause 8.7
[Delay Damages], and shall not affect the maximum amount of these damages.
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10.3.
Part – (B) – Conditions of Contract
Interference with Tests on Completion
If the Contractor is prevented, for more than 14 days, from carrying out the Tests on
Completion by a cause for which the Employer is responsible, the Employer shall be
deemed to have taken over the Works or Section (as the case may be) on the date
when the Tests on Completion would otherwise have been completed.
10.4.
Surfaces Requiring Reinstatement
Except as otherwise stated in a Practical Completion Certificate, a certificate for a
Section or part of the Works shall not be deemed to certify completion of any ground
or other surfaces requiring reinstatement.
11.
DEFECTS LIABILITY
i. When in the opinion of The Employer, "Practical Completion" of the Works is
achieved, it shall forthwith issue a certificate to that effect and "Practical
Completion" of Works shall be deemed for all the purposes of this Contract to have
taken place on the day stated in such certificate.
ii. The Defects Liability Period shall be a period of 730 days (Seven Thirty
Days) commencing upon the Date of Issue of Practical Completion
Certificate.
iii. In case any defects in the work due to bad materials and/or equipment, and/or bad
workmanship develop in the work before the expiry of the Defects Liability Period,
the Contractor, on notification by The Employer, shall rectify or remedy the defects
at their own cost and shall make their own arrangements to provide materials
and/or equipment, labour, and any other appliances required in this regard. In
case, even on due notification by The Employer, the Contractor fails to rectify or
remedy the defects, The Employer shall have the right to get this done and recover
the cost incurred by deductions from any amounts due to the Contractor including
invoking the Retention Money Bank Guarantee, in case this cost is within the value
of the retention amount, and if not, the Contractor shall be liable to pay to The
Employer the balance amount.
iv. The Employer shall be entitled to an extension of the Defects Liability Period for
the Works or a Section if and to the extent that the Works, Section or a major item
of Plant (as the case may be, and after Practical Completion) cannot be used for
the purposes for which they are intended by reason of a defect or damage.
v. If the defect or damage cannot be remedied expeditiously on the Site and the
Employer gives consent, the Contractor may remove from the Site for the
purposes of repair such items of Plant as are defective or damaged. This consent
may require The Contractor to increase the amount of the Retention by the full
replacement cost of these items, or to provide other appropriate security.
11.1.
Completion of Outstanding Work and Remedying Defects
In order that the Works and Contractor’s Documents, and each Section, shall be in
the condition required by the Contract (fair wear and tear excepted) by the expiry date
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Part – (B) – Conditions of Contract
of the relevant Defects Liability Period or as soon as practicable thereafter, the
Contractor shall:
1. complete any work which is outstanding on the date stated in a Practical
Completion Certificate, within such reasonable time as is instructed by the
Engineer, and
2. Execute all work required to remedy defects or damage, as may be notified
by (or on behalf of) the Employer on or before the expiry date of the Defects
Liability Period for the Works or Section (as the case may be).
11.2.
Cost of Remedying Defects
All work referred to in Clause 11.1 [Completion of Outstanding Work and Remedying
Defects] shall be executed at the risk and cost of the Contractor, if and to the extent
that the work is attributable to:
1. any design for which the Contractor is responsible,
2. Plant, Materials or workmanship not being in accordance with the Contract,
or
3. failure by the Contractor to comply with any other obligation.
11.3.
Extension of Defects Liability Period
The Employer shall be entitled to an extension of the Defects Liability Period for the
Works or a Section if and to the extent that the Works, Section or a major item of
Plant (as the case may be, and after Practical Completion) cannot be used for the
purposes for which they are intended by reason of a defect or damage.
11.4.
Failure to Remedy Defects
In case any defects in the work due to bad materials and/or equipment, and/or bad
workmanship develop in the work before the expiry of the Defects Liability Period, the
Contractor, on notification by the Employer, shall rectify or remedy the defects at their
own cost and shall make their own arrangements to provide materials and/or
equipment, labour, and any other appliances required in this regard. In case, even on
due notification by the Employer, the Contract or fails to rectify or remedy the defects,
the Employer shall have the right to get this done and recover the cost incurred by
deductions from any amounts due to the Contractor including invoking the Retention
Money Bank Guarantee, in case this cost is within the value of the retention amount,
and if not, the Contractor shall be liable to pay to the Employer the balance amount.
11.5.
Removal of Defective Work
If the defect or damage cannot be remedied expeditiously on the Site and the
employer gives consent, The Contractor may remove from the Site for the purposes
of repair such items of Plant as are defective or damaged. This consent may require
The Contractor to increase the amount of the Retention by the full replacement cost
of these items, or to provide other appropriate security.
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11.6.
Part – (B) – Conditions of Contract
Further Tests
If the work of remedying of any defect or damage may affect the performance of the
Works, the Engineer may require the repetition of any of the tests described in the
Contract. The requirement shall be made by notice within 28 days after the defect or
damage is remedied.
11.7.
Right of Access
Until the Practical Completion Certificate has been issued, the Contractor shall have
such right of access to the Works as is reasonably required in order to comply with
this Clause, except as may be inconsistent with the Employer’s reasonable security
restrictions.
11.8.
Contractor to Search
The Contractor shall, if required by the Engineer, search for the cause of any defect,
under the direction of the Engineer. Unless the defect is to be remedied at the cost of
the Contractor under Clause 11.2 [Cost of Remedying Defects], the Cost of the
search plus reasonable profit shall be agreed or determined by the Engineer in
accordance with Clause 4.4 [Determinations] and shall be included in the Contract
Sum.
11.9.
Unfulfilled Obligations
After the completion of the defects liability period, each Party shall remain liable for
the fulfilment of any obligation which remains unperformed at that time. For the
purposes of determining the nature and extent of unperformed obligations, the
Contract shall be deemed to remain in force.
11.10.
Clearance of Site
Upon receiving the Practical completion Certificate, The Contractor shall remove any
remaining Contractor’s Equipment, surplus material, wreckage, rubbish and
Temporary Works from the Site. If all these items have not been removed within 28
days after the issue of Practical Completion Certificate, the Employer may sell or
otherwise dispose of any remaining items. The Employer shall be entitled to be paid
the costs incurred in connection with, or attributable to, such sale or disposal and
restoring the Site.
12.
MEASUREMENT AND EVALUATION
12.1.
Works to be Measured
The Engineer shall, except as otherwise stated ascertain and determine by
measurement and / or design dimension, at the discussion of the Engineer, to
determine the value in accordance with the Contract of Work done in accordance
with the Contract. He shall, when he requires any part or parts of the Works to be
measured, give notice to the Employer and Contractor's authorized agent or
representative who shall forthwith attend or send a qualified agent to assist the
Engineer in making such measurement and shall furnish all particulars required by
either of them. Should the Contractor not attend or neglect or omit to send such
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agent, then the measurement made by the Engineer or approved by him, either of
which must be approved by the Employer, shall be taken to be the correct
measurement of the work.
For the purpose of measuring such permanent work as is to be measured by record
drawings, the Engineer shall prepare record drawings month by month of such work
and the Contractor as and when called upon to do so in writing shall, within 14 days,
attend to examine and agree such record drawings with the Engineer and shall sign
the same when so agreed and if the contractor does not so attend to examine and
agree any such record drawings, they shall be taken to be correct. If after
examination of such record drawings, the Contractor does not agree to the same or
does not sign the same as agreed, they shall nevertheless be taken to be correct
unless the Contractor shall, within 14 days of such examination, lodge with the
Engineer for decision by the Engineer and Employer, notice in writing of the respects
in which such record drawings are claimed by him to be incorrect.
12.2.
Method of Measurement
Where Works have to be measured for any purpose whatsoever, it shall be in
accordance with IS 1200 except where it is otherwise specifically indicate in the
respective item under Bill of Quantities or Technical Specification of material and
workmanship or conditions of Contract.
12.3.
Omissions
Whenever the omission of any work forms part (or all) of a Variation, the value of
which has not been agreed, if:
1. the Contractor will incur (or has incurred) cost which, if the work had not been
omitted, would have been deemed to be covered by a sum forming part of
the Accepted Contract Amount;
2. the omission of the work will result (or has resulted) in this sum not forming
part of the Contract Sum; and
3. this cost is not deemed to be included in the evaluation of any substituted
work;
13.
VARIATIONS AND ADJUSTMENTS
13.1.
Variations, Provisional and Prime Cost Sums
13.1.1.
The Employer’s Representative / The Employer / The Engineer may
issue instructions requiring a variation and sanction in writing any
variation made by the Contractor otherwise than pursuant to an
instruction of the Employer’s Representative/ The Employer / The
Engineer. No variation required by the Employer’s Representative/
The Employer / The Engineer or subsequently sanctioned by him
shall violate this contract.
13.1.2.
The term "Variation" as used in these conditions means the
alteration or modification of the design, quality or quantity of the
work as shown upon the Contract Drawings and desired by or
referred to in the Contract Bills, and includes the addition, omission
or substitution of any work, the alteration of the kind of standard of
any of the materials or goods to be used in the work, and the
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removal from the site of any works materials or goods executed or
brought thereon by the Contractor for the purposes of the work other
than work, materials or goods which are not in accordance with this
Contract.
13.1.3.
The Employer's Representative/ The Employer / The Engineer shall
issue instructions in regard to the expenditure of Prime Cost and
Provisional Sums included in the Contract Bills and of Prime Cost
Sums which arise as a result of instructions issued in regard to the
expenditure of Provisional Sums.
13.1.4.
All variations required by the Employer's Representative/ The
Employer / The Engineer or subsequently sanctioned by him in
writing and all work executed by The Contractor for which
Provisional Sums are included in the Contract Bills shall be
measured and valued by the Employer's Representative/ The
Employer / The Engineer who shall give to The Contractor an
opportunity of being present at the time of such measurement and of
taking such notes and measurements as the Contractor may
require. The valuation of variations and of work executed by the
Contractor for which a Provisional Sum is included in the Contract
Bills, (other than work for which a Tender has been accepted as
aforesaid) unless otherwise agreed shall be made in accordance
with the following rules.
13.1.5.
The price in the Contract Bills shall determine the valuation of work of
similar character executed under similar conditions as work priced
therein
13.1.6.
The said prices, where work is not of a similar character or
executed under similar conditions as aforesaid, shall be the basis of
prices for the same so far as may be reasonable, failing which a fair
valuation thereof shall be made.
13.1.7.
Where work cannot properly be measured and valued, the
Contractor shall be allowed day-work rates on the prices prevailing
when such work is carried out (unless otherwise provided in the
contract bills):
13.1.8.
At the rates if any, inserted by the Contractor in the Contract Bills or
in the form of Tender or
13.1.9.
When no such rates have been inserted, at the rates prevailing in
the market for material and labour and at the control rates for the
controlled materials including in all cases the rate for delivery of the
material at the work. Over and above the rate so worked out,
Contractor's overheads and profits at 15% (Fifteen Percent) shall be
added and rate finally arrived for consideration and approval of the
Employer.
13.1.10.
The above mentioned percentage to be added as overheads and
profits to the basic rate analysis for new items / additional items of
work shall include all site and office overheads and profits of the
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Contractor, all incidental and connected charges / expenditure,
whether direct or indirect, all applicable taxes, duties and levies and
similar liabilities which the Contractor may have to incur in the
process of completing the said item of work and the said overheads
and profits shall also include all infrastructure facilities, amenities,
transportation, supervision, insurance etc.
13.1.11.
Provided that in any case voucher specifying the time daily spent
upon the work (and if required by the Employer's Representative/
The Employer /The Engineer, the workmen's names) and the
materials employed shall be delivered for verification to the
Employer's Representative/ The Employer / The Engineer or his
authorized representative not later than the end of the week
following that in which the work has been executed.
13.1.12.
The prices in the Contract Bills shall determine the valuation of
items omitted, provided that if omissions substantially vary the
conditions under which any remaining items of work are carried out
the prices for such remaining items shall be valued under this
clause.
13.1.13.
Effect shall be given to the measurement and valuation of variations
under this condition in Interim Certificates and by adjustment of the
Contract Sum; and effect shall be given to the measurement and
valuation of work for which a Provisional Sum is included in the
Contract Bills under the said Clause in Interim Certificate and by
adjustment of the Contract Sum in accordance with the Conditions
of Contract.
13.1.14.
If upon written application being made to him by the Contractor, the
Employer's Representative / The Employer / The Engineer is of the
opinion that a variation or the execution by The Contractor of work
for which a Provisional Sum is included in the Contract Bills has
involved the Contract in direct loss and/or express for which he
would not be reimbursed by payment in respect of a valuation made
in accordance with the rules contained in this Clause of the
condition and if the said application is made within a reasonable
time of the loss or expense having been incurred then the
Employer's Representative/ The Employer / The Engineer shall
ascertain the amount of such loss or expense.
13.1.15.
Any amount from time to time so ascertained shall be added to the
Contract Sum, and if an Interim Certificate is issued after the date of
ascertainment any such amount shall be added to the amount which
would otherwise be stated as due in such certificate.
13.2.
Right to Vary
Variations may be initiated by the Engineer at any time prior to issuing the Practical
Completion Certificate for the Works, either by an instruction or by a request for the
Contractor to submit a proposal.
The Contractor shall execute and be bound by each Variation, unless the Contractor
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promptly gives notice to the Engineer stating (with supporting particulars) that the
Contractor cannot readily obtain the Goods required for the Variation. Upon receiving
this notice, the Engineer shall cancel, confirm or vary the instruction.
Each Variation may include:
a. changes to the quantities of any item of work included in the Contract
(however, such changes do not necessarily constitute a Variation),
b. changes to the quality and other characteristics of any item of work,
c. changes to the levels, positions and/or dimensions of any part of the Works,
d. omission of any work unless it is to be carried out by others,
e. any additional work, Plant, Materials or services necessary for the Permanent
Works, including any associated Tests on Completion, boreholes and other
testing and exploratory work, or
f. changes to the sequence or timing of the execution of the Works.
The Contractor shall not make any alteration and/or modification of the Permanent
Works, unless and until the Engineer instructs or approves a Variation.
13.3.
Variation Procedure
If the Engineer requests a proposal, prior to instructing a Variation, the Contractor
shall respond in writing as soon as practicable, either by giving reasons why he
cannot comply (if this is the case) or by submitting:
A. a description of the proposed work to be performed and a programme for its
execution,
B. the Contractor’s proposal for any necessary modifications to the programme
according to Clause 8.3 [Programme] and to the Time for Completion, and
C. the Contractor’s proposal for evaluation of the Variation.
The Engineer shall, as soon as practicable after receiving such proposal, respond
with approval, disapproval or comments. The Contractor shall not delay any work
whilst awaiting a response.
Each instruction to execute a Variation, with any requirements for the recording of
Costs, shall be issued by the Engineer to the Contractor, who shall acknowledge
receipt.
Each Variation shall be evaluated in accordance with Clause 12 [Measurement and
Evaluation], unless the Engineer instructs or approves otherwise in accordance with
this Clause.
13.4.
Payment in Applicable Currencies
If the Contract provides for payment of the Contract Sum in more than one currency,
then whenever an adjustment is agreed, approved or determined as stated above,
the amount payable in each of the applicable currencies shall be specified. For this
purpose, reference shall be made to the actual or expected currency proportions of
the Cost of the varied work, and to the proportions of various currencies specified for
payment of the Contract Sum.
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13.5.
Part – (B) – Conditions of Contract
Daywork
For work of a minor or incidental nature, the Engineer may instruct that a Variation
shall be executed on a daywork basis. The work shall then be valued in accordance
with the Daywork Schedule included in the Contract, and the following procedure
shall apply. If a Daywork Schedule is not included in the Contract, this Clause shall
not apply.
Before ordering Goods for the work, the Contractor shall submit quotations to the
Engineer. When applying for payment, the Contractor shall submit invoices, vouchers
and accounts or receipts for any Goods.
Except for any items for which the Daywork Schedule specifies that payment is not
due, the Contractor shall deliver each day to the Engineer accurate statements in
duplicate which shall include the following details of the resources used in executing
the previous day’s work:
a. the names, occupations and time of Contractor’s Representative,
b. the identification, type and time of Contractor’s Equipment and Temporary
Works, and
c. the quantities and types of Plant and Materials used.
One copy of each statement will, if correct, or when agreed, be signed by the
Engineer and returned to the Contractor. The Contractor shall then submit priced
statements of these resources to the Engineer, prior to their inclusion in the next
Statement under Clause 14.9 [Application for Interim Payment Certificates].
14.
CONTRACT SUM AND PAYMENT
14.1.
Item Rate Contract
14.1.1.
The Contract shall be an item rate contract. The Contractor shall be
paid for the actual quantity of work permanently installed and in
accordance with the contract documents, at the rates quoted by him
in the Contract Bills. Measurement shall be carried out as indicated in
the tender specification and as per schedule of quantities and prices.
14.1.2.
The schedule of Quantities given in Contract Bill are provisional and
are meant to indicate the scope of the work and to provide a uniform
basis for Tendering. The Owner reserves the right to increase or
decrease any of the quantities or to totally omit any item of work and
the Contractor shall not claim any extras or damages on these
grounds.
14.1.3.
Quantity variation will have no ceiling limit in respect of individual
items and individual quantities can vary to any extent. Such
variations shall not warrant any claims for modifications to already
quoted and accepted rates. However variation to the value of total
contract sum can vary to the extent up to Plus (+) or minus (-) 30%
without warranting change of rates. In case the total value of
contract varies in excess of the above limit, rates of only the variation
items and extra items will be re-considered based on actual impact.
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Chennai Metro Rail Ltd, – Contract No.
14.2.
i.
ii.
iii.
Part – (B) – Conditions of Contract
14.1.4.
Tax - The rates shall also be firm and shall not be subject to
variations in costs of any or all inputs, such as but not limited to,
materials, labor, exchange variations, labor conditions, fluctuations in
railway freights, or any conditions whatsoever. Tenderers must
include in their rates / various tax / Duty / Freight charges such as
Value Added Tax on works contract, excise duty, entry, octroi or
other tax, duty or, and any other tax and duty or other levy levied by
the Central Government or any State Government or local authority
except Service tax and cess, as applicable including any variation
during the Contract period and any agreed extension thereto. No
claim in respect of any variation or introduction taxes or duties or
levies as existing or future, shall be entertained by the Employer.
14.1.5.
The Service Tax and Cess shall be payable as extra at prevailing
rates. However Service Tax shall be paid by the contractor to the
concerned department on demand and it will be reimbursed to him by
the Employer after the contractor produces the original challan to
satisfy the employer that it has been actually and genuinely paid by
the contractor.
The Contract Sum
the Contract Sum shall be agreed or determined and be subject to
adjustments in accordance with the Contract;
the Contractor shall pay all taxes, duties and fees required to be paid by him
under the Contract, and the Contract Sum shall not be adjusted for any of
these costs
any quantities which may be set out in the Bill of Quantities or other Schedule
are estimated quantities and are not to be taken as the actual and correct
quantities:
a. of the Works which the Contractor is required to execute, or
b. for the purposes of Clause 12 [Measurement and Evaluation];
14.3.
Earnest Money Deposit (EMD):
Intending Tenderers shall pay as earnest money a sum of Rs 1,27,50,000 /-(Rupees
One Crore twenty seven lakhs fifty thousand only), produced as Demand Draft issued
by a Nationalised, or Scheduled Bank in India, drawn in favour of Chennai Metro
Rail Limited, Koyambedu, Chennai, Tamil Nadu, India, OR by Bank Guarantee as
per format in Appendix 1 on any Nationalized or Scheduled Bankers in India valid for
90 days from the last date of submission of Tender. A Tender which is not
accompanied by such EMD will not be considered. The Earnest Money will be
returned to the chosen Tenderer without any interest after submission of the First Bill.
E.M.D. of unsuccessful tenderers’ will be returned, without any interest after the
successful tenderer is awarded the work by the Employer and the tender documents
are returned.
60
Chennai Metro Rail Ltd, – Contract No.
14.4.
14.5.
Part – (B) – Conditions of Contract
Mobilisation Advance
14.4.1.
10% of tendered amount at 18% simple interest shall be paid as
Mobilisation advance (recoverable) payment in two equal
installments against Bank Guarantee
from a Nationalised /
Scheduled Bank in India valid till the completion of work. Payment
will be made after the receipt of Performance Bank Guarantee from
the Contractor.
14.4.2.
The first installment of Mobilisation Advance shall be paid within 14
days from the date of issue of letter of Acceptance subject to
furnishing required Bank guarantee valid till the completion of work
and also Performance Bank Guarantee. The second installment shall
be paid against required Bank Guarantee, on full mobilisation by the
Contractor at site to the satisfaction of the Employer / Engineer /
Employer’s representative.
14.4.3.
The value of the Bank Guarantee for Mobilisation Advance shall be
110% of the Mobilisation Advance.
14.4.4.
The recovery shall be commenced after 10% of work is complete and
the entire amount together with interest shall be recovered by the
time 80% of the work is complete.
Terms of Payment:
14.5.1.
All payments by the Employer under this contract will be made
through banking channel within the specified period based on
detailed measurements taken by the contractor in the presence of
Employer at the site and it will be checked and recorded by the
Employer or his representative. The Tender should be prepared by
the contractor based on the above measurement and the payment
will be made after the scrutiny and certification of the bill by the
Engineers.
14.5.2.
All such interim / progressive payments shall be regarded as
payment, by way of advances against final payment only, and shall
not preclude the requiring of bad, unsound, and imperfect or unskilled
work, to be rejected, removed, taken away and re-constructed or reerected. Any Certificate given by the Engineer relating to the work
done or materials delivered forming part of such payment, may be
modified or corrected by any subsequent such certificate(s), or by the
final certificate, and shall not by itself, be conclusive evidence that
any work or materials to which it relates is / are in accordance with
the Contract and Specification. Any such interim payment or any part
thereof shall not in any respect conclude, determine, or affect, in any
way the powers of the Engineer under the Contract or any of such
payments be treated as final settlement and adjustment of accounts,
or in any way vary, or affect the contract or right of the Employer
under the terms of the Contract.
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Chennai Metro Rail Ltd, – Contract No.
14.6.
14.7.
Part – (B) – Conditions of Contract
Payment of Part rates:
14.6.1.
Payment at part rates to the extent of work done against agreement
rates for certain items may be made in the running account bills at
the discretion of the Employer/ Engineer.
14.6.2.
The part rate to be allowed for an item shall be as assessed and
decided by the Employer/ Engineer, for the extent of work done, and
whether the item could be completed in all respects, as per
Specification, within the balance amount available.
14.6.3.
Reasons for allowing part rates shall be recorded in the bills against
the items under remarks column.
14.6.4.
Full rate shall be released, in subsequent bills on completion of the
item of work in all respects as per Specification after duly deducting
the Amount already paid as Part payment.
Price Adjustment
Price adjustment clause is applicable for this project.
14.7.1.
Price Adjustment Clause is eligible for this work subject to the
following.
Full Price Adjustment on all the Components including cement, steel, bitumen
and petroleum oil and lubricants (POL) shall be applicable, if the Contract
period is above 12 Months as per specified formula.
Price Adjustment on Cement, Steel, Bitumen and petroleum oil and lubricants
(POL) shall be applicable, if the contract period is 12 Months and below.
Price Adjustment will apply only when the rates exceed or decrease by 3% or
more as compared to the estimate rates (RBI Index Price).
The Price Adjustment shall be calculated only on the departmental estimated
cost of the work.
In respect of Bitumen and POL, it may be considered on ‘Pass Through’
basis with payment of actual rates / price at the rates charged by Indian Oil
Corporation.
All works for which price escalation / variation is contemplated must have
milestone fixed in physical terms and have a prefixed time-line for use of
inputs – clearly indicating the nature and quantum of eligible inputs to be
used for the work for the relevant period between two mile stones. Price
variation / escalation will be applicable for those quantities ‘actually’ used by
the contractor including additional quantities, if any, used or achieved ahead
of the time-line. However, if the contractor does a certain quantity of the work
in the third quarter which ought have been done in earlier quarter, price
variation / escalation will still be applicable on that quantity at the rates
applicable in the relevant quarter as per time-line or period of actual use
whichever is less.
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
Liquidated damages will be imposed on the contractor for the lapses /
shortfall in achieving the rates of progress as per existing schedule.
The Price Adjustment mechanism will cease to operate for value of work
executed beyond the agreement period. But agreement period shall include
the “actual period” for which the work was “suspended officially” and
extension of time permitted for any valid reasons such as, war, natural
calamities, like flood, earth quake and other risks arising out of acts of God
during the agreement period; work delayed due to the land acquisition
process; change in design, change in scope of work, etc., which is given in
writing by the Tender Calling Officer of the respective work.
Price Variation will be calculated once in a quarter (i) in respect of cement
and steel for the works with contractor period upto 12 months and (ii) in
respect of all components except bitumen and petroleum, Oil & Lubricants
(POL) for the works with contract period of more than 12 months, as per the
specified formula from the last date of submission of bid upto the end of
agreement period provided, if the agreement is signed within the minimum
specified time, failing which, the price variation will be applicable from the
date of agreement only, based on the wholesale price indexes of RBI. The
quarter would be reckoned with reference to the quarter of the calendar year
in which the last date on bid submission is fixed. In case of delayed
agreement, the quarter in which the agreement is signed will be reckoned for
the purpose of calculation of price adjustments.
Price Variation will be operated by the respective Executive Engineers.
The formula for adjustment of prices are
R = Value of work during the quarter under consideration.
14.7.2.
Adjustment of cement component.
Price adjustment for increase or decrease in the cost of cement procured by
the contractor shall be paid in accordance with the following formula if this
component is involved in the work executed during the quarter under
consideration.
Vc = 0.85 X Pc / 100 X R X (C1 – C0) / C0
V = Increase or decrease in the cost of work during the quarter under
consideration due to changes in the rates of cement.
Co = The RBI index for cement for the quarter during the date of
opening of tenders.
C1 = The RBI index for cement for the quarter under consideration.
Pc = Percentage for the cement component of the work.
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Chennai Metro Rail Ltd, – Contract No.
14.7.3.
Part – (B) – Conditions of Contract
Adjustment of Steel Component:
Price adjustment for increase or decrease in the cost of steel procured by the
contractor shall be paid in accordance with the following formula if this
component is involved in the work executed during the quarter under
consideration.
Vs = 0.85 X Ps / 100 X R X (S1 – S0) / S0
Vs = Increase or decrease in the cost of work during the quarter under
consideration due to changes in the rates of steel.
So = The RBI index for steel for the quarter during the date of opening of
tenders.
S1 = The RBI index for steel for the quarter under consideration.
Ps = Percentage for the steel component of the work.
14.7.4.
Adjustment of POL component (Fuel and lubricant)
Price adjustment for increase or decrease in the cost of POL procured by the
contractor shall be paid in accordance with the following formula if this
component is involved in the work executed during the quarter under
consideration.
V1 = 0.85 X P1 / 100 X R X (F1 – F0) / F0.
V1 = Increase or decrease in the cost of work during the quarter under
consideration due to changes in the rates of POL.
F0 = The average official retain price of High Speed Diesel (HSD) at the
existing consumer pumps of IOC on the day thirty days prior to the date of
opening of tenders.
F1 = The average official retail price of High Speed Diesel (HSD) at the
existing consumer pumps of IOC for the 15th day of the middle calendar
month for the quarter under consideration.
P1 = Percentage for the POL component of the work.
Note: For the application of this clause, the price of High Speed Diesel oil has
been chosen to represent fuel and lubricants group.
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Chennai Metro Rail Ltd, – Contract No.
14.7.5.
Part – (B) – Conditions of Contract
Adjustment for labour component
Price adjustment for increase or decrease in the cost due to labour shall be
paid in accordance with the following formula:
VL = 0.85 x Pl/100 x R x (Li - Lo)/Lo
VL = increase or decrease in the cost of work during the quarter under
consideration due to changes in rates for local labour.
Lo = the average consumer price index for industrial workers for -------------centre for the quarter proceeding the date of opening of Bids as published by
Labour Bureau, Ministry of Labour, Government of India.
Li =
The average consumer price index for industrial workers for --------------centre for the quarter under consideration as published by Labour Bureau,
Ministry of Labour, Government of India.
Pl = Percentage of labour component of the work.
14.7.6.
Adjustment of Bitumen component
Price adjustment for increase or decrease in the cost of bitumen shall be paid
in accordance with the following formula:
Vb = 0.85 x Pb/100 x R x (Bi - Bo)/Bo
Vb = Increase or decrease in the cost of work during the quarter under
consideration due to changes in the rate for bitumen.
Bo = The average official retail price of bitumen at the IOC depot at -----------on the day 30 days prior to the date of opening of Bids.
Bi = The average official retail price of bitumen at IOC depot at ---------------for the 15th day of the middle calendar month of the quarter under
consideration.
Pb = Percentage of bitumen component of the work.
14.7.7.
Adjustment for Plant and Machinery Spares component
Price adjustment for increase or decrease in the cost of plant and machinery
spares procured by the Contractor shall be paid in accordance with the
following formula:
Vp = 0.85 x Pp/100 x R x (Pi - Po)/Po
Vp = Increase or decrease in the cost of work during the quarter under
consideration due to changes in the rates for plant and machinery spares
Po = The all India average wholesale price index for heavy machinery and
parts for the quarter proceeding the date of opening of Bids as published by
the Ministry of Industrial Development, Government of India, New Delhi
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
Pi = The all India average wholesale price index for heavy machinery and
parts for the quarter under consideration as published by Ministry of Industrial
Development, New Delhi
Pp = Percentage of plant and machinery spares component of the work
Note: For the application of this clause, index of Heavy Machinery and
Parts has
been chosen to represent the Plant and Machinery Spares group.
14.7.8.
Adjustment of Local materials
Price adjustment for increase or decrease in cost of local materials other than
cement, steel, bitumen and POL procured by the contractor shall be paid in
accordance with the following formula:
Vm = Increase or decrease in the cost of work during the quarter under
consideration due to changes in rates for local materials other than cement,
steel, bitumen and POL.
Mo = The all India average wholesale price index (all commodities) for the
quarter proceeding the date of opening of Bids as published by the Ministry
of Industrial Development, Government of India, New Delhi.
Mi = The all India average wholesale price index (all commodities) for the
quarter under consideration as published by Ministry of Industrial
Development, Government of India, New Delhi.
Pm = Percentage of local material component (other than cement, steel,
bitumen and POL) of the work.
The following percentages will govern the price adjustment for the entire
contract:
1
Labour - Pl
25%
2
Cement - Pc
8%
3
Steel - Ps
4
Bitumen - Pb
0.05%
5
POL - Pf
1.95%
6
Plant & Machinery Spares
7
Other materials - Pm
8
Total
18%
- PP
7%
40%
100%
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Chennai Metro Rail Ltd, – Contract No.
14.8.
Part – (B) – Conditions of Contract
Interim Payments :
14.8.1.
Payment for works:
Progressive payment shall be made on monthly running account bills.
Engineer / Employer’s representative shall certify the running account bills
within 14 days from the date of submission of bills in complete shape by the
Contractor with all required enclosures, attachments etc.
The Employer shall make payment within 21 days from the date of
certification of bills by the Engineer / Employer’s Representative
Mobilization Advance will be recovered
Any other applicable deductions as per Conditions of Contract
Other applicable deductions.
14.9.
Final Bill:
14.9.1.
The Contractor shall submit his final bill for the works within three
months of completion of works. The bill shall be based only on
works as measured and at accepted agreement rates, including rates
for any additional or extra work, which might have been sanctioned
by the Employer. All deductions due under the Contract shall be
made.
14.9.2.
Final bill Payment:
a. Final bill shall be submitted by the Contractor, within three months
from the date of completion of all the works.
b. The Employer shall certify the final bill within two months of
submission in complete shape with all the required documents,
subject to finalisation of extra claims, if any.
c. The Employer shall make payment for the final bill within two months
from the date of certification of final bill by the Employer.
14.9.3.
Deduction in Final bill :
a. Applicable deductions as per Conditions of Contract.
b. Any money recoverable from the Contractor.
c. All interim payments effected.
14.10.
Delayed Payment:
No interest is payable on Delayed Payments.
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Chennai Metro Rail Ltd, – Contract No.
14.11.
Part – (B) – Conditions of Contract
Payment of Retention Money:
14.11.1.
Payment on Account and Retention:
The Contractor may, at intervals specified in the Tender, submit
claims for payment of advances on account of work done and
materials delivered at the Site in accordance with the Contract. Such
claims which shall be for a net amount not less than the minimum
named in the tender shall be computed as under
14.11.2.
Retention Amount:
In addition to the Performance Bond/Performance Guarantee in the
form of Bank Guarantee as required under Clause No.5.2 above, as
a further security for the due fulfillment of the contract by the
Contractor, 10% of the value of the work done will be deducted by
the Employer from each payment to be made to the Contractor until
the retention money amounts to a maximum of 5% of the contract
sum of the work.
Upon the Engineer’s certificate of completion of the works, 50% of
the retention money would be refunded and the balance after due
completion of all obligations under the contract agreement and
defects liability period. The amounts retained by the Employer shall
not bear interest.
14.12.
Secured Advance on Material at site:
Secured Advance against material delivered at site is not payable.
14.13.
Currencies of Payment
The Contract Sum shall be paid in the currency or currencies named in the
Conditions of the Contract.
15.
TERMINATION
15.1.
Notice to Correct:
If the Contractor fails to carry out any obligation under the Contract, the Engineer may
by notice require the Contractor to make good the failure and to remedy it within a
specified reasonable time.
15.2.
Termination of the contract :
If the Contractor shall become bankrupt or have a receiving order made against him
or shall present his petition in bankruptcy or shall make an arrangement with or
assignment in favour of his creditors or shall agree to carry out the Contract under a
committee of inspection of his creditors or (being a corporation) shall go into
liquidation (other than a voluntary liquidation for the purposes of amalgamation or
reconstruction) or if the Contractor shall assign the Contract without the consent in
writing of the Employer first obtained or shall have an execution levied on his goods
or if the Engineer / Employer’s Representative shall certify in writing to the Employer
that in his opinion the Contractor:-
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Part – (B) – Conditions of Contract
i. has abandoned the Contract or
ii. without reasonable excuse has failed to commence the Works or has
suspended the progress of the Works for 28 days after receiving from the
Engineer written notice to proceed or
iii. has failed to remove materials from the Site or to pull down and replace work
for 28 days after receiving from the Engineer written notice that the said
materials or work had been condemned and rejected by the Engineer under
these conditions or
iv. is not executing the Works in accordance with the Contract or is persistently
or flagrantly neglecting to carry out his obligations under the Contract or
v. has to the detriment of good workmanship or in defiance of the
Engineer's instructions to the contrary sub-let any part of the Contract then
the Employer may after 14 days notice in writing to the Contractor enter upon
the Site and the Works and expel the Contractor therefrom without thereby
voiding the Contract or releasing the Contractor from any of his obligations or
liabilities under the Contract or affecting the rights and powers conferred on
the Employer or the Engineer by the Contract and may himself complete the
Works or may employ any other contractor to complete the Works and the
Employer or such other contractor may use for such completion so much of
the Constructional Plant Temporary Works and materials which have
been deemed to become the property of the Employer under the provisions
of the Contract as he or they may think proper and the Employer may at any
time sell any of the said Constructional Plant Temporary Works and unused
materials and apply the proceeds of sale in or towards the satisfaction of any
sums due or which may become due to him from the Contractor under the
Contract.
15.3.
Valuation at Date of Termination:
As soon as may be practicable after any such entry and expulsion by the Employer,
the Engineer / Employer’s representative, with the prior written consent of the
Employer, shall fix and determine ex-parte or by or after reference to the parties or
after such investigation or enquiries as he may think fit to make or institute and shall
certify what amount (if any) had at the time of such entry and expulsion been
reasonably earned by or would reasonably accrue to the Contractor in respect of
work then actually done by him under the contract and what was the value of any
unused or partially used materials any Constructional Plant and Temporary Works
which have been deemed to become the property of the Employer under the
provisions of the Contract.
15.4.
Payment after Termination:
If the Employer shall enter and expel the Contractor under this Clause the Employer
shall not be liable to pay to the Contractor any money on account of the Contract until
the expiration of the Period of Maintenance and thereafter until the costs of
completion and maintenance damages for delay in completion (if any) and all other
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
expenses incurred by the Employer have been ascertained and the amount thereof
certified by the Engineer in consultation with the Employer. The Contractor shall then
be entitled to receive only such sum or sums (if any) as the Engineer may certify
would have been due to him upon due completion by him after deducting the said
amount. But if such amount shall exceed the sum which would have been payable
to the Contractor on due completion by him then the Contractor shall upon demand
pay to the Employer the amount of such excess and it shall be deemed a debt due by
the Contractor to the Employer and shall be recoverable accordingly.
15.5.
Employer’s Entitlement to Termination:
The Employer shall be entitled to terminate the Contract, at any time for the
Employer’s convenience, by giving notice of such termination to the Contractor. The
termination shall take effect 28 days after the later of the dates on which the
Contractor receives this notice or the Employer returns the Performance Security.
The Employer shall not terminate the Contract under this Clause in order to execute
the Works himself or to arrange for the Works to be executed by another contractor.
16.
SUSPENSION
16.1.
Suspension of Work
The Engineer / Employer’s Representative may at any time instruct the Contractor to
suspend progress of part or all of the Works. During suspension, the Contractor shall
protect, store and secure such part or whole of the Works against any deterioration,
loss or damage.
16.2.
Consequences of Suspension
The Contractor shall not be entitled to extra cost (if any), incurred by him, during the
period of suspension of Work, if such suspension is
a. provided for in the Contract, or
b. necessary for proper execution of Works or by reasons or weather condition
or by some default on the part of the Contractor, or
c.
necessary for the safety of Works or any part thereof or
d. necessary for the safety of adjoining public or other properly or safety of the
public or workmen or those who have to be at the site or
e. to ensure safety and to avoid disruption of traffic and utilities, as also to
permit fast repairs and restoration of any damaged utilities,
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
If suspension is ordered by the Engineer for reasons other than those mentioned in
clause 8.8 then the Contractor's entitlement are in the table below :
Suspension
Period
Extension
of time
Compensation for
the
suspension period
Remarks
No
No
Engineer may, at
his sole discretion,
give extension of
time in exceptional
circumstances
15-30 Days
YES
No
Extension of time
as considered
proper by the
Engineer
Above 30-90 Days
YES
No
Extension of time
as considered
proper by the
Engineer
Above 90 days if
Contractor
asks
for fore Closure.
YES
As per Daily rate of
wages for idle
labour/Employees
70% of the rate for
hire charges for idle
plant and machinery
(excluding cost of
fuel
and lubricants)
15% above all these
items to cover
overhead costs
Compensation as
assessed by the
Engineer on
submission of
documentary proof
by the Contractor to
Engineer’s
satisfaction.
Upto 14 days
16.3.
Payment for Plant and Materials in Event of Suspension
The Contractor shall be entitled to payment of the value (as at the date of
suspension) of Plant and/or Materials which have not been delivered to Site, if:
1. the work on Plant or delivery of Plant and/or Materials has been suspended
for more than 28 days, and
2. the Contractor has marked the Plant and/or Materials as the Employer’s
property in accordance with the Engineer’s instructions.
16.4.
Prolonged Suspension
If the progress of the works or any part thereof is suspended on the written order of
the Engineer for more than 90 days, the Contractor may serve a written notice on the
Engineer requiring permission within 28 days from the receipt thereof to proceed with
the Works or that part thereof in regard to which progress is suspended and if such
permission is not granted within that time, the Contractor, by a further written notice
so served, may (but is not bound to) elect to treat the suspension where it affects part
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
only of the Works as an omission of such part under Clause 12 hereof or where it
affects the whole works as an abandonment of the Contract by the
Employer/Engineer.
16.5.
Resumption of Work
After the permission or instruction to proceed is given, the Contractor and the
Engineer shall jointly examine the Works and the Plant and Materials affected by the
suspension. The Contractor shall make good any deterioration or defect in or loss of
the Works or Plant or Materials, which has occurred during the suspension.
17.
RISK AND RESPONSIBILITY
17.1.
Indemnities:
The Contractor shall indemnify and hold harmless the Employer, the Employer’s
Representative, and their respective agents, against and from all claims, damages,
losses and expenses (including legal fees and expenses) in respect of:
A. bodily injury, sickness, disease or death, of any person whatsoever arising
out of or in the course of or by reason of the Contractor’s design (if any), the
execution and completion of the Works and the remedying of any defects,
unless attributable to any negligence, willful act or breach of the Contract by
the Employer, the Employer’s Representative, or any of their respective
agents, and
B. damage to or loss of any property, real or personal (other than the Works), to
the extent that such damage or loss:
a. arises out of or in the course of or by reason of the Contractor’s
design (if any), the execution and completion of the Works and the
remedying of any defects, and
b. is attributable to any negligence, willful act or breach of the Contract
by the Contractor, the Contractor’s Representative, their respective
agents, or anyone directly or indirectly employed by any of them.
The Employer shall indemnify and hold harmless the Contractor, the Contractor’s
Representative, and their respective agents, against and from all claims, damages,
losses and expenses (including legal fees and expenses) in respect of (1) bodily
injury, sickness, disease or death, which is attributable to any negligence, willful act
or breach of the Contract by the Employer, the Employer’s Representative, or any of
their respective agents, and (2) the matters for which liability may be excluded from
insurance cover, as described in Clause 18.4 [Insurance Against Injury to Persons
and Damage to Property].
17.2.
Contractor’s Care of the Works:
From the commencement to the completion of the Works/Plant/Equipment, the
Contractor shall take full responsibility for the care thereof and of Temporary Works
and Constructional Plant and in case any damage, loss or injury shall occur to the
Works/Plant/Equipment or to any part thereof or to any Temporary Works or
Constructional Plant from any cause whatsoever Contractor shall at his own cost,
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Part – (B) – Conditions of Contract
repair and make good the same so that at completion the Work/Plant/Equipment shall
be in good order and condition and in conformity in every respect with the
requirement of the Contract and the Engineer's instructions.
The Contractor also assumes all risks, hazards and conditions in connection with the
performance of the Contract. If the performance of the contract involves a greater
expenditure than the Contractor anticipated, no allowance will be made on account
thereof, and the Contractor shall nevertheless complete the work in accordance with
the terms of the contract.
The Contractor will be responsible for loss or damage to his own / or Subcontractor’s
own equipment or materials which will not form part of the completed project.
17.3.
Employer’s Risks:
The risks referred to in Clause 17.4 below are:
A. war, hostilities (whether war be declared or not), invasion, act of foreign
enemies,
B. rebellion, terrorism, revolution, insurrection, military or usurped power, or civil
war, within the Country,
C. riot, commotion or disorder within the Country by persons other than the
Contractor’s Representative and other employees of the Contractor and
Subcontractors,
D. munitions of war, explosive materials, ionising radiation or contamination by
radio-activity, within the Country, except as may be attributable to the
Contractor’s use of such munitions, explosives, radiation or radio-activity,
E. pressure waves caused by aircraft or other aerial devices travelling at sonic
or supersonic speeds,
F. use or occupation by the Employer of any part of the Permanent Works,
except as may be specified in the Contract,
G. design of any part of the Works by the Employer’s Representative or by
others for whom the Employer is responsible, and
H. any operation of the forces of nature which is Unforeseeable or against which
an experienced contractor could not reasonably have been expected to have
taken adequate preventative precautions.
17.4.
Consequences of Employer’s Risks:
If and to the extent that any of the risks listed in Clause 17.3 above results in loss or
damage to the Works, Goods or Contractor’s Documents, the Contractor shall
promptly give notice to the Engineer and shall rectify this loss or damage to the extent
required by the Engineer.
If the Contractor suffers delay and/or incurs Cost from rectifying this loss or damage,
the Contractor shall give a further notice to the Engineer and shall be entitled subject
to Clause 20.1 [Contractor’s Claims] to:
a. an extension of time for any such delay, if completion is or will be delayed,
b. Payment of any such Cost, which shall be included in the Contract Sum. In
the case of Clause 17.3 [Employer’s Risks], reasonable profit on the Cost
shall also be included.
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17.5.
Part – (B) – Conditions of Contract
Intellectual and Industrial Property Rights:
In this Clause, “infringement” means an infringement (or alleged
infringement) of any patent, registered design, copyright, trademark, trade
name, trade secret or other intellectual or industrial property right relating to
the Works; and “claim” means a claim (or proceedings pursuing a claim)
alleging an infringement.
Whenever a Party does not give notice to the other Party of any claim within
28 days of receiving the claim, the first Party shall be deemed to have waived
any right to indemnity under this Clause.
The Employer shall indemnify and hold the Contractor harmless against and
from any claim alleging an infringement which is or was:
17.5.1.
an unavoidable result of the Contractor’s compliance with the
Contract, or
17.5.2.
a result of any Works being used by the Employer:
for a purpose other than that indicated by, or reasonably to be inferred from,
the Contract, or in conjunction with anything not supplied by the Contractor,
unless such use was disclosed to the Contractor prior to the Base Date or is
stated in the Contract.
17.6.
Limitation of Liability
Neither Party shall be liable to the other Party for loss of use of any Works,
loss of profit, loss of any contract or for any indirect or consequential loss or
damage which may be suffered by the other Party in connection with the
Contract, other than under Clause 16.3 [Payment on Termination] and
Clause 17.1 [Indemnities].
The total liability of the Contractor to the Employer, under or in connection
with the Contract other than under Clause 5.22 [Electricity, Water], Clause
17.1 [Indemnities] and Clause 17.5 [Intellectual and Industrial Property
Rights], shall not exceed the sum stated in the Particular Conditions or (if a
sum is not so stated) the Accepted Contract Amount.
This Clause shall not limit liability in any case of fraud, deliberate default or
reckless misconduct by the defaulting Party.
18.
INSURANCE
18.1.
General Requirements for Insurances:
18.1.1.
It is the Contractor’s responsibility, to take insurance for the work,
workmen, and third party liability, and indemnify the Employer, from
all claims, arising out of this Contract. the Employer will arrange for
insurance only after Practical Completion of the Project from the
Contractor. The Contractor has to allow for all risks in his Tender
rates and no compensation on any account will be paid by the
Employer. Force Majeure will only permit time extension within his
Tender rates for contract performance as may be approved by the
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Employer.
18.1.2.
The Contractor shall be responsible for all injury or damage to
persons, animals or things and for all damage to property which may
arise from any factor, omission, on the part of The Contractor, or any
Subcontractor or any of their employees.
18.1.3.
The liability under this clause shall cover also, inter alia, any damage
to structures, whether immediately adjacent to the works or
otherwise, any damage to roads, streets, footpaths, bridges, as well
as damage caused to the buildings and other structures and works,
forming the subject matter of this Contract. The Contractor shall also
be responsible for any damage caused to the buildings and other
structures and works, forming the subject matter of this Contract due
to rain, wind, frost, or other inclemency of weather.
18.1.4.
The Contractor shall indemnify and keep indemnified the Employer
and hold him harmless in respect of all and any loss and expenses
arising from any such injury, or damage to persons, or property as
aforesaid and also against any claim made in respect of injury or
damage, whether under any statute or otherwise, and also in respect
of any award or compensation or damage consequent upon such
claim.
18.1.5.
Contractor’s All Risk (CAR) Policy
The Contractor shall, at his own expense, effect and maintain till the
issue of the Virtual Completion Certificate under this Contract with
an Indian insurance company approved by the Employer, an All
Risks Policy of Insurance including earthquake risk, in the joint
names of the the Employer and The Contractor (the name of the
former being placed first in the policy) against all risk as per the
standard comprehensive All Risk Policy for the amount of Contract
and deposit such policy or policies with the Employer before
commencing the works.
Insurance Cover for Contractor’s All Risk shall include the following
but not limited to
●
●
●
●
●
●
●
●
●
●
●
●
50/50 Clause
72 Hours Clause
Free Automatic Reinstatement Clause upto 10% of SI
Loss Minimisation Expenses
Professional Fees
Waiver of Contribution Clause
Expediting cost including Air Freight and Express Freight upto
30% of net claim amount.
Amendment in Fire Fighting Endorsement wording.
Owner Surrounding Property upto 10% of the policy SI with
FLEXA Risk.
Debris Removal upto Rs.10 Cr.
Cover for offsite storage/fabrication
TPL with cross liability till expiry of the Extended Maintenance
Period AOA Limit is as 1% of the Contract price
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●
●
●
●
●
●
●
Part – (B) – Conditions of Contract
Escalation Cost upto 50% of the policy SI
Waiver of Subrogation Clause
Design Defect Cover as per DE3 wordings of Munich Re.
Extended Maintenance Cover for 24 Months.
Earthquake
STFI
Terrorism
18.1.6.
The Contractor shall reinstate all damage of every sort mentioned in
this Clause so as to deliver up the whole of the works complete and
perfect in every respect and so as to make good or otherwise satisfy
all claims for damage to property of third parties.
18.1.7.
THIRD PARTY INSURANCE
The Contractor shall also indemnify and keep indemnified the
Employer against all claims which may be made against the the
Employer, by any person, in respect of anything, which may arise in
respect of the works or in consequence thereof and shall, at his own
expense, effect and maintain until the Virtual Completion of the
Contract with an Insurance Company, approved by the Employer, a
policy of Insurance in the joint names of the the Employer and The
Contractor (name of the former being placed first in the policy)
against such risks and deposit such policy or policies before
commencement of the works. The minimum limit of the coverage
under the Policy shall be One percent (1%) of the Value of the Total
Contract Price for any one incident, with number of incidents
unlimited.
18.1.8.
The Contractor shall, also indemnify the Employer against all which
may be upon the Employer, whether under the workmen's
compensation Act or any other statute in force during the currency of
this Contract or at common Law, in respect of any employee of The
Contractor or of any Subcontractor and shall at his own expense,
effect and maintain until the Virtual Completion of the Contract with
an Indian Insurance Company approved by the Employer, a Policy of
Insurance, against such risks and deposit such policy or policies with
the Employer from time to time during the currency of this Contract.
18.1.9.
In default of the Contractor, insuring as provided above, the
Employer may insure him on the above lines and may deduct the
premiums paid from any moneys, due or which may become due to
The Contractor.
18.1.10.
The Contractor shall be responsible, for any liability which may not be
covered by the Insurance Policies referred to above, and also for all
other damages to any person, animal or things, or defects while
carrying out of this Contract, whatever may be the reasons due to
which the damage shall have been caused.
18.1.11.
The Contractor shall also indemnify and keep indemnified the
Employer, against all and any cost, charges or expenses, arising out
of any claim, or proceedings, relating to the works and also in respect
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of any award of damages or compensation arising there from.
18.1.12.
Without prejudice to the other rights of the Employer against the
Contractor in respect
of such default, the Employer shall be
entitled to deduct from any sums payable to the Contractor the
amount of any damages, compensation costs, charges, and other
expenses, paid by the Employer and which are payable by The
Contractor under this Clause.
18.1.13.
The Contractor shall upon settlement by the Insurer of any claim
made against the Insurer pursuant to a policy taken under this
clause, proceed with due diligence to rebuild or repair the works
destroyed or damaged. In this event, all the monies received from the
Insurer in respect of such damage shall be paid to The Contractor
and The Contractor shall not be entitled to any further payment in
respect of the expenditure incurred for rebuilding or repairing of the
materials or goods destroyed or damaged.
18.1.14.
The Contractors in case of re-building or reinstatement after fire shall
be entitled to such Extension of Time for completion as Employer’s
Representative / the Employer / the Engineer may deem fit, but shall,
however, not be entitled to reimbursement by the Employer of any
shortfall or deficiency in the amount finally paid by the Insurer in
settlement of any claim arising as set out herein.
18.1.15.
Without prejudice to his liability under this Clause, the Contractor
shall also cause all Direct Subcontractors to effect for their respective
portions of the works, similar policies of insurance in accordance with
the provisions of this Clause and shall produce or cause to produce
to the Employer, such policies.
In the event of failure of the
subcontractor to take out such a policy of insurance before
commencing the works at the site, The Contractor shall be
responsible for any claim or damage attributable to the said SubContractor.
18.2.
Injury to persons and property of Employer:
18.2.1.
The Contractor shall be liable for and shall indemnify the Employer
against any liability, loss, claim, or proceedings whatsoever arising
under any statute or at common law, in respect of personal injury to
or the death of any person, whomsoever, arising out of or in the
course of or caused by the carrying out of the works, unless such
claim arises due to any act, or neglect of the Employer, or of any
person for whom the Employer is responsible.
18.2.2.
The Contractor shall be liable for and shall indemnify the Employer
against any expense, liability, loss, claim, or proceedings, in respect
of any injury, or damage, whatsoever, to any property, movable or
immovable, in so far as, such injury or damage arises out of ,or in the
course of , or by reason of, the carrying out of the works, and
provided always that the same is due to any negligence, omission, or
default of The Contractor, his servants or agents or of any
Subcontractor, his servant or agent.
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18.3.
Part – (B) – Conditions of Contract
Insurance for Works and Contractor’s Equipment:
18.3.1.
The Contractor shall in the joint names of the Employer and the
Contractor , insure against loss or damage by fire, storm, tempest,
lightning, flood, earthquake, aircraft or anything dropped there from,
aerial objects, riot, and civil commotion, for the full value thereof, all
work executed and all unfixed materials, and goods intended for,
delivered to, and placed on, or adjacent to the work, but excluding
temporary building plant, tools, and equipment, owned or hired by
The Contractor, or any Subcontractor, and shall ,keep such work,
materials, and goods, so insured until Virtual Completion of the
Project. Such insurances shall be with insurers approved by the
Employer / Consultant and The Contractor shall deposit with the
Employer/Consultant, the policy or policies and the receipts in
respect of premiums paid: and should The Contractor make default
in insuring or continuing to insure, as aforesaid, the Employer may
himself insure against any risk with respect of which the default shall
have occurred and deduct, a sum equivalent to the amount paid by
him in respect of premium from any monies due to, or to become due
to The Contractor.
18.3.2.
Provided always, that if The Contractor shall independently of his
obligations under this Contract, maintain a policy of Insurance which
covers (inter alia) the said work, materials, and goods, against the
aforesaid contingencies to the full value thereof, then, the
maintenance by The Contractor of such policy shall, if the Employer’s
interest is endorsed thereon, be a discharge of The Contractor's
obligation to insure in the joint names of the Employer and Contractor
and the production by The Contractor as and when may reasonably
be required by the Employer of a current Certificate of Insurance from
the company or firm which shall have issued the said policy, shall be
a discharge of The Contractor's obligation ,to deposit with the
Employer ,a policy or policies and the receipts in respect of premiums
paid.
18.3.3.
Upon settlement of any claim under the Insurances aforesaid, the
Contractor with due diligence shall restore, work damaged, replace,
or repair, unfixed materials, or goods, which have been destroyed or
injured, remove, or dispose of, any debris, and proceed with the
carrying out and completion of the work. All monies received from
such insurances, shall be paid to The Contractor, by installments,
under Certificates of Employer's Representative / the Employer / the
Engineer Issued, at the period of interim Certificates, named in the
Appendix to these Conditions. The Contractor shall not be entitled to
payment, in respect of the restoration of work damaged, the
replacement, and repair of any unfixed materials, or goods, and the
removal, and disposal of, debris, other than the monies received
under the said insurances.
18.3.4.
All works executed and all unfixed materials and goods intended for,
delivered to, and placed on or adjacent to the works (except
temporary buildings, plant, tools and equipment owned or hired by
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Part – (B) – Conditions of Contract
the Contractor or his Subcontractor), shall be at the sole risk of the
Contractor, as regards loss or damage by fire, storm, tempest,
lightning, flood, earthquake, aircraft or anything dropped there from,
aerial objects, riot, and civil commotion. If any loss or damage,
affecting the work, or any part thereof or any such unfixed materials
or goods, is occasioned by, any one or more of the said
contingencies, then:
18.3.5.
The occurrence of such loss or damage shall be disregarded, in
computing any amounts payable to the Contractor under or by virtue
of this Contract.
18.3.6.
The Contractor with due diligence shall restore work damaged,
replace or repair any unfixed materials or goods which have been
destroyed or injured, remove and dispose of any debris, and proceed
with carrying out and completion of the work. The restoration of work
damaged, the replacement and repair of unfixed materials, and
goods, and the removal and disposal of debris, shall be deemed to
be a variation required by the Consultant.
18.3.7.
The existing structure together with all the contents thereof and the
works, and all unfixed materials, and goods, intended for, delivered
to, and placed on, or adjacent to the works, (except temporary
buildings, plant, tools and equipment, owned or hired by The
Contractor, or any Subcontractor) shall be at the sole risk of the
Employer, as regards loss or damage by fire, storm, tempest,
lightning, flood, earthquake, aircraft or anything dropped there from,
aerial objects, riot, and civil commotion, and the Employer shall
maintain adequate Insurance, against that risk, if any loss or
damage, affecting the work, or any part thereof, or any such unfixed
materials, or goods, is occasioned, by any one or more of the said
contingencies, then :
18.3.8.
The occurrence of such loss or damage shall be disregarded, in
computing any amounts payable to The Contractor, under or by
virtue of this Contract.
If it is just and equitable so to do the employment of the Contractor, under
this Contract may within 28 days of the occurrence of such loss or damage
be determined at the option of either party, by notice by registered post, or
recorded delivery, from either party to the other. Within seven days of
receiving such notice ,(but not thereafter) either party may give to the other, a
written request to concur in the appointment of an Arbitrator under Clause of
these Conditions, in order that it may be determined whether such
determination will be just and equitable.
Upon the giving or receiving by the Employer of such a notice of
determination or where a reference to Arbitration is as aforesaid upon the
Arbitrator upholding the notice of determination,
If no notice of determination is served as aforesaid or where reference to
Arbitration is made as aforesaid if the Arbitrator decides against the notice of
determination then.
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Part – (B) – Conditions of Contract
18.3.9.
The Contractor with due diligence shall reinstate or make good such
loss or damage and proceed with the carrying out and completion of
the works.
18.3.10.
Employer’s Representative / The Employer / The Engineer may issue
instructions requiring Contractor to remove and dispose of any
debris; and
18.3.11.
The reinstatement and making good of such loss or damage and
(when required) the removal and disposal of debris, shall be deemed
to be a variation required by the Employer.
18.4.
Insurance against Injury to Persons and Damage to Property :
18.4.1.
Without Prejudice to his liability to indemnify the the Employer, under
Clause- of these Conditions, The Contractor shall maintain and shall
cause any Subcontractor to maintain:
18.4.2.
Such Insurances, as are necessary, to cover the liability of The
Contractor ,or as the case may be of such Subcontractor, in respect
of personal injuries or deaths arising out of or in the course of or
caused by the carrying out of the work; and
18.4.3.
Such insurances as may be specifically required by the Contract Bills
in respect of injury or damage to property, movable or immovable,
arising out of or in the course of, or by reason of, the carrying out of
the work, and caused by any negligence, omission, or default, of The
Contractor, his servants or agents or, as the case may be, of such
Sub- Contractor, his servants or agents.
18.4.4.
The Contractor shall produce or cause any Subcontractor to produce
for inspection, the relevant policy or policies of Insurance together
with the receipts, in respect of premiums paid under such policy or
policies, as and when required so by the Employer / Consultant,
provided always, that as and when may be reasonably required by
the Employer, the production by either The Contractor or any
Subcontractor, of a current Certificate of Insurance, from the
company or firm which shall have issued the policy or policies
aforesaid, shall be a good discharge of The Contractor's obligation to
produce or to cause the production of the policy or policies, and the
receipts in respect of premium paid.
18.4.5.
The Contractor shall maintain in the joint names of the Employer and
the Contractor, such Insurances, as may be required, in respect of
any expense, liability, loss, claim or proceedings which the Employer
may incur or sustain by reason of injury, or damage to property, real
or personal, arising out of, or in the course of, or by reason of ,the
carrying out of the work, and caused otherwise than by the
negligence, omission, or default of The Contractor, his servants or
agents or any Subcontractor, his servants or agents.
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18.5.
Part – (B) – Conditions of Contract
18.4.6.
Any such Insurance as is referred to, in the immediately preceding
paragraph shall be placed with insurers to be approved by the
Employer, and The Contractor shall have to deposit with the
Employer the policy or policies and the receipts in respect of
premiums paid for the scrutinizing of the the Employer.
18.4.7.
Should The Contractor or any Subcontractor make default in insuring
or in continuing to insure as provided in the above Clauses, the
Employer may himself insure against any risk with respect to which
the default shall have occurred, and may deduct a sum equivalent to
the amount paid in respect of premiums from any monies due to or
become due to The Contractor.
Insurance for Contractor’s Representative:
The Contractor shall effect and maintain insurance against liability for claims,
damages, losses and expenses (including legal fees and expenses) arising
from injury, sickness, disease or death of any person employed by the
Contractor or any other of the Contractor’s Representative.
The Employer and the Engineer shall also be indemnified under the policy of
insurance, except that this insurance may exclude losses and claims to the
extent that they arise from any act or neglect of the Employer or of the
Employer’s Representative.
The insurance shall be maintained in full force and effect during the whole
time that these Representative are assisting in the execution of the Works.
For a Subcontractor’s employees, the insurance may be effected by the
Subcontractor, but the Contractor shall be responsible for compliance with
this Clause.
19.
FORCE MAJEURE
19.1.
Definition of Force Majeure:
In this Clause, “Force Majeure” means an exceptional event or circumstance:
a. which is beyond a Party’s control,
b. which such Party could not reasonably have provided against before
entering into the Contract,
c.
which, having arisen, such Party could not reasonably have avoided or
overcome, and
d. which is not substantially attributable to the other Party.
Force Majeure may include, but is not limited to, exceptional events or circumstances
of the kind listed below, so long as conditions (a) to (d) above are satisfied:
i.
war, hostilities (whether war be declared or not), invasion, act of
foreign enemies,
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19.2.
Part – (B) – Conditions of Contract
ii.
rebellion, terrorism, revolution, insurrection, military or usurped
power, or civil war,
iii.
riot, commotion, disorder, strike or lockout by persons other than the
Contractor’s Representative and other employees of the Contractor
and Subcontractors,
iv.
munitions of war, explosive materials, ionizing radiation or
contamination by radioactivity, except as may be attributable to the
Contractor’s use of such munitions, explosives, radiation or
radioactivity, and
v.
natural catastrophes such as earthquake, hurricane, typhoon or
volcanic activity.
Notice of Force Majeure:
If a Party is or will be prevented from performing any of its obligations under
the Contract by Force Majeure, then it shall give notice to the other Party of
the event or circumstances constituting the Force Majeure and shall specify
the obligations, the performance of which is or will be prevented. The notice
shall be given within 14 days after the Party became aware, or should have
become aware, of the relevant event or circumstance constituting Force
Majeure.
The Party shall, having given notice, be excused performance of such
obligations for so long as such Force Majeure prevents it from performing
them.
Notwithstanding any other provision of this Clause, Force Majeure shall not
apply to obligations of either Party to make payments to the other Party under
the Contract.
19.3.
Duty to Minimise Delay:
Each Party shall at all times use all reasonable endeavours to minimise any
delay in the performance of the Contract as a result of Force Majeure. A
Party shall give notice to the other Party when it ceases to be affected by the
Force Majeure.
19.4.
Consequences of Force Majeure:
19.4.1.
If the Contractor is prevented from performing any of his obligations
under the Contract by Force Majeure of which notice has been given
under Clause 19.2 [Notice of Force Majeure], and suffers delay
and/or incurs Cost by reason of such
19.4.2.
Force Majeure, the Contractor shall be entitled subject to Clause 20.1
[Contractor’s Claims] to:
an extension of time for any such delay, if completion is or will be delayed,
under Conditions of this contract.
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if the event or circumstance is of the kind described in Clause 19.1 [Definition
of Force Majeure] and, in the case of subparagraphs (ii) to (iv), occurs in the
Country, payment of any such Cost.
19.5.
Force Majeure Affecting Subcontractor:
If any Subcontractor is entitled under any contract or agreement relating to
the Works to relief from force majeure on terms additional to or broader than
those specified in this Clause, such additional or broader force majeure
events or circumstances shall not excuse the Contractor’s non-performance
or entitle him to relief under this Clause.
19.6.
Optional Termination, Payment and Release:
If the execution of substantially all the Works in progress is prevented for a
continuous period of 84 days by reason of Force Majeure of which notice has
been given under Clause 19.2 [Notice of Force Majeure], or for multiple
periods which total more than 140 days due to the same notified Force
Majeure, then either Party may give to the other Party a notice of termination
of the Contract. In this event, the termination shall take effect 7 days after the
notice is given, and the Contractor shall proceed in accordance with the
Conditions of the contract
19.7.
19.6.1.
the amounts payable for any work carried out for which a price is
stated in the Contract;
19.6.2.
the Cost of Plant and Materials ordered for the Works which have
been delivered to the Contractor, or of which the Contractor is liable
to accept delivery: this Plant and Materials shall become the property
of (and be at the risk of) the Employer when paid for by the
Employer, and the Contractor shall place the same at the Employer’s
disposal;
19.6.3.
any other Cost or liability which in the circumstances was reasonably
incurred by the Contractor in the expectation of completing the
Works;
19.6.4.
the Cost of removal of Temporary Works and Contractor’s Equipment
from the Site and the return of these items to the Contractor’s works
in his country (or to any other destination at no greater cost);
19.6.5.
the Cost of repatriation of the Contractor’s staff and labour employed
wholly in connection with the Works at the date of termination.
Release from Performance under the Law:
Notwithstanding any other provision of this Clause, if any event or
circumstance outside the control of the Parties (including, but not limited to,
Force Majeure) arises which makes it impossible or unlawful for either or both
Parties to fulfill its or their contractual obligations or which, under the law
governing the Contract, entitles the Parties to be released from further
performance of the Contract, then upon notice by either Party to the other
Party of such event or circumstance:
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20.
Part – (B) – Conditions of Contract
19.7.1.
the Parties shall be discharged from further performance, without
prejudice to the rights of either Party in respect of any previous
breach of the Contract, and
19.7.2.
the sum payable by the Employer to the Contractor shall be the same
as would have been payable under Clause 19.6 [Optional
Termination, Payment and Release] if the Contract had been
terminated under Clause 19.6 (Optional Termination, Payment and
Release.)
CLAIMS, DISPUTES, CONCILIATION AND ARBITRATION
20.1.
Procedure for Claims:
If the Contractor intends to claim any additional payment under any clause of
these Conditions or otherwise, the Contractor shall give notice to the
Engineer as soon as possible and in any event, within 28 days of the start of
the event giving rise to the claim.
The Contractor shall keep such contemporary records as may be necessary
to substantiate any claim either on the Site or at any other location
acceptable to the Engineer. Without admitting the Employer's liability, the
Engineer shall on receipt of such notice, inspect such records and may
instruct the Contractor to keep further contemporary records. The Contractor
shall permit the Engineer to inspect all such records and shall (if instructed)
submit copies to the Engineer.
Within 28 days of such notice or such other time as may be agreed by the
Engineer, the Contractor shall send to the Engineer an account, giving
detailed particulars of the amount and basis of the claim. Where the event
giving rise to the claim has a continuing effect, such amount shall be
considered as interim. The Contractor shall then, at such intervals as the
Engineer may reasonable require, send further interim accounts giving the
accumulated amount of the claim and any further particulars. Where interim
accounts are sent to the Engineer, the Contractor shall send a final account
within 28 days of the end of the effects resulting from the event. If the
Contractor fails be complying with this clause, he shall not be entitled to claim
any additional payment.
20.2.
Payment for Claims
The Contractor shall be entitled to have included in any interim payment
certificate such amount for any claim as the Engineer considers due, after
taking approval from the Employer. If the particulars supplied are insufficient
to substantiate the whole of the claim the Contractor shall be entitled to
payment for such part of the claim as has been substantiated.
20.3.
No Legal Action Till Dispute Settlement Procedure is Exhausted
Any and all Disputes shall be settled in accordance with the provisions of
Clause 20. No action at law concerning or arising out of any Dispute shall be
commenced unless and until all applicable Dispute resolution procedures set
out in Clause 20 shall have been finally exhausted in relation to that Dispute
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or any Dispute out of which that Dispute shall have arisen with which it may
be or may have been connected.
20.4.
Notice of Dispute
A Dispute shall be deemed to arise when one party serves on the other party
a notice in writing (herein called a “Dispute of Notice”) stating the nature of
the Dispute provided that no such notice shall be served later than 28 days
after the completion of the Defects Liability Period.
20.5.
Two Stages for Dispute
Disputes shall be settled through two stages:
20.6.
20.5.1.
Conciliation procedures as established by “The Arbitration and
Conciliation Act-1996” (as amended from time to time) and in
accordance with this clause. In the event this procedure fails to
resolve the Dispute then:
20.5.2.
Arbitration procedures undertaken as provided by “The Arbitration
and Conciliation Act-1996”(as amended from time to time) and in
accordance with this Clause.
Conciliation
Within 60 days of receipt of Notice of Dispute, either party shall refer the
matter in Dispute to Conciliation. Conciliation proceedings shall be initiated
within 30 days of one party inviting the other in writing to Conciliation.
Conciliation shall commence when the other party accepts in writing this
invitation. If the invitation is not accepted then Conciliation shall not take
place. If the party initiating Conciliation does not receive a reply within 30
days from the date on which he sends the invitation he may elect to treat this
as a rejection of the invitation to conciliate and inform the other party
accordingly. The Conciliation shall be undertaken by one Conciliator selected
from a panel of Conciliators maintained by the Employer. The Conciliator
shall assist the parties to reach an amicable settlement in an independent
and impartial manner.
20.7.
Conciliation Procedure
The Employer shall maintain a panel of Conciliators, who shall be from
serving or retired Engineers of Government Departments or of Public Sector
Undertakings. Out of this panel a list of three Conciliators shall be sent to the
Contractor who shall choose one of them to act as Conciliator and conduct
Conciliation proceedings in accordance with "The Arbitration and Conciliation
Act - 1996” India.
There will be no objection if Conciliator so nominated is a serving employee
of CMRL who would be deputy level officer and above. The Employer and the
Contractor shall in good faith co-operate with the Conciliator and in particular,
shall endeavour to comply with requests by the Conciliator to submit written
materials, provide evidence and attend meetings. Each party may, on his
own initiative or at the invitation of the Conciliator, submit to the
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Conciliator suggestions for the settlements of the Dispute. When it appears to
the Conciliator that there exist elements of a settlement which may be
acceptable to the parties, he shall formulate the terms of a possible
settlement and submit them to the parties for their observations. After
receiving the observations of the parties, the Conciliator may reformulate the
terms of a possible settlement in the light of such observations. If the parties
reach agreement on a settlement of the dispute, they may draw up and sign a
written settlement agreement. If requested by the parties, the Conciliator may
draw up, or assist the parties in drawing up the settlement agreement.
When the parties sign the settlement agreement, it shall be final and binding
on the parties and persons claiming under them respectively.
The Conciliator shall authenticate the settlement agreement and furnish a
copy thereof to each of the parties. As far as possible the conciliation
proceedings should be completed within 60 days of the receipt of notice by
the Conciliator.
The parties shall not initiate, during the conciliation proceedings, any arbitral
or judicial proceedings in respect of a Dispute that is the subject matter of the
conciliation proceedings.
20.8.
Termination of Conciliation proceedings
The conciliation proceedings shall be terminated:
20.8.1.
by the signing of the settlement agreement by the parties on the date
of agreement; or
20.8.2.
by written declaration of the Conciliator, after consultation with the
parties to the effect further efforts at conciliation are no longer
justified, on the date of declaration; or
20.8.3.
by a written declaration of the parties to the Conciliator to the effect
that the conciliation proceedings are terminated, on the date of
declaration; or
20.8.4.
by a written declaration of a party to the other party and the
Conciliator, if appointed, to the effect that the conciliation
proceedings are terminated, on the date of declaration.
Upon termination of the conciliation proceedings, the Conciliator shall fix the
costs of the conciliation and give written notice thereof to the parties. The
costs shall be borne equally by the parties unless settlement agreement
provides for a different apportionment. All other expenses incurred by a party
shall be borne by that party.
20.9.
Arbitration
If the efforts to resolve all or any of the dispute through conciliation fails, then
such disputes or differences, whatsoever arising between the parties, arising
out of touching or relating to construction / manufacture, measuring operation
or effect of the contract or the breach thereof shall be referred to Arbitration in
accordance with the following provisions:
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20.9.1.
Part – (B) – Conditions of Contract
Matters to be arbitrated upon shall be referred to a sole Arbitrator if
the total value of the claims is up to Rs.10 million and to a panel of
three Arbitrators if total value of claims is more than Rs.10 million.
The Employer shall provide a panel of three Arbitrators which may
also include CMRL officers for the claims up to Rs.10 Million and a
panel of five Arbitrators which may also include CMRL officers for
claims of more than Rs.10 million. The Contractor shall have to
choose the sole Arbitrator from the panel of three and / or one
Arbitrator from the panel of five in case three Arbitrators are to be
appointed.
The Employer shall also choose one Arbitrator from this panel of five and the
two so chosen will choose the third Arbitrator from the panel only. The
Arbitrators shall be appointed within a period of 60 days from the date of
receipt of written notice/demand of appointment of Arbitrator from either
party.
Neither party shall be limited in the proceedings before such Arbitrators to the
evidence nor arguments put before the Engineer for the purpose of obtaining
his decision. No decision given by the Engineer in accordance with foregoing
provisions shall disqualify him from being called as a witness and giving
evidence before the Arbitrators on any matter, whatsoever, relevant to
Dispute or difference referred to Arbitrators. The arbitration proceedings shall
be held in Chennai only. The language of proceedings that of documents and
communication shall be English.
20.10.
20.9.2.
The Employer at the time of offering the panel of Arbitrator(s) to be
appointed as Arbitrator shall also supply the information with regards
to the qualifications of the said Arbitrator nominated in the panel
along with their professional experience, phone numbers and
addresses to the Contractor.
20.9.3.
The award of the sole Arbitrator or the award by majority of three
Arbitrators as the case may be shall be binding on all parties.
Interest on Arbitration Award
Where the arbitral award is for the payment of money, no interest shall be
payable on whole or any part of the money for any period, till the date on
which the award is made.
20.11.
Cost of Arbitration
The cost of arbitration shall be borne by the respective parties. The cost
shall, inter alia, include the fees of the Arbitrator(s) as per rates fixed by the
Employer from time to time.
20.12.
Jurisdiction of Courts
Where recourse to a Court is to be made respect of any matter, the Court at
Chennai shall have the exclusive jurisdiction to try all disputes between the
parties.
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20.13.
Part – (B) – Conditions of Contract
Suspension of Work on Account of Arbitration
The reference to Conciliation / Arbitration shall proceed notwithstanding that
the works shall not then be or be alleged to be complete, provided always
that the obligations of the Employer, Engineer and the Contractor shall not be
altered by reasons of arbitration being conducted during the progress of the
works. Neither party shall be entitled to suspend the work or part of the work
to which the dispute relates on account of arbitration and payments to the
Contractor shall continue to be made in terms of the Contract.
21.
CONDITIONS - GREEN BUILDING CONCEPT :
21.1.
Special Conditions and Guidelines to Contractor for maintaining a
Sustainable Site during construction.
The contractor shall to prevent erosion, plan for sedimentation collection
systems, drainage systems, and runoff diversion systems shall be in place
before the commencement of construction activity. A soil erosion and
sedimentation control plan should be prepared prior to construction and
should be applied effectively.
It is strongly recommended to design for Sedimentation basin of desired
capacities for rainwater catchments from the site during construction.
21.2.
Confine construction activity to pre-designated areas:
Barricade the areas where construction activities will be carried out so as to
protect the remainder of the site from harm/ damage. Proper construction
planning should be carried out to ensure minimum disruption to site. Pre
designated areas for storage of materials, vehicle access, etc., should be
planned.
It is also recommended to demarcate areas on the site plan to which the site
activities would be limited during construction by the contractor. The
demarcated area should be separated from the rest of the site through a
physical barrier.
21.3.
Proper implementation of staging and spill prevention plan:
21.4.
Staging areas:
Staging is dividing a construction area into two or more areas to minimize the
area of soil that will be exposed at any given time. Staging should be done to
separate undisturbed land from land disturbed by construction activity and
material storage. Measures shall be followed for collecting drainage water
runoff from construction areas and material storage sites; diverting water flow
away from such polluted areas, so that pollutants do not mix with storm water
runoff from undisturbed areas. Temporary drainage channels, perimeter
dike/swale, etc. shall be constructed to carry the pollutant-laden water directly
to the treatment device or facility (municipal sewer line). The plan shall
indicate how the above is accomplished on-site, well in advance of the
commencing of the construction activity.
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21.5.
Part – (B) – Conditions of Contract
Spill prevention and control:
Spill prevention and control plans should be made, clearly stating measures
to stop the source of the spill, to contain the spill, to dispose the
contaminated material and hazardous wastes, and stating designation of
Representative trained to prevent and control spills. Hazardous wastes
include pesticides, paints, cleaners, and petroleum products.
21.6.
General instructions for handling & disposal of hazardous waste
21.6.1.
Labelling all Hazardous products and waste as ‘Hazardous materials’
in local and other preferred languages should be incorporated as a
general practice.
21.6.2.
Locations should be identified on the construction site to store the
used/scrap wastes and the items should be segregated and stored in
the bins accordingly. The waste should be then handed over to the
authorized agencies for safe disposal.
21.6.3.
In addition to the hazardous materials, following items used for
application of hazardous chemicals should also be properly disposed
Cotton Hosiery gloves/ Criss cross gloves
Arm Guards
Corrugated /Thermocol Scrap
Plastic and glass ware.
21.6.4.
Effective soil erosion and sedimentation control plan:
There are two types of soil erosion control.
Temporary controls – provide cover to the soil for a short period of time, till
the permanent measures are adopted. These are usually applicable during
construction.
Permanent controls – These measures are incorporated on soil, when
activities that disturb the soil are over. These measures could be applicable
post construction in the proposed landscape plan.
21.6.5.
Temporary control measures
Temporary seeding:
This is carried out to reduce erosion and sedimentation from disturbed areas
that will not be stabilized for long period and where permanent plant growth is
not appropriate. Temporary seeding means growing vegetative cover for a
short period of time on disturbed site areas that are prone to soil erosion.
Fast growing grasses are used in this system whose root systems hold the
soil together so that they are not carried away by storm water run-off and
wind. Temporary seeding also helps in reducing the problem of dust from
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bare soil due to construction. Temporary seeding should be performed on
areas which have been disturbed during construction and which are likely to
be disturbed after a few weeks. For this time gap the top soil should be
preserved from erosion through temporary measures like temporary seeding.
Earth dikes and contour trenching
An earth dike is a ridge and channel arrangement constructed parallel to the
contours along the face of the slope at regular intervals on the lengths and
slopes greater than 10% (1:10). They are used to protect the work areas from
upslope runoff and to divert the sediment – laden water to sediment traps.
The dike can be made of compacted soil and stone or vegetation to stabilize
the channel.
Mulching
Mulch is simply a protective layer of a material that is spread on the top of the
soil. Mulching is a temporary soil stabilization technique. Mulches can either
be organic, such as grass, hay, straw, wood chips, and similar materials, or
inorganic, such as stones and brick chips. Mulching should be used with
seedlings and plantings in steep slope areas (slopes>33%). Steep slopes are
prone to heavy erosion. Netting or anchoring should be used to hold it in
place. Other surface runoff control measures like contour terracing to break
up concentrated flows shall be installed prior to seeding and mulching.
Geotextiles
Geotextiles are porous fabrics which are manufactured by weaving or
bonding fibers made from synthetic materials. Geotextiles like nets when
combined with mulch act as stronger mulch. Nets are made from jute or other
wood fibers and can be used to stabilize soil while plants are growing.
Geotextiles could also be used to stabilize the flow on channels and swales.
It could also be used to protect seedlings until they become established.
Sediment trap
A sediment trap can be constructed by excavating a pond across a low-lying
area on the site. The trap should retain the run off enough to allow the
sediment to settle before they are released. The outlet is constructed using
large stones and aggregate to slow down the release of run off. This system
is appropriate for small drainage areas not more than 10 acres (Source: EPA,
Chapter 3 – Sediment and Erosion Control). The volume of the storage
required depends upon the surface type and rainfall intensity.
Application:
A temporary sediment trap could be used in conjunction with swales, contour
trenches, earth dikes, diversion channels. Sediment traps are suitable for
small drainage areas, less than 10 acres. The traps should be maintained till
the site area is permanently stabilized through vegetation and or when
permanent structures are in place.
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21.6.6.
Part – (B) – Conditions of Contract
Sediment trap
Preservation & protection of existing vegetation:
It is required to preserve and protect existing vegetation by non-disturbance
or damage to specified site areas during construction. The project site has
many trees – details of which have been shared by the Landscape
consultants. It is recommended to preserve and/or transplant the mature
trees as much as possible. Following measures shall be followed to protect
the retained tree during construction process:
Damage to roots should be prevented during trenching, placing backfill,
driving or parking heavy equipment, dumping of trash, oil, paint, and other
materials detrimental to plant health. These activities should be restricted to
the areas outside of the canopy of the tree.
The tree should not be used for support; its trunk should not be damaged by
cutting and carving or by nailing posters, advertisements, or in any other way.
Lighting of fires or carrying out heat or gas emitting construction activity
within the ground covered by canopy of the tree shall not be permitted.
Existing drainage patterns shall not be modified unless specifically directed
by the landscape Consultant/Consultant/ engineer-in-charge.
Maintenance activities shall be performed as needed to ensure that the
vegetation remains healthy.
The preserved vegetated area shall be inspected by the landscape
Employer’s Representative/ Employer’s Representative/ Employer at regular
intervals so that it remains undisturbed. The date of inspection during
construction activity and, type of maintenance or restorative action followed
shall be recorded in the logbook.
Compensate the loss of trees due to the construction activity by
compensatory plantation. Replant the same number of mature or fully-grown
trees as eliminated during the construction. Replant the same native and/or
non-invasive species, which existed on the site before elimination, in the
proportion of 1:3.
21.6.7.
Plant in excess of 25% to the minimum requirement (in addition to
the above requirement) within the site premises (plantation to follow
same criteria as above).
21.6.8.
Provide minimum level of sanitation / safety facilities for construction
workers
Follow the various guidelines laid down in the National Building Code 2005
for construction safety for construction workers.
Follow the various guidelines laid down in the National Building Code 2005
for health and sanitation facilities for workers residing on site.
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Ensure regular maintenance and repair of heavy machinery, lifts, hoists, lift
equipment and other equipment. Maintain them in good working condition.
Provide warning and safety signs as appropriate across the site.
Ensure the safety nets and harnesses are provided for construction workers
working on higher floors. Ensure that the walking boards and formwork are
stable.
Provide safety equipment like safety helmets, jackets, boots, gloves, etc.
Provide fire extinguishers on site.
Provide sufficient light for workers to work safely at night.
The construction company should develop safety policies and ensure their
implementation.
21.7.
NBC good practices recommendations:
21.7.1.
Provide a minimum illumination level of 100 lux for work on site
during night.
21.7.2.
Provide overhead protection against falling materials.
21.7.3.
Helmets, conforming to accepted standards, should be worn properly
at all times.
21.7.4.
Safety goggles should be worn during activities which are hazardous
to eyes like drilling, cutting, welding, etc.
21.7.5.
Welders and gas cutters should have the required safety equipment
like gloves, safety boots, hand shields, etc.
21.7.6.
Cordon off areas during construction in order to prevent people from
hitting the structural components and getting hurt.
21.7.7.
Display warning signs wherever required like ‘NO SMOKING‘, ‘MEN
AT WORK’, ‘440 VOLTS’, etc. (preferably in a local language or
signages)
21.7.8.
All electrically operated hand tools must be provided double earthing
to make it safe for the workers.
21.7.9.
afety belts should always be available on site for use as and when
required. The rope used for the belts just be treated to be free of dew
and rotting.
21.7.10.
All fire extinguishers should be maintained in serviceable condition.
21.7.11.
All construction waste on site should be collected daily and disposed
of safely.
21.7.12.
Workers should not be permitted to wear clothes which enhance their
getting involved in an accident. No loose clothes should be permitted.
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21.7.13.
21.8.
Workers working at heights should have sufficient provisions
provided to them like safety belts, harnesses, sturdy scaffolding, etc.
Reduction air pollution during construction
21.8.1.
Site preparation
21.8.1.1.
Stage construction on site and clear vegetation only from
those areas where work has to begin right away.
21.8.1.2.
Provide at least a three meter high hoarding around the
perimeter of the site, next to the road or public area.
21.8.1.3.
Provide dust screens, sheeting or netting along the perimeter
of the building.
21.8.1.4.
Vegetate/mulch all areas where vehicles do not ply. In case
mulching or vegetating is not possible, apply gravel or
landscaping rocks to the areas. Vegetate/mulch all loose soil
and exposed earth.
21.8.1.5.
Identify areas on site where vehicles have to ply. Limit
movement of vehicles only to designated areas on site. Limit
vehicle speed on site to a maximum of 10 km/hour.
21.8.1.6.
Ensure that the vehicle circulation paths and parking areas
are hard paved or covered with gravel, etc.
21.8.1.7.
All stationary vehicles on site should not have their engines
idling and should be turned off. Ensure constant monitoring
on site to ensure various measures are being implemented
properly. Put a dust and air pollution control plan in place
during construction.
21.8.2.
Water spraying
21.8.2.1.
Use water as a dust suppressant. Spray water over areas
where demolition work is being carried out. Spray water to
suppress dust on any unpaved road or pathway. Regularly
wash the wheels of vehicles plying in and out of the site to
prevent any dust from travelling outside.
21.8.2.2.
Dust problems due to vehicles can also be reduced by
having a trough of water or metal grills on the roads right at
the entrance of the site. This would ensure that the dust in
the wheels of the vehicles is either washed in the trough of
water or shaken off by travelling over the metal grill. Ensure
that all vehicles and gensets use cleaner fossil fuels like Ultra
Low Sulphur Diesel, etc.
21.8.3.
Cover and enclosure
21.8.3.1.
Cover all loose stored material with geotextile or any
impervious fabric or covering.
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21.8.3.2.
Cover all dusty loads on vehicles with impervious sheeting
before they enter or exit the site.
21.8.3.3.
Store loose materials in enclosed spaces. Provide wind
barriers or fences or wind breakers around the area where
loose soil, sand, etc., are stored.
21.8.3.4.
Store materials on site in an area away from sensitive areas
surrounding the site like schools, hospitals, etc.
21.8.3.5.
All gensets should be maintained properly. The gensets used
on site should meet the recommended pollution norms.
Minimum stack height should be provided for all gensets
based on height of the building and capacity of the gensets.
21.8.3.6.
Toxicants, contaminants on a building construction site and
guidelines for their handling and disposal
21.8.4.
Asbestos products – insulation, tiles etc
21.8.4.1.
To effectively handle asbestos products several elements
need to be considered. Site Engineers and building
Employers must:
21.8.4.2.
Keep an up-to-date inventory of all asbestos-containing
materials on the site/building
21.8.4.3.
Ensure that all asbestos-containing materials are clearly
identified.
21.8.4.4.
Conduct a risk assessment of the potential for exposure to
any of the asbestos-containing materials.
21.8.4.5.
Develop safe work procedures, including the correct use of
personal protective equipment, for workers who may work
near asbestos-containing materials
21.8.4.6.
Instruct all workers who could be exposed in all aspects of
the asbestos handling precautions.
21.8.4.7.
Prepare written work procedures specific to each job site and
make them available to all workers required to follow the
procedures.
21.8.4.8.
Ensure that work is carried out under the supervision of
experienced and qualified supervisors along with the uses of
appropriate safety equipments.
21.8.4.9.
Handling and disposal of the asbestos products should be
as per instructions and procedures marked in the
manufacturers manual.
21.8.4.10.
Any asbestos containing building component should be
clearly identified and information should be given to the
building residents/manager.
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21.8.4.11.
21.8.5.
Part – (B) – Conditions of Contract
All asbestos products for disposal should be kept in a
separate marked covered bin and given to authorized agency
for disposal.
Centering oil, formwork oil prevention of oil spillage at the time
of oiling of machinery or metal works on construction site.
21.8.5.1.
