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PROPOSED GOVERNOR’S MANSION
FOR
THE MERU COUNTY
AT MERU
CONTRACT REF: MCG/ONT/002/2014-2015
____________________
BILL OF QUANTITIES
ARCHITECTS
STRUCTURAL ENGINEERS
K&M Archplans
P. O. Box 76240 - 00508
NAIROBI
Xenocon Consulting
Engineers
P. O. Box 59385 - 00200
NAIROBI
QUANTITY SURVEYORS
Constingconsult Ltd
P. O. Box 51509 - 00200
NAIROBI
FEBRUARY 2015
SERVICES ENGINEERS
Mecoy Consultants Ltd
P. O. Box 53086 - 00200
NAIROBI
TENDER DOCUMENTS AND BILLS OF QUANTITIES
Consisting of
From
To
1.
Signature Page
iii
iii
2.
Form of Tender
iv
v
3.
Tender Bond
vi
vi
4.
Instruction to tenderers
IT/0
IT/5
5.
Pre/Post qualification Forms
TQ/0
PGB/2
Conditions of Contract
CC/1
CC/23
Appendix to Conditions of Contract
ACC/1
ACC/3
Spec/0
Spec/64
6.
Section 1
7.
Section 2
Trade Preambles and Specifications
8.
Section 3
BILLS OF QUANTITIES
(i)
Preliminaries
1/0
1/29
(ii)
Main House
2/0
2/26
(iii)
Servant Quarters
3/0
3/17
(iv)
Changing Rooms
4/0
4/14
(v)
Ablution Block
5/0
5/12
(vi)
External Works
6/0
6/13
(vii)
P.C & Provisional Sums
7/0
7/2
(viii)
Summary
Summary Page
Appendix – List of Drawings
ii
TENDER FOR THE CONSTRUCTION AND COMPLETION OF THE PROPOSED
GOVERNOR’S MANSION FOR MERU COUNTY IN MERU
BILLS OF QUANTITIES
Prepared as part of the Contract Documents for the Proposed Mansion for the Governor of Meru
County.
Prepared by
Constingconsult Ltd
Quantity Surveyors & Project Managers
P. O Box 51509 – 00200
NAIROBI
The Contract for the aforementioned works entered into on the …………… day of …………………
2015 by the undersigned parties refers to these Bills of Quantities consisting of those pages numbered
on page ii and the drawings attached which shall be read and construed as part of the said contract.
…………………………………………
(Contractor)
…………………………………………
(Date)
………………………………………….
(Employer)
………………………………………….
(Date)
iii
The County Secretary
Meru County
P O Box 120 - 60200
MERU
FORM OF TENDER
TENDER FOR THE CONSTRUCTION AND COMPLETION OF THE PROPOSED
GOVERNOR’S MANSION FOR MERU COUNTY IN MERU
I/We, the undersigned, having read the drawings, conditions of contract, conditions of tendering, the
specification and the Bills of Quantities delivered to me/us do offer to construct fully, complete and
maintain the whole of the works described for the sum of Kenya Shillings (in Words)
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
……
(Kshs ……………………………………………..)
I / We, further agree to deliver the whole of the works compete within the contract period of
………………………………………….. ( ……………..) Calendar Weeks.
Further, I/We agree if our tender is accepted, to provide a Performance Bond to the Meru County
Government of Kenya shillings (In words).
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
……
(Kshs. …………………………………) being 10% of our tender sum, within 14 days of the letter of
acceptance and within validity period of the Tender Bond.
Further, I/We, agree to provide all the necessary insurance policies described within 14 days of the
later of acceptance and within validity period of the Tender Bond.
I/We agree to be bound by this tender for a period of ninety (90) days from the date for submission of
tenders.
I/We agree to enter into a contract with the Meru County, on the basis of these Bills of Quantities,
Conditions of Tendering, Drawings and the Agreement and Conditions of Contract.
I/We agree that until a formal agreement is prepared and executed, this tender, together with your
written acceptance hereof, shall constitute a binding contract between us and the Meru County.
iv
I/We understand that Meru County is not bound to accept the lowest or any tender and that no
expense incurred by me/us in the preparation of this tender will be allowed.
Name of Tenderer
………………………………………………………………………………………..
Address
…………………………………………………………………………………………………..
Name of Authorized Representative
……………………………………………………………………..