All vessels used for oil collection/ storage should be
appropriately secured to avoid spillage.
21.8.5.2.
Vessels should be kept under the equipments for collection
of leaked oil during maintenance of equipments or during
time of greasing of metal works during construction.
21.8.5.3.
Any spilled oil is to be covered with sand immediately.
21.8.5.4.
In case of fire/spillage the Fire & safety department should
be informed.
21.8.5.5.
In case of heavy leakage of oil the Security department
should be notified.
21.8.5.6.
It is the primary responsibility of the site engineer to ensure
that these procedures are adhered to. Mop cloths or other
materials used for cleaning up or wiping during oil and diesel
works should be disposed off.
21.8.6.
Tar and Tar products (bitumen, felt, water proofing compounds
etc.)
21.8.6.1.
Wear personal protective equipment & clothes (hardhat,
gloves, goggles, earmuffs, etc.), as appropriate.
21.8.6.2.
Avoid any kind of contacts with the materials.
21.8.6.3.
Wear respiratory protection and gloves while working.
21.8.6.4.
Wear the chemical goggles when using, applying or handling
chemical liquids or powders from containers labeled
"Caustic" or "Corrosive."
21.8.6.5.
When handling hot tar, wear clothing made of cotton or nonsynthetic fibers. Wear long sleeve shirts, long pants and
gloves.
21.8.6.6.
Do not smoke or eat while performing tar work.
21.8.6.7.
Prevent spillage on the ground and other surfaces.
21.8.6.8.
Disposal – All tar and tar products for disposal should be
kept in a separate marked covered bin and give to authorized
agency for disposal.
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21.8.7.
Part – (B) – Conditions of Contract
Chemical admixtures, sealants, adhesives solvents etc.
21.8.7.1.
Wear safety shoes with non-skid soles.
21.8.7.2.
Wear long-sleeve shirts and protect hands with protective
gloves and appropriate eye protection.
21.8.7.3.
Every worker should use respiratory protective equipment
during working with chemical admixture products, sealants,
adhesives, solvents etc.
21.8.7.4.
Avoid any kind of skin contact with the chemicals used.
21.8.7.5.
Wash well with soap and warm water or use special
cleansers, especially after direct contact with chemicals, and
before drinking and eating.
21.8.7.6.
Do not inhale or smell the chemicals when the cans are
opened.
21.8.7.7.
Disposal of containers of chemical products, materials
applied with chemical products etc should be done by
segregating and collecting these separately as hazardous
waste. These should then be given to an authorized agency
for disposal.
21.8.7.8.
These materials should never be burnt.
21.8.8.
Paints, pigments, dyes and primers
21.8.8.1.
Wear safety shoes with non-skid soles.
21.8.8.2.
Wear long-sleeve shirts and protect hands with protective
gloves and appropriate eye protection.
21.8.8.3.
Every worker should use respiratory protective equipment
during working with chemical admixture products, sealants,
adhesives, solvents etc.
21.8.8.4.
Avoid any kind of skin contact with the chemicals used.
21.8.8.5.
Lead-based paint should be avoided completely.
21.8.8.6.
Wash well with soap and warm water or use special
cleansers, especially after direct contact with paints,
pigments, etc., and before drinking and eating.
21.8.8.7.
Do not inhale or smell the chemicals when the cans are
opened.
21.8.8.8.
Disposal of containers of paints, pigments, dyes and primers,
other products used for its application, or any other products
applied with these products should be done by segregating
and collecting these separately as hazardous waste. These
should then be given to an authorized agency for disposal.
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21.8.9.
Product packaging (cement bags, cartons, containers, plastic
covers etc.)
21.8.9.1.
Collect all product-packaging material at a designated area.
21.8.9.2.
Reuse & recycle to the extent possible the product packaging
material.
21.8.9.3.
Handover the packaging material to proper recycling agents
or Municipal authority for recycling or proper disposal.
21.8.10.
Fluorescent Lamps Intact and Crushed, Halogen Lamps, Arc
Lamps, UV Lamps, High Pressure Sodium Lamps, Neon Lamps,
Incandescent Lamps
21.8.10.1.
Collect all the above-mentioned materials separately in
properly marked bins.
21.8.10.2.
Handover the material to proper recycling agents or
Municipal authority.
21.8.11.
Mercury Containing Lamps and Tubes, Mercury Vapor Lamps,
Mercury Containing Devices – Mercury switches, relays,
regulators, thermostats, thermometers, manometers and debris
containing mercury
21.8.11.1.
First, builder should be encouraged to buy products that do
not contain mercury. There are now several products on the
market that can be used as substitutes to mercury.
21.8.11.2.
Make sure Representative are familiar with the proper
cleanup procedures for handling a spill involving mercury.
21.8.11.3.
Do not place mercury-containing materials in waste
receptacles for bio-hazardous waste because mercury will be
released to the atmosphere when the bio-hazardous waste is
incinerated.
21.8.11.4.
Collect all the mercury containing materials separately in
properly marked bins.
21.8.11.5.
Handover the material to proper recycling agents or
Municipal authority.
21.8.12.
All types of batteries
21.8.12.1.
Always wear goggles or a visor when working on batteries.
21.8.12.2.
Wherever possible, always use a properly designated, wellventilated area for charging.
21.8.12.3.
Remove any metallic items from hands, wrists and neck
(rings, chains etc) before working on a battery.
21.8.12.4.
Used Battery to be disposed of to the Authorized Battery
Dealer
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Chennai Metro Rail Ltd, – Contract No.
21.8.13.
Part – (B) – Conditions of Contract
Electronic
Ballasts,
PCBs,
Transformers,
switchgear, Lead Cable, Oil filled / gel filled cables
capacitors,
21.8.13.1.
Collect all the above-mentioned materials separately in
properly marked bins as per manufacturers instructions.
21.8.13.2.
Handover the material to proper recycling agents or
Municipal authority.
21.8.14.
Electronic Waste– computer products, circuit boards, CRTs,
electronic parts, solder dross, weld waste
21.8.14.1.
Collect all the above-mentioned materials separately in
properly marked bins as per manufacturer’s instructions.
21.8.14.2.
Store them properly and prevent rusting of the components,
so as to maintain its recycling value.
21.8.14.3.
Handover the material to proper recycling agents or local
authority.
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
APPENDIX - 1
Proforma of Bank Guarantee for Earnest Money Deposit
Whereas, ………………………………………………………… (hereinafter called “the Tenderer”) has
submitted its tender dated, ------------------------- for the “METRO HEADQUARTERS BUILDING AND
OTHER METRO RAIL AMENITIES AT NANDANAM, CHENNAI, TAMILNADU” hereinafter called “the
tender”.
KNOW ALL MEN, by these presents, that we, …………………………………………. , having our
registered office at, . . . . . . . (hereinafter called “the Bank”), are bound unto, the Chief General
Manager (EC), Chennai Metro Rail Ltd, Koymbedu Depot, Koyambedu
(hereinafter
called
the
“Employer”),
in
the
sum
of
Chennai 600 107,
INR………….
(Indian
Rupees………………………………………………… only), for which, payment, well and truly to be
made, to the said “Employer, the Bank binds itself, its successors, and assigns by these presents.
Sealed with common seal of the said Bank, this ……………… day of …………. 2015.
The Conditions of the obligation are :
a)
if the Tenderer , withdraws his tender, during the period of tender validity.
b)
if the Tenderer fails to accept the corrections of his errors in the tender documents as
determined by the “Employer”
c)
If the Tenderer having been notified of the acceptance of his tender by the “Employer” during
the period of validity of tender :
i)
fails or refuses to execute the Form of Agreement.
ii)
fails or refuses or neglects to furnish the Performance Bank Guarantee.
We undertake to pay to the “Employer”, the above amount, upon receipt of his, first written demand,
without the “Employer, having to substantiate his demand, provided that in his demand the
“Employer“, will note, that the amount claimed by him, is due to him, owing to the occurrence of any of
the above conditions, specifying the occurred condition or conditions.
This guarantee will remain in force up to and including the date, thirty (30) days after the date of
expiry of the period of tender validity, and any demand in respect thereof should reach the Bank not
later than the date of expiry of this guarantee.
Signature of the Bank
Signature of Witness
Name of Witness
Address
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
APPENDIX – 2
ARTICLES OF AGREEMENT
(FORMAT)
ARTICLES OF AGREEMENT made on this …...….
day of …...........
2015 between
M/s………………, The Chief General Manager (EC) CMRL, Koyambedu Depot, Koyambedu,
Chennai 600 107, Tamil Nadu, India, (hereinafter called "the Employer or the Employer") of the one
part on behalf of the President of India, New Delhi. and.................................................................... of
the
other
part,
whose
registered
office
is
situated
at,………………………………………………(hereinafter called “the Contractor )
WHEREAS the Employer is desirous of to do “CONSTRUCTION OF METRO HEADQUARTERS
BUILDING AND OTHER METRO RAIL AMENITIES AT NANDANAM, CHENNAI, TAMILNADU”,
(hereinafter called "the Work"), and has caused drawings and Bill of Quantities showing and
describing the work to be done as prepared by or under the direction of Consultant, M/s. C.R.
Narayana Rao, (Consultants) Private Limited Old No. 5, New No. 10, Karpagambal Nagar, Luz,
Mylapore, Chennai - 600 004, [hereinafter referred to as the “Employer’s Representative“].
AND WHEREAS the said drawings numbered, hereinafter referred to as “the Contract / Tender
drawings”, as per list attached to the Tender document covering conditions, the specification and the
Bill of Quantities, have been signed by or on behalf of the parties hereto.
AND WHEREAS the Contractor has furnished Bank Guarantee for a sum of INR.………………. (
Indian Rupees …………………………………………. only) as Performance Bond valid from the date of
commencement of work till the end of Defects Liability Period of 730 days from the date of taking over
the work by the Employer with provision for direct revalidation of the Bond, on demand if so required
by the Employer, for due performance of this Agreement.
AND WHEREAS the Contractor, has supplied the Employer with a fully priced copy of the said Bill of
Quantities (which copy is hereinafter referred to as "the Contract Bills") AND WHEREAS the Contract
/Tender Drawings and the Contract Bills have been signed by or on behalf of the parties hereto.
NOW IT IS HEREBY AGREED AS FOLLOWS:
1.
For the consideration hereinafter mentioned, the Contractor will, upon and subject to the
Conditions annexed, carry out and complete the Work shown upon the Contract / Tender
Drawings and described by ,or referred to, in the Contract Bills and in the said Conditions.
2.
The Employer will pay the Contractor a sum of INR ……. (Indian
Rupees……………………….… only) (hereinafter, referred to as "the Contract Sum") or such
other sum as shall become payable hereunder at the times and in the manner specified in the
said Conditions.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
3.
The term "the Employer’s Representative" in the said Conditions shall mean the said
M/s.C.R. Narayana Rao (Consultants) Private Limited or in the event of his ceasing to be
the Employer’s Representative for the purpose of this Contract, such other person as the
Employer shall nominate for that purpose not being a person objected to by Contractor, for
reasons considered to be sufficient by an Arbitrator appointed in accordance with Article-.9.
Provided always, that no person subsequently appointed to be the Employer’s Representative
under this clause shall be entitled to disregard or overrule any certificate or opinion or
decision or approval or instruction given or expressed by the Employer’s Representative(s) for
the time being.
4.
The said Condition and Appendix thereto shall be read and construed as forming part of this
Agreement and the parties hereto shall respectively abide by and submit themselves to the
Conditions and perform the agreements on their parts respectively in such Conditions
contained.
5.
The plans, agreement and documents mentioned herein, shall form part of this Contract.
6.
The Contract is not a lump sum contract, but an item rate contract to carry out the work in
respect of Construction and associated works. The Contractor shall be paid for the actual
quantity of work done as measured at site at the accepted rate contained in the Bill of
quantities and Probable quantities, or as provided in the said Conditions.
7.
The Employer reserves to himself the right of altering the Drawings and nature of the work by
adding to or omitting any items of work, or having portions of the same carried out without
prejudice to this Contract. The individual quantities can vary to any extent, however the scope
and extent of changes that can be ordered by the Employer will be limited to +/- 30% of the
contract sum, and the Contractor shall not be entitled to any compensation or claim due to
such change (s) / Order (s) by the Employer. The Contractor will only be paid for the actual
quantity of works done, payable at the accepted unit rates.
8.
All differences and disputes arising between the Employer / Consultant, on his behalf, and the
Contractor, either during the progress or after completion or abandonment of works, shall be
settled by referring to Arbitration, as detailed in Clause-20 of Conditions of Contract. If the
award issued by Arbitrators is not acceptable, the Contractor / Employer has to approach the
court as specified in the contract document elsewhere.
9.
Time shall be considered as the essence of this Contract and the Contractor hereby agrees
to commence the work within a period of ten days from the date of issue of Letter of Award as
provided for in the said Conditions, and to complete the entire work within a period of 24
(Twenty four) months thereof subject nevertheless to the provisions for extension of time.
10.
All payments by the Employer, under this contract will be made only through Banking Channel
at Chennai in Indian Rupees only.
11.
All disputes arising out of, or in any way connected with this Agreement, shall be deemed to
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
have arisen at Chennai and only Courts in Chennai shall have jurisdiction over them.
12.
That the several parts of this Contract, have been read by the Contractor and fully
understood by the Contractor.
Signature Clause
Contractor
Chief General Manager (EC)
Chennai Metro Rail Limited
Admin. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
Signed and
Delivered By
…………………………………..
……………………
Name & Designation
……………………………………
……………………
Address
……………………………………
…………………
……………………………………
……………………
WITNESSES :
1)
2)
Signature
Occupation
……………………………………
……………………
Address
……………………………………
……………………
Signature
……………………………………
……………………
Occupation
……………………………………
……………………
Address
……………………………………
……………………
The COMMON SEAL OF ………............................................... was hereunto affixed pursuant to the
resolutions passed by its Board of Directors, at the meeting held on .....………..
In the presence of
:
(1) Name and Designation: …………………………………….
(2) Name and Designation: …………………………………….
If the Contractor signs under its common seal, the signature clause, should correspond, with the
sealing clause , in the Articles of Association.
Directors who have signed, these presents in token thereof , in the presence of :
(1) Name and Designation: ……………………………………..
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Part – (B) – Conditions of Contract
(2) Name and Designation:………………………………………
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
APPENDIX- ‘3’
FORM OF PERFORMANCE GUARANTEE
1.
In consideration of the Chief General Manager, ( EC ) CMRL, Koyambedu Chennai 107,
Tamil Nadu, India,. (hereinafter, called “Employer” having agreed to allow M/s.
……………………….. (hereinafter called, “the said Contractor(s)”) from the demand under
the terms and conditions of an Agreement No. . . . . . . . . . . . . ., for the work of “Construction
of Head Quarters building and other Metro Rail Amenities at Anna Salai, Nandanam, Chennai
600 035., (hereinafter called “the said Agreement” for furnishing Performance Bond for the
due fulfillment, by the said Contractor(s) of the terms and conditions in the said Agreement,
by production of a BANK GUARANTEE for INR.. . . . . . . . ( Indian Rupees.. . . . . . . . . . .
only). We, the . . . . . . . . . . . . . (Name of the Bank) having our Head Office at ,. . . . . . . . . . .
and having branch at,. . . . . . . . . . referred to as “the Bank” at the request of M/s. ….. . . . . . .
Contractor(S), do hereby undertake to pay to the Employer an amount not exceeding INR....
. . . . . ., on demand by the Employer.
2.
We, . . . . . . . . . . . . . . . . . . . . (Name of the Bank) . . . . . . . . Branch, do hereby undertake to
pay the amounts due, and payable under this guarantee without any demur, merely on a
demand from the Employer, stating that the amount claimed is required to meet the
recoveries due or likely to be due, from the said Contractor(s). Any such demand made on
the Bank shall be conclusive as regards the amount due, and payable by the Bank under this
guarantee. However, our liability under this guarantee shall be restricted to an amount not
exceeding, INR... . . . . . . . ( Indian Rupees.. . . . . . . . only).
3.
We undertake to pay to the Employer the amount due under this Guarantee so demanded,
notwithstanding any dispute or disputes raised by the Contractor(s), in any suit or proceeding
pending before any Court, or Tribunal, relating thereto, our liability under this present being
absolute and unequivocal.
The payment so made by us under this bond shall be a valid discharge of our liability for
payment there-under.
4.
We , . . . . . . . . . . . . (Name of the Bank) . . . . . . . . .. , Branch, further agree, that the
guarantee herein contained shall remain in full force and effect during the period, that would
be taken for the performance of the said agreement, and that it shall continue, to be
enforceable till the dues of under or by virtue of, the said agreement have been fully p,d and
its claims satisfied or discharged ,or till the Engineer in charge on behalf of the Employer
certifies that the terms and conditions of the said Agreement have been fully and properly
carried out by the said Contractor(s) accordingly discharges this guarantee.
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Chennai Metro Rail Ltd, – Contract No.
5.
Part – (B) – Conditions of Contract
We, . . . . . . . . . . (Name of the Bank) . . . . . . . . ,Branch, further agree with the Employer,
that the Employer, shall have the fullest liberty, without our consent and without affecting in
any manner ,our obligations hereunder, to vary any of the terms, and conditions, of the said
Agreement ,or to extend time of performance, by the said Contractor(s), from time to time, or
to postpone, for any time, or from time to time, any of the powers exercisable, by the
Employer ,against the said Contractor(s), and to forbear or enforce, any of the terms and
conditions, relating to the said agreement, and we shall not be relieved, from our liability, by
reason of any such variation or extension of time being granted to the said Contractor(s), or
for any forbearance act or omission, on the part of Employer or any indulgence by the
Employer to the said Contractor(s), or by any such matter or thing whatsoever which under
the law relating to sureties would, but for this provision have effect of so relieving us.
6.
This guarantee will not be discharged, due to the change in the constitution of the Bank or the
Contractor(s).
7.
We hereby waive the necessity of your demanding, the Contractor, before presenting us,
with the demand.
8.
We, . . . . . . . . . . . . (Name of the Bank) . . . . . . Branch , lastly undertake not to revoke this
guarantee except with the previous consent, of the Employer in writing.
9.
This guarantee shall be valid upto . . . . . . . . . . . . , not –withstanding, anything contained
hereinbefore , our liability against this guarantee, is restricted to INR. . . . . . . ( Indian
Rupees.….. …. . only) ,and it will remain in force till . . . . . ………..) ,unless, a claim or
demand in writing is made against us under this guarantee before the expiry of six months
from the aforesaid date that is before . . . . . . . of . . . . ……….. …. ( . . ………………..) ,all
your rights under the said guarantee shall be forfeited and, we shall be relieved and
discharged from all liability hereunder.
Dated the
day of
………
for (Name of the Bank)
Branch.
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
APPENDIX - 4
(In a Stamp Paper of ………../-)
AFFIDAVIT
We have submitted Bank Guarantee, for the work of . . . . . . . . . . . . . . . . . . . . . . . . . . .
Agreement No. ---------------- from ------------(Name of the Bank) ------------------ Branch, to The Chief
General Manager (EC ) , Chennai Metro Rail Ltd, Koyambedu, Chennai 600 107, Tamil Nadu, with a
view to furnish Performance Bond. This Bank Guarantee expires on .. . . …….. We undertake, to
keep the validity, of the Bank Guarantee in force by getting it, extended from time to time, at our own
initiative, up to a further period of six months or as directed by the Chief General Manager, (EC)
Chennai Metro Rail Ltd, Chennai -107 . We also indemnify, The Chief General
Manager, (EC)
CMRL,, Koyambedu, Chennai 600 107, against any losses arising out of non-encashment of the Bank
Guarantee, if any.
Notary Public Signature
Authorised Signature of the Contractor
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Part – (B) – Conditions of Contract
Chennai Metro Rail Ltd, – Contract No.
APPENDIX - 5
PROFORMA OF BANK GUARANTEE FOR MOBILISATION ADVANCE PAYMENT
In consideration of The Chief General Manager (EC), Chennai Metro Rail Ltd, Koyambedu, Chennai
600 107, Tamil Nadu, India (hereinafter called the “Employer “, having agreed to pay mobilisation
advance, under the terms and conditions of letter of acceptance, No............................... dated
……...........,
made
between
M/s.
……………................................………………………………………………………………. ,a company
having
its
registered
office,
at
..............................................................................
,in
..........................................................
in
the state of .................... , (hereinafter called "the said CONTRACTOR", which expression, shall
unless, the context required otherwise, include its successors and assigns), for the WORK
“Construction of Head Quarters building and other Metro Rail Amenities at Anna Salai, Nandanam,
Chennai 600 035., CHENNAI, TAMILNADU” by "the said CONTRACTOR", on production of a Bank
Guarantee, for INR. ............................. (Indian Rupees ........................................................only).
We, ............................................................ (hereinafter referred to "as the Bank" at the request of
M/s..................................................... , do hereby undertake to pay to the Employer an amount not
exceeding INR................... (Indian Rupees..............................…………………………………...
................................................................. only).
We, ................................................ do hereby undertake. to pay the amounts due. and payable under
this guarantee. without any demur, merely on a demand from the Employer, stating that the amount
claimed is required to meet the recoveries due or likely to be due from the said CONTRACTOR. Any
such demand made on the Bank shall be conclusive as regards the amount due and payable by the
Bank under this guarantee. However, our liability, under this guarantee shall be restricted to an
amount
not
exceeding INR. ........................... (Indian Rupees ..................................
............................................................... only).
We undertake to pay to the Employer any money so demanded ,notwithstanding any dispute or
disputes raised by the CONTRACTOR in any suit or proceeding pending before any Court or Tribunal
relating thereto, our liability under this present being absolute and unequivocal.
The payment so made, by us under this guarantee shall be a valid discharge of our liability or
payment there-under and the CONTRACTOR shall have no claim against us for making such
payment.
This Guarantee shall remain in force and effect so long as the said advance or any part thereof,,
remaining outstanding ,and shall expire and become ineffectual only after the recovery of the entire
sum of INR..________________________ covered by the Guarantee.
The Guarantee shall come into force from the date the CONTRACTOR receives from the Employer
the said advance.
This Guarantee will not be discharged due to change in the constitution of the bank or the
CONTRACTOR.
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
We, .................................................... ,lastly undertake not to revoke this guarantee except with the
previous consent of the Employer in writing.
This Guarantee shall be valid upto ................................, unless extended on demand by the
Employer. Notwithstanding anything mentioned above, our liability against this guarantee is restricted
to INR............................. (Indian Rupees ........................................……….
................................... only).
Witness:
For and on behalf of the Bank
:
Designation
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Chennai Metro Rail Ltd, – Contract No.
Part – (B) – Conditions of Contract
APPENDIX ‘6’
SOIL INVESTIGATION REPORT
(Attached separately)
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF
TAMILNADU)
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER
METRO RAIL AMENITIES AT ANNA SALAI, NANDANAM,
CHENNAI 600 035
TECHNICAL PART
PART 1(C) TECHNICAL SPECIFICATION
VOLUME III – TECHNICAL SPECIFICATIONS
DATE FOR SUBMISSION OF TENDER ON 25-06-2015 at 15.00 Hours
DATE FOR OPENING OF TECHNICAL TENDER ON 25-06-2015 at 15.30 Hours
TO BE SUBMITTED TO:
The Chief General Manager(EC)
Chennai Metro Rail Limited
Admn. Building, CMRL Depot
Poonnamallee High Road ,
Koyambedu, Chennai - 600107
TENDER SUBMITTED BY:
M/s._________________________
Address_____________________
____________________________
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
SECTION – 1
PARTICULAR SPECIFICATION
TABLE OF CONTENTS
1.0
GENERAL
2.0
THE SITE
3.0
THE WORKS
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
SECTION – 1
PARTICULAR SPECIFICATION
1.0
GENERAL
1.1.1
Scope and Applicability
This Particular Specification gives the project specific special requirements for the of
Construction of Metro Headquarters Building and Other Metro Rail Amenities at Annasalai,
Nandanam, Chennai - 600035. herein after referred to as the Works, except where
otherwise modified or amended within the Contract. Reference must be made to the
General Specification for general requirements and to the appropriate Technical
Specification for the corresponding technical requirements of all work.
1.1.2
The Specifications listed in paragraph 1.1.3 (below) have been added for guidance of
the Employer / Employer’s Representative responsible for carrying out the Works who
shall however ensure that all aspects of the construction of the Works shall comply
with Local Standards, Laws and Regulations and accepted good practice in India.
The Indian Standards referred to shall be subject to its relevance as appropriate
currency and British Standards that are referred herein shall correspond to equivalent
Indian Standards (IS) that apply.
1.1.3
1.2
The following specifications shall be applicable to the work in addition to the Technical
Specification provided for other sub-heads to the masonry, floor etc. pertains to civil and
structural works in general.
a)
Particular specification
b)
General specification
c)
Technical specification for instrumentation and monitoring
Statutory Bodies
The requirement of statutory bodies connected with the project work shall be complied with by
taking timely action without causing any hold up in completion of work as per time schedule.
1.3
Contractor’s Responsibility
Apart from carrying out necessary surveying and setting out of the buildings and equipment
foundations wherever required collecting all materials, equipment, plant, labour,
consumables, tools and services necessary for proper execution, fabrication, ensuring quality
control by conducting required tests at the appropriate time and intervals during the
execution, disposal of excavated material as instructed, carrying out all associated works like
removal, disposal of the debris, getting out, remove temporary facilities on completion of the
works, clearance from local bodies / authorities for commissioning of all installation /
equipment of the project work shall be obtained and furnished before taking over of the
completed work, all within the quoted rates only. Machinery operators, drivers should have
valid license.
Child labours are strictly prohibited.
Top most attention shall be paid to the Health, safety of workers and Environment and the
same shall be monitored on daily basis by a qualified and experienced personnel in HSE. .A
LMV (PASSENGER VEHICLE) shall be kept available round the clock as ambulance with
drivers on shift basis.
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
2.0
THE SITE
2.1
Description of the site
2.2
2.1.1
2.1.2
The site is located at Survey No 3871/A part , Block no 76, Nandanam, Chennai
The Site covers an area of 9.2 acres.
2.1.3
The full report of the site investigation may be examined during office hours and by
prior appointment at the Employer / Employer’s Representative.
Site Conditions
2.2.1
2.3
2.4
Monitoring
2.3.1
The Contractor shall allow for providing and maintaining the check points and
settlement monitoring points as directed, at the site, the constructed works and
adjacent structures / retaining walls and for monitoring them at the frequencies shown.
Reference shall be made to the Technical Specification for Instrumentation and
Monitoring. Results shall be reported in MS Project / Primevera and graphical format
weekly.
2.3.2
Should the monitoring points mentioned in 2.3.1 (above) be existing and serviceable,
the Contractor shall conduct an initial conditional and full monitoring survey on site
possession and shall thereafter maintain and survey those points as specified.
2.3.3
All adjacent roads, structures and utilities that may be affected by the works shall be
surveyed and monitored prior to the commencement of the works to provide a
baseline set of readings. In particular, monitoring points shall be installed on and
adjacent to the railway and hospital mentioned in 2.4.1 (below).
Interfaces – Adjacent Sites, Ground, Roads and Structures
2.4.1
2.5
The Contractor shall forthwith notify the Employer / Employer’s Representative in
writing should conditions encountered on the site be significantly different from those
generally described in the Contract Documents.
Adjacent to the site there is on western side.The works, including all associated
temporary works, shall be designed and constructed to minimise the effect on all
adjacent roads, structures and utilities and the Contractor shall take all necessary
precautions in this respect.
Supervision
The supervision requirements in terms of grades and numbers of Employer /
Employer’s Representative etc. shall be as provided in the Conditions of Contract.
3.0
THE WORKS
3.1
Description
The project is for the Construction of Metro Headquarters Building and Other Metro Rail
Amenities at Annasalai, Nandanam, Chennai - 600035. including all facilities
Key Elements
3.3
Interfaces – Co-ordination and Management
The Contractors role and responsibility in Interface Management in terms of management and
“team-leading” of Sub-contractors particularly with regard to shared access, work sequencing,
4
Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
information requirements and forward planning etc. Long lead-in and procurement times for
imported items to be identified to the Contractor to assist his forward planning shall be as
provided in the Conditions of Contract.
3.4
Specialist Trades
Full method statements on a trade-by-trade basis for all trades not covered in the
accompanying TS shall be as provided in the Technical Specification of respective trade
should include any requirements in excess of those specified in the Technical Specification.
3.5
Samples
3.6.1 The Contractor shall provide all samples required by the Specification for the approval
of the Employer / Employer’s Representative and provide safe storage including racks for the
display, reference and inspection of approved samples.
3.7
3.6.2
Quality samples.
3.6.3
The Contractor shall prepare samples for quality control purposes, of all major
work to be constructed using his proposed methods and by his proposed
personnel, for approval by the Employer / Employer’s Representative . Such
samples shall include, without limitation, the civil and structural samples scheduled
in Table – 1 below. Until an acceptable standard of finish and quality of work is
obtained in the sample no work represented by the sample is to be constructed for
the works.
Sample
Pavement on
grade
Description
1.2 m x 1.2 m
slab including
Water Tank
1.2 m x 1.2 m
slab and 1.2 m
(H)
kicker
including
Quality items
Scratched (brushed) non-slip surface
tamped (herringbone) ribbed surface
Construction joint (CJ)
Movement joint (MJ)
Isolation joint (IJ) including filler and
sealant
Saw-cut control joint
Expansion joint (EJ) including dowel bars,
filler and sealant
Concrete
CJ
Reinforcement and cover blocks
Render
Fairfaced finish
Embedded pipe with puddle flange
Guarantees
3.7.1
The Contractor shall provide in a format acceptable to the Employer / Employer’s
Representative the following specific item guarantees
3.7.1.1 Caulking materials, sealant, hydrophilic strips.
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
SECTION - 2
GENERAL SPECIFICATION
TABLE OF CONTENTS
1.0
GENERAL
2.0
SCOPE OF WORK
3.0
CONTRACT DRAWINGS
4.0
SITE INFORMATION
5.0
SETTING OUT
6.0
MATERIALS
7.0
STORAGE OF MATERIALS
8.0
WORKMANSHIP
9.0
PLANT
10.0
POLLUTION & ENVIRONMENTAL PARTICULARS
11.0
METHODOLOGY AND SEQUENCE OF WORK
12.0
TESTING OF WORK AND MATERIALS
13.0
FIELD LABORATORY
14.0
PROTECTION
15.0
CLEARING OF SITE
16.0
PREPARATION OF BUILDING FOR OCCUPATION
17.0
RATES
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Part 1 ( c ) Technical Specification
SECTION – 2
INSTRUMENTATION AND MONITORING
TABLE OF CONTENTS
1.0
GENERAL
2.0
INSTRUMENTATION USED IN MONITORING
3.0
MONITORING OF CONSTRUCTION.
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Part 1 ( c ) Technical Specification
SECTION – 2
INSTRUMENTATION & MONITORING
1.0
GENERAL
1.1
Scope
1.1.1 This Specification gives the technical requirements for instrumentation for and
monitoring Construction of Metro Headquarters Building and Other Metro Rail Amenities
at Annasalai, Nandanam, Chennai – 600035 except where otherwise modified or
amended within the Contract. All general requirements are given in the accompanying
General Specification and Particular Specification covering, but not limited to
definitions, Contractor’s responsibilities, site conditions, site safety, construction
programme, quality control, materials, testing, site transportation and accommodation,
temporary works, maintenance and as-built drawings.
2.0
INSTRUMENTATION USED IN MONITORING
2.1
General
2.2
2.1.1
Prior to commencement of any work the Contractor shall be responsible for installing
instrumentation, comprising inclinometers, piezometers and standpipes, and building
and ground settlement points as shown on the drawings. The Contractor shall obtain
instrumentation equipment from an approved supplier. The Contractor may nominate
a specialist Sub-contractor for the instrumentation works to the prior approval of the
Client / Consultant.
2.1.2
The Contractor shall satisfy himself that the drill whole locations for the
instrumentation are free from existing services prior to commencement of drilling. In
order to avoid any utilities and services the required drill hole positions may be
adjusted onsite to the approval of the Client / Consultant. The Contractor shall be
responsible for any damage and any claims arising from such damage and shall
make every effort to make good the damage or have the damage made good
forthwith.
2.1.3
The Contractor shall obtain any and all necessary permits and permissions required
in connection with drilling and excavation work for the purpose of instrumentation
installation.
2.1.4
Should the Contractor propose alternative locations and instrumentation for
monitoring, he shall submit a shop drawing of the proposal for the Client /
Consultant’s approval.
Inclinometer System Installation
2.2.1
Wherever instructed by the Client / Consultant the Contractor shall install
inclinometers in drill holes sunk for this purpose. The inclinometers shall be installed
in accordance with the written instructions of the Manufacturer of the equipment.
These instructions shall be submitted to the Client / Consultant for approval prior to
the commencement of installation.
2.2.2
Drill holes shall be sunk in “H” size unless otherwise specified by the Client /
Consultant. The rate of drilling shall be limited to prevent jamming of the casing.
Measurers to prevent jamming such as surging of the casing or the use of bentonite
as drilling fluid may be used where necessary with the approval of the Client /
Consultant. Where inclinometers are to be installed in any pile a 150 mm steel tube
to the length specified shall be firmly tied to the reinforcing cage or by other means as
appropriate.
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2.3
2.2.3
The back filling grout shall be a bentonite cement mix with strength comparable to
that of the surrounding soil.
2.2.4
The Contractor shall submit full details of the proposed grout mix for the approval of
the Client / Consultant . When required by the Client / Consultant , the Contractor
shall perform trial mixes and tests such as laboratory unconfined triaxial compression
tests or vane shear tests to ensure the suitability of the proposed grout mix.
2.2.5
Prior to installation, the end edges and the keyways of the inclinometer tubings shall
be examined and the Contractor shall remove any damaged tubings and provide
replacements when required to do so by the Client / Consultant . The inclinometer
tubings shall be inserted into the drill hole inside the temporary casing. The top and
bottom of the inclinometer tubing shall be fitted with an end cap and all tubing
couplings shall be riveted connections. During connection of the tubings, the inserted
section shall be securely clamped at ground level and the next section connected to
it. All completed connections shall be sufficiently wrapped with sealing tape to
prevent ingress of grout. The tube shall be filled with water to overcome buoyancy.
2.2.6
After insertion of the inclinometer tubing, the hole shall be back filled by pumping
grout through a tremie pipe. All grout mix quantities shall be monitored and records
shall be submitted to the Client / Consultant with full details of the installation. Where
required by the Client / Consultant, the Contractor shall take samples of the grout
being used for curing and subsequent strength testing. The grout shall be pumped
initially to fill the top of the temporary casing. The casing shall then be extracted in
such a manner that the level of the grout inside the hole shall be at all times higher
than the bottom of the casing. In filling grout may be necessary, the adjustment shall
be carried out during the grouting work if the time required to extract the casing is
considered to be too long.
2.2.7
The Contractor shall flush the tubings after installation to remove all solids and flush
again after two days.
Piezometer and Standpipe Installation
2.3.1
Piezometer
2.3.1.1 Where instructed by the Client / Consultant , the Contractor shall install
piezometers in drill holes sunk for this purpose. The drill holes shall be a
minimum of “N” size. Samples shall be taken as instructed for each drill hole.
The piezometer pipe shall be rigid PVC tubing not less than 19 mm nominal
bore. It shall be supplied and installed in not less than 3 m lengths except for
one shorter length as required to suit the total piezometer dimensions. The
tubes shall be joined together, and to the porous element, with approved
couplings and glue such that the joints remain water proof under the
anticipated head of water.
2.3.1.2 The tube shall be connected at its lower end, by a suitable PVC fitting, to a
piezometer tip. The tip shall be of rigid PVC perforated pipe, not less than
150 mm having an expanded polystyrene lining moulded to form an inner
tube not less than 13 mm bore and retained in position by a moulded flange
or of alternative design (such as a porous ceramic pot) to the approval of the
Client / Consultant . The piezometer tip shall have permeability of the order
of 5 x 10 m/sec. The upper end of the tube shall be set in concrete and fitted
with a lockable surface box.
2.3.1.3 Where the depth of the completed hole is greater than the depth at which the
porous element and sand filter are to be installed, then the bottom of the hole
shall be grouted. The grout used shall consist of 1:1 cement : bentonite
prepared by adding sufficient water to form a pumpable grout. Sufficient
grout shall be placed in the hole using a tremie pipe reaching to the bottom of
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Part 1 ( c ) Technical Specification
the hole, such that the upper surface of grout shall be 1.5 m below the
proposed filter.
2.3.1.4 A bentonite seal shall be formed using bentonite tables or balls of approved
manufacture, that are capable of forming an effective seal in the hole and
tamped in position with a suitable shaped tamper to form a homogeneous
plug to the hole. The level of the top of the plug shall be recorded.
2.3.1.5 The sand filter surround to the porous element shall be clean sand, falling
wholly between the limits of grading 1200 and 210 microns, and the volume
of the sand filter to be placed shall be recorded. The sand filter forming the
response zone shall extend from 0.5 m below the tip of the porous element to
1.0 m above the tip of the element.
2.3.1.6 In placing the sand the Contractor shall ensure that no sand adheres to the
soil n the sides of an unlined hole. Where there is water in a hole the
Contractor shall allow sufficient time for all the sand to settle and
measurements of the upper surface of the sand shall be taken from time to
time to ensure this. The final elevation of the top of this sand shall be
recorded.
2.3.1.7 A bentonite seal shall be formed above the sand filter as for the lower seal in
2.3.1.4 (above) and the hole shall then be back filled with cement / bentonite
grout.
2.3.1.8 The Contractor shall submit to the Client / Consultant for approval prior to
the construction of the piezometer, samples of the bentonite he intends to
use.
2.3.2
Standpipes
2.3.2.1 Where instructed by the Client / Consultant the Contractor shall install
standpipes in drill holes sunk for this purpose. The drill holes shall be a
minimum of “N” size. Samples shall be taken as instructed for each drill hole.
2.3.2.2 The stand pipe installation shall be identical to the piezometer installation
described in 2.3.1 (above) except that :
2.3.3
a)
No upper bentonite seal shall be installed and the hole shall be back
filled with 10 mm single size gravel to a depth of 0.5 m below the
ground surface. The remaining hole shall then be filled with cement /
bentonite grout, a lockable surface box installed and
b)
The tube shall be capped at its lower end and perforated for its length
with 6 mm diameter holes for a minimum of 5% of its surface area.
The upper 1 m shall be free from such perforation.
Commissioning and Monitoring of Piezometers and Standpipes
2.3.3.1 Within three working days of the completion of the installation of any
piezometer or standpipe the Contractor shall carry out a response test to
prove the successful operation of the installation. The Contractor shall give
the Client / Consultant a minimum one working days notice prior to such test
and shall carry out the test in the following manner :
a)
Record water level in piezometer / standpipe.
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b)
Fill the piezometer / standpipe tube to the top with water.
c)
Record the fall of the water level as a distance from the top of the
tube after the following elapsed time in minutes.
2.3.3.2 The Contractor shall submit to the Client / Consultant the results of all
response tests within two working days of completion of each test.
2.4
Ground Surface and Building Settlement Point Installation
2.4.1
Ground surface settlement points
2.4.1.1 The Contractor shall install ground surface settlement points where instructed
by the Client / Consultant as described in 2.4.1.2 (below).
2.4.1.2 A hole, of minimum dimensions 400 mm diameter and 600 mm deep (300
mm deep in paved areas) shall be formed. The hole shall be back filled with
concrete and trimmed and levelled at ground surface. A 12 mm diameter
brass rod of length at least equal to the depth of the hole shall be placed
centrally and vertically within the hole containing wet concrete. The upper
end of the brass rod shall have a domed surface and shall protrude 3 mm
above the final level of the placed concrete.
2.4.1.3 The Contractor shall also install survey nails of approved design in locations
as instructed by the Client / Consultant .
2.4.2
Building settlement points
2.4.2.1 The Contractor shall install building settlement points where instructed by the
Client / Consultant as described in 2.4.2.2 (below).
2.4.2.2 A hole, of dimensions 30 mm diameter and atleast 80 mm in length shall be
drilled into the wall or column. The hole shall be back filled with grout or
epoxy material to the approval of the Client / Consultant . A 19 mm anchor
socket shall be placed and supported centrally within the hole and shall have
a threaded protective cap, the face of which is level with the wall or column
face. A sample of the anchor socket and protective plug shall be submitted
to the Client / Consultant for approval, and the Contractor shall obtain and
use the approved materials.
2.5
Defective Instrumentation
2.5.1
All instrumentation installed shall be to the approval of the Client / Consultant . Any
instrument which, in the opinion of the Client / Consultant , cannot satisfactory serve the
purpose for which it is installed shall be repaired or replaced by the Contractor at no
extra cost to the Contract. All additional instrumentation shall be installed and
functioning to the satisfaction of the Client / Consultant before construction of the work
commences.
3.0
MONITORING OF CONSTRUCTION
3.1
General
3.1.1
A comprehensive programme of monitoring of all construction operations and
instrumentation shall be carried out as part of this contract.
3.1.2
The clauses of this Specification, the requirements specified on the drawings and any
monitoring of construction carried out by the Client / Consultant or his representative,
shall in no way relieve the Contractor of his responsibilities to prevent damage to
surrounding buildings, structures, roads or services as a result of his working. The
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Contractor shall at all times take any precautions as he sees fit to prevent untoward
movement of the adjoining ground or property.
3.2
3.3
Monitoring Equipment
3.2.1
The Contractor shall provide all necessary equipment required to monitor all
installations and shall list all such proposed equipment for the Client / Consultant s
approval prior to any installation.
3.2.2
All monitoring equipment shall be supplied by a reputable manufacturer acceptable to
the Client / Consultant and shall be installed and used by experienced personal in
accordance with the manufacturer’s written instructions and best current practice.
3.2.3
The same instruments shall be used each time the installations are monitored. In
particular only one inclinometer prove and readout unit shall be used unless
otherwise approved by the Client / Consultant .
3.2.4
All monitoring equipment shall be stored on site in controlled conditions as
recommended by the manufacturers or as otherwise agreed with the Client /
Consultant .
3.2.5
The equipment shall be calibrated to the approval of the Client / Consultant and the
results shall be submitted to the Client / Consultant prior to commencement of
monitoring.
3.2.6
The equipment shall be adequately protected against damage or theft.
Contractor shall immediately replace any equipment should it be necessary.
The
Monitoring of Installations
3.3.1
The Contractor shall carry out monitoring of ground and ground water variations during
construction in three sections as given in 3.3.1.1 to 3.3.1.3 (below).
3.3.1.1 Surface Movements
a)
Once daily throughout the course of the Contract.
3.3.1.2 Ground water Piezometers and Standpipes
a)
Only daily throughout the course of the Contract and
b)
On one designated day per week at times corresponding to high and
low tide throughout the course of the Contract.
3.3.1.3 Inclinometers
a)
3.4
Once in a weekly throughout the course of the Contract.
Readings and Reporting
3.4.1
The formats of all reports and record sheets required by this Specification shall be
submitted to the Client / Consultant for approval not more than seven days after the
award of the Contract.
3.4.2
The Contractor shall keep full details of all drilling and installation and submit a
complete record to the Client / Consultant within two working days of installation, is
so directed..
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3.4.3
3.5
Pre-construction Survey
3.5.1
3.6
3.7
The results of all monitoring shall be recorded and submitted in full graphical and / or
tubular form to the Client / Consultant within one week of the readings being taken,
or at other intervals as agreed with the Engineer.
The Contractor is advised to inspect the condition of the surrounding buildings,
structures, roads and services and where necessary record the condition of the
structures and the finishes of the buildings in case of compliant with respect to possible
damage caused by the Works.
On Site Observation
3.6.1
The Contractor shall keep adjacent roads and property clear of equipment and spoil
and shall regularly inspect the surface of the ground, surrounding buildings, structures,
roads and services and shall report to the Client / Consultant forthwith any signs of
subsidence or cracking.
3.6.2
The Contractor shall also keep the Site reasonably clear of equipment and spoil and
shall regularly inspect the surface of the ground and shall report to the Client /
Consultant forthwith any signs of subsidence or cracking.
Undue Monitoring Readings and Suspension of Work
3.7.1
If one of the following observations is noted, the Contractor shall inform the Client /
Consultant forthwith and all disturbing works shall be suspended pending review.
3.7.1.1 Any undue settlement or a difference greater than 25 mm in the settlement point
readings or as otherwise directed by the Client / Consultant .
3.7.1.2 Any undue drawdown or a difference greater than 3 m of the dry season water
level in the Piezometer / Standpipe readings.
3.7.1.3 Any undue lateral movement or a difference greater than 1 in 300 in the
inclinometer readings.
3.7.1.4 Any sign of subsidence or cracking in the surrounding buildings, structures or
roads.
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Part 1 ( c ) Technical Specification
SECTION – 3
GENERAL SPECIFICATION
1.00
GENERAL
These specifications are intended for general description of quality and workmanship of
materials and finished work. They are not intended to cover minute details. The work shall be
executed in accordance with best modern practices.
These specifications shall have precedence in case anything contrary to this is stated
anywhere in this document. The Engineer-in-Charge’s decision shall be final on any issues
arising out of such discrepancies.
This specification shall be read in conjunction with the particular specifications for various
items of work the relevant drawings, construction logic, schedule of quantities and instructions
to the Contractors to ascertain in detail the type and amount of work covered under this
scope. The Contractor shall carefully acquaint himself with the general specifications,
coordinate the same with any other specifications forming a part of the contract document and
determine his contractual obligations or the execution of various items of work in accordance
with good Construction Management practice.
All works shall be carried out as per this specification, the respective work specifications and
the latest Indian Standards, Acts, Codes and best practices.
All standards, specifications, code of practice referred to are applicable and shall be
considered to be a part of this specification. In case of variation and discrepancy in condition
mentioned here, and in particular specifications, the Employer’s representative interpretation
and discretion shall govern.
All applicable standards, specifications etc. and codes of practice mentioned in respective
work specifications shall generally be the latest editions, including all applicable official
amendments and revisions. A complete set of all these documents shall generally be
available at site, with the Contractor.
2.00
SCOPE OF WORK
The work to be carried out under the Contract shall consist of the various items as generally
described in the Tender Documents as well as in the Bill of Quantities furnished in the Tender
Documents.
The works to be performed shall also include all general works preparatory to the construction
of civil, structural, Engineer-in-Chargeural, finishing works, water supply and sanitary works,
roads, drains, site development, underground sump, substation building, STP/ETP structures
special sporting surfaces and all other related service works. The work shall include work of
any kind necessary for the due and satisfactory construction, completion and maintenance of
the works to the intent and meaning of the drawings and these specifications and further
drawings and orders that may be issued by the Employer’s representative from time to time.
The scope of work shall include compliance by the Contractor with all general conditions of
contract, whether specifically mentioned or not in the various clauses of these specifications,
all materials, apparatus, plant, equipment, tools, fuel, water, strutting, timbering, transport,
offices, stores, workshop, staff, labour and the provision of proper and sufficient protective
works, diversions, temporary fencing lighting. It shall also include safety of workers, first-aid
equipment, suitable accommodation for the staff and workmen, with adequate sanitary
arrangements, the effecting on maintenance of all insurance, the payment of all wages,
salaries, fees, royalties, duties or other charges arising out of the erection of works and the
regular clearance of rubbish, reinstatement and clearing up of the site as may be required
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completion of works safety of the public and protection of the works and adjoining land,
structures properties etc.
The contractor shall ensure that all actions are taken to build in quality assurance in the
planning and execution of works. The quality assurance shall cover all stages of work such
as setting out, selection of materials, selection of construction methods, selection of
equipment and plant, deployment of personnel and supervisory staff, quality control testing,
etc. The work of building in quality assurance shall be deemed to be covered in the scope of
the work.
The Contractor shall furnish, at least 15 days in advance, his programme of commencement
of item of work, the method of working he intends to adopt for various items of work. He shall
provide information regarding the details of the method of working, and equipment he
proposes to employ and satisfy the Engineer-in-Charge about the adequacy and safety of the
same. The sole responsibility for the safety and adequacy of the method adopted by the
Contractor will, however, rest on the Contractor, irrespective of any approval given by the
Engineer-in-Charge.
The Contractor shall strictly follow, at all stages of work, the stipulations contained in the Indian
Standard Safety Code and the provisions of the safety code and the provision of the safety rules
as specified in the General Conditions of the Contract for ensuring safety of men and materials.
Any approval, instructions, permission, checking, review, etc. whatsoever by the Engineer-inCharge, shall not relieve the Contractor of his responsibility and obligation regarding
adequacy, correctness, completeness, safety, strength, quality, workmanship, etc.
3.00
CONTRACT DRAWINGS
The Contract Drawings provided for tendering purposes shall be as contained in the Tender
Documents and shall be used as a reference and for guidance only.
The Contractor should visualise the nature and type of work contemplated and ensure that
the rates and prices quoted by him in the Bill of Quantities have due consideration of the
qualitative and quantitative variations, as may be found at the site and complexities of work
involved during actual execution/construction.
The Contract drawings will also include any other drawings which the Engineer-in-Charge
may issue from time to time during the currency of the contract.
“Issued for Construction” drawings will be issued to the Contractor during the progress of the
work and as further data becomes available to supplement the tender drawings.
“Issued for Construction” drawings will be revised and fresh revised copies issued to the
Contractor from time to time by the Engineer-in-Charge to adopt the work to the final designs
and to suit the physical conditions encountered during the progress of the work. “Issued for
Construction” drawings as issued by the Engineer-in-Charge shall form part of this
specification. Unless otherwise specified, the plans and specifications are intended to include
everything obviously requisite and necessary for the proper and entire completion of the work
and accordingly the work shall be carried out in completeness as required whether each item
is mentioned herein or not.
It shall be understood that drawings furnished to the Contractor shall be interpreted by the
use of given dimensions, and nomenclature only, and that the drawing shall not be scaled.
Figured dimensions on drawings are in all cases to be accepted in preference to scaled sizes
and drawings to a large scale shall take precedence over those to a smaller scale drawings.
In case of discrepancy the Contractor shall ask for clarification before proceeding with the
work. All dimensions shall be checked on site prior to execution.
In case of difference between drawings and specifications, the specifications shall govern.
Any thing mentioned in the specifications, and not shown on the drawings, or shown on the
drawings and not mentioned in specifications, shall be of like effect as if shown or mentioned
in both.
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Shop drawings consisting of such detailed drawings as are not included in the contract
drawings or larger scale details of certain parts of the work indicated on the contract
drawings, shall be complete and shall contain all required detailed information as may be
reasonably required for satisfactory execution of the work. Prior to submittal for approval, the
Contractor shall be responsible for thoroughly checking all drawings whether prepared by him
or by his sub-contractors to ensure that they comply with the intent and the requirements of
the contract specifications, and that they fit in with the overall building layout.
Examination and/or approval by the Engineer-in-Charge of any drawing or other drawings or
other documents submitted by the Contractor shall not relieve the Contractor of his
responsibilities or liabilities under the contract.
The approval of the drawings by the Engineer-in-Charge shall not be construed as a complete
dimensional check, but will indicate only that the general method of construction and detailing
is satisfactory. Approval of such drawings will not relieve the Contractor of the responsibility
for any errors or compliance with requirements of the contract plans and specifications not will
any discrepancy between shop drawings and contract plans, and specifications constitute a
basis for deviation from the requirements of the contract plans, and specifications. The
Contractor shall be responsible for the dimensions and design of adequate connections,
supports details and satisfactory construction of the work, any fabrication, erection setting or
other work done in advance of the receipt of approved drawings shall be done entirely at the
Contractor’s risk. Approval of the shop drawings shall not be construed as authorising
additional work or increased costs to the Employer. Adjustment in the bid price or any
extension of time to cover required changes in the shop drawings to comply with the
requirements of the contract specifications shall not be permitted.
The tendered rates/prices for the work shall be deemed to include the cost of preparation,
supply and delivery of all necessary drawings, prints, tracings and negatives which the
contractor is required to provide in accordance with the contract.
4.00
SITE INFORMATION
The Contractor shall visit the construction site and examine himself thoroughly the site
condition and satisfy himself as to the nature of the existing roads or other means of
communications, the character of the soil and the excavations, the extent and magnitude of
the work and facilities for obtaining materials and shall obtain generally his own information
on all matters affecting the execution of the work. No extra charges made in consequence of
any misunderstanding or incorrect information on any of these points or on the grounds of
insufficient description will be allowed. All expenses incurred by the Contractor in connection
with obtaining information for submitting this tender including his visits to the site or efforts in
compiling the tender shall be borne by the tenderer and no claims for reimbursement thereof
shall be entertained.
5.00
SETTING OUT
The Contractor shall set out the works. Employer will provide one permanent mark in the
vicinity of the plant for reference. All further laying out work, temporary bench-mark, grid
pillars etc. shall be carried out accurately by the Contractor and maintained till the end of the
job.
The work of setting out construction of permanent / temporary pillars etc.,shall be deemed to
be a part of general works preparatory to the execution of work and no separate payment
shall be made for the same.
6.00
MATERIALS
The relevant standards for materials, as well as the testing procedures, have been indicated
at appropriate places in the Specifications.
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Materials shall be of approved quality and the best of their kind available and shall generally
conform to I. S. Specifications. The Contractor shall order all the materials required for the
execution of work as early as necessary and ensure that such materials are on site well
ahead of requirement for use in the work.
All material brought on the site of work by Contractor meant to be used in the same, shall be
as per the specification and to the approval of the Engineer-in-Charge.
The Contractor shall obtain the Engineer-in-Charge’s approval for samples of all materials to
be used in the works and shall deposit these samples with him before placing an order for the
materials with suppliers. The materials brought on the works, shall conform in every respect
to their approved samples, fresh samples shall be deposited with Engineer-in-Charge
whenever type or source of any material changes.
The Contractor shall check each fresh consignment of materials as it is brought to the site of
works to see that they conform in all respects to the specifications of the samples approved
by the Engineer-in-Charge.
The Engineer-in-Charge will have the option to have any of the materials tested to find out
whether they are in accordance with the specification and the Contractor will bear all
expenses for such testing.
Any materials that have not been found to conform to the specification will be rejected
forthwith and shall be removed from the site by the Contractor at his own cost.
The Engineer-in-Charge shall have power to cause the Contractor to purchase and use such
materials from any particular source, as may in his opinion be necessary for the proper
execution of the work.
7.00
STORAGE OF MATERIALS
The Contractor shall store cement on site in a weatherproof and leak proof shed and the shed
shall hold atleast 3 months requirement. The Contractor shall store all the other materials in a
proper manner to avoid contamination and deterioration, at places at site approved by the
Engineer-in-Charge and protect from sun, wind, rain or other natural causes. Should the
place where the Contractor stores material be required by the Employer for any other
purpose, the Contractor shall forthwith remove the material from that place at his own cost
and clear the place for the use of the Employer.
The Contractor shall make his own arrangement for storing water, if necessary, in U.G.Sumps
or tanks or cisterns, to the approval of the Engineer-in-Charge. Care shall be exercised to see
that water is not contaminated in any way.
8.00
WORKMANSHIP
The work-involved calls for high standard of workmanship combined with speed and to the
entire satisfaction of the Engineer-in-Charge.
All works shall be true to level, plumb and square and the corners, edges and arises in all
cases shall be unbroken and neat.
Any work not to the satisfaction of the Engineer-in-Charge or his representative will be
rejected and the same shall be rectified, or removed and replaced with work of the required
standard of workmanship at no extra cost.
Child Labour is strictly prohibited.
9.00
PLANT
The Contractor will be required to provide and maintain in working order the power driven
equipments required during the construction work.
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In addition to the general conditions indicated in the Contract Documents, the following
conditions regarding use of equipment in works shall be satisfied:
a) The Contractor shall be required to give a trial run of the equipment for establishing
their capability to achieve the laid down Specifications and tolerances to the
satisfaction of the Engineer-in-Charge before commencement of the work ;
b) All equipment provided shall be of proven efficiency and shall be operated and
maintained at all times in a manner acceptable to the Engineer-in-Charge ;
c) All the plant/equipment to be deployed on the works shall be got approved from the
Engineer-in-Charge for ensuring their fitness and efficiency before commencement of
work /equipment, operators, drivers should have valid license.
d) Any material or equipment not meeting the approval of the Engineer-in-Charge shall
be removed from the site forthwith ;
e) No equipment will be removed from site without permission of the Engineer-in-Charge
; and
f) The Contractor shall also make available the equipment for site quality control work
as directed by the Engineer-in-Charge.
g) One passenger vehicle with well experienced drivers should be kept at site on 24 x 7
basis as ambulance.
10.00
POLLUTION AND ENVIRONMENTAL PROTECTION
The Contractor shall take all precautions for safeguarding the environment during the course
of the construction of the works. He shall abide by all laws, rules and regulations in force
governing pollution and environmental protection that are applicable in the area where the
works are situated.
The Contractor must take all reasonable steps to minimise dust nuisance during the
construction of the works.
11.00
METHODOLOGY AND SEQUENCE OF WORK
Prior to start of the construction activities at site, the Contractor shall submit to the Engineerin-Charge for approval, the detailed construction methodology including mechanical
equipment proposed to be used, sequence of various activities and schedule from start to end
of the project.
12.00
TESTING OF WORK AND MATERIALS
The Contractor shall, if required by the Engineer-in-Charge, arrange to test materials and / or
portions of the works at his own cost in order to prove their soundness and efficiency. If after
any such test the work or portion of works is found in the opinion of the Engineer-in-Charge to
be defective or unsound, the Contractor shall pull down and redo the same at his own cost.
Defective materials shall immediately be removed from the site.
13.00
FIELD LABORATORY
An adequately equipped field laboratory as required for site control on the quality of materials
and the works shall be provided and maintained by the Contractor till the completion of works.
The rates quoted for all the items of work shall include for the provision and maintenance of
field laboratory.
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Part 1 ( c ) Technical Specification
Description
The Contractor shall provide fully furnished and adequately equipped field laboratory
constructed as shown in drawings or as directed. The field laboratory shall preferably be
located adjacent to the site office of the Employer / Employer’s Representatives and provided
with amenities like water supply, electric supply etc.
The floor space requirement for the field laboratory shall be as indicated in the drawing or as
directed. It shall include one room for use of staff of Employer, one room for Contractor staff
and a store for the storage of samples. The remaining space shall be provided for the
installation of equipment, laboratory tables and cupboards, working space for carrying out
various laboratory tests, besides a wash basin, toilet facility and a curing tank for the curing of
samples, around 4 m x 2 m x 1 m in size and a fume chamber.
Required furniture and furnishing shall be provided in the laboratory.
The Contractor shall maintain the field laboratory in a satisfactory manner till the completion
of work.
There shall be no separate payment for the facility as it is required for site control on quality of
materials and the works.
The Contractor shall include in his rates for all the facilities.
Laboratory Equipment
The following items of laboratory equipment shall be provided in the field laboratory.
General
(i)
Oven - Electrically operated, thermostatically
1 No.
controlled, range upto 200oC sensitivity 1oC
(ii)
Platform balance 300 Kg. capacity
1 No.
(iii)
Balance 20 Kg. capacity-self indicating type
1 No.
(iv)
Electronic Balance 5 Kg. capacity accuracy 0.5
gm
2 Nos.
(v)
Water
bath-electrically
thermostatically controlled
shelves, sensitivity 1oC
1 No.
(vi)
Thermometers :
operated
and
with adjustable
Mercury-in-glass thermometer range
o
4 Nos
o
0 to 250 C
Mercury-in-steel thermometer with 30 cm stem,
range upto 300oC
(vii)
Kerosene or gas stove or electric hot plate
(viii)
Glasswares, spatulas, wire gauzes, steel scales,
measuring tape, casseroles, Kara his, enameled
trays of assorted sizes, pestle-mortar, porcelain
dishes, gunny bags, plastic bags, chemicals,
digging tools like pickaxes, shovels etc.
Set of IS sieves with lid and pan :
450 mm diameter :
(ix)
19
1 No.
As required
1 Set
Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
63 mm, 53 mm, 37.5 mm, 26.5 mm, 13.2 mm,
9.5 mm 6.7 mm and 4.75 mm size
200 mm diameter :
2.36 mm, 2.0 mm, 1.18 mm, 600 micron, 425
micron, 300 micron, 150 micron and 75 micron
2 Sets
(x)
Water testing kit
1 Set
(xi)
First aid box
1 Set
For soils and aggregates :
(i)
Riffle Box
1 No.
(ii)
Atterberg Limits (liquid
determination apparatus
(iii)
Compaction Test Equipment both 2.5 Kg and 4.5
Kg rammers (Light and Heavy comp active
efforts)
and
plastic
limits)
1 Set
1 Set
(iv)
Dry Bulk Density Test apparatus (sand pouring
cylinder, tray can etc.) complete
1 Set
(v)
Speedy Moisture Meter complete with chemicals
1 Set
(vi)
Post-hole Auger with extensions
1 Set
(vii)
Core cutter apparatus 10 cm dia. 10/15 cm
height, complete with dolly, rammer etc.
1 Set
(viii)
Aggregate Impact Value Test apparatus / Los
Angles Abrasion Test apparatus
1 Set
(ix)
Flakiness and Elongation Test Gauges
1 Set
(x)
Standard measures of 30, 15 and 3 litres
capacity along with standard tamping rod.
1 Set
(xi)
California Bearing Ratio test apparatus
1 Set
(xii)
Unconfirmed compression test apparatus
1 Set
For bitumen and bituminous mixes :
(i)
Penetrometer with standard needles
1 Set
(ii)
Riffle box - small size
1 No.
(iii)
Centrifuge type bitumen
operated, complete with
benzenes
(iv)
(v)
(vi)
(vii)
(viii)
(ix)
(i)
extractor, hand
petrol/commercial
Marshall stability test apparatus, complete with
all accessories
Field density bottle along with cutting tray, chisel,
hammer and standard sand
3 m straight edge
Camber board
Core cutting machine with 10 cm dia. diamond
cutting edge
Vacuum pump and 3 specific gravity bottles
For cement and cement concrete :
Vicat apparatus for testing setting times
20
1 Set
1 Set
2 Nos.
1 No.
1 No
1 Set
1 Set
1 Set
Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
(ii)
(iii)
(iv)
(v)
(vi)
Slump testing apparatus
Compression and Flexural strength testing
machine of 200 tonne capacity with additional
dial for flexural testing
Needle Vibrator
Air Meter
Vibrating hammer for vibrating dry mix as for Dry
Lean Cement concrete sub-base
4 Sets
1 No.
2 Nos.
1 No.
1 No.
Note : The items and their numbers listed above in this Clause shall be decided by the
Engineer-in-Charge as per requirements of the Project and modified accordingly.
14.00
PROTECTION
The Contractor shall properly cover up and protect all work throughout the duration of work
until completion, particularly masonry, arrises, mouldings, steps, terrazzo or special floor
finishes, staircases and balustrades, doors and window frames, plaster angles / corners
lighting and sanitary fittings, glass, paint work and all finishing.
15.00
CLEARING OF SITE
The Contractor shall after completion of the work clear the site of all debris and left over
materials at his own expense to the entire satisfaction of the Engineer-in-Charge and
Municipal or other public authorities.
16.00
PREPARATION OF BUILDING FOR OCCUPATION
The whole of the work shall be thoroughly inspected by the Contractor and all deficiencies
and defects put right. On completion of such inspection, the Contractor shall inform the
Engineer-in-Charge in writing that he has finished the work and it is ready for the Engineer-inCharge inspection.
On completion, the Contractor shall clean all windows and doors and all glass panes,
including cleaning of all floors, staircases and every part of the building including oiling of all
hardware. He will leave the entire building neat and clean and ready for immediate
occupation and to the satisfaction of the Engineer-in-Charge.
17.00
RATES
The quoted rate shall be for finished work covering all labour, materials, wastage, temporary
work, plant, equipment, overhead charges and profit as well as the general liabilities,
obligations, insurance and risks arising out of General Conditions of Contract.
The items rates quoted by the Contractor shall, unless otherwise specified, also include
compliance with / supply of the following:
a)
General works such as setting out, clearance of site before setting out and clearance
of works after completion.
b)
A detailed programme for the construction and completion of the works (using
CPM/PERT techniques) giving, in addition to construction activities, detailed network
activities for the submission and approval of materials, procurement of critical
materials and equipment, fabrication of special products / equipment and their
installation and testing, and for all activities of the Employer that are likely to affect the
progress of work, etc. including updating of all such activities on the basis of the
decisions taken at the periodic site review meetings or as directed by the Engineer-inCharge .
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c)
Samples of various materials proposed to be used on the work for conducting tests
thereon as required as per the provisions of the contract.
d)
Design of concrete mixes as per the relevant clauses of the specifications giving
proportions of ingredients, sources of aggregates along with accompanying trial
mixes as per the relevant clauses of these specifications to be submitted to the
Engineer-in-Charge for his approval before use on the works ;
e)
Detailed design calculations and drawings for all Temporary works (such as form
work, staging, centering, specialised constructional handling and launching
equipment and the like) to be submitted to Engineer-in-Charge for approval.
f)
Detailed drawings for templates, bar bending and cutting schedules for reinforcement,
material lists for fabrication of structural steel etc ;
g)
Mill test reports for all mild and high tensile steel and cast steel as per relevant
provisions of the specifications;
h)
Testing of various finished items and materials including bitumen, cement, concrete
as required under these specifications and furnishing test reports / certificates ;
i)
Inspection Reports in respect of formwork, staging, reinforcement and
other items of work as per the relevant Specifications ;
j)
Any other data which may be required as per these specifications or the conditions of
contract or any other annexures / schedules forming part of the contract;
k)
Any other item of work which is not specifically provided in the Bill of Quantities but
which is necessary for complying with the provisions of the contract
l)
All temporary works, form work and false work; scaffolding etc.
m)
Establishing and running a laboratory with facilities for testing for various items of
works as specified
n)
Cost of in-built provisions for quality Assurance
o)
Cost of safeguarding the environment
p)
Cost of providing “as-built drawings” in original and two sets of prints and
q)
Cost of other facilities and requirements connected with the work
All expenses incurred by the Contractor in connection with obtaining information for
submitting this tender including his visits to the site or efforts in compiling the tender shall be
borne by the tenderer and no claims for reimbursement thereof shall be entertained.
*********
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
SECTION - 4
EARTHWORK EXCAVATION
TABLE OF CONTENTS
1.0
GENERAL
2.0
Definition & Classification
3.0
Excavation
4.0
Earthwork
5.0
Filling
6.0
Testing
7.0
Precautions for Heavy Rainfall
8.0
Mode of Measurement
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Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
SECTION - 4
EARTH WORK EXCAVATION
GENERAL
1.1
Scope
1.1.1
The technical specification for all excavation and earthworks (including filling),
referred herein shall apply to the works, expect where otherwise modified or
amended within the contract.
EARTHWORK EXCAVATION
1.2.1
1.2.2
All excavation and earthworks shall comply with the requirements of The Indian
Building (Construction) Regulations and the latest version of Indian Standards (IS),
except where more stringent requirements are specified herein.
Some of the relevant Indian standards, Acts and Codes are referred to here below:
IS:383
:
Specification for coarse and fine
aggregates from natural sources for
concrete.
IS:2720 (Part-II, IV to
VIII, XXIII,
XXIV, XXVII to XXIX
& XL)
:
Methods of tests for soils determination XIV, XXI,
of water content etc.
IS:3764
:
Safety code for excavation work
IS:4081
:
Safety code for blasting and
related drilling operations
IS:4701
:
Code of Practice for earth work in
canals
IS:9758
:
Guide lines for Dewatering during
construction.
IS:10379
:
Code of practice for field control of
moisture and compaction of soils for
embankment and sub-grade.
Indian Explosives Act 1940: as undated.
1.3
Contractor’s Submission
1.3.1
The Contractor shall submit to the Engineer-in-Charge, for his approval, the following
information well before the commencement of the work.
1.3.1.1
Schedule of construction plant and haulage vehicles
1.3.1.2
Proposed sources of supply and uses of imported material
1.3.1.3
Method statement for the excavation and filling
1.3.1.4
Method statement for stock piling and disposal methods
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1.3.2
2.0
1.3.1.5
Method statement for controlling the moisture content of fills material
1.3.1.6
Method statement for controlling ground and surface water and prevention
of water damage
1.3.1.7
Method statement for monitoring ground water levels and adjacent ground
and structure
The Contractor shall prepare a shoring and excavation plan and submit to the
Engineer-in-Charge for approval prior to commencement of work well in advance.
The Contractor shall be deemed to have allowed for all time and costs associated
with the preparation of the Plan to the required standard, its approval process and
any subsequent amendments deemed necessary to satisfy the Specification or the
reasonable requirements of the Engineer-in-Charge.
DEFINITION AND CLASSIFICATION
2.1
Definitions
2.1.1
“Top soil” shall mean soil that is capable of supporting vegetation.
2.1.2
“Approved material” shall comprise all that which is acceptable in accordance
with the Contract for use in the Works, and which is capable of being
compacted in the manner specified in paragraph 5.7 (below) to form a stable
fill.
2.1.3
“Unsuitable material” shall mean other than approved material and shall
include :
a)
Material from swamps
b)
Peat, logs, stumps and perishable materials
c)
Material susceptible to spontaneous combustion
d)
Soil of liquid limit exceeding 65% and / or plasticity index exceeding
35%
e)
Material having an in-situ moisture content greater than the maximum
permitted for such material in the Contract, unless otherwise
permitted by the Engineer-in-Charge.
2.1.4
“Hard Rock” is where both the 90 class machine and D 50 class dozers (or
equivalent) are unable to function.
2.1.5
“Type A” rock fill is a well graded and durable material with a maximum
particle size of 2m.
2.1.6
“Type B” rock fill is similar, but with max. particle size of 300mm and isolated
boulders of < 2m.
2.1.7
“Special filling material” shall mean “approved material” but capable also of
passing a 75mm IS sieve. The fraction passing a 75mm IS sieve shall have
the following characteristics:
a)
Liquid limit not exceeding 45%
b)
Plasticity index not exceeding 20%
c)
Co-efficient of uniformity shall be greater than 50
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d)
The percentage passing a 63 µm IS sieve shall be less than 45% by
weight.
2.1.8
“Cohesive soil” includes clay with up to 20% of gravel and having a moisture
content not less than the value of the plastic limit minus 4.
2.1.9
“Well-graded granular and dry cohesive soils” includes clays containing more
than 20% of gravel and / or having a moisture content less than the value of
plastic limit minus 4, well-graded sands and gravels with a uniformity
coefficient exceeding 10.
2.1.10 “Uniformly-graded material” includes sands and gravels with a uniformity
coefficient of 10 or less, and all silts. Any soil containing 80% or more of
material particle size range 60 to 2 mm will be regarded as silt for this
purpose.
3.0
EXCAVATION
3.1
General
3.1.1
The Contractor shall be fully responsible for proper setting out of works,
profiling in excavation, stacking etc. taking adequate safety measures etc.
The contractor shall submit the methodology of excavation to the Employer /
Employer’s Representative for approval.
3.1.2
The Contractor shall furnish all skilled and unskilled labour, plant, tools, tackles,
equipment, men, materials required for complete execution of the work in
accordance with the drawings and as described herein and / or as directed by
the Engineer-in-Charge.
3.1.3
Excavation shall be carried out to the dimensions, lines, levels, and slopes as
indicated on the drawings. If the Contractor excavates deeper than the depths
shown on the drawings or as instructed by the Engineer-in-Charge then he
shall, at his own expense, fill in such excessive depths with CC 1:4:8 with 40
mm down size HDG metal to the satisfaction of the Engineer-in-Charge.
3.1.4
The bottoms of all excavations shall be kept free from mud and water,
trimmed clean, protected from the effects of weather and thoroughly
compacted and consolidated in an approved manner and means, subject to
the requirements as stipulated under paragraph 5.7 (below).
3.1.5
All soft or defective portions of soil below formation level shall be cut out and
filled in with approved material well consolidated in layers of approved
thickness.
3.1.6
Unless otherwise specified no excavated approved material other than
surplus to the requirements of the Contract shall be removed from the Site
except on the direction or with the permission of the Engineer-inCharge/Employer. Should the Contractor be permitted to remove approved
material from the Site to suit his operation procedures, then he shall make
good at his own expense any consequent deficit of filling arising there from
with approved material.
3.1.7
Where the excavation reveals a combination of approved and unsuitable
materials the Contractor shall, unless otherwise agreed by the Engineer-inCharge, carry out the excavation in such a manner that the approved
materials are excavated separately for use in the Works without
contamination by the unsuitable materials.
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3.1.8
All materials obtained from excavation shall remain Employer’s property. All
salvaged materials of archeological importance or of value (in the opinion of
the Engineer-in-Charge) shall be segregated from the other materials and
both stacked separately and in regular manner at locations indicated by the
Engineer-in-Charge.
3.1.9
The Contractor shall erect during progress of work caution sign boards,
adequate lighting and protective barricades.
3.2
Approval of Excavation
3.2.1
3.3
The Contractor shall report to the Employer / Employer’s Representative when
secure bottoms have been obtained to the excavations and are ready to receive
the concrete. Any concrete or other work put in before the excavations have been
inspected and approved by the Engineer-in-Charge shall, if so directed, be
removed and new work substituted in accordance with the Specification after the
excavations have been approved, all at the Contractor’s own expense.
Cuttings :
3.3.1
Unless otherwise specified or shown on the drawings, the top edges of cutting shall
be neatly rounded to the dimensions shown on the drawings or as directed by the
Engineer-in-Charge. Such work shall be deemed to be included in the Contractor's
rate for cutting work.
3.3.2
Trenches cut into the toe of a slope can undermine a slopes stability and shall not
be permitted.
3.3.3
Trenches excavated may provide a location where infiltration of water into the
hillside could cause slope instability. Trenches loosely backfilled with soil can
permit almost as much infiltration from the surface as an open trench and will
permit lateral flow of water along the trench through the backfilled material. The
Contractor shall not normally open up such service (or other) trenches in or
above slopes during the rainy season.
3.3.4
Where such trench excavations are permitted by the Engineer-in-Charge, the
Contractor shall:
(a)
protect the trench against ingress or egress of water by means of sand bags,
concrete kerbs or compacted earth fill bunds along each side of the trench
(b)
(c)
provide pumps at all low points to maintain the trench bottom in a dry state
supervise the functioning and maintenance of the pumps continuously (24 hours
per day) even when work is not proceeding and
(d)
on completion of the work, the Contractor shall backfill the trench in layers not
greater than 150mm deep compacted to not less than 95% MDD
3.4
Excavation of foundation pits and trenches
3.4.1
Where required by the nature of the materials to be excavated, the Contractor
shall provide all necessary planking, strutting and shoring required upholding
the face of the excavation and any necessary staging. The Contractor is
responsible for the design, supply, fixing and removal of all planking and
strutting required resisting all anticipated loading and to ensure safety and
prevent damage to any adjoining property. The Engineer-in-Charge may direct
that such supports be left in position.
3.4.2
The Contractor may suitably batter faces of excavations subject to the
Engineer-in-Charge’s prior approval.
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3.4.3
The bottoms of all excavations shall be leveled carefully and stepped or
benched horizontally as shown on the drawings. Any pockets of soft material
or loose rock in the bottom of pits and trenches shall be removed and the
resulting cavities and any large fissures filled with 1:4:8 mix concrete. After the
placing of any blinding concrete required by the Contract, no trimming of the
side faces shall be carried out for 24 hours.
3.4.4
The Contractor shall obtain the Engineer-in-Charges approval to all foundation
excavations prior to the placing of any blinding layer or fixing of reinforcement.
The Contractor shall also take photographic records of all such excavations
and shall provide an as-built level survey of all such excavations, prepared by
an independent registered surveyor.
3.4.5
Trenches and pits shall not be wider than is necessary for the efficient laying
and jointing of pipes or for other works to be carried out.
3.4.6
No greater length of trench shall be opened at any one time than has been
approved by the Engineer-in-Charge. All surplus spoil shall be removed
immediately on excavation. Unless otherwise specified sacked spoil for filling
shall be kept tidy at all times.
The Contractor shall make good with approved material or plain cement
concrete 1:4:8 using 40 mm metal and down size blue granite aggregate as
directed by the Engineer-in-Charge, the following:
3.4.7
3.4.7.1
3.5
3.4.7.2 Any additional excavation at or below the bottom of foundations to
remove material which the Contractor allows to become unsuitable.
Trial Holes
3.5.1
3.6
Any excavation greater than the net volume required for the works
as described in the Contract.
The Contractor shall be deemed to have satisfied himself as to conditions
affecting execution of the Works by visiting and inspecting the site of the
proposed works. He may be permitted to inspect the trial holes that have been
made and any open excavations in connection with other works should such be
in progress, and also to study any available drawings which might be of
assistance. The Contractor must clearly understand that all information is
given expressly without guarantee and he shall obtain his own information
regarding the notices of the excavation, conditions peculiar to the Site, and all
other matters affecting the proposed works, and he shall make provision in his
rates to cover for the types of materials to be excavated.
Proving of Bearing Stratum
3.6.1
Where strip, pad, raft or similar foundations are used, the bearing stratum shall
be proven by the Contractor and the results of all such proving tests shall be
submitted to the Engineer-in-Charge for information along with the records
mentioned in 3.4.4 (above) prior to the construction of any such foundation.
The Contractor shall be deemed to have allowed for all time and costs
associated with such proving and reporting of results.
3.6.2
Where foundations as mentioned in 3.6.1 (above) are to be founded on rock,
proving tests shall be carried out at each isolated pad footing or at 10m (or
other) centres and shall include core drilling to a depth of 5m below the
founding stratum and “star-drilling” or other appropriate method to detect
weathered seams, voids and the like wherever directed.
3.6.3
Where foundations as mentioned in 3.6.1 (above) are to be founded on
material other than rock, proving tests shall be carried out at each isolated pad
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Part 1 ( c ) Technical Specification
footing or at 10m (or other) centres and shall include plate loading tests or
other appropriate method as directed by the Engineer-in-Charge.
3.7
Excavation in hard rock
3.7.1
Rock which is in solid beds, which can only be removed either by air
compressed jack hammer, by wedging or chiseling by using hydraulic rock
breaker / chiseling or by using chemical compound approved make and
application as per Manufacturer’s Specification shall be treated as hard rock. A
boulder or detached rock measuring one cubic metre or more, and existing
R.CC STRUCTURES shall also be treated as hard rock if the same cannot be
removed without, wedging or chiseling. No blasting will be permitted.
3.7.2
Since blasting is not practicable and is prohibited, excavation shall be done by
air compressed jack hammer, by wedging or chiseling by using hydraulic rock
breaker / chiseling or by using chemical compound approved make and
application as per Manufacturer’s specification and it shall be restricted to the
quantity required to enable the necessary foundation etc. to be put in. In case,
the dimension of trenches exceed those shown in drawings the excess quantity
shall not be paid for.
3.7.3
Benching on rocky strata shall be done wherever required or as directed for
foundation beds and drilling of holes at specified spacing for embedment of
dowel bars as provided in the work or as shown in the drawing.
Excavation in Soft Rock :
This shall include all materials which are rock or hard conglomerate, all
decomposed weathered rock, highly fissured rock, old masonry, boulders
bigger than 0.03 cum, in volume but not bigger than 0.5 cum. and other
varieties of soft rock which can be removed only with pick axes, crow bars,
wedges and hammers with some difficulty. The mere fact that the contractor
resorts to blasting and / or wedging and chiseling of reasons of his own, shall
not mean the rock is classifiable as hard rock.
All types of Soils, Murrum, Boulders:
This includes earth, murrum, top deposits of agricultural soil, reclaimed
soil, clay, sand or any combination thereof and soft and hard murrum,
shingle etc. which is loose enough to be removed with spades, shovel
and pick axes. Boulders not more than 0.03 cum. in volume found
during the course of excavation shall also fall under this classification.
4.0 EARTHWORKS
4.1
General
4.1.1
The Contractor shall carry out all earthworks in such a manner as to prevent
erosion or slips, shall limit working faces to safe slopes and height, and shall
ensure that all surfaces have at all times sufficient gradients to enable them to
shed water without causing erosion. He shall also take all other relevant
precautions and as noted on the drawings.
4.1.2
At the end of each day, all surfaces shall be left with no area that can retain
water. If necessary, the Contractor shall provide and maintain temporary and
approved surface or sub-surface drainage system to ensure minimum delay in
working progress due to wet weather. Alternatively, adequate means, such as
covering all surfaces with polythene, shall be provided and maintained.
4.1.3
The Contractor shall provide and maintain all necessary temporary access
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roads and shall divert and reinstate permanent drainage system. All temporary
roads shall be provided with drainage ditches over full length.
4.2
Surplus Earth
4.2.1
The Contractor shall remove, deposit, spread and level surplus excavated
materials after filling where directed within the confines of the site.
Rate of excavation shall inclusive of backfilling with the available excavated
earth and multiple handling if required.
4.2.2
The Contractor shall take all necessary precautions to prevent any spillages or
soiling of the Public Roads during the earth removal operation.
The contractor shall remove all surplus and unusable excavated earth from the
site and dispose to places approved by the local authority at the quoted price.
4.2.3
4.3
4.4
Existing Services
4.3.1
The Contractor shall notify the Employer / Employer’s Representative of any
mains, pipes or conduits met with during the excavation and where any
excavation is carried out adjacent to or under any existing cable, and the like
the Contractor shall prevent damage by subsidence, as the Employer /
Employer’s Representative may direct, whether such work is shown on the
drawings or not.
4.3.2
In the event that damage is done to the public services due the Contractor’s
work or otherwise, all expenditure for such necessary repairs, etc. shall be
borne by the Contractor. Should these repairs be carried out by the relevant
Authorities, the Contractor shall reimburse the Authorities for the cost of
carrying out the repairs, failing which the Employer / Employer’s
Representative reserves the right to pay the Authorities directly and deduct
same from any monies due or becoming due to the Contractor.
Dealing with Water
4.4.1
The Contractor shall keep the excavations well drained and dry at all times and
shall take all precautions to prevent surface water from entering the
excavations. He shall maintain on the site, at all times, pumps of sufficient
capacity to deal with any surface or subterranean water, which may arise from
the excavations. The Contractor shall also provide all pumps, hoses and other
equipment necessary for the drainage and de-watering.
4.4.2
The Contractor shall allow for the construction of all necessary temporary earth
drains, 300 mm half round drains and pipe culverts and the maintenance and
temporary diversion or damming of any existing drains. If required, any drains
or water course so diverted shall be reconstructed in original position upon
completion of the works.
4.4.3
The Contractor shall provide a network of temporary drains to adequately drain
the site. The drainage system should comply with the requirements of the
appropriate local authorities. The Contractor shall obtain the necessary
approvals and pay all costs and expenses in this respect.
4.4.4
The drains shall be sufficiently large so that no mud or water will spill onto the
roads or pavements. The Contractor shall also keep the main Authorities
drains in the immediate and surrounding areas free from silting up owing to the
effluent from the site. If the water is muddy, it will be necessary to place
strutted and supported boarding near the exposed surface. The space in
between the boarding and the surface shall be filled in with graded stone
chippings and coarse sand which will act as a filter to prevent the loss of soil.
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4.5
Well point and deep well pumps
4.5.1
The Contractor shall, when using well points or deep well points for de-watering
the site, comply with the following requirements:
4.5.2
The Contractor shall provide full details of the proposed well point or deep-well
pump system duly taking into consideration the soil profile and the grain size
analysis curve as to permeability characteristics of different layers based on
bore hole data for deciding the spacing and size of Steiner pipes.
4.5.3
The Contractor shall conduct preliminary site trials to determine the final layout
of the system and verify its effectiveness and shall determine the spacing and
depth of the points and the number of stages required based upon these trials.
Two stages of de-watering shall however be a minimum.
4.5.3.1
4.5.4
The manner of installation of the well points shall not cause weakening or
subsidence of either the surrounding area or any slips in nearby slopes.
4.5.4.1
4.5.5
The jetting operation during installation of Steiner shall not cause
disturbance to sub-soil stratification.
The Contractor shall install measuring device to determine water head and flow
rate for purposes of control. The system shall provide for sufficient valves in
leaders and pipes to maintain control over separate sections of the system.
4.5.5.1
4.6
Withdrawal of stages shall be done as decided by the Employer /
Employer’s Representative at site, while removal of lowest stage,
which is mandatory, shall be only after completion of roof of the
lowest basement.
The water table shall be lowered by not less than 10 metre and
maintain the level to ensure that the bottom of excavation is
reasonably dry till the basement work is completed.
4.5.6
Where auxiliary sand drains are installed, they shall be considered an integral
part of the system.
4.5.7
The arrangement of the system shall go well with excavation operation and
shall have adequate stand by pumps etc.
4.5.8
The contract sum shall be deemed to include for the provisions of paragraphs
4.5.1 to 4.5.7 above.
Planking and Strutting
4.6.1
The Contractor shall be responsible for the design, supply, fixing and removal
of all planking and strutting, shoring, etc. required by the Works or as otherwise
deemed appropriate by the Engineer-in-Charge.
4.6.2
All such shoring etc. shall be sufficiently strong to resist earth pressure, insure
the safety of the workpeople and the works and to prevent damage to any
adjoining property. The Contractor at his own expense shall clear any falls of
earth into the excavations. The Contractor at his own cost shall similarly carry
out any consequential back filling or reinstatement.
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4.7
Steel Sheet Piling
4.7.1
Necessity
The sides of excavation in foundations whether of shallow or deep, depending
on site conditions, shall be protected and taken care of by the Contractor.
Steel sheet piles used for protection of sides of excavation shall be driven
adequately below excavation levels to give stability. The sheet piles shall be
supported at several points, by soldier beams, wales and struts. Wherever the
excavation width is more inclined bracing or rakes shall be provided to support
the sheet pile.
4.7.2
Contractors Responsibilities
The Contractor shall submit his plans on sheet piling for the pits and trenches,
shoring and strutting system along with the tender.
The Contractor shall responsible for the design of the shoring which shall be
strong enough to resist side thrust and prevent slips / blows and damage to
adjacent works and property. It shall be capable of safe removal when all the
items of work for which it is required are completed, without causing damage to
adjacent property or the foundations already completed.
Adequate protective measures shall be taken to see that the foundation
excavation does not affect or damage adjoining structures and sides of
foundations. The Contractor shall take all measures required for ensuring
stability of the excavation and safety of the property and people in the vicinity.
4.7.3
Shapes of Sheet Piling
Steel piling comprises a row of piles engaging with or interlocked with one
another so as to form a continuous wall, which may be a temporary retaining
wall to protect the sides of vertical cut for deep foundations or shallow
foundation depending on specific site condition. Steel sheet piling shall have
suitable joints, which do not deform during driving and shall form a continuous
protection wall. The pile length can be increased either by welding or bolting.
The shapes of steel sheet piles shall be of either straight sheet piling, shallow
arch-web piling, arch-web piles and or Z- piles. The deep arch-web and Z-piles
shall be used in cases where the large bending moments are to be resisted.
Where the bending moments are less, the shallow arch piles with
corresponding smaller section module shall be used. Straight-web sheet piles
shall be used where the web will be subjected to tension.
4.7.4
Driving steel sheet piles
Steel sheeting shall be driven by a pile frame with hammers or by an automatic
double acting hammer suspended from a derrick. The pile shall be guided to
an interlock system. A drop hammer or a double acting hammer shall be used
for clay and non-cohesive soils such as coarse sand and gravel respectively for
non-cohesive soils.
Alignment of the piling shall be maintained. Double acting hammers shall be
operated either by steam or by compressed air. The operation of a double
acting hammer shall be in such a manner that the whole weight of the hammer
always rest on the head of the pile. The hammer shall hit directly on the pile or
on a suitable head fixed on the pile.
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Steel sheet piles shall be interlocked in pairs with helmets. Steel sheet piles
with web section shall be reinforced by steel strips bolted or welded on to
minimise skin friction on the pile driven in stiff cohesive soil.
4.7.5
5.0
Extraction of sheet piles
The driven steel sheet piles shall be withdrawn on completion of foundation,
carefully without disturbing / damaging the newly laid foundation or the
adjoining area using either double acting hammers fitted with an extracting
attachment or an extractor suspended from a derrick.
FILLING
5.1
5.2
5.3
Filling Generally
5.1.1.
End tipping of fill shall not be permitted except in special circumstances and
then only with the approval of the Engineer-in-Charge. Such approval shall not
exempt the Contractor from compacting of the end-tipped material to the
requirements as specified in paragraph 5.7 (below).
5.1.2
When the state of the weather is such that in the opinion of the Engineer-inCharge, it would adversely affect the placing of specially compacted fill, all
such shall be stopped.
5.1.3
All filling material, whether placed and / or compacted or awaiting placing and /
or compaction which, in the opinion of the Engineer-in-Charge, does not
comply with the Specification, or has been damaged by weather or in any other
way, shall be removed and replaced at the Contractor’s expense.
5.1.4
The Contractor shall also observe all requirements of section 4 (above).
Ground Preparation for Roads and Ground slabs
5.2.1
All unsuitable material evident on the surface shall be removed. The cleared
site shall then be scarified to a minimum depth of 300mm. Any areas where
visual examination reveals the presence of unsuitable material shall be
excavated as necessary to remove such material. Any soft spots indicating
underlying pockets of unsuitable material shall also be excavated.
5.2.2
The Contractor shall undertake thorough compaction of all perimeter and
entrance areas where non-suspended ground slab has been specified.
Similarly, all areas for internal roads construction shall be thoroughly
compacted as specified herein.
5.2.3
At all times during ground preparation / earthworks the surface shall be gently
sloped to temporary ditches to enable surface water to run off. Any ponding
evident after rain shall immediately be pumped dry and the area filled and
compacted with suitable material.
Filling of Foundation pits and trenches and removal of supports
5.3.1
5.3.2
Unless otherwise shown on the drawings, or directed by the Engineer-inCharge, all filling for this purpose shall consist of approved material, deposited
and compacted by approved plan in accordance with paragraph 5.7 (below).
Timber sheeting and other excavation supports shall be carefully removed as
the filling proceeds except where such are required by the Contract to be left in
position, but the removal of such supports will not relieve the Contractor of his
responsibilities for the stability of the works.
Fill adjacent to pipes shall be free of stones, concrete, etc. and shall be hand
placed and compacted uniformly on both sides of the pipe and where
practicable upto a minimum depth of 300 mm over the top of pipes. While
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tamping around the pipes, care should be taken to avoid unequal pressure.
5.4
5.5
Embankments
5.4.1
Embankment construction (founding on fill) shall include the preparation and
compaction to the degree as specified under paragraph 5.7 (below) of the
areas upon which embankments are to be placed, the placing and compacting
of approved material within areas from which unsuitable material has been
removed as specified, and the placing and compacting of embankment
material in holes, pits and other depressions within the foundation area.
5.4.2
Unless otherwise specified, the natural ground over which filling is to be placed
shall be cleared of all loose boulders, grass, top soil, bushes, trees, roots and
other vegetation. If the Engineer-in-Charge considers that any under lying
material is unstable or unsuitable, he may direct it to be removed and replaced
with approved material.
5.4.3
The Contractor is to provide all necessary de-watering measures for the
completion of the works.
5.4.4
The construction of any section of fill shall not be commenced until the
Engineer-in-Charge has approved that section.
Placing Fill
5.5.1
Fill shall be placed in even horizontal layers over the full width laid in thickness
appropriate to the compaction plant used and compacted to satisfy the
requirement as specified in paragraph 5.7 (below).
At all times the
embankments shall be maintained with a sufficient camber and a surface
sufficiently even to enable the surface water to drain readily from them.
5.5.2
If the material deposited as fill subsequently reaches a condition such that it
cannot be compacted in accordance with the requirements of the Contract, the
Contractor shall at his own expense either.
5.5.2.1
Make good by removing the material off the fill either to tip or
elsewhere until it is in a suitable physical condition for re-use, and
replacing it with suitable materials or
5.5.2.2
Make good the material by mechanical or chemical means to
improve its stability or
5.5.2.3
5.5.3
5.6
Cease work on the material until its physical condition is again such
that it can be compacted as described in the contract.
Rock material shall be broken down to dimensions not exceeding the
compacted thickness of the layer in which it is placed. Rock material shall be
well distributed in layers extending the full width of the fill, and sufficient fine
material shall be placed around the larger material as it is deposited to fill the
voids and produced a dense compacted fill. Where insufficient fine material is
present to fill the voids, additional fine material shall be obtained from other
sources of Contractor’s expense.
In-situ Ground Compaction
5.6.1
Following ground preparation, the Contractor shall thoroughly compact the
whole using a vibrating roller of approximately 5000 kg. Dead weight, e.g.
Dynapac CA25 or Ingersoll-Rand DA30 roller as specified herein.
5.6.2
Where small deep areas have to be compacted following local excavation of
unsuitable material, the Contractor shall place fill in layers not exceeding
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200mm loose, compaction shall be carried out using approved vibratory
tampers or as specified in to be included
5.7
5.8
Compaction of Fill
5.7.1
All material shall be compacted in layers as soon as practicable after
deposition. The thickness of each layer shall be compatible with the
compaction plant used and shall be agreed with the Engineer-in-Charge. Earth
moving plant shall not be accepted as compaction equipment under this
clause.
5.7.2
Each class of material to be compacted shall be tested, prior to compaction, by
approved agencies, to determine its maximum dry density and optimum
moisture content for compaction.
5.7.3
The moisture content of the in-situ material during compaction shall be
maintained as close to the optimum moisture content as possible. If
necessary, this shall be adjusted by wetting or drying on site to establish
required in-situ field densities of the fill material to be obtained consistently.
5.7.4
Other than site formation compaction specified under paragraph 5.6.1 (above)
and small localised compaction specified under paragraph 5.6.2 (above), shall
be used as a guide for the Contractor in establishing general compaction
arrangements. However, site trials shall be carried out to ensure that the
density requirement is achieved.
Definitions and Requirements (Associated with Table 2)
5.8.1 The depth of compacted layer is the height by which an embankment is raised
by each successive compacted layer.
5.8.2 For items marked the rollers shall be towed by track laying tractors. Self
propelled rollers are unsuitable.
5.8.3
Where combinations of different types of categories of plant are used, the
compaction requirements shall be :
5.8.3.1
The depth of layer shall be that for the type of plant requiring the
least depth of layer; and
5.8.3.2
5.8.4
The number of passes shall be that for the type of plant requiring the
greatest number of passes
However, where the Contractor uses a lighter type of plant to provide some
preliminary compaction only to assist the use of heavier plant, this shall be
disregarded in assessing the above requirements.
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Table 2 : Compaction Requirement
Type of
compacti
on plant
Smooth
wheeled
roller
Category
Force
per
100mm width
2.1 – 2.6 kN
2.61 – 5.5 kN
Cohesive Soil
Well-graded
Granular and Dry
Cohesive soils
Uniformly graded
materials
Max.
depth of
compac
ted
layer
(mm)
Min.
no. of
passes
Max.
depth of
compac
ted
layer
(mm)
Min. no.
of
passes
Max. depth
of
compacted
layer (mm)
Min.
no. of
passe
s
125
8
125
10
125
10*
125
6
125
8
125
8*
150
4
150
8
Unsuitable
Unsuit
able
150
10
10
8
Unsuitab
le
150
150
Unsuitab
le
Unsuitable
125
12
Unsuit
able
150
12
Unsuitab
le
Unsuitab
le
Unsuitab
le
Unsuitable
> 5.2 kN
Grid Roller
Force
per
100mm width
2.6 – 5.2 kN
5.3 – 7.8 kN
150
4
> 7.8 kN
Pneumatic
Tyred
Roller
Unsuitable
Unsuit
able
Wheel Load
1 – 1.5 ton
125
6
1.5 – 2 ton
150
5
150
10*
Unsuitable
Unsuit
able
2 – 2.5 ton
175
4
Unsuitab
le
2.5 – 4 ton
225
4
125
12
Unsuitable
4 – 6 ton
300
4
125
10
Unsuitable
6 – 8 ton
350
4
125
10
Unsuitable
8 – 12 ton
400
4
159
8
Unsuitable
> 12 ton
450
4
175
8
Unsuitable
175
6
Unsuit
able
Unsuit
able
Unsuit
able
Unsuit
able
Unsuit
able
Vibratory
Roller
Force
per
100mm width
0.25 – 0.45 kN
0.46 – 0.70 kN
0.71 – 1.25 kn
1.26 – 1.75 kN
1.76 – 2.30 kN
75
16
150
16
75
12
150
12
125
12
150
6
12
150
8
200
10*
125
8
150
4
225
12*
150
4
175
4
250
10*
Unsuitab
le
Unsuita
ble
Unsuitab
le
Unsuita
ble
100
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Vibratory
Compactor
2.31 – 2.80 kN
175
4
200
4
275
8*
2.81 – 3.50 kN
200
4
225
4
300
8*
3.51 – 4.20 kN
225
4
250
4
300
8*
4.21 – 4.90 kN
250
4
Unsuitab
le
Unsuita
ble
Unsuitab
le
Unsuitab
le
75
6
100
6
Unsuitab
le
Unsuita
ble
75
10
150
4
75
6
Unsuitab
le
Unsuita
ble
150
4
125
6
200
4
100
6
150
5
250
4
150
6
200
5
200
6
50 – 65
100
3
100
3
150
3
65 – 75
125
3
125
3
200
3
> 75
200
3
150
3
225
3
100
150
4
150
6
Unsuitable
> 100
275
8
275
12
Unsuitable
Unsuit
able
Static pressure
under base plate
8.6 – 10.3 kN/m
10.3 – 12.1 kN/m
12.1 – 13.8 kN/m
13.8 – 17.2 kN/m
17.2 – 20.7 kN/m
> 20.7 kN/m
Vibro
Tamper
Mass Kilogram
Power
Rammer
Mass Kilogram
Unsuit
able
5.9
5.10
6.0
Settlement
5.9.1 The Contractor shall be responsible for making good to the satisfaction of the
Engineer-in-Charge all settlement in filling and back filling which may occur up
to the end of the Defects Liability Period.
Hardcore
5.10.1 Hardcore where noted, shall be well graded hard, dry stone, brick, concrete,
block or other sound hard material to the Engineer-in-Charge’s approval
broken to a maximum gauge of 50 mm thick well consolidated in layers not
exceeding 150 mm thick. The surface shall be dense and well watered prior to
placing concrete.
TESTING
6.1
General
6.1.1
Following the compaction process, in-situ density test, moisture content test,
maximum dry density test and optimum moisture content test shall be carried
as specified by the Engineer-in-Charge. Each layer shall be tested in the field
QC lab and approved by the Engineer-in-Charge prior to the placing of the next
layer where filling is required for construction of roads or non-suspended
ground slabs. The Engineer-in-Charge may require additional in-situ density
tests by an external agency.
6.1.2
Field density tests shall form the basis for acceptance of the compaction.
These tests shall be carried out at the surface and at depths 1.0m and 3.0m
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below the surface. Each layer of fill shall be well compacted and have obtained
the required density before subsequent layer can be laid. The Engineer-inCharge shall approve Field density tests procedure. The Contractor shall
undertake density and moisture control tests as and wherever directed by the
Engineer-in-Charge.
6.1.3
6.2
Reports
6.2.1
6.3
As a measure of quality control the Contractor shall undertake field density
tests at 10m centres as a minimum requirement around the areas of nonsuspended ground slabs and at 10m centres along all roads.
All tests shall be reported in a format acceptable to the Engineer-in-Charge and
shall be submitted for his approval. Daily records of field tests shall be kept
available at the site for the Engineer-in-Charge’s inspection. All sampling and
testing shall be undertaken by a laboratory to be approved by the Engineer-inCharge. The Contractor shall propose the names of at least 3 laboratories for
approval and shall allow for all costs to comply with this specification and tests.
Acceptance Criteria
6.3.1
The following in-situ field densities of compacted materials given as
percentages of the maximum dry density (MDD) shall be obtained :
6.3.1.1
6.3.1.2
6.3.1.3
6.3.1.4
Within 500mm of formation level (subgrade or foundation) – 95%
MDD
From 500mm to 1500mm below formation level – 95% MDD.
More than 1500mm below formation level – 90% MDD.
Face zone of any embankment 95% MDD.
6.3.2
The Contractor may chose to establish by site trials the relationship among the
in-situ material for compaction, compaction plant used, thickness of each layer,
and compacting effort in terms of number of passes. If so established and
agreed by the Engineer-in-Charge, the Contractor shall follow the same
compaction. However, the Employer / Employer’s Representative may at any
time carry out in-situ field density tests to determine whether the degree of
compaction has satisfied the requirement in paragraph 5.7 (above).
6.3.3
The agreed compaction arrangement as mentioned in paragraph 5.7 (above)
shall be adjusted to the satisfaction of the Engineer-in-Charge when the
compaction is found inadequate.
7.0 PRECAUTIONS FOR HEAVY RAINFALL
7.1
During Rainy Season
7.1.1
The Contractor shall intercept and conduct from the site to an indicated safe
discharge point, all surface water flowing into the site. At each intersection and
abrupt change in direction of surface drainage channels, an accessible catch
pit shall be provided within the quoted rate. All drainage works shall be kept
clear of debris at all times.
7.1.2
Where partially completed permanent drainage works discharge within the site, the
Contractor shall provide a temporary conduit to the approved discharge point at no
extra cost
7.1.3
The Contractor shall grade all earthworks to ensure run-off and to avoid ponding.
7.1.4
The Contractor shall adopt a method of working in which the minimum of bare soil is
exposed at any time. The Contractor shall provide a channel or bund wall at the head
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of basement excavation and an adequate number of sump pits at the base. The sump
pits shall be lined with chunam and contain operational submersible pumps to pump
water to approved discharge points.
7.1.5
7.2
Where slope faces are to be temporarily exposed for more than two weeks temporary
hard surfacing such as chunam shall be provided and temporary drains shall be
installed.
When heavy rainfall is imminent, or as and when determined by the Engineer-inCharge or the Engineer-in-Charge
7.2.1
Excavations shall not be left open on or adjacent to a slope.
7.2.2
In trenches on or adjacent to slopes are to be excavated, this shall be done
with extreme care and in short sections. The Contractor shall take precautions
to prevent water entering and collecting in the trench.
7.2.3
The Contractor shall seal bare earth slope faces with a suitable hard surfacing
or by sheeting well secured against the wind.
7.2.4
The Contractor shall seal earthworks to the satisfaction of the Engineer-inCharge.
8.0
MODE OF MEASUREMENT
Unless noted otherwise in the bills of quantities, the method of measurement for various
items shall be generally in accordance with IS 1200….subject to the following.
8.1
EXCAVATION
8.1.1 Raft slab and Base slab: Depth of Excavation for Raft slab / base slab requires mass
/ open excavation, mechanically or manually shall be measured from average natural
ground level (as decided by Engineer-in-Charge) upto bottom of raft slab / base slab
and size equal to size of slabs. If a levelling course is ordered, its shall be measured
upto the bottom of levelling course. Any additional excavation taken for working space,
providing shoring, strutting and for any kind of works including water proof treatment on
the side walls shall not be measured and paid for.
8.1.2
Column Footings: Depth of Excavation for footing requires mass / open excavation
shall be measured from average natural ground level (as decided by Engineer-inCharge) upto bottom of footing and size equal to size of footing. If a levelling course is
ordered, it shall be measured upto the bottom of levelling course. Any additional
excavation taken for working space, providing shoring, strutting and for any kind of
works including water proof treatment on the side walls shall not be measured and paid
for.
8.1.3
Plinth Beams : Depth of excavation for plinth beam shall be measured from ground
level upto bottom of beam and width equal to width of beam. If a levelling course is
ordered, it shall be measured upto the bottom of the levelling course.
8.1.4
Where excavation is made in trenches, measurements for cutting shall be taken by
means of tape and staff and the width of concrete or rubble packing as shown on the
drawing shall be considered as width of excavation.
8.1.5
Where excavation is made for levelling the site, levels shall be taken before start and
after completion of work and total quantity of excavation computed from these levels in
manner approved by the Engineer-in-Charge.
8.1.6
Where soil including soft rock and hard rock and mixed, hard rock after excavation shall
be stacked separately. Measurement of the entire excavation shall be taken as
indicated above. Excavation of hard rock shall be measured from stacks of excavated
hard rock and reduced by 40% for bulkage and voids. The quantity so arrived at shall
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be paid for under hard rock. The difference between the quantity of entire excavation
and quantity payable under hard rock shall be paid as soil including soft rock.
8.2
In open spaces : Filling shall be measured from cross sections of embankments, levels of
which are recorded by means of levels before start of work and after completion of work.
When it is not possible to measure filling from cross sections, it may be measured from
loose stacks or lorry measurements with previous written permission from the Engineer-inCharge and 20% deduction shall be made from the measured quantity to arrive at the net
quantity payable.
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SECTION - 5
ANTI-TERMITE TREATMENT
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Materials
5.0
Applications
6.0
Guarantee
7.0
Mode of Measurement
8.0
Proforma of Guarantee Certificate
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SECTION - 5
ANTI-TERMITE TREATMENT
1.00
SCOPE
1.01 This specification covers the general requirements for pre-constructional antitermite treatment to the buildings to protect against attack by sub-terranean termites by
suitable chemical treatment measures.
2.00
GENERAL REQUIREMENTS
2.01 The building shall be adequately protected against attack by subterranean
termites by suitable chemical treatment measures. The work shall be carried out by a
specialist pest control agency approved by the Employer / Employer’s Representative .
The work to be carried out by the specialist firm shall carry a guarantee for the
satisfactory performance of the treatment for a minimum period of 10 years. Material
Safety Data Sheets shall be furnished for the material to be used for anti termite
treatment.
3.0
2.02
The Contractor shall submit manufacturer’s literature, specifications and
application instructions for insecticide materials for the reference of Employer /
Employer’s Representative .
2.03
The treatment shall be carried out generally in accordance with the stipulations
laid down by IS 6313 - Part II, Latest (code of practice for anti-termite
measures in buildings- Part II - pre-constructional chemical treatment
measures) subject to the minimum requirements given in this specification.
2.04
The earth filling immediately under the stone soling (under floors) bottom
and side fills of all foundations (excepting foundations) and soil along external
perimeter of all buildings shall be chemically treated against termites.
2.05
The Contractor shall furnish all skilled and unskilled labour, plant, tools, tackle,
equipment, men, materials, chemicals required for complete execution of the
work in accordance with the specification as described herein and / or as
directed by the Employer / Employer’s Representative .
2.06
The Contractor shall strictly follow, at all stages of work, the stipulations
contained in the Indian Standard Safety Code and the provisions of the Safety
Rules as specified in the General Conditions of the Contract for ensuring safety
of men and materials.
CODES AND STANDARDS
The applicable Indian Standard and Code is given below:
IS : 6313 Part II:
Code of practice for anti-termite measure
(Latest edition)
in
buildings pre-constructional
chemical treatment measures.
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4.00
MATERIALS
4.01 The chemical to be used as insecticide for the treatment shall be Biflex Tc, TC
stands for Termiticide Concentrate for Termite Control (Bifenthrin) and the application
shall be diluted 1 part of chemical Biflex Tc with 49 parts of water to get 0.05%
emulsion and strictly in accordance with the manufacturer’s specification.
5.00
APPLICATION
5.01 Latest IS 6313 (Part-II) shall be followed as general guidance for preparation
and application of chemicals. The chemical solution shall be prepared by mixing the
chemical with the appropriate quantity of water to obtain a chemical emulsion of the
correct concentration as stipulated in IS : 6313 (Part - II).
The application shall be as follows :
Dilute 1 part of chemical Biflex Tc with 49 parts of water to get 0.05% emulsion.
The prepared emulsion shall be applied by trained operators strictly in
accordance with the Manufacturer’s Specifications / directions. Health and
safety precautions recommended by manufacturer shall be observed during the
treatment. The Contractor shall protect surfaces not intended to have
treatment.
To facilitate proper penetration of the chemical into the soil, a pressure pump
of adequate capacity and sprayers shall be employed to apply the solution.
5.02
Foundations and basement
The treatment is applied essentially to masonry foundations in trenches/ Raft
foundation/ Foundation in basements where there are voids in the joints
through which termites may move above to seek entry into buildings. Hence the
masonry foundations in trenches / Raft foundation/ Foundation in basements
and the areas as specified in the bills of materials are required to be completely
enveloped by a chemical barrier.
The treatment shall start at a depth of 500mm below the ground level in the
case of masonry foundation and the treatment shall start at a depth of 500mm
below the horizontal excavated surface at the raft slab level in case of
foundation in basements except when such ground level is raised or lowered by
filling or cutting after the foundations have been cast. In such cases, the depth
of 500mm shall be determined from the new soil level resulting from the filling
or cutting mentioned above and in soil in immediate contact with the Horizontal
/ vertical surfaces of foundations shall be treated at the rate of 7.5 litres per
sq.metre.
5.03
Top Surface of Plinth Filling
The top surface of the consolidated earth within plinth walls shall be treated
with chemical emulsion at the rate of 5 liters per sqm of the surface before the
stone bed or sand bed is laid. If the filled earth has been well consolidated and
the surface does not permit the emulsion to seep through, holes up to 50 to 75
mm deep at 150 mm centres both ways may be made with 12 mm dia. mild
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steel rod on the surfaces to facilitate saturation of the soil with the chemical
emulsion.
5.04
External Perimeter of Building
After the building is complete, the earth along the external perimeter of the
building should be roded at intervals of 150 mm and to a depth of 300 mm.
The rods should be moved backward and forward parallel to the wall to
breakup the earth and chemical emulsion poured along the wall at the rate of
7.5 litres per square metre of vertical surfaces. After the treatment, the earth
should be tamped back into place. Should the earth outside the building be
graded on completion of building, this treatment should be carried out on
completion of such grading.
5.05
Soil Surrounding Pipes
Wherever any service pipes enter the soil inside the area of the foundation of
any building, the soil surrounding the point of entry of each pipe at the
foundation, floor etc. shall be fully soaked with the chemical solution for a
distance of atleast one meter from the point of such entry.
5.06
Expansion Joints
Soil beneath expansion joints at ground floor level shall be specially treated as
directed. The joint itself shall also be treated as directed by the Employer’s
Employer / Employer’s Representative .
5.07
Treatment Under Apron
The soil below the concrete for stone aprons to be provided around the
perimeter walls of all buildings shall also be treated with the chemical solution.
5.08
Treatment Over DPC
Top of concrete damp proof course in external and internal walls shall be given
a liberal coat of chemical solution when the concrete is still green.
6.00
GUARANTEE
The Contractor shall provide a written guarantee in the format given in the next page
that the building covered in this contract will be protected from termites for a period of
ten years from the date of substantial completion of work covered under this contract.
The Guarantee shall be in legal paper in an acceptable form.
7.00
MODE OF MEASUREMENT
The measurement shall be in square metre for the plinth area of the building /area of
raft slab in the case basement floor treated.
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PROFORMA OF GUARANTEE CERTIFICATE
Name of the Firm/Company and its address.
Dear Sirs,
Pest Control Pre-Construction Anti-termite Treatment Guarantee regarding.
We hereby certify that the foundation(s) and Structure(s) of the premises of the
....................................... described in the schedule below, have been pre-treated by us against
subterranean termite infestation in accordance with our procedure for pre- treatment set out
in our letter(s) dated ......... and in accordance with the terms and conditions under which the
said work has been awarded to us.
We hereby guarantee that the foundation(s) and structure(s) of the said premises of the
....................................... shall be safe against subterranean termite attack or infestation for a
period of TEN YEARS from ………............................................. to. .....................................
In the event of the said structure(s) and foundation(s) of the premises of the
......................................... being or becoming subject to subterranean termite attack or
infestation at any time during the guaranteed period of Ten years, we agree to carryout as
often as it becomes necessary, at our cost and expense, all and every treatment that may be
necessary to render the said foundations and structures free from such subterranean termite
attack or infestation.
The question whether the foundation(s) and structure(s) of the premises are or become
subject to subterranean termite attack or infestation and whether any anti-termite treatment is
or has become necessary shall be decided by the .................................. ....... and we agree
that their decision in this regard shall be final and binding on us.
Yours faithfully
Signature
:
Name of the Company
:
Address
:
Seal
:
***
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Part 1 ( c ) Technical Specification
SECTION – 6
CONCRETE WORKS
TABLE OF CONTENTS
1.0
General
2.0
Materials
3.0
Concrete – Workmanship
4.0
Mode of measurement
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SECTION - 6
CONCRETE WORKS
1.0
CONCRETE - GENERAL
1.1
Scope
1.1.1
1.2
This section gives the technical requirements for all structural concrete in building and
civil Construction Management works except where otherwise modified or amended
within the Contract. All general requirements are given in this specification and in the
Bill of quantities covering, but not limited to; definitions; Contractor’s responsibilities;
site conditions; site safety; construction programme; quality control; materials; testing;
site transportation and accommodation; temporary works; maintenance and as-built
drawings.
Building Regulations and Authoritative Standards and Codes of Practice
1.2.1
Where the structural concrete is to be used in any building works in the concrete shall
comply with the requirements of the latest version of Indian Standards (IS), except
where more stringent requirements are specified herein. A complete set of all these
documents shall generally be available at site with the Contractor.
1.2.2
List of certain important Indian Standards and Codes applicable to this work is given
below. However, the applicable standards and codes shall be as per, but not limited
to the list given below :
IS:383
:
Coarse and fine aggregates from natural
sources for concrete.
IS:432
:
Specification for mild steel, medium
bars and hard drawn steel wire
reinforcement.
IS:455
:
Portland slag cement
tensile steel
for concrete
IS:456
:
Code of practice for plain and reinforced
concrete.
IS:457
:
Code of practice for general construction
of plain & reinforced concrete for dams
massive structures.
IS:516
:
Method of test for strength of concrete
IS:650
:
Standard sand for testing of cement
IS:1199
:
Methods of sampling and analysis of
concrete
IS:1200
:
Methods of measurement of building
and civil Engineer-in-Charge /Engineer ing works
IS:1489
:
Portland-pozzolana cement
Fly ash based &Calcined clay based
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IS : 1566
:
Hard drawn steel wire fabric for
Concrete reinforcement
IS : 1786
:
Specification for cold-worked steel high
strength deformed bars for concrete
reinforcement.
IS : 1791
:
Batch type concrete mixers.
IS : 1834
:
Hot applied sealing compound for joint
in concrete.
IS : 1838
:
Preformed fillers for expansion
joint in concrete pavements and
structures
IS : 2062
:
Steel for general structural purposes.
IS : 2074
:
Ready mixed paint, air drying, red oxide
-Zinc, chrome priming.
IS : 2204
:
Code of practice for construction of
reinforced concrete shell roof.
IS : 2210
:
Criteria for the design of
reinforced concrete shell structures and
folded plates.
IS : 2386
:
Methods of test of aggregates for
concrete
IS : 2430
:
Methods of sampling of aggregates for
concrete.
IS : 2438
:
Roller pan mixer
IS : 2502
:
Code of practice for bending and fixing
of bars for concrete reinforcement.
IS : 2505
:
Concrete vibrators - immersion type
IS : 2506
:
General requirements for screed board
concrete vibrators
IS : 2514
:
Concrete vibrating tables
IS : 2571
:
Code of practice for laying in-situ
cement concrete flooring
IS : 2722
:
Portable swing weigh batchers for
concrete (Single and double bucket
type)
IS : 3025
:
Methods of sampling and test
(physical and chemical) for water and
waste water.
IS : 3067
:
Code of practice for general design
details and preparatory work for damp
proofing & water proofing of buildings.
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IS : 3370
:
Code of practice for concrete
structures for the storage of liquids.
IS : 3414
:
Code of practice for design and
installation of joints in buildings.
IS : 3558
:
Code of practice for use of
immersion vibrators for consolidating
concrete.
IS : 4031
:
Methods for physical tests for hydraulic
cement.
IS : 4082
:
Recommendation on stacking and
storage of construction materials at site.
IS : 4326
:
Code of practice for earthquake
resistant design and construction of
buildings.
IS : 4656
:
Form vibrators for concrete.
IS : 4671
:
Expanded polystyrene for thermal
insulation purposes.
IS : 4925
:
Batching and mixing plant.
IS : 4995
:
Criteria for design of reinforced concrete
bins for the storage of granular and
powdery materials
IS:4998
:
Criteria
chimneys
for
design
of
reinforced
IS : 5256
:
Code of practice for sealing
expansion
joints in concrete lining on canals.
IS : 5816
:
Method of test for splitting tensile
strength of concrete cylinders.
IS : 6452
:
Specification for high alumina cement
for structural use.
IS : 64 61
:
Glossary of terms relating to cement
concrete.
IS : 6494
:
Code
of
practice
for
water
underground water reservoirs and
swimming pools.
IS : 6509
:
Code of practice for installation of
joints In concrete pavements.
IS : 6909
:
Specification for supersulphated
Cement.
IS : 7293
:
Safety code for working with
Construction machinery.
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Part 1 ( c ) Technical Specification
IS : 7861
:
Code of practice for extreme weather
Concreting
IS : 8041
:
Specification for rapid hardening
Portland cement (first revision)
IS : 8042
:
IS : 8043
:
Specification for white Portland cement
(first revision)
Specification for hydrophobic Portland
Cement (first revision)
IS : 8112
:
43 Grade ordinary Portland cement
IS : 9012
:
Recommended practice for shotcreting.
:
Method of making, curing and determining
strength of accelerated cured concrete test specimens.
IS : 9103
:
Admixtures for concrete.
IS : 10262
:
Recommended guidelines for concrete mix design.
IS : 11384
:
Code
of
practice
for composite construction in
structural steel and concrete.
IS : 12118
:
Two part polysulphide based sealant.
IS:1220
:
Code of practice for prosvision of water Stops at transverse
contraction joints in masonry and
concrete dams.
IS:12269
:
53 Grade ordinary Portland cement.
IS:12600
:
Low heats Portland cement.
SP : 23
:
Handbook of concrete mixes
SP : 24
:
Explanatory Hand book on Indian Standard code
for plain and reinforced concrete(IS:456-1978)
IS : 9013
compressive
1.2.3
The Contractor must understand thoroughly any such requirements stated by the
foregoing Codes and Regulations before tendering. He shall also construct the work in
strict accordance with this Specification, working drawings and written instructions
issued by the Employer / Employer’s Representative .
1.2.4
If the Contractor wishes to substitute any other authoritative standard or code of
practice for any listed above he shall submit details of any such together with two
complete copies to the Employer / Employer’s Representative for approval. Approval
for such substitution shall be at the discretion of the Employer / Employer’s
Representative and will not be given unless the Employer / Employer’s
Representative considers the proposed standard or code of practice will give a quality
of finished work equal to or better than the specified standard.
1.2.5
The Employer / Employer’s Representative reserves the right to check the work
constructed by the Contractor, and his setting out at such times as he may deem fit.
There is however no duty on his part to make such checks and any omission by him
to observe errors shall not relieve the Contractor of his responsibilities in these
respects.
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1.3
Preliminary Information from Contractor
1.3.1
The Contractor shall submit the following information on his proposals for the approval
of the Employer / Employer’s Representative before work is commenced.
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
1.4
Bar bending Schedules
1.4.1
1.5
Reinforcement bar bending schedules shall be prepared by the Contractor and
submitted to the Employer / Employer’s Representative on this project as and when
directed.
Use of Concrete
1.5.1
1.6
Source of supply of all aggregates / concrete / bricks / solid & hollow blocks
Source of supply of cement
Source of supply of water
Grading curves for coarse and fine aggregate
Certificate of soundness of cement
Results of tests for organic and inorganic impurities of aggregates and water
Results of tests drying shrinkage of aggregates
Source of supply of reinforcing steel
Test certificates for reinforcing steel
Types of water bars
Types of joint fillers and sealant
Positions of all construction joints
Types of form work
No concrete of any particular mix proportions shall be incorporated into the Works until
all the requirements of this specification have been met in respect of those mix
proportions and have been approved by the Employer / Employer’s Representative .
Approvals
1.6.1
A minimum of 14 working days before construction commences the Contractor shall
supply to the Employer / Employer’s Representative for his approval details of his
proposed layouts of concrete plant and on site workshop, details of form work systems
and construction devices, eg. Cranes, chutes, scaffolding, which he proposes to use for
structural concrete. The information is to be sufficiently detailed to enable the Employer
/ Employer’s Representative to approve or otherwise.
1.6.2
Where the Contractor proposed to use climbing tower cranes or any type of plant
which places any load on the reinforced concrete structure, he must furnish full
details of such plant to the Employer / Employer’s Representative for approval a
minimum 14 days before the work is commenced. If approved by the Employer /
Employer’s Representative, the structure will be strengthened to carry such loads and
the Contractor shall be responsible for any resulting additional design and
construction costs or time incurred. Loads from such plant or equipment shall only be
imposed on such completed storey of the structure where the loaded concrete has
already attained the minimum specified 28 days compressive strength.
1.6.3
The Contractor should note that further approvals are required by the Specification
before construction starts. The Contractor is wholly responsible for obtaining these
approvals and no claim for delays or additional payments will be entertained due to
the Contractors failure to obtain such approvals in adequate time.
1.6.4
Any approval, instructions, permission, checking, review etc. whatsoever by the
Employer / Employer’s Representative , shall not relieve the Contractor of his
responsibility and obligation regarding adequacy, correctness, completeness, safety,
strength, quality, workmanship etc.
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1.7
Contractors Responsibility and Defects
1.8
1.7.1
The Contractor shall furnish all skilled and unskilled labour, plant, equipment,
scaffolding, all materials etc. required for complete execution of the work in accordance
with the drawings and as described herein and / or as directed by the Employer /
Employer’s Representative .
1.7.2
The fact that the Contractor has used materials, etc. to the approval of the Employer /
Employer’s Representative shall in no way relieve the Contractor of his responsibilities
of producing a concrete of the required minimum strength, workability, shrinkage
characteristics etc. for the purpose to which it is put.
1.7.3
Any defects due to materials and workmanship not being in accordance with this
specification shall be made good to the satisfaction of the Employer / Employer’s
Representative by the Contractor at the Contractor’s own expense.
1.7.4
The Contractor shall be responsible for making good to the satisfaction of the
Employer / Employer’s Representative any damage to the permanent structure which
may be caused by his plant.
1.7.5
If the Contractor desires to leave any permanently embedded supports for his
shuttering, etc. in the concrete, he must furnish in writing exact details of his
proposals and approval must be obtained from the Employer / Employer’s
Representative
Source of Supply
1.8.1
1.9
The Contractor shall not alter the source of supply of any material from that initially
approved by the Employer / Employer’s Representative without the prior written
permission of the Employer / Employer’s Representative .
Supervision
1.9.1
1.10
The Contractor shall employ competent personnel whose first duty will be the
supervision of all stages of mixing, placing and site testing of all concrete and for the
supervising of the preparation of cubes for testing.
Safety and Site Conditions
1.10.1 The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the safety code and the
provision of the safety rules as specified in the General Conditions of the Contract for
ensuring safety of men and materials and in the event of an accident shall hold the
Employer blameless.
1.11
Quality Control
1.11.1 Reference shall be made to the accompanying General Specification for Quality
Control Requirements
1.11.2 The Contractor shall submit to the Employer / Employer’s Representative , within 14
days of award, a Quality Manual in accordance with ISO 9001. The Quality Manual
shall outline the Quality Control measures that the Contractor shall put in place to
carry out the Works and shall include the Quality Control of the Sub-contractors. The
Quality Manual shall include a Project Quality Plan. The Quality Manual shall be
reviewed by the Employer / Employer’s Representative and, upon acceptance, shall
be implemented by the Contractor.
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1.11.3 The Contractor shall submit to the Employer / Employer’s Representative , within 14
days of award, a list of the Quality Control Personnel proposed for the Works and
shall outline roles and responsibilities. Staff listed shall include the Employer, Quality
Control Superintendent and Project Foreman. If, for some reason, a person so listed
is unable to fulfill their role in this Works, then the Contractor shall find an equivalently
qualified person to fill that vacancy. Details of the proposed replacement shall be
submitted to the Employer / Employer’s Representative s before.
1.11.4 The Contractor shall establish, document and maintain an inspection and testing
system capable of producing objective evidence that the Works conform to the
Specification, whether carried out by the Contractor or his sub-contractors, or
procured from vendors. A summary of this system shall be included in the Quality
Manual.
2.0
MATERIALS
2.1
General
2.1.1
All materials shall conform to the requirements laid down in this section the Indian
Construction Regulations and the relevant current Indian Standards, and also subject
to the satisfaction and approval of the Employer / Employer’s Representative . The
Contractor shall maintain a current copy of all such regulations and standards on site
for the use of the Employer / Employer’s Representative .
2.1.2
After specific materials have been accepted, the source of supply of such materials
shall not be changed without prior approval of the Employer / Employer’s
Representative .
2.1.3
Any material considered being sub-standard, or not upto satisfaction of the Employer
/ Employer’s Representative , shall not be used by the Contractor and shall be
removed from the site immediately.
2.1.4
Representative samples shall be procured by the Contractor and submitted to the
Employer / Employer’s Representative for approval before bulk procurement. The
approved representative samples shall be retained by the Employer / Employer’s
Representative for future comparison and reference.
2.1.5
The Employer / Employer’s Representative shall have the right to inspect the sources
of materials, method of procurement and storage of materials, quality control
procedures, etc.
2.1.6
Generally, all materials shall be stacked and stored by the Contractor as described in
IS: 4082 unless otherwise mentioned and in a manner affording convenient access
for identification and inspection at all times. The storage area and arrangements
shall be subject to the approval of the Employer / Employer’s Representative . Any
material rendered unserviceable during the Contractor’s custody, shall be replaced or
repaired by the Contractor as determined by the Employer / Employer’s
Representative .
2.1.7
All materials shall be as stored as to prevent deterioration or intrusion of foreign
matter and to ensure the preservation of their quality and fitness for the work. Any
material which has deteriorated or has been damaged or is otherwise considered
defective by the Employer / Employer’s Representative , shall not be used and shall
be removed immediately and the cost thereof, shall be realized from the Contractor’s
dues. The Contractor shall maintain up to date accounts of receipts, issue and
balance (stock wise) of all materials.
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2.2
Cement
2.2.1
Type of Cement
2.2.1.1 The cement used shall be any of the following with prior approval of the
Employer / Employer’s Representative .
I. High strength ordinary Portland cement (Grade 43) conforming to IS:
8112.
II. Portland Pozzolana cements conforming IS: 1489.
III. Portland slag cements conforming to IS: 455.
2.2.2
2.2.3
2.2.1.2
Unless otherwise specified ordinary Portland cement of 43 grade conforming
to latest IS - 8112 shall be used for all concrete works.
2.2.1.3
Ordinary Portland cement (53 Grade) conforming to IS : 12269 shall be
used for important concrete works and wherever higher grade of concrete
is specified.
2.2.1.4
White or coloured Portland cement shall comply with physical requirements
of IS 8112 and pigments shall be inorganic oxide pigments, either natural
or synthetic in origin complying with the requirements of BS : 1014
Pigments whether added just before mixing or by the cement manufacturer
shall only be incorporated in the proportions approved.
2.2.1.5
Supersulphate and high alumina cement shall not be used in any part of
the works unless specified.
Certification and Testing of Cement
2.2.2.1
The Contractor shall obtain a manufacturer’s certificate of test in accordance
with the appropriate standard for each consignment of cement delivered to
the site and shall immediately forward these certificates to the Employer /
Employer’s Representative for his retention.
2.2.2.2
Not withstanding the manufacturer’s certificate the Employer / Employer’s
Representative may require that any cement delivered to the site, or
elsewhere for use in the works, shall be sampled and tested. Any batch of
cement so tested which fails to comply with this specification will be
rejected. The cost of any such testing shall be borne by the Contractor.
Delivery and Storage of Cement
2.2.3.1 Cement of different types and manufacture shall not be mixed one with
another. Cement shall be transported to site in covered vehicles adequately
protected against water. All cement shall be delivered to the Site or elsewhere
for use in the Works in the original sealed bags of the manufacturer or in
approved bulk containers.
2.2.3.2
The Contractor shall make his own arrangements for the storage of
adequate quantity of cement and all cement shall at all times be protected
from deterioration. Cement, unless delivered in bulk,
shall be stored and neatly stacked in piles not exceeding 10 bags high in
weather proof closed sheds well away from walls, the floor of which shall
be with raised wooden plank flooring
to prevent deterioration by
dampness or intrusion of foreign matter, Storage under tarpaulins shall not
be permitted. Cement delivered in bulk shall be stored in a weather proof
silo.
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2.2.4
2.2.3.3
Each consignment of cement shall be clearly identified, stored separately
with clear identifiable stack number and used in chronological order of
receipt ie. the first received being first used.
2.2.3.4
Daily record of cement received and consumed shall be maintained by the
Contractor in an approved form and a copy submitted to the Employer /
Employer’s Representative once a week.
Inspection of Cement
2.2.4.1 Any cement which, upon inspection, is considered by the Employer /
Employer’s Representative to have deteriorated in any way will be rejected.
2.2.4.2
Any type and grade of cement more than 3 months old shall invariably be
tested to ascertain that it satisfies the acceptability requirements.
2.2.4.3 All cement rejected for any cause shall be removed from the site i immediately.
2.2.4.4 Bulk cement shall be used only if the Employer / Employer’s Representative ’s
approval in writing has been obtained. Bulk cement shall conform in all
respects to the relevant clauses above. Automatic weighing equipment shall
be used for weighing the cement to be added to each batch.
2.2.5
2.3
Cement for use in all concrete floor slabs and beams shall be obtained from a single
source to maintain uniformity of colour.
Aggregates for Concrete
2.3.1
Type of Aggregates
2.3.1.1 Aggregates mean both coarse and fine inert materials used in the preparation
of concrete. Aggregates shall consist of natural sands, crushed stone and gravel from
a source known to produce satisfactory aggregate for concrete complying with IS: 383
and shall be chemically inert, clean, hard, strong, durable against weathering of limited
porosity and free from such quantities of deleterious materials as may cause corrosion
of reinforcement or may impair the strength and / or durability of the concrete.
Additionally, the flakiness index when determined by the sieve method described in IS
2386 shall not exceed 35 for any size of concrete aggregate. Total percentage of all
deleterious materials, including coal, lignite, clay lumps, materials finer than 75 microns,
soft fragments and shale but excluding mica shall not exceed 5%. However, for
crushed fine aggregate, total percentage of coal and lignite and clay lumps, shall be
limited to 2%.
2.3.1.2 Aggregates shall not contain water soluble sulphur trioxide in excess of 0.1%
2.3.1.3 The chloride ion content of the fine and coarse aggregate shall not exceed
0.06% and 0.02% respectively by mass of dry aggregate. If either aggregate
exceeds these limits the material may still be
considered acceptable by the Employer / Employer’s Representative provided
that the total chloride ion concentration derived from the aggregates is not
greater than 0.35% by mass of the cement in the mix.
2.3.1.4 All aggregates shall comply with IS – 2386 and IS 383 in respect of impurities
and additionally with the following
a)
Absorption
6% maximum by weight for ordinary construction
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Part 1 ( c ) Technical Specification
2% maximum for water proof construction
b)
Salt
1% maximum (equivalent anhydrous calcium percentage by weight of
cement).
c)
Shell
8% maximum by weight
d)
2.3.1.5
Carbonates
10% maximum by weigh
The drying shrinkage of the aggregates measured in accordance with IS :
2386 shall not exceed.
a)
0.06% for general purpose concrete
b)
0.04% for pre-cast concrete, concrete for special purposes and water
proof concrete.
2.3.1.6
For reinforced concrete work, aggregates conforming to IS:383 & IS:2386
having a maximum size of 20 mm shall be used. For certain reinforced
concrete works, aggregates having a maximum size other than 20 mm size
shall also be used as called for in the drawings. However, for lean concrete
provided as mud mat below structural concrete, maximum size upto 40 mm
shall be used.
2.3.1.7
Aggregates (coarse or fine) with a specific gravity below 2.6 shall not be
used without special permission of the Employer / Employer’s
Representative . Sand and crushed rock shall be prepared for use by such
screening or washing, or both, as necessary to remove all objectionable
foreign matter at contractors cost.
2.3.1.8
Fine Aggregate: Fine aggregate shall mean aggregate which pass through
IS Sieve 4.75 mm (3/16 B.S.) test sieve to IS: 2430, leaving a residue not
more than 5% and shall conform to IS : 383. It shall be sand from a natural
source approved by the Employer / Employer’s Representative . Machinemade sand will be acceptable provided the constituent (rock/gravel) is
sound, hard, dense and is acceptable to the Employer / Employer’s
Representative . Sand containing any trace of salt shall be rejected. The
fine aggregate for concrete shall be graded within limits as specified in
Table – 1 of IS : 383 -1970 and the fineness modules shall range between
2.60 to 3.20.
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Table – 1
IS Sieve
Designation
2.3.1.9
Grading
Zone I
Percentage Passing
Grading Grading
Zone II Zone III
Grading
Zone IV
10 mm
100
100
100
100
4.75 mm
90 - 100
90 - 100
90 - 100
95 - 100
2.36 mm
60 - 95
75 - 100
85 - 100
95 - 100
1.18 mm
30 - 70
55 - 90
75 - 100
90 - 100
600 Micron
15 - 34
35 - 59
60 - 79
80 - 100
300 Micron
5 - 20
8 - 30
12 - 40
15 - 50
150 Micron
0 - 10
0 - 10
0 - 10
0 - 15
Coarse Aggregate : Coarse aggregate shall mean aggregate of which not
less than 95% by weight is retained on a 4.75 mm mesh IS test sieve to IS :
2430 and shall conform to Table – 2 of IS : 383 – 1970 It shall be
obtained from crushed granite, trap, basalt or similar approved stones from
approved quarry. Coarse aggregate shall be chemically inert when mixed
with cement and shall be angular in shape and free from soft friable thin
porous laminated or flaky pieces. It shall be free from dust and other
foreign matter. Unless otherwise specifically stated, for all RCC works the
size of coarse aggregate shall be 20 mm and down size.
Table – 2
IS Sieve
Desig-nation
A
% Passing for single sized aggregate of
nominal size
63 mm
40
20
16
12.5
10
mm
mm
mm
mm mm
B
% Passing of graded
aggregate of nominal size
40
20
16
12.5
mm
mm mm
mm
80 mm
100
-
-
-
-
-
100
-
-
-
63 mm
85 - 100
100
-
-
-
-
-
-
-
-
40 mm
0 - 30
85 100
100
-
-
-
95 100
100
-
-
20 mm
0-5
0-20
85 100
100
-
-
30 70
95 100
100
100
16 mm
-
-
-
85 100
100
-
-
-
90 100
-
12.5 mm
-
-
-
-
85 100
100
-
-
-
90 100
10 mm
0-5
0-5
0-20
0-30
0-45
85 100
1035
2555
3070
40-85
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IS Sieve
Desig-nation
B
% Passing of graded
aggregate of nominal size
40
20
16
12.5
mm
mm mm
mm
4.75 mm
-
-
0-5
0-5
0-10
0-20
0-5
0-10
0-10
0-10
2.36 mm
-
-
-
-
-
0-5
-
-
-
-
2.3.2
2.3.3
2.3.4
A
% Passing for single sized aggregate of
nominal size
63 mm
40
20
16
12.5
10
mm
mm
mm
mm mm
2.3.1.10
Between the limits specified for coarse and fine aggregates the
grading shall be such as to produce dense concrete of a consistency,
which will work into position without segregation, and without the use
of excess water content.
2.3.1.11
Aggregates for water proof concrete shall be non-porous not subject to
internal movement, change in volume, shape or structure and suitable
in every respect for use in water proof concrete.
2.3.1.12
Lightweight aggregate shall be 5mm exfoliated vermiculite or similar
material approved by the Employer / Employer’s Representative
Approval of Aggregate
2.3.2.1
A minimum of 14 working days before the commencement of any concrete
work, the Contractor shall forward to the Employer / Employer’s
Representative for approval, details of his proposed source of supply of
aggregates giving the aggregate group classification and typical physical
properties as required by IS : 383.
2.3.2.2
The Employer / Employer’s Representative shall be given advance notice of
any alteration in the source of supply of aggregate.
Certification of Aggregates
2.3.3.1
The Contractor shall provide the Employer / Employer’s
Representative with a certificate for his retention at such regular
intervals as the Employer / Employer’s Representative may prescribe
from time to time showing that all aggregates have been re-tested
since the date of the last such certificate and showing that they
continue to comply with the requirements of this specification.
2.3.3.2
Samples of aggregates of different sizes or types shall be sent to an
approved laboratory for testing prior to the commencement of any
concrete works. The cost of such testing shall be borne by the
Contractor.
2.3.3.3
Not withstanding any certificate of compliance the Employer /
Employer’s Representative may at any time require that any
aggregate delivered to the site, or elsewhere for use in the works be
sampled and tested. Any aggregate so tested which fails to comply
with this specification will be rejected.
Delivery and Storage of Aggregates
2.3.4.1 No deliveries in bulk shall be commenced until the Contractor has
demonstrated to the satisfaction of the Employer / Employer’s
Representative that the samples comply with this specification.
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2.3.4.2 The samples approved by the Employer / Employer’s Representative shall
be representative of the grading and general quality of the aggregate
delivered during the course of the work.
2.3.4.3 Graded aggregate as recommended / shown in Table 2 in the document,
only shall be used for all R.C.C. Works.
2.3.4.4 Any aggregate, which in the opinion of the Employer / Employer’s
Representative , has become contaminated or does not conform to the
foregoing requirements may be rejected by the Employer / Employer’s
Representative .
2.3.5
Testing of Aggregates
2.3.5.1 Tests shall be carried out on samples obtained from the delivered aggregates
taken at intervals required by the Employer / Employer’s Representative in
accordance with IS : 2386. Tests shall be carried out in the presence of the
Employer / Employer’s Representative and to the expense of the Contractor.
2.3.5.2 Should a sample fail to comply with any of the tests the Employer / Employer’s
Representative may, at his discretion, either reject the batch from which the
sample was taken, order it to be washed and / or screened, or permit it to be
used with variations in the proportions or the concrete mixes specified. Any
batch of aggregate rejected by the Employer / Employer’s Representative shall
be removed from site forthwith.
2.3.6
Grading Aggregate
2.3.6.1 Aggregates will be subjected to sieve analysis to IS: 2386, and the limits of
acceptance are as shown in Table 1 and 2 in the document. The Employer /
Employer’s Representative may require further analysis to be made if there is
any alteration in the type of aggregate. The cost of any such analysis is to be
borne by the Contractor.
2.3.6.2 The Contractor is to provide a set of IS sieves and weighing equipment with
accuracy to 0.5% of the mass of test sample and carry out sieve analysis to IS :
2386 on site as required by the Employer / Employer’s Representative at the
expense of the Contractor.
2.3.6.3 The Contractor shall carry out sieve analysis for coarse and fine aggregates at
the minimum of one per week at each stockpile. At the start of the contract,
sieve analysis should be taken twice per week at each stockpile until the
consistency of grading is evident and agreed by the Employer / Employer’s
Representative .
2.4
Water and Ice for Concrete
2.4.1
Water for use in mixing and curing concrete shall be clean, fresh and free from
injurious amounts of oils, acids, alkalis, sugar, organic materials or other substances
that may be deleterious to concrete or steel. Potable water is generally considered
satisfactory for mixing concrete. The maximum permissible values of impurities shall
be as given in clause no. 5.4 of IS: 456 - 2000. Water storage tanks shall be covered
to the satisfaction of the Employer / Employer’s Representative to prevent
contamination.
2.4.2
In case of doubt regarding development of strength, the suitability of water for making
concrete shall be ascertained by the compressive strength and initial setting time
tests specified in IS:456.
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2.5
2.4.3
The Employer / Employer’s Representative may require that any water be sampled and
tested at the expense of the Contractor by the method given in IS: 3025. Water failing
the criteria given in the appendix to IS: 3025 will be rejected.
2.4.4
The Contractor shall produce test results of water proposed to be used on the job for
approval by the Employer / Employer’s Representative before using for concrete
works.
2.4.5
Water for use in mixing with cement shall neither be hotter than 25oC nor colder than
5oC at the time of mixing.
2.4.6
Wherever temperature controlled concrete is specified, the Contractor may establish an
ice making plant of required capacity at site.
Measures for Controlling Alkali – Aggregate Reaction
2.5.1
Measures to control the occurrence of alkali-aggregate reaction (AAR) in concrete shall
be submitted to the Employer / Employer’s Representative for approval. In the absence
of alternative proposals, such control shall be achieved by limiting the reactive alkali
content of the concrete as described in clauses 2.5.2 to 2.5.4 below unless in the
opinion of the Employer / Employer’s Representative the concrete element will not be
subjected to moisture ingress throughout its design life.
2.5.2
The reactive alkali of concrete expressed as the equivalent sodium oxide per cubic
metre of concrete shall not exceed 3.0 kg.
2.5.3
The equivalent sodium oxide (Na2O) content of the concrete shall be determined in
accordance with the following steps :
The equivalent Na2O shall be calculated by the expression :
Equivalent Na2O = A + B + C
Where;
A
is the sum of the acid-soluble alkalis (expressed as equivalent Na2O) of
cement, admixture and water
B
is equal to 1/6 the total alkalis of pulverised fuel ash (PFA) (expressed as
equivalent Na2O) and
C
is equal to 0.76 times the chloride ion (Cl) of the aggregate
2.5.3.2
The acid-soluble alkali content of the cement shall be determined in
accordance with IS : 4032 and shall be taken as the average of the latest 25
daily determination of equivalent sodium oxide plus twice the standard
deviation of the results.
2.5.3.3
The acid soluble alkali content of admixtures shall be determined in
accordance with IS : 4032.
2.5.3.4
The acid-soluble alkali content of water shall be determined in accordance
with American Public health Association (APHA) 17 ed. 1989) Sections 3500K and 3500-Na.
2.5.3.5
The total alkali content of the PFA shall be determined in accordance with IS
: 4032 and shall be taken as the average of 25 weekly determination plus
twice the standard deviation of the results.
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2.5.3.6
2.5.4
The equivalent sodium oxide content of the coarse and fine aggregates shall
be calculated from the quantity of chloride ion present measured in
accordance with IS : 2386.
Test Certificates and Calculations
2.5.4.1
The following particulars of the concrete mix should be submitted by the
concrete supplier to the Employer / Employer’s Representative .
a)
2.6
Calculation of the reactive alkali of the proposed mix.
Admixtures
2.6.1
No admixtures of cements containing additive shall be used in concrete unless
specified or approved by the Employer / Employer’s Representative . Such approval
will not be given unless in the Employer / Employer’s Representative ’s opinion specific
benefit to the density or quality of the concrete will result. Additives so approved shall
be used strictly in accordance with the manufacturer’s recommendations and written
instructions. Admixtures should not have detrimental effect on reinforcement.
2.6.2
The Contractor shall obtain the written approval of the Employer / Employer’s
Representative for use of additives if they differ from those specified by the Employer /
Employer’s Representative , and their use is proposed by the Contractor but not
specified by the Employer / Employer’s Representative .
2.6.3
The Contractor shall submit the following details of any admixtures or cement
containing additives for approval before using :
Brand name and manufacturer’s literature
Proposed dosage and detrimental effects, if any, of under dosage and/or over dosage
Method of adding to the concrete mix and
Details of the Chloride content
2.7
2.6.4
The chloride ion content of admixtures for concrete containing embedded metal or for
concrete containing sulphate resisting Portland cement shall not exceed 2% by mass of
admixture or 0.03% by mass of the cementitious content, whichever is the less.
2.6.5
Calcium chloride as accelerating admixture is not permitted to be used other than in
mass concrete works.
2.6.6
Where the use of admixtures is specified or approved they shall comply with the
requirements of IS: 9103 and shall be of proven make and from a reputed
manufacturer.
2.6.7
The Contractor shall produce latest test results carried out at approved Government
Test Houses for the approval of the Employer / Employer’s Representative , before use.
2.6.8
Approved admixtures shall be stored in water tight weatherproof containers clearly
marked to show the contents.
Steel bar Reinforcement
2.7.1
Refer separate specification given elsewhere.
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2.8
Joint Fillers and Sealants
2.8.1
Joint fillers shall be preformed and of a proprietary brand in accordance with the
drawings or similar approved by the Employer / Employer’s Representative and shall be
placed in accordance with the manufacturer’s recommendations and written
instructions.
2.8.2
Joint sealants shall be as described in the drawings, or similar approved by the
Employer / Employer’s Representative and shall be used strictly in accordance with the
manufacturer’s recommendations and written instructions.
2.8.3
Poured joint sealing compound shall be a hot poured rubber bitumen compound complying with
the requirements of IS: 1580 or BS: 2499 unless otherwise specified.
2.9
Water Stops
2.9.1
2.9.2
2.9.3
2.10
Water stops shall be either metallic like copper or non-metallic like PVC.
Water stops shall be preformed and of a proprietary brand in accordance with the
drawings, or similar approved by the Employer / Employer’s Representative .
Water stops shall be used at all construction joints in Water Tanks or other structures
designated water proof concrete.
Curing Compounds
2.10.1 Concrete curing compound for structures shall be a liquid resin or wax-resin base
membrane curing compound of an approved proprietary brand. It shall have a
minimum curing efficiency of 75% and shall contain a fugitive dye.
2.10.2 Aluminised curing compound shall, when applied at the rate of approximately 0.25 litres
/ m2 by a mechanical sprayer with low pressure fine spray, become stable and
impervious to evaporation of water from the concrete surface within 60 minutes after
application.
2.10.3 The curing compound shall contain sufficient flake aluminium in finely divided
dispersion to produce a complete coverage of the sprayed surface with a metallic finish.
The curing compound shall not react chemically with the concrete to be cured and shall
not crack, peel or disintegrate within three weeks after application.
2.10.4 Concrete curing compound for carriage ways shall be a non-pigmented liquid resin or
wax-resin base membrane curing compound of a proprietary brand. It shall achieve a
96% efficiency index and shall be available both with and without a fugitive dye.
2.10.5 The Contractor shall supply test certificates, prepared by an approved testing
laboratory, to show that the compound will provide the required curing efficiency.
2.10.6 Curing compounds shall not be detrimental to the applied finish and surface treatments
specified on the drawings.
2.11
Damp-proof Membranes
2.11.1 Damp-proof Membranes (DPM) generally for use below non-suspended ground floor
slabs, shall be 1200 gauge (0.3mm) polythene sheet complying with Packaging and
Industrial Film Association Standard 6/83 and shall be laid and jointed in strict
accordance with the manufacturers printed instructions.
3.0
CONCRETE - WORKMANSHIP
3.1
Steel Reinforcement
3.1.1
Refer separate specification given elsewhere.
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3.2
Form work and False work
3.2.1
Type of Form work
3.2.1.1 Form work shall include all temporary or permanent forming for the concrete,
together with all temporary construction required for its support.
3.2.1.2 False work shall include any temporary structure used to support a permanent
structure during its erection and until it becomes self-supporting.
3.2.1.2
The Contractor shall be responsible for the design, stability, supply, fixing,
alignment and safe removal of all form work, false work and supports in
accordance with BS: 5975 or corresponding IS code. Strutting shall be so
arranged that it can be removed without undue shock to the concrete. The
Contractor shall submit the design of false work and form work to the
Employer / Employer’s Representative for approval before construction. In
the case of folded plates and shell roofs the Contractor should take approval
for the pattern of centering and shuttering along with programme for deshuttering.
3.2.1.4 The Contractor shall construct form work and false work to support safely the
worst combined effects of all loads as given below so that the final concrete
structure is within the limits of acceptable dimensional tolerances and without
causing bulging or deflection:
a)
Total weight of form work, reinforcement and wet concrete
b)
Construction loads, including dynamic effects of placing, compacting
and construction traffic and
c)
Wind loads
3.2.1.5 All form work shall be watertight and so constructed that there shall be no loss
of material from the concrete. After the concrete has hardened and the form
work has been removed, the concrete shall be in the position and of the
shape, dimensions, and surface finish described in this specification or on
the drawings.
3.2.1.6 The form work shall so designed and positioned that can be removed without
damage to concrete. In the case of beams, slabs or like members the form
work shall be so arranged that the sides or edges may be removed without
disturbance to the soffit or propping system.
3.2.1.7
Form work shall compose of steel, best quality wood or non-absorbent type
plywood. Timber shall be free from significant knots and shall be of
medium grain as far as possible and hard woods shall be used as caps and
wedges under or over posts. Timber shall be well seasoned, free from sap,
shakes, worm holes, warps or other surface defects and shall have smooth
finish.
3.2.1.8
Staging, unless specified otherwise, shall generally be of mild steel tubes,
steel beams and channels etc.
3.2.1.9
Plywood shall be used in exposed surfaces (fair faced finish specified) as
shown on drawings or as directed by the Employer / Employer’s
Representative where a specially fair faced finish is required. Such
surfaces shall be formed using approved brand of heavy quality water
resistant plywood to produce a perfectly levelled, uniform and smooth
surface.
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3.2.1.10 Form work for Engineer-in-Chargeural shapes for columns, ring beams,
circular or spherical walls, shell roofs or bottoms in the case of water
reservoirs or any other structure shall be made from approved plywood or
steel plates and frames.
3.2.1.11 Form work composed of steel and or approved good quality (seasoned)
wood may be used in places where ordinary surface finish in required,
plywood shuttering can also be used by the Contractor.
3.2.1.12 The staging shall be true and rigid and thoroughly braced in both directions
as well as cross braced, strutted and propped such that it will not deform
unduly under weight of concrete and other loads due to men, equipment,
etc. Vertical member or props should not be supported on an un-propped
lower suspended floor or beam unless it is ensured by the Contractor that
the lower floor or beam can safely carry the loads. No propping shall take
place until the Employer / Employer’s Representative ’s approval has been
given to the Contractor’s scheme submitted along with supporting
calculations.
3.2.1.13 To achieve the desired rigidity, ample studs, braces, bolts, spacer blocks,
wires, clamps, ties, straps, shores, etc. shall be used to hold the form in
proper position without undue distortion.
3.2.1.14 Temporary openings for cleaning, inspection and for pouring concrete shall
be provided at the base of vertical forms and at other places, where these
are necessary and as may be directed by the Employer / Employer’s
Representative . The temporary openings shall be so formed that they can
be conveniently closed rigidly when required and must not leave any mark
on the concrete.
3.2.1.15 Provision shall be made for traffic on form work not to bear directly on
reinforcing steel.
3.2.2
3.2.1.16 The mould used for manufacturing precast components normally consist of
two parts, (a) bottom mould and (b) side moulds. The bottom mould can be
made out of timber, masonry, concrete, steel FRP, plastic or any other
material acceptable to the Employer / Employer’s Representative . The
side moulds similarly can be of timber, steel FRP, or plastic. When using
masonry or concrete moulds, the top surface shall be finished to the
required accuracy and made smooth.
3.2.1.17 In case of masonry moulds, the use of chicken mesh or fibre
reinforcements in the top surfaces will help in making the mould last longer
for higher efficiency.
3.2.1.18 In the case of cored units can be created either by an extrusion process, by
inflated tubes, Mild steel tubes, timber, cardboard / hard paper or any other
materials.
Pre-cambering of Form work
3.2.2.1 In general, and unless otherwise shown or specified in the contract, all form
work for beams and slabs shall be set with an upward camber at mid span of 2
mm per 1.0m of span for all spans in excess of 5.0 m. Cantilevers shall be set
with an upward camber at end of span of 4mm per 1.0m. Pre-camber of 40
mm at mid span of flat slab shall be provided.
3.2.3
Joints in Form work
3.2.3.1 All joints in form work shall be either horizontal or vertical, end form work being
square across the mass of concrete. The design of the form work shall permit
it to be struck and removed without injury to the concrete. The joints shall be
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sufficiently tight to prevent any leakage of mortar.
3.2.3.2 The Contractor shall use grout checks at all horizontal construction joints and
shall adopt such other approved expedients, eg. foam rubber sealing strips,
polyester crack filler in joints, or taping of joints, as may be necessary to obtain
satisfactory results at joints in form work.
3.2.4
Internal Metal Ties for Form work
3.2.4.1 Where internal metal ties are permitted they or their removable parts shall be
extracted without damage to the concrete and the remaining holes shall be
carefully pressure grouted using epoxy grout. No permanently embedded metal
part shall have less cover than that indicated for adjacent steel reinforcement.
3.2.4.2 Internal metal ties in fair faced concrete work shall be arranged in an
approved neat, regular, consistent pattern throughout the work.
3.2.5
3.2.4.3
Details of internal metal ties shall be submitted to the Employer / Employer’s
Representative for approval well in advance prior to their use in the works.
3.2.4.4
The Employer / Employer’s Representative may at his discretion allow the
Contractor to use tie-bolts running through the concrete and the Contractor
shall decide the location and size of such tie-bolts in consultation with the
Employer / Employer’s Representative . Holes left in the concrete by these
tie-bolts shall be filled as specified by the Employer / Employer’s
Representative at no extra cost. No through tie will be permitted in all liquid
/ earth retaining walls / slabs, basement walls etc.
Holes in Form Work
3.2.5.1 When holes are to be provided in form work for pipes, weep holes and the like
they shall be neatly trimmed to fir the pipe and caulked with an approved material to
form a grout-tight joint.
3.2.6
Sloping Form Work
3.2.6.1 When concrete is to be deposited to a steeper slope than 15o from the
horizontal top forms shall be used to enable the concrete to be properly compacted.
3.2.7
Cast in Pipes / Sleeves
3.2.7.1 Where required in external walls, retaining walls and like structural elements,
cast in pipes and sleeves shall be fixed securely in place and shall be provided with
puddle flanges and hydrophilic caulking compounds as specified on the drawings.
3.2.7.2
3.2.8
The Contractor shall fix pipe sleeves and inserts or box out to form holes and
chases to specified size and incorrect positions before placing concrete.
Hardened concrete shall not be cut to provide holes or chases without prior
approval. Where reinforcement passes through form work, the form work
shall be designed and constructed to maintain the reinforcement in it correct
position and to minimise leakage of concrete or grout.
Approval of Form Work
3.2.8.1 For each concrete pour requiring form work propping, the Contractor shall
submit to the Employer / Employer’s Representative , well in advance prior to
commencement of form work and propping, details and / or calculations of all proposed
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form work and props, along with a detailed programme of the work. Such approval, if
given, shall in no way relieve the Contractor of his responsibility for the safety or
adequacy of such form work for its purposes.
3.2.9
Coating of Form Work
3.2.9.1 The inside surface of forms, except for permanent form work, or unless
otherwise agreed by the Employer / Employer’s Representative , shall be
coated with an approved material to prevent adhesion of the concrete.
3.2.9.2
Surface retarders or release agents shall not be used without prior approval.
Release agents shall not be used where surface treatments require bonding
adhesives to be applied.
3.2.9.3
Mould oils or release agents shall be of a type, which will have no adverse
effect to concrete and on any finishes to be applied to the concrete or on the
appearance of fair faced concrete. Release agents shall be applied strictly in
accordance with the manufacturer’s instructions and shall not come into
contact with reinforcement or pre-stressing tendons. Different release agents
shall not be used in form work to concrete, which will be visible in the finished
works.
3.2.9.4
Care should be taken that mould oils or release agents do not accumulate at
the bottom of form work. If the form work is not used within 24 hours, a
further coat of mould oil or release agent shall be applied before casting the
concrete.
3.2.10 Cleaning of Form Work
3.2.10.1 All rubbish, particularly chippings, shavings and sawdust, shall be removed
from the interior of all form work immediately before concrete is placed. In the case of
deep sections an opening shall be left at the base to enable such cleaning to be
adequately completed.
3.2.10.2 The Contractor shall provide compressed air jet and / or a water jet free from
any oil or other contamination for the cleaning of form work.
3.2.11 Inspection of Form work
3.2.11.1 Concreting shall not commence until the Employer / Employer’s
Representative has had an opportunity to inspect the form work and any enclosed
reinforcement and given his approval to commence concreting.
3.2.11.2 The erection, casing and striking of the form work shall be done under the
personal supervision of a competent foreman.
3.2.12 Stripping of Form Work
3.2.12.1 Form work shall be stripped with the approval of the Employer / Employer’s
Representative at such a time and in such a manner without disturbing,
damaging or overloading the finished concrete work or the structure.
3.2.12.2 The Contractor shall inform the Employer / Employer’s Representative before
removal of any form work. The time at which the form work is removed shall
be the Contractor’s responsibility subject to the minimum periods between
completion of any concreting and removal of forms as given below :
3.2.12.3 In normal circumstances forms shall not be released until the concrete has
achieved a strength of at least twice the stress to which the concrete may be
subjected as the time of removal of form work in accordance to clause no.
11.3 of IS:456-2000
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Table – 3
Minimum Period
Before striking
formwork
Type of Formwork
a) Vertical formwork to columns,walls,beams
16 – 24 h
b) Soffit formwork to slabs ( props to be refixed immediately after removal of
formwork)
3 days
c) Soffit formwork to beams ( props to be refixed immediately after removal of
formwork)
7 days
d) Props to slabs:
7 days
1) Spanning upto 4.5 m
14 days
2) Spanning over 4.5 m
e) Props to beams and arches:
14 days
1) Spanning upto 6.0 m
21 days
2) Spanning over 6.0 m
For other cements and lower temperature, the stripping time recommended above may be suitably
modified.
3.2.12.4
Adverse weather conditions or different cement may cause the above periods
to be increased. Should the Contractor wish to reduce these striking times, he
must satisfy the Employer / Employer’s Representative that the strength of the
concrete at such time and the structural system is adequate to withstand the
dead and imposed loads applied to it. Before reducing the striking times the
Employer / Employer’s Representative ’s agreement shall be obtained in
writing.
3.2.12.5 In case of special structures, such as shells, folded plates, etc., the sequence
of removal of forms shall be as per drawings or as directed by the Employer /
Employer’s Representative .
3.2.12.6
In case of cantilever slabs, the removal of forms shall begin from the outer
edge and proceed towards the support, where as in the case of slabs
supported on two/four sides, the removal of forms shall begin from centre to
supports. Form work to cantilevers shall be removed only with the approval
of the Employer / Employer’s Representative.
3.2.12.7
Form work props shall be positioned between permanent supports such that
the members are supported at maximum 3m centres in both directions.
3.2.12.8
When, in the opinion of the Employer / Employer’s Representative , the striking
of form work should be detrimental to or may prejudice the safety of the
structure, the form work shall be left in.
3.2.12.9
The Contractor shall be responsible for the demolition and re-concreting of any
damaged or defective work howsoever caused at his own expense. The use of
epoxy for bonding fresh concrete shall be carried out as directed by the
Employer / Employer’s Representative at no extra cost.
3.2.12.10
If the props are to be left in place whilst the soffit forms to slabs and beams are
to be removed, the props shall be so designed as to remain in position
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throughout the striking process without having to be temporarily removed. The
use of props designed so that a few can be taken away at a time and replaced
immediately shall be subject to the Employer / Employer’s Representative ’s
prior approval.
3.2.12.11
3.2.13
No construction loads shall be supported from any un-shored portion of the
structure under construction. The number of floors requiring propping shall be
as instructed by the Employer / Employer’s Representative according to the
design loads of such floors.
Reuse of Forms
3.2.13.1
The Contractor shall obtain permission for reusing of forms.
Before
reuse, all forms shall be thoroughly scraped, cleaned, all nails and
adhering substances removed, holes and leaks satisfactorily plugged,
joints examined and wherever necessary repaired and inside surfaces
treated as specified herein before.
3.2.13.2
Form work materials shall be cleaned after use and maintained in good
condition. Any timber which has shrunk, warped or split and any forms
which are damaged to such an extent as to weaken the form or to affect
the quality or appearance of the concrete shall be replaced or repaired. If
the strength and composition of the form work has so far deteriorated due
to repeated uses that in the opinion of the Employer / Employer’s
Representative it will not longer adequately perform its function, then it
shall not be used again and is to be removed from site.
3.2.14
Nominal Cover to Reinforcement
3.2.14.1 Nominal Cover
Nominal cover is the design depth of concrete cover to all steel reinforcement,
including links. It is the dimension used in design and indicated in the drawings. It
shall be not less than the diameter of the bar.
3.2.14.2
Nominal cover to meet durability requirement.
Minimum values for the nominal cover of normal-weight aggregate concrete which
should be provided to all reinforcement, including links depending on the condition of
exposure described given in Table 16 of IS 456 – 2000
Table – 4
Table 16 of IS 456 – 2000 Nominal Cover to Meet Durability Requirements.
Nominal Concrete Cover in mm
Exposure
not less than
Mild
20
Moderate
30
Severe
45
Very Severe
50
Extreme
75
3.3
FORMED FINISHES FOR CONCRETE
3.3.1
General
3.3.1.1
Where a sawn form work finish is specified or in all cases where no
alternative finish is specified, the surface of the concrete shall be not worse
than that obtained by the use of properly designed moulds of close jointed
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swan boards. Small surface blemishes caused by entrapped air will be
permitted but the surface should be free of voids, honey combing or other
defects.
3.3.1.2
3.3.2
Samples of Finishes
3.3.2.1
3.3.3
3.3.4
Should any concrete in the works, in the opinion of the Employer /
Employer’s Representative , fail to match the standard sample in surface
finish then the Employer / Employer’s Representative may for this sole
reason order the removal of all such –substandard concrete which shall be
replaced with acceptable concrete all at the Contractor’s expense.
For all specified finishes apart from sawn form work the Contractor shall
provide a sample panel at least 2.4m x 1.2m in vertical surface area including
a typical horizontal and vertical joint in the form work and the construction
techniques that the Contractor proposes for the actual works. The sample
when approved shall form the standard for the entire works. All unsuccessful
samples shall be removed from the site.
Fair Faced Finish (F1)
3.3.3.1
Where fair faced finish (F1) is specified the irregularities of the finish shall be
no greater than those obtained from the use of wrought thickness square
edged boards. The boards shall be arranged in a uniform patter as specified
or approved.
3.3.3.2
The concrete surface shall be smooth, free from fins, lippings, board marks
or other irregularities and shall be even with sharp true arises. Only very
minor blemishes or voids shall occur and there shall be no staining and no
dis-colouration. The finish is intended to be left as struck and the only
treatment generally permitted is light manual abrasion with a carborandum
stone to remove minor marks. Patching of any description will not normally
be permitted.
3.3.3.3
Isolated blow holes not exceeding 10mm diameter will be permitted, but
otherwise surface is to be free from voids, honey combing or other large
defects. Small defects shall be made good and blow holes filled with mortar
specially mixed to match the colour and texture of the concrete.
3.3.3.4
Abrupt irregularities shall not exceed 2mm.
Rough Board Finish (F0)
3.3.4.1
Where rough board finish (F0) is specified it shall be produced using form
work or form work linings of approved rough textured seasoned wood
boards with moisture content of between 10% and 20%. These boards to be
of varying textures and to be arranged to give uniform overall effect. Boards
shall be assembled to prevent penetration or loss of grout between them.
Gaps greater than 5mm shall be filled. Form work shall be soaked with water
before erecting, and shall be kept damp until concrete is placed. Cover
spacers and bolts shall be positioned to the satisfaction of the Employer /
Employer’s Representative .
3.3.4.2
The number of uses of form work linings will be limited to their ability to
provide the required finish.
3.3.4.3
The finish shall be left as struck. Any blemishes shall not be made good until
inspected by the Employer / Employer’s Representative . After inspection
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minor voids and irregularities on surfaces shall be filled with a matching
mortar to the Employer / Employer’s Representative ’s approval, using a
sponge rubber faced float Discolouration will not be permitted.
3.3.5
Worked Surface Finish
3.3.5.1 The surface of concrete after casting shall be generally be finished level or to
falls as specified with one of the following surface finishes as indicated on the drawings.
3.3.5.2
Type U1 : The concrete shall be uniformly levelled and screeded to produce
a plain surface. No further work shall be carried out to the surface unless it is
to be used as a first stage for a type U2 or U3 finish.
3.3.5.3
Type U2: After the concrete has stiffened sufficiently, the type U1 finish shall
be floated by hand or machine sufficiently just to produce a uniform surface
free from screed marks.
3.3.5.4
Type U3 : When the surface moisture has diappeared and the concrete
stiffened sufficiently to prevent laitance from being worked to the surface, a
Type U1 finish shall be steel trowelled under firm pressure to produce a
dense, smooth uniform surface free from trowel marks.
3.3.5.5
The following methods may also be specified in conjunction with the above to
provided specific qualities of finish.
a)
b)
Wood float to give an even textured surface
Steel trowel or power float to give a smooth un-textured surface
c)
d)
e)
Scratch with a stiff brush to give a slightly roughened even texture
Tamp with the edge of a board to give an even texture of parallel ribs
Other finishes as specified and executed in an approved manner.
3.3.5.6 The Contractor shall not wet the concrete surface to assist working and shall
not add cement to produce the specified finish without the prior approval of the
Employer / Employer’s Representative .
3.4
Construction, Contraction and Expansion Joints
3.4.1
The Contractor shall be responsible for the position and detail of construction joints not
specified in the Contract subject to the Indicative acceptable spacing given in Table 3
(below). Such joints shall be arranged so as to minimise the possibility of the
occurrence of shrinkage cracks.
Table 5 - Indicative Acceptable Spacing of Construction Joints
Element
Maximum Area
(m2)
Minimum
Dimension (m)
Waterproof concrete walls
25
5
Waterproof concrete slabs
100
10
Slabs with major restraint at both ends
100
13
Slabs with major restraint at one end
only
250
20
Slabs with little restraint in any direction
500
30
Walls (other than above)
40
10
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3.4.2
Vertical construction joints shall be properly made to form a vertical grout tight joint.
Where reinforcement passes through the face of the joint the stopping off board shall
be drilled so that the bars pass through, or the board shall be made in sections with half
round indentations in the joint faces for each bar.
3.4.3
Where the Contractor’s proposed construction joints result in alterations to the
reinforcement, he shall provide full revised details for the Employer / Employer’s
Representative s approval a minimum 14 working days prior to commencement of the
works.
3.4.4
The Contractor shall furnish the upper surface of lifts of concrete walls and columns
horizontal and clean the form work of adhering concrete before the next lift is placed.
3.4.6
At all construction joints, both horizontal and vertical, the surface of the previously
placed concrete shall be suitably treated to remove laitance and to expose the coarse
aggregate thus forming an irregular surface key for adjacent concrete. This work shall
be carried out to the satisfaction of the Employer / Employer’s Representative by the
following or other approved methods (in either case the surface shall thoroughly
washed and cleaned after roughening).
a)
After the initial set has taken place but before final set (a minimum period of 4
hours after casting) the coarse aggregate shall be exposed by the use of water
jet and stiff brushing or an air-and-water jet.
b)
After final set has taken place (a minimum period of 4 hours after casting) the
laitance shall be removed and coarse aggregate shall be exposed by bush
hammering taking care not to loosen the aggregate in the face of the concrete
matrix.
3.4.7
The Contractor shall ensure the surface of the construction joint is coated with
approved polymer bonding agent prior to concreting afresh immediately.
3.4.8
At least 72 hours shall be left between completion of concreting one bay and the start
of concreting any adjacent bay.
3.4.9
Panels of walls and slabs shall be cast in such a sequence as to minimise and control
the effect of shrinkage at construction joints.
3.4.10 Form work to construction joints shall be rigid and shall accommodate projecting
reinforcement without bending or displacement.
3.4.11 Where kickers are cast at base of walls and columns, these shall be cast
monolithically with the base slab.
3.4.12 if placing of concrete has to be unexpectedly stopped, the Contractor shall form
construction joints as directed by the Employer / Employer’s Representative .
3.4.13 Contraction joints and Expansion joints shall be formed as detailed where shown on
the Drawings.
3.4.14 Concrete shall not be placed on both sides of Contraction or Expansion joint at the
same time.
3.4.15 Water stops shall be provided at all construction joints in water retaining structures.
The details of all such joints shall be approved by the Employer / Employer’s
Representative .
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3.5
Concrete Mixes
3.5.1
General
3.5.1.1
Reference shall be made to concrete mixes as Nominal mix concrete or
Designed Mix concrete. Nominal mix concrete is denoted by proportions of
cement, fine aggregate and coarse aggregate such as 1:5:10, 1:4:8, 1:3:6 or
1:2:4. The proportion referred to is by weight (mass). Designed mix
concrete is denoted by grade such as M-20,M-25,M-30,M-35 etc. where M
refers to mix and the number to the characteristic strength of concrete in
N/mm2 to be established by 28 days of 15 cm works cube tests. The
particular mix to be used shall be as described in the Contract or on the
Drawings.
3.5.1.2
The characteristic strength of Designed Mix concrete with any type of
cement shall be the 28 days cube strength below which not more than 5%
of the test results are expected to fall.
3.5.1.3
The quality and strength of concrete shall be determined by test on
samples taken on Site from the member during concreting and tested at an
approved Laboratory as directed by the Employer / Employer’s
Representative .
3.5.1.4
The maximum size of aggregate for structural work shall generally be 20
mm. For thin sections and where reinforcement is congested, 10 mm
aggregate may be approved or required. For large sections where the
reinforcement is widely spaced and for mass concrete, 40 mm aggregate
may be approved.
3.5.1.5
The free water / cement ratio will generally be chosen to suit strength and
workability requirements but may be limited by the considerations of
durability given in Table 6 (below).
3.5.1.6
The cement content not including fly ash and blast furnace slag in excess
of 450 kg/m3 should not be used unless special consideration has been
given in design to the increased risk of cracking due to drying shrinkage in
thin sections, or to early thermal cracking and to the increased risk of
damage due to alkali silica reactions.
Table – 6
Table 5 of IS 456 – 2000 Minimum Cement Content, Maximum Water- Cement Ratio and
minimum Grade of Concrete for Different Exposures with Normal Weight Aggregate of 20mm
and Nominal Maximum size
S.No
Exposure
Minimum
Cement
Content
Kg/m3
i)
ii)
iii)
iv)
v)
Mild
Moderate
Severe
Very
Severe
Extreme
Plain Concrete
Maximum Minimum
Free
Grade of
water
concrete
Cement
Ratio
Reinforced Concrete
Minimum Maximum Minimum
Cement
Free
Grade of
Content
water
concrete
Kg/m3
Cement
Ratio
220
240
250
260
0.60
0.60
0.50
0.45
M 15
M 20
M 20
300
300
320
340
0.55
0.50
0.45
0.45
M20
M25
M 30
M 35
280
0.40
M 25
360
0.40
M 40
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3.5.2
Nominal Mix Concrete
3.5.2.1 Nominal mix concrete shall normally be used only for plain cement concrete
works and less important reinforced concrete works where shown on drawings
or specifically allowed by the Employer / Employer’s Representative . Such
concrete shall not require preparation of trial mixes and all such concrete shall
be mixed in a mechanical mixer. Proportions for nominal mix concrete shall be
according to Table-9 of IS: 456-2000. In addition, standard proportion by
volume shall be used wherever specified.
3.5.2.2 In proportioning concrete, the cement shall be measured by weight (mass).
The quantities of fine and coarse aggregates may be determined by volume
(for corresponding weight) but preferably by weight. If fine aggregates are
moist, the amount of surface water shall be determined. Also an allowance
shall be made for bulking in case of volume batching, in accordance with
IS:2386 (Part-III). The weight of aggregate shall be measured when the
aggregates are dry. Due allowance shall be made for the water content of
moist aggregates. All the above data shall be maintained properly, to the
satisfaction of the Employer / Employer’s Representative .
Table – 7
Table 9 of IS 456 – 2000 Proportions for Nominal Mix Concrete
Grade of
Concrete
M5
M 7.5
M 10
M 15
M 20
Total Quantity of Dry aggregate by
Mass per 50 kg of cement, to be
taken as the cum of the Individual
masses of fine and coarse
aggregate kg.
800
625
480
330
250
3.5.3
Proportion of fine aggregate
to coarse aggregate (by
mass)
Generally 1:2 but subject to
an upper limit of 1:1 ½ and a
lower limit of 1:2 1/2
Quantity of
water per 50
kg of
cement,max1
60
45
34
32
30
Design Mix Concrete
3.5.3.1 Design mix shall be in accordance with IS 456, IS 10262 and SP 23. The
Contractor shall design the mix and submit for the approval of the Employer
/ Employer’s Representative . No concreting works shall be commenced
without the approval of the design mix of concrete. The Contractor is
responsible for the design of the concrete mix. Grades of concrete lower
than M-15 shall not be used in reinforced concrete.
3.5.3.2
Mixes for each class of Designed Mix concrete specified or shown on the
Drawings shall be designed by the Contractor to achieve the specified
minimum cube strength combined with high density and adequate
workability for the purpose. In order to allow for unavoidable variation the
design strength shall exceed the specified characteristic strength by twice
the expected standard deviation. In the absence of previous information,
the value of standard deviation given in the following Table – 8 may be
assumed (conforming to Table 8 of IS 456 – 2000). Assumed values of
standard deviation shall only be used until sufficient data are available to
determine the standard deviation.
Prior approval of the Employer /
Employer’s Representative shall, however, be obtained in the event of use
of higher grade of design mix concrete not covered herein.
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Table - 8
Grade of Concrete
Assumed Standard Deviation
(N/mm2)
3.5
3.5
4.0
4.0
5.0
5.0
5.0
5.0
5.0
M10
M15
M20
M25
M30
M35
M40
M45
M50
3.5.3.3
Classes of Design Mix concrete will be referred to by the minimum 28 days
Works cube strength and by the maximum size of aggregate. Classes of
concrete shall meet the criteria. The maximum water / cement ratio is
herein defined as the ratio of the weight of the free water to the weight of
the cement. The free water is that quantity of water available to combine
with the cement. Any water required to be absorbed by aggregate is
excluded.
To keep the water-cement ratio to the designed value,
allowance shall be made for the moisture contents in both fine and coarse
aggregates and determination of the same in accordance with IS:2386 shall
be made as frequently as directed by the Employer / Employer’s
Representative .
3.5.3.4 Details of any proposed mix design shall be forwarded to the Employer /
Employer’s Representative for his approval in principle well in advance before
that class of concrete is required to be used on the works. The details shall
include at least the following information :
3.5.3.5
(a)
Source, nature and grading of coarse and fine aggregates
(b)
Source of cement
(c)
Nominal maximum size of aggregate
(d)
Cement content
(e)
Aggregate / cement ratio
(f)
Water / cement ratio
(g)
Design density
(h)
Design slump or compacting factor
(i)
Design strength
(j)
Proposed admixtures
(k)
Nominal grading details (tabular & graphical) of the combined
aggregate together with details of the proportions in which the fine
and coarse aggregates are combined.
(l)
Type of plant to be used and location if ready-mixed off site.
The cement content of concrete shall be not less than the appropriate
amount given in Table 5 of IS 456 – 2000. For water retaining structures,
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the minimum cement content shall be 320 kg/m3.Minimum cement
contents, from durability consideration, or different exposures and sulphate
attack shall be as given in Table-4 of IS:456 – 2000 . In case, higher value
is obtained from trial mix from strength consideration, same shall be
considered.
3.5.3.6. Where a Designed mix is to be used, the Contractor shall carry out trial
mixes to determine the suitability of the proposed mix proportions for
production of concrete of the required quality, workability and computability
for the location specified. The Contractor shall prepare trial mixes on
receipt of the Employer / Employer’s Representative ’s provisional approval
of the mix design and complete well before commencement of concreting.
Failure on the part of the Contractor to do so and the consequent delay in
the completion of the works will not entitle him for any compensation
whatsoever, either financially or by way of extension of time.
3.5.3.7
The proportions, once decided for different grades of concrete, shall be
adhered to, during all concreting operations as long as the quality of the
materials does not change.
3.5.3.8
Each batch of concrete shall be sampled and the following prepared.
(a)
six 150 mm cubes – three for test at 7 days, and three
for test at 28 days
(b)
three slump tests (for design slump greater than 25
mm) or
(c)
three compacting
than 25mm).
factor
tests
(for
design
slump
less
3.5.3.9 Variations in the proportions and sources of materials or in the type, size and
grading of aggregates for approved mixes shall not be made without the consent of the
Employer / Employer’s Representative .
3.6
Mixing and Transporting Concrete:
3.6.1
All materials for concrete shall be measured as per approved design mix by weight in
approved weight batching equipment of adequate capacity. Such equipment shall be
checked at weekly intervals at the Contractor’s expense and shall be accurate to within
2%. Certificates of accuracy shall be submitted immediately to the Employer /
Employer’s Representative .