Signature
…………………………………………………………………………………………………
Date
……………………………………………………………………………………………………...
Occupation
……………………………………………………………………………………………….
v
TENDER BOND
The County Secretary
Meru County
P O Box 120 - 60200
MERU
TENDER FOR THE CONSTRUCTION AND COMPLETION OF THE PROPOSED
GOVERNOR’S MANSION FOR MERU COUNTY IN MERU
We ……………………………………………………………………………….. (surety)
Registered in Kenya at the following address ………………………………………………………
……………………………………………………………………… are bound to Meru County for
the payment of Kenya Shillings Two Hundred thousand only (200,000)
The Conditions of this Bond are such that if ………………………………………………………….
………………………………………………………. (Tenderer) keep this tender dated
………………………………………………..valid for fifteen (15) weeks from
…………………………………………………………….and execute the formal Contract Agreement
in accordance with the instructions to tenderers and produce the Performance Bond satisfactorily in
all respects to The Meru County, then the written Bond is to be void otherwise tender bond to be
forfeited.
…………………………………………………
SURETY
…………………………………………
WITNESS
Address ………………………………………..
Address…………………………………
………………………………………………….
…………………………………………..
Date …………………………………………….
Date …………………………………….
vi
SECTION ONE (1)
INSTRUCTIONS TO TENDERERS
Proposed Governor’s Mansion For Meru County
INSTRUCTION TO TENDERERS
The Tenderer is to read carefully the instructions set out below and no claim will be entertained on the
grounds of failure to read or comply with the instructions nor for any alleged mis-understanding of
their import.
1. Currency
The following Bills of Quantities and Form of Tender are to be priced in Kenya shillings.
2. Tender documents
a) All documents relating to the tender and any correspondence shall be in English language
b) A complete set of the tender documents shall consist of the following; i)
ii)
iii)
iv)
v)
vi)
Instructions to Tenderers
Form of Tender
Articles of Agreement and Conditions of Contract
Bills of Quantities
Contract Drawings – listed in the Appendix
Any other materials required to be completed and submitted
c) A complete set of tender documents may be examined by appointment during normal working
hours throughout the tender period at the offices of the Architects/Engineer/QS.
d) It is the Tenderer’s responsibility to examine carefully the whole of the tender documents and
to satisfy himself that the documents are complete and NO claim whatsoever will be
entertained on the grounds that the Tenderer failed to see any of the documents.
e) Any Tenderer requiring any clarification of tender documents may notify the Employer in
writing. The Employer, will only respond to requests for clarifications received earlier than
seven (7) days prior to deadline for submission of tenders. Copies of any Employers
clarification shall be sent to all Tenderers.
3
Information and Documents to be submitted by Tenderers
If required during examination and evaluation of tenders, the tenderer shall submit the
following information and documents to the Architect:-
a) Copies of documents defining the legal status, place of registration and principal place of
business.
b) Statement of experience in works of similar nature and size undertaken in the last five years
listing and giving name of project, value of project and Client.
c) A listing of projects currently committed to stating the value and Client.
SECTION 1
Instruction to tenderers
IT/1
Proposed Governor’s Mansion For Meru County
d) Listing of major items of Construction Plant and Equipment proposed to be used to under take
the project
e) Listing of key management and Technical personnel proposed for project stating their
qualification and experience and an undertaking they will be available
f) Reports on the financial standing of the tenderer.
g) Evidence of adequacy of working capital for this contract stating cash in hand and lines of
credit with supporting documents
4 Tender Information
a) It is the Tenderer’s responsibility to obtain all the information he requires to arrive at his tender
price and no claim for alteration of the tender amount will be entertained on the grounds of
failure to obtain accurate information or of any alleged misinterpretation, misinformation or
any verbal or written instruction or promise given by the employer or his representative other
than what is allowed for in the tender documents.
b) Should there be any doubt or obscurity as to the meaning of any of the tender document, or as
to anything to be done or not to be done by the Contractor, or as to these instructions, or as to
any other matter or things pertaining to the Contract, the Tenderer must submit such doubt or
obscurity in writing to the office of the project Architects not later than one week before the
date fixed for delivery of the tender to facilitate the issue of a circular letter to all tenderers
clarifying or amending any item.
c) Same as above, no alterations whatsoever may be made in any of the tender documents. If any
such alterations are made or if the Bills of Quantities and/ or Details of Tender are incomplete
or improperly filled in, the tender may be invalidated. The tenderer should also confirm with
the Architect any specifications that he may deem not clear.
d) Before the deadline for submission of tenders, the Employer may modify the tendering
documents by issuing addenda. Any addendum thus issued shall be part of the tendering
documents and shall be communicated in writing or by email to all tenderers. Prospective
tenderers shall acknowledge receipt of each addendum in writing to the Quantity Surveyor.