3.6.2
Mixing
Concrete shall be mixed in a mechanical mixer. The mixer should comply with IS 1791
and IS 12119. The mixers shall be fitted with water measuring (metering) devices. The
mixing shall be continued until there is a uniform distribution of the materials and the
mass in uniform in colour and consistency. If there is segregation after unloading from
the mixer, the concrete should be remixed.
3.6.3
A water / cement ratio shall be maintained to produce concrete of adequate workability.
The workability of fresh concrete shall be at the discretion of the Contractor but subject
to approval by the Employer / Employer’s Representative and shall be the minimum
consistent with producing a dense, well compacted mass. Due regard shall be paid to
the size and shape of the section together with any congestion of reinforcement. A
guide to the degree of workability required for various types of work is shown in Table
10 (below).
3.6.4
The slump for concrete as determined by slump tests as per IS: 1199 shall not exceed
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the maximum slumps indicated in Table 9 below for each type of construction using
high frequency vibration unless otherwise approved or directed by the Employer /
Employer’s Representative . The Contractor shall not place concrete having a slump
outside the limits specified without the approval of the Employer / Employer’s
Representative . At least one slump test shall be made for every compressive strength
test carried out. More frequent tests shall be made if there is a distinct change in job
conditions, or if required by the Employer / Employer’s Representative .
Table – 9
Nature of
Concrete
Slump in mm
Workability
Min.
Max.
Type of Construction
Conventional
Medium
50
100
All RCC works
Pumpable
High
100
150
All RCC works.
3.6.5
All materials shall be thoroughly mixed dry before water is added and the mixing of
each batch shall continue for a period of not less than two minutes after the water is
added or such longer period as recommended by the manufacturer of the mixer. The
mixture shall be of uniform colour and distribution on discharge and the entire contents
of the mixer shall be discharged without segregation before recharging. The volume of
mixed material shall not exceed the rated capacity of the mixer.
3.6.6
Prior to the first mix each day being agitated in the mixer a rich cement / sand mix shall
be used to coat the inside of the drum, the surplus material being emptied away and not
used in the works. Each time if the work stops for more than 30 minutes, the mixer
shall be thoroughly cleaned and when the next mixing commences the first batch shall
have 10% additional cement.
3.6.7
Volume batching of materials and hand mixing of concrete will be allowed only at the
discretion of the Employer / Employer’s Representative . Where approved, hand
mixing of concrete shall be done on a clean close boarded platform. The materials
shall be turned over not less than three times dry, water shall then be sprayed on
through a hose and the materials again turned over not less than three times in a set
condition and worked together until a mixture of uniform consistency is obtained.
3.6.8
For hand mixed or volume batched concrete the specified quantities of cement shall
be increased by 10 per cent and not more than 0.5 cubic metre shall be mixed at one
time. The Contractor shall not be entitled to any additional payment in respect of any
extra cost of hand mixing by reason of the additional cement or otherwise. However,
the extra cement shall be considered for reconciliation purposes.
3.6.9
Workability of Concrete
The concrete mix proportions chosen should be such that the concrete is of adequate
workability for the placing conditions of he concrete and can properly be compacted
with the means available. Suggested ranges of workability f concrete measured in
accordance with IS 1199 are given below.
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Placing Conditions
Blinding
concrete,
Shallow
sections, pavements using pavers
Mass Concrete Lightly reinforced
sections in labs, beams, walls,
columns, floors, Hand placed
pavements, Canal lining, Strip
footings.
Degree of Workability
Very low
Heavily reinforced sections
slabs,beams,walls,columns,
Medium
50-100
Medium
75-100
High
Very High
100-150
b)Refer IS 9103
in
Slip form work, pumped concrete
Trench fill-In-situ piling
Termite concrete
3.6.9
Slump(mm)
a)Refer IS 1199
Low
25-75
The moisture content of the coarse and fine aggregates shall be checked by the
Contractor at frequent intervals and the amount of water added to the mix shall be
adjusted to maintain the design workability. For the determination of moisture content
in the aggregates IS: 2386 shall be referred to.
3.6.10 Concrete shall be discharged from the mixer directly into the works or onto a clean,
level, water tight platform or into a clean water tight container. It shall be transported
as rapidly as practicable in a manner which ensures that it is of the correct quality and
consistency at the point of deposition. Normally, not more than 30 minutes shall laps
between mixing and consolidation in position. All platforms and containers shall be
cleaned of the old concrete before the fresh concrete is discharged onto them.
3.6.11 Conveying equipment for concrete shall be mortar tight, well maintained and
thoroughly cleaned before commencement of concrete mixing. Concrete shall be
transported by transit mixers.
3.6.12 Concrete shall not be dropped from a height, thrown or otherwise treated so that
segregation, un-desirable finishes, or defective structural quality results. The
maximum drop shall be 2.1m unless otherwise approved by the Employer /
Employer’s Representative .
3.6.13 No extra water shall be added to the concrete mix after it has left the batching plant.
3.6.14 The Contractor shall take adequate precautions to protect concrete in transit from the
effects of the weather.
3.6.15 Pumping of concrete, which will require a special Design Mix, will only be permitted
with the approval of the Employer / Employer’s Representative . The Employer /
Employer’s Representative shall also review the entire scheme for which
comprehensive details shall be furnished by the Contractor.
3.6.15.1
Pumping operation whenever commenced shall proceed continuously so
as to prevent "cold" joints between placed sections.
3.6.15.2
The delivery line of the pump shall be of 100 mm diameter or greater and
the pump shall be capable of pumping concrete containing a 20 mm nom.
Size aggregate.
3.6.15.3
The pump shall have a receiving hopper and pumping chamber capable
of displacing at least 15 cu. Metres of concrete per hour against a
horizontal delivery head of at least 90 metres and/or a vertical delivery
head of 20 metres.
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3.6.15.4
Pumping lines shall be of approved metallic type laid to avoid bends.
3.6.15.5
The Joints in pumping lines shall be sealed tight to prevent leakages.
3.6.15.6
Pulsating lines shall be isolated from the structure and shall be supported
from the deck on stands.
3.6.15.7
The feet of such stands shall be placed on timbers or similar material to
prevent movement of the line and stand scuffing the deck. Timbers shall
not be embedded in finished work. Stands shall be kept clear of
reinforcement.
3.6.15.8
All equipment, pump chamber, hoppers, lines and rubber hoses shall be
kept clean at all times. Any build-up in the lines of material from
previous operations shall be cleaned out preparatory to pumping.
3.6.15.9
In the event of a breakdown in the equipment causing delay not
exceeding twenty (20) minutes, during which time concrete cannot be
placed, the following procedures shall be carried out:-
3.6.15.9.1
With the approval of the Employer / Employer’s Representative at
site the concrete already in place shall have the "wet edges"
maintained by depositing small quantities of hand mixed concrete
placed by hand against the "wet edge" and vibrated into the mass.
3.6.15.10
Where atmospheric temperature exceeds 30 degrees C, the
receiving hopper and lines shall be cleaned out and the concrete
contained therein discarded and immediately removed from the site.
3.6.15.11
The concrete shall be discarded if initial setting of the concrete has
begun in the hopper or discharge lines.
3.6.15.12
All lines shall be cleaned free of concrete prior to resumption of
pumping after each breakdown
3.6.15.13
Concrete in the lines shall be pumped at approximately eight (8)
minute intervals to ensure the concrete in the line is live, whenever
delivery of concrete to the pump is delayed.
3.6.15.13.1
This pumping interval shall be reduced to five (5) minutes during
extra hot weather conditions.
3.6.15.14
Delivery lines where exposed to hot sun, shall be protected by
covering with bags, wet Hessian or other approved means.
3.6.16 Should the concreting be stopped due to mechanical malfunction, accident, or other
similar cause then the Contractor shall inform the Employer / Employer’s
Representative immediately so that necessary measures and precautions can be
taken. The cost of any additional work caused by these stoppages shall be the
responsibility of the Contractor.
3.6.17 No concreting shall be commenced until the form work and reinforcement and all
other preparations for the pour have been inspected by the Employer / Employer’s
Representative who shall be given a minimum 24 hours notice.
3.7
Placing and Compacting Concrete
3.7.1
Concrete shall be transported and placed by an approved method which ensures that
there shall be no contamination, segregation or loss of the constituent materials.
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3.7.2
If concrete is placed by pumping, the consistency shall be the minimum necessary for
such conveyance of concrete. Before commencement of regular pumping, the
pipeline shall be lubricated by cement mortar (1:2), and once pumping commences,
stoppages shall be avoided.
3.7.3
All areas where concrete is to be placed shall be clean and rendered free from standing
water immediately before the placing of concrete, except for concrete placed under
water.
3.7.4
Concrete shall not be placed in foundations on soft areas or where there is standing
water or debris. Such soft areas shall be removed and filled with 1:4:8/1:3:6 nominal
mix concrete, as directed by the Employer / Employer’s Representative .
3.7.5
For rock surfaces, it shall be ensured that the rock is not unsound. On sloping rock
faces, rough steps or benches shall be formed and concrete shall not be placed on a
sloping rock surface. Prior to pouring concrete, the rock surface shall be cleaned with a
high pressure water and air jet and kept wet for three hours. Also, before placing
concrete, water shall be removed from depressions, the rock surface shall be dried and
a 10 mm thick cement sand mortar (1:6) layer shall be placed and worked into all
crevices, cracks, depression, etc.
3.7.6
Concrete shall not be placed in any part of the structure until approval has been given,
and if concreting is not started within 24 hours of that approval being given, approval
shall be obtained again. Approval by the Employer / Employer’s Representative of any
of the materials and / or work as required herein shall not relieve the Contractor of his
obligation to produce finished concrete in accordance with the drawings and
specifications.
3.7.7
Concreting shall proceed continuously between predetermined construction joints and
shall rise uniformly in the form work at a rate of not less than 2m per hour. Concrete
shall not be placed directly against a vertical form face but shall be caused to flow to
this surface during the compaction process. Unless the Employer / Employer’s
Representative agrees otherwise, fresh concrete shall not be placed against in-situ
concrete which has been in position for more than 30 minutes unless the in-situ
concrete has been kept damp with a layer of wet hessian and protected from the
weather.
3.7.8
When in-situ concrete has been in place for 4 hours or in the opinion of the Employer /
Employer’s Representative the concrete has stiffened to such an extent that it no longer
responds to the action of an internal vibrator, no further fresh concrete shall be placed
against it for a further 20 hours and a construction joint shall be formed.
3.7.9
Concrete shall be compacted in its final position within 30 minutes of discharge from the
mixer unless it is carried in continuously operating purpose made agitators when the
applicable time shall be within 2 hours of the introduction of water to the mix and within
30 minutes of discharge from the agitator. Concrete, which in the opinion of the
Employer / Employer’s Representative is no longer sufficiently workable, shall be
rejected.
3.7.10 All concrete shall be vibrated unless otherwise specified. Experienced
operatives using immersion type vibrators to the Employer / Employer’s Representative
’s satisfaction shall carry out the vibration.
3.7.11 Internal vibrators shall operate at not less than 10000 cycles per minute and external
vibrators not less than 3000 cycles per minutes. Vibrating tables operating at a
minimum of 5000 oscillations per minute may be used for pre-cast elements subject to
approval. Do not use external clamp-on type vibrators without prior approval.
3.7.12 Placing of concrete shall be carried out in layers not exceeding 600 mm deep and in
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sequence from one end of the form to the other.
3.7.13 Placing of concrete shall be carried out in lifts not exceeding 3m in height. This
restriction may be reduced to 2 m or less when casting thin or congested sections at
the discretion of the Employer / Employer’s Representative .
3.7.14 Concrete in foundations and other underground work shall be protected from
contamination by falling earth or rock during and after placing
3.7.15 Sufficient vibrators shall be provided to correspond with the rate of placing of concrete.
The vibration shall be continuous throughout the placing of the concrete. Standby
vibrators shall be on Site during all concrete placing.
3.7.16 Vibration shall not be allowed to disturb any recently placed concrete that has
begun set. Any water accumulating on the surface of newly placed concrete shall be
removed by approved means and no further concrete shall be placed thereon until such
water is removed.
3.7.17 Concrete shall be placed and compacted in such a way as to avoid disturbance to the
form work and reinforcement. Where sections of the Works are carried out in lifts, the
reinforcement projecting above the lift being cast shall be supported to prevent
movement of the bars during the casting and setting of concrete.
3.7.18 Vibration shall not be used as a means of distributing concrete into position, and
concrete shall not be vibrated between 4 and 24 hours after placing.
3.7.19 Any concrete, which in the opinion of the Employer / Employer’s Representative shows
signs of initial setting before or during placing, shall not be used and it shall be removed
at the Contractor’s expense.
3.7.20 The Contractor shall take special precautions when concreting in hot weather. Any
form work made of concrete, metal or other material of high thermal capacity shall be
cooled with water before concrete is placed against it. Curing of concrete shall
commence immediately after compaction. Protection from direct radiation shall be in
place within 30 minutes after final surface tamping.
3.7.21 Suitable means shall be provided to ensure that the temperature of the concrete on
placing does not exceed 30 deg. C. Concrete shall not be placed around reinforcement
or against surfaces, which are at temperatures above 30 deg. C. All surfaces shall be
thoroughly dampened immediately prior to placing fresh concrete to prevent excessive
absorption of water by the form work.
3.7.22 Special care shall be taken in accordance with IS: 456 while laying concrete under
extreme weather.
3.7.23 under water concrete shall be placed in accordance with the recommendations given in
BS 8004 or corresponding IS Code.
3.8
Testing of Concrete
3.8.1 Sampling
3.8.1.1
For all structural concrete the following representative samples shall be taken
for each concreting day and shall be used and tested by an accredited
laboratory.
a) 150 mm concrete test cubes
b) Two slump tests or
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c) Two compacting factor tests
3.8.1.2 The rate of sampling fresh concrete shall be at least that specified in Table 10
(below) and at least one sample shall be taken from each grade of concrete
produced on any one day.
3.8.1.3
A technically competent person shall supervise the sampling of fresh
concrete and the making of concrete test cubes.
Table – 10
Table 11 of IS 456 – 2000 Characteristic Compressive Strength Compliance Requirement
Specified Grade
M 15
M 20 or above
Mean of the Group of 4Nonoverlapping consecutive
Test results in N/mm2
> f ck + 0.825 x established
standard
deviation
(rounded off to nearest 0.5
N/mm2)
or
f ck + 3 N/mm2 whichever is
greater
> f ck + 0.825 x established
standard
deviation
(rounded off to nearest 0.5
N/mm2)
Individual Test results in
N/mm2
> f ck - 3 N/mm2
> f ck - 3 N/mm2
or
f ck + 3 N/mm2 whichever is
greater
3.8.1.4
The names and qualifications of the supervisory personnel representing the
Employer / Employer’s Representative and the Contractor respectively shall
be entered into an inspection log book. All inspections shall be clearly
recorded with date, time and location of inspections, structural members’
references, names or personnel present and details of site activities. The
logbook shall be provided by the Contractor and kept on site by the Employer
/ Employer’s Representative .
3.8.1.5 The supervisory personnel shall mark and sign on the concrete test cubes a
unique reference number and sufficient to allow the testing laboratory to
identify clearly the date and time of casting and the position in which the
batch of concrete (from which the cube was made) was placed.
3.8.2
Concrete Test Cubes
3.8.2.1 Make six cubes from a single sample taken from a batch of concrete selected
at random. Taken the sample at the point of discharge from the mixer, or
elsewhere as directed by the Employer / Employer’s Representative . On
completion of curing one set of three cubes is tested for 7 days strength and
the remaining tested for 28 days strength. The average of the three results
shall be taken as the test result.
3.8.2.2 The strength requirement shall be as per clause no 15.2.2, 15.4 & 16.1 of IS456 – 2000 latest version
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3.8.2.3 Acceptance criteria shall be based on test results on 28 days strength only
subject to clause 16.1 of IS-456 – 2000 latest version
3.8.3.
3.8.2.4
The variation between the lowest and highest shall not be more than 15% of
the mean of the three.
3.8.2.5
In addition to the water tank curing method specified in IS-516, cubes may be
cured on Site or in the laboratory in approved mist rooms. Where mist rooms
are used, they shall comply with ASTM C511-75 except that the temperature
shall be maintained at 27 ºC + 3 ºC.
3.8.2.6
If concrete represented by test cubes in any concreting day fails to meet the
standard of acceptance specified in accordance with the IS codes, the
Employer / Employer’s Representative may order the taking of core samples
from finished concrete work in same concreting day for test at the
Contractor’s expense. The locations of these cores to be taken shall be
decided by the Employer / Employer’s Representative . These cores shall be
treated as in 3.8.3 below.
Concrete Test Cores : (Non-destructive testing on concrete will be carried out at the
discretion of the Employer / Employer’s Representative based on the cube test results
and review of concrete executed).
3.8.3.1 Concrete core samples, from the finished concrete work, shall be taken in the
locations directed by the Employer / Employer’s Representative .
3.8.3.2
The diameter of the concrete cores should be 150 mm for 40 mm aggregate
concrete, 100 mm for 20 mm (or smaller) aggregate concrete and must not
be less than 75 mm. The length of the test sample cut from the concrete
core shall be at least 95% of the diameter.
3.8.3.3
All coring shall be completed within 7 working days of the date the instruction
is given by the Employer / Employer’s Representative .
3.8.3.4 All cores shall be drilled and tested by an accredited laboratory.
3.8.3.5 Cored holes shall be made good to the approval of the Employer / Employer’s
Representative with cement mortar or concrete of similar strength to that of
the parent concrete.
3.8.3.6 Results of the cores for the same concreting day will be examined individually.
3.8.3.7
In assessing the results of compressive tests on cores the concrete
represented by the core shall be deemed not to comply with the specification
if the strength of the core when adjusted for length / diameter ratio and
converted to estimated cube strength as follows:
a)
The average result of the cores is less than 85% of the specified grade
strength or
b)
An individual result is less than 75% of the specified grade strength
3.8.3.8 Concrete cores should not show evidence of segregation of constituent
materials
3.8.3.9 There should be no honeycombing in the cores and the extent of the voids in
the cores should not be more than “few”.
3.8.3.10 Cores shall not be tested for strength at ages less than 28 days and no
adjustment shall be made to the measured strength in respect of the age of
the core when tested.
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3.8.4
3.8.5
Testing and Test Record
3.8.4.1
The concrete cubes tested at 7 days are intended to be indicative only and
the target works strengths at 7 days are not mandatory. It should be noted
however that it is unlikely that cubes failing the 7 days target will
subsequently pass the 28 days cube strength.
3.8.4.2
The concrete cubes tested at 28 days shall be taken to represent the
concrete placed in the works. The standard of acceptance for cube strength
tests shall be calculated from the maximum load sustained by the cube at
failure.
3.8.4.3
The appropriate compressive strength compliance requirement as given in
Table 11 of IS 456 – 2000 shall be considered to be satisfied if the test
results comply with the acceptance criteria.
Workability
3.8.5.1 The standard of acceptance for the slump test during the production of
concrete shall be the design slump + 10 mm.
3.8.5.2 The standard of acceptance for the compacting factor test during the
production of concrete shall be the design compacting factor (as specified in
Table 10) + 0.03.
3.8.6
Testing
3.8.6.1
The standard of acceptance of any preliminary tests will be similar to the
standard for normal works cubes, cores, slump or compacting factor, except
that the minimum cube strengths required shall be those given under
minimum Preliminary Cube Strength at 28 days in Table 2 of IS 456 -2000.
3.8.6.2
The Employer / Employer’s Representative shall, during the progress of the
work, have the power to order tests, other than cube tests, including slump
tests as far as practicable due to local conditions.
3.8.6.3
If the strength requirement is not satisfied the Employer / Employer’s
Representative may order such further testing, including chemical analysis of
samples of hardened concrete in the structure, as he considers necessary.
3.8.6.4
Any concrete which fails to meet the above standards of acceptance shall he
be either further tested, or rejected at the discretion of the Employer /
Employer’s Representative . The costs of any such tests or of the removal of
rejected concrete and its replacement and associated costs shall be borne by
the Contractor.
3.8.6.5 If the strengths required are not attained or maintained throughout the
contract, the Employer / Employer’s Representative may instruct the
Contractor to take any one of the following steps or a combination thereof as
the Employer / Employer’s Representative considers appropriate.:a)
Adjust the mix proportion and carry out further trial mixes until a new
mix proportion satisfying the requirements of the foregoing test is
obtained and approved.
b)
Improve the standard of quality control
c)
Carryout, at the Contractor’s expense, other tests as directed by the
Employer / Employer’s Representative .
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d)
3.9
Replace any site concrete condemned as a result of failing to comply
with the standards of acceptance specified and meet all costs arising
from such replacement. Submit for approval the method statement for
replacing the condemned concrete before the replacement is carried
out. In certain cases, the Employer / Employer’s Representative may
require the method statement to be prepared and the remedial work to
be supervised by a qualified Engineer-in-Charge /Structural Engineer.
Curing and Protecting Concrete
3.9.1
All freshly placed concrete surfaces shall be protected from damages by workmen
equipment or any other cause.
3.9.2
Newly placed concrete shall be protected by approved means from harmful effects of
weather including rain, sun and wind. Concrete placed below ground level, shall be
protected from falling earth, during and after placing. Concrete placed in ground
containing any deleterious substances, shall be kept free from contact with such
ground or with water draining from such ground, during placing of concrete and for a
period of at least three days or as otherwise instructed by the Employer / Employer’s
Representative .
3.9.3
Steps, as approved by the Employer / Employer’s Representative , shall be taken to
protect immature concrete from damage by debris, excessive loading, vibration,
abrasion, mixing with earth or other deleterious materials, etc. that may impair the
strength and durability of the concrete.
3.9.4
Immediately after compaction and for 7 days thereafter concrete shall be prevented
from drying out too rapidly and protected against harmful effects of weather including
rain, rapid temperature changes, and wind. This period may be extended, at the
discretion of the Employer / Employer’s Representative , up to 14 days. The methods
of protection used shall be subject to the approval of the Employer / Employer’s
Representative . The method of curing used shall prevent loss of moisture from the
concrete.
3.9.5
During the curing period horizontal surfaces shall be protected by one or more of the
following or other approved means.
3.9.6
a)
Covering with damp hessian canvas sacks or similar absorbent materials kept
constantly damp and wholly covering the exposed concrete surface.
b)
Covering with impermeable materials raised approximately 50 mm over the
surface so as to prevent loss of moisture.
c)
an approved sprayed membrane curing compound
d)
Flooding with water (potable water free from sediments of any kinds shall be
used).
During the curing period other surfaces shall be provided by the following or other
approved means :
a)
b)
Form work in close contact with the concrete
covering as in 3.9.5 above
3.9.7
All concrete faces or edges, particularly those, which are exposed without rendering in
the final structure, shall be adequately protected from damage and discoloration at all
times.
3.9.8
Concrete structures shall not be loaded until the concrete is at least 21 days in the case
of cantilevers. With the prior approval of the Employer / Employer’s Representative the
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structure may be loaded after this time but in no case will loading greater than the final
design loading be permitted.
3.10
Cleaning and Finishing of Concrete
3.10.1 All concrete surfaces shall have an even and clean finish free from honeycombs, air
bubbles, fins or other blemishes unmarred, reasonable smooth. The form work joint
marks on concrete work exposed to view shall be rubbed with carborandum stone
and defects patched up with paste of cement sand mortar (1:1) and cured. The finish
shall be made to the satisfaction of the Employer / Employer’s Representative .
Concrete surfaces to be subsequently plastered or where brick work is to be built
against them, shall be adequately hacked as soon as the form is stripped off so that
proper bond can develop.
3.10.2 Immediately after removal of forms, the concrete shall be inspected and defective
areas as pointed out by the Employer / Employer’s Representative shall be removed
partially or entirely as directed. Holes, left by form bolts, etc. shall be filled-up and
made good with cement sand mortar of approved mix. All superficial defects such as
honeycombing, rough patches, etc. shall be similarly made good. If the defective
area is at a vulnerable location, e.g. at the ends of beams & columns etc. then it may
be necessary to cut out the member completely or in part and reconstruct as directed
by the Employer / Employer’s Representative . If epoxies have to be used, the same
shall be subject to the approval of the Employer / Employer’s Representative .
Poured concrete affected by faulty form work shall be removed totally and replaced.
If so directed, the Contractor shall have to resort to grouting / shotcreting.
3.10.3 A smooth finish shall be obtained with the use of forms having smooth and even
surfaces and edges. Panels and form linings shall be of uniform size and be as large
as practicable and installed with closed joints. Upon removal of forms, the joint marks
shall be smoothened off and all blemishes, projections etc. removed leaving the
surfaces reasonably smooth and unmarred.
3.10.4 Where integral cement concrete finish is called for, the surface shall be compacted
and then floated and treated with a straight edge and any high and low spots
eliminated. The work shall be carried out as per IS:2571.
3.11
Tolerances
3.11.1 All other cast in place concrete work shall be dimensionally accurate to within
the tolerances given in Table 11 (below), unless closer tolerances are further specified
or shown on the drawings
3.11.2 Closer tolerances will generally be specified for:
a)
b)
c)
d)
Pre-cast concrete
Measuring flume contours
Filter bed and drying bed floors
Machinery bases
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Table – 11
Item
1
1a)
1b)
2.
Tolerance
Variations from the plumb
In the lines and surfaces of
columns, piers, walls and arises
In 3m
5 mm
In any storey or 6 m maximum
10 mm
In 12 mm or more
20 mm
For exposed corner columns,
control-joint grooves and other
conspicuous lines
In any storey or 6 m maximum
5 mm
In 12 mm or more
10 mm
Variation from the level, or
from the grades indicated on
the drawings **
At any point (from true elevation)
+ 10 mm
3.
but not more than 5 mm
variation between two
points within 6 m in a
horizontal plane.
Variation of the linear building
lines from established position
in plan and related position of
columns, walls and partitions.
In any bay or 6 m maximum
10 mm
IN 12 m or more
25 mm
No tolerance that would result in encroachment on adjoining properties is
permissible
4.
5.
Variation in the sizes and
locations of sleeves, floor
openings and wall openings
5 mm
Cross sections of columns and
beams, thickness of walls, slabs
and other parts of the building
Upto 0.5 m
+5/-3mm
Over 0.5 m
+/-5 mm
6.
Footings
6a.
Variation in dimensions in plan
6b.
Misplacement or eccentricity
+25 mm#/10mm
2%
6c.
Reduction in thickness
50 mm
86
of the footing width in
the
direction
of
misplacement but nor
more than +25 mm#
of specified thickness
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Part 1 ( c ) Technical Specification
Item
Tolerance
7.
Variation in steps
7a.
IN a flight of stairs
7b.
Rise
3 mm
Tread
5 mm
In consecutive steps
Rise
2 mm
Tread
3 mm
**
Variation in floor level are to be measured before removal of supporting
shores
#
Applies to concrete only, not to reinforcing bars or dowels
Except otherwise shown on drawings, these are maximum allowable
tolerances.
3.12
Miscellaneous
3.12.1 Holes, chases, indentations and the like shall be provided where indicated on
the drawings. All such shall be formed in the concrete and not cut after the concrete
has hardened.
Should the Contractor or any subcontractor require additional case-in items, holes or
the like these requirements shall be submitted to the Employer / Employer’s
Representative for his approval a minimum of 14 working days prior to concreting.
Pipes, conduits, fixing bolts and other such cast-in items shall be provided where
indicated on the drawings.
3.13
Concrete (Non-Structural)
3.13.1 Lightweight aggregate concrete shall be proportioned, mixed and placed as
required by the Employer / Employer’s Representative . Unless otherwise shown, the
mixes shall be one of the following, the type to be directed by the Employer /
Employer’s Representative .
a)
Breeze Concrete
1 Part cement to 6 Parts of coke breeze aggregate by volume.
b)
Polystyrene aggregate concrete
i)
1:2:4 mix (913 kg.m3): 45 kg. Cement and 0.056m3 sand to 2.25 kg.
Expanded polystyrene particles.
ii)
1:3:6 mix (800 kg.m3): 45 kg. Cement and 0.084m3 sand to 3.06 kg.
Expanded polystyrene particles.
iii)
1:1:4 mix (640 kg.m3): 45 kg. Cement and 0.028m3 sand to 2.155 kg.
Expanded polystyrene particles.
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c)
Vermiculite aggregate concrete
1 Part cement to 6 Part vermiculite by volume
3.13.2 Lightweight “air entrained” concrete to be proportioned and mixed according to
the manufacturer’s instructions and placed as required by the Employer / Employer’s
Representative .
3.14
Water proofness of non-structural – External walls
3.14.1 Non structural walls shall be constructed from block work, brick work, non –
structural reinforced concrete etc. as described on the Engineer-in-Chargeural drawings
and in the specification.
3.14.2 The Contractor shall be completed and solely responsible for the water proofness of the
nonstructural external walls and shall satisfy himself that the materials, details and
construction sequences are such as to provide a water proof external facade.
3.14.3 Any water leakage, dripping or dampness is unacceptable and shall be repaired to the
satisfaction of the Employer / Employer’s Representative at no extra cost.
3.14.4 The Contractor shall review the drawings and specification and shall propose whatever
changes he considers necessary, at no extra cost to the contract, including reviewing
construction sequence, pour lengths, movement joint locations and water proofing
details, caulking materials, shrinkage reinforcement, etc. and supervision of the work to
ensure the agreed construction meets the requirements of clause 3.14.3 above.
3.14.5 Prior to applying finishes the contractor shall make a detailed inspection and repair any
defects which could impair the water proofness of such non-structural external walls.
Remedial proposals for such repair shall be submitted to the Employer / Employer’s
Representative for his agreement.
3.14.6 Any remedial works shall be carried out and all caulking / water proofing materials and
details shall be applied to the supplier / manufacturers recommendations. The
Contractor shall submit the relevant manufacturers guarantees and test results to the
Employer / Employer’s Representative for his agreement.
3.15
Cantilevered Canopies
3.15.1 Construction joints for cantilevered canopy slabs must not be located along the external
edge of the supporting beams or walls. Cantilevered canopy slabs shall be cast
monolithically with supporting beams and walls.
3.15.2 Adequate bar spacers shall be provided to maintain the position and alignment of the
steel bar reinforcement.
3.15.3 Effective water proofing should be provided on the top of the canopy slab.
3.15.4 Upon the completion of the canopy structure, the Contractor shall submit a report
including the following to the Employer / Employer’s Representative for his approval
and / or retention :
a)
An as-built plan showing
i.
Locations and dimensions of members
ii.
Direction and gradient of falls
iii.
Location of drainage outlets / down pipes
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iv.
The thickness of screeding and finishes
v.
Locations and details of any construction joints for the canopy Structure
vi.
Grades of concrete and steel
vii.
Diameter and spacing of steel reinforcement in the canopy slab
viii.
Date on which the concrete was cast
ix.
b)
Concrete cover to steel reinforcement at critical positions of the
canopy slab as measured by cover meter and
Record photographs showing clearly and in detail.
Conditions and arrangement of the fabricated steel reinforcement in the canopy
slab and all the supporting members prior to concreting and
Condition of the canopy slab and the supporting members after concreting but
before laying of the finishes and water proofing materials.
3.15.5
A statement confirming that the Contractor has inspected and supervised the
construction of the canopy structure and that it has been constructed in accordance
with the approved plans.
4.0
Mode of measurement
Unless noted otherwise in the bills of quantities, the method of measurement for various
items shall be generally in accordance with IS 1200
********
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SECTION - 7
FORM WORK
1
Formwork
4.1
Related Work
•
Concrete
•
Reinforcement
4.2
4.3
Applicable Standards
IS - 4990
Specification for plywood for concrete shuttering work
IS - 1629
Rules for grading of cut size of timber
IS - 2750
Specification for steel scaffoldings.
IS - 4014
Code of practice for steel tubular, scaffolding
Section Includes
Design, Fabrication, erection and striking of formwork for in - situ concrete
4.4
Quality Assurance
Design and construction shall be executed and supervised by fully qualified personnel.
In accordance with quality assurance programme, the Contractor shall provide the Employer /
Employer’s Representative with information demonstrating that a system will be used to ensure
that the work carried out under this section (including that done by sub-Contractors) will comply
with the requirements of the specifications.
4.5
Formwork
Related Work
•
Concrete Form Work
•
Concrete Reinforcement
•
Cast - in situ Concrete
4.5.1
Quality Assurance
a.
Supervisory staff shall have qualification and experience in the above field.
c.
IS Standards – Note: Latest amendments shall be followed.
4.5.2
Design Criteria
Formwork system shall be executed and designed by specialist, qualified, to the shapes, lines,
forms and dimensions shown on drawings. The Contractor shall submit to the Employer a method
statement backed by design calculations. Required drawings and sketches shall be enclosed
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along with the statement for the proposed area to be taken up for working at a time. The number of
repetitions expected, type of material used, etc shall be detailed therein.
Formwork shall start only after written approval from the Employer / Employer’s Representative has
been received. Approval of the proposal in submitted form an acceptance of modification does not
relieve the Contractor of its obligation to achieve its required line finish within accepted tolerance
limits in terms of quality of works completed and safety. Neither will it diminish the Contractor’s
responsibility for the satisfactory performance of formwork.
Basic points to be understood in designing the formwork are stated below:
a)
Erected Form work shall be watertight, shall conform to shape, lines, dimensions,
verticality, rigid during placing, vibrating and configuring the concrete
b)
Formwork system shall be of steel or timber or 12mm thick water resistant Ply board,
and shall be continuous, straight and without any warping.
c)
Design of formwork shall take into account:
•
Height of pour
•
Thickness of member
•
Rate of pour
•
Concrete slump
•
Texture of finish
•
Placing temperature
•
Concrete density
•
Construction joints
•
Wind load
•
Method of Discharge
d)
Form work design shall have
•
Dimensional tolerance
•
De mountable without shock, disturbance or damage to concrete
e)
All construction joints in beams and slabs shall be provided as shown in drawings.
f)
Ties shall be provided where required
g)
Cambers shall be provided where shown.
h)
Props / supports of extra ceiling height shall be specially designed.
4.6
Form Work Material
Construction formwork with smooth faced plywood, steel or timber to produce smooth straight level
and sharp profiles shall be used for the works. Panels to be of design of optimum size to reduce
the number of joints.
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a)
Form material shall have strength adequate to withstand pressure of newly placed
concrete without excessive and adjustable bow or deflection.
b)
Factory fabricated, adjustable length removable or snap of metal form ties, design to
prevent from deflection and to prevent spilling concrete surfaces on removal.
c)
Ties shall be such that
•
A portion remaining within the concrete shall be at least 38mm from the outer
concrete surface.
•
d)
That will not leave a hole larger than 25mm dia meter on the concrete surface.
Form coating compound that will not bond with, stain, not adversely effect concrete
for required bond or adhesion not hamper the wetting of surface to be covered with water or
curing compound.
All propping and centering shall be of adjustable steel supports (built-up sections of rolled steel)
and tubular props to full height without joints, and with sufficient bracing to take into account the
construction loads, namely full load of concrete with any live load and impact load likely to occur
during concreting.
Steel shuttering used for concreting shall be sufficiently stiffened. The steel shuttering shall also be
properly repaired before sue and properly cleaned to avoid stains and defects in concreting.
4.7
Workmanship
Formwork shall be classified based on the ultimate finishes required of the concrete surface
as:
•
Textured or decorative finish
•
Fair-faced finish
•
Rough finish
4.7.1 The Contractor shall account for all material and labour to achieve the above finishes to the
satisfaction of the Employer in his quoted price.
4.7.2 Guidelines for Good Workmanship
Following are a few points as guidelines for good workmanship in formwork and shall be
accounted for in his quoted price.
•
Erection of formwork may be from pre-moulded, pre-fabricated, pre-assembled plates or
form reasonable enough to transport and erect at site to correct lines and levels as set at
site.
•
Supports shall be firm and maintained in position by nails, cross bracing, tie-rods, locking
bolts, nuts, etc.
It shall be rigid and stiff so as to retain its shape during and after
concreting.
•
Joints shall be water-tight and no cement slurry shall be allowed to get through
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•
Pre-fabricated or site forms shall be assembled so as to de-shutter without any jerk to the
green concrete. For this double wedges shall be used. The wedges shall be nailed. The
heads left with, allowing easy removal while de-shuttering.
•
Pre-fabricated or site formwork shall be sufficient thickness with supporting spans in both
directions. These shall be standardised in size for easy replacement and universal use at
site
•
Props shall be of steel only. Its spacing shall be as per design. It shall be vertical and
plumbed. Base shall be of proper steel plate or timber plank for equal distribution of load
•
Contractor’s shall remove the tag provided by the plywood manufactures present on
plywood board while using he same.
•
In case of multi-storied buildings, any upper floor shall be suitably supported on at least
one floor below the same, or as approved by the Employer.
•
Props shall be adequately cross-braced horizontally
•
At the design and erection stage following additional points shall be considered and be
incorporated into the setting
•
Opening of cleaning prior to the start of concreting
•
Pouring points shall avoid high drops and provide easy access to vibrating needles
•
Surfaces shall be treated with suitable releasing oil or emulsion prior to the reinforcement
laying. Such releasing oil shall be got approved from the Employer.
•
Ensure that forms and adjacent surfaces are thoroughly cleaned to receive concrete and
debris.
•
Locate construction joints in a manner so as not to impair strength and appearance of
structure.
Following points shall be observed very carefully:
•
Joints of formwork shall be watertight. It is easy to check from the bottom and make sure
no light is visible
•
Props shall be on solid base, plumbed, in straight line, braced horizontally and cross
•
Tie-bars, bracing and spacers in beams, walls and columns shall be at correct
place/location and fully tight
•
Wedges shall be fully secured and nailed with heads left out for easy removal
•
All saw dust, dirt, shavings and any other unwanted material shall be cleaned and hosed
out
•
Provision shall be made for watching formwork while concreting and any other platform
needed for movement of workers without any disturbance to the reinforcement
•
Provision is made for traffic on formwork : not to bear directly on reinforcing steel.
•
Number of reuses shall be decided by the Employer on examining the condition of
formwork after each use. If during concreting any weakness develops or formwork shows
any distress, the work shall be stopped and remedial action taken.
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4.7.3 Finishing Formed Surfaces
The Contractor shall:
-
Repair and patch defective areas with fins and other projections completely removed or
smoothed.
-
To smooth concrete where fins and other projections have formed moisten concrete
surface within a day after forms have been removed and rub with carborundum stone until
surface is a uniform colour and texture within the projection limits.
-
Not apply cement ground other than that produced by the rubbing process.
-
Remove and replace concrete having defective surfaces if defects cannot be repaired to
the satisfaction of the superintendent.
Surface defects shall include colour and texture irregularities, cracks, spills, air bubbles,
honeycombs, rock pockets, fins and other projection on the surface, stain and form tie holes.
The Contractor shall:
-
Undercut voids larger than 25mm diameter and fill with fresh concrete after thoroughly
wetting concrete surfaces.
-
Fill small holes and irregularities using 2:1 (Portland cement to fine sand by volume) grout
mixed with approved bonding admixture according to manufacturer’s specification.
-
Blend standard Portland cement with white Portland cement
if necessary so that final
colour of dry grout will match adjacent surfaces.
-
After applying grout to repair area, wipe with Hessian cloth to match adjacent texture and
within the specified surface tolerances.
-
Keep concrete patch damp with fog *spray for at least 36 hours.
4.8
Measurements
Formwork shall be measured as the area (in square meters) of shuttering in contact with the
concrete including covers, angles, splays, mitres, bevels, etc. for which no special rate shall be
allowed.
•
It shall be measured to the nearest centimeter and the area worked out correct to two
decimal places
•
No deduction shall be made for openings up to 0.4 square meter in plan
•
Area of voids shall deducted from the face area of shuttering.
•
No deductions shall be made from formwork of main beams where a secondary beam
intersects it. Formwork for secondary beams shall be measured up to sides of the main
beams.
•
No deduction shall be made from the formwork to column casings at intersection of beams.
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•
Lapping of formwork with previously laid out concrete will not be measured and will not be
paid for.
•
The quoted rate shall be applicable for all working conditions and at all heights and depths
or lifts specified in the drawings. The rate shall include the cost of materials and labour for
various operations involved including, but not limited to the following:
•
Provision of formwork, its erection and treatment of the concrete surface immediately after
removal of the formwork
•
Holes to be made in the formwork for inserting electrical conduits, piping for plumbing
works, etc
•
Centering, bracing, tightening with bolts and nuts, staging, etc.
•
Splayed edges, notchings, allowance for overlaps, centering, shuttering, strutting, bolting,
nailing, welding, casing striking and removal.
•
Filling to form stop chamfered edges or splayed external angles to footings, beams,
columns and the like.
•
Temporary openings in the forms for pouring concrete and removing rubbish.
•
Dressing with oil/approved emulsion to prevent adhesion of concrete with shuttering.
•
Raking or cutting.
•
Fixing inserts and openings at the correct line and level and at any stage to support the
same at the directed height and place.
•
Platforms if any to check forms while concreting is in progress.
•
Filling and making joints watertight to the satisfaction of the Employer.
•
Cleaning of the shuttering.
•
Cleaning the complete floor immediately on deshuttering complete to enable the start of
next activity.
•
Cleaning and washing of the complete floor during and after concreting to avoid any
damage to finished surface. It will be responsibility of the Contractor to protect and retain all
finished surfaces.
Should there be any laitance due to concreting of upper floors or other construction activities within
the said floor the Contractor shall be responsible to do all that is required to bring the finish back to
the original or as specified in the Technical Specification/ directed by the Employer.
No payment shall be made for temporary formwork used in concreting nor for formwork required for
joints or buttheads, in floors or elsewhere whether such joints are to be covered late with concrete
or mastic or other material.
4.9
Tolerances
Tolerance is a specified permissible variation from lines, grades or dimensions given in drawings.
No tolerances are specified for horizontal or vertical encroachments beyond the legal boundaries.
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Unless otherwise specified, tolerances given in the following sections shall be permitted.
4.9.1
Tolerance for RCC Buildings
Variation from plumb should be as follows:
•
In the lines and surface of columns, walls, and other vertical members, viz inside face
of lift shaft, etc. 3 mm per 3.0 meter but not exceeding 10mm for the full height of the building.
•
•
•
•
For exposed corner column and other conspicuous lines
In any bay up to 5 m maximum
3 mm
In 10 m or more bays
5 mm
Soffits of slabs, ceilings and beams
2.5 m bays
3 mm
5.0 m bays
3 mm
10.0 m or more
10 mm
Lintels, sills, parapets, grooves and other conspicuous lines
In any bay up to 5 m maximum
3 mm
In 10 m or more
5 mm
Variation of the linear building lines from established positions in plan and related
position of columns, wall and partitions
In bay up to 5 m maximum
5 mm
In 10 m or more
•
10 mm
Deviation from dimensions of footing / foundation:
(i)
Dimension in plan (+) 50mm
(ii)
Eccentricity in plan: 0.02 times the width of the footings in the direction of
deviation but not more than 50mm
(iii) Thickness: (+) 0.05 times the specified thickness.
(iv) Surface of foundation against ground: -5mm, +10mm
(v)
•
Top surface of foundations, bases, piers: +5mm, -20mm
Variation in sizes and location of sleeves, opening in walls and floors to be 5 mm
(except for anchor bolts)
•
Variation in cross-sectional dimension of columns and beams and thickness of slabs
and walls -5 mm, +10 mm
•
Variation in steps
In a flight of stairs
Risers
Treads
In flight of stairs
3 mm
5 mm
In consecutive steps
1.5 mm
3 mm
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All the tolerances mentioned above shall apply to concrete dimensions only, and not to positioning
of vertical steel or dowels.
4.10
Removal of Formwork:
Formwork shall not be struck until the concrete has reached a strength at least twice the stress to
which the concrete may be subjected at the time of removal of formwork.
•
Formwork shall be removed carefully without jarring the concrete and curing of the
concrete shall commence immediately. Sudden shocks / vibrations during removal of wedges
shall be avoided. Where finished edges have re-entrant angles, remove formwork as early as
possible to avoid shrinkage cracks.
•
Concrete surfaces to be exposed shall where required by the Employer, be rubbed
with carborandum stone to give a smooth and even finish.
•
Where concrete requires plastering or other finish later, the concrete surface shall be
hacked as directed.
•
4.10.1
No extra charge will be allowed to the Contractor for such work.
Minimum time Requirements
For other cements the stripping time shall be suitably modified in consultation with the Employer.
For precast moulds the stripping time shall be 24 hours.
Striking time shall be as follows:
Type of Formwork
Minimum period before striking
(excluding the day of
casting)
i.
Walls, columns
12 hrs
ii.
Vertical faces
12 hrs
iii
Removal of formwork with props fully left under
spanning over 6m
7 days
iv
Between ribs not more than 1 to 2 m
7 days
v.
Ribs, joists, beams, soffits
-
Up 3m clear span - Beams
7 days
-
Between 3m to 6m - Beams
14 days
-
Above 6m clear span beams
21 days
vi. One way floor slabs - up to 3m
7 days
vii. One way floor slabs - between 3m to 6m
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viii One way floor slabs - over 6m
14 days
ix
Beams and Girder Sides
12 days
x.
Removal of props below slabs spanning over 6m
21 days
Striking of Formwork within the time limits listed above is subject to successful crushing of cubes
compressive strength results. However re-shuttering and re-propping can be done if the required
strength is attained as per the instructions of Employer / Employer’s Representative
4.11
Cleaning and Oiling of Forms
The contactor shall ensure that the surface of the forms that will touch the concrete shall be free
from encrustations of mortar, grout, or other foreign material. Temporary openings shall be left at
the bottom of formwork to enable sawdust, shavings, wire off-cuts and other foreign material to be
removed from the interior of the forms before the concrete is placed. Compressed air shall be used
to clean the complete formwork and remove all traces of duct and debris before pouring concrete
the temporary holes shall then be closed.
The surface of the forms to be in contact with the concrete shall be coated with a reliable coating
that will effectively prevent the adherence of concrete and will not stain the concrete surfaces.
After each use, the surfaces of forms which have been in contact with concrete shall be cleaned of
mortar and any other material sticking to them, then well wetted and treated with form oil approved
by the Employer.
The Contractor shall provide commercial form release agent that will not bond with, stain or
adversely affect concrete surfaces and will not impair subsequent treatment of concrete surfaces.
4.12
Openings / Inserts
Contractor shall provide all required openings, pockets, inserts as detailed in drawings.
The
Contractor shall provide required material and labour for fixing and supporting during concreting. In
its quoted price, it is imperative to consider that all openings and pockets shall be de-shuttered with
care and all corners of openings shall be preserved, ie shall be in correct line and level. After
concreting the openings shall be secured against any accident by proper covering and guard rail,
warning notice, lighting, etc for which no extra cost is payable to the Contractor.
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SECTION - 8
STEEL REINFORCEMENT
1.1
Related Works
A. Concrete Formwork
B. Cast in-situ Concrete
3.1.a
Applicable Standards
IS - 432
Specification for Mild steel and medium tensile bars and hard drawn
steel wire.
IS - 1139
Specification for hot rolled mild steel, medium tensile steel and high
yield strength steel deformed bars for concrete reinforcement.
IS - 1566
Specification for plain hard drawn steel wire fabric for concrete
reinforcement
IS - 1785
Specification for plain hard drawn steel wire for prestressed
concrete.
IS - 1786
Specification for cold twisted steel high strength deformed bars for
concrete reinforcement.
IS - 2080
Specification for high tensile steel bars used in prestressed concrete
IS - 2751
Code of practice for welding of mild steel structures are folded plates
IS - 2502
Code of practice for bending and fixing of bars for concrete
reinforcement
1.2
Steel Grades
Reinforcements for concrete may be from any of the “grades” of steel indicated below,
conforming to the relevant Indian Standards and their latest amendments mentioned against
each:
Grade
Description
Conforming to
Fe 250
Mild Steel
IS 432 (Part I)
Fe 490
Hard drawn steel wire
IS 432 (Part II)
Fe 415
High strength deformed/ ribbed steel
IS 1786
Fe 500
High strength deformed / ribbed steel
IS 1786
Fe 550
High strength deformed / ribbed steel
IS 1786
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Reinforcing steel may be any of the following types:
Type I
Plain round bars (PR)
Type II
Welded wire Fabrics (WWF)
Type III
Cold Twisted Deformed Bars / Corrosion resistant bars. (CTD-CR)
Type IV
Thermo-Mechanically Treated Ribbed bars (TMT)
Type V
Thermo-Mechanically Treated Ribbed Corrosion Resistant bars
(Copper) Bearing (TMT-CR)
1.3
BIS Certification
Material received at the Site shall have BIS Certification mark. Such bundle or coil containing
the bars shall be suitably marked with BIS Certification mark. Bars shall also be marked to
identify categories. This shall be done as per IS: 1387.
In case bars are without BIS Certification mark, the manufacturer shall give a certificate stating
the process of manufacture, chemical composition and mechanical properties.
Each
certificate shall indicate the number or identification mark of the cart to which it applies,
corresponding to the number or identification mark to be found on the material.
All reinforcements shall be free from loose mill scale, excessive rust, loose rust, pitting, oil,
grease, paint, mud or any other foreign deleterious material present on the surface. Cleaning
should be done to the satisfaction of the Employer / Employer’s Representative .
Each batch of steel brought to the Site shall be tested prior to use. Cost of all tests shall be
borne by the Contractor.
Material acceptable as per IS Specifications will be allowed into the Project. All rejected
material shall be removed from the Site by the Contractor within 30 days of its rejection. If the
same is not done, the Employer can get work done by third party at the Contractor’s risk and
cost shall impose a penalty of Rs 500 (Rupees Five Hundred only) per metric ton per day.
This will be without any appeal and shall not be subjected to arbitration.
1.4
Storage
Reinforcement bars received at the Site shall be stored on hard, concreted platform and clear
of the ground to a minimum of 200 mm with the use of timber sleepers or any other means.
Reinforcements shall be kept covered by tarpaulins or plastic to avoid excessive corrosion or
any other contamination. It is advised to follow storage methods as described in IS: 4082.
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Reinforcement steel shall be stored in such a manner as to avoid distortion and to prevent
deterioration and corrosion. Prior to assembly of reinforcement no account any oily substance
shall be used for removing the rust.
1.5
Quality Assurance
a.
Supervisory staff shall have qualification and experience in the above field.
b.
Welders qualified and having approved certificates for welding shall be employed.
1.6
Handling
a. Bend / rebend test requirements shall conform to the following and shall be based on
1800 bends of full size bars around pins.
Bar diameter (mm)
Pin diameter for test bend
10, 12,16
3.5 x bar dia
20, 22, 25
5.0 x bar dia
28, 30, 32
7.0 x bar dia
b.Spacers of same dia shall be used with any of the following:
i. Wire
ii. Precast concrete
iii. Moulded plastic
Spacer material shall be of durable quality and shall not lead to corrosion of reinforcement or
spilling of concrete.
Precast concrete spacers shall be of the same mix as that of surrounding concrete.
c. Tying wire shall be of 18 G black annealed mild steel wire or other approved type double
fold to tie the reinforcements.
d. Cover blocks shall be non-corrosive material such as plastic, but not wooden or broken
bricks or stone. Specially made concrete blocks shall be used. Such cover blocks shall be
cast from concrete and not from cement mortar; strength of these blocks shall be equal to
the concrete in use.
e.Binding wire for fixing reinforcement shall be either no.16 gauge soft Galvanised annealed
iron wire, or no.18 gauge stainless steel wires.
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1.7
Unit Weights:
Unit weights payable per meter shall be as follows:
6 mm ∅
0.22 kg/ rm
8 mm ∅
0.39 kg/ rm
10 mm ∅
0.62 kg/ rm
12 mm ∅
0.89 kg/ rm
14 mm ∅
1.21 kg/ rm
16 mm ∅
1.58 kg/ rm
18 mm ∅
2.00 kg/ rm
20 mm ∅
2.47 kg/ rm
22 mm ∅
2.98 kg/ rm
25 mm ∅
3.85 kg/ rm
28 mm ∅
4.83 kg/ rm
32 mm ∅
6.31 kg/ rm
36 mm ∅
7.99 kg/ rm
40 mm ∅
9.86 kg/ rm
1.8
Execution
1.8.1
Cutting and Bending
a.
Flame cut and hot bending is absolutely forbidden.
b.
Cut and bend reinforcement to approved shop drawings and details shall be
used.
c.
Bars to be cold-bend, either mechanically or by hand, but to correct radius using
proper tools, machine and platform and confirming to IS 2502-1963.
d.
Do not rebend without approval. In case of re bending, care shall be taken that
the rating of bend is not less than 4 x bar dia at construction joints for plain steel
bars and 6 x bar dia for high strength bars.
e.
Reinforcement projecting from concrete shall not be bent without approval.
Bar bending schedule to be submitted for approval of the Structural Consultant to the
Employer prior to commencement of any cutting, bending and binding of steel at site.
F
Cracked end of bars shall not be used on this Project.
g.
Bars should be inspected for visible defects such as cracks, brittleness, excessive
rust, loose mills scale, etc.
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1.8.2
a.
Welding
Do not weld reinforcement unless authorized by the Employer / Employer’s
Representative and recommended by the manufacturers.
b.
Site welding shall be done with suitable safeguards and techniques.
c.
Welding, if approved, may be used for:
i. Lapping reinforcement in position
ii. Fixing reinforcement to other steel members.
d.
The length of run deposited in a single pass shall not exceed 5 x bar diameters. If a
longer welded length is required divide into sections with the space between runs not
less than 5 x bar diameters.
e.
Welded joints:
i.
Shall not be made at bends in reinforcement.
ii.
Stagger joints in parallel bars of principal reinforcement unless otherwise approved.
iii.
The distance between staggered joints shall not be less than the end anchorage length
joints.
1.8.3
Mechanical Splicing
a.
To comply with ISI 456-2000. ACI 318-1983 and ACI 439-3R-83
b.
Use as indicated in structural drawings.
c.
Consultant has to approve mechanical splices before using it at site.
Inspection
a.
Ensure that the reinforcement placing is checked by Employer / Employer’s
Representative .
b.
Ensure that the Formwork to receive the reinforcement is clean and free from debris.
c.
Cracked end of bars to be cut out.
1.8.4
Anchoring
Anchoring of bars and stirrups shall be provided exactly as detailed in the structural drawings
or as directed by Employer / Employer’s Representative .
In case of reinforcement steel in tension, deformed bars may be used without end anchorage
provided the development length requirement is satisfied. Hocks shall normally be provided
for plain bars in tension. Development length of the bars shall be determined as per relevant
clauses of IS: 456 - 2000.
The anchorage length of straight bar in compression shall be equal to the Development length
of the bars in compression as specified in relevant clause of IS: 456 - 2000.
1.8.5
Lapping of Bars
Laps shall be strictly as per the structural drawing or as directed by the Development
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Manager/Structural Consultant. For general guidance the following principles shall be followed
as given in IS: 456 - 2000
•
As far as possible bars of the maximum length available shall be used.
•
Laps shown on drawings or otherwise specified by the Structural Consultant will
be based on the Contractor using bars of maximum length.
•
In case Contractor wishes to use bars of shorter length, laps shall be provided at
the Contractor’s expense in the manner and the locations approved by the
Structural Consultant.
•
Splices shall be provided as far as possible away from the sections of maximum
stress and be staggered.
•
Not more than half of the bars shall be spliced at a section
•
If more than half of the bars shall be spliced at a section, special case shall be
ensured such as increasing length of lap or closer spacing of stirrups around the
length of splice.
•
Lap splice shall not be used for bars having diameter larger than 36 mm. For
larger diameters bars it may be welded. Lap length including anchorage value of hooks in
flexural tension shall be La (as defined in Article 25.2.1 of IS: 456-2000) or 30 times the
diameter of the bar whichever is greater and for direct tension 2La or 30 times the diameter
of the bar whichever is greater. The straight length of lap shall not be greater than 15D or 20
cm, whereas D is the diameter of the bar.
•
Lap length in compression shall be equal to the development length in
compression calculated as described in relevant clause of IS: 456-2000 or as specified in the
structural drawing but not less than 24 times the diameter of the bar.
•
Overlapping bars shall not touch each other and these shall be kept apart with
concrete between them by 25mm or 1.25 times the maximum size of the coarse aggregate,
whichever is greater.
•
When above is not possible, the overlapping bars shall be bound together at
intervals not exceeding twice the diameter of such bars with two strands of annealed binding
wire of 0.90mm to 1.6mm diameter twisted together tightly.
•
As and when necessary welded laps shall be proved as specified by the
Structural Consultant.
1.8.6
Securing Reinforcement
a.
Adequately secure with tying wire or approved steel clips.
b.
Bend the tying wires well back clear of forms.
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1.8.7
Concrete Cover
a.
Shall be in accordance with ISI: 456-2000 and as per the instructions in structural
drawings.
i.Footings, retaining walls and Similar members in
contact with earth but not cast against earth
- 50 mm
ii.
Slabs
- 20 mm
iii.
Walls, ribs
- 20 mm
iv.
Beams:
v.
vi.
vii
1.8.8
For main bars
- Min.25 mm or dia. of the bar
For stirrups
- 15 mm
Columns
- 40 mm
Columns less than 20 cms
- 25 mm
Water tanks:
In contact with water
- 40 mm
In contact with air
- 20 mm
Walls in contact with water / Earth
- 40mm
Spacers Chairs and Other Supports
a.
Provide necessary supports to maintain reinforcement in its correct position.
b.
Provide spacer bars of same diameter as longitudinal bars but not less than
25mm diameter between two layers at 1.5 mm centers except where bundled
bars are detailed.
1.8.9
Precautionary Measures
a.
Do not insert bars into placed concrete.
b.
Do not damage forms and form linings, if any when fixing reinforcement.
1.8.10 Adjustment and Cleaning
a.
Check reinforcement prior to and during placing concrete with particular attention to
the top reinforcement in Cantilever sections.
b.
Ensure that reinforcement is clean and free from corrosive pitting, loose rust, loose
mill scale, oil and other substances, which may adversely affect reinforcement
concrete or the bond between the two.
c.
Protect the projecting reinforcement from weather where the rust staining of exposed
concrete surfaces may occur.
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1.9
Measurements
The method of measurement shall be accordance with the IS: 1200 subject to the following.
Reinforcement shall be measured in lengths of bars as actually placed in position on standard weight
basis, no allowance being made in the weight for rolling margin. Wastage and binding wire shall not
be measured.Authorised overlaps and splices shall only be measured. Rate quoted shall include the
cost of welding if specified.
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SECTION - 9
MASONRY WORKS
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Materials
5.0
Scaffolding
6.0
Mortar
7.0
Brick Masonry
8.0
Hollow / Solid Block Masonry
9.0
Stone Masonry
10.0
Mode of Measurement
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SECTION - 9
MASONRY WORKS
1.00
SCOPE
1.01
This specification covers the general requirements for brick masonry, stone masonry
and concrete hollow / solid block masonry and allied works.
2.00
3.00
GENERAL REQUIREMENTS
2.01
The Contractor shall furnish all skilled and unskilled labour, plant, equipment,
scaffolding, materials, etc. required for complete execution of the work in accordance
with the drawings and as described herein and/or as directed by the Engineer-inCharge.
2.02
All workmanship shall be in accordance with the latest standards and best possible
practice. Masonry work shall be true to line & level as shown on drawings. All such
masonry shall be tightly built against structural members and bonded with dowels,
anchors, inserts, etc, as shown on the drawings.
2.03
The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the Safety Rules as specified
in the General Conditions of the Contract for ensuring safety of men and materials.
2.03
Any approval, instructions, permission, checking, review, etc. whatsoever by the
Engineer-in-Charge shall not relieve the Contractor of his responsibility and obligation
regarding adequacy, correctness, completeness, safety, strength, quality,
workmanship, etc.
CODES AND STANDARDS
3.01
All applicable standards, acts and codes of practice referred to shall be the latest
editions including all applicable official amendments and revisions. A complete set of
all these documents shall generally be available at site, with the Contractor.
3.02
List of certain important Indian Standards, Acts and Codes applicable to this work is
given below. However, the applicable standards and codes shall be as per but not
limited to the list given below :
IS : 383
Coarse and fine aggregate from natural sources for concrete
IS : 455
Portland slag cement
IS:456
Code of practice for plain and reinforced concrete
IS : 712
Building lines
IS : 1077
Common burnt clay building bricks
IS : 1124
Method of test for determination of water obsorption apparent
specific gravity and porosity of natural building stones
IS : 1127
Recommendations for dimensions and workmanship of natural
building stones for masonry work.
IS : 1489
Portland Pozzolana cement
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4.00
IS : 1597
Code
of
masonry.
practice
for
construction
IS : 1905
Code
of
practice
reinforced masonry.
IS : 2116
Sand for masonry mortars.
IS : 2185
Concrete
masonry
concrete blocks.
IS : 2212
Code of practice for brickwork.
IS : 2250
Code of practice
masonry mortars.
IS : 2386
Methods of test for aggregates for concrete
IS : 2572
Code
of
practice
for
hollow concrete block masonry
IS : 2691
Burnt clay facing bricks
IS : 3414
Code of practice
joints in buildings.
IS : 3696
Safety code for scaffolds and ladders.
IS : 4326
Code of practice for earthquake resistant design and
construction of buildings
IS : 8112
43 grade ordinary Portland cement
IS : 12894
Fly ash lime bricks.
SP : 20
Handbook on masonry design and construction.
for
units
for
for
structural
-
design
stone
use of un-
hollow
preparation
of
and
and
use
construction
and
installation
solid
of
of
of
MATERIALS
4.01
Bricks
Burnt clay bricks, for general masonry work, shall conform to IS:1077 and for face
brick work, shall conform to IS:2691. Fly ash lime bricks shall conform to IS:12894.
First class table moulded chamber burnt bricks of nominal size 8-3/4” x 4-1/2” x 2-3/4”
shall be used for general masonry work
Bricks shall generally conform to IS 1077-1992. In any case minimum crushing
strength shall not be less than 35 kg/sq.cm and water absorption shall not be more
than 25% by weight. The EMPLOYER shall have the right to reject bricks obtained
from any field where the soils have an appreciable quantity of sulphates and
chlorides. The specifications for cement, sand and water shall be same as described
herein before under cement concrete. Bricks shall be thoroughly soaked in water
before using till the bubbles ceases to come up. No half or quarter brick shall be
used except as closer. The closers shall be cut to required size and used near the
end of the walls. The walls shall be raised truly to plumb. The type of bond to be
adopted shall be decided by the EMPLOYER, but vertical joints shall be laid
staggered.
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Bricks shall be stacked on dry firm ground in regular tiers even as they are unloaded
to minimize breakage and defacement of bricks. Bricks of different class, selected for
various categories of use in the work, shall be stacked separately. Each stack shall
contain equal number of bricks, preferably not more than 3000.
Representative samples of bricks shall be submitted to the Engineer-in-Charge for
approval before supply to site and the approved samples shall remain with the
Engineer-in-Charge. All bricks proposed to be used shall conform to the approved
samples in all respects.
Bricks picked up at random from the stacks shall be tested as to ascertain to satisfy
the acceptability requirements as and when desired by the Engineer-in-Charge at the
Contractor’s cost.
4.02
Stones
The stone shall be of the type specified, such as granite, sand stone, quartzite and /or
best locally available stone which shall be subject to approval of the Engineer-inCharge. All stones shall be from approved quarries. These shall be hard, tough,
durable, compact grained, uniform the texture and colour and free from decay, flaws,
veins, cracks and sand holes. The surface of a freshly broken stone shall be bright,
clean and sharp and shall show uniformity of texture, without loose grains and free
from any dull, chalky or earthy appearance. Stone with round surface shall not be
used.
Stones showing mottled colours shall not be used for face work. A stone shall not
absorb more than 5% of its weight of water after 24 hours immersion. The type of
stone shall be as specified or shown on drawings and/or as instructed by the
Engineer-in-Charge. Stones used for masonry work shall conform to IS:1597 (part-I)
No soft stone shall be used for masonry or for filling purpose. The minimum crushing
strength of stone shall be 200 kg/sq cm unless otherwise specified.
Normally, stones used should be small enough to be lifted and placed by hand. the
length of stone, shall not exceed three times the height and the breadth on base shall
not be greater than three fourth of the thickness of wall not less than 15 cm. The
height of stone may be upto 30 cm.
Any stone not found upto the satisfaction of Engineer-in-Charge shall be removed
immediately from site by the Contractor.
Dressed stone for all facing, paving etc. shall be stored with special care to avoid
defacement of faces and edges or damp and rust stains.
4.03
Hollow / Solid Concrete Blocks
Manufacture
Mix
The Concrete mix used for blocks shall not be leaner than one part by volume of
cement to 6 parts of combined fine and coarse aggregate unless otherwise specified,
the concrete shall be of CC 1:2:4 by using 12 mm and down size aggregate.
Mixing
The concrete shall normally be mixed in a mechanical mixer. Mixing shall be continued
until there is a uniform distribution of the materials, and the mass is uniform in colour
and consistency.
Placing And Compaction
The mould shall be filled upto a height of above the mould appropriate to the machine
used, vibrated or mechanically tamped and struck off level.
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Immediately the block is made, it shall be released from the mould and removed with
the pallet to a covered shed, to protect it against sun and strong winds. The blocks
shall be stored in the shed until they are sufficiently hardened to permit handling
without damage but in no case shall this period be less than 12 hours.
Curing
The blocks hardened as above shall then removed from the pallets and placed in a
curing water tank or taken to the curing yard, where these shall be kept continuously
moist for atleast 21 days. When the blocks are cured in an immersion tank, the water
of the tank shall be changed atleast every 4 days.
The curing yard is a paved yard, which are provided with water fountains in the
centre. The blocks are stacked on the platform around the fountains, which work
continuously. The foundation tank are connected to an elevated water, storage tank,
if directed by the Engineer-in-Charge. Steam curing of blocks may be adopted
instead of normal curing by pressure or no pressure steam curing as directed by the
Engineer-in-Charges, for non pressure steam curing, the blocks shall be subjected to
the action of thoroughly saturated steam at a temperature of 38 to 54C for a period of
not less than 24 hours or when necessary, for such additional time as may be
necessary to meet the physical requirements.
Drying
After curing the blocks shall be dried under shade for a period of 4 weeks before
being used on the work. They shall be stacked with voids horizontal to facilitate
through passage of air. The blocks shall be allowed to complete their initial shrinkage
before they are laid in a wall.
Surface Texture and Finish
Concrete masonry units shall be given surface textures ranging from a very fine close
texture to a course open texture by proper selection, grading and proportioning of the
aggregate at the time of manufacture and as directed by the Employer / Employer’s
Representative . Colour may be introduced by incorporating non-bading mineral
pigments in the facing concrete, or by applying a coloured portland cement grout or
paint to the face of the units soon after they are removed from the moulds, all as
directed by the Engineer-in-Charge.
Physical Requirements
All units shall be sound and free of cracks or other defects which interfare with the
proper placing of the unit or impair the strength or performance of the construction.
Compressive Strength
The minimum compressive strength, being the average of eight units, and the
minimum compressive strength of individual units, when tested in the manner
described shall be as prescribed below :
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Physical Requirements IS 2185 ( Part – I ) : 2005
Type
Grade
1
Hollow
(Open
and
closed
cavity)load
bearing unit
Minimum Average
Compressive Strength of
Units
N/mm2
Minimum
Compressive Strength of
Individual Units
N/mm2
3
4
3.5
4.5
5.5
7.0
8.5
10.0
12.5
15.0
5
2.8
3.6
4.4
5.6
7.0
8.0
10.0
12.0
3.5
5.0
2.8
4.0
5.0
4.0
4.0
3.2
2
A(3.5)
A(4.5)
A(5.5)
A(7.0)
A(8.5)
A(10.0)
A(12.5)
A15.0)
B(3.5)
B(5.0)
Solid
Load
Bearing Unit
4.03
Density of Block
Kg/m2
C(5.0)
C(4.0)
Not les than 1
500
Less than
1 500 but not
less than 1 100
Not less than 1
800
Drying Shrinkage
The drying shrinkage of the units when unrestrained being the average of three units,
shall be determined in the manner described in method of test for the determination
of drying shrinkage shall confirm to IS 2185 – latest issue.
a)
Load – bearing light-weight concrete masonry units, hollow (open are closed
cavity) or solid.
Grade A
Grade B
b)
4.05
:
:
0.08percent, max; and
0.09 percent, max
Non-Load bearing light-weight – 0.09 percent, max. concrete masonry units.
Test Procedure
The blocks required for carrying out the tests laid down in this standard shall be taken
by one of the methods as given below :
a)
Sampling Blocks in Motion
Whenever practicable, samples of blocks shall be taken when the blocks are
being moved as in the case of loading, unloading, etc. The batch from where
samples are to be drawn shall be divided into a number of convenient portions
such that when one sample is drawn from each of these portions the minimum
number of blocks specified under 10.1 is provided.
b)
Sampling Blocks from a Stack
The number of blocks required for the test shall be taken at random from
across the top of the stacks, the sides accessible, and from the interior of the
stacks by opening trenches from the top. In either case, a sample of 20 blocks
shall be taken from every consignment of 5,000 blocks or part thereof of the
same size and same batch of manufacture. From these samples, the blocks
shall be taken at random for conducting the tests.
c)
Number of Tests
All the 20 blocks shall be checked for dimensions and inspected for visual
defects.
Out of the 20 blocks, 3 blocks shall be subjected to the test for blocks density,
8 blocks to the test for compressive strength, 3 blocks to the test for water
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absorption and 3 blocks to the test for drying shrinkage and later to the test for
moisture movement. The remaining 3 blocks shall be reserved for retest for
drying shrinkage and moisture movement if a need arises. The above tests
shall be carried out in accordance with IS : 2185 (Part – II) latest issue and no
extra payment will be paid for conducting the above tests.
4.06
Cement
The cement used shall be the Ordinary Portland cement conforming to and IS
: 8112. Unless otherwise specified ordinary Portland cement of 43 grade
conforming to latest IS - 8112 shall be used for all masonry and concrete
works.
The Contractor shall make his own arrangements for the storage of adequate
quantity of cement.
Cement shall be stored in closed weather proof sheds with raised wooden
plank flooring to prevent deterioration by damages or intrusion of foreign
matter away from walls.
5.00
4.07
Sand
Sand shall conform to IS : 383 and IS : 2116. Sand shall have fineness modulus
between 2.1 and 2.5. Sand shall be hard, durable, clear and free from dirt clay
organic materials or other impurities. Silt content of sand shall not exceed 5% by
volume. Sand containing any trace of salt shall be rejected.
4.08
Water
Water used for mortar and curing shall be clean and free from injurious amounts of
deleterious matter such as oils, acids, alkalis, sugar, organic materials etc. Potable
water is generally considered satisfactory for mixing mortar and curing.
4.09
Lime
Lime shall be stone lime and it shall conform to IS:712. Hydrated lime shall be mixed
with water to form a putty. This shall be stored with reasonable care to prevent
evaporation of water for atleast 24 hours before use. Quick lime shall be slaked with
enough water to make a cream and then stored with reasonable care to
prevent evaporation of water for atleast seven days before use.
SCAFFOLDING :
Unless otherwise instructed by the Engineer-in-Charge, double scaffolding having two sets of
vertical supports shall be provided for all building work. The supports shall be sound, strong
and tied together with horizontal pieces over which scaffolding planks shall be fixed. The
contractor shall be responsible for providing and maintaining sufficiently strong scaffolding so
as to with stand all loads likely to come upon it.
6.00
MORTAR
6.01
IS : 2250 shall be followed as general guidance for preparation and use of mortar.
Mixing of mortar shall be done in a mechanical mixer. Cement and sand shall be
mixed dry in specified proportions thoroughly and then water shall be added
gradually. Wet mixing shall be continued till mortar of the consistency of a stiff paste
and uniform colour is obtained. Only the quantity of mortar which can be used within
thirty minutes of its mixing shall be prepared at a time. Hand mixing may be allowed
by the Engineer-in-Charge on clean approved platform in special cases only.
6.02
Mortar shall be used as soon as possible after mixing and before it has begun to set
and in any case within thirty minutes after the water is added to the dry mixture.
Mortar left unused for more than thirty minutes after mixing shall be rejected and
removed from the site of work.
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6.03
7.00
Surplus mortar droppings while laying masonry, if received on a surface free from dirt,
may be mixed with fresh mortar if permitted by the Engineer-in-Charge, where
directed for addition of extra cement and this shall be implemented.
BRICK MASONRY :
7.01
7.02
Only cement-sand mortar shall be used. Lime shall be added for composite mortar
with specific approval of the Engineer-in-Charge.
Unless otherwise specified, mortar for brickwork having one or more brick thickness
shall be as specified in BOQ . Mortar for half-brick thick walls shall be 1 part cement
and 4 parts sand by volume. Richer mix proportion shall be used, whenever specified
or as per design requirement. Mortar shall meet the compressive strength
requirement as per IS:2250 and IS:1905.
Laying
IS:2212 shall be followed as general guidance for construction of brick masonry.
Bricks shall be soaked in water before use for a period generally not less than 6
hours so that the water just penetrates the whole depth of the bricks.
Bricks shall be laid in English Bond unless otherwise specified. Half or cut bricks shall
not be used except where necessary to complete the bond. Closer in such cases
shall be cut to the required size and used near the ends of the walls, next to quoin
headers.
Bricks shall be laid generally with frogs upwards. A layer of mortar shall be spread on
the full width and over a suitable length of the lower course. Each brick shall be
properly bedded and set home (in position) by gently tapping with the trowel handle
or with a wooden mallet. Its inside face shall be buttered with mortar before the next
brick is laid and pressed against it. On completion of a course, all vertical joints shall
be fully filled from the top with mortar. The thickness of joints shall be kept uniform
and shall not exceed 10 mm. Bricks shall be so laid that all joints are full of mortar.
All face joints shall be raked to a minimum depth of 15 mm by raking tools during the
progress of brickwork, when the mortar is still green, so as to provide proper key for
the plaster or pointing to be done. When plastering or pointing is not required to be
done, the joints shall be struck flush and finished at the time of laying.
Brickwork in walls shall be taken up truly plumb. All courses shall normally be laid
truly horizontal unless indicated to be laid on slope and all vertical joints shall be truly
vertical. Vertical joints in alternate courses shall come directly one over the other.
Brick wall shall be construed with atleast one plain face with proper alignment.
All connected brickwork shall be carried up simultaneously and no portion of work
shall be left more than one metre below the rest of the work. Where this is not
possible, in the opinion of the Engineer-in-Charge, the work shall be raked back
according to bond (and not toothed) at an angle not steeper than 45 deg. The work
done per day should not be more than one metre height
All iron fixtures, pipes, water outlets, hold fasts for doors and windows, etc. which are
required to be built into the brickwork shall be embedded in their correct position in
mortar or cement concrete as the work proceeds as per directions of the Engineer-inCharge.
All brickwork shall be built tightly against columns, floor slabs or other structural parts
and around door and window frames with proper distance to permit caulked joint.
Where drawings indicate that structural steel columns and spandrel beams are to be
partly or wholly covered with brickwork, the bricks shall be laid closely against all
flanges and webs with all spaces between the steel and brickwork filled solid with
mortar not less than 10mm in thickness.
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The top courses of all plinth, parapet, steps and top wall shall be laid with brick on
edge unless otherwise specified. Care shall be taken that the bricks forming the top
courses and ends of walls are properly radiated and keyed into position as shown on
the drawings.
Scaffolding shall be strong enough to withstand all the dead, live and impact loads
which are likely to come upon it. It shall also be so designed as to ensure the safety
of the workmen using them.
In case of joining old brickwork with new brick work, the old work shall be toothed to
the full width of the new wall and to the depth of quarter of a brick in alternate
courses. It shall be cleaned of all dust, loose mortar, etc., and thoroughly wetted
before starting new brick work. Thickness of each course of new work shall be made
equal to the thickness of the corresponding course of the old work by adjusting
thickness of horizontal mortar joints.
The face of the brickwork shall be cleaned on the same day on which brickwork is laid
and all mortar dropping removed promptly.
Template (bed-block) of plain or reinforced cement concrete shall generally be
provided to support ends of RCC beams. Top surface of the wall shall be suitably
treated as per direction of the Engineer-in-Charge so as to minimise the friction to
movement of the concrete slab over the
bearing.
Brickwork shall be protected from rain by suitable covering when the mortar is green.
Masonry work shall be cured by keeping it constantly moist on all faces for a
minimum period of seven days. Brickwork carried out during the day shall be suitably
marked indicating the date on which the work is done so as to keep a watch on the
curing period.
7.03
Half brick masonry
The work shall be done in the same manner, as mentioned in 7.02 except that all
courses shall be laid with stretchers. Unless otherwise specified the walls will be
provided with RCC (1:2:4) binders reinforced with 2 nos. of 8 mm tor steel bars and 6
mm MS tie bars at 230 intervals. The cost of half brick work shall include the cost of
reinforcement and form work for binders. RCC band shall be of size 115 mm wide x
80 mm high and shall be continuous, unless where broken by openings in walls, and
the R.C.binders should be provided at 1m intervals regularly.
7.04
Exposed brickwork
Exposed brickwork i.e brickwork in superstructure which is not covered by plaster
shall be as shown on the drawings and shall be done by specially skilled masons. All
courses shall be laid truly horizontal and all vertical joints shall be truly vertical.
Vertical joints in alternate courses shall come directly one over the other. Thickness
of brick courses shall be kept uniform and for this purpose wooden straight edge with
graduations indicating thickness of each course including joint shall be used. The
height of window sills, bottom of lintels and other such important points in the height
of the wall shall be marked on the graduated straight edge. Masons must check
workmanship frequently with plumb, spirit level, rule and string.
For all exposed brick work, double scaffolding having two sets of vertical supports
shall be provided. The supports shall be sound and strong, tied together with
horizontal pieces over which scaffolding planks shall be fixed.
If face bricks are specified on the drawings, the brickwork shall be in composite work
with face bricks on the exposed face and balance in standard bricks, but maintaining
the bond fully. Where face bricks are not specified, bricks for the exposed face shall
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be specially selected from available stack of bricks. All exposed brickwork on
completion of work shall be rubbed down, washed clean and pointed as specified.
Where face bricks are used, carborandum stone shall be used for rubbing down.
7.05
Reinforcing Anchorage
For external walls, the anchorage in the form of flats or rods from spandrel beams
and columns and any other anchoring and reinforcement as shown on the drawing
shall be adequately embedded in the masonry.
8.00
HOLLOW / SOLID BLOCK MASONRY
8.01
Laying
All Hollow / Solid block masonry work should be carried out as shown on the drawings
with set blocks, projections. Cuttings, toothings etc., wherever the projection of cement
mortar for pointing in the proportion of 1:5 shall be used. Mortar shall consists of
cement and clean, sharp coarse sand. The mortar mixed with high sulphate resistance
cement shall be used upto ground floor level and above Portland cement shall be used
confirming to IS 269 – Latest issue.
Sand shall be clean, not too fine, not to coarse and shall fall with in the grading bones I
to IV given in Table – III of IS 383 – latest issue. The silt content of sand shall not
exceed 5% by volume.
Water used for mixing mortar shall be in accordance with Clause 4.3 of IS : 456 –
Latest issue.
Unless otherwise specified, the size of blocks shall be as follows:
i.
ii.
iii.
Main walls: Length = 400 mm, Width = 300/200 mm and Depth 100 mm.
Partition Walls : Length = 400 mm, Width = 100 mm and Depth 100 mm.
Half length blocks shall be of 200mm length
iv.
and it shall be used for obtaining the bond and where absolutely necessary as
directed by the Engineer-in-Charge.
The blocks shall be bedded and jointed with mortar in such a manner as not to leave
voids. Each block shall be correctly bedded into position by topping with the handle of
the trowel, grouting of mortar slurry will not be allowed except where necessary for
special reasons and in such cases, prior permission of the Engineer-in-Charge shall be
obtained.
Care shall be taken that each coarse of block masonry work is truly horizontal and
perfect in bond and the face of the wall is straight, plumb and even. The mortar joints
shall be 12 mm thickness, except where extra thickness is required for the purpose of
bringing the block to the required height or level.
All junctions of main walls, partition walls and cross walls shall be carefully bonded into
the main walls. The rate of laying masonry will be upto a height of 100 cm per day if
cement mortar is used. Greater heights may be built only if permitted by the Engineerin-Charge.
During rains, the work shall be carefully covered to prevent mortar from being washed
away, should any mortar or cement be washed away, the work shall be removed and
rebuilt at the contractor’s expense.
Unless otherwise specified the Hollow / Solid block walls will be provided with RCC
1:2:4 binders 75 mm thick, reinforced with 2 nos. of 8 mm dia. mild steel bars with 6
mm dia. mild steel tie bars at 230 mm centres at every 1 metre interval from floor
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level. The cost of Hollow / Solid block work shall include the cost of reinforcement and
form work for binders.
9.00
10.0
STONE MASONRY
9.01
IS : 1597 shall be followed as general guidance for construction of stone masonry.
9.02
Mortar
Unless otherwise specified, mortar for stone masonry shall be 1 part of and 6 parts
sand by volume. Properties, preparation and use of mortar shall be same as specified
under clause 6.00.
9.03
Dressing of Stone
The dressing of stone shall be as specified below for individual types of masonry
work and it shall also conform to the general requirements for stone covered in
IS:1129.
a)
For Random Rubble Stone Masonry, stone shall be hammered the face, the sides
and the beds to enable it to come into close with the neighbouring stone. the bushing
on the face shall be 4 cm on an exposed face.
b)
For coursed Rubble Masonry (First sort) Face stones, shall dressed on all beds, and
joints, so as to give them approx. angular shape.
MODE OF MEASUREMENT
Unless noted otherwise in the bills of quantities, the method of measurement for various items
shall be generally in accordance with IS 1200….subject to the following.
Except where otherwise described, stone work and stone walling generally shall be given in
cubic metres and fascia work in square metres.
When measuring walls, the thickness shall be measured to the nearest one centimetre.
Deductions shall made as described in IS : 1200.
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SECTION - 10
WOOD WORK
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Samples and Shop Drawings
5.0
Materials
6.0
Doors, Windows and Ventilators
7.0
Panelling for Wall Lining and Partition
8.0
Installation
9.0
Hardware Fittings
10.0
Preservative Treatment
11.0
Mode of Measurements
12.0
List of approved brand / manufacturer of Materials
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SECTION - 10
WOOD WORK
1.00
SCOPE
This specification covers the general requirements for wood work.
2.00
GENERAL REQUIREMENTS
2.01
The contractor shall furnish all materials, labour, operations, equipment, tools and plants,
scaffolding and incidental necessary and required for the completion of all carpentry and
joinery work as called for in the drawings and Bill of Quantities.
2.02
The carpentry and joinery work shall include the provision of fixing of fastening
devices and hardware in accordance with the drawings and attached hardware
schedule. Hardware and other materials will be supplied by the contractor after
obtaining prior approval of the Engineer-in-Charge of samples for each item of
hardware.
2.03
The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the Safety Rules as specified
in the General Conditions of the Contract for ensuring safety of men and materials.
2.04
Any approval, instructions, permission, checking, review etc. whatsoever by the
Engineer-in-Charge shall not relieve the Contractor of his responsibility and obligation
regarding adequacy, correctness, completeness, safety, strength, workmanship etc.
3.00
CODES AND STANDARDS
3.01
All standards, specifications, acts, and codes of practice referred to herein shall be the latest
editions including all applicable official amendments and revisions.
3.02
List of certain important Indian Standards, Acts and Codes applicable to this work is
given below. However, the applicable standards and codes shall be as per but not
limited to the list given below :
IS : 205
Non-ferrous metal butt hinges
IS : 281
Mild steel sliding door bolts for use with pad locks
IS : 287
Permissible
purposes
IS : 303
Plywood for general purposes
IS : 848
Synthetic resin adhesives for plywood.
IS : 883
Code of
building
IS : 1003
Timber panelled and glazed shutters
IS : 1141
Seasoning of timber - Code of practice
IS : 1328
Veneered decorative plywood.
IS : 1659
Block boards.
moisture
practice
content
for
119
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4.00
IS : 2202
Wooden flush door shutters
IS : 2835
Flat transparent sheet glass.
IS : 3087
Wooden
purposes
IS : 3097
Veneered particle boards.
IS : 3809
Fire resistant test for structures
IS : 4021
Timber door, window and ventilator frames
particle
boards
(medium
density)
for
general
SAMPLES AND SHOP DRAWINGS
The contractor shall, before proceeding with the work, submit to the Engineer-in-Charge for his
approval complete samples of the various materials including hardware and fastening devices
and shop drawings and large scale details covering all joinery works.
5.00
MATERIALS
5.01
Timber :
Timber used shall be of type as stated in the Schedule and of best
quality. All timber shall be of natural growth and uniform in texture and shall be well and
properly seasoned. It shall be free from large, loose, dead, or cluster of knots, waves,
injurious open shakes, borer holes, rot, decay, knots, discolouration, soft or spongy
spots, hollow pockets with or centre heart and all other defects and blemishes.
Timber shall conform to IS 883.
The seasoning of timber shall be as laid down in IS : 1141.
5.02
Teak wood :
Teak should be from the forests of Dandeli and Mysore in Karnataka,
Malabar in Kerala, Ballarshah in MP, Bulsar in Gujarat. It shall have uniform colour
reasonably straight grains and shall be free from large loose dead knots cracks,
shakes, warp, twists, bends bore holes, sap wood. For first class no individual hard and
sound knot shall be more than 1 Sq.cm and the aggregate area of all knots shall not
exceed 1/2% the area of piece and for second class 1.5 Sq.cm and 2% respectively. It
shall be close grained and there shall not be less than 2 growth rings per cm width.
The wood shall be well seasoned. It shall be considered well seasoned if its moisture
content does not exceed the limits as per IS 287. The moisture content shall be
determined as per IS 287. Unless otherwise specified tolerance for door and window
frames and shutters should not exceed provisions in IS 4021 & IS 1003 (part I & II).
a)
b)
5.03
Frames
Planking, shutters etc.
14%
12%
Country wood & Malaysian Sal :
Country wood and Malaysian Sal are wood
that are not classified as teak wood, honey wood, nandi and mathi wood. It shall have
uniform colour, reasonably straight grains and shall be generally free from large loose
dead knots, cracks, shakes, warp, twists, bends, bore holes, sap wood. No individual
hard and sound knot shall be more than 1.5 Sq.cm and the aggregate area of all
knots shall not exceed 2% of the area of piece. It shall be close grained and there shall
not be less than 2 rings per cm width.
The wood shall be well seasoned. It shall be considered well seasoned if its moisture
content does not exceed the limits as per IS 287. The moisture content shall be
determined as per IS 287. Unless otherwise specified tolerance for door and window
frames and shutters should not exceed provisions in IS 4021 & 1003 - Part I & II.
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6.00
5.04
Laminated Particles Board:
Laminated particles board of approved shade bonded
with phenol formaldehyde with all cut edges provided with teak lipping 12 mm thick with
moisture proof coating with aluminium paint and chlorinated rubber paint along edges.
The particle board shall conform to IS 3087.
5.05
Veneered Particle Board : Particle board bonded with Phenol Formaldehyde resin
shall comply with the specification as per IS 3087 and shall have veneering on both
sides with teak veneer faces. The exposed surface of veneered boards on both sides
shall be polished fully.
5.06
Glass: All glass shall be of superior quality from approved manufacturer like
Pilkington, Ashahi, St.Gobain, or approved equivalent, having uniform refractive index
and free from flaws, speaks and bubbles. Sheet glass for glazing and framing
purposes shall conform to IS : 2835 latest edition. The glass shall be brought to site
in the original packing from the manufacturer and cut to size at site. The cut edges
shall be straight and free from chips, spalls or any other damages. Wherever clear
sheet glass is specified, it shall be flat drawn sheet glass and shall be atleast 4 mm
thick or as specified. Where wire glass is mentioned, it shall be thick rolled glass with
centrally embedded wire mesh or Georgian type. Where obscure glass is mentioned
it shall have a cast surface on one side. The Contractor shall submit samples of glass
for prior approval of the Engineer-in-Charge.
5.07
Putty : In general, the putty shall conform to IS : 420 latest edition. The putty shall be
of best quality from approved manufacturer. It shall be brought to site in the
manufacturer’s original packing. Quick setting putty shall be used for windows and
sashes except when glare reducing glass is used where it shall be of non-setting type.
DOORS, WINDOWS AND VENTILATORS
6.01
Doors, windows and ventilators etc. shall be in accordance with the drawing in every
detail and all joiner's work shall be accurately set out, framed and finished in a proper
workman like manner. Frames of doors, windows and ventilators, shutter styles and
rails shall be of best solid wood of quality specified in the schedule of quantities.
The scantlings shall be accurately planed smooth. Rebates, roundings and mouldings
shall be made as shown on the drawings. Patching or plugging of any kind shall not be
allowed.
Joints shall be simple, neat and strong. Framed joints shall be coated with suitable
adhesive like glue or synthetic resin before the frames are put together. All mortice and
tenon joints shall fit in fully and accurately without wedging or filling. The joints shall be
pinned with hard wood or bamboo pins of 10 mm to 12 mm dia. or rust resisting star
shaped metal pins of 8 mm diameter. All portions of timber abutting against or
embedded in masonry or concrete shall be treated against termites by giving a coat of
an approved wood preservative, for which no extra cost will be paid. Putty shall not be
used to cover any defects. Unless otherwise specified, all door frames shall have
six holdfasts. Holdfasts shall be provided to the ventilators if directed. Size of
holdfasts shall be 400 mm x 40 mm x 5 mm M.S. flat bent to shape with fish
tail and shall be fixed to frame with sufficient number of screws as directed. When
door/window frames are to be fixed to RCC column or RCC wall, holdfasts shall be
substituted by suitable arrangements such as coach screws, rawl bolts/grip bolts etc. to
secure frames to RCC column or RCC wall as directed by the Engineer-in-Charge.
The frame shall be fixed only after getting the approval of the Engineer-in-Charge.
6.02
Fire Resistence Door : The fire resistance door one hour / two hours fire rated or
as specified shall be provided. The fire rating to doors shall conform to PS 47648 and
IS 3809 and as approved by the Engineer-in-Charge.
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6.03
Toilet Doors
a)
External Doors : Laminate shall be provided on inner face and decorative
veneer or as per specification/ BOQ shall be provided on outer face of door shutters
unless otherwise specified in the Bill of Quantities and all as per manufacturer
specifications including necessary finishing and fittings etc.
b)Internal doors :
Laminate shall be provided on inner face and on outer face of
door shutters unless otherwise specified in the Bill of Quantities and all as per
manufacturer specifications including necessary finishing and fittings etc.
6.04
Frames : These shall be cut and planed from first class timber of respective kind and of
sizes as stated in the Schedule of Quantities or as detailed on the drawings, in the case
of main frames as well as sub-frames.
6.05
Architraves : Architraves shall be cut and planed from best quality seasoned
timber to sizes as shown in the drawings and fixed to the door or window frames
with wood screws. Screw heads shall be sunk into frames. The side abutting
the
frame shall be finished with a coat of wood primer.
6.06 Interior door shutters
a)
Flush shutters : Interior wood door shutters, unless otherwise noted or
specified, shall be 38 / 32 mm thick phenol formal-dehyde synthetic resin
thermo pressed flush shutters, teak veneered face on both faces as specified
The shutters shall conform to IS:2202 (Part-I).
Shutter make shall be
approved by the Engineer-in-Charge.
The solid core shall be wood laminate prepared from battens of well seasoned
and treated good quality wood having straight grains. The battens shall be
of uniform size of about 2.5 cm width. These shall be properly glued and
machine pressed together , with grains of each piece reversed from that of
adjoining one. The Longitudinal joints of the battens shall be staggered and
no piece shall be less than 50 cm. in length. Alternatively, the core shall be of
solid teak particle board. Edges of the core shall be lipped internally with first
class teak wood battens of 4 cm. minimum depth, glued and machine
pressed along with the core.
The core surface shall then have two or three veneers firmly glued on each
face. The first veneer (called cross band) shall be laid with its grains at right
angles to those of the core and the second and the third veneers with their
grains parallel to those of the core. The under veneers shall be of good quality,
durable and well seasoned wood. The face veneers shall be of minimum 1 mm
thickness and of well matched and seasoned first class teak, laid along with
grains of the core battens. The combined thickness of all the veneers on
each face shall not be less than 4 mm. Thermosetting synthetic resin
conforming to I.S. 303 or moisture-proof plywood grade M.P.F.I. shall be used
in manufacture. All doors shall have external lipping alround 6 to 10 mm
thick in addition to internal lipping.
Block boards and ply for various items of work called for shall be of approved
make. Unless otherwise shown all block boards and ply shall be teak
veneered faced on both faces.
Samples of flush doors, block boards, etc., shall be submitted to the
Engineer-in-Charge for his approval and all shutters, etc., to be used in the
work shall conform to the approved sample in all respects.
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7.00
b)
Panelled Shutters :
i)
The thickness of the panels shall be 15 mm for 25 mm shutters and
20
mm for shutters of larger thickness. The edges of the panels shall be tapered
symmetrically on all the sides for insertion into the styles and rails. The depth of
rebate in frames for housing the shutters shall in all cases be
1.25 cm and
the rebate in shutters, for closing, in double leaf shutter doors,
andwindows
shall not be less than 2 cm. The edges of styles and rails all
round
the
panels shall be moulded, rounded or chamfered on both faces of the shutter
as directed by the Engineer-in-Charge.
ii)
Factory made, kiln seasoned and chemically treated panelled shutters - The
thickness and quality of wood of the shutters shall be as indicated in the item.
Styles and rails of teak wood and panels made of 12 mm thick teak veneered
particle board or similar material bonded with phenol formaldehyde synthetic
resin adhesive conforming to IS : 3097 shall be used.
PANELLING FOR WALL LINING AND PARTITION
The boarding for wall lining shall be of commercial plywood, black board, plywood with teak
veneer, laminate or any other materials as directed; fixed on to the frame. The boarding shall
be of sizes shown in the drawing or as directed. In case of partitions, the facing materials like
plywood with approved teak veneers, or formica, or any other material as directed shall be fixed.
8.00
INSTALLATION
All timber for joinery work or wrought form work shall be of best Indian Teakwood unless
otherwise specified and or specified quality, carefully selected free from sap and subject to
inspection and approved before delivery. All teakwood to be used in this work shall be
seasoned in an approved manner.
All workmanship pertaining to wood work shall be of best standard and all joinery work shall fit
freely and without wedging or filling and of the kind directed by the Engineer-in-Charge. Wood
work in frames shall be wrought and all frames joints shall be put together with white lead and
pinned with hard wood pins. All exposed faces of joinery shall be thoroughly planed. Jointing
shall be by means of mortice and tenon, dovetailed joints or as directed by the Engineer-inCharge.
The joiner work shall be framed and put together immediately but not to be wedged up until
required for fixing. The approval of the Engineer-in-Charge shall be obtained before any
primer coat is applied.
The whole of joinery to be finished to the dimensions and sizes indicated in the drawings are
subject to a tolerance to 1.50 mm of each planed face, but no allowance shall be given to
flush doors, shutters, ply and other manufactured board etc.
All black boards etc. shall correspond to respective IS specifications. Flush doors shall
correspond to relevant IS specifications. Samples of all black board, plywood, flush doors,
etc. shall be got approved by the Engineer-in-Charge before placing order. All such items shall
be of standard manufacture of reputed quality. Unless otherwise specified, all flush shutters
shall be teak veneered on both sides. All flush shutters shall be of solid core and shall be
provided with teakwood external lipping.
If after execution any shrinkage or bad workmanship is found, the Contractor shall forthwith
replace or refix the same at his own cost, all as directed by the Engineer-in-Charge.
Rate quoted shall include for all framing, usual waste and cuttings and no extra rates or
claims will be entertained on this account.
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The rate for wood work shall include the cost of all sawing, planing, jointing, framing, labour and
materials for raising and fixing and all workmanship and fixing and supplying of all strips, bolts,
nails, trenails, spikes, keys, wedges, pins, screws etc. necessary for the framing as per
specification and drawings. Edges of the beams, joists, posts, frames etc. shall be rounded,
moulded or chamfered as directed without extra charges.
The Contractors shall be responsible to deliver all items at site of work. The Contractor will
submit a programme of work in such a way that requirements for each floor commencing
from ground floor is completed before the requirement of the next floor and arrange to have
them fixed in position as the General Builders work progresses.
Timber in contact with masonry or concrete shall be treated with solignum paint or any
approved anti-termite treatment before fixing.
The Contractor will be making necessary holes in concrete and masonry for fixing in
position and grouting. The Contractor will be responsible for the proper fixing of partitions true
to plumb and alignment until completion and grouting pockets with cement concrete and make
good affected portions without claim to any extra.
The iron monger fittings shall be of heavy type cast brass oxidised and of approved
manufacture. Samples of all iron monger items shall be got approved by the Engineer-inCharge prior to procurement.
9.00
HARDWARE FITTINGS
All hardware fittings and fixtures shall be made with structural properties to sustain safety and
withstand strains and stresses to which they are normally subjected to such as opening and
closing, wind pressure etc. The fittings shall generally conform to relevant specifications.
They shall be made true, clean, straight, with sharply defined profiles and unless otherwise
shown or specified, with true smooth surfaces and edges, free from defects, screw holes shall
be counter sunk to suit the head of wood screws.
The metal shall be treated with finish as specified in the Bill of Quantities.
9.01
Butt Hinges
These shall be treated with finish as specified in the Bill of Quantities.
M.S. Butt Hinges shall conform generally to the latest version of I.S.205.
M.S Butt hinges shall be manufactured from M.S sheets of approved gauges. Hinges
shall be finished as specified in the respective items. The size of butt hinges shall be
taken as length of the hinge.
9.02
Aldrops
These shall be of anodised aluminium or as specified and shall be capable of smooth
sliding action. Aldrops shall be finished as specified and shall conform generally to the
latest version of I.S.281.
In case of single leaf door, hole of suitable size shall be made in the door frame and a
plate cut to shape shall be fixed at the face of the hole. The size of aldrop shall be taken
as the length of the rod.
9.03
Sliding bolts/Latches
These shall be of S.S.Brass or as specified and shall be capable of smooth sliding
action. These shall be finished as specified. The size of latch shall be taken as the
length of the bolt catch.
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9.04
Tower Bolts
These shall be as specified viz., anodised aluminium tower bolts from external section.
In the case of brass and aluminium tower bolts, steel spring and ball shall be provided
between the sheet and the barrel.
The size of tower bolts shall be taken as the length of barrel without top socket. The bolt
shall be finished as specified.
9.05
Handles:
These shall be as described in the Bill of Quantities and finished as specified.
10.00
PRESERVATIVE TREATMENT
All wood work in contact with masonry shall be painted with approved sphalt or bitumen paint
before placing. Care shall be taken to keep exposed faces clear from tar, etc. Tarfelt shall be
used to isolate wood from masonry wherever practically possible. All concealed wood
members in ceiling, partitions, cabinet work, etc., shall be treated fully and liberally with
solignum before placing in position.
11.00
MODE OF MEASUREMENT
Unless noted otherwise in the bills of quantities, the method of measurement for various
items shall be generally in accordance with IS 1200 subject to the following:
1) All work shall be measured net as fixed. No extra measurement will be given for
shape, joints, splayed, meeting stiles of doors and windows and shall be measured in unit of
square metre. Door frames shall be in cubic metre, if measured separately.
2) Area over one face inclusive of exposed frame thickness (excluding width of cover
mould) shall be measured in case of doors, windows and ventilators when frames are
included in the item. Portions embedded in masonry or flooring shall not be measured.
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SECTION – 11
FLOORING AND DADOING WORKS
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes & Standards
4.0
Materials
5.0
Storage Materials
6.0
Base Concrete
7.0
Workmanship
8.0
Preparation of the Base Surface
9.0
Granolithic Flooring
10.0
Ceramic Tiles
11.0
Cement based Colour and patterned Tiles
12.0
Shahabad, Tandur, Kotah and Cuddapah Flooring
13.0
Granite flooring / Dadoing
14.0
Acceptance Criteria
15.0
Mode of Measurement
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FLOORING AND DADOING WORKS
1.0
SCOPE
1.01
2.00
3.00
This specification covers the general requirements for flooring and dadoing of various
types of finishes including supplying, installation, finishing, curing, testing,
protecting, maintaining until handing over.
GENERAL REQUIREMENTS
2.01
The Contractor shall furnish all skilled and unskilled labour, plant, equipment,
scaffolding, materials etc., required for complete execution of the work in accordance
with the drawings and as described herein and / or as directed by the Engineer.
2.02
The Contractor shall follow all safety requirements / rules during execution of the
work.
2.03
The Contractor should have adequate experience in execution of such works.
Alternatively, he should engage specialised agency for executing the work after
obtaining approval from the Engineer.
2.04
All works shall be carried out as per relevant Indian Standard Specifications, as per
the instructions of manufacturer and as directed by Engineer. The Contractor shall
carryout all works including preparation of base, chipping extra concrete, roughening
of surface and skin removing, cleaning, screeding, levelling, curing, protecting the
slab / tile by using pop over plastic sheet etc.
2.05
The commencement, scheduling and sequence of the finishing works shall be
planned in details and must be specifically approved by the Engineer, keeping in
view the activities of other agencies working in the area. However, the Contractor
shall remain fully responsible for all normal precautions and vigilance to prevent and
damage whatsoever till handing over to the Employer.
2.06
Only approved make, colour, size of tiles / slabs to form any pattern in combination of
any specified colour shall be used.
CODES AND STANDARDS
3.01
IS Codes
Some of the important applicable Indian Codes for this section are listed below.
Latest editions of these codes shall be followed:
IS : 1237
-
Cement concrete flooring tiles
IS : 4457
-
Ceramic unglazed vitreous acid resisting tiles
IS : 5491
-
Code of practice for
concrete flooring topping
IS : 13753
-
Dust pressed ceramic tiles with water absorption of E 10%.
IS : 13755
-
Dust pressed ceramic tiles with water absorption 3% of E 6%
(Group B II.a)
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4.00
MATERIALS
4.01
Cement
:
4.02
Coarse Aggregate
As specified
IS: 383.
4.03
Fine Aggregates:
As
4.04
Water
As specified under concrete works generally potable water
4.05
Special Materials
:
Ordinary Portland cement of 43 Grade conforming to IS :
8112 and as specified under concrete work of Technical
Specification.
under
concrete works and conforming to
specified
under
concrete
and conforming to IS : 383.
works
Materials required for individual finishing
items are specified under
respective items. In general, all such materials shall be in accordance with the
relevant IS Codes where applicable. In all cases these materials shall be of the best
indigenous quality unless specified otherwise.
The materials for finishing items must be procured from well-reputed
approved specialised manufactures and on the basis of approval of samples by the
Engineer. The materials shall be ordered, procured and stored well in advance to
avoid possible delays to the construction programme.
5.0
STORAGE OF MATERIALS
Storage of cement, aggregates and water shall be as specified under concrete works.
6.0
BASE CONCRETE
6.01
7.00
The base concrete may be deposited as per specification and as directed. Before
placing the concrete the sub-base shall be properly wetted and well rammed. The
concrete shall then be deposited between the forms where necessary, thoroughly
compacted and the surface finished level with the top edges of the forms. The
surface of base concrete shall be left rough to provide adequate bond for the topping.
Two or three hours after the concrete has been laid in position, the surface shall be
brushed with a hard brush to remove any scum or laitance and swept clean so that
coarse aggregate is exposed.
WORKMANSHIP
7.01
8.00
Workers specially experienced in particular items of finishing work shall carry out the
work. Where such workers are not readily available, experienced supervisors
recommended by the manufacturer shall be engaged with the prior permission and
based on approval of the Engineer. In particular cases, Engineer may desire the
installation of finishing items by the manufacturer. This arrangement shall be made
by the Contractor.
PREPARATION OF THE BASE SURFACE
8.01
For all types of flooring, skirting, dado, the base (base concrete / structural slab /
masonry wall / concrete wall etc.) to receive the finish shall be adequately roughened,
joints raked, thoroughly cleaned of all dirt, grease, loose particle, caked mortar
droppings, and laitance, if any by scrubbing with coir or steel wire brush before the
operation of laying the topping is started. Where the concrete is hardened so much
that roughening the surface by wire brush is not possible, the entire surface shall be
roughened by chipping or hacking and the skin removed. The surface shall be
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thoroughly cleaned and soaked with water, atleast for twelve hours and the surplus
water shall be removed by mopping immediately before the topping is laid in position.
The prepared surface has to be approved by the Engineer before commencing the
finishing work.
9.00
GRANOLITHIC FLOORING
9.01
General
The work shall be carried out in accordance with Indian Standard
Specification 5491 latest.
The flooring shall be of specified thickness and shall consist of CC 1:1.5:3
granolithic flooring. Floor finish shall be divided into suitable panels so as to reduce
and avoid the risk of cracking. The granolithic flooring shall be laid with the specified
strips in panels not exceeding 20 Sqm in plan. The screed strips shall be fixed on
the base concrete dividing it into suitable panels not exceeding 20 Sqm in plan. The
intermediate panels shall be filled in after one or two days. If glass or aluminium or
other metal strips are provided for effective separation of panels, the topping may be
laid in all the panels simultaneously or as specified.
9.02
Laying
a. Before the operation of laying the topping is started, the surface of base concrete
shall be prepared as described earlier, screed strips shall be fixed over the base
as divided.
b. The flooring concrete shall be of using 6 to 10 mm graded crushed granite stone.
The ingredients shall be thoroughly mixed with sufficient water to obtain the
required plasticity. The free water on the surface of the base shall be removed
and a coat of cement slurry of the consistency of thick cream shall be brushed on
the surface.
c.
The prepared concrete shall be laid immediately after mixing on the fresh grouted
base. The concrete shall be spread evenly and levelled carefully and compacted.
Then the surface shall be tested with the straight edge and mason’s spirit level to
detect any inequalities in the surface. Low places shall be filled, humps removed
and the whole surface again levelled. The layer shall be thoroughly compacted to
the finished thickness by ramming and power trowelled and allowed to set. Just
sufficient trowelling shall be made to give a level surface. The surface should not
be over trowelled as excessive trowelling will bring the cement to the surface
which shall be strictly avoided. When the initial set takes place further
compaction by power trowelling shall be done and final trowelling shall be done
well before the topping becomes too hard.
d. The surface shall be trowelled three times at intervals so as to produce a uniform,
hard and smooth surface. No mortar or cement will be allowed to be added in
this process.
The screed strips should be removed the next day after the concrete has been
deposited in the panels and the edges of panels shall be examined for any
honeycombing or undulation which, if found, shall be repaired straight and
smooth by cement mortar; if the intermediate panels are not to be filled the next
day, the screed strips shall then be cleared and put back against the edge of
panels till the concrete in the alternate panels is to be deposited. When the
concrete is being deposited in the alternate panels the screed strips shall be
removed. When the concrete is being compacted in new panels, care shall be
taken to avoid damage to the panels already laid.
When desired by the
Engineer, the surface while still ‘green’ shall be intended by pressing strings.
The markings and forming a groove shall be of even size and depth, in straight
lines and the panels shall be of uniform and symmetrical patterns.
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9.03
Curing - As soon as the surface is hard enough, it shall be covered with sacking or
sand and kept continuously wet for a period of atleast one week.
9.04
Protection - The surface shall be protected with a layer of pop to a required
thickness over a plastic sheet.
10.0
CERAMIC TILES
10.01
Types of Ceramic Tile
a) Glazed Ceramic Tiles
Glazed ceramic tiles shall be highly pressed, single fired, red body, top glazed
white or coloured, plain or with designs.
The body of glazed ceramic tiles should consist of high grade clay and minerals
and well pressed in hydraulic presses and glaze should be a combination of
different minerals. Varied combination of the body materials, glaze coating and
the firing temperature will give tiles of varied strength, abrasion resistance,
surface hardness, antiskid properties. The top surface shall be glazed with stable
gloss / semi gloss / matt finish of uniform colour and texture and free from flaws,
cracks, chips, craze, specks, crawling or other imperfections. These shall be
sound, true to shape with true and straight edges, non-absorbing and non-fading.
A fractured section shall appear fine grained in texture, dense and homogenous.
The edges and the underside of the tiles shall be completely free from glaze so
that these may adhere properly to the surface below.
The under side of tiles shall have ribs or indentations for better anchorage with
the base mortar / adhesive specified
The group and quality of tiles specified in the bill of quantities and as shown on
the drawings shall be used as directed by the Engineer, even though the group of
tiles specified below :
i)
Floor Tiles
These tiles should have high strength, good resistance to wear and tear, low
water absorption and sufficient antiskid properties and shall conform to IS :
13755 and BLLA EN177 (European Standard). Based on the properties of the
glaze and their hardness, floor tiles are categorized abrasion resistance wise
as Group – II to V / V+. According to the intensity of foot traffic, the tile group
shall be selected and used as given below.
Group II tiles shall be used for areas destined to medium foot traffic, to be
trod on with leather or rubber footwear.
Group III tiles shall be used for areas destined to frequent foot traffic with
medium abrasion.
Group IV tiles shall be used for areas destined to a strong passage and
intensive foot traffic with heavy abrasion.
Group V – Floor tiles having very high Abrasive Resistance shall be used for
areas destined to high intensive foot traffic with heavy abrasion.
ii)
Wall tiles
Ceramic wall tiles shall be single fast fired tiles having medium water
absorption and high strength characteristics. These tiles should have high
glaze and better adhesion to wall and shall conform to IS : 13753 and EN 159
standards. Wall tiles shall be glossy / semi glossy / matt glaze finish, white or
coloured, plain or printed, special printed and premium printed. These tiles
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shall be sound, uniform colour, true to shape with true and straight edges and
non-fading.
b)
Vitrified (Unglazed) Ceramic Unpolished / Polished Tiles
These tiles are of different shades having monolithic body which is pressed in
very high tonnage press and fired to high temperature. The tiles shall be
homogeneous and compact through out the entire body with very high
strength, low porosity and extreme surface hardness, high resistance to
abrasion resistant to chemicals etc. and shall conform to IS : 4457 and EN 98
standards. The tiles shall be sound, non-absorbing flat and true to shape
with straight edges. The tiles shall be with smooth surface or textured antiskid finish surface. The tiles should be free from any warping, deformation
any chipping and any scratches. The tiles shall be in absolute level. The
under side of tiles shall have ribs or indentations for better anchorage with
the base mortar / adhesive as specified.
Polished vitrified ceramic floor tiles shall be homogeneous heavy and tough
with highly reflective polished surface but non-slippery. The tiles shall be in
different shades and shall have uniform colour, size and thickness.
10.05
Samples
Samples of each type / design / finish / print / size / colours of tiles shall be submitted well in
advance to the Engineer for approval at Contractor cost.
Approved sample tiles will be retained by the Engineer. All tiles procured should be
exactly as per approved samples. Tiles shall be procured from a single approved
source / manufacturers who can provide products of consistent quality and physical
properties. The manufacturer of tiles should be an approved company specializing in
ceramic tiles.
Tiles of approved make, colour, design, finish, size etc. as stipulated in item
description and /or as shown in the drawings only should be procured and used on
the works.
10.03 Storage of Materials
The delivery of tiles shall be in original containers with seals unbroken. Adequate
precaution shall be taken to prevent accidental damage to tiles while unloading and
these shall be stored under cover in a manner approved by the Engineer. Adhesives
shall be stored as per the manufacturers instructions.
10.04 Laying and Finishing of Floor tiles
Preparation of base shall be as specified under head “Preparation of Base Surface”.
The under bed for flooring shall be of 20 mm average thick cement mortar 1:4 (1 part
cement and 4 parts sand) or as specified in item specification. The bedding shall be
laid evenly over the surface, tamped and corrected to desired levels and allowed to
harden enough to offer a fairly rigid cushion to tiles. Before fixing the tiles, the bed
mortar shall be roughened by scratching diagonal lines at closed intervals and grey
cement slurry of honey like consistency shall be applied over the bedding. Tiles shall
be well soaked in water washed clean and fixed in cement grout one after the other,
each tile being gently tapped in its position with a wooden mallet till it is properly
bedded and in level with the adjoining tiles. The joints shall be kept as thin as possible
and in straight lines or to suit the required pattern. Where the full tiles cannot be fixed
these shall be cut (sawn) to the required size and their edges rubbed smooth to ensure
straight and true joints. When grouting the tiles special care shall be taken to prevent
scratch. After the tiles have been laid, surplus cement grout shall be cleaned off. The
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joints shall be cleaned off the grey cement grout with a wire brush or trowel to a depth
of 5 mm and all dust and loose mortar removed. Joints shall then be flush pointed with
grout of white cement mixed with “Roff Rainbow Tile Mate” or approved equivalent, to
match the colour of tiles as per Manufacturer’s specification. The floor shall then be
kept wet for 7 days. After curing, the surface shall be washed with mild hydrochloric
acid and clean water. The finished floor shall not sound hollow when tapped with a
wooden mallet.
10.05
Laying and Finishing of Wall Tiles
Preparation of wall surface shall be as specified under head “Preparation of
Base Surface”
A 12 mm thick plaster of cement mortar 1:3 mix or as specified in item shall
be applied and allowed to harden. The plaster shall be roughened with wire brushes
or by scratching diagonal at closed intervals and cured properly.
The tiles should be washed clean and a coat of cement slurry applied liberally
at the back of tiles and set in the bedding mortar and for pointing the tiles.
If specified in the item, chemical adhesive of approved make shall be used
for setting the tiles in the bedding mortar.
For maintaining uniform gap and alignment plastic spacer should be used.
The tiles shall be tamped and corrected to proper plan and lines. The tiles shall be
set in the required pattern and jointed true to plumb. The joints shall be as fine as
possible. Top of skirting or dado shall be truly horizontal and joints truly vertical
except where otherwise indicated or as directed by Engineer.
Skirting / dado shall rest on the top of the flooring where full size tiles cannot be fixed
these shall be cut (swan) to the required size and height as specified and their edges
rubbed smooth.
The joints shall be cleaned off with wire / coir brush or trowel and all dust and loose
mortar removed. Joints than shall be flush pointed with grout of white cement mixed
with “Roff Rainbow Tile Mate” or approved equivalent to match the colour of tiles as
per manufacturer specification. The work shall then be kept wet for 7 days.
After curing, the surface shall be washed with mild hydrochloric acid and clean water.
The finished work shall not sound hollow when tapped with a wooden mallet.
10.06
11.0
The finished surface shall be protected with a layer of pop to a required thickness
over a plastic sheet.
CEMENT BASED COLOUR AND PATTERNED TILES
11.01 Cement tile to be used for external and internal applications shall be manufactured
using very high quality raw materials, high strength cement, colour pigments etc. to
withstand all conditions of sever intensity in terms of temperature, vagaries of the
nature, traffic, extreme heat and cold etc. and shall conform to IS 1237.
The tiles shall be heavy, dense, homogeneous in texture with high strength and
surface hardness, high resistance to abrasion and low porosity. Thickness of floor
tiles shall be 22 mm and wall tiles shall be 12 mm.
Tiles of approved make, colour, design, plain chequered or grooved pattern etc. as
shown on the drawings, as specified in the Bill of Quantities shall be used in the
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works as directed by the Engineer. Laying of tiles in any pattern in combination of
any colour tiles desired by the Engineer shall be carried out without any extra cost.
11.02
Samples - Samples of each type / design / finish / print / size / colours of tiles shall be
submitted well in advance to the Engineer for approval at Contractor cost.
Approved sample tiles will be retained by the Engineer. All tiles procured should be
exactly as per approved samples. Tiles shall be procured from a single approved
source
Tiles of approved make, colour, design, finish, size etc. as stipulated in item
description and / or as shown in the drawings only should be procured and used on
the works.
11.03 Storage - Tiles shall be stacked and stored as per instructions of the manufacturer.
11.04
Laying And Finishing Of Floor Tiles
A bedding of 20 mm thick with cement mortar 1:4 (one part of cement and four parts
of coarse sand) or as specified shall be laid over the prepared base after setting the
levels for the floor.
Neat cement slurry of honey like consistency shall be spread over the levelled base
mortar.
The tiles after wetting the reverse side, shall be fixed in the cement grout one after
the other, each tile being gently tapped with a wooden mallet to obtain perfect levels.
The laid surface shall be cleaned with water immediately with wet sponge.
It shall be ensured that the cement grout which squeezes through joints does not
settle on the tile.
The joints, after cleaning, shall be pointed with white cement mixed with colour
pigment of tile finish like “Roff Rainbow Tile make or approved equivalent. The
surface shall be cured for 7 days.
The surface shall be maintained by cleaning the tiles regularly with water and
detergent.
11.05
12.0
Laying and finishing of wall tiles - Laying of wall tiles shall be in the same manner
as described above for floor tiles.
SHAHABAD, TANDUR, KOTAH AND CUDDAPAH FLOORING
The slabs shall be of selected quality, hard sound, dense, homogenous in texture, free from
cracks, decay, weathering and flaws and of thickness as specified. The top exposed faces
should have been roughly polished before bringing it to site. Unless otherwise specified the
slabs should be cut to the required shape and size, by machine cut as specified. All pieces
should be of uniform colour.
A bed of cement mortar 1:4 shall be laid and properly levelled to an average thickness of 20
mm and the surface should be kept slightly rough to form a satisfactory key for the tiles. Neat
cement paste of honey like consistency shall be spread over mortar bed over such an area so
that the paste will not harden before laying tiles. Slabs shall be soaked in water for 15 minutes
and allowed to dry. The slabs shall then be fixed as per approved pattern with thin coat of
cement paste on back of each slab. They will be tapped with a wooden mallet till it is properly
bedded in level with adjoining slabs. Joints shall be kept as thin as possible and in straight
lines or to suit the required pattern. The surplus cement grout that may have come out of the
joints has to be wiped off gently and joints cleaned. The joints shall be filled up with grey or
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white cement with an admixture of pigments to match the shade of the slab. The flooring shall
be cured for 14 days.
Protection - The surface shall be protected with a layer of pop to a required thickness over a
plastic sheet.
13.00
GRANITE FLOORING / DADOING
The slabs must be of uniform thickness as specified the variation in the thickness not
exceeding 2 mm and must be from the same source. They shall be of uniform texture and
colour free of any veins and streaks. All the edge shall be chiseled true to line, square and
shape. The brushes in the joints are not more than specified thickness.
13.01
Rough Finish
The surface should be rough dressed/one line dressed/two lines dressed/three line
dressed finish using palmane tools as specified.
a) Rough dressing :
The stone surface to be chisel dressed to one plane by
removing all bushings so that the maximum depression is not more than 6 mm.
b) One line dressing - This is done after the rough dressing is completed by point
chiselling so that the variations are not more than 4 mm. Work includes rough
dressing also.
c) Two line dressing :
This is done after one line dressing is done by chiselling so
that variations are not more than 2.5 mm. Work includes rough and one line
dressing also.
13.02
d)
Three lines dressing :
This is done after two lines dressing is over by
chiselling so that the variations are not more than 1.5 mm. Work includes rough,
one line & two line dressing also.
e)
Palmane dressing :
After the three line dressing is over the surface is
smoothened by using a special palmane tool to further even out the 3 line
dressed surface so that the maximum variation in surface evenness is not
more than 1.0 mm. Work includes rough, one line, two line & three line dressing
also unless otherwise stated.
Mirror Finish
The surface will be polished by grinding using manual or mechanical process to give a
smooth, even, perfect plane surface or as may be directed. The polished surface
should reflect light like a mirror free from scratches and depressions.
13.04
Protection
Granite slabs in flooring shall be protected with layer of pop to a required
thickness over a plastic sheet. The pop and plastic sheet shall be removed and one
coat of polishing to be carried out if required before handing over.
16.00
ACCEPTANCE CRITERIA
The finish shall be checked specially for :
a)
Level, slope, plumb as the case may be (The surface of the finish shall be smooth
and within +/-5 mm of the specified level or position. Local irregularities shall be
within +/-3 mm when measured against a 3 metre straight edge. Abrupt changes of
alignment shall not exceed 2 mm).
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17.00
b)
Pattern and symmetry
c)
Alignment of joints, dividing strips, etc.
d)
Colour, texture
e)
Surface finish
f)
Thickness of joints
g)
Details of edges, junctions, etc.
h)
Performance
i)
Precautions specified for durability
MODE OF MEASUREMENT
The method of measurement for various items shall be generally in accordance with the IS :
1200 subject to the following :
i) Floor
Flooring shall be measured from skirting to skirting and where the wall surfaces are plastered
or provided with dado it shall be measured from plaster to plaster or dado to dado. The
measurements shall be in square metre.
ii) Skirting:
The measurement for skirting shall be in running metre.
specified in bill of quantities.
The height of skirting shall be
iii) Dado:
Dadoing shall be measured from finished floor level to specified height in the Bill of Materials.
The measurements shall be in square metre.
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SECTION - 12
INTERNAL & EXTERNAL FINISH (PLASTERING WORKS)
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Materials
5.0
Mortar
6.0
Samples
7.0
Chasings and Cuttings
8.0
Preparation of Surface
9.0
Application of Plaster
10.0
Pointing
11.0
Mode of Measurements
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SECTION - 12
INTERNAL AND EXTERNAL FINISH (PLASTERING WORKS)
1.00
1.01
SCOPE
This specification covers the general requirements for plastering and allied works on all types of
masonry and concrete surfaces and pointing works.
2.00
2.01
GENERAL REQUIREMENTS
The Contractor shall furnish all skilled and unskilled labour, plant, equipment, scaffolding,
materials, etc. required for complete execution of the work in accordance with the drawings and
as described herein and/or as directed by the Engineer-in-Charge.
2.02
IS : 1661 shall be followed as a general guidance for plastering work. All plaster
work and other wall finishes shall be executed by skilled workmen in a workmanlike
manner and shall be of the best workmanship and in strict accordance with the
dimensions on drawings subject to the approval of the Engineer-in-Charge.
2.03
The primary requirement of plaster work shall be to provide absolutely water tight
enclosure, dense, smooth and hard and devoid of any cracks on the interior and/or
exterior. The contractor shall do all that is necessary to ensure that this objective is
achieved. All plastering shall be finished to true plane, without any imperfections and
shall be square with adjoining work and form proper foundation for finishing materials
such as paint etc.
2.04
Masonry and concrete surfaces which call for applications of plaster shall be clean,
free from efflorescence, damp and sufficiently rough and keyed to ensure proper
bond, subject to the approval of the Engineer-in-Charge.
2.05
Wherever directed by the Engineer-in-Charge, all joints between concrete frames and
masonry in filling shall be expressed by a groove cut in the plaster. The said groove
shall coincide with the joints beneath as directed. Where grooves are not called for,
the joints between concrete members and masonry in filling shall be covered by 24
gauge galvanised chicken mesh strips 400 mm wide or as called for on drawings /
documents which shall be in position before plastering.
2.04
The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the Safety Rules as specified
in the General Conditions of the Contract for ensuring safety of men and materials.
2.07
Any approval, instructions, permission, checking, review etc. whatsoever by the
Engineer-in-Charge shall not relieve the Contractor of his responsibility and obligation
regarding adequacy, correctness, completeness, safety, strength, workmanship etc.
3.00
CODES AND STANDARDS
3.01
All applicable standards, acts and codes of practice referred to shall be the latest editions
including all applicable official amendments and revisions. A complete set of all these
documents shall generally be available at site with the Contractor.
3.02
List of certain important Indian Standards, Acts and Codes applicable to this work is
given below. However, the applicable standards and codes shall be as per but not
limited to the list given below :
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IS : 383
Coarse
and
fine
sources for concrete.
IS : 712
Building limes.
from
natural
IS : 1542
Sand for plaster.
IS : 1635
Code of practice for field slaking of building
preparation of putty.
lime and
IS : 1661
4.00
aggregates
Code of practice for application of cement and
cement-lime plaster finishes
IS : 2250
Code of practice for preparation and use of masonry
mortars.
IS : 2547
Gypsum building plaster.
IS : 3150
Hexagonal wire netting for general purposes.
MATERIALS
4.01
Cement
The cement used shall be Ordinary Portland cement conforming to IS:269 or IS :
8112. Unless otherwise specified Ordinary Portland cement of 43 grade conforming
to latest IS - 8112 shall be used for all plastering works.
The Contractor shall make his own arrangements for the storage of adequate
quantity of cement.
Cement shall be a stored in closed weather proof shed on raised wooden plank
flooring away from wall to prevent deterioration by dampness or intrusion of foreign
matter etc.
4.02
Sand
Sand shall conform to IS : 1542, IS : 383 and IS : 2116. It shall be from a natural
source or crushed stone sand. The sand shall be hard, durable, clean and free from
adherent coatings and organic matter, and shall not contain any appreciable amount
of clay balls or pellets. The sand shall not contain any harmful impurities. The sand
shall be properly graded and of medium size with a fineness modules of 2.0 to 2.2.
Sand containing any trace of salt shall be rejected. Sand shall be washed if required
by the Engineer-in-Charge.
4.03
Coarse aggregate shall conform to IS : 383. Coarse aggregate of size 6 to 12 mm
shall be used for rough cast plaster in finishing coat.
4.04
Water
Water used for mortar and curing shall be clean and free from injurious amounts of
oils, acids, alkalis, sugar, organic materials etc. Potable water is generally considered
satisfactory for mixing mortar and curing.
4.05
Lime
Lime shall be stone lime and it shall conform to IS:712. Hydrated lime shall be mixed
with water to form a putty. This shall be stored with reasonable care to prevent
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evaporation of water for atleast 24 hours before use. Quick lime shall be slaked with
enough water to make a cream and then stored with reasonable care to prevent
evaporation of water for atleast seven days before use.
4.06
Water Proofing Compound
CICO No.1 or equivalent approved quality shall be used.
5.00
MORTAR
5.01
Unless otherwise specified cement-sand mortar shall be used. Cement mortar shall
be of proportion specified for each type of work. Cement mortar shall be prepared by
mixing cement and sand in specified proportions by volume. Sand shall be measured
on the basis of its dry volume using gauge boxes. Suitable allowance in quantity shall
be made to cater for the bulkage. Cement shall preferably be measured by weight. For
the purpose of determining the corresponding volume, one cubic metre of cement shall
be taken to weigh 1440 Kg.
5.02
Cement mortar mix is specified as 1:2, 1:3, 1:4, 1:5 etc. The first figure will mean one
part of Portland cement by volume, the second figure will mean so many parts of
sand by volume. For example, cement mortar 1:4 would mean one part of cement
and four parts of sand.
5.03 The mixing of mortars shall be done in mechanical mixer. However. depending
on nature, magnitude and location of the work, the Engineer-in-Charge may relax the
condition of use of mechanical mixer and allow hand mixing.
Cement and sand in the specified proportions shall be fed into the mixer and mixed
dry thoroughly in the mixer. Water shall then be added gradually and the wet mixing
continued for atleast 3 minutes. If hand mixing is allowed it shall be carried out on a
clean, water tight platform. The accurately gauged materials shall be put on platform,
and thoroughly mixed dry. Water shall then be added and the whole mixed
thoroughly until the mix is homogeneous and of uniform colour. Only that quantity of
mortar, which can be used within 30 minutes of its mixing shall generally be prepared
at a time. Care shall be taken, not to add more water than required. IS:2250 and
IS:1661 shall be referred for ascertaining the quantity of water.
Cement mortar shall be used as soon as possible after mixing and before it begins to
set, preferably within half an hour from the time water is added to cement during
mixing. Any mortar for plaster partially set shall be rejected and removed from the
site.
Sweep mortar shall not be used.
6.00
SAMPLES
Samples of each type of plaster and other wall finish shall be prepared well in advance of
undertaking the work for approval by the Engineer-in-Charge.
7.00
CHASINGS AND CUTTINGS
All chasings, installations of conduits, inserts, boxes, etc. shall be completed and finished with
cement mortar with galvanised chicken mesh before any plastering or other wall finish is
commenced on a surface. No chasing or cutting of plaster or other finish on a surface shall
be permitted. Broken corners shall be cut back not less than 150 mm on both sides and
patched with plaster of paris as directed.
8.00
PREPARATION OF SURFACE
The surface shall be cleaned of all dust, loose mortar droppings, traces of algae,
efflorescence and other foreign matter by water or by brushing. Smooth surfaces shall be
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roughened by wire brushing, if it is not hard and by heckling when it is hard. In case of
concrete surface, if a chemical retarder has been applied to the framework, the surface shall
be roughened by wire brushing and all the resulting dust and loose particles cleaned off and
care shall be taken that none of the retarders is left on the surface.
Galvanised chicken mesh (24 gauge, 12 mm size) shall be provided at junctions of brick
masonry and concrete members, to be plastered and other locations 150 mm on either sides
of the junction in double fold or as called for, properly stretched and nailed, ensuring equal
thickness of plaster on both sides of the mesh. The rate includes in the plaster works.
Trimming of projections, wherever necessary shall be done to achieve an even surface. The
joints in all walls shall be raked out to a depth of at least 10 mm, brush cleaned with wire
brushes, dusted and thoroughly wetted before plastering work.
For ceiling plaster, the concrete surface shall be pock marked with a pointed tool to ensure a
proper key for the plaster.
The wall shall be dampened evenly and not soaked before application of plaster. If the
surface becomes dry in spots, such areas shall be moistened again.
9.00
APPLICATION OF PLASTER
9.01
Plaster application shall be commenced only after the preparatory work is approved
by the Engineer-in-Charge. To ensure even thickness and a true surface, plaster
about 10 cm to 15 cm square shall be first applied horizontally and vertically, at not
more than 2m intervals over the entire surface to serve as gauges. The surfaces of
those gauged areas shall be truly in the plane of the finished plastered surface and
finished as approved by the Engineer-in-Charge to give a smooth, true and even
surface.
Plastering of cornices, decorative features etc. shall be completed before the finishing
coat is applied.
In all plaster work, mortar shall be firmly applied with some what more than the
required thickness and spread evenly well pressed in to the joint and on the surface
and rubbed, levelled and smoothened with straight edge, wooden float and trowel to
the required thickness and finished as approved by the Engineer-in-Charge to give a
smooth true and even surface.
Plaster when more than 15 mm thick, shall be
applied in two coats a base coat followed by the finishing coat. Thickness of the base
coat shall be just sufficient to fill up all unevenness in the surface, no single coat,
however shall exceed 12 mm in thickness. The lower coat shall be thicker than the
upper coat. The overall thickness of the coats shall not be less than the minimum
thickness shown on the drawings. The undercoat shall be allowed to dry and shrink
before applying the second coat of plaster. After a suitable time interval (Preferably
not more than 5 days) the second coat may be applied. The under coat shall be
scratched or roughened before it is fully hardened to form a mechanical key.
The finished wall surface shall be true to plumb, and the Contractor shall, without any
extra cost, make up any irregularity in the masonry and concrete work with plaster.
All vertical edges of brick pillars door jambs etc. shall be chamfered or rounded off as
directed by the Engineer-in-Charge. All corners must be finished to their true angles
or rounded. Any plastering that is damaged shall be repaired and left in good
condition at the completion of the job.
9.02
Grooves in Plaster
Where specified in drawings, rectangular grooves 12 to 20 mm wide and 8 to 10 mm
deep at the quoted rate shall be provided in external plaster by means of timber
battens or metal strips, fixed on plaster when plaster is still green. Battens or strips
shall be carefully removed after initial set of plaster and broken edges and corners
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made good. All grooves shall be uniform in width and depth and shall be truly plumb
and correctly aligned.
9.03
Drip Course
Drip course wherever indicated in the drawings shall be provided at the time of
plastering to prevent travelling of water drops from the projections. Unless otherwise,
specified, projected strip form drip course shall be provided with the quoted rate.
9.04
Thickness of plaster shall be as specified. Any extra thickness of plaster required to
be plastered in the case of brick masonry or extra thickness required due to raking of
the joints or filling up depressions formed in concrete surface during the course of
roughening or due to bad casting or centering shall not be paid separately, but shall
be covered by the general rate for plastering.
9.05
The rate for plastering shall include the cost of scaffolding, platform, swing etc.
needed for carrying out the plaster work and shall cover the extra labour for
plastering the joints, sills and soffits of openings. No extra payment shall be made for
roughening the surface to obtain key for plastering work.
9.06 Finishes
The interior plaster shall generally be finished to a smooth surface. Wherever punning
is indicated, the interior plaster shall be finished rough. The exterior surface, shall
generally be finished with a wooden float. Wherever any +/*-+special treatment to the
plastered surface is indicated, the work shall be done exactly as shown on the
drawings, to the entire satisfaction of the Engineer-in-Charge regarding the texture,
colour and finish.
Ceiling Plaster – Plaster to ceilings, soffits or stairs flight slabs and similar locations,
where called for, shall be as specified in the Schedule of Quantities.
9.07
Rough Cast Finish
The plaster shall be laid in two coats. The first coat shall consist of one part of
cement and four parts of clean sharp sand or as specified. The thickness of the first
coat shall be just sufficient to fillup all unevenness in the surface under treatment but
shall not exceed 12 mm. The plaster shall be laid by throwing the mortar by using a
strong whipping motion on the prepared surface with a trowel in a uniform layer and
pressed to form a good bond. The surface shall not be smoothened. The second
coat shall consist of one part of cement, one part of specially selected and graded
sand, one parts of gravel / crushed stone of size 6 to 12 mm or as approved by the
Engineer-in-Charge.
The thickness of this coat shall be 7 mm to 8 mm. The cement and aggregates shall
be mixed dry in the proportion by volume as specified. Water shall be added to form
a plastic mix easily workable. The second coat shall be applied while the first coat is
still soft and plastic. The plastic mix shall be flung upon the first coat with large trowel
to form an even and decorative coat.
9.08
Rough cast plaster with colour finish
This finish shall be similar to “Rough Cast Finish” above except a high grade mineral
pigment of approved shade shall be mixed with white cement instead of ordinary grey
cement while preparing the mortar for finishing coat.
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9.09
Sand Faced Finish
The plaster shall be applied in two coats consisting of an undercoat of cement mortar
(1:4), 12 mm thick and a finishing coat with cement mortar (1:3), 6 mm thick. The
sand used in the finishing coat shall pass through 4.75 mm sieve and be retained on
2.36 mm sieve. Key should be formed on the uniformly levelled surface of base coat
by thoroughly combing it in many horizontal lines about 12 mm apart and 3 mm deep
when the mortar is still plastic. The finishing coat shall be applied a day or two after.
The surfaces of the finishing coat shall be tapped and treated to obtain a uniform fine
grained texture with the help of sponges, felt pads, etc. Care shall be taken to see
that the cement used is of the same shade throughout the work.
9.10
Pebble Dash Finish
Mortar of required thickness consisting of one part cement and four parts sand by
volume or as specified shall be applied to form a base coat in the usual manner as
described under plastering. While the mortar is still plastic, small pebbles or crushed
stone of size generally from 10 mm to 20 mm as approved by the Engineer-in-Charge
shall be thrown to the plastered surface. The aggregate shall be lightly tapped into
the mortar with a wooden unit float or the flat end of a trowel, in order to ensure
satisfactory bond between the dashing and the mortar.
9.11
Curing
Finished plaster shall be kept wet for atleast 7 days after completion. In hot weather,
walls exposed to such shall be screened with matting kept constantly wet or by any
other approved means.
10.00
POINTING
10.01
The materials, preparation of mortar etc. shall be same as specified for cement
plaster works. The mix proportion shall not be leaner than 1:3, unless otherwise
specified. For all exposed brickwork or stone masonry work, self supporting double
scaffolding, having two sets of vertical supports shall be provided so as to avoid
openings in the wall.
10.02
Preparation of surface
The joints shall be raked out properly to such a depth that the minimum depth of the
new mortar measured from either the sunk surface of the finished pointing or from the
edge of the brick shall not be less than 10 mm. Dust and loose mortar shall be
brushed out. Efflorescence, if any shall be removed by brushing and scraping. The
surface shall then be thoroughly washed with water, cleaned and kept wet before
commencement of pointing.
10.03
Application of mortar and Finishing
The mortar shall be pressed into the raked out joints, with a pointing trowel, flush,
sunk or raked, according to the type of pointing required. The mortar shall not spread
over the corner, edges or surface of the masonry. The pointing shall then be finished
with the proper tool according to the type of pointing required.
10.04 Type of Pointing
a)
Ruled pointing
Unless otherwise specified ruled pointing shall be adopted for all exposed
brick/block masonry work. However, for rubble masonry works, recessed
pointing shall be adopted.
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The mortar shall be pressed into the raked out joints and shall be finished off
flush and then while the mortar is still green, a groove of shape and size as
shown in drawings shall be formed by running a forming tool straight along
the centre line of joints. This operation shall be continued till a smooth and
hard surface is obtained. The vertical joints shall also be finished in a similar
way. The vertical joints shall make true right angles at their junctions with the
horizontal lines and shall not project beyond the same. For recessed
pointing in rubble masonry recess shall be provided along the centre line of
the joint profile.
b)
Flush pointing
The mortar shall be pressed into the joints and shall be finished off flush and
level with the edges of the brick, tiles or stones so as to give a smooth
appearance. The edges shall be neatly trimmed with a trowel and straight
edge. Unless otherwise specified, flush pointing shall be adopted for drains
and brick on edge paving.
c)
Raised and cut pointing
Raised and cut pointing shall project from the wall facing with its edges cut
parallel so as to have a uniformly raised band about 6 mm raised and width
10 mm or more as directed. The superfluous mortar shall be cut off from the
edges of the lines and the surface of the masonry shall also be cleaned off all
mortar. Unless otherwise specified, raised and cut pointing shall be adopted
for stone masonry pointing, and shall be provided along the Centre line of the
joint profile.
10.05
Curing
The pointing shall be kept wet for 7 days.
11.00
MODE OF MEASUREMENT
Unless noted otherwise in the bills of quantities, the method of measurement for various items
shall be generally in accordance with IS 1200 subject to the following:
All plastering work shall be measured in square metres unless otherwise described.
Net area of surface plastered shall be measured. No deductions will be made for ends of
joists, beams, posts, etc. and openings not exceeding 0.5 sqm. each and no addition shall be
made for reveals, jambs, soffits, sills, etc. of these openings.
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SECTION - 13
INTERNAL & EXTERNAL FINISH (PAINTING WORKS)
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Materials
5.0
Storage
6.0
Preparation of Surface
7.0
Application
8.0
Protection
9.0
Cleaning up
10.0
Acceptance Criteria
11.0
Mode of Measurements
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INTERNAL & EXTERNAL FINISH (PAINTING WORKS)
1.00
SCOPE
This specification covers the general requirements for painting, white washing, etc. of
both interior and exterior surfaces of masonry, concrete, plaster and all carpentry
works, structural and miscellaneous steel works. This also includes furnishing of all
materials, labour, scaffolding, tools and appliances etc.
2.00
GENERAL REQUIREMENTS
2.01
Before commencing painting, the Contractor shall obtain the approval of the Engineer-in-Charge
in writing regarding the scheduling of work to minimise damage, disfiguration or staining by
other trades. He shall also undertake necessary precautions to prevent damage, disfiguration or
staining of other trades or other installations.
2.02
Contractor shall protect not only his own work at all times but also all the adjacent
work and materials by suitable covering, protection or other methods acceptable to
the Engineer-in-Charge during progress of painting. It is the responsibility of the
contractor upon completion of painting work to remove all paint and varnish spots
from floors, walls, glass panes and other surfaces and restore them to the original
conditions. The work generally to be touched up shall be attended to after all other
workmen have left. All accumulated material, rubbish etc. have to be cleared and the
premises left in clean, orderly and acceptable conditions.
2.03
Contractor shall provide scaffolding wherever necessary erected on double supports
tied together by horizontals, no ballies, bamboos or planks shall rest on or touch the
surface which is being painted. Contractor is deemed to have considered the
following while tendering and no extra claim on account of these will be entertained.
a) Supplying the paint and other materials required of approved colour and brand.
b) Preparing the surface to be painted
c) Providing and erecting scaffolding and removing the same after completion of the
work.
d) Lifting of materials to any height and painting at all levels.
e) Application of paint as per the specification and to Manufacturer’s instructions.
f)
2.04
Curing, protecting the painted surface, adjacent work and thoroughly cleaning of
the premises.
The Contractor shall furnish all skilled and unskilled labour, plant, equipment, scaffolding, all
materials etc. required for complete execution of the work in accordance with the drawings and
as described herein and / or as directed by the Engineer-in-Charge.
2.05
The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the Safety Rules as specified
in the General Conditions of the Contract for ensuring safety of men and materials.
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2.06
Any approval, instructions, permission, checking, review etc. whatsoever by the
Engineer-in-Charge shall not relieve the Contractor of his responsibility and obligation
regarding adequacy, correctness, completeness, safety, strength, workmanship etc.
3.00
CODES AND STANDARDS
3.01
All standards, specifications, acts, and codes of practice referred to herein shall be the latest
editions including all applicable official amendments and revisions.
3.02
List of certain important Indian Standards, Acts and Codes applicable to this work is
given below. However, the applicable standards and codes shall be as per but not
limited to the list given below :
IS : 157
:
Chemical resistant paint.
IS : 161
:
Oil resistant paint
IS : 162
:
Ready mixed paint, brushing, fire esisting, silicate
type for use on wood, colour as required
IS : 348
:
French Polish
IS : 423
:
Plastic wood for joiners filter
IS : 427
:
Distemper, dry, colour as required
IS : 428
:
Distemper, oil emulsion, colour as required
IS : 712
:
Building limes
IS : 1200
:
Method of measurement of building and civil
Engineering works.
IS : 1477
4.00
:
Code
of
practice
for
ferrous metals and buildings.
painting
IS : 2074
:
Ready
mixed
paint,
red oxide – zinc chrome priming.
air
IS : 2922
:
Specification for wooden tent mallets
IS : 2932
:
Enamel,
synthetic,
undercoating, (b) finishing
IS : 2933
:
Enamel exterior (a) undercoating,
(b) finishing
IS : 5410
:
Cement paint
exterior
of
drying,
(a)
MATERIALS
4.01
General
Paint shall be ready mixed and of first quality of the approved brand and
manufacturer. The paint shall generally conform to the chemical composition and
other characteristics laid down in the relevant Indian standard specification. Mixing of
paint by the Contractor at site will not be allowed. However, in the case of selection
of special shades and colours (not available standard shades) theContractor shall mix
different shades of ready mixed paints as per Manufacturer’s instructions and as
directed by the Engineer-in-Charge.
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Materials shall be the highest grade products of well known approved manufacturers
and shall be delivered to the site in original sealed containers, bearing brand name,
manufacturer’s name and colour shade, with labels intact and seals unbroken. All
materials shall be subject to inspection and approval by the Engineer-in-Charge. It is
desired that materials of one manufacturer only shall be used as far as possible and
paint of one shade be obtained from the same manufacturing batch. All paints shall
be subjected to analysis from random samples taken at site from the painter’s bucket,
if so desired by the Engineer-in-Charge.
All unspecified materials shall be of the highest quality available and shall conform to
the latest IS standards. All such materials shall be made by reputable recognised
manufacturers and shall be approved by the Engineer-in-Charge.
Any materials found not conforming to the relevant specification shall have to be
removed by the Contractor from the site at his own expenses.
All colours shall be as per the painting schedule and tinting and matching shall be
done to the satisfaction of the Engineer-in-Charge. In such cases, where samples are
required, they shall be executed in advance with the specified materials for the
approval of the Engineer-in-Charge.
All primer coats shall be compatible to the material of the surface to be finished as
well as to the finishing coats to be applied.
4.02
Synthetic Enamel Paint
Shall be made from synthetic resins and drying oil with rutile titanium dioxide and
other selected pigments to give a smooth, hard, durable and glossy finish to all
exterior and interior surfaces. White and pastel shades shall resist yellowing and
darkening with ageing, The paint shall conform to IS:2932 and IS:2933.
4.03
Waterproof Cement Paint
Shall be made from best quality white cement and lime resistant colours with
accelerators, waterproofing agents and fungicides. The paint shall conform to
IS:5410.
4.04
Dry Distemper
Dry distemper of required colour conforming to IS:427 and of approved brand and
manufacturer shall be used. The primer where used shall be cement primer or
distemper primer. These shall be of same manufacturer as that of distemper.
4.05
Lime for White Washing
Lime for white washing shall be pure shell lime or fat lime, or a mixture of both and
shall conform to IS:712 (latest edition) Samples of lime shall be submitted to the
Engineer-in-Charge for approval and lime as per the approved samples shall be
brought to site in an unslaked condition.
4.06
Lime and Mineral for Colour Wash
Shall be done with mineral colours not affected by lime added to white wash. No
colour wash shall be done until a sample of the colour wash to the required tint or
shade has been approved by the Engineer-in-Charge. The colour shall be of even tint
or shade over the whole surface. If it is blotchy or otherwise badly applied, it shall be
redone by the Contractor at his own cost.
4.07
Acrylic Emulsion Paint :
Shall be water based acrylic copolymer emulsion
with rutile titanium dioxide and other selected pigment and fungicide. It shall exhibit
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excellent adhesion to plaster and cement surface and shall resist deterioration by
alkali salts. The paint film shall allow the moisture in wall to escape without pelling or
blistering the paint. After it is dried, the paint should be able to withstand washing with
mild soap and water without any deterioration in colour or without showing flaking,
blistering or peeling.
5.00
4.08
Oil Bound Distemper ;
Oil bound distemper (IS:428-1969) of approved
brand and manufacture shall be used. The primer where used be cement primer or
distemper primer. These Shall be of same manufacturer as that of distemper. The
distemper shall be diluted with prescribed thinner in a manner recommended by the
manufacturer. Only sufficient quality of distemper required for a day’s work shall be
prepared.
4.09
Chemical Resistant Paint :
Chemical resistant paint as per IS:157 of approved
brand and manufacture shall be used. Primer coat to be used shall be as per
manufacturer’s specifications.
4.10
Fire Resistant Paint : Fire resisting paint (silicate type) shall be as per IS:162 and
of approved brand and manufacture. Primer to be used shall be as per
manufacturer’s specifications.
4.11
Oil Resistant Paint : Oil resistant paint shall be as per IS:161 and of approved
brand and manufacturer. Primer coat shall be as per manufacturer’s specifications.
4.12
French Polish : French polish shall be an approved make conforming to IS : 348.
STORAGE
The Contractor shall arrange for safe and proper storage of all materials and
tools. Paints shall be kept covered at all times and mixing shall be done in suitable
containers. All necessary precautions shall be taken by the Contractor to prevent fire.
6.00
PREPARATION OF SURFACE
6.01
Wood Work : Pretruding timber fibre shall be removed and all holes shall be filled
with teakwood batten. the nail marks shall be covered with putty. The work shall
then be sanded first with G/80 sand paper followed by G/120 or G/150 sand paper.
Sanding should be taken up only when it can be followed immediately by painting.
6.02
Steel work :
The surface shall be thoroughly cleaned sand prepared and / or
rubbed with emery cloth if necessary to remove grease, mortar or any other foreign
materials. In case of rusted surface, it shall be first cleaned with steel wire brushes
till the corroded crust is removed. The cleaned surface shall be shiny and free from
brush marks, patches, blisters and other irregularities. The surface thus finished
shall be got approved before painting.
6.03
Masonry, concrete and plastered surface :
Concrete / masonry surface and
cement plastered surfaces shall be thoroughly cleaned of mortar droppings and
other stickings. All loose scales and flakes shall be removed by rubbing with
hessian cloth or sand papering. All holes shall be filled and the surface rubbed
smooth to get evenness of the existing surface. The surface shall be free from all
oil, grease, efflorescence, mildew, loose paint or other foreign and loose materials.
Masonry cracks shall be cleaned out and patch filled with mortar similar to the
original surface and uniformly textured. Where this type of resurfacing may lead to
the finishing paint being different in shade from the original surfaces, the resurfaced
area shall be treated with a minimum of one coat of cement primer and should be
continued to the surrounding area for a distance of atleast 100mm.
Surfaces with mildew or efflorescence shall be treated as below :
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(a)
MildewN :
All mildewed surfaces shall be treated with an approved
fungicide such as ammonia wash consisting of 7 gm. of copper carbonate
dissolved in 80 ml liquor and diluted to 1 liter with water or 2.5 percent
magnesium silica fluoride solution and allowed to dry thoroughly before
paint is applied.
(b)
Efflorescence : All efflorescence shall be removed by scrubbing the
affected surface with a solution of mariatic acid and in water (1:6 to 1:8) and
then washed fully with clear water and allowed to dry thoroughly.
Area to be distempered shall be applied with one coat of white chalk solution mixed
with required quantity of glue or plaster of paris and shall be sand papered before
distempering. The area to be cement painted shall be wetted by sprinkling of water
with fine spray. The surface shall be sprayed several times with a few minutes
intervals between each spraying to allow the moisture to seek into the surface.
6.04
Iron and Steel Surface
Surface of steel work to be painted shall be thoroughly cleaned of all grease, oil dirt,
rust, foreign matter like cement splashings, etc. by suitable solvent and mild rubbing
with abrasive paper / hand scrapping to the full satisfaction of the Engineer-inCharge. Clearing with solvents / scraping shall be limited to the affected areas only.
All galvanised iron surfaces shall be pretreated with a compatible primer according to
the manufacturer’s direction. Any abrasion in shop coat shall be touched up with the
same quality of paint as the original coat.
6.05
7.00
Before starting the work, the Contractor shall obtain the approval of the Engineer-inCharge regarding the soundness and readiness of the surface to be painted on.
APPLICATION
7.01
General
Before the commencement of the work the Contractor shall provide sample panels of painting at
his own cost for the approval of the Engineer-in-Charge to enable him to keep an accurate
check on the materials supplied and final shade to be painted. It is however the express
responsibility of the Contractor to provide any deviations and defects shall have to be rectified
by the Contractor at his own cost.
The method of application shall be as recommended by the manufacturer. In case of
selection of a special shade and colour (not available in standard shades) the
Contractor shall prepare test panels in different shades of minimum size 1 metre
square as instructed by the Engineer-in-Charge and obtain his approval prior to
applications of the finishing paints.
Proper tools and implements shall be used. Scaffolding if used shall be independent
of the surface to be painted to avoid shade differences of the freshly repaired anchor
holes. Painting shall be done by skilled labour in a workman like manner. All materials
shall be evenly applied, so as to be free of sags, runs, crawls or other defects. All
coats shall be of proper consistency. In case of application by brush, no brush marks
shall be visible. The brushes shall be clean and in good condition before application
of the paint.
All priming undercoats for painting shall be applied by brush only. Roller and spray
equipment, etc., shall not be used.
The cleaned surface shall be dusted and a primer shall be applied.
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One shop coat of red oxide or zinc chromate primer or as specified shall be given to
all iron surfaces. Painting work on steel and iron surface shall conform to IS : 1477
(Part I and II).
All primer coats shall be compatible to the material of the surface to be finished as
well as to the finishing coat to be applied.
No work shall be done under conditions that are unsuitable for the production of good
results. No painting shall be done when plastering is in progress or is drying. Paint
which seals the surfaces to moisture shall be applied only after the moisture on and
below the surface has dried out.
All coats shall be thoroughly dry before being sand papered or before the succeeding
coat is applied. Coats of painting as specified are intended to cover surfaces
perfectly. In case the surface is not covered properly by applying the specified
number of coats, further coats shall be applied by the Contractor when so directed by
the Engineer-in-Charge at no extra cost.
All primers and under coats shall be tinted to approximate the colour of the finishing
coats. Finished coats shall be of exact colour and shade as approved samples and all
finish shall be uniform in colour and texture. All parts of mouldings and ornaments
shall be left clean and true to finish.
Stopping and filling carpentry work should be done when the primer is just dry. For
deep scratches, holes etc. stopping shall be done with putty of plastic wood (IS 423).
Putty can be white lead with linseed oil base or synthetic metal putty.
For all minor scratches and rough surfaces, like flush door’s faces filling made out of
one part of white lead, two parts of whiting (powdered chalk) mixed and kneaded in
double boiled linseed oil shall be evenly applied and rubbed down with G/220 or
G/240 sand paper after allowing it to dry overnight.
Painting shall be done by skilled labourers in a workmanlike manner. All materials
shall be evenly applied so as to be free from sags, runs, crawls, or other defects. All
coats shall be of proper consistency and shall be well brushed out, so that no brush
marks are visible, except varnish and enamels which shall be uniformly flowed on.
The brushes shall be clean and in good condition before application of paint. No
work shall be done under conditions that are unsuitable for production of good
results.
The undercoating should be nearest to the specified colour of the finishing coat.
Ready mixed synthetic enamel paint or fill paint may be used for the undercoat. The
undercoat shall be uniform and free of all brush marks.
Undercoats should be completely dry before finishing coat is taken up. For synthetic
enamels overnight and for oil paints, a whole day shall be left between undercoat and
finishing coat. The undercoat shall then be rubbed with G/240 sand paper and
dusted clean. The finishing coat of approved paint shall then be applied. If the
surface is not satisfactory additional finish coats shall be applied at no extra cost.
The paints shall be applied with bristle brushes and not horse hair ones.
7.02
Oil / Enamel / Aluminium Paint
Ready mixed oil paint, synthetic enamel paint, Aluminium paint, etc. shall be brought
in original containers and in sealed tins. If for any reason thinner is necessary the
brand and quantity of thinner recommended by the manufacturer or as instructed by
the Engineer-in-Charge shall be used.
After allowing 24 hours for drying of primer coat specified quality paint shall be
applied evenly and smoothly. If required a filler putty coating may be given to give
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smooth finish. A filler putty coating has to be given after primer coat in the case of
wooden surfaces. The putty shall be made from pure whiting mixed to the proper
consisting with new linseed oil. A little white lead being mixed to help hardening of
putty. On no account putty is to be used before primary coat. Each coat shall be
allowed to dry out thoroughly and then lightly rubbed down with sand paper and
cleaned of dust before the next coat is applied. Number of coats shall be as
specified in the item and if however the finish of the surface is not uniform
additional coats as required shall be applied to get good and uniform finish at no
extra cost. After completion no hair marks from the brush or clogging of paint puddles
in the corners of panel angles of mouldings shall be left on the work. The glass panes
floor etc., shall be cleaned of stains.
When the final coat is applied, if directed, the surface shall be rolled with a roller or if
directed it shall be stipplied with a stippling brush.
7.03
Cement Paint
The number of coats shall be indicated in the bill of quantities. The surface to be
cement painted shall be prepared as described above.
The cement paint shall be prepared in exact conformity and workable consistency as
per specifications of the manufacturer. Approval of the Engineer-in-Charge shall be
obtained in regard to the exact shade and colour before applying the cement paint.
Cement paint shall be applied with good quality flat brush horizontally or vertically to
ensure perfect covering. The first coat should be well brushed into the surface to form
a good film appearance. The second or subsequent coats shall be applied carefully to
give a good final satisfactory finish and may be applied by brushing or spraying. Each
cement paint application should be wetted at the end of the day with a fine water spray.
Twenty four hours after the first coat has been applied, saturate the surface with water
and second or subsequent coats can be applied when the surface is damp to touch.
Rewater the surface with ample water after 24 hours to ensure perfect setting of the
paint film.
7.04
Dry Distemper
New plastered surface shall be allowed to dry for atleast two months. New lime or
lime plastered surface shall be washed with a solution of 1 part of vinegar to 12 parts
water or 1:50 sulphuric acid solution and left for 24 hours after which the wall shall be
thoroughly washed with clean water. For cement plastered surface, the surface shall
be washed with a solution of 100 gms of zinc sulphate to 1 litre of water and then
allowed to dry.
Dry distempering shall be done as per manufacturer’s instruction. In applying the
distempers, the brush should first be applied horizontally and immediately crossed off
perpendicularly. Brushing shall not be continued too long as otherwise brush marks
may result.
7.05
White washing walls and ceilings
White wash shall be prepared from fat lime or shell lime slaked onsite mixed with just
enough water to make a thick paste and allowed to remain for atleast 7 days before
use. At the time of using, the paste shall be diluted with just sufficient water and
stirred through clean and coarse cloth. Four kgs. of gum dissolved in hot water shall
be added to each cu. metre of the lime used. Ultra marine blue shall be added to
give required whiteness. The number of coats shall be specified in the bill of
quantities and shall be applied by using flat brushes or spray pumps, on surface
prepared. The wash shall be applied with brush with alternate coats of horizontals
and verticals. When a coat is being given it shall be ensured that the previous one
has dried up completely. Two or more coats of wash (as specified in the schedule of
quantities) shall be applied to give uniform finished surface without any patches or
cracks and brush marks. It should not come off when rubbed hard with hand. One
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coat of white wash shall consist of one stroke from top downwards, another from
bottom upward over the first stroke, and another from left to right before the previous
one dries up. The final coat shall be perfectly uniform in appearance and free from
brush marks.
7.06
Colour Wash
Colour wash shall be prepared by adding mineral colours or approved pigments not
affected by lime or light to the lime solution prepared for white wash. Colour wash
shall be applied as specified under “white wash”. Approval of the Engineer-in-Charge
shall be obtained in regard to exact shade before applying colour wash.
7.07
Acrylic Emulsion Paint
Acrylic emulsion paint, shall be brought in original containers and in sealed tins.
After allowing 24 hours for drying of primer coat specified approved quality paint shall
be applied evenly and smoothly. If required a filler putty coating may be given to
give smooth finish. Each coat shall be allowed to dry out thoroughly and then lightly
rubbed down with sand paper and cleaned of dust before the next coat is applied.
Number of coats shall be as specified in the item and if however the finish of the
surface is not uniform additional coats as required shall be applied to get good and
uniform finish at no extra cost. After completion no hair marks from the brush or
clogging of paint puddles in the corners of panel angles of mouldings shall be left on
the work.
When the final coat is applied, if directed, the surface shall be rolled with a roller or
if directed it shall be stipplied with a stippling brush.
Lime gauged cement plastered surfaces shall not be painted for at least one month
after plastering. All sample patch shall be painted to check alkali reaction if so desired
by the Engineer-in-Charge. Painting shall be strictly as per manufacturer’s
specification.
7.08
Oil Bound Distemper
Any unevenness in surface shall be made good by applying putty. The patched
surface shall be allowed to dry thoroughly before the coat of distemper is applied.
One coat of distemper properly diluted with thinner as specified by the manufacturer
shall be applied by brush in horizontal strokes followed immediately by vertical ones
which together will constitute one coat. Two or more coats of distemper as found
necessary shall be applied to obtain even shade.
7.09
Chemical Resistant, Fire Resistant and Oil Resistant Paints
In general, method of application of these paints shall be strictly as per
manufacturer’s specification.
7.10 Polishing and Varnishing
a)
Colourless Lacquer Polish
Polish
Nitro cellulose lacquer polish of approved brand manufacture and finish
shall be used.
Preparation of Surface
The surface shall be cleaned and all unevenness shall be rubbed down
smooth with suitable grade sand paper and well dusted. Knots if visible shall
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be made good as per the direction of the Engineer-in-Charges. Holes and
indentation on the surface shall be stopped with glaziers putty. The surface
then shall be given a coat of ready made ragging wood filler and allowed to
dry for maximum 4 hours. The surface again shall be rubbed down perfectly
smooth with suitable emery paper and wiped clean. There after a finishing
touch up with ragging wood filler is to be given and allowed to dry. To receive
the polishing the surface is again rubbed down smooth.
Application
Nitro cellulose sealer coat of approved manufacturer shall be applied strictly
as per the manufacturers specification. The polish shall be applied with a
sprayer at suitable pressure and viscocity as recommended by the
manufacturer, and allowed to dry for 4 to 6 hours and rubbed down with
suitable grade emery. The surface shall be again sprayed with 3 coats of NC
lacquer (3 wet on wet coat). Finally the surface shall be given wax polishing by
using rubbing compound.
b)
Melamine Polish
Glossy / Matt
Apcolite Natural Wood finish clear glossy / matt is a premium quality
melaminised coating specially formulated as a protective and decorative
finishing clear coating for wood.
Technical Data
Method of application
:
Brushing
at
25-30
seconds
Ford Cup B4 at 30 degree C.
by
Spraying
at
20-25
seconds
Ford Cup at 30 degree C
by
.
Thinner recommended :
Brushing - Thinner 106
Spraying - Thinner 124
Thinner intake
: 20-25% by volume
Mixing ratio
:
Base to
volume
Drying Time
:
8 hours
hardener
in
10:1
by
Surface
dry
less
minutes
Hard dry 16-20 hours
Recoating period - Overnight
than
30
Finish
:
25
microns
film
smooth and glossy / matt
Flash point
: Above 14 degree C (57o F)
thickness
Sand the surface along the grains with Emery Paper No.180 or with a suitable grade sand
paper. Brush the surface free of loose dust. Fill the wood using Apcolite Wood Filler.
Remove excess filler immediately after applications. Allow 2-3 hours of drying, before
sanding with Emery Paper No.240 or 280. If desired, apply Apcolite Natural Wood Finish upto
20% by volume and apply by spraying after Sealer Coat. In application by ragging allow a
drying time of 5-10 minutes in between coats and 30-60 minutes before over coating with finish
coats. Apply a coat of Apcolite Natural Wood Finish Clear Sealer. After overnight drying,
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smooth sand with Emery Paper No.320 and wipe the surface free of loose dust. Apply Apcolite
Natural Wood Finish Clear Glossy / Matt as follows. Ensure that the surface to be coated is
free from loose matter. Apcolite Natural Wood Finish Clear Glossy / Matt is a two component
system consisting of base and hardener. These should be mixed in the recommended ratio.
The two components should be mixed in a glass, plastic or enamelled container. Allow the
mixture to stand for 30 minutes and then apply by brushing or spraying using the recommended
thinner for consistency adjustment. The mixture of base and hardener should be used within
8 hours.
c)
French Polishing
French spirit polish shall be an approved make conforming to IS 348. If it
has to be prepared on site,the polish shall be made by dissolving 0.7 Kg of
best shellac in 4.5 litres of methylated spirit without heating. To obtain
required shade, pigment may be added and mixed.
Surface shall be cleaned. All unevenness shall be rubbed down smooth with
sand paper and well dusted. Knots if visible shall be covered with a
preparation of red lead and blue. Resinous or loose knots and gaps filled
with seasoned timber pieces made level with reset of the surface. Holes
and indentations on surface shall be filled with putty made of whiting and
linsed oil. Surface shall be given a coat of filler made of 2.25 kg. of whiting in
1.5 litre of methylated spirit. When it dries surface shall again be rubbed
down perfectly smooth with sand paper and wiped clean.
Piece of clean fine cotton cloth and cotton wool made into shape of pad
shall be used to apply polish. The pad shall be moistures with polish and
rubbed hard on the surface applying the polish sparingly but uniformly and
completely over the entire surface. It shall be allowed to dry and another
coat applied in the same way. To give finishing coat, the pad shall be
covered with a fresh piece of clean fine cotton cloth, slightly damped with
mythylated spirit and rubbed lightly and quickly with a circular motion, till the
finished surface attains uniform texture and high gloss.
d)
Wax Polishing
Wax polish shall either be prepared on site or obtained ready made from
market. Polish made on the site shall be prepared from a mixture of pure bees
wax, linseed oil, turpentine oil and varnish in the ration of 2: 1 1/2 : 1 1/2
by weight. The bees wax and the boiled linseed oil shall be heated over a
slow fire when the wax is completely dissolved the mixture shall be cooled till
it is just warm, and turpentine oil and varnish added to it in the required
proportions and the entire mixture is well stirred.
Surface shall be prepared as described under French Spirit Polish except
that the final rubbing shall be done with sand paper which has been slightly
moistures with linseed oil.
Mixture of polish shall be applied evenly with a clean cloth pad in such a way
that no blank patches are left and rubbed continuously for half an hour. When
the surface is quite dry a second coat shall be applied in the same manner
and rubbed continuously for half an hour or until the surface is dry. Final coat
shall then be applied and rubbed for 2 hours or more if necessary, until the
surface has assumed an uniform Gloss and is quite dry showing no sign of
stickiness when touched. Gloss of the polish depends on the amount of
rubbing, therefore rubbing must be continuous and with uniform pressure
and frequent change in direction.
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e)
Varnishing
Surface shall be prepared as described above. After preparation of surface,
two coats of clean boiled linseed oil shall be applied at sufficient interval of
time. After the linseed oil has dried two coats of varnish obtained from
approved manufacturer shall be applied at sufficient interval of time. If the
surface fails to produce the required gloss an additional coat shall be applied
without any extra cost.
8.00
PROTECTION
Contractor shall provide and use sufficient number of drop clothes, covers, tarpaulins and
other screens to protect adjacent surfaces and shall remove all splatter and stains from such
surfaces. The contractor shall also protect his own work.
Furniture and other movable objects, equipment, fittings and accessories shall be moved,
protected and replaced upon completion of the painting work. All stationary items of
equipment shall be well covered so that no paint can fall on them. Work finished by other
agencies shall be well protected. All protection shall be as per instruction of the Engineer-inCharge.
9.00
CLEANING UP
The Contractor shall upon completion of painting etc. remove all marks and make good
surfaces, where paint has spilled, splashed or splattered, including all equipment, fixtures,
glass furniture, fittings, etc. to the satisfaction of the Engineer-in-Charge.
10.00
ACCEPTANCE CRITERIA
10.01
All painted surfaces shall be uniform and pleasing the appearance.
11.00
10.02
The colour, texture etc. shall match exactly with approved samples.
10.03
All stains, splashes and splatters of paint shall be removed from surrounding
surfaces.
MODE OF MEASUREMENT
Unless noted otherwise in the bills of quantities, the method of measurement for various items
shall be generally in accordance with IS 1200 subject to the following:
The following multiplying factors for obtaining equivalent areas shall be adopted.
S.No.
Description of
work
(1)
How Measured
Multiplying Factor
(2)
(3)
1.
Panelled, or framed
and braced or
ledged and battened
and braced joinery
Measured flat (not
girthed),including
CHOWKAT or frame.
Edges, chocks,
cleats, etc., shall
be deemed to be
included in the item.
1.30 (for
each side)
2.
Flush joinery
Measured flat (not
girthed) including
1.20 (for
each side)
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CHOWKAT or Frame.
Edges, chocks,
cleats, etc., shall
be deemed to be
included in the item.
3.
Fully glazed or
gauzed joinery
Measured flat (not
girthed), including
CHOWKAT or frame.
Edges, chocks,
cleats, etc., shall
be deemed to be
included in the item.
0.80 (for
each side)
4.
Partly Panelled
and Partly glazed
or gauzed joinery
Measured flat (not
girthed), including
CHOWKAT or frame.
Edges, chocks,
cleats, etc., shall
be deemed to be
included in the item.
1.00 (for
each side)
5.
Fully venetioned
or louvred joinery
or gauzed joinery
Measured flat (not
girthed), including
CHOWKAT or frame.
Edges, chocks,
cleats, etc., shall
be deemed to be
included in the item.
1.80 (for
each side)
6.
Weather boarding
Measured flat (not
girthed), supporting framework shall
not be measured
separately.
1.20 (for
each side)
7.
Wood shingle
roofing
Measured flat (not
girthed)
1.10 (for
each side)
8.
Boarding with cover
fillets and match
boarding.
Measured flat (not
girthed)
1.05 (for
each side)
9.
Tile and slate
battening.
Measured flat (not
all) no deduction
shall be made for
open spaces.
0.80 (for
painting
all over)
10.
Trellis (or JAFRI
work) one-way or
two-way.
Measured flat over
all; no deduction
shall be made for
open spaces;
supporting members
2.00 (for
painting
all over)
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shall not be
measured separately.
11.
Guard bars,
balustrades, gates,
gratings, grills
expanded metal and
railings.
Measured flat over
all; no deduction
shall be made for
open spaces;
supporting members
shall not be
measured separately.
1.00 (for
painting
all over)
12.
Gates, and open
palisade fencing,
including standards,
braces, rails,
stays, etc.
Measured flat over
all; no deduction
shall be made for
open spaces;
supporting members
shall not be
measured separately.
1.00 (for
painting
all over)
13.
Carved or enriched
Measured flat
2.00
14.
Steel roller
shutters
Measured flat (size
of opening) Overall
Jamb guides, bottom
rails and locking
arrangement, etc.
shall be included in
the item (top cover
shall be measured
separately).
1.10 (for
each side)
15.
Plain sheet steel
doors and windows.
Measured flat (not
girthed) including
frame, edges, etc.
1.10 (for
each side)
16.
Fully glazed or
gauzed steel doors
and windows.
Measured flat (not
girthed) including
frame, edges, etc.
0.50 (for
each side)
17.
Partly Panelled and
Partly glazed or
gauzed steel doors.
Measured flat (not
girthed) including
frame, edges, etc.
0.80 (for
each side)
18.
Collapsible gate.
Measured Flat (size
of opening)
1.50 (for
painting
all over
NOTE :
The height shall be taken from the bottom of the lowest rail, if the palisades do not go below it
(or from the lower end of palisades, if they project below the lowest rail) upto the top of
palisades, but not upto the top of the standards, if they are higher than the palisades.
Similarly for gates depth of roller shall not be considered while measuring the height.
*********
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SECTION – 14
FALSE CEILING
1.0 METAL FALSE CEILING
Eco Perforated metal Lay in ceilings System (Fameline/Armstrong or approved
equivalent make) consisting of 600x600mm Lay in tiles made of Aluminium Alloy 1100 with
powder coated(polyester base) to 60 microns in 0.7 mm thickness in approved colour with
standard perforation of 2.6mm dia & open area of 17% and Freudenberg Soundtex
acoustical fleece glued to the back of the tile to be laid on grid systems with 15mm wide T section flanges colour white having rotary stitching on the Main Runner, 1200 mm & 600 mm
Cross Tees. The T Sections have a Galvanizing of 120 grams per M2 & passed through 500
hrs of Salt test. The tiles should have Humidity Resistance (RH) of 100%, NRC of 0.70, Fire
Performance A2-s1.d0 in module size of 600 X 600 mm, suitable for Green Building
application,
with
Recycled
content
of
50%.
The Tile & Grid system used together should carry a 15 year warrantee.
INSTALLATION: To comprise main runner spaced at 1200mm centers securely fixed to the
structural suffix at 1200mm maximum centre & not more than 150mm from spliced joints.
The First/Last suspension system at the end of each main runner should not be greater than
600mm from the adjacent wall. 1800mm long cross tees to be interlocked between main
runners at 300mm centre to form 1800 x 300 mm module. Cut cross tees longer than
600mm require independent support. Perimeter trim to be wall angles, secured to walls at
450 mm maximum centers.
2.0 GYPSUM FALSE CEILING
Mositure resistant seamless gypsum ceiling with Gyproc MR or approved equivalent
make of 12.5 mm thick, fixed to the underside of the suspended grid formed of GI perimeter
channel of size 20 x 28 x 30 mm fixed along the wall by using wood screws and metal
expansion rawl plugs. The GI intermediate channel of size 15 x 45 x 15 x 0.90 mm shall be
fixed to the suspended strap hanger / GI ceiling angle at intervals not more than 1220 mm.
The suspended GI ceiling angle /. Strap hanger is to be connected with GI soffit cleat of size
37 x 27 x 25 x 1.6 mm and it should be fixed on the roof slab / beam, by using metal
expansion fasteners (wt. Type) of 12.5 mm dia. to a length of 35 mm with 6 mm dia. bolt /
screw at top ends.
The GI ceiling section of size 80 x 26 x 0.5 mm (MF 5) is to be provided across the
intermediate channel at intervals not more than 457 mm centres at bottom and the
same shall be fixed by GI connection clips 2.64 mm dia. at the intersection points.
The ends of ceiling section channel by adopting an overlap length of minimum 150
mm, connected with intermediate channel shall be fixed to perimeter channel in
insertion. The gypboard shall be fixed to the under side of the suspended grid by
using 25 mm long dry wall screws. The joints shall be finished with joint paper tape
by using jointing compound of Saint Gobain Gyproc or approved equivalent make
and applying over it 3 layers of the filler compound to provide a smooth surface. The
ceiling surface shall be painted with three coats of approved first quality acrylic
emulsion over a coat of primer etc. complete.
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SECTION – 15
FALSE FLOORING
Access floor systems of Unitile® or approved equivalent make all as per following
specifications confirming to PSA MOB - PF2 PS/SPU or NFPA 262 standards.
System : Access floor system to be installed shall provide a maximum finished floor height
of upto 600mm from the existing floor level. The system shall provide for suitable pedestal
and under-structure designed to withstand various static loads and rolling loads subjected to
it in an office / server / DCS / panel / rack area. The entire Access floor system shall provide
for adequate fire resistance, acoustic barrier and air leakage resistance.
Panels : Access Floor panel of size 600x600 mm shall be all steel welded construction, with
an enclosed bottom pan of 64 hemispherical cones and top plain sheet which are fuse
welded at 124 locations to form a panel of an overall depth of 37 mm. The inner empty core
of the panel is injected with a light weight fire retardant, non combustible cementitious
compound at high pressure to fill in all the crevices of the panel and ensures support of not
less than 85% of the top surface area of the panel. The panel after cleaning, degreasing,
phosphate by 7 tank process is coated with 40 micron epoxy coat and is heated to achieve
maximum adhesion and surface resistance. The Panels shall be UL listed/ FM approved.
The panel is then laminated with 1.5 mm thick fire retardant floor grade antistatic
laminate/pvc on a semi -automated lamination line to ensure maximum bonding to the steel
surface. The edges of the laminated/PVC are protected with black PVC edge trim 5mm wide
on all sides. This edge trim is mechanically locked and sealed in place to avoid detachment
Pedestals : Pedestal installed to support the panel shall be suitable to achieve a finished
floor height of 75 to 600mm. Pedestal design shall confirm speedy assembly and removal
for relocation and maintenance. Pedestal base to be permanently secured to position on the
sub floor. Pedestal assembly shall provide for easy adjustment of leveling and accurately
align panels to ensure lateral restrain. Pedestals shall support an axial load of 2000 Kgs,
without permanent deflection and an ultimate load of 3500 Kegs. Pedestal head shall be
designed to avoid any rattle or squeaks.
Pedestal Assembly : Consisting of 100 x 100 x 2mm thick galvanized epoxy polyester
coated MS Base plate die-pressed orbitally riveted to a 21mm O.D. 2.5mm thick epoxy
coated MS pipe to engage the pedestal head assembly. The pedestal head assembly
consists of an embossed steel plate having 4 holes with ¼ th tapping for fastening and
locating of tile ; orbitally riveted to a corresponding threaded stud 16mmdia. (O.D), length
100mm which is designed to engage the pedestal base assembly. The assembly shall
provide a range of height adjustment upto 25mm, with the help of check nuts.
Understructure : Understructure system consists of stringers of size 570 x 32x 20 x 1.5mm
to form a grid of 600 x 600mm. These stringers are locked into the pedestal head and run
both ways. The US system shall provide adequate solid, rigid and quiet support for access
floor panels. The US system shall provide a minimum clear, uninterrupted height of 550
mm between the bottom of the floor and bottom of the access floor for electrical conduiting
and wiring.
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Stringers : Stringer system is all steel construction, rectangular channels 30 x 20 x 1.6mm
thick with pre-punched counter sunk holes at both ends for securing the stringers onto the
pedestal head ensuring maximum lateral stability in all directions. The grid formed by the
pedestal and stringer assembly shall receive the floor panel.
Panel Loading: The panel dimensions and performance must confirm with PSA MOB - PF2
PS/SPU standards for a heavy duty panel and must comply with the, Concentrated Point
Load : 450 kgs on a 25 x 25 mm square on the centre of the panel with a maximum
permissible deflecting of not more than 2.5mm & Uniformly Distributed Load (UDL): 1200
kg/M2 with a maximum permissible deflection of not more than 2.0mm.
Fire Rating : The Panels shall confirm to Class O & Class 1 Fire Ratings tested as per BS
476 Part 6 & 7
The height of the jacks shall be 450 mm .
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SECTION – 16
WATERPROOFING TREATMENT
TABLE OF CONTENTS
1.0
Scope
2.0
General Requirements
3.0
Codes and Standards
4.0
Materials
5.0
Surface Preparation
6.0
Different Stages Treatment to Underground Structures
7.0
Treatment to Roof slab
8.0
Treatment to Sunken Slab
9.0
Guarantee
10.0
Mode of Measurements
11.0
Proforma of Guarantee Certificate
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WATERPROOFING TREATMENT
1.00
SCOPE
1.01
This specification covers the general requirements for water proofing to the underground
structure, machinery foundation, pits, trenches, lift pits, pile and pile cap, roof slab, toilet sunken
slab etc.
2.00
GENERAL REQUIREMENTS
3.00
2.01
Waterproofing treatment shall be done with waterproofing materials of approved
reputed manufacturers and applied by specialist firms with long experience in the
particular trade and proven track record.
2.02
The Contractor shall furnish all skilled and unskilled labour, plant, tools, tackle,
equipment, men, materials required for complete execution of the work in accordance
with the drawings and as described herein and/or as directed by the Engineer-inCharge.
2.03
The Contractor shall strictly follow, at all stages of work, the stipulations contained in
the Indian Standard Safety Code and the provisions of the Safety Rules as specified
in the General Conditions of the Contract for ensuring safety of men and materials.
2.04
Any approval, instructions, permission, checking, review etc. whatsoever by the
Engineer-in-Charge shall not relieve the Contractor of his responsibility and obligation
regarding adequacy, correctness, completeness, safety, strength, workmanship etc.
2.05
The treatment shall include both external and internal type at different stages of
execution involving various operations of preparation, application and induction of
chemicals as water proof barrier in order of sequence.
2.06
The treatment shall be done as per the specifications and instructions of manufacturers
including cost of all materials all leads and lifts, cleaning, scaffolding, curing,
conducting, leakage test etc.
CODES AND STANDARDS
The applicable Indian Standard and Code is given below :
4.00
IS : 2645
:
Integral cement water proofing compounds.
IS : 9103
:
Admixtures for Concrete
:
Ordinary
Portland
cement
conforming to IS : 8112 shall be used.
MATERIALS
Cement
Coarse Aggregate :
Sand
:
Water
:
of
43
Coarse aggregate shall conform to IS:383
Sand shall conform to IS : 383, IS 1542 and IS : 2116
Water shall conform to IS : 456.
Water Proofing Compound
:
Water proofing compound shall conform to IS 2645.
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5.00
SURFACE PREPARATION
The surface to receive the waterproofing shall be cleaned of all dust, dirt, loose material, debris,
mortar droppings, laitance, oil, grease or any other form of foreign matter which might affect
adhesion and left in a saturated, surface dried condition and approval of Engineer-in-Charge
taken before starting the work. The surface to be treated in underground structures shall be
kept dry by continuous pumping of water.
The surface preparation shall be done as per specification and instructions of the manufacturer.
6.00
DIFFERENT STAGES OF TREATMENT TO UNDERGROUND STRUCTURES
6.01
Treatment on PCC levelling course :
Treatment on the top surface of PCC levelling course before casting of base slab :
a) After laying of PCC to proper level and line, the surface shall be cured for the
required period.
b) The PCC surface shall be prepared as described above and kept dry by continuous
pumping of water.
c) 20 mm thick Cement concrete slurry 1:2:4 – using 6 mm and down size aggregate
admixed with approved normal setting integral cement water proofing compound
like CICO No.1 – (Normal Setting Integral Waterproofing Compound)
Conforming to IS : 2645 @ 2% by weight of cement, or approved equivalent at the
rate specified by the manufacturer shall be laid on top of the PCC surface as per
specifications and instructions of the manufacturer. The plaster shall be finished
smooth with a steel trowel and cured for 1day.
d) The plastered surface shall then be coated with two (2) coats of TAPECRETE –
Acrylic Polymer modified cementitous coating, or approved equivalent as per
manufacturer's specification and instructions. The coating shall be cured with water
for 1 day.
e) The surface shall then be covered with another 20 mm thick Cement concrete
slurry 1:2:4 – using 6 mm and down size aggregate as described under clause (c)
above. The treated surface shall be cured for 5 days.
f)
Base slab concrete admixed with CICO No.1 (Normal Setting Integral
Waterproofing Compound) Conforming to IS : 2645 or CICO SUPAPLAST
Super Plasticiser-cum-High Range Water Reducing Admixture-CumWaterproofer conforming to IS : 9103 as Plasticiser and IS : 2645 as Integral
Waterproofer as per recommended dosage or approved equivalent shall be laid
over this treated surface. This item no. (a) shall be operated if so specifically
ordered in the bills of quantities.
Note :
Applicable to PCC levelling course below base slab of under ground sump,
under ground structure, lift pit, pile and pile cap, machinery foundations, trenches etc.
In the case of waterproofing for pile cap specified in the B.O.Q.the junctions of treatment
for pile and pile cap shall provide the following ;G.I.Nozzles 19mm dia projecting out to
the required height and to be inclined form the natural Ground level so as to facilitate
grouting the junctions of pile and pile cap through the nozzles by waterproofing agency.
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6.02
Chemical injection treatment to base slab :
Chemical injection treatment in the form of pressure grouting to the concrete
mass of base slab :
The treatment shall be as per manufacturers specification adopting following general
operation details :
a) After casting of base slab and side wall, the surface shall be cured as per the
standard practice.
b) 18 mm dia. holes shall be drilled on top of base slab to required depth using
pneumatic hammer drill in grid pattern at a spacing not exceeding 1 M centre to
centre. Particular care should be taken to drill holes and fix GI nozzles along the
construction joint line wherever it occurs and on other vulnerable areas.
c) The depth of GI nozzles shall be adequate to push the grout at all depth. GI
nozzles shall be fixed in the holes drilled using single component rapid setting
mortar like CICO No.3, or approved equivalent.
d) Cement slurry mixed with grout admixture like CICO Non-Shrink Polymer
Waterproof Grouting Compound at 2% by weight of cement or approved
equivalent as per specification and instruction of the manufacturer shall be
prepared to the required consistency.
e) The prepared slurry shall be injected through the prefixed nozzles under pressure
using grout pump to fill all possible pores and gaps left within the concrete mass.
When the flow of the grout stops the grout mains shall be disconnected.
f)
The GI nozzles shall be sealed off with single component rapid setting mortar like
CICO NO. 3, or approved equivalent after the injection operation is over.
g) The grout holes shall then be finished after cutting the projected nozzles.
Note :
Applicable to base slab of underground sump, underground structure, pile and pipe
cap, lift pit, trenches etc.
6.03
Treatment to side wall
Treatment to side wall from exterior surface
a. Casting of RCC walls shall be done with specified grade of concrete admixed with
CICO No.1 (Normal Setting Integral Waterproofing Compound) Conforming to
IS : 2645 or CICO SUPAPLAST Super Plasticiser-cum-High Range Water
Reducing Admixture-Cum-Waterproofer conforming to IS : 9103 as
Plasticiser and IS : 2645 as Integral Waterproofer as per recommended dosage
or approved equivalent, shall be laid over this treated surface. This item no. (a)
shall be operated if so specifically ordered in the bills of quantities.
b) After casting of side wall to the required height, the surface shall be cured as per
the standard practice.
c) Chemical injection treatment in the form of pressure grouting shall be done as
given below :
i.
18 mm dia. holes shall be drilled on exterior surface of wall to required depth
using pneumatic hammer drill in grid pattern at a spacing not exceeding 1 M
centre to centre. Particular care should be taken to drill holes and fix GI
nozzles along the construction joint line wherever it occurs and on other
vulnerable areas.
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ii.
The depth of GI nozzles shall be adequate to push the grout at all depth. GI
nozzles shall be fixed in the holes drilled using single component rapid setting
mortar like CICO No.3, or approved equivalent.
iii. Cement slurry mixed with grout admixture like CICO Non-Shrink Polymer
Waterproof Grouting Compound at 2% by weight of cement or approved
equivalent as per specification and instruction of the manufacturer shall be
prepared to the required consistency.
iv. The prepared slurry shall be injected through the prefixed nozzles under
pressure using grout pump to fill all possible pores and gaps left within the
concrete mass. When the flow of the grout stops the grout mains shall be
disconnected.
v.
The GI nozzles shall be sealed off with single component rapid setting mortar
like CICO NO. 3, or approved equivalent after the injection operation is over.
vi. The grout holes shall then be finished after cutting the projected nozzles.
d) The outside surface of wall shall be prepared as described under head "Surface
Preparation" after the chemical injection treatment is over.
e) The prepared exterior surface shall be coated (2 coats) with TAPECRETE –
Acrylic Polymer modified cementitous coating, or approved equivalent as per
Manufacturer's Specification and instructions. The surface shall be cured with
water for 1 day.
f)
On top of the coating a 15 mm thick plaster with cement sand mortar (1:4) admixed
with CICO NO. 1 – Normal Setting Integral Waterproofing Compound
conforming to IS : 2645, or approved equivalent at the rate specified by the
manufacturer shall be applied as per specifications and instructions of the
manufacturer. The plaster shall be finished smooth with a steel trowel and cured
for 5 days.
g) In case of nil accessibility owing to constructional hazards, etc. the interior surface
of wall may be treated as mentioned above to produce same effect.
Note :
Applicable to side walls of underground sump, underground structure, lift pit, trenches
and retaining wall. In the case of underground sump interior surface of walls shall be
treated.
6.04
Treatment to cover slab :
a) After casting of cover slab with specified grade of concrete admixed with CICO
No.1 (Normal Setting Integral Waterproofing Compound) Conforming to IS :
2645 or CICO SUPAPLAST Super Plasticiser-cum-High Range Water
Reducing Admixture-Cum-Waterproofer conforming to IS : 9103 as
Plasticiser and IS : 2645 as Integral Waterproofer as per recommended dosage
or approved equivalent, the surface shall be cured for the required period. This item
no. (a) shall be operated if so specifically ordered in the bills of quantities
b) Treatment - to side walls including chemical injection treatment as described above
shall be adopted for cover slab also.
Note :
Applicable to cover slab of under ground structure, under ground sump etc.
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7.00
TREATMENT TO ROOF SLABS
7.01
Method - I
a) After casting of roof slab with specified grade of concrete admixed with CICO
No.1 (Normal Setting Integral Waterproofing Compound) Conforming to IS : 2645
or CICO SUPAPLAST Super Plasticiser-cum-High Range Water Reducing
Admixture-Cum-Waterproofer conforming to IS : 9103 as Plasticiser and IS : 2645
as Integral Waterproofer as per recommended dosage or approved equivalent, the
surface shall be cured for the required period. This item no. (a) shall be operated if so
specifically ordered in the bills of quantities
b) Parapet wall shall be constructed and plastered.
c) The surface shall then be prepared as described above under head "Surface
preparation".
d) Two coats of TAPECRETE – Acrylic Polymer modified cementitous slurry coat
shall be applied over the RCC morter roof slab surface and to be taken to the
vertical parapet walls and turned down the exterior surface of the parapet walls.
e) A layer of fibre glass water proofing cloth ( MGI - 207 - T2 ) is laid over the first coat
of cement slurry coat as specified under point (d) above. Fibre Glass Cloth shall be
laid over the TAPECRETE applied surface when the coating is still green.
f)
A layer of 20 mm thick cement mortar 1:4 admixed with CICO NO - 1 (normal
setting integral water proofing compound) or other approved equivalent make
compound shall be spread over the operation specified in point (e) above.
g) On the layer of ccement mortar water proofing cloths specified under point (f)
above, screed concrete 1:2:4 mix using 20mm and down size Course greaded
blue granite Aggregate to an average minimum thickness of 125 mm (i.e.
minimum 75 mm thickness at lower end/near rainwater outlet and 175 mm
thickness at higher end/at the ridge). An additional layer of Screed concrete shall
be laid over the existing concrete surface if required to get the required gradient
for adequate drainage giving a slope of approximately 1 in 100,which will be
measured separately under relevant item. Screed concrete shall be laid with one
layer of IRC mesh no 65 and concrete shall be mixed with Fibermesh Harbourite
or equivalent100% virgin fine fibrillated polypropylene fibers containing no
reprocessed olefin materials to ISO 1873 - PP -H, FN 28-02-045 and the fibres
shall be mixed at the rate of 0.90 Kg/Cum.and curing shall be carried out for
minimum three days. Fibers shall confirm to ASTM C -1116 & ACI 524 R - 93.
h) On the spread mortar (specified under point (g) above) provide and lay a layer of
fibre glass water proofing cloth ( MGI - 207 - T6)
i) A final layer of cement mortar 1:4 admixed with water proofing compound like
CICO NO:1 or approved equivalent make shall be laid to a thickness of 20 mm
over the treatment specified in point (h) above.
j)
Making machine cut grooves of size 4 x 4mm on a grid of 5 x 5 M (Plan area not
exceeding 25 Sqm) and the grooves shall be filled with Polysulphite sealent -"
VULKEM - 202 PU" from supreme or approved equivalent make and finish the
surface neatly and the surface shall be cured for 15 days as per manufacturer's
specification.This treatment shall be carried out in the openings provided in the
terrace for rain water down take pipes.
Leakage test shall be conducted by storing water on the terrace for about 25 mm
depth continuously for a period of for a period of 7days.
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7.02
Method - II
a) After casting of roof slab with specified grade of concrete admixed with CICO
No.1 (Normal Setting Integral Waterproofing Compound) Conforming to IS : 2645
or CICO SUPAPLAST Super Plasticiser-cum-High Range Water Reducing
Admixture-Cum-Waterproofer conforming to IS : 9103 as Plasticiser and IS : 2645
as Integral Waterproofer as per recommended dosage or approved equivalent, the
surface shall be cured for the required period. This item no. (a) shall be operated if so
specifically ordered in the bills of quantities
b) The surface shall then be prepared as described above under head "Surface
preparation".
c) Two coats of TAPECRETE Acrylic Polymer Cementitous coating shall be
applied over the prepared surface of roof slab.
d) A layer of 20 mm thick cement mortar 1:4 admixed with water proofing compound
like CICO No.1 – Normal Setting Integral Waterproofing Compound
conforming to IS : 2645, or approved equivalent shall be laid over the
TAPECRETE applied surface.
e) On this surface well burnt best quality brick bats shall be laid to required gradient
for easy drainage giving a slope of approximately 1 in 100. The gap between brick
bats shall be filled with cement mortar 1:4 admixed with water proofing compound
like CICO No.1 – Normal Setting Integral Waterproofing Compound
conforming to IS : 2645, or approved equivalent and the surface shall be cured for
2 days.
f)
A final layer of 20 mm thick cement mortar 1:3 admixed with water proofing
compound like CICO No.1 – Normal Setting Integral Waterproofing Compound
conforming to IS : 2645, or approved equivalent shall be laid on the brick bats and
top neatly finished with false square of size 300 x 300 mm and cured for 15 days.
Treatment of Parapet wall
a) The parapet wall shall be thoroughly cleaned to remove all dust particles.
b) A layer of 15 mm thick cement mortar 1:4 admixed with water proofing compound
like CICO No.1 – Normal Setting Integral Waterproofing Compound
conforming to IS : 2645, or approved equivalent shall be applied on the parapet
wall.
c) A vatta (gola) is then prepared with brick bats using cement mortar 1:4 admixed
with water compound like CICO No.1 – Normal Setting Integral Waterproofing
Compound conforming to IS : 2645, or approved equivalent at the junction
between the slab and wall.
d) The vatta is further plastered with 20 mm thick cement mortar 1:3 mixed with water
proofing compound like CICO No.1 – Normal Setting Integral Waterproofing
Compound conforming to IS : 2645, or approved equivalent.
Leakage test shall be conducted by storing water on the terrace for about 25 mm depth
continuously for a period of 7 days.
Note : The above work shall be got executed by an approved applicator . In case the
Contractor proposed to execute the work by other specialised equivalent firm,
should be got approved by the Engineer-in-Charge.
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8.00
TREATMENT TO SUNKEN SLAB
a) After casting the sunken slab, the surface shall be cured for required period.
b) The inner surface shall be prepared as described above under head "Surface Preparation".
c) The prepared surface shall be plastered with cement mortar 1:4 – 15 mm thick admixed
with CICO No.1 – Normal Setting Integral Waterproofing Compound conforming to IS
: 2645, or approved equivalent at 2% by weight of cement.
d) Two coats of TAPECRETE – Acrylic Polymer Modified Cementitous Slurry Coating
shall be applied over the plastered surface.
e) The surface shall then be covered with another 15 mm thick plaster as described under
clause ( c ) above.
f)
Well burnt best quality brick bats shall be laid in sunken area with C.M 1:4 admixed with
CICO No.1 – Normal Setting Integral Waterproofing Compound conforming to IS :
2645, or approved equivalent at 2% by weight of cement.
g) The top shall be finished with 15 mm thick plaster as described under clause ( c) above.
h) Tiles shall be laid over this treated surface with base mortar by the main contractor.
9.00
GUARANTEE
Guarantee for watertight performance of the structure for a minimum period of 10 years
from the date of completion shall be given in the prescribed form given below. This guarantee
shall be in legal paper in an acceptable form. The guarantee shall be enforceable by the
Employer. If, during the guarantee period, water leaks are noticed in the structure from the
portions treated by the Contractor, the same shall be rectified when called upon immediately, all
at no extra cost to the entire satisfaction of the Employer.
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10.00
MODE OF MEASUREMENT
10.01
Base Slab
On PCC levelling course : Measurements shall be in square metre for the areas
actually treated.
Injection Treatment : Measurements shall be in square metre for the plan areas
actually treated for all thickness / depths.
10.02
Side Walls
Injection Treatment : Measurements shall be in square metre for the area actually
treated for all thickness.
Surface treatment shall be measured in square metre for the areas actually treated.
10.03
Cover Slab
Injection Treatment : Measurements shall be in square metre for the plan area
actually treated for all thickness.
Surface Treatment : Measurements shall be in square metre for the areas actually
treated.
10.04
Roof Slab, Terraces : Measurements shall be in square metre for the plan area
actually treated.
Parapet shall be measured in squaremetre.
10.05
Toilet Sunken Slab :
Bottom : The actual area treated in square metre.
Sides : The actual area treated in square metre above the treated bottom.
Top : The actual area treated in square metre.
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11.0 PROFORMA OF GUARANTEE CERTIFICATE FOR WATERPROOF WORK.
Name of the Firm/Company at its address
Dear Sirs
Water proofing work to ...................................... - Free maintenance guarantee for 10 (Ten) years - Reg.
Agreement No. ...........……. dated ..........…………..
We hereby certify that the work of water proofing to ..................................... has been executed and
completed by us as per specification and in accordance with terms and conditions of contract.
We hereby guarantee that the water proofing treatment given by us to .......................... shall be safe
against any leakage, forming wet patches, dampness etc. for a period of 10 (ten) years from the date of
virtual completion of whole work, from ………........ to ..............……….
If at any time or times during the guaranteed period of 10 (Ten) years the underground structure lift pit,
trenches, roofs, moris, toilets, water tanks and other portion thus treated by us starts leaking or in any
way give way to the influence of water including forming wet patches, dampness etc. due to the
inadequacy of the work carried out or due to any other reason whatsoever relating to the specification,
workmanship etc. including the responsibility for any surface treatment and plumbing etc, we agree to
carry out necessary remedial measures to such extent and so often as may be necessary to free the
said premises from leakage etc without any extra cost to the Employer or to the occupants.
The question of whether there is any leakage or the treatment has given way to water or moisture after
the date of virtual completion of whole work ie. from ………............ to ………........... shall be decided by
the Employer and the decision of the Employer in this regard shall be final and binding on us. We shall
reinstate the surface to its original condition after carrying out the rectification work, if necessary by
bringing new materials at no extra cost to the Employer.
Signature of Contractor :
Name of Company
:
Address
:
Seal
:
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SECTION – 17
STEEL DOORS
1.00
SCOPE
1.01
This specification covers the design, supply of materials, fabrication and installation of factory
made special type of approved make steel fire doors and general purpose doors with all
accessories and including supply and installation of hardwares.
2.00
2.01
GENERAL REQUIREMENTS
The Contractor shall furnish all materials, labour, operations, equipment, tools & plant,
scaffolding and incidentals necessary and required for the completion of all metal work in
connection with steel doors, as called for in the drawings, specifications and bill of quantities
which cover the major requirements only. Anything called for in the tender documents shall
be considered as applicable to the items of work concerned. The supply and installation of
additional fastenings, accessory features and other items not specifically mentioned, but
which are necessary to make a complete functioning installation shall form a part of this
contract.
2.02
All metal work shall be free from defects, impairing strength, durability and appearance and
shall be of the best quality for purposes specified made with structural properties to withstand
safely strains, stresses to which they shall normally be subjected to.
2.03
All fittings shall be of high quality and as specified and as per approval of Engineer-in-Charge.
2.04
The Contractor shall strictly follow, at all stages of work, the stipulations contained in the
Indian Standard Safety Code and the provisions of the safety code and the provision of the
safety rules as specified in the General Conditions of the Contract for ensuring safety of men
and materials.
2.05
Any approval, instructions, permission, checking, review, etc. whatsoever by the Engineer-inCharge, shall not relieve the Contractor of his responsibility and obligation regarding
adequacy, correctness, completeness, safety, strength, quality, workmanship, etc.
3.00
CODES AND STANDARDS
3.01
All standards, specifications, acts, and codes of practice referred to herein shall be the latest
editions including all applicable official amendments and revisions.
3.02
List of certain important Indian Standards, Acts and Codes applicable to this work is given
below. However, the applicable standards and codes shall be as per but not limited to the list
given below :
IS : 277 Galvanised steel sheet (plain and corrugated)
IS : 3614
Metallic and non-metallic fire
and Part – 2 performance criteria.
check
doors
-
Resistance
test
4.00
HOLLOW METAL FIRE DOOR WITH HONEY COMB CORE
4.01
Fire door shall be 2 hour fire rated and door quality shall be approved by TAC/CBRI and
tested conformed to IS : 3614. The door should meet the requirements of Tariff Advisory
Committee (TAC).
Unless otherwise specified, maximum size of door in this type :
Single shutter door
:
1150 mm x 3000 mm
Double shutter door
:
2000 mm x 3000 mm.
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For doors of size 3000 mm height, the options shall be :
4.02
a)
A man operation door of size above 2400 mm height shall be provided with a
removable panel / fixed panel on top with glazing or without glazing as required.
b)
The construction of above panel shall be designed similar to that of a shutter in case of
flush panel to match the exteriors. In the case of glazing a 6 mm thick toughened glass
with clipping arrangement on top shall be provided which shall be mounted on a
transom of approved design.
Frame
a)
Material - Frame to be manufactured from 1.60 mm (16 gauge) galvanized steel
sheets complying with latest IS 277 coating class zinc coating mill phosphatized.
b)
Profile - Door frame profile to be double rebated of dimensions 143 mm x 57 mm
(+/- 0.3) with bending radius of 1.4 mm.
c)
Fabrication - Frame to be fabricated from 1.60 mm thick galvanised steel sheet to
the specified profile and dimensions. Frames fabricated at factory shall be in knock
down form with butt joints for bolted assembly at site.
d)
Door frame preparations - Frames to be provided with a 3 mm thick back plates on
all jambs with provision for anchor bolt fixing to wall openings. All frames to have
reinforcement pads for fixing of door closer, at appropriate location as per
manufacturer’s details.
e)
Frames to have factory finish-pre-punched cut outs to receive specific hardware and
iron mongery.
f)
Frames to be provided with hinge plates 3 mm thick pre-drilled to receive hinges for
screw mounted fixing. All cut outs including hinge plates, strike plates to have mortar
guard covers from inside to prevent cement, dust ingress into cut outs at the time of
grouting.
g)
Frames to have rubber shutter silencer on strike jambs for single shutter frames and
on the head jambs for double shutter frames.
h)
Finish:
Door frames to be suitably cleaned with solvents and etch primered for receiving
primer and top coats.
Door frames to be primered in zinc phosphate stoving
DFT).
primer (35 microns
Door frames to be finished in thermo setting paint (35 microns DFT) of approved
colour and make as specified by Engineer-in-Charge.
4.02
Fire door shutter
a)
Material - Fire door shutter to be manufactured from 1.25 mm (18 gauge) galvanized
sheets conforming to latest IS : 277 coating class zinc coating, mill phosphatized.
b)
Fabrication - Shutters to be press formed to 46 mm thick double skin hollow door
with lock seam joints at stile edges. Shutters to have no visible screws or fasteners
on either face. Internal reinforcement to be provided at top, bottom and stile edges
for desired fire rating.
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c)
Door shutter cores - Shutters to be provided with honeycomb paper core to be
bounded to the inner faces of the shutter.
d)
Door shutter preparations - Shutters to be factory prepared with pre-punched
cutouts and reinforcements to receive iron mongery as per final finish hardware
schedule. The shutter should have an interlocking arrangement at this stile edges for
flat surface on either side.
Shutters to have pre-drilled hinge plates with hinge guard covers. Shutters with locks
to have concealed lock box with lock fixing brackets with pre-tapped holes.
e)
For shutter with door closer reinforcement pads to be provided at appropriate location
as per manufacturer’s design.
All iron mongery preparation to have adequate reinforcement for flushes fixing at site.
f)
Vision panel for Fire rated door :
Vision panel to be provided with Boroslicate
clear float glass of the thickness 6 mm for upto two hours fire rating. Glass to be
fixed with clip on frames for square and rectangular vision panels and with spin
turned rings for circular vision panels. Unless otherwise specified, standard sizes are
200 mm x 200 mm, and 380 mm diameter.
g)
Finish: Shutters to be suitably cleaned with solvents and etch primered for receiving
primer and top coats.
Shutters to be primered in zinc phosphate stoving primer (35 microns DFT).
Shutters to be finished in thermo setting paint (35 microns DFT) of approved colour
and make as specified by Engineer-in-Charge.
4.04
4.05
PACKING
a)
Frame: Individual frames members to be wrapped in polyethene sheets and placed
in individual card board boxes. Individual boxes to be sealed. Frames to be
assembled at site with aid of roofing bolts.
b)
Shutters:
Shutters to be wrapped in polyethene sheets and further packed in
card board and duly strapped. All frames and shutters duly marked as per door
schedule for easy identification at site.
STORAGE
All knocked down frames shall be stacked flat and shutters vertically on wooden runners and
suitably covered as per the instructions of manufacturer to prevent rust and damage.
4.06
INSTALLATION
i.
Door frame fixing :
The door frames should be assembled adjacent to the place
of installation as the frames are not designed for transporting in an assembled
condition. After assembly it is to be ensured that all threaded preparations are
covered from the back of the frame using 15 x 10 self adhesive sponge strip to
prevent penetration of mortar back- fill into screw threads. The head member of
assembled frame shall be positioned against jambs ensuring correct alignment and
secured using M8 x 20 long plated bolts together with nuts spring and flat washers.
The assembled frame shall be kept in position within the opening by means of
bracing. In order to correctly position the frame against finished floor level or equalise
on adjustable floor anchors where specified, shim shall be used under jambs. The
frame shall be checked for squareness, alignment, twist etc. with carpenters bevel
and plumb.
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A tie rod shall be fixed to the frame during installation to ensure the correct
dimensions between the frame rebates and the same may be removed after
installation.
Where a 2nd fix application is required a shim detail is suggested to take up gap
between frame and existing opening.
Existing masonry wall openings - Metal expansion shields
ii)
a)
Brace, position, level etc.
b)
Mark all positions of fixings on wall.
c)
Remove frame and drill wall to appropriate specified size.
d)
Fit rod anchor shells metal expansion bolts into the wall.
e)
Fit jamb spacer bracket into back of frame profile.
f)
Reposition frame back into opening and realign.
g)
Lightly screw CSK HD machine screws into shells, shim behind frame.
h)
Slowly tighten screws continually checking plumb, square etc. Finally ensure
frames are not deformed as tightened.
i)
After fixing the frame shall be grouted with cement mortar 1:3
or Plaster of Paris or Gypsum powder as approved. Gap between frame and
wall to be closed by cement pointing using cement mortar 1:3.
j)
Back fill the frame through holes provided and insert nylon plugs.
Door shutter fixing:
Fix all the hardware to the door shutter like hinges, flush
bolts, bolts, mortice locks, door closer, door stoppers, handles etc. with the
appropriate screws and bolts supplied.
The shutter is to be then fixed to the frame which is already installed. Align the
shutter to match the hardware to the cutouts in the frame. Tighten the hinge screws.
iii)
Application of ‘FLAT’ seal (for smoke check if specifically required)
Clean door jamb rebate surfaces of all dust, oil etc. Affix self-adhesive ‘FLAT’ seal on
the door frame rebates as indicated by the manufacturer on hinge jambs, strike
jambs, head member and sill.
4.07
FIRE DOOR - HARDWARE SCHEDULE
a)
Where locking /
provision is required
latching
:
Mortice sashlock 50/60 mm backset.
Double action deadbolt brass / nickel
finish of Dorset make.
5 pin tumbler brass cylinder 70 mm length.
One side key one side knob operation and
Brass/Nickel lever handles with
independent escutcheon of Dorset make.
b)
Where latching
required
provision
is
:
Mortice latch 50 mm backset field
reversible latch, brass/nickel finish of
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Dorset make.
and
Brass lever handles of Dorset
make.
c)
Hinges
:
Stainless steel double bearing butt
hinges 102 x 89 x 3 mm thick. Hinge
holes template drilled as per ANSI of
approved make.
d)
Door closer
:
Hydraulic door closer double speed
pressure die cast body with steel rack
and pinion of Dorma make.
e)
Flush bolts (Double doors)
:
Concealed steel flush bolts for fixing on
inactive shutter 300 mm length of
Superbright / Ryobi make.
f)
Smoke seal
:
Self adhesive EPDM smoke seal
‘FLAT’ type (Polyethylene cross linked
foam of size 2 mm thick and 12.5 mm
width) of Monarch Make.
Stainless Steel “D” handle
:
Stainless steel “D” handle 19 mm x 300
mm length. Through bolt fixing with
estruction in satin finish of Dorma or Dline make.
g)
h)
Panic Emergency exist device
:
Rim latch of advance design for single
door
with
or
without
locking
arrangements of Dorma or Briton
make.
Note : If the locking arrangement is required the above devices shall be
married with Dorset lock.
5.00
HOLLOW GENERAL PURPOSE DOORS WITH HONEYCOMB CORE
5.01
Unless otherwise specified, maximum size of door in this type :
Single shutter
door
Double shutter door
:
1150 mm x 3000 mm
:
2000 mm x 3000 mm
For doors of size 3000 mm height, the options shall be :
a)
A man operation door of size above 2049 mm height shall be provided with a removable
panel / fixed panel on top with glazing or without glazing as required.
b)
The construction of above panel shall be designed similar to that of a shutter in case of
flush panel to match the exteriors. In the case of glazing a 6 mm thick toughened glass
with clipping arrangement on top shall be provided which shall be mounted on a
transom of approved design.
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5.02
FRAME
a)
Material - Frame to be manufactured from 1.25 mm (18 gauge) galvanised steel
sheets complying with latest IS 277 coating class zinc coating mill phosphatized.
b)
Profile - Door frame profile to be single rebated of dimensions 100 mm x 57 mm
(+/- 0.3) with bending radius of 1.2 mm.
c)
Fabrication - Frame to be fabricated from 1.25 mm thick galvanised steel sheet to
the specified profile and dimensions. Frames fabricated at factory shall be in knock
down form with butt joints for bolted assembly at site.
d)
Door frame preparations - Frames to be provided with a 3 mm thick back plates on
all jambs with provision for anchor bolt fixing to wall openings. All frames to have
reinforcement pads for fixing of door closer at appropriate location as per
manufacturer’s details.
e)
Frames to have factory finish - prepunched cut outs to receive specific hardware and
iron mongery.
f)
Frames to be provided with hinge plates 3 mm thick pre-drilled to receive hinges for
screw mounted fixing. All cut outs including hinge plates, strike plates to have mortar
guard covers to prevent cement, dust ingress into cut outs.
g)
Frames to have rubber shutter silencer on strike jambs for single shutter frames and
on the head jambs for double shutter frames.
h)
Finish - Door frames to be suitably cleaned with solvents and etch primered for
receiving primer and top coats.
Door frames to be primered in zinc phosphate stoving
DFT).
primer (35 mircons
Door frames to be finished in thermo setting paint (35 microns DFT) of approved
colour and make as specified by Engineer-in-Charge.
5.03
GENERAL PURPOSE DOOR SHUTTER
a)
Material :
General purpose door shutter to be manufactured from 0.80 mm (22
gauge) galvanised sheets conforming to latest IS : 277 coating class zinc coating, mill
phosphatized.
b)
Fabrication: Shutters to be press formed to 46 mm thick double skin hollow door
with lock seam joints at stile edges. Shutters to have no visible screws or fasteners
on either face.
c)
Door shutter core :
Shutters to be provided with honeycomb paper core to be
bounded to the inner faces of the shutter.
d)
Door shutter preparations:
Shutters to be factory prepared with pre-punched
cutouts and reinforcements to receive iron mongery as per final finish hardware
schedule. The shutter should have an interlocking arrangement at this stile edges for
flat surface on either side.
Shutters to have pre-drilled hinge plates with hinge guard covers. Shutters with locks
to have concealed lock box with lock fixing brackets with pre-tapped holes.
All iron mongery preparation to have adequate reinforcement for flush fixing at site.
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e)
For shutter with door closer reinforcement pads to be provided at appropriate location
as per manufacturer’s design.
f)
Vision panel: Vision panel to be provided with toughened float glass of the
thickness 6 mm. Glass to be fixed with clip on frames for square and rectangular
vision panels and with spin turned rings for circular vision panels. Unless otherwise
specified, standard sizes are 130 mm x 270 mm, 200 mm x 300 mm, 450 mm x 750
mm and 360 mm diameter.
g)
Finish: Shutters to be suitably cleaned with solvents and etch primered for receiving
primer and top coats.
Shutters to be primered in zinc phosphate stoving primer (35 microns DFT).
Shutters to be finished in thermo setting polyurethane aliphtic grade paint (35 microns
DFT) of approved colour and make as specified by Engineer-in-Charge.
5.04
5.05
PACKING
a)
Frame; Individual frames members to be wrapped in polyethene sheets and
placed in individual card board boxes. Individual boxes to be sealed. Frames to be
assembled at site with aid of roofing bolts.
b)
Shutters: Shutters to be wrapped in polyethene sheets and further packed in card
board and duly strapped. All frames and shutters duly marked as per door schedule
for easy identification at site.
STORAGE
Storage shall be the same as specified in clause 4.05 for fire door.
5.06
INSTALLATION
Installation shall be the same as specified in clause 4.06 for fire door.
5.07
GENERAL PURPOSE DOOR - HARDWARE SCHEDULE
a)
Where locking /
provision is required
b)
Where latching
required
c)
Where
required
d)
e)
locking
latching
provision
:
is
:
provision
Mortice sashlock 50/60 mm backset.
Double action deadbolt brass / nickel
finish of Dorset make.
5 pin tumbler brass cylinder 70 mm
length. One side key one side knob
operation and Nickel / Brass lever
handles with independent escutcheon
of Dorset make.
Mortice latch 50 mm backset field
reversible latch, brass/nickel finish of
Dorset make. And Nickel / Brass lever
handles of Dorset make.
:
Mortice dead bolt double action 50 mm
backset saw resistance bolt - brass /
nickel finish of Dorset make.
Cylindrical knob Lock set
:
Hinges
:
One side key one side push button
stainless steel satin finish of ACME or
Brass / Satin finish Godrej.
Stainless steel double bearing butt
hinges 102 x 89 x 3 mm thick hinge
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holes template drilled as per ANSI of
approved make.
f)
Door Closer
:
Hydraulic heavy duty double speed
pressure die cast body with steel rack
and pinion door closer of Dorma make.
g)
Flush bolts (Double doors)
:
Concealed flush bolts 300 mm length
with steel bolt of approved make.
h)
Stainless Steel “D” handle
:
Stainless steel “D” handles 19 mm x
300 mm length. Through bolt fixing
with estruction in satin finish of Dorma
or d-line make.
i)
Stainless steel push plate
:
Stainless steel push plate of size
surface fixed size 300 x 75 x 1.6 mm.
Of Dorma make.
j)
Stainless Steel “D/SS” push
plate
:
k)
6.00
Smoke seal
:
Where only one side handle
is
required and one side Push Plate shall
be as detailed below.
•
300 mm x 19 mm dia. SS “D”
handle with inside bolt fixing.
•
300 x 75 x 1.6 mm SS push
plate
fixed
with
surface
mounted Philips head screw.
Self adhesive EPDM Smoke Seal ‘FLAT’
type (Polyethylene cross linked foam of
size 2 mm thick and 12.5 mm width) of
Monarch make.
FIELD INSPECTION
After installing the door, the Contractor shall test the performance of the shutter in the
presence of the Engineer-in-Charge. The doors shall be smoothly operable under all ambient
conditions. All control and locking devices shall give fault free performance.
7.00
MODE OF MEASUREMENT
Measurement shall be in square metre for clear area over one face inclusive of exposed
frame. Portions embedded in masonry / concrete / flooring shall not be measured.
****
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LIST OF APPROVED MAKES
A
S.No
CIVIL WORKS
Materials
Approved Makes
1
Anti termite treatment
Biflex
2
Grey Cement (43/53 Grade)
Ultra tech / Birla/ACC/Dalmia/Zuari
3
White Cement
Birla / JK
4
Tor Steel (TMT)
SAIL / VIZAG /TISCO /RNIL
5
Structural steel
SAIL / VIZAG/ TISCO
6
Polyrutherene Board
Armour Board / SIL-FIL.
7
Polysulphide Sealant
Dr.Fixit
8
Alumium extrusion
Bhoruka / Jindal / Hindalco
9
Water Swelling bars
Synkoflex
10
Non-Absorbent Closed Cell PE
Board
Tristar intech /Supreme Ind
11
Polymeric Polyethylene Felt
Bitumat Co. Ltd / Soprema / Tamco
12
Expanded Polystyrene
(Thermocole)
Beardshell / Toshiba/Supreme
13
Hessian Based Felt
Bitumat Co. Ltd / Soprema/Tamco
14
Tile/ Stone Joint Grout/
Adhesive
Laticrete/ Bal Eudura / Dr.Fixit
15
Building Lime
Satna
16
White Washing Lime
Dehradun
17
Paints/ Primer
ICI / Asian Paints/ Nerolac
18
Concrete admixture
BASF / Mc Bauchemie /Ceracem
19
Non Metallic Floor Hardener
EMALITE OF Structural
20
False Ceiling ( Mineral Fibre )
USG / Armstrong
21
False Ceiling (Metal Ceiling )
Fameline/ Hunter Douglas / Armstrong
22
Fasteners for Anchors
Hilti / Fischer
23
Acrylic/polymer modified
coatings
Ployplus/BASF / CICO / SIKA
24
Injection grouts
Polyplus/BASF / CICO / SIKA
25
Membrane water proofing
De boer / Polyplus/ Henkel/BASF
26
27
28
29
Interlocking Pavers and Grass
paver
RCC Factory made Kerbs &
Cover Slabs
SS Drains with channels and
grating cover
Column Guards ( Rubber )
Basant Beton / Aeon
Basant Beton
Chilli /Aco NECO
Catex / Arpitha / Dural
179
Chennai Metro Rail Limited
Part 1 ( c ) Technical Specification
30
Flush Door
Archid /Greenply/Anchor /Diamond/Jacons
31
Hardware Fittings
Dorma / Stanley
32
Wood Preservatives
Berger / Wood guard / Termisil
33
Epoxy / PU flooring
Cipy / BASF / Fosroc
34
Ceramic Tiles
Euro / Kajaria / Nitco / RAK/Somany/Bellisimo
35
Vitrified Tiles
Euro / Kajaria / Nitco / RAK/Somany/Bellisimo
36
Ceramics for dado
Johnson / Kajaria / NITCO/Somany
37
Laminate
Vir / greenlam / Marino
38
Venner
Sharon / Durian / Jacsons
39
Tile Grout and Adhesive
Laticrete / Keracol / Bal Endura
40
Rolling Shutter
Gandhi / Hormann
41
Solid concrete Blocks
Aeons / Bessar
42
Gratings
Indiana / NECO
43
Barrier Mat
Gradus/ Interface/ Millken
44
Plywood
Greenply / Uniply / Euro
45
Light Weight Concrete
Hemalite/ Vermiculite
46
S.S. Handrail
D-Line
47
Frosting films
3M
48
Autoclaved Cellular (Aerated)
Concrete Blocks
Aerocon Blocks and Conmat India
49
RCC hume pipes
Premier Spun Pipe/ Rashmi enterprises/Sabarmani
50
Manhole Cover
NECO
51
PP Rungs
Arpitha
52
Lacqured Glass
Saint Gobin
53
Calcium Silicate
Hilux
180
Chennai Metro Rail Ltd
Part 2 – Bill Of Quantities
`
CHENNAI METRO RAIL LIMITED
(A JOINT VENTURE OF GOVERNMENT OF INDIA AND GOVERNMENT OF TAMILNADU)
TECHNO COMMERCIAL TENDER
TWO COVER SYSTEM
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER
METRO RAIL AMENITIESAT ANNA SALAI, NANDANAM,
CHENNAI, TAMIL NADU, INDIA
Cover B – Part II - Bill of Quantities
DATE OF SUBMISSION OF TENDER ON 25-06-2015 at 15.00 Hours
DATE OF OPENING OF TENDER 25-06-2015 at 15.30 Hours
TO BE SUBMITTED TO:
The Chief General Manager (EC)
Chennai Metro Rail Limited
Admin Builoding, CMRL Depot
Poonnamallee High Road
Koyambedu, Chennai - 600107
TENDER SUBMITTED BY:
M/s._________________________
Address_____________________
____________________________
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO RAIL
AMENITIES AT NANDANAM,CHENNAI
GENERAL SUMMARY
S.No
Description of Works
Amount in Rs….
Schedule - I - Civil works
Schedule - II - Plumbing and Sanitary works
Schedule - III - External Façade and Associated works
Schedule - IV - Electrical Works
Schedule - V - DG Set Works
Schedule - VI - Fire Protection System
Schedule - VII - Air -Conditioning System
Schedule - VIII - Integrated Building Management System
Schedule - IX - Lifts
Grand Total Amount in Rs……. ( I to IX )
Service tax to be quoted by the contractor in % on Total Amount
Service tax to be quoted by the contractor in Amount
Grand Total including Service Tax
Grand Total including Service Tax in words
…………………………………………………………………………………………………..………………………………………
……………………………..………………………………………………………………………………………….
Date :
Signature of the Contractor
with seal
Place :
1
Gen.Summary
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO
RAIL AMENITIES AT NANDANAM,CHENNAI
SUMMARY
S.No
Description of Works
Amount in Rs….
Schedule - A - Civil works
A
Earthwork Excavation
B
Anti-Termite Treatment
C
Plain Cement Concrete and RCC Works
D
Masonry Works
E
Joinery Works
F
Steel Work
G
Flooring Works ( Interiors )
H
Water Proofing Works
I
Finishing Works
J
Painting Works
K
Miscellaneous Works
L
Road & Pavement Works
Total Amount of Schedule - A in Rs…….
Schedule - II - Plumbing and Sanitary works
Sanitary Fixtures and CP Fittings: (Installation)
Water Supply Pipes and Fittings (Internal and External)
Soil,Waste,Vent Pipes and Fitttings (Internal & External)
Rain Water Pipes and Fittings
Pumps & Accessories
Sewage Treatment Plant
Total Amount of Schedule - II in Rs…….
Schedule - III - External Façade and Associated works
Glazing & Glazed Doors
Windows and Louvers
Cladding Works
Roofing works
Associated works for Glazing & Cladding
Total Amount of Schedule - III in Rs…….
2
Summary
Chennai Metro Rail Limited
S.No
Description of Works
Amount in Rs….
Schedule - IV - Electrical Works
Transformers and HT Breakers & LT Busducts
LT Panel Boards
Raising Mains and Tap-Off Boxes
UPS and Batteries
Distribution Boards
Isolators and Starter Panels
Wiring and Connected Accessories
Power and Control Cables / Terminations
Earthing System , Cable Tray and MS Items
Safety Equipments
Lighting Luminaires & Fans
External Works
Lighting Protection System
Solar system
Total Amount of Schedule - IV in Rs…….
Schedule - V - DG Set Works
DG works
Total Amount of Schedule - V in Rs…….
Schedule - VI - Fire Protection System
Standby Diesel Engine Pump
Hydrant System
Sprinkler System
Portable Fire Extinguishers
Transformer Sprinkler
Total Amount of Schedule - IV in Rs…….
Schedule - VII - Air -Conditioning System
Water Cooled Screw Chillers
Chilled Water and Condenser Water Pumps
Cooling Tower
Pipes and Valves
Air Handling Units
Precision Air -Conditioning (PAC) System
DX System
VRV System
Air Distribution System
Ventilation System
Electrical Works
Total Amount of Schedule - IV in Rs…….
Schedule - VIII - Integrated Building Management System
3
Summary
Chennai Metro Rail Limited
S.No
Description of Works
Amount in Rs….
Fire Alarm System
Public Address System
Access Control System
IP Based CCTV Camera
Building Management System
Automatic Fire Detection and Supression System for HT Panel , MPCCs
Miscellaneous Items
Total Amount of Schedule - IV in Rs…….
Schedule - IX - Lifts
Lifts
Total Amount of Schedule - IX in Rs…….
4
Summary
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO RAIL AMENITIES AT NANDANAM,CHENNAI
BILLS OF QUANTITIES
MAIN CIVIL WORKS
Rate in INR
S.No
Total
Quantity
A
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Earthwork Excavation
1
Earth work in excavation by mechanical means (Hydraulic excavator) / manual
means over areas (exceeding 30cm in depth. 1.5m in width as well as 10 sqm
on plan) including disposal of excavated earth, within the construction site /
campus and disposed earth to be levelled and neatly dressed.
All kinds of soil for the following lift
a
2,689.01
2
Cum Upto 1.50 m from the existing ground level
Cum
Extra for every additional lift of 1.5 m or part thereof in excavation /banking
excavated or stacked materials.
a
1,876.73
Cum Above 1.50 upto 3.00 m depth
Cum
b
1,809.67
Cum Above 3.00 upto 4.50 m depth
Cum
5
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
c
1,797.84
Cum Above 4.50 upto 6.00 m depth
Cum
d
392.51
Cum Above 6.00 upto 7.50 m depth
Cum
3
a
Filling using available excavated earth lying or stocked elsewhere inside the
campus (excluding rock) to be filled in trenches, plinth, sides of foundations,
pilecaps and the like at all heights and depths etc. in layers not exceeding 20cm
in depth, consolidating each deposited layer by ramming and watering etc
complete in all respects as directed.
29.59
4
Cum Available excavated earth
Cum
Supplying and filling in plinth with river sand under floors, including watering,
ramming, consolidating and dressing complete.
1,142.57
5
Cum River sand filling
Cum
Supplying and filling in plinth, under floors and foundation with stone dust,
including watering, ramming, consolidating and dressing etc complete in all
respects.
1,054.59
6
Amount in Rs….
In Words
Cum Stone dust
Cum
Supplying and filling in plinth, under floors and foundation with moorum
including watering, ramming, consolidating and dressing etc complete in all
respects.
6
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
3,166.97
Unit
Description of Work
Per
In Figures
Cum Moorum
Amount in Rs….
In Words
Cum
Total Amount C/o to Summary - (A ) ……..
B
Anti-Termite Treatment
Providing Pre - construction Anti - termite treatment and creating a chemical
barrier to the building by injecting chemical emulsion of required concentration
under grade slab and grade beam, all round the Pile Caps, Catch basins,
trenches, pits, tunnels, wall trenches, back fill, plinth filling, junction of wall and
floor. External perimeter of building, surrounding of pipes, expansion joints,
below U.G. sump and retaining/side walls etc. as per instructions of chemical
manufacturer as directed by the Department officer/ Architect. The treatment
shall be carried out strictly in accordance with the technical specification and
conforming to IS 6313 or equivalent BS specification. The chemical to be used
as insecticide for the treatment shall be Biflex Tc, TC stands for Termiticide
Concentrate for Termite Control (Bifenthrin) and the application shall be diluted
1 part of chemical Biflex Tc with 49 parts of water to get 0.05% emulsion and
strictly in accordance with the manufacturer’s specification.
The work should be carried out by an approved and registered specialist pest
control agency only. Tenderer to furnish the name of the proposed specialist
firm. A 10 years post application guarantee against defects shall be furnished
by the main Contractor.
Note : Horizontal plan area at ground floor level of the building will be measured
and paid.
The chemical to be used for the treatment and concentration of the chemical
solutions should be as laid down in IS - 6313 Part II.as directed by the Engineerin-charge.
7
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
a
Total
Quantity
10,629.30
Unit
Description of Work
Per
In Figures
Sqm Termite Treatment
Amount in Rs….
In Words
Sqm
Total Amount C/o to Summary - (A ) ……..
Plain Cement Concrete and RCC Works
C
8
Providing and laying in position cement concrete of specified grade excluding
the cost of centering and shuttering - All work up to plinth level :
Cum 1:3:6 (1 Cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal
size).
a
1,035.07
b
95.02
Cum 1:4:8 (1 Cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal
size).
Cum
9
184.42
Sqm Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement :3
coarse sand : 6 graded stone aggregate 20 mm nominal size) over 75mm thick
bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and
grouted with fine sand including finishing the top smooth
Sqm
10
Centering and shuttering including strutting, propping etc. and removal of
form for :
Sqm All plain / RC works for Foundations, footings, pilecaps, raft slab, bases of
columns, sides of grade slab etc. for mass concrete.
Cum
a
4,824.59
b
30,821.50
Sqm Walls (any thickness) including shear wall , retaining wall, lift wall, edges of wall
including attached pilasters, butteresses, plinth and string courses etc.
Sqm
c
25,466.47
Sqm Suspended floors, roofs, Post tensioned slab, landings, balconies and access
platform.
Sqm
8
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
d
15,904.00
Sqm Lintels, beams, plinth beams, RC binders, girders, bressumers and cantilevers.
Sqm
e
10,497.40
Sqm Columns, Pillars, Piers, Abutments, Posts and Struts.
Sqm
f
1,527.31
Sqm Stairs, (excluding landings) except spiral-staircases.
Sqm
g
293.89
Sqm Circular / curved shape Columns of any size
Sqm
h
1,754.84
Sqm Walls of any size in circular / curved shape
Sqm
i
118.35
Sqm Weather shade, Chajjas, corbels etc., including edges.
Sqm
j
5,123.66
Sqm Post tensioned beams, using water proof ply of 12 mm thick
Sqm
11
27,417.58
12
Extra for additional height in centering, shuttering where ever required with
adequate bracing, propping etc. including cost of de-shuttering and decentering
at all levels, over a height of 3.5 m, for every additional height of 1 metre or part
thereof (Plan area to be measured)
Sqm Suspended floors, roofs, landing, beams and balconies (Plan area to be
measured).
Amount in Rs….
In Words
Sqm
Steel reinforcement for R.C.C. work including straightening, cutting, bending,
placing in position and binding all complete at all level.
9
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
a
Total
Quantity
Unit
Description of Work
Per
In Figures
3,132.00 M.Ton Thermo-Mechanically Treated bars.
e
13
M.Tone
Providing ,laying , tensioning/ stressing of tendons for post tensioning works in
slabs and beams with specified Tendons at all levels including supplying and
laying of HT strands sheathing duct 80mmx20mm or 65mm dia. or 85mm dia.,
as required ,made of 0.3 mm thick GI corrugated sheeting to facilitate the
threading of HT strands,jointing with couplers, fixing of ducts into the
anchorages,decoiling the strands,cutting to the required lengths, threading of
strands into the ducts , including all necessary profiling by fixing of all
necessary tendon support bars,fixing of dead end of HT strands including
flowering the strands,fixing of grout vents, fixing of live end anchorages
including the supply of stressing anchorages (SS) suitable for 5-4, 5-5 tendons,
supervising the fabrication and fixing of anti bursting reinforcement,stressing
the cables,end trimming of cables after stressing ,grouting the annular space
around the cable in the ducts with cement slurry mixed with approved
admixtures with required tools, plants, machineries and consumables
81.86 M.Ton including providing ,cement and admixture for grouting, packing of sheathing
e
and anchorages blockings, filling of recess pockets after stressing using grouts
(cement slurry mixed with approved admixtures) including providing access to
post tensioning at all heights including all leads, lifts etc. all complete as per
particular specification and as directed by the Engineer-in-Charge but excluding
shuttering , concreting & reinforcement steel which shall be payable under
respective items separately.
14
Amount in Rs….
In Words
1,557.20
Rmt Add for plaster drip course/ groove in plastered surface or moulding to R.C.C.
projections.
10
M.Tone
Rmt
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
15
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and laying in position machine batched and machine mixed design
mix for the following grade cement concrete for reinforced cement concrete
work, using cement content as per approved design mix, including pumping of
concrete to site of laying but excluding the cost of centering, shuttering,
finishing and reinforcement, including admixtures in recommended proportions
as per IS: 9103 to accelerate, retard setting of concrete, improve workability
without impairing strength and durability as per direction of Engineer-in-charge.
M25 Grade
a
1.02
Cum All works upto plinth level
Cum
b
11.18
Cum All works above plinth level up to floor V level. (M25 Grade)
Cum
c
1.02
Cum All works above floor V level upto floor IX level (M25 Grade)
Cum
16
M30 Grade of any shape and size for pilecap, raftslab, grade beam, walls,
shear walls, retaining walls, columns, beams, slabs, ramps, staircase, steps,
landing, sills, chajjas, lintels, pergolas, fins. facia, drops and the like for the
following levels
a
877.72
b
2,108.00
Cum All works upto plinth level
Cum
Cum All works above plinth level up to floor V level. (M30 Grade)
Cum
11
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
c
1,037.48
d
333.34
e
-
17
Unit
Description of Work
Per
In Figures
Cum All works above floor V level upto floor IX level (M30 Grade)
Cum
Cum All works above floor IX level upto floor XIII level (M30 Grade)\
Cum
Cum All works above floor XIII level uoto floor XVII level (M30 Grade)
Cum
M40 Grade of any shape and size for pilecap, raftslab, grade beam, walls,
shear walls, retaining walls, columns, conventional beams and slabs, Post
tensioned slab and beams, ramps, staircase, steps, landing, and the like for
the following levels
Cum All works upto plinth level
Cum
a
14,476.65
b
6,733.09
Cum All works above plinth level up to floor V level. (M40 Grade)
Cum
c
904.46
Cum All works above floor V level upto floor IX level (M40 Grade)
Cum
18
62.87
Cum Providing and laying Plum concrete1: 5: 10 (lean mix ) ( 1 cement :5 coarse
sand : 10 aggregate of 40 mm and down size ) for extension of columns
wherever specified including sub grade preparation, leveling, all leads and lifts,
rough finishing at the top surface, curing etc complete.
Cum
12
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Total Amount C/o to Summary - (A ) ……..
D
Masonry Works
19
Providing and laying precast machine moulded cement concrete solid block in
block masonary of specified thickness with blocks of Grade M10 and laying in
position with cement mortar 1 :5 (1 cement : 5 coarse sand ) including racking,
scaffolding all complete as directed by Engineer-in-charge.
I
a
1,254.57
b
12,787.08
c
3,878.43
d
654.84
e
-
20
Block masonary of thickness 190mm with block of nominal size 400mmx
200mmx 200mm
Sqm All work upto plinth level
Sqm
Sqm Above plinth level upto floor five level (for any floor height)
Sqm
Sqm Above floor five level upto floor nine level for any height
Sqm
Sqm Above floor nine level and upto floor thirteen level
Sqm
Sqm Above floor thirteenth floor level and upto Seventeenth floor level
Sqm
Block masonary of thickness 90mm with block of nominal size 400mmx
200mmx 100mm
13
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
a
1,265.29
b
Unit
Description of Work
Per
In Figures
Sqm Above plinth level upto floor five level (for any floor height)
Sqm
852.08
Sqm Above floor five level upto floor nine level for any height
Sqm
c
180.48
Sqm Above floor nine level and upto floor thirteen level
Sqm
d
-
Sqm Above floor thirteenth level and upto floor seventeen level
Sqm
21
Amount in Rs….
In Words
Half brick masonry with common burnt clay F.P.S. (non modular) bricks of
class designation 7.5 in superstructure
cement mortar 1:4 (1 cement : 4 coarse sand)
a
110.46
Sqm
Sqm
Above plinth level up to floor V level.
b
51.29
c
7.89
Sqm Above floor five level upto floor nine level for any height
Sqm
Sqm Above floor nine level and upto floor thirteen level
Sqm
14
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
d
-
22
-
I
Unit
Description of Work
Per
In Figures
Sqm Above floor thirteenth level and upto floor seventeen level
Sqm
Extra rate over & above any type of Masonry work for providing R.C.Binder - 80
mm thick with 1:2:4 reinforced cement concrete using coarse graded aggregate
of 20 mm and downsize, reinforced with 4 nos. of 8 mm dia. Tor steel and 6
mm dia. Mild steel stirrups at 200 mm c/c and binders placed at intervals not
more than 1000 mm, including cost of reinforcements and tying in position using
binding wire made out of 16 gauge GI annealed or 18 gauge SS, form work,
scaffolding, all labour, hire and fuel charges for all tools and plants employed
and all other incidental charges etc. all complete, as directed by the Engineer-incharge.
For 200 mm thick maosnry wall
a
6,258.74
Rmt Up to Floor V level
Rmt
b
1,162.98
Rmt Above floor five level upto floor nine level for any height
Rmt
c
75.94
Rmt Above floor nine level and upto floor thirteen level
Rmt
d
-
Rmt Above floor thirteenth level and upto floor seventeen level
Rmt
II
Amount in Rs….
In Words
For 100 mm thick maosnry wall
15
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
a
1,532.55
b
Unit
Description of Work
Per
In Figures
Rmt Up to Floor V level
Rmt
822.49
Rmt Above floor five level upto floor nine level for any height
Rmt
c
605.53
Rmt Above floor nine level and upto floor thirteen level
Rmt
d
254.44
Rmt Above floor thirteenth level and upto floor seventeen level
Rmt
23
a
Amount in Rs….
In Words
For 115 mm thick Masonry wall
73.97
Rmt Up to Floor V level
Rmt
Total Amount C/o to Summary - (A ) ……..
E
24
Joinery Works
Providing and fixing in position teak wood frames of any size and section for
Doors, Windows, Ventilators, any openings and in Jambs, shaped, planed and
fixed with necessary jointing method approved including pins, nails, screws
and bolts etc. Rate shall include for cost of bolts, nuts, screws, nails, pins,
Hot dip galvanised MS approved hold fast and concrete block grouting for fixing
hold fast, anchor fasteners / coach screws and including a coat of suitable
primer on the frames and 2 coats of Duco paint finish of approved colour etc.
complete, as directed.
16
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
a
4.49
Cum Second class Teak wood frame
Cum
b
9.97
Cum Padauk wood frame
Cum
25
Amount in Rs….
In Words
Providing and fixing of 35mm thk. Teak wood panelled shutter of approved
size and shape as per drawing. All the wooden surfaces are duly with one coat
of sealer, two coats of melamine polish after sanding & filler the surface to get a
smooth finish. The shutter shall be shop prepared for taking suitable lock block
of wood may be provided for fixing the hardware, including polish. The size of
block, shall perfectly correspond to the maximum size of lock, covered in IS
2209. All the four edges of the door shutter shall be square. The shutter shall
be free from twist or warp in its plane and of required size etc.
81.27
26
Sqm The rate shall be excluding the cost of hardwares etc. which will be paid
separately in the relevant item. The door shall be factory made Finish.
Sqm
Providing and fixing hardware set of YALE or approved equivalent make
with necessary screws etc., for the below said item.
Nos Hinges - Yale -100 x 75 x 3 mm SS 304 Grade
Each
a
186.00
b
31.00
Nos
Mortise Lock Body - Yale 28P- Entrance function
Each
c
62.00
Nos
Lever Handle suiting Mortise Lock - Yale Lever on Plate
Each
17
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
d
31.00
Nos
Cylinder X Thumbturn Suiting Mortise Lock - 60 mm TT SN Regular Keys
Each
e
31.00
Nos
Door Eye - Yale V0401A
Each
f
31.00
Nos
Tower Bolt - PAG 3026- 10"
Each
g
31.00
Nos
Tower Bolt - PAG 3026- 6"
Each
h
31.00
Nos
Door Stopper - PAG 3043
Each
27
Amount in Rs….
In Words
Providing and fixing 35 mm thick flush door pre hung door set ( factory
made ) of M/s.Shree sakthi doors or approved equivalent make single leaf of
saurland german particle board with perimeter hardwood frame of size 35 x 40
all around with 3 mm thick PVC edge band to a appropriate width. The finishing
of door on both sides with 0.6mm thick decorative shade laminate over 3 mm
thick HDF/Plywood the rate also include for fixing 75 x 12 mm laminate finish
engineered hardwood architrave beading.All frames to be fixed with necessary
anchor fasteners with a 10 mm thick gripping PU foam between the masonry
and hardwood.are as per detailed drawing.
The rate shall be excluding the cost of hardwares etc. which will be paid
separately in the relevant item. The door shall be factory made Finish.
18
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
a
Total
Quantity
168.00
28
Unit
Description of Work
Per
In Figures
Nos
900 x 2100 mm
Amount in Rs….
In Words
Each
Providing and fixing hardware set of YALE or approved equivalent make
with necessary screws etc., for the below said item.
Nos Yale -100 x 75 x 3 mm SS 304 Grade - Hinges
Each
a
1,008.00
b
168.00
Nos
Yale CA5127 US32D - Cylindrical Knob Lock - Entrance Function
Each
c
168.00
Nos
Tower Bolt - PAG 3026- 10"
Each
d
168.00
Nos
Door Stopper - PAG 3043
Each
19
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
29
Total
Quantity
286.00
30
Unit
Description of Work
Per
In Figures
Sqm Providing and fixing thick 30mm thick Fully flush shutter with 1.5 mm thick
lamintate on both sides.The shutter shall be made of solid core of block board
type bonded with PF synthetic resin conforming to BWP grade of IS 848 with 6
mm thick teak wood lippingfinished with DUCO paint of approved make,
colour.The construction procedure of the shutter should be as per IS 2202. The
shutter shall be shop prepared for taking mortice lock or latches suitable lock
block of wood may be provided for fixing the hardware, including painting and
the lipping works.The size of block, shall perfectly correspond to the maximum
size of lock, covered in IS 2209. All the four edges of the door shutter shall be
square. The shutter shall be free from twist or warp in its plane and of required
size etc. complete as directed. Rate shall include for fixing all door hardwares of
like lock, hinges, handle, tower bolts, and other accesories etc..as complete
with all respects complying with relevant standard specification, as directed by
the Employer/ Employer's Representative.
Finishes shall made at Factory only installation at site.
Sqm
Providing and fixing hardware set of YALE or approved equivalent make
with necessary screws etc., for the below said item.
Nos Yale -100 x 75 x 3 mm SS 304 Grade - Hinges
Each
a
1,023.00
b
170.00
Nos
Yale CA5122 US32D - Cylindrical Knob Lock - Privacy Function
Each
c
217.00
Nos
Tower Bolt - PAG 3026- 6"
Each
20
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
31
368.84
Unit
Description of Work
Per
In Figures
Supply and fixing of UPVC Sliding window 2Track 4Panel without flyscreen
duly manufactured using uPVC reinforced profiles of 60X49X2.5 mm for outer
frames, 62x41x2.5mm for sliding shutter. The minimum wall thickness for the
external surfaces shall be 2.2 +/- 0.3mm. The windows has to be design as per
applicable wind pressure at various heights for the location of the building as
stipulated in IS codes. The window system shall be designed for water
tightness.The system must have 2 sealed chambers for frame and 1 sealed
chamber for sliding shutter, capable of mounting single/ double glazing system,
structurally reinforced with hot dip galvanized steel with 120 GSM of minimum
thickness of 1.5mm prefabricated and welded through fusion welding, the
window shall be fitted with 5mm thick toughened glass of Saint gobain / Asahi
or equivalent make duly fitted with EPDM weathering seal resistant accessories
like clipping locking system made of aluminium 1 No. per set of sashes and the
system is to be installed at site using anchor fasteners, silicion sealent, easy
glazing / deglazing at site etc..
Sqm The rate shall be include for preaparing & submitting shop drawings,
calculations etc.. and for conducting the necessary test to check for water
tightness at various heights etc.. and also inclusive of cost and conveyance of
all materials, accessories, labour charges for transportation, erection at site
complete for finished item of work, as complete with all respects complying with
relevant standard codes & specification, as directed by the Engineer-in-charge.
Windows, W1- 1800 X 1350 mm/ W2- 1500 X 1350 mm/ W3- 1200 X 1350mm
(2T 2P W/O FS type & Single Point lock). Sizes are indicative only.
21
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
32
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Kitchen Window - Supply and fixing of uPVC Sliding window 2Track 4Panel
without flyscreen duly manufactured using uPVC reinforced profiles of
60X49X2.5 mm for outer frames, 62x41x2.5mm for sliding shutter. The
minimum wall thickness for the external surfaces shall be 2.2 +/- 0.3mm. The
windows has to be design as per applicable wind pressure at various heights
for the location of the building as stipulated in IS codes. The window system
shall be designed for water tightness.The system must have 2 sealed chambers
for frame and 1 sealed chamber for sliding shutter, capable of mounting single/
double glazing system, structurally reinforced with hot dip galvanized steel with
120 GSM of minimum thickness of 1.2mm prefabricated and welded through
fusion welding, the window shall be fitted with 5mm thick toughened glass of
Saint gobain / Asahi or equivalent make duly fitted with EPDM weathering seal
resistant accessories like clipping locking system made of aluminium 1 No. per
set of sashes and the system is to be installed at site using anchor fasteners,
silicion sealent, easy glazing / deglazing at site etc..
111.13
Sqm The rate shall be include for preaparing & submitting shop drawings,
calculations etc.. and for conducting the necessary test to check for water
tightness at various heights etc.. and also inclusive of cost and conveyance of
all materials, accessories, labour charges for transportation, erection at site
complete for finished item of work, as complete with all respects complying with
relevant standard codes & specification, as directed by the Engineer-in-charge.
Kitchen Windows, KW1- 1200 X 1050 mm/ KW2- 1000 X 1050 mm (2T 2P W/O
FS type & Single Point lock). Size are indicative only.
22
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
33
70.02
Unit
Description of Work
Per
In Figures
Supply and fixing of UPVC Louver Window/ Ventilators duly manufactured
using uPVC reinforced profiles of 60X60X2.5 mm for outer frames. The system
has to be design as per applicable wind pressure at various heights for the
location of the building as stipulated in IS codes. The system shall be designed
for water tightness. The Louver/ Ventilator frame section capable of mounting
pinhead glass as per manucfacturing standard, frame structurally reinforced
with hot dip galvanized steel with 120 GSM of minimum thickness of 1.2mm
prefabricated and welded through fusion welding, the window shall be fitted with
pinhead glass of Saint gobain / Asahi or equivalent make duly fitted and the
system is to be installed at site using anchor fasteners, silicion sealent at site
etc..
Sqm
The rate shall be include for preaparing & submitting shop drawings,
calculations etc.. and for conducting the necessary test to check for water
tightness at various heights etc.. and also inclusive of cost and conveyance of
all materials, accessories, labour charges for transportation, erection at site
complete for finished item of work, as complete with all respects complying with
relevant standard codes & specification, as directed by the Engineer-in-charge.
Ventilators, V1- 750 X 750mm/ V2- 750 X 700mm/ V3- 750 X 675mm (Fixed
louvers). Size are indicative only.
23
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
34
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Sliding Doors - Supply and fixing of UPVC Sliding Door 2Track 4Panel without
flyscreen duly manufactured using uPVC reinforced profiles of 60X49X2.5 mm
for outer frames, 85x41x2.5mm for sliding shutter. The minimum wall thickness
for the external surfaces shall be 2.2 +/- 0.3mm. The system has to be design
as per applicable wind pressure at various heights for the location of the
building as stipulated in IS codes. The system shall be designed for water
tightness.The system must have 2 sealed chambers for frame and 1 sealed
chamber for sliding shutter, capable of mounting single/ double glazing system,
structurally reinforced with hot dip galvanized steel with 120 GSM of minimum
thickness of 1.2mm prefabricated (1.2mm for Sash) and welded through fusion
welding, the window shall be fitted with 5mm thick toughened glass of Saint
gobain / Asahi or equivalent make duly fitted with EPDM weathering seal
resistant accessories like clipping locking system made of aluminium 1 No. per
set of sashes and the system is to be installed at site using anchor fasteners,
silicion sealent, easy glazing / deglazing at site etc..
288.96
Sqm The rate shall be include for preaparing & submitting shop drawings,
calculations etc.. and for conducting the necessary test to check for water
tightness at various heights etc.. and also inclusive of cost and conveyance of
all materials, accessories, labour charges for transportation, erection at site
complete for finished item of work, as complete with all respects complying with
relevant standard codes & specification, as directed by the Engineer-in-charge.
Door cum Window, DW1- 3000 X 2100 mm/ DW2- 2500 X 2100 mm (2T 4P
W/O FS type & Multi Point lock). Sizes are indicative only.
Sqm
2hr. Fire rated hollow metal doors - Painted
24
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
35
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and fixing of Hollow metal fire rated doors at all levels from ISO 90012000 certified Manufacturer. Fire door should be as per IS 3614 part-1 & part-2
and BS 476 part 2 or EN 1634. Recommended fire door shall be tested and
certified by a third party evaluation program from approved international agency
like CERTIFIER and labeled. Where third party evaluation is not required fire
doors should be tested at CBRI or ARAI for maximum rating of 2hrs both with
vision panel and without vision panel. Pressed Galvanized steel Single /Double
leaf door of approved make shakti met-dor or approved equivalent which
consists of frame, shutter, infill and finish as detailed below and conforming to
IS 277.
Door frame shall be double rebate profile of size 143 x 57 mm made out of
1.60mm (16gauge) thick galvanized steel sheet. Frames shall be Mitered and
field assembled with self tabs. All provision should be mortised, drilled and
tapped for receiving appropriate hardware. Rubber door silencers should be
provided on the striking jamb. Frames should be provided with back plate
bracket and anchor fasteners for installation on a finished plastered masonry
wall opening. Once frame installed should be grouted with cement & sand slurry
necessary for fire doors on the clear masonry opening.
Door leaf shall be 46mm thick fully flush double skin door with or without vision
lite. Door leaf shall be manufactured from 1.2mm (18guage) thick galvanized
steel sheet. The internal construction of the door should be rigid reinforcement
pads for receiving appropriate hardware. The infill material shall be resin
bonded honeycomb core. All doors shall be factory prepped for receiving
appropriate hardware and provided with necessary reinforcement for hinges,
locks, and door closers. The edges should be interlocked with a bending radius
of 1.4mm. For pair of doors astragals has to be provided on the meeting stile for
both active and inactive leaf. Vision lite wherever applicable should be of size
200x300mm provided as per manufacturers recommendation with a beading
and screws from inside. The glass should be 6mm clear borosilicate fire rated
glass of relevant rating of the door.
25
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
All doors and frames shall be finished with etched primer coating, stove zinc
phosphate primer and thermosetting polyurethane aliphatic grade paint of
approved RAL colour. The door leaf and frame shall have passed minimum 250
hours of salt spray test. Rate should include supply and installation of door and
hardware size as mentioned below
a
188.57
Sqm 2Hrs Fire Rated Door Single leaf of size : 600x1500mm without vision panel
(shaft door)
Sqm
b
46.36
Sqm 2Hrs Fire Rated Door Single leaf of size : 900x2100mm with vision panel with
Self adhesive sponge seal for frames 188S
Sqm
c
67.07
Sqm 2Hrs Fire Rated Door Single leaf of size : 1000x2100mm with vision panel with
Self adhesive sponge seal for frames 188S,
Sqm
d
28.41
Sqm 2Hrs Fire Rated Door Single leaf of size : 1200x2100mm with vision panel with
Self adhesive sponge seal for frames 188S,
Sqm
e
27.82
Sqm 2Hrs Fire Rated Door Double leaf of size : 1500x2100mm with vision panel with
Self adhesive sponge seal for frames 188S.
Sqm
36
a
606.00
Supplying and fixing hardware set of GEZE or approved equivalent make
with necessary screws etc., for the below said item.
Nos GEZE GS series Two ball bearing flat button button hinge with machine Screws
Size : 102mm x76mm x3mm
Material : Stainless Steel
Finish: Satin (Code No.8011008)
26
Each
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
b
64.00
Nos
19mm dia Lever handle sprung loaded on with 8mm rose. (for steel doors)
Supplied with both wood screws and bolt through fixing.
Suitable for 40 to 50mm door thickness
Grub screw fixing onto 8mm x 100mm spindle.
longer spindle available for thicker door.
Material: Stainless Steel 304
Finish : Satin
Size: 140mm x 70mm projection from door surface. (Code No.8012136)
Each
c
80.00
Nos
GEZE GP Series 'D' type pull handle size Ø19 x 250mm single side application
includes accessories for 50mm thick door.Material : SS 304, Finsih : SSS
(Code No.8163107)
Each
d
182.00
Nos
MORTICE SHAFT LOCK with Allen Key
Each
e
57.00
Nos
GEZE Overhead rack and pinion door closer GEZE TS 2000 V
with variable closing force size 2,4 and 5 as per EN 1154,
closing speed adjustable at front, standard type of installation: door mount on
hinge side, also available with optional mounting plate (Code No.1010008)
Each
f
33.00
Nos
Geze Reversible cross bar panic latch in Silver ( single point )
includes strike plate and accessories. Suit for leaf size upto 2440mm high and
1220mm width. Finish: Silver (for steel doors) (Code no.8026366)
Each
g
64.00
Nos
GEZE GS Series, 12" flush bolt for metal door. (Code no.90817041)
Each
Total Amount C/o to Summary - (A ) ……..
F
Steel Work
27
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
37
986.20
Kg
Structural steel work in single section fixed with or without connecting plate
including cutting, hoisting, fixing in position and applying a priming coat of
approved steel primer all complete.
Kg
38
6,988.17
Kg
Structural steel work riveted, bolted or welded in built up sections, trusses and
framed work, including cutting, hoisting, fixing in position and applying a priming
coat of approved steel primer all complete:
Kg
39
32.55
40
4.00
41
3.95
Sqm Extra for providing mechanical device chain and crank operation for operating
rolling shutters.
Sqm
42
1.98
Sqm Exceeding 16.80 sqm in area.
Sqm
43
2.96
Sqm Extra for providing grilled rolling shutters manufactured out of 8 mm dia M.S.
bar instead of laths as per design approved by Engineer-in- charge, (area of
grill to be measured)
Sqm
Sqm Supplying and fixing rolling shutters of approved make, made of required size
M.S. laths, interlocked together through their entire length and jointed together
at the end by end locks, mounted on specially designed pipe shaft with
brackets, side guides and arrangements for inside and outside locking with
push and pull operation complete, including the cost of providing and fixing
necessary 27.5 cm long wire springs manufactured from high tensile steel wire
of adequate strength conforming to IS: 4454 -part 1 and M.S. top cover of
required thickness for rolling shutters.
Each Providing and fixing ball bearing for rolling shutters.
28
Amount in Rs….
In Words
Sqm
Each
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
17,704.15
Kg
45
a
Per
In Figures
44
a
Description of Work
Steel work welded in built up sections/ framed work, including cutting, hoisting,
fixing in position and applying a priming coat of approved steel primer using
structural steel etc. as required
In stringers, treads, landings etc. of stair cases, including use of chequered
plate wherever required, all complete
Amount in Rs….
In Words
Kg
Providing and fixing hand rail of approved size by welding etc. to steel ladder
railing, balcony railing, staircase railing and similar works, including applying
priming coat of approved steel primer
3,550.30
Kg
Kg
Using GI pipes
46
3,254.05
Kg
Providing and fixing stainless steel ( Grade 304) railing made of Hollow tubes,
channels, plates etc., including welding, grinding, buffing, polishing and making
curvature (wherever required) and fitting the same with necessary stainless
steel nuts and bolts complete, i/c fixing the railing with necessary accessories &
stainless steel dash fasteners, stainless steel bolts etc., of required size, on the
top of the floor or the side of waist slab with suitable arrangement as per
approval of Engineer-in-charge, (for payment purpose only weight of stainless
steel members shall be considered excluding fixing accessories such as nuts,
bolts, fasteners etc.)
Kg
Total Amount C/o to Summary - (A ) ……..
G
Flooring Works ( Interiors )
29
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
47
Total
Quantity
628.21
48
Unit
Description of Work
Per
In Figures
Sqm 52 mm thick cement concrete flooring with concrete hardener topping, under
layer 40 mm thick cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded
stone aggregate 20 mm nominal size) and top layer 12 mm thick cement
hardener consisting of mix 1:2 (1 cement hardener mix : 2 graded stone
aggregate 6 mm nominal size) by volume, hardening compound mixed @ 2 litre
per 50 kg of cement or as per manufacturer’s specifications. This includes cost
of cement slurry, but excluding the cost of nosing of steps etc. complete.
Amount in Rs….
In Words
Sqm
Providing and laying in panels not more than 20 sqm. in plan granolithic
flooring with cement concrete 1:2:4 by using coarse graded aggregate of 6 to
12 mm size laid monolithic with floor concrete and finished smooth with power
trowel including preparation of concrete surface and form work. The screed
shall be laid for effective separation of panels not exceeding 20 sqm. in plan
etc. complete as per Specifications and as directed. Unevenness in floor finish
shall not exceed +2mm in one square meter area. Rate to include lead , lift at
all levels, pumping, placing, necessary formwork, curing etc., complete
a
497.05
49
28.60
Sqm 50 mm thick
Sqm
Sqm Providing and laying self levelling epoxy of 1000 micron thick joint less floor
topping from approved make, application over the granolithic flooring as per
approved manufacturer's specification, including preparation of surface,
application, wastage, equipment, tools and plants, work at all levels etc.
complete as directed by theEmployer/Employer's Representative
Sqm
30
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
50
Total
Quantity
8,907.30
51
Unit
Description of Work
Per
In Figures
Sqm Providing,laying decorative coloured stamping for the required ordinary colours
and pattern over the concrete and with sealant on the top of Bomanite of
approved shade and colour with controlled cement concrete mix of M25 grade
to a thickness of 65 mm for side form work, expansion joint / control joint
curing, lighting, power, water laid to required slope and camber in panels
confirming to IRC standard Rate shall also include for Color hardners,
releasing Agents, stamping, men, tools & tackles etc.
Amount in Rs….
In Words
Sqm
Providing and fixing of flooring with Premium quality approved make of full
bodied vitrified floor tiles (seamless joint) confirming to IS 13006/EN 176
Group BIa with tech.specification as Mohs scratch hardness greater than
6,Water Absorption of 0.06%, Modulus of Rupture greater than 27 N/mm, Deep
Abrasion resistant less than 204 mm cube, Surface flatness, Straightness of
sides ± 0.25%, thickness ± 5% of size of approved colour and size & thick as
specified below, set in 20mm thick C.M.1:4 and pointing with approved make
epoxy grout of to matching colour shade as per Manufacturer's Specification
and as directed. Rate shall include wastages, for preparation of base surface,
cleaning, acid wash, and finished surface, protection with Gypsum / Pop layer
over Plastic sheet and removing the same before handing over,work at all
levels and as directed.Rate shall be inclusive of forming pattern as shown in
dwg and wastages etc; as complete in all respects and complying with relevant
standard specifications and as directed by the department officers/Architect.
a
3,032.55
Sqm 800mmx800mmx12mm.
Sqm
b
3,692.16
Sqm 600mmx600mmx10mm.
Sqm
52
500.77
Sqm Same as above specification but the tile shall be Matt finish, outdoor full
bodied vitrified tiles 8mm thick of 300x300 size.
Sqm
31
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
53
355.65
Sqm Providing flooring with best quality approved make Anti Skid Ceramic tiles
ranges, sizes as listed below shall 8.0mm thick set in CM 1:4, 20mm thick and
pointing the joints with Laticrete adhesive L 290 and pointing with Laticrete
make Latapoxy SP 100 of approved make as per Manufacturer's Specification
and as directed. Rate shall include for preparation of base surface, and
finishing the surface, cleaning the surface, and protecting and with Gypsum /
POP layer over Plastic sheet and removing the same before handing over,
work at all levels etc. as complete in all respects and complying with relevant
standard specifications and as directed by the Employer/Employer's
Representative. Size of tiles shall be 300mmx300mm.
Sqm
54
1,923.08
Sqm Providing and fixing of flooring with Premium quality approved make of full
bodied vitrified floor tiles (seamless joint) confirming to IS 13006/EN 176
Group BIa with tech.specification as Mohs scratch hardness greater than
6,Water Absorption of 0.06%, Modulus of Rupture greater than 27 N/mm, Deep
Abrasion resistant less than 204 mm cube, Surface flatness, Straightness of
sides ± 0.25%, thickness ± 5% of size of approved colour and size & thick as
specified, the tile shall be laid with 4mm thick spacer semi glossi / honed finish
joints are fillied with approved make Epoxy grout (office area) and tile set in
combination of Laticrete adhesive L 111 and L 73 ( cementtiious powder and
latex rubberised liquid ) or Equivalent approved make to a thick not less than
6mm (for surface contact of the bottom of the granite slab) as per approved
pattern/design using irrespective of size and shape, Rate shall include for
preparation of base surface & finishing as per manufacturer's Specification and
as directed.- 600 x 600 mm
Sqm
32
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
55
1,608.31
Unit
Description of Work
Per
In Figures
Providing flooring with best quality approved colour natural marble slab thick
18mm of size not less than 1200 x 900 mm/ 900 x 600mm, machine cut with
water ( without kerosene ), set in combination of Laticrete adhesive L 111 and L
73 ( cementtiious powder and latex rubberised liquid ) or Equivalent approved
make to a thick not less than 9mm (for surface contact of the bottom of the
granite slab) as per approved pattern/design drawing using irrespective of size
and shape, including finishing the joints with Laticrete make Unsanded
Cementitious grout L 600 series or Rate shall include for preparation of base
surface & finishing the joints with white cement slurry, cutting, edge chamfering
and polishing rough, medium, nice and acid wash and tin-oxide polish as per
manufacturer's Specification and as directed.
Sqm Rate shall include for preparation of base surface & finished the surface,
protection with gypsum/pop layer over plastic sheet and removing the same
before handing over, work at all levels and as complete in all respects and
complying with relevant standard specifications and as directed by the
Employer/Employer's Representative. The tolerance in level shall be +/-1mm.
(Basic cost Rs.850/Sqm)
Sqm
56
1,985.89
Sqm Kota stone slab flooring over 20 mm (average) thick base laid over and jointed
with grey cement slurry mixed with pigment to match the shade of the slab,
including rubbing and polishing complete with base of cement
mortar 1 : 4 (1 cement : 4 coarse sand) - 25 mm thixk
Sqm
57
731.38
Sqm Kota stone slabs 20 mm thick in risers of steps, skirting, dado and pillars laid on
12 mm (average) thick cement mortar 1:3 (1 cement: 3 coarse sand) and
jointed with grey cement slurry mixed with pigment to match the shade of the
slabs, including rubbing and polishing complete
Sqm
33
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
58
330.76
59
26.12
60
623.09
Unit
Description of Work
Per
In Figures
Sqm Providing flooring with best quality of approved colour leather finish granite
slab not less than 18 mm thick of size not less than 1200 x 900 mm/ 900 x
600, machine cut and machine high pre-polished, set in C.M 1:4, 20 mm thick
topped with white cement slurry (for surface contact of the bottom of the granite
slab) as per approved pattern/design drawing, including finishing the joints with
white cement slurry, cutting, edge chamfering and polishing rough, medium,
nice and acid wash and tin-oxide polish as per manufacturer's Specification
and as directed. Rate shall include for preparation of base surface & finished
the surface, protection with gypsum/pop layer over plastic sheet and
removing the same before handing over, work at all levels and as complete in
all respects and complying with relevant standard specifications and as directed
by the Employer/Employer's Representative The tolerance in level shall be +/1mm.
Sqm Providing and fixing flooring with cement based pressed button tile of approved
make, thick not not less than 22 mm thick of approved colour / pattern of
specified shape & size (as per drg), over a bed of CM 1:4, 20mm thick including
jointed with matching cement slurry including preparation of base surface, and
finished the surface, cleaning the surface, work at all levels etc.,as complete in
all respects and complying with relevant standard specifications and as directed
by the Employer/Employer's Representative
Sqm Providing flooring with best quality approved make White Glossy ceramic tiles
ranges, sizes as listed below shall 8.0mm thick set in CM 1:4, 20mm thick and
pointing the joints with Laticrete and pointing with Laticrete of approved make
and as directed. Rate shall include for preparation of base surface, and
finishing the surface, cleaning the surface, and protecting and with Gypsum /
POP layer over Plastic sheet and removing the same before handing over,
work at all levels etc. as complete in all respects and complying with relevant
standard specifications and as directed by theEmployer/Employer's
Representative( Over Head Tanks & U.G.Sump) Size of tiles shall be 6mm
thick of 305 x 305 mm size.
34
Amount in Rs….
In Words
Sqm
Sqm
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
61
Total
Quantity
262.92
62
359.97
63
73.97
Unit
Description of Work
Per
In Figures
Sqm Supplying and fixing 20 mm thick granite of approved colur for counter top for
wash basin laid in 20 mm thick cement mortar 1:4 over the concrete surface
and edge chamfering and providing the hole in the granite for fixing the pillar
cock tap etc., complete and as directed.
Providing and laying with best qualityof approved colur Italian marble perlato
sicilio 20mm of size not less than 1200 x 900 mm/ 900 x 600mm, machine cut
with water ( without kerosene ), set in combination of Laticrete adhesive L 111
and L 73 ( cementtiious powder and latex rubberised liquid ) or Equivalent
approved make to a thick not less than 9mm (for surface contact of the bottom
of the granite slab) as per approved pattern/design drawing using irrespective
of size and shape, including finishing the joints with Laticrete make Unsanded
Cementitious grout L 600 series or Rate shall include for preparation of base
surface & finishing the joints with white cement slurry, cutting, edge chamfering
and polishing rough, medium, nice and acid wash and tin-oxide polish as per
manufacturer's Specification and as directed.
Sqm Rate shall include for preparation of base surface & finished the surface,
protection with gypsum/pop layer over plastic sheet and removing the same
before handing over, work at all levels and as complete in all respects and
complying with relevant standard specifications and as directed by the
Engineers In-charge/Consultant. The tolerance in level shall be +/-1mm.
Sqm Providing and laying of laminated wooden flooring but in general it shall be
provided with 8mm thick HDF planks of size 194mmx1286mm with factory
tongue and groove joints, glue fixed and edges finished with necessary profiles
of skirting / reducer as per manufactures specification. Rate shall be inclusive
of providing 4mm polyethene sheets as under lay on the existing floor. The
tolerance in level shall be +/-1mm. Note: Approved make shall be Tarkett
Sommer or equivalent, as completed with all respect and complying with
relevant standard specification as directed by the Engineer-Incharge/Consultant
and as per drawing.
35
Amount in Rs….
In Words
Sqm
Sqm
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
64
65
Total
Quantity
118.35
Unit
Description of Work
Per
In Figures
Sqm Supplying and fixing Imported Vinyl flooring with roll form vinyl tile of
approved make & shade 2mm mm thick of standard sizes as per IS –3462 / BS
3261 of manufacturers specification over the existing floor. The rate shall
include all cuttings and wastages, cutting and providing tile above electrical
trunking, cost of all materials adhesives of SR-505 FEVICOL of M/s. PIDILITE
Industries Ltd., make etc, including welding of joints., complete. Only laid area
will be measured for payment. Rate quoted shall be for the complete finished
work including all the materials and labour mentioned above.
Providing, supplying & installing imported Broad loom carpet / ROLL TYPE of
approved make in the specified areas as per specifications, patterns/drawing
specified below.
Face Construction
Construction - Roll Type
Yarn- recyclable Nylon
Gauge - 1/10 to 1/12
Pile stitches per inch : 9 to 12
Pile Height Average : 5mm
Density factor Minimum 25000 to 37500 oz/cubic yard
Over All Thickness : 7 to 8 mm
Fiber System : Nylon
Dye Method - Solution dyed yarn
Soil / stain protection - suitable pretreatment required (protect)
Backing System
Backing System : Polypropylene
Product Testing
Surface Flammability
Flooring radiant panel -Class1
Electrostatic property-3.0 kv or lower
Colour fastness to light-great->_4 after 100 hours
Adhesive system
Tackifier applied to the floor meeting low VOC (Volatile Organic compound)
specifications
Installation Method
36
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
3,875.74
66
Unit
Description of Work
Per
In Figures
Adhesive applied on the floor.
Warranties
Minimum 15 year warranty with replacement against excessive wear, edge
ravel, zippering & backing reiliency loss. Warranty certificate from manufacturer
to be furnished.
Product
Size : 3.66m width
Cost
Sqm Cost to include plastic covering protection after installation, shampooing before
hand over, 2% attic stock, all handling, transportation, wastage, taxes and
duties that are applicable etc; complete.
Amount in Rs….
In Words
Sqm
False Flooring
Providing and fixing Access floor systems of Unitile® or approved
equivalent make all as per following specifications confirming to PSA MOB PF2 PS/SPU or NFPA 262 standards.
System : Access floor system to be installed shall provide a maximum finished
floor height of upto 600mm from the existing floor level. The system shall
provide for suitable pedestal and under-structure designed to withstand various
static loads and rolling loads subjected to it in an office / server / DCS / panel /
rack area. The entire Access floor system shall provide for adequate fire
resistance, acoustic barrier and air leakage resistance.
Panels : Access Floor panel of size 600x600 mm shall be all steel welded
construction, with an enclosed bottom pan of 64 hemispherical cones and top
plain sheet which are fuse welded at 124 locations to form a panel of an overall
depth of 37 mm. The inner empty core of the panel is injected with a light
weight fire retardant, non combustible cementitious compound at high pressure
to fill in all the crevices of the panel and ensures support of not less than 85%
of the top surface area of the panel. The panel after cleaning, degreasing,
phosphate by 7 tank process is coated with 40 micron epoxy coat and is heated
to achieve maximum adhesion and surface resistance. The Panels shall be UL
listed/ FM approved.
37
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
The panel is then laminated with 1.5 mm thick fire retardant floor grade
antistatic laminate/pvc on a semi -automated lamination line to ensure
maximum bonding to the steel surface. The edges of the laminated/PVC are
protected with black PVC edge trim 5mm wide on all sides. This edge trim is
mechanically locked and sealed in place to avoid detachment
Pedestals : Pedestal installed to support the panel shall be suitable to achieve
a finished floor height of 75 to 600mm. Pedestal design shall confirm speedy
assembly and removal for relocation and maintenance. Pedestal base to be
permanently secured to position on the sub floor. Pedestal assembly shall
provide for easy adjustment of leveling and accurately align panels to ensure
lateral restrain. Pedestals shall support an axial load of 2000 Kgs, without
permanent deflection and an ultimate load of 3500 Kegs. Pedestal head shall
be designed to avoid any rattle or squeaks.
Pedestal Assembly : Consisting of 100 x 100 x 2mm thick galvanized epoxy
polyester coated MS Base plate die-pressed orbitally riveted to a 21mm O.D.
2.5mm thick epoxy coated MS pipe to engage the pedestal head assembly.
The pedestal head assembly consists of an embossed steel plate having 4
holes with ¼ th tapping for fastening and locating of tile ; orbitally riveted to a
corresponding threaded stud 16mmdia. (O.D), length 100mm which is designed
to engage the pedestal base assembly. The assembly shall provide a range of
height adjustment upto 25mm, with the help of check nuts.
Understructure : Understructure system consists of stringers of size 570 x 32x
20 x 1.5mm to form a grid of 600 x 600mm. These stringers are locked into the
pedestal head and run both ways. The US system shall provide adequate
solid, rigid and quiet support for access floor panels. The US system shall
provide a minimum clear, uninterrupted height of 550 mm between the bottom
of the floor and bottom of the access floor for electrical conduiting and wiring.
38
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Stringers : Stringer system is all steel construction, rectangular channels 30 x
20 x 1.6mm thick with pre-punched counter sunk holes at both ends for
securing the stringers onto the pedestal head ensuring maximum lateral stability
in all directions. The grid formed by the pedestal and stringer assembly shall
receive the floor panel.
Panel Loading: The panel dimensions and performance must confirm with
PSA MOB - PF2 PS/SPU standards for a heavy duty panel and must comply
with the, Concentrated Point Load : 450 kgs on a 25 x 25 mm square on the
centre of the panel with a maximum permissible deflecting of not more than
2.5mm & Uniformly Distributed Load (UDL): 1250 kg/M2 with a maximum
permissible deflection of not more than 2.0mm.
Fire Rating : The Panels shall confirm to Class O & Class 1 Fire Ratings tested
as per BS 476 Part 6 & 7
Rate shall include to produce a test certificate for the above load of approved
laboratory, preparation of surface, cutting for supply/return Air Grills and for
Grommet of required size, wastages, lead & lift, grouting the system with
anchor fastener, removing all debris from the premises etc. complete, as
directed and for providing class O Armaflex Nitrile rubber of 15mm thick as
a sub floor insulation with SSR 98 adhesives to the entire area of existing
(Below false flooring) as per manufacturer's specification. Rate shall inclusive
of providing ramp/Steps in false flooring in the entry as shown in drawing.
a
335.31
Sqm The height of the jacks shall be 300 mm .
Sqm
b
335.31
Sqm The height of the jacks shall be 450 mm .
Sqm
39
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
67
2.00
68
44.38
69
a
29.59
70
823.48
71
Unit
Description of Work
Per
In Figures
Nos
Providing and fixing Unitile® or approved equivalent makes panel lifter. The
panel lifter having special two cup suction panel lifting tool, designed for heavy
duty load carrying capacities with safety lever attachment which requires
deliberate manual movement to unlock the panel.
Sqm Supplying and fixing of barrier mat of Esplanade Plus from GRADUS
MATTING. The rate inclusive of necessary edging strips/mat well frame ect, all
as per manufacture slandered specification. Size as per approved drawings.
Providing and fixing of SS Box section for edge guard to barrier mat as per
approved drawing
Rmt Size 25x25mm
Sqm Providing and laying 3mm thk self smoothing Epoxy floor topping over the
grano flooring in recreational block areas.Grinding the surfaces, cleaning the
surface thoroughly & removing laitance completely and then applying solvent
free primer on the concrete surface and seeding with fine aggregates so as to
get a good mechanical key and allow it dry and then applying and laying 3mm
thick self-smoothing epoxy topping flowshield SL or approved equivalent make
in approved colour and allow it dry. Rate shall include chipping, levelling,
applying, tool & tackles,electricity, water etc.. as directed by the EngineerIncharge/Consultant.(Guarantee shall be given by the authorized applicator for
a period of one year)
Amount in Rs….
In Words
Each
Sqm
Rmt
Sqm
Skirting Works
Providing skirting 100 mm high with full bodied vitrified floor tiles of
approved equivalent make, 7.5 / 9 mm thick set in Laticrete adhesive L290
including pointing with Latapoxy SP 100 joint filler compound of Laticrete or
approved matching shade and all as per Manufacturer's Specification. Rate
shall include for chasing of wall for flushing the tile inline with wall surface,
preparation of base surface and acid wash at all levels and as per drawing.
40
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
a
1,912.69
Rmt Vitrified tile – Matt finish.
Rmt
b
5,443.20
Rmt Vitrified tile – Polished.
Rmt
72
1,207.44
Rmt
73
1,787.92
Rmt Providing 100 mm high skirting with best quality approved colour marble slab
of thickness not less than 18 mm, machine cut and machine high prepolished set in Laticrete adhesive L 290 to a thick of 4mm uniformly and
finishing the joints with Latapoxy SP 100 of Laticrete or equivalent make, at all
levels and all as per drawing directed. Rate shall include for preparation of
surface, with tin-oxide / high gloss factory polish. Rate also to include filleting/
chamfering of the edges along with partial recessing of the skirting into masonry
/ gypsum wall
Rmt Providing 100 mm high skirting with best quality approved Kotah slab of
thickness not less than 20 mm, machine cut and machine high pre-polished
set in Laticrete adhesive L 290 to a thick of 4mm uniformly and finishing the
joints with Latapoxy SP 100 of Laticrete or equivalent make, at all levels and all
as per drawing . Rate shall include for preparation of surface, with tin-oxide /
high gloss factory polish. Rate also to include filleting/ chamfering of the edges
along with partial recessing of the skirting into masonry / gypsum wall
74
263.32
Rmt Providing 100 mm high skirting with best quality approved Jet Black granite
slab of thickness not less than 18 mm, machine cut and machine high prepolished set in Laticrete adhesive L 290 to a thick of 4mm uniformly and
finishing the joints with Latapoxy SP 100 of Laticrete or equivalent make, at all
levels and all as per drawing. Rate shall include for preparation of surface,
with tin-oxide / high gloss factory polish. Rate also to include filleting/
chamfering of the edges along with partial recessing of the skirting into masonry
/ gypsum wall(basic cost of granite Rs.150/Sq.ft)
41
Amount in Rs….
In Words
Rmt
Rmt
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
75
374.76
76
1,829.39
77
322.43
78
5,620.36
Unit
Description of Work
Per
In Figures
Rmt Providing and fixing 100 mm high skirting made from 12 mm thick BWP board
finished with 1.5mm laminate of approved shade & colour, bottom and top edge
covered with 4mm thick polished teak wood lipping as per architectural drawing
with 4 mm grooves at top enamel painted of approved colour. The ply being
grouted to the GI channel.
Rmt Providing and fixing of aluminium skirting(Gradus/ALLOY or approved
equivalent make) 100mm high and 1mm thick of aluminium profile of approved
colour fixed at wall/partition.
Dadoing works
Sqm Providing dadoing with machine cut and machine high pre-polished best quality
approved colour granite tile of thickness not less than 10mm of size
600x600mm/600x300mm, set in cement mortar 1:3, pointing the joints with
approved Tile’ joint filler grout compound matching to the granite color and as
directed. Rate shall include for preparation of base surface, such as hacking,
cleaning, wastages, smooth joint, necessary corner/edge guards of matching
color, cleaning and acid wash etc. complete and as per drawing as directed.(
Lift Lobby, Corridor )
Sqm Providing Dadoing with best quality Ceramic tile of approved make and size of
300x450mm set in cement mortar 1:3, pointing the joints with approved Tile’
joint filler grout compound as per Manufacturer's Specification and as directed.
Rate shall include for preparation of base surface, such as hacking, cleaning
and acid wash complete all as directed. Rate shall include wastages, smooth
joint, necessary corner/edge guards of matching color, cleaning and acid wash
etc. complete and as per drawing as directed. (toilets)
42
Amount in Rs….
In Words
Rmt
Rmt
Sqm
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
79
Amount in Rs….
In Words
Providing and fixing Natural Marble Cladding slab of thickness not less than
25 mm size of approved colour & shade of size not less than 900x600 /
1200x600 mm or approved size, using dry fixing method. Each marble slab is to
be individually supported using 4 Nos. of stainless steel cramps, screws & bolts
are 316 'L' grade two each at top and bottom. Each SS cramp will be of size 75
x 50 x 5 mm thickness as shown in drawing and as directed. Each SS cramp
will be fixed to the wall using two numbers of MS oxidized non-corrosive
expansion anchor fasteners of size 10 mm head, 6 mm dia. and 100 mm length
for masonry work , 10 mm head, 6 mm dia. and 50 mm length for RCC areas.
Each marble slab will have two SS cramps at the bottom with the lipping of 12
mm height embedded in the groove cut in the marble, the groove depth being
20 mm and width being 6 mm.
429.00
Sqm
Each slab will also have similar 2 cramps at the top, balance gaps in the
grooves will be filled with metal paste. There will be no gaps seen between the
marble slabs in elevation. Any corner or junction slab which may be of smaller
size should also be supported similarly. It has to be ensured that the slabs are
perfectly vertical and in plumb. The gaps between the marble slabs is to be
filled with water proof cement paste GRIPFIX (CICO, powder and liquid mix) as
per manufacturer specifications, using matching colour pigments depending on
the slabs. The gaps on the top and sides of the marble fixing will have to be
closed using coping slabs to prevent water from coming in. Rate shall include
for fabrication and fixing of SS cramps, anchor fasteners, supplying and fixing
‘M-seal’, water proofing compound, groove cutting in granite and double
scaffolding to the required heights, wastages etc; complete and all directed. for
lift lobby.
43
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
80
a
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and fixing in wall dado with best quality approved make Screen
printed ceramic tiles ranges, sizes as listed below shall 6.0mm thick with
matching borders and set in CM 1:4, 15 mm thick and pointing the joints with
Laticrete adhesive L 290 and pointing with Laticrete make Latapoxy SP 100 of
approved make as per Manufacturer's Specification and as directed. Rate
shall include for preparation of base surface, and finishing the surface, cleaning
the surface, and work at all levels etc. as complete in all respects and
complying with relevant standard specifications. Rate shall include wastages,
smooth joint, necessary corner/edge guards of matching color, cleaning and
acid wash etc. complete and as per drawing as directed by the
Employer/Employer's Representative.
262.13
Sqm Size of tiles shall be 300mmx300mm (Kitchen, utility etc..)
Sqm
FALSE CEILING WORKS
81
Providing & Fixing of Eco Perforated metal Lay in ceilings System
(Fameline/Armstrong or approved equivalent make) consisting of 600x600mm
Lay in tiles made of Aluminium Alloy 1100 with powder coated(polyester base)
to 60 microns in 0.7 mm thickness in approved colour with standard perforation
of 2.6mm dia & open area of 17% and Freudenberg Soundtex acoustical fleece
glued to the back of the tile to be laid on grid systems with 15mm wide T section flanges colour white having rotary stitching on the Main Runner, 1200
mm & 600 mm Cross Tees. The T Sections have a Galvanizing of 120 grams
per M2 & passed through 500 hrs of Salt test. The tiles should have Humidity
Resistance (RH) of 100%, NRC of 0.70, Fire Performance A2-s1.d0 in module
size of 600 X 600 mm, suitable for Green Building application, with Recycled
content of 50%.
The Tile & Grid system used together should carry a 15 year warrantee.
44
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
INSTALLATION: To comprise main runner spaced at 1200mm centers securely
fixed to the structural suffix at 1200mm maximum centre & not more than
150mm from spliced joints. The First/Last suspension system at the end of
each main runner should not be greater than 600mm from the adjacent wall.
1800mm long cross tees to be interlocked between main runners at 300mm
centre to form 1800 x 300 mm module. Cut cross tees longer than 600mm
require independent support. Perimeter trim to be wall angles, secured to walls
at 450 mm maximum centers. The rate shall be inclusive of making openings
for light fittings, grills, diffusers, cutouts, wastage and necessary hardware etc.
as complete in all respects complying with relevant standard specifications and
as directed by theEmployer/Employer's Representative(hall )
a
4,546.36
Sqm For the above specification for Grid system
Sqm
b
4,193.30
Sqm For the above specification for board (measurement only laid area)
Sqm
82
Providing and fixing in true horizontal level false ceiling of 15mm T-section
grid system Manufactured by M/s. Saint Gobain/Armstrong/USG/Daiken or
approved equivalent make using hot dipped galvanized steel section, exposed
surface chemically cleaned capping pre-finished in baked polyester paint, wall
angle of size 3000 x 19 x 19mm used in the periphery of the ceiling fixed to the
wall partition / R.C. Column / band walls with the help of screws at 600 mm
C/C. Main runner spaced at a 1200mm C/C suspended by using 2mm dia G.I.
wire hanger securely fixed to the structural soffit of RC slab by using 6mm
anchor fastener at every 1200mm (max) and 1200mm long cross tee to be
interlocked between in Main runner at 600mm C/C (max) to form a grid of 1200
x 600mm. 600mm long cross tee fixed in between 1200mm long cross tee for
forming a grid of 600 x 600mm.
45
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
a
2,647.93
b
2,647.93
83
Unit
Description of Work
Per
In Figures
Laying of FINE FISSURED (MICRO LOOK) tiles should have Humidity
Resistance (RH) of 99%, NRC 0.55, Light Reflectance >85%, Thermal
Conductivity k = 0.052- 0.057 w/m K, Colour White, Fire Performance Class 0/
Class 1 (BS476 Part 6&7) in module size of 600 X 600 X 16 mm with Bio Block
coating on the face of the tile, suitable for Green Building application, with
Recycled content of 63%. as complete in all respects complying with relevant
standard specifications and as directed by theEmployer/Employer's
Representative
Sqm For the above specification for Grid system
Sqm For the above specification for Fine fissured board (measurement only laid
area)
Amount in Rs….
In Words
Sqm
Sqm
Providing and fixing mositure resistant seamless gypsum ceiling with
Gyproc MR or approved equivalent make of 12.5 mm thick, fixed to the
underside of the suspended grid formed of GI perimeter channel of size 20 x 28
x 30 mm fixed along the wall by using wood screws and metal expansion rawl
plugs. The GI intermediate channel of size 15 x 45 x 15 x 0.90 mm shall be
fixed to the suspended strap hanger / GI ceiling angle at intervals not more than
1220 mm. The suspended GI ceiling angle /. Strap hanger is to be connected
with GI soffit cleat of size 37 x 27 x 25 x 1.6 mm and it should be fixed on the
roof slab / beam, by using metal expansion fasteners (wt. Type) of 12.5 mm dia.
to a length of 35 mm with 6 mm dia. bolt / screw at top ends.
46
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
The GI ceiling section of size 80 x 26 x 0.5 mm (MF 5) is to be provided across
the intermediate channel at intervals not more than 457 mm centres at bottom
and the same shall be fixed by GI connection clips 2.64 mm dia. at the
intersection points. The ends of ceiling section channel by adopting an overlap
length of minimum 150 mm, connected with intermediate channel shall be fixed
to perimeter channel in insertion. The gypboard shall be fixed to the under side
of the suspended grid by using 25 mm long dry wall screws. The joints shall be
finished with joint paper tape by using jointing compound of Saint Gobain
Gyproc or approved equivalent make and applying over it 3 layers of the filler
compound to provide a smooth surface. The ceiling surface shall be painted
with three coats of approved first quality acrylic emulsion over a coat of primer
etc. complete. The rate shall include making cutouts for tube lights, spot lights,
duct doors, for specified size, grills etc. for which no extra will be paid
separately.
7,421.11
Sqm Rate shall include providing additional trimming around cutouts for light fittings
etc. and grills also for providing additional supports from ceiling where main /
cross members are cut for light fittings etc. Rate shall include vertical as well as
horizontal surfaces as per detailed drawing. Actual “seen” surface of horizontal
and vertical will be measured and paid for, as complete in all respects
complying with relevant standard specifications and as directed by
theEmployer/Employer's Representative
Sqm
PARTITIONS
47
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
85
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and fixing of Partition total four layers of GYPROC FIBRE CEMENT
BOARD or approved equivalent, each layer 12mm thick (in staggered pattern)
is screw fixed with drywall screws(zinc chromium plated, self drilling ) of
25mm/35mm at 300mm centres two layers on each side of 70mm
Rondo™/Gypsteel ultra GI C-stud {0.5mm thick having one flange of 34mm
and another flange of 36mm) placed at 610mm centre to centre in 72mm
Rondo™/Gypsteel ultra GI floor Channel (0.55 mm thick have equal flanges of
32mm) which is anchored to the floor & true ceiling using anchor fasteners.
Finally square and tapered edges of the boards are to be jointed and finished
so as to have a flush look which includes filling and finishing with Jointing
compound, Joint Paper tape.
The additional supports shall be provided to the vertical stud and RCC slab
above the false ceiling at top with 'Y' type supports. Air gap between the
plasterboards is lined with 50mm rock wool of density 48 Kg/m3 of approved
make shall be placed in the cavity rock wool rapped with 40GSM fiber glass
tissue. The contractor must ensure that the wool is wire-braced to prevent it
from ‘lumping down’ over a period of time. Fixing of channels shall also to
provide suitable for attachment of fixtures to the partitions and the perimeter
opening should be trimmed with studs packed with best quality treated timber
frame to a required size and shape with 2 coats of fire proof paint over a coat
of anti-termite treatment / anti-corrosive primer to receive screws / anchor
fasteners to fix Joinery frame in position etc. as per drawing as complete in all
respects complying with relevant standard specifications and as directed by the
Employer/Employer's Representative.
a
3,249.51
b
2,248.53
Sqm Rate shall include for providing resin bonded rockwool - 50 mm ( Acoustic
Insulation Material ) .In solid partition to make it as acoustic proof.Rate also
shall be inclusive of 12mm thick BWR ply boxing for fixing Switches, sockets,
Backup box etc on the partition to a required size and shape.
Sqm Specification same as above but providing one layers of board only one side of
the stud for wall paneling/column panelings etc.,
48
Sqm
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
86
1,548.33
87
1,139.06
88
567.07
Unit
Description of Work
Per
In Figures
Sqm Providing and fixing of 1.0mm thick laminate of approved color and shade with
grooves and lines and in patterns drawing on specified area as instructed by
Engineer-Incharge/Consultant . The cost of necessary hardware's, adhesives,
wastages etc; as required for complete the works. Base cost of 1.0mm
laminate is Rs.375/1sqmt. Actual visible surfaces only will be measured and
paid.
Sqm Providing and fixing of 3.5mm thick veneer of approved color and shade with
grooves and lines and in patterns drawing on specified area as instructed by
Engineer-Incharge/Consultant, exposed surfaces of veneer shall be finished
with melamine polish of required level. The cost of necessary hardware's,
adhesives, wastages etc; as required for complete the works. Actual visible
surfaces only will be measured and paid. Basic cost of veneer Rs.900/Sqm
Finishes shall made at Factory only installation at site(portal and DH cabin)
Sqm
Sqm Providing and fixing Partition above the false ceiling level using total two layers
of GYPROC FIBRE CEMENT BOARD or approved equivalent, each layer
12mm thick (in staggered pattern) is screw fixed with drywall screws of 25mm /
35mm at 300mm centres one layers on each side of 70mm Rondo™/Gypsteel
ultra GI C-stud {0.5mm thick having one flange of 34mm and another flange of
36mm) placed at 610mm centre to centre in 72 mm Rondo™/Gypsteel Ultra GI
floor Channel (0.55 mm thick have equal flanges of 32mm) which is anchored
to the partition bottom & true ceiling using an anchor fasteners. Finally square
and tapered edges of the boards are to be jointed and finished so as to have a
flush look which includes filling and finishing with Jointing compound, Joint
Paper tape as per manufacturers specification, as complete in all respects
complying with relevant standard specifications and as directed by the
Employer/Employer's Representative.
Sqm
49
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
89
833.34
90
880.68
91
695.27
Unit
Description of Work
Per
In Figures
Sqm Providing and fixing of single layer 9mm thick calcium silicate board in the
existing aluminium/GI partitions except the cost of aluminium/GI frame work.
The joints are to be finished with jointing compound as per manufacturers
specification. The boards shall be fixed with counter sunk stainless steel / fully
threaded self tapping screws of suitable dia and length at every 300 mm c/c.
The rate shall be inclusive of necessary scaffolding, hardware etc.complete.
(above false ceiling solid partition)
Sqm Providing and fixing Straight Glazed Partition-(Type "A" partition) Slim line
partition of JEB/Alloy Make or equivalent approved make: Supply and
installation of full height straight glass partition 12mm thick toughened glass
and proprietary anodized aluminium sections of the SLIM LINE series of
40x18mm size as per drawing as directed. The sections shall be matt natural
anodized and Alloy sections combination of 40.02 , 40.03, 40.05 & 40.06 and
40.07 would be used on all four sides as per specifications and shall be
inclusive of all accessories. for FFL to the bottom of false ceiling height.
Sqm Providing and fixing Wide line Section at around Door as per drawing,
JEB/ALLOY Make or equivalent approved make at three sides of door opening :
Supply and installation of wide line door frames using Alloy sections
combination 100.02 , 100.03, 100.05 & 100.06 and 100.07 would be used at
sides and top etc. as per specifications and shall be inclusive of all
accessories.. The section shall be matt natural anodized as per manufacturer's
specification. The rate shall be inclusive of necessary additional plate provision
for fixing of card reader and access control switch etc.
50
Amount in Rs….
In Words
Sqm
Sqm
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
92
Unit
Description of Work
Per
In Figures
a
138.07
Supplying and fixing Fully openable Patch Fitting partition and door of '
DORMA' "PT" range Fittings to get a clear height with top & Side Fixed panels
as per drawing as directed. In general, the openable door cum Fixed panel
consists of sliding channel with all fitting and Corner Fittings PT90/91, Standard
Spindle US10, corner lock at bottom and US20 with GK50, Euro profile cylinder
with 4keys, lock keeper plate, Pull handle(TGDI35025) SS Satin Finish and
12mm thick clear toughened glass as per design and all confirming to
manufacturers specification. SS fixtures shall conform Grade SS 304 to BS
7352.
Rate shall include for providing Glass Fin to support the Patch Fitting Door,
transport charges, handling, loading and unloading, Installation, protecting the
module and glass till handing over, testing, commissioning all necessary
hardware's, Structural supports if any, etc. complete and all as per
manufacturers specifications as directed.
Sqm Rate for partition only
b
335.31
Sqm Rate for single/double leaf doors only.
Sqm
93
991.13
Rmt Glass Etching:
Fixing to glass panels using 3M film stickers as per required pattern drawing
and shape and as directed by the Engineer-Incharge/Consultant.
Rmt
51
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
94
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and fixing of 2hr fire rated partition total four layers of GYPROC
FIRELINE BOARD or approved equivalent, each layer 15mm thick (in
staggered pattern) is screw fixed with drywall screws of 25mm/35mm at 300mm
centres two layers on each side of 70mm Gypsteel Ultra / Rondo™ GI C-stud
{0.50mm thick having one flange of 33.5mm and another flange of 35mm)
placed at 610mm centre to centre in 72mm Gypsteel Ultra / Rondo™ GI floor
Channel (0.55 mm thick have equal flanges of 32mm) which is anchored to the
floor & true ceiling using M6 x 40 anchor fasteners. Finally square and tapered
edges of the boards are to be jointed and finished so as to have a flush look
which includes filling and finishing with Jointing compound, Joint Paper tape.
The additional supports shall be provided to the vertical stud and RCC slab
above the false ceiling at top with 'Y' type supports. Air gap between the
plasterboards is lined with 50mm rock wool of density 64 Kg/m3 of approved
make shall be placed in the cavity rock wool rapped with 40GSM fiber glass
tissue. The contractor must ensure that the wool is wire-braced to prevent it
from ‘lumping down’ over a period of time. Fixing of channels shall also to
provide suitable for attachment of fixtures to the partitions and the perimeter
opening should be trimmed with studs packed with best quality treated timber
frame to a required size and shape with 2 coats of fire proof paint over a coat
of anti-termite treatment / anti-corrosive primer to receive screws / anchor
fasteners to fix Joinery frame in position etc. complete as per drawing as
complete in all respects complying with relevant standard specifications and as
directed by the Employer/Employer's Representative.
Rate shall be inclusive of 12mm thick BWR ply boxing for fixing Switches,
sockets, Backup box etc on the partition to a required size and shape.(all lab
partition)
52
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
95
a
49.31
b
9.87
Unit
Description of Work
Per
In Figures
Providing and fixing of fully glazed steel fire rated partition and door with
120 minutes of integrity (E=120) fabricated with 1.6 mm thick galvanized steel
sheet. The door frames are manufactured from 1.6 mm galvanized steel sheet
pressed to form a profile of 35 mm x 60 mm on
the vertical sides and 50 x 60 mm on the horizontal side. The door shutter
would have a top rail and side rail 60 mm x 60 mm and a bottom
rail of 110 mm x 60 mm. The overall door opening is 1800 mm x 2100+fixed
1800x1700mm. The test is conducted in CBRI, Roorkee as per BS 476 Part 22.
The glass should be SGGCFDL 11mm clear 120 min rated ( E120) Non Wired
Toughened glass with a light transmission of 89% and a sound reduction of 32
db. The glass should be class 1C1 category of Impact Resistance as per EN
12600. The glass should be held in its place with the help of 2 mm GI beading
and a special ceramic tape with cross section of 5 x 20 mm..
The shutters should be fixed to the frame using 4nos of Dorma SS Ball Bearing
Hinges of size 100 mm x 75 mm and 3 mm thickness. Beading should be
attached using 4 mm x 35 mm SS screws at a distance of 75 mm from the
edges and 150 mm c/c henceforth. The door should be fitted with Dorma
Mortise Sash lock 952F and door closer TS 68 of Dorma make or equivalent.
The inactive leaf should be fixed to the frame using 1200mm long Dorma tower
bolt no 9114306 or equivalent. (SAINT GOBAIN 11mm CONTRA FLAME or
approved equivalent make)
Sqm For partition only(UPS and server)
Sqm
Sqm For single/double leaf doors only(lobby)
Sqm
53
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
96
601.58
Unit
Description of Work
Per
In Figures
GUIDE SPECIFICATIONS FOR OPTRA ACOUSTICAL WALL PANELLING:
Providing and supplying Armstrong ‘Optra Acoustical Wall Panelling’ or
approved equivalent make with square edges made of fibre glass substrate
25mm thick and wrapped on the front side with an acoustically transparent and
fire-resistant fabric with an option of colours as per the choice of the
Employer/Employer's Representative of size 2100x600 or 600x600 mm
providing a minimum sound absorption level of 0.90 NRC to be affixed to wall
using Wall panel impalers supplied by M/s Armstrong Industries India Pvt. Ltd
and construction adhesives as per the instructions laid down by the
manufacturer.
Sqm INSTALLATION:
Armstrong or approved equivalent wall panel impalers of adequate quantity as
specified by the manufacturer shall be fixed to the wall surface using self
tapping screws. Silica based construction adhesive shall be dabbed on to the
projecting elements (spikes) of the impalers. Armstrong Optra wall panels shall
be pierced through the spikes of the impalers ensuring the line and level of the
panels are maintained. The rate shall be inclusive of wastage, hardware and
necessary backings etc.
54
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
97
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
GUIDE SPECIFICATIONS FOR ARMSTRONG OR APPROVED EQUIVALENT
MAKE CHANNELED WOODWORKS WALL PANELLING OF SIZE:
128X2440X16MM
Providing and Fixing Armstrong Channeled Woodworks perforated panels of
width 128mm, thickness of 16mm and length 2440 mm or as required by the
Employer/Employer's Representative, made of a high density particle board
substrate with a laminated facing as per the approved shade/ species & finish
and a melamine balancing layer on the reverse side. The boards shall have a
special perforation pattern where the visible surface has a (“Helmholtz” fluted
perforation of 2mm width and 14mm of visible panel / 4mm width and 28mm
visible panel) each. The panels shall provide a minimum sag resistance of
RH90 and a fire rating class of 1 as per Part 7 of BS 476. The edges of the
panels shall be “tongue-and-grooved” to receive special clips for installation.
The back of the perforated panel shall have sound absorbing non-woven
acoustical fleece. The panels shall be mounted on special aluminium splines
using clips provided by Armstrong or approved equivalent make and approved
by the Employer/Employer's Representative.
147.93
Sqm INSTALLATION:
Install wooden battens (provided by others) of section 50mmx50mm or as
approved by the Employer/Employer's Representative on the solid wall
horizontally using screws and plugs at spacing of 600mm centre-to-centre.
Screw the aluminium extruded keel for channelled woodworks (GTPT001) over
the lowest and second wooden batten at an on-center distance of 600mm.
Install the first set of wooden panels by inserting the clips for border channelled
woodworks (GTPT002) and insert the groove of the panel into the projecting
flange of the aluminium clip. Continue installing rows of panels by inserting the
tongue into the groove of the earlier inserted panel and progressively installing
clips for inside channelled woodworks (GTPT003) into the next keel till the
actual height is achieved. Use clips for border channelled woodworks
(GTPT002) to finish off the installation. Finish off the edges using wooden
moulding of matching colour. The rate shall be inclusive of wastage, hardware
and necessary backing etc.
55
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Total Amount C/o to Summary - (A ) ……..
H
Water Proofing Works
PILE CAP OVER PCC
Providing and laying integral cement based treatment for water proofing on top
of PCC laid for Pile Cap and lift pit, raft slab, UG Sump, STP in the following
order and consisting of following operations. :
98
Providing plastering over the PCC with CM 1 : 3 - 12 mm thick admixed with
CICO No. 1 @ 2% by weight of cement
Application 2 coats of TAPECRETE Acrylic Polymer Modified Cementitious
Coating over plastered surface
9,924.66
99
Sqm Providing plastering over treated area with CM 1 : 3 - 12 mm thick admixed with
CICO No. 1 at 2 % by weight of cement
Sqm
Providing and Fixing 18 mm dia GI nozzles on pile cap, lift pits, raft slab, UG
sump, STP consisting of following operations
56
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and Fixing 18 mm dia GI nozzles (the nozzle shall be embedded
about half the depth of the member to be grouted) in grid pattern at a spacing
not more than 1.0 metre c/c while casting the raft slab and along construction
joints at a spacing not more than 1.0 metre c/c along the construction joints.
Nozzles can also be post fixed by drilling holes using drill machine and to be
fixed with cement putty admixed with quick setting integral Waterproofing
compound CICO NO.3 or approved equivalent in the ratio 1:1by weight .The
Caps shall be fixed in the mouth of the nozzles to avoid chocking of cement
slurry etc, while concreting or Post fixing the Nozzle. (Nothing extra shall be
paid for post fixing)
Applying injection grouting through the nozzles grouting pumps with a minimum
pressure of 2 kg/sqcm with cement slurry admixed with CICO Non shrink
Polymeric Water Proof Grouting Compound or approved equivalent at the rate
of 2% by weight of cement .Grouting operations to be taken up after the raft /
slab concrete reached the full strength, i.e. 28 days after casting of concrete.
11,054.84
Sealing off the nozzles after grouting operation is over with cement putty
admixed with quick setting integral Waterproofing compound CICO NO.3 or
approved equivalent in the ratio 1:1by weight.
Cut the projected nozzles if required over the concrete surface and fill with
cement putty admixed with quick setting integral Waterproofing compound
CICO NO.3 or approved equivalent in the ratio 1:1by weight.
Application of two coats of TAPECRETE Acrylic Polymer Cementitious Coating
over well prepared surface
Providing concrete screed with CC 1 : 2 : 4 at an average thickness of 40 mm
admixed with CICO No. 1 @ 2 % by weight of cement
Sqm Note- The area of the foundation to be treated shall be measured correct to a
cm and its area for payment shall be calculated in square metres correct to two
places of decimal. The rate includes preparation of surface, treatment and
sealing of all joints, corners, junctions of pipes and masonry with polymer mixed
slurry all complete as per direction of Engineer in charge.
57
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
100
7,003.95
101
Unit
Description of Work
Per
In Figures
Providing and laying water proofing treatment on the external surfaces of
pile cap, retaining walls of basement, Lift pit side walls, sump, OHT in the
following sequences.
Making ' V ' grooves at the construction joints of size 20 x 20 mm and clean the
surface with wire brush .
Application 2 coats of TAPECRETE Acrylic Polymer Modified Cementitious
Coating over well prepared surface
Sqm Providing plastering over treat ed area with CM 1 : 3 - 12 mm thick admixed
with CICO No.1 at 2 % by weight of cement
Amount in Rs….
In Words
Sqm
Providing and applying injection grouting on internal surfaces of Basement
Retaining walls, Lift pit side walls, OHT and STP using cement admixed with
water proofing compound in the following order and as directed by
Engineer–in–Charge :
Making ' V ' grooves at the construction joints of size 20 x 20 mm and clean the
surface with wire brush .
Providing and Fixing 18 mm dia GI nozzles (the nozzle shall be embedded
about half the depth of the member to be grouted) in grid pattern at a spacing
not more than 1m c/c while casting the retaining wall and along construction
joints at a spacing not more than 1m c/c . Nozzles (can also) shall be post fixed
by drilling holes using drill machine and to be fixed with cement putty admixed
with quick setting integral Waterproofing compound CICO NO.3 or approved
equivalent in the ratio 1:1by weight .The Caps shall be fixed in the mouth of the
nozzles to avoid chocking of cement slurry etc, while concreting or Post fixing
the Nozzle. (Nothing extra shall be paid if nozzles are post fixed)
pplying injection grouting through the nozzles by hand operated grouting pumps
with a minimum pressure of 2 kg/sqcm with cement slurry admixed with CICO
Non shrink Polymeric Water Proof Grouting Compound or approved equivalent
at the rate of 2% by weight of cement .Grouting operations to be taken up after
the concrete reached the full strength, i.e 28 days after casting of concrete.
58
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
9,929.99
102
627.22
103
Unit
Description of Work
Per
In Figures
Sealing off the nozzles after grouting operation is over with cement putty
admixed with quick setting integral Waterproofing compound CICO NO.3 or
approved equivalent in the ratio 1:1by weight.
Cut the projected nozzles if required over the concrete surface and fill with
cement putty admixed with quick setting integral Waterproofing compound
CICO NO.3 or approved equivalent in the ratio 1:1by weight.
Application of two coats of TAPECRETE Acrylic Polymer Cementitious Coating
over well prepared surface
Providing Plastering over treated area with CM 1 : 3 - 20 mm thick admixed with
CICO No. 1 @ 2 % by weight of cement
Sqm Note- The area of the RCC to be treated shall be measured correct to a cm
and its area for payment shall be calculated in square metres correct to two
places of decimal
BALCONY AREA WATERPROOFING (WITH BRICK BAT COBA) :GENERAL:1. Preparation of surface on Plain cement concrete by mechanical upgrading to
remove all loose mortar, laitance, oil, grease and wash the surface by using fine
dressed tools and tackles.
Application of two coats of TAPECRETE - RTU Polymer Based Elastomeric
Coating over well prepared surface
Sqm Providing plastering over treated area with CM 1 : 3 - 20 mm thick admixed with
CICO No. 1 @ 2 % by weight of cement
Amount in Rs….
In Words
Sqm
Sqm
TOILET SUNKEN AREA WATERPROOFING
Treatment to bottom and sides of toilet sunken slab covering the following
sequence of operations :
59
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
104
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
a). Providing, supplying, mixing, laying cement plaster 12 mm thick with cement
sand mortar 1:3 mixed with approved water proofing compound like CICO No.1
or approved equivalent conforming to IS 2645 at the rate specified by the
manufacturer over coated surface of operation (a) above including preparation
of surface, dewatering, finishing, curing,
etc. all complete as per
manufacturer's specifications and as directed.
b) Providing, supplying, mixing, applying two coats of TAPECRETE Acrylic
Polymer Modified Cementitious Coating, flexible water proofing to a thickness
of 2 mm over the surface of bottom and sides of toilet sunken slab including
preparation of surface, finishing, curing etc. all complete at all levels as per
manufacturer's specifications and as directed.
c) Final coat of plaster as per operation (a) above over the coated surface
of operation (b) above all complete as directed.
Treatment to top of brick jelly concrete / BRICK - BAT COBA in sunken
slab covering the following sequence of operations :
a) Providing, supplying, mixing, laying cement plaster 12 mm thick with cement
mortar 1:3 mixed with approved water proofing compound like CICO NO:1 or
approved equivalent conforming to IS 2645 at the rate specified by the
manufacturer over BRICKBAT COBA Elevations and heights including
preparation of surfaces, finishing, curing etc. all complete as per manufacturer’s
specification and as directed.
b) Providing, supplying, mixing, applying 2 coats of TAPECRETE Acrylic
Polymer Modified Cementitious Coating, flexible, water proofing to a thickness
of 2 mm over the plastered surface of operation (a) above including
preparation of surface, dewatering, finishing, curing etc. all complete as per
manufacturer's specification and as directed.
c) Final coat of plaster as per operation (a) above over the coated surface of
operation (b) above to receive floor finish all complete as directed.
60
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
1,170.62
105
Unit
Description of Work
Per
In Figures
Sqm NOTE: Specialized agency to be approved by Engineer in Charge. PRINCIPAL
MANUFACTURER SHALL GIVE GUARANTEE FOR STIPULATED TIME FOR
THE WATERPROOFING WORKS DONE AT SITE. All surfaces to be
waterproofed should be sound, clean and dry. Concrete surfaces should have a
light steel-trowel followed by a fine hair-broom or equivalent finish, which is dry
and free of dust, oil and other contaminants. All high spots should be removed.
Moss and lichen must be removed physically followed by treatment with
fungicidal wash to kill any spores and inhibit further growth. After treatment
wash down thoroughly with clean water and allow to dry. Grouting periphery of
spout pipes with water insensitive epoxy, pressure grouting of construction
joints and honey comb areas with cement grout, proper preparation of the
concrete surface by mechanical means/hydro blasting to ensure a good bond
between the topping and the substrate,Testing of the surfaces prior to start the
work,after completion and after a period of one month after completion by
ponding,grouting or sealing of joints,making vatta at corners/junctions etc are
deemed to be included for all items while quoting rates Contractor shall give
both material and preformance guarantee in the approved format.
Amount in Rs….
In Words
Sqm
TERRACE WATERPROOFING WITH OVERDECK INSULATION :GENERAL:1. Preparation of surface on Plain cement concrete by mechanical upgrading to
remove all loose mortar, laitance, oil, grease and wash the surface by using fine
dressed tools and tackles.
Application of two coats of TAPECRETE - RTU Polymer Based Elastomeric
Coating over well prepared surface
Providing plastering over treated area with CM 1 : 3 - 20 mm thick admixed with
CICO No. 1 @ 2 % by weight of cement
Providing and laying brick bat coba over a bed mortar with CM 1 : 4 - 20 mm
thick and the gaps between the brick bats shall be filled with CM 1 : 3 and the
top surface shall be finished with CM 1 : 4 - 20 mm thick and draw a false line
of 300 mm x 300 mm. All CM shall be mixed with CICO No. 1 @ 2 % by weight
of cement
61
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and laying XPS Board - 50 mm / 75 mm over a brick bat coba laid
area
Providing and laying Fibre Glass Cloth over XPS Board
Providing and laying 50 mm thick M25 grade concrete precast tile using 20mm
and down graded granite aggregates over fibre glass cloth laid area
The whole terrace so finished shall be flooded with water for a minimum period
of two weeks for curing and for final test. Rectification of leakage if any and
conducting the test again to ensure there is no leakage after rectification.
106
5,096.65
Sqm The all above sequences should be executed as per the manufacturer's
specifications prior to the approval of PMC / Architect.
Sqm
600.40
Cum Providing and laying Brickbat Coba with Cement Mortar mixed in1:2:4(1
cement : 2 sand : 4 brick bats) using 40 - 60 mm size brickbats incl.mixing of
"CICO NO. 1 waterproofing compound @ 2% by weight of cement in toilet sunk
portions / terraces with necessary slope towards nahani trap/ rain water pipe,
finishing the surface, curing,ponding / flooding the area for a minimum period of
72 Hrs, etc complete as directed.
Cum
Total Amount C/o to Summary - (A ) ……..
I
107
Finishing Works
45,582.06
Sqm Plastering for internal surfaces with 12 mm thick in Cement Mortar 1:6 (1
cement : 6 six sand ) and as directed. Rate shall include for necessary
hacking, staging, scafolding and curing at all levels and elevations as directed
by the Engineer-in-charge..
62
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
108
Total
Quantity
7,694.29
109
Unit
Description of Work
Per
In Figures
Sqm Plastering for external surfaces with18 mm cement plaster in two coats under
layer 12 mm thick cement plaster 1:5 (1 cement: 5 coarse sand) and a top layer
6 mm thick cement plaster 1:3 (1 cement : 3 coarse sand) finished rough with
sponge. Rate shall include for necessary hacking, staging, scafolding and
curing to the height of 10m from the ground level as directed by the Engineer-incharge..
Sqm
a
1,162.73
Extra for plastering exterior walls of height more than 10 m from ground level
for every additional height of 3 m or part thereof.
Sqm 10m to 13m lvl
b
1,236.69
Sqm 13m to 16m lvl
Sqm
c
1,028.60
Sqm 16m to 19m lvl
Sqm
d
599.61
Sqm 19m to 22m lvl
Sqm
e
508.88
Sqm 22m to 25m lvl
Sqm
f
508.88
Sqm 25m to 28m lvl
Sqm
63
Amount in Rs….
In Words
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
g
508.88
Sqm 28m to 31m lvl
Sqm
h
424.07
Sqm 31m to 34m lvl
Sqm
i
177.52
Sqm 34m to 37m lvl
Sqm
j
-
Sqm 37m to 40m lvl
Sqm
k
-
Sqm 40m to 43m lvl
Sqm
l
-
Sqm 43m to 46m lvl
Sqm
m
-
Sqm 46m to 49m lvl
Sqm
Sqm Plastering to R.C walls, slabs, peripheral beams and columns with Cement
Mortar 1:3,(1cement : 3 fine sand) 6 mm thick according to the specification.
Rate shall include for necessary hacking, staging, scafolding and curing at all
levels and elevations etc.complete as directed. and as directed by the Engineerincharge.
Sqm
110
52,796.85
64
Amount in Rs….
In Words
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Total Amount C/o to Summary - (A ) ……..
J
Painting Works
111
28,115.39
Sqm Providing Acrylic emulsion paint - Painting with acrylic emulsion paint of Low
VOC paint ( complying with all green rating systems) and of approved make
and colour or equivalent make two or more coats as per manufacturers
specifications and as directed. The rate shall be inclusive of necessary
scaffolding or staging etc.as complete with all respects complying with relevant
standard specification, as directed by the Engineer-Incharge/Consultant
Sqm
112
7,140.04
Sqm Providing & applying POP punning plaster 2 mm thick over exposed wall
surface including scaffolding etc. complete. Rate to include for making the wall
with plumb line and get smooth surface to receive the paint.( all plaster surface)
and also include cost of material, labour, unloading and shifting of
material,water etc..as complete and as directed by EngineerIncharge/Consultant.
Sqm
113
49.31
Sqm Providing two coats of Enamel paint to wooden / M.S grill of approved colour
over a coat primer including preparation of surface by through cleaning as per
manufacture's specification fully to give an even shade.
Sqm
114
14,945.76
Sqm Supplying and applying "RENOVA" Synthetic plaster over the prepared external
plastered surface at three coats of approved colour shade & pattern . The first
coat of application to be done with Renova ASP by trowel. The second coat
with brush and the final coat should also be applied with brush. The rate shall
include for carrying out work at all levels as per manufacture specification and
all necessary surface preparation, tools, scaffolding, water, electricity,taxes
etc..as complete with all respects complying with relevant standard
specification, as directed
Sqm
65
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
115
Total
Quantity
4,759.37
116
a
b
-
3,784.03
Unit
Description of Work
Per
In Figures
Sqm Applying white washing three coats to ceilings and walls with pure shell lime or
fat lime conforming to IS-712 all as per Specification and as directed.
complying with relevant standard specification, as directed.
Amount in Rs….
In Words
Sqm
Preparing the surface, making and fixing of POP cornice at the junction of wall
and ceiling. The rate shall be inclusive wastage, mould, scaffolding, cleaning
the surface etc. size as mentioned below
Rmt size diagonally 150mm
Rmt
Rmt size diagonally 200mm
Rmt
Total Amount C/o to Summary - (A ) ……..
K
117
Miscellaneous Works
587.78
Sqm Providing, supplying and spraying/spreading the Fire sealing in shaft chequered
plate for pipe outlets, trays, cables, openings of required dia outlets using
penetration seals of approved make including necessary mechanical
equipments, tools and tackles etc complete.The rate should include cotton
pads, sealing of joints using self sealing, non shrink cement penetration seals /
grouts of approved makes either single or double component with necessary
formwork, staging, tools, etc., complete with minimum of 30 mm depth for two
hours fire rating.Hilti or Promat or Equivalent make or approved by the Engineerin-charge/consultant
66
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
118
Making Core Cutting in slabs / beams / retaining walls and any other R.C
members to any dia & depth by using 'HILTI' or equivalent make diamond
drilling machine with tolerance for any type of inserts, anchor fasteners etc.
Rate shall include for all charge, preparation of surface, cutting of
reinforcement, cleaning the surface, staging, scaffolding application of
necessary chemical / foil (HAV) as per manufactures specification with
necessary tools and equipments water and power, removal of debris from the
site, staging scaffolding etc complete, as directed by the Engineer-in-charge.
119
75 to 100 mm dia to the following depth:
a
9.00
Nos
150 mm Depth
Nos
b
9.00
Nos
200 mm Depth
Nos
c
9.00
Nos
250 mm Depth
Nos
d
9.00
Nos
300 mm Depth
Nos
120
Amount in Rs….
In Words
100 to 150 mm dia to the following depth:
67
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
a
9.00
Nos
150 mm Depth
Nos
b
9.00
Nos
200 mm Depth
Nos
c
9.00
Nos
250 mm Depth
Nos
d
9.00
Nos
300 mm Depth
Nos
121
Amount in Rs….
In Words
150 to 225 mm dia to the following depth:
a
9.00
Nos
150 mm Depth
Nos
b
9.00
Nos
200 mm Depth
Nos
c
9.00
Nos
250 mm Depth
Nos
d
9.00
Nos
300 mm Depth
Nos
68
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
122
Amount in Rs….
In Words
225 to 300 mm dia to the following depth:
a
9.00
Nos
150 mm Depth
Nos
b
9.00
Nos
200 mm Depth
Nos
c
9.00
Nos
250 mm Depth
Nos
d
9.00
Nos
300 mm Depth
Nos
123
300 to 450 mm dia to the following depth:
a
9.00
Nos
150 mm Depth
Nos
b
9.00
Nos
200 mm Depth
Nos
c
9.00
Nos
250 mm Depth
Nos
69
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
d
Total
Quantity
9.00
Unit
Description of Work
Per
In Figures
Nos
300 mm Depth
Amount in Rs….
In Words
Nos
124
460.00
No's Supplying and fixing poly-propelene rungs of 25 mm square bar of size 260 x
170 mm for access way including anchorage in walls to a minimum depth of
100 mm with C.C 1:2:4 (one cement,two fine aggregate and four coarse
aggregate) etc. complete and as directed by the Engineer-in-charge.( Duct
,Shafts & UG sump,Over Head Tank and wherever necessary)
Note: Rungs to be fixed before concreting and necessary provision to be made
in the shuttering.etc complete, as directed by the Engineer-in-charge.
No's
125
9.87
Cum Providing and laying of light weight concrete fill on structural slab using
Hemalite/Vermiculite cement based composition having physical elasticity ,
chemical inertness, firm adhesion, fire resistance with thermal / acoustic
insulation properties, anti-corrosion, anti-condensation, etc in the required
proportion to get the desired density, mixing, transportation, placing,
compacting and finishing to the required level with necessary side supports,
equipments and its density is 600kg/cum wherever necessary areas to be fill as
directed by the Engineer-in-charge.etc as complete with all respects complying
with relevant standarad specification as directed by the Engineer-in-charge.
Cum
126
9.00
No's Supplying and fixing 40mm dia. and 150mm or more long G.I. pipe spouts in
sun shades including painting two coats of first quality synthetic enamel paint
of approved make and tint over one coat of primer as complete in all respects
complying with relevant standard specification and as directed by the Engineerin-charge.
No's
70
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Amount in Rs….
In Words
Supplying and fixing Ductile Iron manhole cover and frame as per approved
make ,cover weight and being size mentioned below and specified size in the
drawing etc., including painting with two coats of anticorrosive paint over a coat
of primer etc., fixing locking arrangements, fixing Man-hole over, grouting the
anchors with CC 1:2:4 (one cement,two fine aggregate and four coarse
aggregate), as complete in all respects complying with relevant standard
specifications and as directed by the Engineer-in-charge.
79.00
No's 600X600 mm Medium duty DI manhole cover not less than 65kgs
128
No's
Providing and laying in position the RCC humepipes (NP2) of approved
quality and make including collars,. necessary Excavation, PCC 1:2:4 supports,
Sand cushion of 150mm on all sides, Refilling with earth, Compaction and
making good the level, alignment etc.,complete as directed by the Engineer-incharge.
394.48
RMT 300 mm dia
129
a
Per
In Figures
127
a
Description of Work
RMT
Providing, Fabricating and fixing puddle flanges made of GI 'c' class pipe with
6mm thick MS plate alround 50 mm fixed to sump and water tank etc. all
complete as directed by the Engineer-in-Charge.
59.00
Nos
50mm dia - 1000mm long
Each
71
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
b
39.00
Nos
80mm dia - 1000mm long
Each
c
47.00
Nos
100mm dia - 1000mm long
Each
130
a
Amount in Rs….
In Words
Providing and fixing in position single component, self sealing water swelling
bars made up of flexible polymer composites at construction joints of retaining
walls and water retaining structures and wherever specified with proper
overlaps at joints of approved makes as per consultants approval.
9.86
b
Rmt Syncoflex make (Vertical joints)
Rmt
Masterflex 610 of MBT make
i
14.79
Rmt 20mm x 20mm
Rmt
ii
14.79
Rmt 10mm x10mm (Horizontal joints)
Rmt
72
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
131
49.00
132
18,540.44
133
299.81
134
Unit
Description of Work
Per
In Figures
Each Providing of rain water collection well chamber of 1.20m inner dia to a clear
depth of 3.0m including necessary earth work excavation, providing PCC 1:4:8
for the circular wall to 100mm thick levelling course, and the wall should be
constructed with Brickwork in C.M.1:5 in step foundation to a varying height and
thickness, providing necessary extra heavy duty RC precast cover slab of size
150mm thick. The well shall be filled with brickbats upto existing average
ground level and making provision for PVC pipe in/outlet pipe making the
connection etc. complete as per approved drawing and as directed by the
Engineer-in-charge.
kg Providing and fixing Heavy duty grating for trenches, drains and water
collection sump etc., of various size od opening in drain trenches made out of
galvanized steel and all as per manufacture's specification of M/s Indiana / M/s.
Nico or approved equivalent gratings including necessary supports, suitable
angle iron frames, grouting the supports using C.C 1:2:4 and finishing the
surface neatly, welding the angle / Flat with consumables, Painting iron frame
with 2 coats of Synthetic Enamel paint over a coat of Zinc phosphate primer
etc. complete and all as directed. Note : Clear opening will be measured and
paid for.
Rmt Providing and fixing of 50mmx50mm size Column Corner Guard (DURAL or
equivalent make), for vertical corner's of RCC columns, Brick pillars, Brick
walls, Partitions, using sub frame of 1.5mm thick aluminium profile fixed in to
the above corner surfaces by using anchor fasteners. Then the top covering
with Rigid PVC panel profile is to be fixed on the sub frame by interlocking. The
rate shall be inclusive of necessary hardwares etc; complete as per drawing as
directed.
Amount in Rs….
In Words
Each
kg
Rmt
Supplying, Fabricating and commissioning of Centralized Garbage chute of
approved make (SS430 X 1.2mm thk), 450mm dia with a provision of
autoclosing intake down at every floor level and a fire rated door (90 minutes
rating-UL label 10B) at the discharged end, with required garbage trolley, etc.,
complete as per BS 1703:2005,IS6924-2001& NBC 2005 specification. The
rate shall include all installation components, scaffolding for erection, required
structural brackets with anchor fasteners, Sprinklers for fire and cleaning,
necessary vent with bird netting etc.. as directed.
73
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
a
Total
Quantity
1.00
Unit
Description of Work
Per
In Figures
Nos
Amount in Rs….
In Words
Each
Ground Floor to Sixth Floor
b
1.00
Nos
Each
Ground Floor to Fourtenth Floor
135
4.00
Nos Supplying and fixing of MS powder coated Letter Box of approved size and
shape as per drawing as directed 1150 ht x 900 w x 100D. Cluster of 21 Boxes
Each
136
81.86
Sqm Providing and fixing of mirror But in general 6mm thick mirror with aluminium
frame for backing frame fixing with 12MM thick BWR ply fixing with stainless
steel studs.
Sqm
137
Providing and fixing Reception table made to shape and pattern identical as per
Drawing. and to a height of two levels 1050 mm/ 750 mm , but in general it shall
be made of 18mm thick BWR plywood as table top, sides, front and rear side
with adequate supports as directed in both horizontal and vertical directions.
Providing drawers unit with three drawer as per drawing, and side storage with
openable postformed edge shutters and one intermediate shelf at one sides of
the table. All the front, side’s surfaces finished with combination of corian
material of approved color and 6mm thick milky white glass with inside light
provision as per drawing detail, Table top at 750mm with 25mm thick exterior
grade particle board with postformed laminate (campagne shade from Merino)
and at 1050mm ht top shall be finished with corian material of approved color.
74
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
138
Total
Quantity
Unit
Description of Work
Per
In Figures
7.89
Rmt Rate shall be inclusive of providing edge molding of approved shape, making
cut open in the table as per drawing detail, storage shutter and drawer are
made with 18mm thick BWR ply finished with 1.5mm thick laminate of approved
colour and other recessed surfaces are finished with 1mm thick laminate. Rate
shall include for necessary wastages, hardware's(Hettich) like sliding runners,
auto closing hinges, locking facility with one master key for Two drawers and
storage, araldite adhesive for fixing corian etc. Rate to include for providing
teakwood lipping, teak wood foot rest duly finished with melamine polish etc. All
factory finished as per drawing.
Rmt
26.63
Sqm
a
611.44
Sqm Providing and fixing soft board panel of specified sizes having 12 mm thick
soft board covered with felt fabric of approved make and shade of premium
quality The board shall have beech wood beading, lipping all-round. The board
shall be fixed on prepared surface with necessary hardware fittings etc.
complete. All concealed wood works shall have sealer polish as directed. Rate
quoted shall be for the complete finished work including all the materials and
labour mentioned above.
Providing and fixing Pelmet made to shape and sizes as given in below, but in
general it shall be made out of 18mm thick BWR plywood and lined with 1.5mm
thick lamination of approved colour as directed. The rate shall be inclusive of
necessary accessories like hangers rods/ Hilti anchor fasteners, sunken screws
etc; complete. All factory finished
Rmt Same as above specification but the size of the pelmet shall be 150x150mm
b
591.72
Rmt Same as above specification but the size of the pelmet shall be 300x150mm
Rmt
140
897.44
Rmt Providing and fixing Drapery rod, using decorative aluminium tubular pipe with
approved color powder coating of required length. Rate to include side covering
heads, required number of holding bracket and necessary hardwares etc.
Rmt
139
75
Amount in Rs….
In Words
Rmt
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
145
123.28
Sqm Providing and fixing of Digitally reproduced Scotch print decorative 3M graphics
(with controltac & comply feature for direct, bubble-free application on walls) as
per the theme selected by clients with UV protective matte over laminate.
Customized imagery. The rate shall be inclusive of material, Hardware for fixing
the graphics and fixing charges etc.
Sqm
141
118.35
Sqm Providing and fixing of imported wall paper of approved design, fixing details
as per manufacturer standard.
Sqm
142
Amount in Rs….
In Words
Providing and fixing matt finish white mark writing board of enamelled sheet
steel front, GI back over approved inner core, of specified size black or
chocolate colour anodised aluminium beading to form the screen including the
necessary accessories such as magnetic symbols, magnetic letters, magnetic
strips, magnetic eraser, magnetic dry marker 4 Nos., spare felt for eraser, board
fixing clips etc. and the board shall be made out of enamelled sheet with
backing of AC sheet to suitable thickness etc. complete and all as per
manufacturer's specification and as directed by the EngineerIncharge/Consultant. The rate include excise duty, sales tax and surcharge,
central excise duty, delivery charges and fixing charges, if any etc. complete
and all as directed by the Engineer-Incharge/Consultant. Rate shall inclusive of
making and fixing wooden ledge for full length of the board for keeping marker
pen, eraser etc. Rate quoted shall be for the complete finished work including
ledgeboard to keep accesories , and all materials and labour mentioned above.
a
4.00
Nos
Size of 2400 x 1200mm(meeting room)
Each
b
36.00
Nos
Size of 1800 x 1200mm
Each
76
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
c
64.00
Nos
Size of 1500 x 1200mm (Head room)
Each
d
11.00
Nos
Size of 450x600mm(cabins)
Each
143
Amount in Rs….
In Words
Providing and fixing vertical blinds with 89/75 mm wide imported superior
polyster base fabric vanes with Scotchguard application as per approved
sample, make of Vista Levellor or approvred equivalent make and the ranges
of louver shall be in ' Select and Classsic'. The vertical blinds shall have a head
rail of extruded anodised high strength aluminium alloy, shall be 25 mm x 50
mm high or equivalent with wall thickness of 1.2 mm or equivalent. End
control units consists of reduction gearbox having the reduction ratio of 3.:5:1
for a very smooth operation of the blind.This unit consists of planetry gear in the
outer housing,four small tranmission gears fitted in the middle assembly and a
end receiving gear attached to central sprocket unit.
Tilter chain is made of 4.5mm plastic beads moulded on 2.2mm thick polyster
card.The pitch of the beads is 6mm.The end control unit have the facility to
rotate the louver by 180 degrees.Tilt rod is made of extruded aluminium having
3 keyways and the average dia shasll be 5.8 mm .Carrier ( Runner ) is made of
moulded plastic having anti friction additive.It consists of polymer housing with
wheels mounted on sides & has a gear and worm mechanism with vertical
worm fixed with a tongued poly-carbonate stem to hold the louvers. Spacer is
made of Moulded Derlin having friction additive.
468.45
Sqm The vanes shall be capable of 180 deg. rotation in position and shall be of
polyester / viscose yarn dyed in fast colors a strain resistant chemicals
treatment or equivalent protective coating shall be applied on vanes. The
installation shall be complete in all respects.(N&S)
77
Sqm
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
a
144
145
Total
Quantity
Unit
Description of Work
Per
In Figures
1,380.68
Sqm Specification same as above but the fabric shall be made of specially coated
non-curl Blackout fabric to repel oil / water / stains, with complete fittings and
front valance as per approved sample and make including reduction gear tilter
louver (E)
143.00 Rmt Providing and fixing storage unit to a width of 600mm and 2100mm height as
per drawing but in general, it shall be made out of 19 mm thick BWR plywood
on all sides and intermediate shelves with necessary and the openable shutter
shall be made out of 19mm thick BWR plywood with necessary teakwood
supports etc complete. All exposed surfaces shall be finished with 1.5 mm
thick Laminate of approved shade and all inner / recessed surfaces shall
have 1mm thick laminate finish of approved shade. Rate to include all
hardware's, auto closing cabinet heavy duty hinges, handles - of approved
make, including locking arrangements with master key of approved make etc.
complete.(lab sample record)
12.33 Rmt Counter with Storage Cabinet:
Providing and fixing granite counter to a minimum width of 600 mm and to a
specified height as shown in drawing(750 to 900mm) but in general, the
counter top shall be made of 18mm thick water proof plywood topped with
granite slab of 18 mm thick Black colour. The rate shall include for the
providing storage unit below with openable shutters. The top, bottom and
intermediate shelf having 18 mm thick water proof plywood with 1.5 mm thick
laminate. The openable shutter shall be made of 18 mm thick BWR plywood
finished with laminate including hardwares like handles,hinges, ball catches
etc.complete. Rate shall be inclusive of providing SS sink with drain board,
garbo drain of approved make at specified location. Rate shall be inclusive
providing water supply inlet and drainage outlet for each floor as per site
condition. The rate shall be inclusive of all CP sanitary accessories such as
pillar cock, bottle trap, angle valve etc. of Jaguar make.
78
Amount in Rs….
In Words
Sqm
Rmt
Rmt
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
146
147
148
Total
Quantity
Unit
Description of Work
Per
In Figures
109.97 Rmt
4.94
Sink and wash basin bottom covered with louvered shutter:
Providing and fixing of to a specified height as shown in drawing(750 to
900mm) but in general the counter bottom frame of 75x37mm first class teak
wood at top and verticals at 900mm c/c. The openable shutter shall be made of
18 mm thick BWR plywood with louvered all the exposed surfaces of ply
finished with 1.5mm thick laminate including hardwares like handles, tower
bolt, hinges, ball catches etc.complete. All the exposed edges of ply shall
covered with teak wood lipping. Rate shall be inclusive of applying melamine
polish at all the teak wood surfaces and other hidden inside surfaces are
covered with sealer polish.
Sqm Providing and fixing of backdrop at reception as per drawing and as directed, in
general it shall be made with 12mm thick BWR ply with Acrylic sheet CMRL
logo and necessary backing lighting of LED etc all as per drawing details.
Amount in Rs….
In Words
Rmt
Sqm
Wardrobe
Providing and fixing Wardrobe including loft as per drawing but in general, it
shall be made out of 18 mm thick Particle Board of Action Tesa make or
approved equivalent on all sides including top, with intermediate shelves with
necessary PVC supports, finished with approved shades of Laminate. The open
able shutter and shall be post formed and shall be made out of 18mm thick
Particle Board and external surface shall be finished with MR Grade Laminate
of Merino or approved equivalent. Rate shall include for providing matching
2mm PVC Lipping for shelves and dividers, made of Particle Board of Action
Tesa make or approved equivalent ,as required. All exposed surfaces shall be
finished with 1.5 mm thick laminate of approved shade and all inner / recessed
surfaces shall finished with 1mm laminate. Shutter back side shall be finished
with 1mm thick Laminate of approved shade.
79
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
a
63.00
Set
Rate shall be inclusive of providing and fixing mirror on shutter as per drawing.
The rate shall also include for fixing all the hardware and accessories fixing
labour, electricity, all complete from Hettich / Haffele / Blum or approved
equivalent.
The hardware shall be inclusive of but not limited to the following hardware and
accessories in Hettich or approved equivalent makeEcomat series hinges, Garment Rails 30x15mm for required length as per
drawing including supports as necessary, telescopic runner channel for
drawers, locking arrangements for all internal drawers and external shutter
including master key with Multipurpose Drawer Square Lock 32mm etc.
complete.
Note: All wire baskets, accessories, handles etc shall be of SS 304 grade.
Wardrobe of size 3000x600mm x 2850mm Ht. (incl Loft)
b
36.00
Set
Wardrobe of size 1550x500mm x 2850mm Ht. (incl Loft)
Nos
c
27.00
Set
Wardrobe of size 1900x600mm x 2850mm Ht. (incl Loft)
Nos
Nos
Kitchen
80
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
149
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and fixing Modular Kitchen of approved make including loft as per
drawing but in general, it shall be made out of 18 mm thick BWR Ply of Action
Tesa make or approved equivalent on all sides including top, with accessories,
drawers and intermediate shelves as per drawings and specification with
necessary PVC / Steel supports. The open able shutter and drawer front shall
be post formed on 2 sides and 2 mm pvc edge banding on other 2 sides and
shall be made out of 18mm thick BWR Ply and external surface shall be
finished with MR Grade Laminate of Merino or approved equivalent. Rate shall
include for providing matching 2mm PVC Lipping for shelves and dividers,
made of 18mm thk BWR Ply of Action Tesa make or approved equivalent ,as
required. All exposed surfaces shall be finished with 1.5 mm thick laminate of
approved shade and all inner / recessed surfaces shall finished with 1mm
laminate.
The counter top shall be finished with suitable supports and shall be made of
two layers of 18mm thick BWR plywood. Rate shall be inclusive providing and
fixing of SS sink with drain board of Nirali or approved equivalent make (Model:
Super Slider Satin finish-850X510mm), garbo drain of approved make at
specified location etc., complete. Rate shall be inclusive of making provision for
fixing of Chimney hood including ducting till the external wall and exhaust outlet
point, of approved make at specified location etc., complete, as directed.
The rate shall include for fixing all the hardware and accessories fixing labour,
electricity, all complete from Hettich / Haffele / Blum or approved equivalent.
The hardware shall be inclusive of but not limited to the following hardware and
accessories in Hettich or approved equivalent makeEcomat series hinges, Intermat-9943 Alu Frame Hinge '0' Crank hinges
including supports as necessary, telescopic runner channel for drawers, skirting
clip, etc. complete.
150
Kitchen of size 2700x600mm x 1900mm Ht. (incl Loft) as per drawing. Rate
shall include for providing and fixing Accessories as mentioned below in Hettich
or approved equivalent makeNote: All wire baskets, accessories, handles etc shall be of minimum SS 304
grade.
81
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
2 nos Wire Basket Plain with Channels, hardware and supports as required for
drawer of Size 900 x 600 x Ht 325mm each with 300mm Handle
4 nos Wire Basket Plain with Channels, hardware and supports as required for
drawer of Size 450 x 600 x Ht 325mm each with 150mm Handle
2 nos Wire Basket - Plate with Channels, hardware and supports as required
for drawer of Size 600 x 600 x Ht 300mm each with 150mm Handle
2 nos Wire Basket - Cup & Saucer with Channels, hardware and supports as
required for drawer of Size 600 x 600 x Ht 200mm each with 150mm Handle
2 nos Cutlery Tray with Channels, hardware and supports as required for
drawer of Size 600 x 600 x Ht 150mm each with 150mm Handle
1 nos Bottle Pull Out with Frame Silent H599 Silver, Frame Silent Front Angle,
2 nos Frame Baskets of 160mm each, hardware and supports as required for
drawer of Size 300 x 600 x Ht 650mm each with 150mm Handle
1 nos Tall Unit with Dispensa Frame Silver 362/1900-2300, Dispensa Full
Extension Silent 1000 N Silver, 2 nos Dispensa Front Stabilisator Silver, 5 nos
Dispensa Clip-On Basket of 400mm each, hardware and supports as required
for tall unit of Size 450 x 600 x Ht 2100mm each with 450mm Handle
1 nos Dish Drainer Rack Set SS 600 with shutter in cabinet of size of size 600 x
300 x Ht 650mm each with shutter, hardware and supports as required for each
with 150mm Handle
6 nos Above Counter wall cabinets with 2 Flap Stay Basic in each shutter,
hardware and supports as required for cabinets of size 600mm Width x 350mm
Ht each with 150mm Handle
1 nos Waste Bin It Classic 13lts capacity fixed to the inside of shutter in the
cabinet below the sink of size 600x 600 x Ht 650mm with shutter, hardware and
supports as required for each with 150mm Handle
82
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
36.00
151
Unit
Description of Work
Per
In Figures
Set
Remaining cabinets and loft with size as per drawing with shutters, ecomat
hinges, hardware and supports as required for each with 150mm Handles
Amount in Rs….
In Words
Nos
Providing and fixing PVC (6 Kg/sqcm class) pipe of specified dia below and
approved make as water down take pipe with all specials, accessories and
joints with solvent cement solution according to manufacturer’s specification.
a
641.03
Rmt 150 mm dia
Rmt
b
16.77
Rmt 110 mm dia
Rmt
152
37.87
Sqm Providing and fixing glass block partition using approved make of glass blocks
of size 200 x 200 75 mm with jointing compound, adhesives mixed with white
cement and the joint shall be finished neatly as per the manufacture's
specification.Item shall be inclusive of providing 12 mm thick ply with 1.50 mm
thick metallic laminate band alround on the exposed edges,hardwares etc., as
shown in the approved drawing etc all complete as directed by the engineer-incharge.
Sqm
153
798.82
Sqm Design and fixing Atrium roof with hollow pipes & tensile fabric structure using
20% translucency as per the drawing CMRL/HQ/MNB/AR-20/01/01/176563.
Sqm
Total Amount C/o to Summary - (A ) ……..
83
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
L
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Road & Pavement Works
154
5,680.48
Sqm Preparation & sectioning the area road surface and compacting with 10 ton
power roller including forming camber and gradients watering and rolling to
reach required density as complete.as directed by the Engineer-in-charge.
Sqm
155
1,704.15
Cum Construction of 300mm the Granular subbase (GSB) by providing coarse
graded material 53mm to 4.75 mm ,spreading in uniform layers with motor
grader on prepared surface mixing by mix in place method with rotavator at
OMC and compacting with vibratory roller to achieve the desired density, as
complete in all respects complying with relevant standard IRC,MORTH and
MOST Specifications and as directed by the Engineer-in-charge.
Cum
156
6,146.95
Cum Providing, Laying, Spreading and compacting 45 mm to 4.75 mm graded stone
aggregate of 200mm the wet mix macadam (WMM) specification including
premixing the material with water at OMC in mechanical mix plant,carriage of
mixed material by tipper to site,laying in uniform layers with paver in subbase /
sub course on well prepared surface and compacting with vibratory roller to
achieve the desired density,as complete in all respects complying with relevant
standard MOST specification,as directed by the Engineer-in-charge.
Cum
157
572.00
Cum Providing and laying 100mm the. Plain cement concrete1:3:6 (One cement,
three fine aggregate and six coarse aggregate) by using coarse graded
aggregate of 25 mm and down size for levelling course in road and pavement
areas wherever necessary (as per drawing) including laying in layers of
thickness not exceeding 100mm and in alternative bays not exceeding 40 sqm
as directed including form work wherever necessary and well compacted etc. as
complete in all respects complying with relevant standard specification as
directed by the Engineer-in-charge.
Cum
84
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
158
159
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
Providing and laying controlled cement concrete mix of M20 grade to a
thickness of 150 mm for roads and pavements laid to required slope and
camber in panels confirming to IRC standard. Rate shall include for providing
IRC Weldmesh of size 100x100 - 12 Gauge - one layers confirming to IS: 1566
& IS: 4948 or equivalent BS, necessary formwork, shuttering,props, bracing
and wedges, sufficiently strong & stable, providing 10 to 25 mm wide expansion
joints and construction joints & closing the joints using polyurethane sealant "VULKEM" - 202 PU from Supreme or approved equivalent make etc.complete,
as directed by the Engineer-in-charge .
857.99
Cum Rate shall include for preparation of surface, laying the concrete in panels of
area not more than 40 Sqm with construction joints and such joints shall be
made in the position hereinafter specified or elsewhere as approved. Such
joints shall be truly vertical or horizontal as the case may be, except that in an
inclined or curved members the joints shall be strictly at right angles to the axis
of the member.Concrete shall be compacted by mechanical vibrating machine
until a dense concrete is obtained. The vibration continues during entire period
of placing concrete with top shall be provided with broom finish. Compaction
shall be complete before the initial setting starts confirming to specification and
over vibration shall be avoided and all confirming to IRC standards or
equivalent BS specification etc complete, as directed by the Engineer-incharge.
Note: Actual laid plan area will be Measured.
85
Cum
Civil
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description of Work
Per
In Figures
Amount in Rs….
In Words
160
5,223.87
Sqm Supplying and laying Shotblasted Flexi Pavers of approved design - 65 mm
thick, total weight shall be 25 kg approximately per one set or 1.94 Sft of flexi
pavers contains five pieces including transportation of the blocks to the site
,preparation of surface,supplying and filling with dry river sand to 50 mm thick,
leveling and compacting with plate vibrator and laying of the flexi paver blocks
with sand binding and final compaction with plate vibrator of 3 tone capacity
finishing the surface including cutting of blocks at the edges including all labour
and materials etc as complete in all respects complying with relevant standard
specification, as directed by the Engineer-incharge. (For Pathway)
Sqm
161
719.93
RMT Providing thermoplastic painting for car park and road line and arrow marks
with 100mm wide involving cleaning the surface free of dirt and loose particles
applying one coat of primer and applying one layer of thermoplastic paint with
drop on glass beads. Rate shall include for all materials & labour components
etc., as complete all respects complying with relevant IRC specifications, as
directed by the Engineer-incharge.
RMT
Total Amount C/o to Summary - (A ) ……..
86
Civil
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO RAIL AMENITIES AT
NANDANAM,CHENNAI
BILLS OF QUANTITIES
SCHEDULE - II - PLUMBING WORKS
Rate in INR
S.No
A
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
SANITARY FIXTURES AND CP FITTINGS: (SUPPLY &
INSTALLATION)
General Notes
Detail of Sanitary fixture are for the information of the Contractor,
however model / makes of all sanitary fixture shall be selected by
Architect / Interior designer / client and the same shall be binding for
execution
All sanitary fixture and accessories / CP fittings shall be issued free
of cost by the employer alongwith standard accessories. The
contractor shall supply all fixing / supporting devices, nuts, bolts,
screws, hangers as required and install the fixture / fitting in a neat
workman like manner
No additional all fixing cost shall be paid for change in type of
sanitary fixture or fitting.
Provision of extension piece for final connection of CP fitting shall be
supplied and installed by the contractor accordingly (as required)
87
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
1
120
Unit
Description
In Figures
Providing and fixing white vitreous china pedestal type water closet
(European type W.C. pan) with seat and lid, 10 litre low level white
P.V.C. flushing cistern, including flush pipe, with anually controlled
device (handle lever), conforming to IS : 7231, with all fittings and
fixtures complete, including cutting and making good the walls and
floors wherever required :
Nos. 17.2.1.W.C. pan with ISI marked white solid plastic seat and lid
In Words
Per
Amount in
Rs….
Each
Note: EWC with accessories will be provided by Client necessary
consumables like brass screws, CP extension nipple of approved
make, dia and length, wooden plugs, white cement, sealants etc.,
required if any, shall be arranged by the contractor.
2
Providing and fixing white vitreous china pedestal type water closet
(European type) with seat and lid, 10 litre low level white vitreous
china flushing cistern & C.P. flush bend with fittings & C.I.brackets, 40
mm flush bend, overflow arrangement with specials of standard make
and mosquito proof coupling of approved municipal design complete,
including painting of fittings and brackets, cutting and making good
the walls and floors wherever required :
91
Nos. 17.3.1 W.C. pan with ISI marked white solid plastic seat and lid
88
Each
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Note: EWC with accessories will be provided by Client necessary
consumables like brass screws, CP extension nipple of approved
make, dia and length, wooden plugs, white cement, sealants etc.,
required if any, shall be arranged by the contractor.
3
200
4
30
Providing and fixing wash basin with C.I. brackets, 15 mm C.P. brass
pillar taps, 32 mm C.P. brass waste of standard pattern, including
painting of fittings and brackets, cutting and making good the walls
wherever require:
Nos. 17.7.1 White Vitreous China Wash basin size 630x450 mm with a
pair of 15 mm C.P. brass pillar taps
Providing and fixing white vitreous china flat back half stall urinal of
size 580x380x350 mm with white PVC automatic flushing cistern, with
fittings, standard size C.P. brass flush pipe, spreaders with unions
and clamps (all in C.P. brass) with waste fitting as per IS : 2556, C.I.
trap with outlet grating and other couplings in C.P. brass, including
painting of fittings and cutting and making good the walls and floors
wherever required :
Nos. 17.5.1 Single half stall urinal with 5 litre P.V.C. automatic flushing
cistern
89
Each
Each
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
5
12
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for shower assembly
units consisting of two in one wall mixer with conversion bend for
overhead shower with wall flanges etc., complete in every respect
including, cutting, chasing & making good the walls.
Each
6
108
Nos. Providing&Fixing Concealed bath shower divertor, Single lever
divertor exposed parts, spout, shower arm, overhead shower and wall
flanges complete and as complete, as directed by Engineer-Incharge
(Make :- Jaquar/ Equal approved make, Model:- ALD - 065, OPL 15065K, SPJ- 429, SHA - 483 L 450, and OHS-1779).
Each
7
211
Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for CP health faucet
consisting of:
Nos. CP flexible pipe Model No : 573
Each
211
Nos. PTMT Angle Stop cock with Flange 15 mm
Each
90
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
8
48
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for best quality
stainless steel sink with drain board 510x1040 mm bowl depth 178
mm,38mm dia CP waste couplings, 38mm dia bottle trap etc
complete. The working shall include fixing the sink in position setting
in CM etc, complete and also cutting holes in wall and floors and
making good the floor.
Each
9
1
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for best quality and
approved make stainless steel kitchen sink with single bowl only size
610x460 bowl depth 200 mm made of 18 gauge sheet 40mm dia CP
waste coupling, 40mm PVC waste pipe etc, complete.
Each
10
109
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for 15mm dia CP sink
cock with swinging spout (wall mounted model) for kitchen sink with
CP wall flange etc. Notes: Conditions mentioned in item no.1 shall be
applicable.
Each
11
48
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for 15mm dia CP brass
angle stop cock with wall flange and 15mm dia PVC connecting pipe
for aquaguard / modular RO plant of floor kitchen area as specified in
the drawings.
Each
91
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
12
10
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for 15mm dia CP long
body bib cock with CP wall flange etc.
Each
13
62
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for 600mm long 25mm
dia CP brass superior quality towel rail with brackets, and flange with
concealed brass screws etc., including cutting & making good the
walls. Notes: Conditions mentioned in item no.1 shall be applicable.
Each
14
62
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for CP brass liquid
soap container fixed on wooden cleats with CP brass screws &
washers including driling hole in walls with dril gun and making good
the walls.
Each
15
211
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for C.P. brass toilet
paper holder 150 x 150mm with aluminium roller including cutting and
setting in walls with cement joints and making good the wall.
Each
16
182
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for stainless steel soap
dish 138x102x75 mm including cutting and setting in walls with
cement joints and making good the wall.
Each
92
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
17
211
Nos. Providing & fixing C.P. brass Double coat hook with PVC rawl plug &
C.P. brass screw complete as required and as complete, as directed
by Engineer-Incharge (Make :- Jaquar/ Equal approved make, Model:AKB - 35761).
Each
18
170
Nos. PTMT Towel Ring 215x200x37 mm.
Each
19
176
Nos. P.T.M.T. Stop cock (concealed) 15 mm
Each
20
120
Nos. Providing and fixing to the place of installation and fixing testing and
commissioning of approved make and model for racold / venus /
equalent make electically operated storage water heater having 25lts.
Capacity, inner container made from copper or stainless steel
including the remal instalation safety valve, vacuum relief valve, neon
lamp, mounting brackets, installing in position with coach screws or
bolts, nuts, 2nos angle stop cock and 2nos flexible hose etc,
complete. Notes: a) Conditions mentioned in item no.1 shall be
applicable. (Venus - Magma-Vertical-Model 15GV) 15 lit. capacity.
Each
93
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
21
10
Nos. Providing&Fixing solid state, no touch operting, fully hygienic hand
drier of approved shade with single/double blower, with time delay,
summer & winter control, music while drying, volume ON/OFF
controls including providing necessary brackets, cable from drier to
Plug, Plug top key and lock etc, complete as directed by the Engineerincharge.(Make-Eronics / Equal approved make, Model No. - EH06S
)
Each
22
2
Nos. Providing&Fixing, testing and commissioning of Adjustable Type of
Washbasin 65x35 with one pair of mounting brackets, EWC and
cistern complete with fittings and seat cover, one no hinged rail, 76
cm and five no grab rails 60 cm and as complete, as directed by
Engineer-Incharge (Make :- ROCA/ Equal approved make, Model:(Carron PP Closet with Antimicrobial seat cover - C0250 + C8094),
(Hand Rails 600 - C8154), (Hinged Arms - C8153), (Plastic cistern C8157), Indus basin (500*400mm - C0471), (Pillar Cock with Aerator T1602A1))
Each
23
462
Providing and fixing CI grating 150X150mm floor finish as per
architect requirement & suitable for waste and FD and as complete,
as directed by Engineer-Incharge(Make :- Chilly- India King or equal
approved make,)
Nos. Code No:1336
Amount in
Rs….
Each
Total Amount C/o to Summary……..
B
WATER SUPPLY PIPES AND FITTNGS (INTERNAL AND EXTERNAL ):
INTERNAL:
94
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
1
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing & fixing testing and commissioning of CPVC
(Chlorinated Poly Vinyl Chloride) water supply pipes with pipe as
per CTS SDR - 11 at a working pressure of 320 PSI at 23 deg C & 80
PSI at 82 deg C, using solvent welded CPVC fittings i.e. Tees,
Elbows, Couplers, Unions, Reducers, brushings etc. including
transition fittings connection between CPVC & metal pipe/GI) ie.
Brass Adaptors (both Male & Female threaded) conforming to ASTM
D-2846 with only CPVC solvent cement conforming to ASTM F-493
with fabricated & subsequently hot dip galvanized clamps / structural
steel supports as required / directed at site including cutting chasing
and fixing the same with cement concrete / cement mortar as
required, including painting the exposed pipes with one coat of
desired shade of enamel paint. All termination points for installation of
faucets shall have brass termination fittings. Installation shall be to
the satisfaction of PMC /Consultant / manufacturer of pipes & fittings.
Notes: Rate Quoted shall be inclusive of cost of other consumables
like hacksaw blade, solvent for CPVC pipe of make flowguard etc.
1.1
2656
Cold,Flush&Hot water Supply:
Mtr. 20 mm dia
Mtr
1.2
372
Mtr. 25 mm dia
Mtr
95
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
1.3
14
Unit
Description
In Figures
Mtr. 32 mm dia
In Words
Per
Amount in
Rs….
Mtr
Shaft,terrace ground and basement Piping
2
Providing & fixing testing and commissioning of CPVC
(Chlorinated Poly Vinyl Chloride) water supply pipes with pipe as
per CTS SDR - 11 at a working pressure of 320 PSI at 23 deg C & 80
PSI at 82 deg C, using solvent welded CPVC fittings i.e. Tees,
Elbows, Couplers, Unions, Reducers, brushings etc. including
transition fittings connection between CPVC & metal pipe/GI) ie.
Brass Adaptors (both Male & Female threaded) conforming to ASTM
D-2846 with only CPVC solvent cement conforming to ASTM F-493
with fabricated & subsequently hot dip galvanized clamps / structural
steel supports as required / directed at site including cutting chasing
and fixing the same with cement concrete / cement mortar as
required, including painting the exposed pipes with one coat of
desired shade of enamel paint. All termination points for installation of
faucets shall have brass termination fittings. Installation shall be to
the satisfaction of PMC /Consultant / manufacturer of pipes & fittings.
Notes: Rate Quoted shall be inclusive of cost of other consumables
like hacksaw blade, solvent for CPVC pipe of make flowguard etc.
Cold,Flush&Hot water Supply:
2.1
402
Mtr. 20 mm dia
Mtr
96
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
2.2
982
Mtr. 25 mm dia
Mtr
2.3
920
Mtr. 32 mm dia
Mtr
2.4
442
Mtr. 40 mm dia
Mtr
2.5
787
Mtr. 50 mm dia
Mtr
2.6
308
Mtr. 65 mm dia
Mtr
2.7
304
Mtr. 80 mm dia
Mtr
2.8
296
Mtr. 100 mm dia
Mtr
Unit
Description
In Figures
97
In Words
Per
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
3
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing & fixing male/ female screwed end full way lever operated
forged brass ball valve of brass body with forged brass hard
chromeplated ball & teflon seat tested to a pressure 15 Kg / sqcm
with (threaded joints) complete as required and as complete, as
directed by Engineer-Incharge/Consultant.
3.1
477
Nos. 20 mm dia
Each
3.2
52
Nos. 25 mm dia
Each
3.3
30
Nos. 32 mm dia
Each
3.4
13
Nos. 40 mm dia
Each
3.5
23
Nos. 50 mm dia
Each
98
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
4
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing and fixing C.I. Butterfly valve (Body : Grey Cast Iron,
shaft : SS, Disc : SG Iron (nickel plated), Liner : HT - EPDM/Nylon) of
approved make with flange, washer, nuts & bolts and PN 16
pressure rating including rubber gasket & painting complete.and as
directed by Engineer-Incharge.
4.1
8
Nos. 65 mm dia
Each
4.2
2
Nos. 80 mm dia
Each
5
Providing & fixing dual flanged C.I. `Y' Strainer with stainless steel
fine wire mesh perforated sheet basket with necessary flange/ unions
nuts, bolts and washers complete as required and as complete, as
directed by Engineer-Incharge
5.1
2
Nos. 40 mm dia
Each
5.2
3
Nos. 50 mm dia
Each
99
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
5.3
1
Nos. 65 mm dia
Each
5.4
1
Nos. 80 mm dia
Each
6
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing and fixing testing and commissioning of 600mm long
puddle flange consisting of 6mm thick welded MS plate, flanges of
sutible size property fixed in walls of water tanks as per specifications
and approved drawings of following diameters.
6.1
5
Nos. 32 mm dia
Each
6.2
3
Nos. 40 mm dia
Each
6.3
10
Nos. 50 mm dia
Each
100
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
6.4
6
7
2
8
8.1
Unit
Description
In Figures
Nos. 65 mm dia
In Words
Per
Amount in
Rs….
Each
Constructing masonry Chamber 60x60x75 cm inside, in brick work in
cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve, with
C.I. surface box 100mm top diameter, 160 mm bottom diameter and
180 mm deep ( inside) with chained lid and RCC top slab 1:2:4 mix (1
cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal
size ) , i/c necessary excavation, foundation concrete 1:5:10 (1
cement : 5 fine sand: 10 graded stone aggregate 40 mm nominal
size) and inside plastering with cement mortar 1:3 (1 cement : 3
coarse sand) 12 mm thick, finished with a floating coat of neat
cement complete as per standard design :
Nos. 18.33.1 With common burnt clay F.P.S.(non modular) bricks of class
designation 7.5
Each
Providing and fixing in position of approved quality high pressure
rated Gun Metal Float Valve with copper ball float and brass rods
of required length suitable for test pressure of not less than 15
Kg/sqcm of the following sizes and as complete,over head water
tank. as directed by Engineer-Incharge.
2
Nos. 32 mm dia
Each
101
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
8.2
2
Nos. 40 mm dia
Each
8.3
1
Nos. 50 mm dia
Each
9
9.1
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing & fixing Auto Air vent for cold water supply risers, suitable
for pressure not less than 15 Kg/Sq.cm.
60
10
Nos. 25 mm dia
Each
Providing, fixing , testing and commissioning water metre with
direct reading dial in KL with all necessary fitting such as threaded
pieces, unions pressure gauge, isolation cock, flanges piece for
future removal, flanges / unions complete with all necessary
testing charges and obtaining test certificates from municipal
authorities and as complete, as directed by Engineer-Incharge., on
following size pipe lines (1 no. strainer shall be provided at inlet &
outlet and cost shall be inclusive for the same).
1
Nos. 50 mm dia CI
Each
102
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
11
91
Nos. Providing, fixing, testing and commissioning of PVC encappsulated
foot steps 300 mm staggered apart for UG sump tank as per
standard make of SFRC or equivalent make fixing in RCC walls
during casting of RCC walls as per location shown in drawings.
Each
12
23
Nos. Rectangular shape 500x500 mm precast R.C.C. manhole cover with
frame - M.D. - 10
Each
13
18
Nos. Rectangular shape 600x450 mm precast R.C.C. manhole cover with
frame - L.D. - 25 in as per location shown in drawings.
Each
14
Amount in
Rs….
Providing and fixing pressure reducing station for cold water
supply comprising of 2 Nos Gun Metal ball valves on inlet & outlet & 1
no. globe valve for by-pass 1 No pressure reducing valve with
flanged/ screwed connection, 1 No. `Y' strainer, 2 Nos Pressure
gauge on inlet & outlet, and 1 No. 15 mm dia safety valve. The
complete system is tested to a pressure not less than 15 Kg/Sq.cm
and suitable to reduce the pressure upto 2 Kg/Sq.cm) Including
necessary pipe & fittings; i.e. flanges/ unions, nuts, bolts and washers
complete as required and as complete, as directed by EngineerIncharge/Consultant.
103
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
14.1
12
Nos. 25 mm dia
Each
14.2
10
Nos. 32 mm dia
Each
14.3
9
Nos. 40 mm dia
Each
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Total Amount C/o to Summary……..
C
SOIL,WASTE,VENT PIPES AND FITTINGS ( INTERNAL & EXTERNAL)
1
Providing, fixing, testing and commissioning of uPVC soil, waste and
vent pipe confirming to IS : 13592 -and confirming to IS : 4985 of
Pipe Class II- 6 kg / sq.cm pressure rated self fit type with socket and
solvent cement joint including all fittings, like Bends, Tees, Elbows,
Collars, junction, inspection doors, cowls, offsets, access pipes,
jointing with solvent cement followed by application of leak proof
adhesive like FRP paste & laid on floors inside the toilets kitchen and
utility to the required slope including making necessary bores in walls
/ foundations / concrete slab as applicable, making good the bores
with CM 1:3 or cement concrete 1:2:4 as applicable, curing etc.,
complete. Cost shall be inclusive of providing protection to pipe all
round / haunches as per specification. (Running at toilet
sunken/balcony&Basement ).
104
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Notes:
Wall chasing shall be done with chasing machine to required lines
and levels.
Rate Quoted shall be inclusive of cost of cement, sand and other
consumables like hacksaw blade etc.
INTERNAL:
1.1
1320
Mtr. 75mm dia
Mtr
1.2
829
Mtr. 110mm dia
Mtr
2
a)
b)
c)
Providing, fixing, jointing, testing and commissioning of UPVC pipe
confirming to IS : 13592, and confirming to IS : 4985 (Pipe Class II - 6
kg / sq.cm) cut to required lengths including all necessary fittings and
specials such as bends, junctions offsets, access pieces (plain or
door) & vent cowl. Fixing at wall / ceiling level supported by G.I.
clamps, hangers etc. duly epoxy coated and as complete, as directed
by Engineer-Incharge(Location for Shaft )
Notes:
Rate Quoted shall be inclusive of cost of cement, sand and other
consumables like hacksaw blade etc.
The vertical downtake pipes running in shaft shall be rubber ring joint
The horizontal pipes running suspended in the ceiling lvl shall be to
self fit type with solvent cement joint.
105
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
2.1
1343
Mtr. 75mm dia
Mtr
2.2
1027
Mtr. 110mm dia
Mtr
2.3
83
Mtr. 160mm dia
Mtr
3
a)
b)
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing, fixing, jointing and testing in position the following UPVC
pipes confirming to IS:4985 of 6 Kg / Sq.cm for drainage system cut
to required length. Pipe to be laid below ground level in trenches
upto required depth including excavation in all kind of soil (hard rock),
dewatering, refilling, watering, ramming and removing the surplus
excavated material and making good the same complete as required.
Cost shall be inclusive of providing protection to pipe all round /
haunches as per specification and also as complete, as directed by
Engineer-Incharge (For sewer and Sullage line)
Notes:
Rate is excluding for earthwork and backfilling. It shall be measured
separate and paid for.
Rate Quoted shall be inclusive of cost of cement, sand and other
consumables like hacksaw blade etc.
106
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
3.1
52
Mtr. 75 mm dia
Mtr
3.2
89
Mtr. 110 mm dia
Mtr
3.3
292
Mtr. 160 mm dia
Mtr
3.4
65
Mtr. 200 mm dia
Mtr
4
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing & fixing UPVC soil, waste, vent pipework comprising
UPVC pipe conforming to IS :4985-1983 and of required class as
specified below and fittings (moulded as well as fabricated) like
elbows, bends, reducers, threaded tail pieces, caps, suitable elbow
with suitable extension piece for drain point and other specials.
jointing with cement solvent, chasing, cutting and making good the
walls & floors pipes laid in floors shall be encased with 40 mm thick
concrete all around, complete in all respects including testing of
complete installation.
107
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
4.1
372
Mtr. 40 mm dia 6 kg/cm2 ( Class III )
Mtr
4.2
101
Mtr. 50 mm dia 6 kg/cm2 ( Class III )
Mtr
5
462
Nos. Supplying and fixing of approved make UPVC multi inlet floor trap
with110mm dia inlet & 75mm dia outlet and it is fixed in Sunken slab
.and as complete, as directed by Engineer-Incharge.
6
6.1
7
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Each
Providing and fixing uPVC `P' trap of self cleansing design with or
without vent arm complete including cutting and making good the
walls and floors.
4
Nos. 110mm dia inlet 110mm dia out let
Each
Providing and fixing square mouth cast iron gully trap complete in
brick masonry 300 x 300 mm chamber of standard detail with first
class bricks and water tight double seal CI cover with frame of 300 x
300 mm internal size. The weight of cover and frame to be not less
than 10 Kg as per standard design and also as complete, as directed
by Engineer-Incharge/Consultant.
(Note : Cost shall include excavation dewatering and watering
proofing of chambers as directed at site)
108
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
7.1
19
8
Unit
Description
In Figures
Nos. 300 x 300 mm chamber with 150 x 100 mm size “GULLY” trap
In Words
Per
Amount in
Rs….
Each
Designing and constructing brick masonry inspection chamber of
the following sizes in brick work of class 75 in cement mortar 1:5 (1
cement:5 fine sand), R.C.C. top slab with 1:2:4 mix (1 cement : 2
coarse sand : 4 graded stone aggregate 20mm. nominal size)
embeded with frame for manhole, RCC foundation slab. 1:2:4 mix (1
cement : 2 coarse sand:4 graded stone aggregate 40 mm nominal
size) both inside and outside of plastering 12 mm thick with cement
motar 1:3 (1 cement : 3 coarse sand) with a floating coat of neat
cement on inside face, proper water proofing to ensure no ground
water seepage in the manhole, Poly propylene (conforming to
ASTMD - 4101) foot rests (meeting the 224 kg load requirement as
per IS 5455) at 300 mm spacing, benching and making channels
with 1:2:4 cement concrete neatly finished, including necessary
centering and shuttering, reinforcement, excavation, in all kind of soil,
dewatering, refilling, watering, ramming and removing the surplus
excavated earth, making good the same complete as required.
Contractor shall submit the structural design and drawings for the
approval of Project Manager prior to execution.
8.1
16
Nos. 900 x 800 mm size (UP TO 900mm)
Each
109
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
8.2
8
Nos. 1200 x 900 mm size (UP TO 2.4M)
Each
8.3
3
Nos. 1500mm Dia Circular (2.4 to 9.0m Depth)
Each
4
4.1
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing & fixing Cast Iron Manhole cover with frame in Cement
concrete 1:2:4 (one of cement two of sand and four of hardbroken
stone jally) finished neatly etc..as complete, as directed by EngineerIncharge.- For inspection chamber
27
Nos. 600 x 600 mm, Heavy Duty (B-125), Wt 115 kg
Each
Total Amount C/o to Summary……..
D
RAIN WATER PIPES AND FITTINGS
1
Providing, fixing, jointing, testing and commissioning PVC (Class III)
of pressure rating 0.6 Mpa Rain water downtake pipe conforming
to IS:4985 cut to required lengths including all necessary fittings and
specials. Fixing at wall/ceiling level supported by galvanized steel
clamps & hangers etc. Making proper connection with cement solvent
joint as per BIS / manufacturer. Cutting chases/holes in
floors/walls/slab.
110
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
1.1
734
Mtr 75mm dia
Mtr
1.2
954
Mtr 160mm dia
Mtr
2
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Providing, fixing, jointing and testing in position the following UPVC
pipes confirming to IS:4985 of 6 Kg / Sq.cm for rain water pipe cut to
required length. Pipe to be laid below ground level in trenches upto
required depth including excavation in all kind of rain water pipes
(hard rock), dewatering, refilling, watering, ramming and removing the
surplus excavated material and making good the same complete as
required. Cost shall be inclusive of providing protection to pipe all
round / haunches as per specification. (For Rain water line)
2.1
51
Mtr 75mm dia
Mtr
2.2
49
Mtr 160mm dia
Mtr
111
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
2.3
140
3
35
4
Unit
Description
In Figures
Mtr 200mm dia
In Words
Per
Amount in
Rs….
Mtr
Nos. Providing & fixing rain water `Khurras' size 450x450 mm required
depth with lead flashing around the pipe with one piece lead sheet of
3 mm thick set on a layer of cold bitumen. Including Heavy duty
CI/MS grating as per drawing complete as required and as directed
by Engineer-Incharge
Each
Providing and fixing Constructing storm water catch basin internal
clear dimension as mentioned below with 230 mm thick brick
masonry wall using 1st class table moulded brick in 1:4 over a bed
of 150 mm thick 1:4:8 PCC in cement motar 1:5 (1cement: 5 fine
sand),sand), precast perforated RCC top slab in 1:2:4 Mix (1 cement:
2 coarse sand: 8 graded stone aggregate),with angle iron frame,
inside plastring 15 mm thick with CM 1:3 (1cement: 3 fine sand)
finished very smooth with floating coat of neat cement & making
channel in cement concrete 1:2:4 (1cement: 2 coarse sand: 4
gradedstone aggregate) neatly finished complete as per standard
design and as per drawing.
(The rate shall include necessary earth work excavation in all types of
soil excluding soft and hard rock, back filling including consolidation
disposing the excess earth to all leads curing, finishing etc., and back
filling and completion)
Note: Rate Quoted shall be inclusive of cost of cement, sand and
other consumables like hacksaw blade etc including curing.
112
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
4.1
17
5
5.1
Description
In Figures
Nos. Inside size of 450 x 450mm & depth not exceeding 600mm including
providing 450 x450mm precast perforated RCC cover with 50 x 50 x
6mm thick with MS L angle frame.
In Words
Per
Amount in
Rs….
Each
Providing & fixing of uPVC nahani trap of self cleansing design
moulded or fabricated, if not available in size mentioned below, with
or without vent arm, connecting to balcony rain water pipe, complete
including cutting and making good the walls and floors.
180
Nos. 110mm x 75mm dia
Each
180
Providing and fixing CP grating of 6mm thick with rim including
setting in floor with white cement mortar and making good the floor
(Chilli Make).
Nos. P.T.M.T. Grating square slit 150 mm
Each
6
7
Unit
Construction of percolation well / rain water harvest pit of 1.0 m
dia and 3m deep with precast RCC rings, coveringthe top with RCC
slab including supply and fixing 600 x 600 RCC MH cover CI / MS
rungs etc. The quoted rate shall include earth work excavation, back
filling, removing excess earth and making good the floor. The
percolation well harvest pit shall be constructed as per the detail
drawings and specification shall conssit of:
113
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Allernate layers of brick bats, activated charcoal, gravel, pebbles and
toped with fine sand for good infiltration.
5 Nos. bore holes of 160 mm dia from the bottom of percolation pit for
a depth of 6m, drilled by using auger manually.
Bore hole to be filled with medium sized pebbles to provide
meehamical strength to the holes and enhance infiltration.
7.1
68
set Rate quoted shall be inclusive of earthwosk excavation, back filling,
removing of excess earth as per the instructions of engineer - in
charge.
set
Total Amount C/o to Summary……..
E
PUMPS & ACCESSORIES
1
HYDRO-PNEUMATIC SYSTEM
Supply, Installation, Testing And Commissioning Of Compact Self
Contained Skid Mounted Hydropneumatic System As Follows:
a. Vertical, In-Line, Multisage, centrifugal pumps with SS-304 casing
and impeller and SS-316 shaft, CI base & head TEFC motor (with
mechanical seal)
(Vendor to submit performance curves and technical catalog of the
proposed model for review & information)
114
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
The pump shall be selected for performance at best efficiency point.
However, the pump selection shall be suitable for performance with
set point @ + 20% of the rated head.
b. External Pump mounted or wall mounted microprocessor PID
controller and frequency inverter integrated in a single body or as
separate components with pressure sensor transmitter minimum two
lined LCD display, diodes to indicate pump ready, pump running and
fault and capable to communicate with other controllers following
MODBUS-RTU or BACNET Class-2 protocall through RS485 port.
System should be capable to compensate for frictional losses at
lower flows. All alarms should be displayed in the controller. System
should be equiped with dry running protection - Quantity : 1 No.
c. Complete (Skid mounted wall mounted / floor mounted) electrical
control panel comprising of all accessories such as PLCs, pressure
switches, pressure transducers, control wiring and any other
necessary imports etc. (list to be provided by the vendor)
d. Precharged diaphram pressure vessel with food grade membrane,
charging connection, connected to outlet header with necessary
flanges, gaskets, isolating valves, nuts/bolts etc complete.
e. Set of accessories such as pressure switches, pressure
transducers, inter connecting power and control cabling etc. complete
f. Accessories like pressure gauge, MS base frame (Synthetic enamel
painted over a coat of primer)
115
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
g. GI suction and delivery header with flanges for inlet connection,
common outlet header with flanges for outlet connections as
required, and inter connecting piping with flexible connections,
eccentric type reducers etc. all necessary indigenous accessories as
required to complete the installation.
Note: Contractor to note that the suction header is required to have
inlet connection from the Puddle Flange @ water tanks and to the
pump suction. Provision of delivery header is required to have outlet
connection from the pumps. Suitable outlet flanges from the delivery
mainfold / header shall be provided as required.
1.1
1.2
2
1
1
Nos. of Pumps : 3 (2W + 1S)
Water Flow Rate : 1.95LPS (EACH)
Head : 55M
Set Purpose :- Domestic water supply for Admin Block - Low Zone
(Present)
Nos. of Pumps : 2 (1W + 1S)
Water Flow Rate : 1.90LPS (EACH)
Head : 45M
Set Purpose :- Domestic water supply for Type A&B and Guest houseLow Zone (Present)
Set
Set
Metro Water Transfer Pumps:
116
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
2.1
2.2
3
Total
Quantity
1
1
Unit
Description
In Figures
Supply, Installation, Testing, Commissioning and Handing over of 2
nos.Pumps, one no. working and one no. stand-by, for transfering
municipal water from Treated Metro water ug sump to Metro / RO
water over head tanks. The pump set shall be of monobloc type
with bronze impeller and SS shaft. The motor shall be directly
coupled to the pump set and shall be of TEFC Squirrel Cage type.
The pump shall be fitted with mechanical seal. The pump shall be
selected for handling water at 15-40 deg. C. The pump shall be
supplied complete with FRP coated MS fabricated base frame,
foundation bolts, base plate bolts etc. The duty condition of the pump
shall be as under:
Nos. of Pumps : 4(3W + 1S)
Water Flow Rate : 0.55LPS
Head : 90M
Set Purpose :- Drinking water supply for Guest house & Quarters Type
A&B Block (Present)
Nos. of Pumps : 2(1W + 1S)
Water Flow Rate : 0.55LPS
Head : 45M
Set Purpose :- Drinking water supply for Admin, Block (Present)
In Words
Per
Amount in
Rs….
Set
Set
HYDRO-PNEUMATIC SYSTEM
Supply, Installation, Testing And Commissioning Of Compact Self
Contained Skid Mounted Hydropneumatic System As Follows:
117
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
a. Vertical, In-Line, Multisage, centrifugal pumps with SS-304 casing
and impeller and SS-316 shaft, CI base & head TEFC motor (with
mechanical seal)
(Vendor to submit performance curves and technical catalog of the
proposed model for review & information)
The pump shall be selected for performance at best efficiency point.
However, the pump selection shall be suitable for performance with
set point @ + 20% of the rated head.
b. External Pump mounted or wall mounted microprocessor PID
controller and frequency inverter integrated in a single body or as
separate components with pressure sensor transmitter minimum two
lined LCD display, diodes to indicate pump ready, pump running and
fault and capable to communicate with other controllers following
MODBUS-RTU or BACNET Class-2 protocall through RS485 port.
System should be capable to compensate for frictional losses at
lower flows. All alarms should be displayed in the controller. System
should be equiped with dry running protection - Quantity : 1 No.
c. Complete (Skid mounted wall mounted / floor mounted) electrical
control panel comprising of all accessories such as PLCs, pressure
switches, pressure transducers, control wiring and any other
necessary imports etc. (list to be provided by the vendor)
118
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
d. Precharged diaphram pressure vessel with food grade membrane,
charging connection, connected to outlet header with necessary
flanges, gaskets, isolating valves, nuts/bolts etc complete.
e. Set of accessories such as pressure switches, pressure
transducers, inter connecting power and control cabling etc. complete
f. Accessories like pressure gauge, MS base frame (Synthetic enamel
painted over a coat of primer)
g. GI suction and delivery header with flanges for inlet connection,
common outlet header with flanges for outlet connections as
required, and inter connecting piping with flexible connections,
eccentric type reducers etc. all necessary indigenous accessories as
required to complete the installation.
Note: Contractor to note that the suction header is required to have
inlet connection from the Puddle Flange @ water tanks and to the
pump suction. Provision of delivery header is required to have outlet
connection from the pumps. Suitable outlet flanges from the delivery
mainfold / header shall be provided as required.
3.1
1
Nos. of Pumps : 4(3W + 1S)
Water Flow Rate : 2.94LPS
Head : 55M
Set Purpose :- Recycled Treated / Flushing water supply for Admin Block Low Zone (Present)
119
Set
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
3.2
4
Total
Quantity
1
Unit
Description
In Figures
Nos. of Pumps : 4 (3W+1S)
Water Flow Rate : 0.70LPS
Head : 90M
Set Purpose :- Recycled Treated / Flushing water supply for Type A&B
and Guest house- Low Zone (Present))
Automatic
Level
Control
for
Over
Head
Domestic,Recycled treated/Flushing & Metro Water:
Tank
In Words
Per
Amount in
Rs….
Set
-
Supply, Installation, Testing, Commissioning and handing over of
automatic tank level controller comprising of the following installed in
each over head tank and wired up to the basement floor pump room:
.
Magnetic type Level sensor for tank with High Level cut-out and Low
level cut-in - 1 set.
Wiring with 2cx2.5 sqmm PVC insulated, PVC sheathed armoured
cables with copper conductors, duly clamped on walls, under side of
ceiling slabs, etc., interconnecting the level sensor at the OHT and
the control panel in the basement pump room. Consider 300 RMT.
Control panel located at the basement pump room comprising of
incoming disconnect 32 A SFU, O/L relay and DOL / star-delta
starters for the 2 nos. pumps, auto/manual selector switch,
pump1/pump2 selector switch, manual on/off PBs, on, off, trip
indication lamps, 24 hr timer for automatic running and cycling of
pumps (each pump cycles for 24 hrs.), earthing, etc.,
120
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
4.1
3
5
5.1
Unit
Description
In Figures
Nos. 1 panel for metro water tank.
In Words
Per
Amount in
Rs….
Each
Magnetic type Level sensor installed in the basment tank for low
water level cut-out for preventing dry-run of the pumps.
3
Nos. Installed in Metro water tank
Each
Power Cable:
Necessary incoming cables to the panel shall be provided by the
Electrical contractor.
6
Supply, Installation, Testing and Commissioning of Submersible
type Pumps with open type impellers with solid handling capacity of
minimum 20mm, for rain water collection sump pump-out. The pump
shall be supplied with pump mounting clamps, lifting chain of
approximately 3 mtrs. lengths, flexible LDPE helically ribbed / braided
rubber hose discharge pipe fitted to the pump discharge and of
sufficient length and with flanged connections at both ends to suit
pump side & the outlet puddle flanges provided in the basement
floor rain water collection sump near ramp area.
121
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
The pumps shall be supplied with integral or external level controllers,
common control panel with starting contactors for the 2 nos. pumps,
dry run preventors, O/L protection etc., complete. The works shall
include control and power wiring between the level probes & the
panel and power wiring between the panel and the pumps.
Necessary incoming cables to the panel shall be provided by the
Electrical contractor.
Two nos. pumps (1 working & 1 standby) shall be installed in the
basement floor rain water collection sump near ramp area.
6.1
4
7
Nos. of Pumps : 2 (1W + 1S)
Water Flow Rate : 1LPS
Head : 20M
Set Purpose :- Rain water Disposal to neat Storm water drain (Present)
Set
Supply, Installation, Testing and Commissioning of Submersible
type Pumps with open type impellers with solid handling capacity of
minimum 20mm, for Back wash water collection sump pump-out. The
pump shall be supplied with pump mounting clamps, lifting chain of
approximately 3 mtrs. lengths, flexible LDPE helically ribbed / braided
rubber hose discharge pipe fitted to the pump discharge and of
sufficient length and with flanged connections at both ends to suit
pump side & the outlet puddle flanges provided in the basement
floor Back wash water collection sump in Pump room area.
122
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
The pumps shall be supplied with integral or external level controllers,
common control panel with starting contactors for the 2 nos. pumps,
dry run preventors, O/L protection etc., complete. The works shall
include control and power wiring between the level probes & the
panel and power wiring between the panel and the pumps.
Necessary incoming cables to the panel shall be provided by the
Electrical contractor.
Two nos. pumps (1 working & 1 standby) shall be installed in the
Pump room area
7.1
2
Nos. of Pumps : 2 (1W + 1S)
Water Flow Rate : 1LPS
Head : 20M
Set Purpose :- pump room drain pump
Set
8
Pipes,Valves&Accessories for Transfer Pumps within the pump
room.
8.1
Ball Valves
8.1.1
6
Nos. 25 mm
Each
123
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
8.1.2
1
8.2
Unit
Description
In Figures
Nos. 40 mm
In Words
Per
Amount in
Rs….
Each
Butterfly Valves
8.2.1
1
Nos. 50 mm
Each
8.2.2
2
Nos. 65 mm
Each
8.2.3
21
Nos. 80 mm
Each
8.2.4
3
Nos. 100 mm
Each
8.2.5
1
Nos. 150 mm
Each
124
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
8.3
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Dual plate check valves.
8.3.1
0
Nos. 32 mm
Each
8.3.2
1
Nos. 40 mm
Each
8.3.3
1
Nos. 50 mm
Each
8.3.4
1
Nos. 65 mm
Each
8.3.5
14
Nos. 80 mm
Each
8.3.6
2
Nos. 100 mm
Each
125
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
8.4
Unit
Description
In Figures
In Words
Per
"Y" type strainer
8.4.1
1
Nos. 50 mm
Each
8.4.2
1
Nos. 65 mm
Each
8.4.3
2
Nos. 80 mm
Each
8.4.4
2
Nos. 100 mm
Each
8.4.5
1
Nos. 150 mm
Each
9
Amount in
Rs….
Providing & fixing G.I. (Heavy Class) header complete for
submersiable pump discharge manifold comprising of flanges,
unions, check nuts, Tee, Elbow etc.
126
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
9.1
93
Nos. 50 mm
Each
10.1
44
Providing and fixing in position Class C GI pipe work for all pump
suction / discharge line with common header complete with all
fittings like elbow, tee, reducer, flange, union etc. conforming to
IS:1239 (Part 1) for pipes and IS : 1879 (Part 1 to 10) for fittings
including fixing in wall / ceiling / floor level, supported by galvanized
clamps, hangers, vertical pipe support etc.
Nos. 32 mm
Each
10.2
8
Nos. 40 mm
Each
10.3
44
Nos. 50 mm
Each
10.4
52
Nos. 65 mm
Each
10
Unit
Description
In Figures
127
In Words
Per
Amount in
Rs….
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
10.5
34
Nos. 80 mm
Each
10.6
52
Nos. 100 mm
Each
10.7
6
Nos. 150 mm
Each
11
6
Nos. Automatic air vents of 15-mm dia., complete with 15-mm ball valves.
Each
12
6
Nos. 100mm dial pressure guage with syphon and pet cock.
Each
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Total Amount C/o to Summary……..
Sewage treatment plant:
Design and build the STP plant considering the following
parameters:
128
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Capacity 80KLD
Operating hours 20 hours
Flow rate 4.0 m3/hr
Treated sewage quality at the outlet of the Activated Carbon Filter will
be as follows:
PARAMETERS - VALUES – at the outlet of ACF
pH - 6.5 – 9.0
BOD < 20 ppm
TSS < 30 ppm
Oil & Gr ease < 10 ppm
129
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Bar Screen Chamber
No. Offered
- One No
Size
- 1.5 m x 0.5 m
Type
- Vertical barred with manual cleaning rake.
Space between bars
- 20 mm
Material of construction - MSEP
Oil Skimmer
Quantity offered
- One
Capacity - 10 LPH
Type - Motorized belt type
Size of the belt - 4” wide x 8 m – 10 m long
Material of construction - Belt: Oleophilic
Make of skimmer - Vens/Eqv.
Drive rating - 0.25 HP
Skimmed oil Tank - 50 liter
130
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Raw Sewage Transfer Pump
No. Offered - Two Nos(1W+1S)
Capacity - 4 m3/hr
Head - 10mwc
Type - Horizontal Centrifugal, Self Priming
Material of construction - CI
Drive rating - 1.0 HP
Make - Kirloskar/ Eqv.
Aeration System
FBBR Media
Quantity - 4 m3
Surface area - 400 m2/m3
Material of construction - PP
Make
- Energy Equipment
131
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Air Blowers
No. of air blowers - Two (1w + 1s)
Capacity - 69 m3/hr
-42 m3/hr for Aeration Tank
- 24 m3/hr for Equalization Tank
/ 3 m3/hr for Sludge Holding Tank
Head - 5 MWC
Motor rating - 5.0 HP
Blower make - Kay International or equivalent
Motor Make - Bharat Bijlee or equivalent
Coarse diffusers (Eq.T)
No. of Diffusers - 1 Lot
Material of construction - PVC
Type - Course Bubble
132
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Fine Bubble Diffusers for AT
Quantity Offered - 5 Nos.
Capacity of each - 10 m3/hr
Type - Fine Bubble
Material of construction - EPDM
Tube Settler-
Internals
Quantity Offered - One No.
Volume of media - 2 m3
Type
- Tube Dek Media
MOC
- PVC
Hypo Dosing System
Dosing Pump
No. offered
- One No
Capacity
- 0-4 liters/hr
Type - Electronic, diaphragm
Material of construction - PP
Make - Xeed or Eqv
133
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Dosing Tank
No. offered - One No
Volume - 100 ltrs
Material of construction - LDPE
Make - Sintex/Reno
Sludge Recirculation Pump
No. offered - Two (1w + 1s)
Capacity - 2.2 m3/hr
Head - 10 mwc
Type - Horizontal, centrifugal, self priming
Material of construction - CI
Drive rating - 1.0 HP
Make - Kirloskar or Eqv
Filter Feed Pumps
No. offered - Two Nos(1W+1S)
Capacity - 4.0 m3/hr
Head - 30 mwc
Type - Horizontal centrifugal
MOC - CI
Drive rating - 1.5 HP
Make - Kirloskar or Eqv.
134
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Pressure Sand Filter
Quantity - One
Service flow - 4.0 m3/hr
Diameter - 30”
Height - 72”
Filtering Media - Graded Sand & Pebbles
Material Construction - FRP
Valve type - Manually operated Multi port valve
Activated Carbon Filter
Quantity - One
Service flow - 4.0 m3/hr
Diameter - 24”
Height on straight - 72”
Filtering Media - Granular Sand, Pebbles & Activated Carbon
Material Construction - FRP
Valve type - Manually operated Multi port valve
135
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Sludge Handling System
Filter Press Feed Pumps
No. of pumps - Two Nos(1W+1S)
Capacity - 1.0 m3/hr
Head - 60 mwc
Type - Helical screw type
Material of construction - CI
Motor rating 1.0 HP
Poly Dosing System
Dosing Pump
No. offered - One No
Capacity - 0-4 liters/hr
Material of construction - PP
Make - Xeed/Eqv
Dosing Tank
No. offered - One No
Volume - 100 ltrs
Material of construction - LDPE
Make - Sintex/ Reno
136
Plumbing
Chennai Metro Rail Limited
Rate in INR
S.No
Total
Quantity
Unit
Description
In Figures
In Words
Per
Amount in
Rs….
Filter Press
Nos. offered - One
No of Batches - One
Type - Sliding, Recessed – Plate and Frame type
Size - 18” X 18”
Cake Holding Capacity - 70 Ltrs/Batch
No. of plates - 15 Nos.
No. of chambers - 14 Nos.
MOC of plates - PP
MOC of filter press - MS
Drive Rating - 1.0 HP
Make - Icura or Eqv
2
Nos In Plant Piping & Valves
Each
Quantity of Pipes - One lot
Material of construction Air line : - MS
Sewage lines : - UPVC
Quantity of valves - One lot
Material of construction - Air line : CI
Sewage line :
- Poly Propylene/CI
137
Plumbing
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO RAIL AMENITIES AT NANDANAM,CHENNAI
BILLS OF QUANTITIES
SCHEDILE - III - EXTERNAL FAÇADE AND ASSOCIATED WORKS
Rate in INR
S.No
Description of Items
Unit
Quantity
In Figures
In Words
Per
Amount
General Note : Refer Particular specifications and Technical specification, while quoting the rate for the respective items under this schedule. Also, the BOQ item
descriptions shall be read in conjunction with corresponding material specification and design criteria as specified in the tender specification as well as particular
specification, in addition to the detailed specification and standards specified in the corresponding codes and standards.
The quoted rate under this schedule shall be deemed to have considered Technical specification and particular specification.
A
Glazing & Glazed Doors
1.00 Unitized Glazing system
1.01 Unitized Glazing system with Vision, Vision on Spandrel panel
(System without Glass): Quote rate for complete system designing,
providing and fixing Unitized structural glazing vision panel & vision on
spandrel panel structurally held in position by Structural sealant and
factory fabricated with Aluminium frames of suitable size in order to
satisfy the structural design criteria specified in the Technical
specification. In general, the system comprising Aluminium anodized
extruded frames, HDG brackets, SS anchors & bolts and bolts, flashing
etc with Insulated Glass of 24 mm thick / Monolithic glass 6 mm thick .
Rate shall exclude the cost of supplying Glass, top hung window
hardwares and insulation, which will be measured and paid separately
under the respective item below. Rate shall include the cost of fixing of
Glass & Top hung window hardwares.
138
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
In Figures
In Words
Per
a
Vision Panel & Vision on Spandrel panel
Sqm
1,700
Sqm
b
Spandrel panel
Sqm
1,550
Sqm
1.02 Spandrel panel with ACP (System with ACP): Quote rate for complete Sqm
system designing, providing and fixing Unitized structural glazing
spandrel panel structurally held in position by Structural sealant and
factory fabricated with Aluminium frames of suitable size in order to
satisfy the structural design criteria specified in the Technical
specification. In general, the system comprising Aluminium anodized
extruded frames, HDG brackets, SS anchors & bolts and bolts, flashing
etc with Spandrel panel having Laminated sandwiched composite panel
of Alucobond or Alpolic or Knauf of Fameline make with approved colour
and shade (4 mm (0.5 + 3.0 + 0.5) ACP with 5000 series coil and 100%
virgin white core FR Grade - Class - B1). Refer Technical specification
for detailed specification of Laminated sandwiched composite panel,
which shall form part of this item. Rate shall include the cost for
Supplying and fixing of Laminated sandwiched composite panel with
Mineral core (ACP), sealant and etc complete. Refer Particular
Specification item - 22.01 - Provisional Qty
80
Sqm
1.03 Hardware for top hung window: Quote rate Extra rate over & above Each
the Semi unitized structural glazing item above for designing, providing
and fixing hardwares for top hung openable outward shutter as per
particular specification. Rate shall exclude cost of Glass and main frame,
but include cost of sub frame for shutter. Refer Particular Specification
item - 22.01
65
Each
139
Amount
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
2.01 Glass for Vision Panel, Spandrel panel, Vision on Spandrel panel Sqm
(Continuous Glazing, Strip window and Punched window) :
Insulated glass of 24 mm thick having 6 mm thick Reflective coated low
E glass on # 2 surface with Bluelite LH 37/24 of Asahi make or
Solarban 70 XL(2) Solar blue of PPG Make as outer pane and 12 mm
airgap and 6 mm thick glass uncoated clear as inner pane of same
make. Both panes are shall be heat strengthened.
3,250
In Figures
In Words
Per
Amount
2.00 Glass for Structural Glazing system: Quote rate for complete supply
of glass as per the options given below to the respective place to fix the
glass on the system as described above. Fixing the glass shall form part
of the system cost quoted under respective item in Schedule. Refer
attached Annexure - I for the glass performance requirement of 24 mm
thick (6 + 12 Air gap + 6) Double glazed unit (DGU), processing,
thickness and coating of glass, tint and other parametres like heat
treatment process etc. All panes of glass shall be heat strengthened.
Rate shall include the cost of necessary wastages, transporting etc
complete.
Mode of Measurement :
Glass on structural Glazing & others : Length and breadth of the
superficial area of the finished work shall be measured centre to centre
of the grooves on the external surface viewed externally correct to a
centimetre under the respective items. Areas shall be calculated in a
square metre correct to two places of decimal.
Attic stock Glass: Actual size of the glass shall be measured correct to a
centimetre. Areas shall be calculated in a square metre correct to two
places of decimal. Refer Particular Specification Item. No. 22.04
3.00 FRAMELESS GLAZING (POINT FIXED / SPIDER GLAZING) SYSTEM.
140
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
Sqm
3.01 System for Frameless glazing:
Quote rate for complete point fixed glazing system using 2 way spider /
GT Spiders as mentioned in Particular Specification including supplying
and fixing of 19.52 mm thick laminated glass having 10 mm thick as
outer panel and 8 mm thick as inner panel with interlayer of 1.52 mm
thick Sentry Glas (R) of DuPont make. Outer pane glass shall be
reflective coated glass - Spring (SC60/52) clear of Asahi make or
Equivalent glass of PPG make. Inner pane shall be heat soak tested
un coated clear glass and both panes shall be heat treated. Rate shall
include cost of spiders, Articulated bolts, PVC clear edge strip for all
exposed laminated edges and supply and fixing the Glass fin with
required size to satisfy the structural criteria, but excluding the cost of
door, which will be measured separately under the respective item. The
thickness of glass fin shall be 21.52mm thick (Min) laminated toughened
and heat soak tested as per specification.System to be designed to with
stand design wind pressure and other load parameters specified. Refer
Particular Specification Item. No. 22.02 & 22.05
75
141
In Figures
In Words
Per
Amount
Sqm
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
Sqm
4.00 System for Standard Sliding Door:
Quote rate for complete system for providing and fixing the Standard
sliding door with ES 200 STANDARD operator with ST Flex profile
with both side fixed panel of Dorma make or EC Drive operator with
ST Flex profile with both side fixed panel of Geze make with the required
structural support. Rate shall include the cost for supplying and fixing
13.52 mm thick laminated glass having 6 mm thick as outer panel and 6
mm thick as inner panel with interlayer of 1.52 mm thick PVB - sentry
Glas (R) of Dupont make. Outer pane glass shall be reflective coated
glass - Outer pane glass shall be reflective coated glass - Spring
(SC60/52) clear of Asahi make or Equivalent glass of PPG make. Inner
pane shall clear glass and both panes shall heat treated and inner pane
shall be heat soak tested. System to be designed to with stand design
wind pressure and other load parameters specified.
(Size of door including both side fixed panel - 4.3 x 3.0 M - 8 Nos). Refer
Particular Specification Item. No. 22.02 & 22.05
21
In Figures
In Words
Per
Amount
Sqm
5.00 Providing and fixing colour anodized aluminium Swing Door as part
of Glazing system and fabricated as per drawing and fixed at all
levels, elevations and heights by using aluminium frames for Doors
with thickness not less than 2.0mm of approved size subject to design
criteria. The door frame shall be fixed in to the adjoining mullion and
transom. All glass panels shall be fixed by using snap fit aluminium
colour anodized beading with special water proof cascades, Neoprene,
hardwares etc. complete, as directed. All aluminium sections shall be
63400 (H9) grade conforming to IS 8147, finished with AC25 grade
Architectural quality electrolytic colour anodic coating conforming to IS
1868 of approved colour and weight ratio joints mitered adjoined with
heavy duty aluminium pressure die cast cleats with fins to match the
sections of frames. The section unit weight per running meter is
subjected to tolerance on the wall thickness as per IS 6977/ Equivalent
BS.
142
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
5.01 Single Leaf door (1.00 x 2.40 M)
Sqm
11
Sqm
5.02 Double Leaf door (2.0 x 2.40 M)
Sqm
11
Sqm
In Figures
In Words
Per
Amount
Door shall be provided with necessary hardwares such as Consealed
Door closer - ITS 96 EN 2 - 4 (Opening restrict to 85 deg), Mortise dead
lock - Model No. 278 (both side key operation) SS forend and SS strike
plate (Suitable for both single / double leaf shutter) of Satin finish - Grade
SS 316, SS satin finish handle - TG9377- 25 (Angled Spacer) - 600 mm
long with back to back handle SS 316 grade, SS hinges (Minimum 4 Nos
/ Shutter) SS Door stoppers floor mounted, Door buffers etc. complete
and as directed. All Hardwares shall be Dorma / Kinlong / Geze Make.
Rate shall include the cost of supplying & fixing 13.52 mm thick
laminated glass for door having 6 mm thick as outer panel and 6 mm
thick as inner panel with interlayer of 1.52 mm thick - PVB of Dupont
make. Outer pane glass shall be reflective coated glass - Outer pane
glass shall be reflective coated glass - Spring (SC60/52) clear of Asahi
make or Equivalent glass of PPG make. Inner pane of un coated clear
glass heat soak tested but both panes shall be heat treated.
Refer Particular Specification Item. No. 22.01 & 22.05
Total Amount C/o to Summary……..
B
Windows and Louvers
143
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
6.00 Quote rate for providing and fixing aluminium extruded louver "Z" type
as described below and to be designed to with stand the design wind
pressure and as directed by Site Incharge / Consultant. Refer Particular
Specification item - 22.13
6.01 Support system to fix the Louver:
Kg
Quote rate for complete system having colour anodized aluminium box
frame, aluminium flat to receive the louvers and aluminium angles
around the louvered window to protect the water ingress through the
outer frame etc.and to be designed to with stand design wind pressure
specified.
Note : Weight will be considered only for the assembled frame part and
hence necessary wastage shall form part of the rate quoted.
6.02 Louver : Quote rate for complete colour anodized extruded profile louver Sqm
system to be designed to with stand design wind pressure specified. .
Rate shall include supply and fixing of Louver at the pitch specified
below, but excluding cost frame and other accessories, which shall part
of Item above.
Fixed Louver: Providing and fixing Storm proof louver "Z" type or
Aerofoil 100 made out of specially extruded aluminium with anodized
finish and as specified in Particular specifications and to be fixed with
pitch not less than 50 mm and overlapping shall be 25 mm as minimum
as shown in the drawing.
7.00 Quote rate for providing and fixing Luxalon SL - 4 Stringer with 84R Sqm
plain Louvers panel of Hunter Douglas make or equivalent Fameline
make with Luxacote finish and the louver system shall be designed to
with stand the design wind pressure. Rate shall include louver Panel,
Carrier, Carrier Splice, Panel Splice and accessories etc and as directed
by Site Incharge / Consultant. Refer Particular Specification item - 22.14 Provisional Qty
144
Quantity
In Figures
In Words
Per
300
Kg
25
Sqm
10
Sqm
Amount
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
Sqm
10
Sqm
6,650
Sqm
In Figures
In Words
Per
Amount
8.00 Quote rate for providing and fixing Aluminium Grille of Fameline make
with specified product code as below PVDF finish and the louver system
shall be designed to with stand the design wind pressure with pitch not
less than 75 mm as shown in the drawing. Louver thickness not less
than 0.8mm. Rate shall include louver Panel, aluminium frames,
aluminium end caps, aluminium brackets / clamps, SS anchors, bolts
and accessories etc and as directed by Site Incharge / Consultant. Refer
Particular Specification item - 22.15
8.01 Product code 2050RT
Total Amount C/o to Summary……..
C
Cladding works
9.00 Laminated sandwiched composite panel cladding and Associated works
9.01 Dry wall cladding : Providing and fixing the system to clad the Sqm
Laminated sandwiched composite panel of Alucobond or Alpolic or
Knauf of Fameline make with approved colour and shade (4 mm (0.5 +
3.0 + 0.5) ACP with 5000 series coil and 100% virgin white core FR
Grade - Class - B1) as per the specification described in Technical
specifications, on the external surface the external surface like column,
wall, jambs, sills, projected area, ceiling or any surface to any profile and
shape, horizontally, vertically, sloped, curved, circular etc complete.
145
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
9.02 Canopy / Pergola cladding: Designing, Providing and fixing the system Sqm
to clad the Laminated sandwiched composite panel of Alucobond or
Alpolic or Knauf of Fameline make with approved colour and shade (4
mm (0.5 + 3.0 + 0.5) ACP with 5000 series coil and 100% virgin white
core FR Grade - Class - B1) as per the specification described in
Technical specifications for Canopy and Pergola as per profile and
shape shown in the Drawing with necessary Hot dip Galvanized
Structural steel support to clad the ACP and all support to be designed to
withstand the Design wind pressure and the specification specified in
specifications etc complete. Main structural steel support will consider
under respective item separately. Also drip mould on the canopy shall be
cosidered at suitable location by using aluminium powder coated
channel matching to ACP.
1,900
In Figures
In Words
Per
Amount
Rate shall include the cost of supplying and fixing of Laminated
sandwiched composite panel (ACP), Non staining weather for Vertical &
horizontal joints in general the frame work for ACP cladding consists of
aluminium box frame with thickness of not less than 2.0mm with suitable
size of box frame to satisfying the design criteria with require nos of cleat
(spacing not more than 300 mm) having thickness not less than 2.0mm
to hold the ACP and HDG bracket with maximum 600mm c/c spacing
with minimum 2 Nos of Chemical Anchors etc, complete. All anchors,
bolts and screws shall be SS 316 grade of Hilti / Fischer make.
146
Sqm
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
10.00 Dry wall granite cladding: Quote rate for providing and fixing Granite Sqm
slab - Dry type fixing using Silver grey or approved shade granite slab
cladding the external surface on any surface to any profile and shape,
horizontally, vertically, sloped, curved, circular etc with approved shade
of Granite thickness not less than 25 mm thick and as per the sizes
shown in the Drawing etc complete and as directed and to be designed
to with stand design wind pressure specified.(On the Facade areas).
Granite shall be fixed with a groove of 6mm and to be filled with weather
sealant recessed by 2mm and the granite joints at corners shall be
chamfered as per Architectural requirements and granite shall be fixed in
the M.S / RCC wall with SS brackets and SS anchor bolts. Projection
upto 200 mm from the Main base structure either RCC / Masonry / steel.
Granite shall be fixed in the RCC / Masonry / steel with SS brackets and
SS anchor bolts. Granite basic cost of Rs.160/- per Sq.ft shall be
considered subject to compliance of the above specification.
Refer Particular Specification Item. No. 22.15.
500
In Figures
In Words
Per
Amount
Rate shall include the cost of supplying and fixing of Laminated
sandwiched composite panel (ACP), Drip mould, Non staining weather
for Vertical & horizontal joints in general the frame work for ACP cladding
consists of aluminium box frame with thickness of not less than 2.0mm
with suitable size of box frame to satisfying the design criteria with
require nos of cleat (spacing not more than 300 mm) having thickness
not less than 2.0mm to hold the ACP and HDG bracket with maximum
600mm c/c spacing etc, complete. All anchors, bolts and screws shall be
SS 316 grade of Hilti / Fischer make.
NOTE :- Main structural steel frame work for Canopy and Pergola to clad
the canopy with ACP shall consider under respective Items, but the
aluminium frame work and supporting bracket required for cladding shall
be part of the rate quoted under this item.
147
Sqm
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
In Figures
In Words
Per
Amount
Total Amount C/o to Summary……..
D
Roofing works
11.00 Design, Supply, Fabricate & Install Tensile roof structure using Ferrari Sqm
make Fabric of product code no. 702 T2 at all levels and elevation as per
drawing with the approved Profile. In General, the Fabric shall have
thickness not less than 0.55 mm with tensile strength 280/280
daN/5cm,Tear resistance of 30/28 daN - 750g/sqm and the Fabric shall
made out of PES HT 1100Dtex yarn with flame Retardancy to meet Euro
Class B-s2.do/EN 1350-1 and the Surface treatment shall be Floutop®
T2 (High concentration PVDF) having coating thickness not less than
240 µ and back side treatment shall be weldable PVDF (for a better
resistance to pollution of the back side of the fabric) with a minimum
Manufacturere warrenty of 10 yeras. Rate Shall include patterning, form
finding, cutting, welding & installation of fabric at site, primary steel in MS
of TATA,JINDAL or Equivalent make with YST 310 grade as minimum
including fabrication and erection of structural elements duly painted with
two coats of Pu based Metallic shade paint of approved shade over one
coat of epoxy primer to a total DFT of 230 Microns of Akzo noble or
Jotun make.
550
Sqm
Rate to include necessay tensining hardwares for fabric in SS inclusive
of Wireropes (GI hot dip galvanized cables), Swage ends & membrane
plates etc as per drawings and Manufacturers Specification.
148
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
In Figures
In Words
Per
Amount
Also, the quoted rate shall include the following :
(a) Bolts, Nuts, Washers, Spring washers, Welding, Gusset plates, base
plates, etc for the total area covered.
(c) Rate shall include Primer, epoxy coating , PU painting etc and
necessary wastage, lead, lift etc.
(d) Electricity, water, Staging, scaffolding, platform, ladders, chain pulley
blocks, ropes, Transport Charges, Loading and Unloading charges,
Storage of materials at site, Preparation of Temp.Storage arrangement
with Contractor's own risk on protection of materials (Free Space will be
provided for storage), etc required for erection work including cranes of
appropriate capacity, if needed.
(e) Preparation of shop drawings for approval of the Client / PMC /
Architect / Consultant including giving four sets of approved shop
drawings for their record.
e) Taxes as applicable including all other statutory approvals and
Compliance of Statutory requirements, Insurance policies etc.No labour
stay at site is allowed.
f) Necessary related civil works shall be executed in-coordination with
Civil agenecy based on the technical drawings submitted by Tensile
Vendor and approved.
Mode of Measurement - Fabric Coverage area as installed from end to
end shall be measured. No Folds and trims will be considered for
payment.
Total Amount C/o to Summary……..
E
Associated works for Glazing & Cladding
149
Stru. Glazing
Chennai Metro Rail Limited
S.No
Description of Items
Unit
Quantity
12.00 Insulation for Spandrel: Rock wool slab - 64 Kg/cum and having 'K' Sqm
value of 0.033 w/Mok - 50 mm thick wrapped with factory pressed Black
glass tissue and using 1.0mm thick Aluminium anodized tray with fold
alround to a height of 100mm minimum as thermal insulation to be fixed
behind Spandrel glass / Composite panel cladding area as mentioned.
All the edges between aluminium anodized tray and frame to be sealed
with Non-Staining weather silicon sealant of approved make. Refer
Particular Specification item - 22.01
1,650
Sqm
13.00 Quote rate for providing and applying Cold Bituminous coating Sqm
(Vapour barrier) on the External wall behind Composite panel / Granite
cladding area etc and as directed by Site Incharge / Consultant. Refer
Particular Specification item - 22.11
7,150
Sqm
14.00 Quote rate for providing and fixing in position Hot rolled structural steel Tone
Members / Sections at all levels. All MS members shall be painted with
anti corrosive, low VOC PU paint (metallic finish) with compatible primer
to a minimum film thickness of 75 microns and 2 coats of low VOC PU
paint of Akzonoble make and total dry film thickness 225 microns and as
directed by Site Incharge / Consultant. Refer Particular Specification item
- 22.12
15.00 Quote rate for providing and fixing 3M tape (Code No: 4412N Rmt
Translucent white) of approved type and pattern with minimum 50 mm
wide in addition to the Sealant at the desired location. 3M Tape shall be
provided as per manufacturer specification and methodology and as
directed by Site Incharge / Consultant.
16.00 Quote rate for providing and applying over the granite / stone surface Sqm
one coat of environment friendly silicon based Water Repellent as per
manufacturers specification with no undulations and waviness as per the
specification and as directed by Site Incharge / Consultant. Provisional
Qty
5
Tone
300
Rmt
500
Sqm
In Figures
In Words
Per
Amount
Total Amount C/o to Summary……..
150
Stru. Glazing
Chennai Metro Rail Limited
CHENNAI METRO RAIL LIMITED
PROPOSED CONSTRUCTION OF HEADQUARTERS AT CHENNAI
TENDER FOR EXTERNAL FAÇADE AND ASSOCIATED WORKS
ANNEXURE - I - GLASS SPECTRAL VALUES
Insulated Glass
24 mm Thick
Insulated Glass - 24 mm thick (Outer Pane - 6 mm + Air Gap 12 mm + 6 mm thick ) - Both panes are Heat strengthened. BLUE TINTED GLASS
1 Type of Glass
Details of the Glass
Colour / Appearance
2
Make
Product Code
Air Gap - 12 mm thick
Inner pane -6 mm thick
Heat strengthened
Outer pane - 6 mm thick
Heat strengthened
Optimum Performance
Outer
Pane
a
Option - I
-
Asahi
Bluelite
LH 37/24
Blue
b
Option - II
-
PPG
Solarban 70
XL(2) Solar blue
Blue
c
Option - III
Asahi
Green Vision
LN 34/22
Green
d
Option - IV
PPG
Solarban R100
(2) Atlantica
Green
Green
-
Inner Pane
Type of
Coating
Un coated
Neutral of
similar make
Un coated
Neutral of
similar make
Un coated
Neutral of
similar make
Un coated
Neutral of
similar make
Reflective
Low e
coating
Reflective
Low e
coating
Reflective
Low e
coating
Reflective
Low e
coating
151
Surface of
Coating
Place of
Coating
Place of
Processing
#2
As per
Manufacturer
India
37%
7%
#2
As per
Manufacturer
India
39%
#2
As per
Manufacturer
India
#2
As per
Manufacturer
India
Visual Light Light Ref Light Ref
Trans
(Ext)
(Int)
Solar
Factor
Sha.C
U Value
(European)
15%
0.24
0.28
1.70
7%
12%
0.21
0.24
1.50
34%
19%
13%
0.22
0.25
1.70
32%
20%
13%
0.19
0.22
1.60
Annex - I - Glass perfomanc
Chennai Metro Rail Limited
CONSTRUCTION OF METRO HEADQUARTERS BUILDING AND OTHER METRO RAIL AMENITIES AT NANDANAM,CHENNAI
BILLS OF QUANTITIES
SCHEDULE - IV - Electrical Works
Rate in INR
S.No Quantity
Unit
Description of Item / Work
Per
In Figures
Amount in Rs…..
In Words
ELECTRICAL WORKS
SECTION-A: TRANSFORMERS AND HT BREAKERS & LT BUSDUCTS
All installation works should be as complete and as directed by Employer /
Employer's representative.
The rate includes necessary connected minor civil works if required and necessary
supports as required at site. No extra payment will be made for the same.
1
1
1
No
Ring Main Switichgear (Indoor) - 11KV
Design, Supply, Installation, Testing and Commissioning of OUTDOOR Weather & Dust
proof Type, floor mounting, free standing 11kV Ring Main Gear unit made out of M.S
sheet steel clad dust and vermin proof with 630A Copper Busbars, Interconnections,
necessary protections, Measuring Instruments, Indicating Instruments, Protection Relays,
CTs, PT with necessary control fuses/MCBs, Termination arrangements for Incoming and
Outgoing Cable of 11 kV 3Core 300 Sq mm XLPE Alu.Armoured earthed cable, Terminal
Blocks, Earthing,Powder coated painting, Sign writing and Base channels etc., with
complete all accessories as required for satisfactory operations and as per the detailed
Technical Specifications enclosed and as per EB Requirements comprising of the
INCOMER (2 Sources) :
11kV, 630A, 500MVA LOAD Break Switch (Air Break) with necessary required
accessories - 2Nos
OUTGOING :
11kV, 630A, 500MVA VACCUM Circuit Breaker with necessary required accessories :
1No
The RMG panel shall be manufactured as required by the electrical authorities and
approval shall be obtained including testing & commissioning and any additional features
required by the supply authorities shall be carried out at no extra cost.
152
No
Electrical
Chennai Metro Rail Limited
2
3
4
1
1
2
5
250
6
110
No
Design, supply, installation, testing and commissioning of 11KV 630A, 500MVA, 26.2kA
VCB Breaker HT outdoor single panel board with all accessories and all metreing
protection for satisfactory operation and as required by the statutory Electrical authorities
as per the detailed specification and drawing enclosed.
No
No
Design, supply, installation, testing and commissioning of VCB 4 panel, comprising of
1No. of 11KV, 630A, 500MVA, 26.2kA VCB as incomer and 3 Nos of 11KV, 630A,
500MVA, 26.2kA VCB as outgoings, HT Indoor 4 Panel VCB Board with all accessories
and all metering, protection for satisfactory operation and as required by the statutory
Electrical authorities as per the detailed specification and SLD enclosed. The panel shall
be extendable at both sides.
No
Nos
HT CABLES
Design, supply, laying, testing and commissioning of 3 core 300 sqmm 11KV, XLPE
Aluminium conductor individual core screened, flat steel strip armoured, PVC sheathed
RMT cable inside the building in the prepared trench/under ground (From 11KV RMG to outdoor
HT single VCB panel and outdoor single VCB to HT indoor VCB 4 panel)
RMT
7
a
Design, supply, installation, testing and commissioning of 2000KVA, 11kV/433V ONAN,
outdoor type, Oil cooled Transformer with on load tap changer & RTCC panel as per the
detailed specification enclosed. Transformer Protection relays should be provided at each
Transformer such as Transformer Buchholz relay, restricted earth fault relay,OLTC surge
relay, Oil temperature relay, winding temp relay, Magnetic oil level gauge, Pressure
release valve, Auxiliary relays as per standards. The transformer shall be provided with
cable termination box on HT side to terminate 3 core 240 Sqmm XLPE cable and suitable
for terminating sandwich type copper busduct on LT side 3200A Amps rating all as per the
detailed specification and drawing enclosed. (THE TRANSFORMER SHALL BE
SUPPLIED WITH FIRST FILL OF OIL)
Design, supply, laying, testing and commissioning of 3 core 240 sqmm 11KV, XLPE
Aluminium conductor individual core screened, flat steel strip armoured, PVC sheathed
cable inside the building in the prepared trench/under ground (From 11KV HT indoor VCB
panel to transformer)
Nos
RMT
RMT
HT Terminations:
2
No
Design, supply, termination, testing and commissioning of OUTDOOR type termination kit
and accessories suitable for 11KV, 3 core 300 Sqmm XLPE cable.
153
No
Electrical
Chennai Metro Rail Limited
b
6
No
Design, supply, termination, testing and commissioning of INDOOR type termination kit
and accessories suitable for 11KV, 3 core 300 Sqmm XLPE cable.
No
c
2
No
Design, supply, termination, testing and commissioning of OUTDOOR type termination kit
and accessories suitable for 11KV, 3 core 240 Sqmm XLPE cable.
No
d
4
No
Design, supply, termination, testing and commissioning of INDOOR type termination kit
and accessories suitable for 11KV, 3 core 240 Sqmm XLPE cable.
No
8
1
No
Design, supply, erection, testing and commissioning of Battery Charger 110V DC 100 AH
Trip unit combined with trickle & boost charge facilities with battery bank(SMF) &
Distribuition Board and as per the detailed specification / drawing enclosed.
No
9
120
Providing 2.4 mtr height weldmesh fencing with vertical angle iron supports spaced as
required, 2M X 2.4M double side gate with hinged lock and key, painting with one coat red
oxide and two coat aluminium paint, levelling yard with sand cussain of 150mm depth and
Sq.mtr
40mm blue metal of 150mm depth above grade level, Construction of 300mm high
Curbwall all around Covering the Switchyard / transformer yard area as required and
Necessary MS channel / angle iron support shall be provided.
Sq.mtr
LT BUSDUCTS
10
50
Design, supply, erection, testing and commissioning of 3200 Amps outdoor sandwich type
copper 4Pole busduct and with suitable support from ceiling as per the detailed
specification enclosed. The busduct should be with straight run, 90 deg. horizontal and
Vertical bends., busbar trunking fittings (elbow, tees, end End (Cable) feed Box, end
RMT covers, horizontal fixing devices,etc.) The horizontal runs of busbar trunking system shall
be supported by hangers at every 2 metre. Vertical runs of busbar trunking system shall
be supported by hangers not more than 4m apart. The busduct shall run from
Transformer secondary to MPCC. The bus duct shall be fabricated as per the detailed
specification enclosed.
154
RMT
Electrical
Chennai Metro Rail Limited
60
Design, supply, erection, testing and commissioning of 3200 Amps indoor sandwich type
copper 4Pole busduct and with suitable support from ceiling as per the detailed
specification enclosed. The busduct should be with straight run, 90 deg. horizontal and
Vertical bends., busbar trunking fittings (elbow, tees, end End (Cable) feed Box, end
RMT covers, horizontal fixing devices,etc.) The horizontal runs of busbar trunking system shall
be supported by hangers at every 2 metre. Vertical runs of busbar trunking system shall
be supported by hangers not more than 4m apart. The busduct shall run from
Transformer secondary to MPCC. The bus duct shall be fabricated as per the detailed
specification enclosed.
RMT
30
Design, supply, erection, testing and commissioning of 2500 Amps indoor sandwich type
copper 4Pole busduct and with suitable support from ceiling as per the detailed
specification enclosed. The busduct should be with straight run, 90 deg. horizontal and
Vertical bends., busbar trunking fittings (elbow, tees, end End (Cable) feed Box, end
RMT covers, horizontal fixing devices,etc.) The horizontal runs of busbar trunking system shall
be supported by hangers at every 2 metre. Vertical runs of busbar trunking system shall
be supported by hangers not more than 4m apart. The busduct shall run from DG sync.
panel to MPCC panel. The bus duct shall be fabricated as per the detailed specification
enclosed.
RMT
13
30
Design, supply, erection, testing and commissioning of 1600 Amps indoor sandwich type
copper TPN busduct and with suitable support from ceiling as per the detailed specification
enclosed. The busduct should be with straight run, 90 deg. horizontal and Vertical bends.,
busbar trunking fittings (elbow, tees, end End (Cable) feed Box, end covers, horizontal
RMT
fixing devices,etc.) The horizontal runs of busbar trunking system shall be supported by
hangers at every 2 metre. Vertical runs of busbar trunking system shall be supported by
hangers not more than 4m apart. The busduct shall run from MPCC panel to APFC
panel. The bus duct shall be fabricated as per the detailed specification enclosed.
RMT
14
4
Sets
Design, supply, erection, testing and commissioning of 3200 Amps flexible joints suitable
for sandwich type 4P copper bus duct at end terminals including all accessories.(RYBN=1
set)
Sets
15
4
Sets
Design, supply, erection, testing and commissioning of 2500 Amps flexible joints suitable
for sandwich type 4pole copper bus duct at end terminals including all
accessories.(RYBN=1 set)
Sets
16
2
Sets
Design, supply, erection, testing and commissioning of 1600 Amps flexible joints suitable
for sandwich type TPN copper bus duct at end terminals including all
accessories.(RYBN=1 set)
Sets
11
12
155
Electrical
Chennai Metro Rail Limited
17
1
Sets
Design, supply, erection, testing and commissioning of 3200 Amps Phase cross
changeover box suitable for sandwich type 4P copper bus duct including all accessories.
(it will operate in case of phase change over is required as per site condition) (RYBN=1
set)
18
1
Sets
Design, supply, erection, testing and commissioning of 2500 Amps Phase cross
changeover box suitable for sandwich type 4pole copper bus duct including all
accessories. (it will operate in case of phase change over is required as per site condition)
(RYBN=1 set)
Sets
Sets
Design, supply, erection, testing and commissioning of 1600 Amps Phase cross
changeover box suitable for sandwich type TPN copper bus duct including all accessories.
(it will operate in case of phase change over is required as per site condition) (RYBN=1
set)
Sets
19
1
Sets
Total Amount C/o to Summary……..
SECTION – B : LT PANEL BOARDS
All installation works should be as complete and as directed by Employer /
Employer's representative.
For all Panel boards in section-B, the rate includes necessary connected minor civil
works if required and necessary supports as required at site. No extra payment will
be made for the same.
As mentioned in SLD, MFM shall be provided in all panels incomer and MPCC
panel's outgoings with necessary CTs, PTs, control switches like MPCB, MCB,
ELCB, RCBOs and all other necessary accessories as per the specification and
drawing. All the meters should have RS 485 modbus output for BMS integration and
also All ACB & MCCB should have dedicated potential free contacts (ON/OFF) &
TRIP status to monitor mentioned status from BMS system
156
Electrical
Chennai Metro Rail Limited
i) All ACB feeders shall be draw out type, MCCB feeders shall be fixed type
ii) Above 250A rated breaker should be provided with Microprocessor based
release and 250A & below the rated breaker should be provided with thermal
magnetic release.
iii) All panels should comply with IEC 61439-1&2.
iv) All breakers should have minimum kA rating as mentioned in BOQ. On non
availability of specified braker, immediate higher rating breaker must be provided.
v) All live parts should be shrouded by FRP transparent polycarbonate sheet of 2mm
thick
vi) All panels incoming breaker and outgoing breakers of MPCC panel should have
over current, Time adjustable short circuit and earth fault releases (LSIG).
vii) All LT panels (Except MPCC panel) outgoing breakers should have over current
and Time adjustable short circuit (LSI).
viii) All panels incoming feeder and outgoing feeders of MPCC panel should have
Multi function meter with RS 485.
ix) Surge Arrester to be provided in all panels incoming feeder
x) All meters should be digital type and all relays should be numerical type.
20
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed APFC PANEL with Harmonic filters .
Incoming
1600A, 50KA, TPN MDO ACB with all connected accessories - 1No. as incomer.
Instrumental compartment
Multi function meter, Voltmeter and Ammeter with selector switches, R,Y,B and
On/Off/Trip indication lamp, Control fuses/MCBs, necessary CTs, PTs, PF meter etc. as
per the specification and SLD.
1 No. Intelligent Automatic Power Factor Controller Relay and Voltage & Power Factor
Monitoring Relay can control up to 12 Capacitor Banks with LED indiication for Alarm
code, No.of Banks selected, PF status-Lead / Lag / Unity, Auto & Manual Mode, DIP
Switches selection for No. of Banks / Time Relay and Bank ratios etc., with control wiring
and all other required necessary accessories.
Outgoing: Total 700 KVAR
2 Sets of 150 KVAR Capacitor (6 x 25 KVAR) with suitable 630A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars, control
wiring with all other required necessary accessories.
157
Electrical
Chennai Metro Rail Limited
2 Sets of 100 KVAR Capacitor (4 x 25 KVAR) with suitable 315A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars, control
wiring with all other required necessary accessories.
2 Sets of 50 KVAR Capacitor (2 x 25 KVAR) with suitable 160A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars,
contrring with all other required necessary accessories.
3 Sets of 25 KVAR Capacitor (1 x 25 KVAR) with suitable 63A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars,
contrring with all other required necessary accessories.
2 Set of 10 KVAR Capacitor (1 x 10 KVAR) with suitable 32A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars,
contrring with all other required necessary accessories.
1 Set of 5 KVAR Capacitor (1 x 5 KVAR) with suitable 32A TP MCCB 50KA with
SSR(Thyristor), High speed fuses for SSR, control MCBs, On & Off Indicating Lamp, Push
Buttons, Ammeter with Selector switch, CTs etc.,Including interconnection busbars,
contrring with all other required necessary accessories.
Each KVAR capacitor bank in a separate compartment with necessary ventilation
arrangemnts or weld mesh arrangements as required by the Electrical Authorities .
With necessary copper busbars, interconnections, providing Ammeter with selector
switches, phase indication lamp, control fuse and switch control, PFmetre etc. with RS 485
BMS integration as per the specification.
Capacitor Panel - 700KVAR
2
Nos
1600 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity
of phase busbars
Nos
CAPACITOR PANEL:
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed POWER FACTOR CORRECTION CONTROL PANEL with Harmonic reactor.
Incoming
125A, 50kA, TPN MCCB with all connected accessories - 1No. as incomer.
Instrumental compartment
158
Electrical
Chennai Metro Rail Limited
Voltmeter and Ammeter with selector switches, R,Y,B and On/Off/Trip indication
lamp,Control MPCB/RCBO/ELCB/MCBs, necessary CTs, PTs, surge protection device etc.
for each incomer as per the specification and SLD.
Outgoing: Total 40 KVAR
1 Set of 40 KVAR Capacitor (2 x 20 KVAR ) with SSR (Thyristor), High speed fuses for
SSR, control fuses, On & Off Indicating Lamp, Push Buttons, Ammeter with Selector
switch etc.,Including interconnection busbars, control wiring with all other required
necessary accessories.
Capacitor bank (with 7% series reactor) in a separate compartment with necessary
ventilation arrangemnts with wire mesh arrangements as required by the Electrical
Authorities .
2
Nos.
Nos.
CAPACITOR PANEL
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. UTILITY LIGHTING PANEL
21
Incoming
100A 4P MCCB 25kA with all connected accessories – 1No. as incomer
Outgoing
32A 4P MCCB 25kA - 5 Nos.
32A 4P MCCB 25kA with 4P contactor, timer (24hr.) and auto/manual selector switch with
all other necessary accessories. - 3Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.all MCCBs should have
one (spare) potential free contactor, Combined digital type Multi function meter with RS485
port. with Modebus TCP provisions, as per the specification and drawings.
1
Nos
100 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity of
phase busbars.
159
Nos
Electrical
Chennai Metro Rail Limited
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. UTILITY PANEL
Incoming
400A 4P MCCB 36kA with all connected accessories – 1No. as incomer
Outgoing
200A 4P MCCB 36kA - 2 Nos.
22
125A 4P MCCB 36kA - 2 Nos.
100A 4P MCCB 36kA - 1 No.
63A 4P MCCB 36kA - 3 Nos.
32A 4P MCCB 36kA - 2 Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter (in both incoming & outgoing feeder), Surge protection device,
ON,OFF,TRIP, phase indication lamps with control MCB/MPCB/ELCB/RCBOs, and
necessary CTs, PTs etc.all MCCBs should have one (spare) potential free contactor,
Combined digital type Multi function meter with RS485 port. with Modebus TCP
provisions, as per the specification and drawings.
1
23
Nos
400 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. PLUMBING PANEL
Incoming
200A 4P MCCB 25kA with all connected accessories – 1No. as incomer
Outgoing
100A TPN MCCB 25kA - 2 Nos.
63A TPN MCCB 25kA - 7 Nos.
32A TPN MCCB 25kA - 5 Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.all MCCBs should have
one (spare) potential free contactor, Combined digital type Multi function meter with RS485
port. with Modebus TCP provisions, as per the specification and drawings.
160
Electrical
Chennai Metro Rail Limited
1
Nos
200 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. COOLING TOWER & PUMP PANEL
24
Incoming
400A 4P MCCB 36kA with all connected accessories – 1No. as incomer
Outgoing
63A TPN MCCB 36kA - 20 Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.all MCCBs should have
one (spare) potential free contactor, Combined digital type Multi function meter with RS485
port. with Modebus TCP provisions, as per the specification and drawings.
1
25
Nos
400 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. VENTILATION PANEL-1.
Incoming
630A 4P MCCB 36 kA with all connected accessories – 1No. as incomer
Outgoing
63A TPN MCCB 36 kA - 16 Nos.
32A TPN MCCB 36 kA - 7 Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.all MCCBs should have
one (spare) potential free contactor, Combined digital type Multi function meter with RS485
port. with Modebus TCP provisions, as per the specification and drawings.
161
Electrical
Chennai Metro Rail Limited
1
Nos
630 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. VENTILATION PANEL-2.
Incoming
630A 4P MCCB 36 kA with all connected accessories – 1No. as incomer
Outgoing
250A TPN MCCB 36 kA - 2 Nos
63A TPN MCCB 36 kA - 5 Nos.
26
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
1
27
Nos
630 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. SUB VENTILATION PANEL
Incoming
250A 4P MCCB 25 kA with all connected accessories – 1No. as incomer
Outgoing
63A TPN MCCB 25 kA - 5 Nos.
32A TPN MCCB 25 kA - 23 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
162
Electrical
Chennai Metro Rail Limited
1
Nos
250 Amps TPN copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. AHU PANEL - 1.
Incoming
125A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 4 Nos.
32A 4P MCCB 16kA - 2 Nos.
28
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
29
Nos
125Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. AHU PANEL - 2.
Incoming
160A 4P MCCB 25kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 25kA - 2 Nos.
32A 4P MCCB 25kA - 4 Nos.
163
Electrical
Chennai Metro Rail Limited
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
30
Nos
160Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. AHU PANEL - 3
Incoming
250A 4P MCCB 25kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 25kA - 2 Nos.
32A 4P MCCB 25kA - 10 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
164
Electrical
Chennai Metro Rail Limited
1
Nos
250Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. AHU PANEL - 4
Incoming
31
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 2 Nos.
32A 4P MCCB 16kA - 3 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
32
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. AHU PANEL - 5
Incoming
160A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 6 Nos.
32A 4P MCCB 16kA - 5 Nos.
165
Electrical
Chennai Metro Rail Limited
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
33
Nos
160Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. UPSB- 1
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
32A 4P MCCB 16kA - 10 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
166
Electrical
Chennai Metro Rail Limited
1
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. UPSB- 2,3,4 & 5
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
32A 4P MCCB 16kA - 9 Nos.
34
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
4
35
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. PSB- 1 & 5
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
32A TPN MCCB 16kA - 5 Nos.
167
Electrical
Chennai Metro Rail Limited
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
2
36
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. PSB- 2 & 3
Incoming
125A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 6 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
168
Electrical
Chennai Metro Rail Limited
2
Nos
125Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. PSB- 4
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 6 Nos.
37
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
38
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. PSB- 6
Incoming
160A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
63A 4P MCCB 16kA - 6 Nos.
169
Electrical
Chennai Metro Rail Limited
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
39
Nos
160Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. LSB -1
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
32A 4P MCCB 16kA - 7 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
170
Electrical
Chennai Metro Rail Limited
1
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. LSB - 2,3,4,5 & 6
40
Incoming
100A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
32A 4P MCCB 16kA - 6 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
5
41
Nos
100Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. UPS INCOMING PANEL (For Safety system)
Incoming
63A 4P MCCB 16kA with all connected accessories – 2Nos. as incomer
Outgoing
171
Electrical
Chennai Metro Rail Limited
63A 4P MCCB 16kA - 2 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
42
Nos
63Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. (For safety system)
Incoming
63A 4P MCCB 16kA with all connected accessories – 2No. as incomer
Outgoing
32A 4P MCB 10kA - 4 Nos.
20A 4P MCB 10kA - 16 Nos.
With necessary Copper busbars, interconnections, providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings. The panel should be
suitable for parellel operation for 2 nos of UPS system.
172
Electrical
Chennai Metro Rail Limited
1
Nos
63Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity of
phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. MAIN LIFT PANEL
43
Incoming
315A 4P MCCB 36 kA with all connected accessories – 1 No. as incomer
Outgoing
125A TPN MCCB 36 kA - 5 Nos.
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.all MCCBs should have
one (spare) potential free contactor, Combined digital type Multi function meter with RS485
port. with Modebus TCP provisions, as per the specification and drawings.
1
44
Nos
315Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. SUB LIFT PANEL -1
Incoming
125A 4P MCCB 25 kA with all connected accessories – 2 Nos. as incomer
Outgoing
63A TPN MCCB 36 kA - 4 Nos.
32A TPN MCCB 36 kA - 2 Nos.
With necessary Copper busbars, interconnections, electrical / mechanical interlock
arrangements between both the incomers and providing combined digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical arrangements. All MCCBs should have one (spare)
potential free contactor, Combined digital type Multi function meter with RS485 port. with
Modebus TCP provisions, as per the specification and drawings.
173
Electrical
Chennai Metro Rail Limited
The panel should be suitable for changeover the power automatically from source-1 (I/C-1)
to source-2 (I/C-2) and vise versa while power failure happened at any one source with
necessary contactors and all required accessories. And also provide the selector switch for
selecting auto / manual mode. In normal case the power shall be feed from source-1.
1
Nos
125Amps 4P Copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
METERING PANEL BOARD (For residential block)
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. EB METERING PANEL (For type A)
45
Incoming
250A TPN FSU with connected accessories – 1No. as incomer with lock and sealing
fecility.
Outgoings
3 sets of 100A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 100A TPN 16kA MCCB with all other necessary accessories.
14 sets of 63A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 63A TPN 10kA MCB with all other necessary accessories.
3 sets of 32A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 32A TPN 10kA MCB with all other necessary accessories.
Cable Entry : Top
Cable Gland Plate : 3mm thick MS sheets
Energy meters for individual consumers shall be purchased by the consumer/Promoter at
his own cost.These meters shall be got tested and certified by Electrical Inspectorate of
TNEB.
Note : All switch boards shall be fabricated as per the detailed specification enclosed.
Suitable size outgoing cable chamber and extra busbars should be provided for
connecting the number of outgoing cables and refer also the Schematic drawing.
1
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
174
Nos
Electrical
Chennai Metro Rail Limited
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. DG METERING PANEL (For type A)
46
Incoming
250A TPN MCCB with connected accessories – 1No. as incomer
Outgoings
3 sets of 100A TPN 16kA MCCB, Energy (which is having the parameters of KWH, A& V)
meter with RS485 port and 100A 4P 16kA ATS with Auto/Manual selector switch and all
other necessary accessories.
14 sets 63A TPN 10kA MCB, Energy (which is having the parameters of KWH, A & V)
meter with RS485 port and 63A 4P10kA ATS with Auto/Manual selector switch and all
other necessary accessories.
3 sets 32A TPN 10kA MCB, Energy (which is having the parameters of KWH, A & V)
meter with RS485 port and 32A 4P10kA ATS with Auto/Manual selector switch and all
other necessary accessories.
Cable Entry : Top
Cable Gland Plate : 3mm thick MS sheets
With necessary copper busbars, interconnections, providing energy meter for DG power
reading, ON,OFF,TRIP, phase indication lamps with control MCB/MPCB/ELCB/RCBOs &
necessary CTs, PTs etc. and all as per the detailed specification and drawings enclosed.
1
47
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, testing and commissioning of cubicle type floor mounting switch board
comprising of the following, the board shall be fabricated as per the detailed specification
enclosed. LIFT PANEL (For residential block)
Incoming
100A TPN MCCB 16kA with all connected accessories – 1No. as incomer
Outgoing
63A TPN MCCB 16 kA - 3 Nos.
32A TPN MCCB 16 kA - 2 Nos.
175
Electrical
Chennai Metro Rail Limited
With necessary Copper busbars, interconnections, providing Combined Digital type
Mulitifunction Meter, Surge protection device, ON,OFF,TRIP, phase indication lamps with
control MCB/MPCB/ELCB/RCBOs, and necessary CTs, PTs etc.and both the incomer's
shall be interlocked with mechanical and electrical arrangements by hardware control
wiring. All MCCBs should have one (spare) potential free contactor, Combined digital type
Multi function meter with RS485 port. with Modebus TCP provisions, as per the
specification and drawings.
2
Nos
100Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. EB METERING PANEL-1 (For type B)
48
Incoming
250A TPN FSU with connected accessories – 1No. as incomer with lock and sealing
fecility.
Outgoings
2 sets of 100A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 100A TPN 16kA MCCB with all other necessary accessories.
17 sets of 32A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 32A TPN 10kA MCB with all other necessary accessories.
Cable Entry : Top
Cable Gland Plate : 3mm thick MS sheets
Energy meters for individual consumers shall be purchased by the consumer/Promoter at
his own cost.These meters shall be got tested and certified by Electrical Inspectorate of
TNEB.
Note : All switch boards shall be fabricated as per the detailed specification enclosed.
Suitable size outgoing cable chamber and extra busbars should be provided for
connecting the number of outgoing cables and refer also the Schematic drawing.
1
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
176
Nos
Electrical
Chennai Metro Rail Limited
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. DG METERING PANEL-1 (For type B)
49
Incoming
250A TPN MCCB with connected accessories – 1No. as incomer
Outgoings
2 sets of 100A TPN 16kA MCCB, Energy (which is having the parameters of KWH, A & V)
meter with RS485 port and 100A 4P 16kA ATS with Auto/Manual selector switch and all
other necessary accessories.
17 sets of 32A TPN 10kA MCB, Energy (which is having the parameters of KWH, A & V)
meter with RS485 port and 32A 4P 10kA ATS with Auto/Manual selector switch and all
other necessary accessories.
Cable Entry : Top
Cable Gland Plate : 3mm thick MS sheets
With necessary copper busbars, interconnections, providing energy meter for DG power
reading, ON,OFF,TRIP, phase indication lamps with control MCB/MPCB/ELCB/RCBOs &
necessary CTs, PTs etc. and all as per the detailed specification and drawings enclosed.
1
50
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. EB METERING PANEL-2 & 3 (For type B)
Incoming
250A TPN FSU with connected accessories – 1No. as incomer with lock and sealing
fecility.
Outgoings
3 sets of 63A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 63A TPN 10kA MCB with all other necessary accessories.
17 sets of 32A TP rewireable cutout with neutral link, Space Provision for 3phase EB
metering and 32A TPN 10kA MCB with all other necessary accessories.
Cable Entry : Top
Cable Gland Plate : 3mm thick MS sheets
177
Electrical
Chennai Metro Rail Limited
Energy meters for individual consumers shall be purchased by the consumer/Promoter at
his own cost.These meters shall be got tested and certified by Electrical Inspectorate of
TNEB.
Note : All switch boards shall be fabricated as per the detailed specification enclosed.
Suitable size outgoing cable chamber and extra busbars should be provided for
connecting the number of outgoing cables and refer also the Schematic drawing.
2
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have half the capacity of
phase busbars.
Nos
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. DG METERING PANEL-2 & 3 (For type B)
51
Incoming
250A TPN MCCB with connected accessories – 1No. as incomer
Outgoings
3 sets of 63A TPN 10kA MCB, Energy (which is having the parameters of KWH, A &
meter with RS485 port and 63A 4P 10kA ATS with Auto/Manual selector switch and
other necessary accessories.
18 sets of 32A TPN 10kA MCB, Energy (which is having the parameters of KWH, A &
meter with RS485 port and 32A 4P 10kA ATS with Auto/Manual selector switch and
other necessary accessories.
Cable Entry : Top
V)
all
V)
all
Cable Gland Plate : 3mm thick MS sheets
With necessary copper busbars, interconnections, providing energy meter for DG power
reading, ON,OFF,TRIP, phase indication lamps with control MCB/MPCB/ELCB/RCBOs &
necessary CTs, PTs etc. and all as per the detailed specification and drawings enclosed.
2
52
Nos
250 Amps 4P copper busbars:- All the neutral busbars shall have same the capacity
of phase busbars.
Nos
DG PANEL (For Residential block -A & B)
178
Electrical
Chennai Metro Rail Limited
Design, Supply, Installation, testing and commissioning of cubicle type floor mounting
switch board comprising of the following, the board shall be fabricated as per the detailed
specification enclosed. DG PANEL (For type A&B)
1 No. of 1250 Amps 4 Pole 50kA electrical draw out type Air circuit breaker with earth
fault relay and shunt release shutter assembly, door interlock and all other accessories.
Instrumental compartment
Digital multi function meter (Similar to SOCOMEC - Diris A40) with RS 485, Ammeter,
Voltmeter, Instantaneous over current, earthfault relay (2 O/C+ 1 E/F), necessary CTs,
PTs, control MPCB/MCB/ ELCB/RCBOs, RYB Indication lamps and “ON/OFF/Trip/Rest"
indicating lamp, voltage surge protection with emergency lockable push buttons and also
refer the specification and SLD.
OUTGOINGS
250A TPN MCCB 36 KA - 6 nos
All the Outgoing feeder shall be ON/OFF/Trip indication lamps with emergency lockable
push buttons, all MCCBs should have one (spare) potential free contactor, Combined
digital type Multi function meter (Similar to SOCOMEC - Countis E53) with LAN port. Each
LAN port of the meter connected through individual cable., The rate shall inclusive of
necessary CTs, control switches, Front operating handles etc., All switch boards shall be
fabricated as per the detailed specification enclosed. Suitable size outgoing cable chamber
and extra busbars should be provided for connecting the number of outgoing cables as per
the schematic drawing.The board shall be fabricated for future extension of the panel
board.
1
No.
1250 Amps 4P copper busbars:- All the neutral busbars shall have same the
capacity of phase busbars.
No.
Total Amount C/o to Summary……..
SECTION-C: RAISNG MAINS AND TAP-OFF BOXES
All installation works should be as complete and as directed by Employer /
Employer's representative.
The rate includes necessary connected minor civil works if required and necessary
supports as required at site. No extra payment will be made for the same.
179
Electrical
Chennai Metro Rail Limited
53
1250A Copper conductor Sandwich type Rising Main for Lighting and Raw Power
50
Supply, Installation, Testing and Commissioning of 4P, 4Wire, 1250A Copper condutor
sandwich type Rising Mains with 50X6 mm (2) External Copper earthing, Plug in Point at
RMT every 500mm, Fire Barriers at every Floor Crossing : Indoor : 36kA
The product shall be based on Temp. rise & not on current density and as per techical
specification and drawing.
RMT
2
Nos
1250A End Feed Unit with 36kA 4P ACB
Nos
2
Nos
End Covers
Nos
35
Nos
Mounting Brackets (Recommended 1No. per 1.5 Mtrs)
Nos
2
Nos
250A Tap Off Box with 25kA 4P MCCB
Nos
4
Nos
160A Tap Off Box with 25kA 4P MCCB
Nos
8
Nos
125A Tap Off Box with 25kA 4P MCCB
Nos
22
Nos
100A Tap Off Box with 25kA 4P MCCB
Nos
180
Electrical
Chennai Metro Rail Limited
54
400A Copper conductor Sandwich type Rising Main for UPS Power
50
Supply, Installation, Testing and Commissioning of 4P, 4Wire, 400A Copper condutor
sandwich type Rising Mains with 25X3 mm (2) External Copper earthing, Plug in Point at
RMT every 500mm, Fire Barriers at every Floor Crossing : Indoor : 25kA
The product shall be based on temperature rise & not on current density and as per
technical specification and drawing.
RMT
2
Nos
400A End Feed Unit with 25kA 4P MCCB
Nos
2
Nos
End Covers
Nos
35
Nos
Mounting Brackets (Recommended 1No. per 1.5 Mtrs)
Nos
10
Nos
100A Tap Off Box with 16kA 4P MCCB
Nos
Total Amount C/o to Summary……..
SECTION-D :UPS AND BATTERIES
All UPS should have at least one spare potential free contacts to integrate with BMS
system to know the status like ON, OFF, TRIP, etc.,
55
Supply, Installation, Testing and commissioning of 160 KVA UPS system 3 phase input
and three phase output and as per the detailed specification enclosed.(For UPS power for
Server, computers & Emergency lighting)
Supply, Installation, Testing and Commissioning of Sealed Maintenance Free Batteries to
support 160KVA for 30 minutes complete with intercell connectors & copper cables,
battery stand made out of Powder Coated MS Angles with adequate supports to carry the
load of the batteries.
181
Electrical
Chennai Metro Rail Limited
2
Nos
The vendor shall submit dimensional GA drawing of complete UPS system, battery rack
with batteries,Service bypass Panel and Battery bank calculations along with offer.
Nos
Supply, Installation, Testing and commissioning of 20 KVA UPS system 3 phase input
and three phase output and as per the detailed specification enclosed.(For Safety
systems).
Supply, Installation, Testing and Commissioning of Sealed Maintenance Free Batteries to
support 20KVA for 2 hours complete with intercell connectors & copper cables, battery
stand made out of Powder Coated MS Angles with adequate supports to carry the load of
the batteries.
56
2
Nos
The vendor shall submit dimensional GA drawing of complete UPS system, battery rack
with batteries,Service bypass Panel and Battery bank calculations along with offer.
Nos
Supply, Installation, Testing and commissioning of 5 KVA Inverter system 3 phase input
and three phase output and as per the detailed specification enclosed. (For Safety
systems).
Supply, Installation, Testing and Commissioning of Sealed Maintenance Free Batteries to
support 5 KVA for 30 minutes complete with intercell connectors & copper cables,
battery stand made out of Powder Coated MS Angles with adequate supports to carry the
load of the batteries.
57
1
Nos
The vendor shall submit dimensional GA drawing of complete Inverter system, battery rack
with batteries,Service bypass Panel and Battery bank calculations along with offer.
Nos
Total Amount C/o to Summary……..
SECTION – E : DISTRIBUTION BOARDS
All installation works should be as complete and as directed by Employer /
Empolyer's representative.
The rate includes necessary connected minor civil works if required and necessary
supports as required at site. No extra payment will be made for the same.
55
PDB (VTPN DB) - 12 WAY:
182
Electrical
Chennai Metro Rail Limited
Supply, fixing, testing and commissioning of the double door type VTPN 12way MCCB
DB comprising of the following :
125A 4P MCCB 16KA with ELM and all other required accessories – 1 No. as incomer.
16/20/32A TP MCB 10KA – 12 Nos. as outgoings.
1
Nos
56
With necessary tinned copper busbars, interconnections, separate earth bus, separate
neutral bus for each phases. The board shall be powder coated type fixed with concealed
system in wall. The rate shall include necessary connected civil works like chipping, rough
plastering etc.
Nos
PDB (VTPN DB) - 12 WAY: (PLUMBING)
Supply, fixing, testing and