5
Pricing
The rates and prices set down by the Tenderer against the items in the Bills of Quantities are to
be the full inclusive value of the finished work described there under and are to include for
profit and all obligations and liabilities of every kind which under the contract are to be borne
by the contractor. The Tenderer’s attention is drawn to the section in which provision is made
for the pricing of the Contractor’s general obligations. Any item or items not priced either in
this section or elsewhere in the Bills of Quantities will be deemed to have been allowed for in
the prices inserted against other items in the Bills of Quantities. The tenderer shall fill rates for
all items of the works described in the Bills of Quantities. The rates inserted against item shall
be deemed to include all costs involved in complying with specifications requirements.
SECTION 1
Instruction to tenderers
IT/2
Proposed Governor’s Mansion For Meru County
6. Assignment and Sub-letting
The Tenderer’s attention is drawn to the clauses in the Conditions of Contract which prohibits
the assignment or sub-letting of the whole or any portion of the Work without the prior consent
in writing of the Employer or their representative.
The tenderer shall submit with his tender a list of all portions of the work he proposes to sublet, with particulars ( as far as possible) of the sub-contractors he proposes to employ, but the
acceptance of his tender shall not be regarded as implying in an way approval of his proposal
for sub-letting.
7. Canvassing
Any form of canvassing is strictly prohibited. If a Tenderer makes any representation intended
to influence the consideration of the tenders either directly or indirectly to any person officially
concerned in the condition of the tender, his tender shall be disqualified.
8
Form of Tender
a) The tender must be submitted on the form of Tender provided. The tender amount is to be
inserted in words and figures in the space provided and all other black spaces elsewhere in the
form of tender must be filled in with the information required.
b) The Tenderer is asked to state the time he requires to complete the Contract and he must insert
in words and number of weeks or months he requires. The time stated will be taken into
account when deciding on the award of the Contract and will be incorporated in the Contract
documents.
c) The tender must be signed by the principal of the firm or by a person authorized for the
purpose and the registered name and address of the Contractor must be printed in block letters
or typed in space provided. No tender that is incompletely or improperly filled in will be
considered.
9.
Conditions of labour
The Tenderer’s attention is drawn to the requirement in the conditions of Contract to comply
with all regulations, rules or instructions concerning conditions and terms or employment of
any class of employee.
10. List of PC items for which the Contractor desires to Tender
If the Tenderer in the ordinary accurse of his business, undertakes work for which prime cost
or provisional sums are included in the contract and he desires to tender for the same he must
submit with his tender list of such items for which he desires to tender.
11. Tender Submission
a) Tenders must be delivered in a plain envelope, properly sealed and with no external
instructions or mark of identification other than the following title;
“TENDER FOR THE PROPOSED GOVERNOR’S MANSION FOR MERU COUNTY’’
SECTION 1
Instruction to tenderers
IT/3
Proposed Governor’s Mansion For Meru County
b) Tenders shall be delivered to the Employer at the address specified not later than date specified
in the invitation letter. Any tender received after the deadline specified shall be rejected.
c) The envelope shall contain all other tender documents supplied to the Tenderers except for any
drawings which are to be returned to the office from which they were issued.
d) Tenders delivered after the time stated will not be considered.
e) The date, place and time of submission shall be indicated in the letter of invitation to tender
12. Validity of Tender
The tender shall remain a valid offer open for acceptance at any time up to Sixty (60) days
from the date of submission unless previously withdrawn in writing by a letter to the
Employer.
13. The Employer accepts no Obligations
a) The Employer will not reimburse a Tenderer for any costs incurred in the preparation of the
tender.
b) The Employer does not bind himself to accept the lowest or any tender and will not assign any
reason for the rejection of any tender.
14. Visit the Site
The tenderer is strongly advised to visit the site to view and ascertain for himself the site
conditions especially with regard to the existing structures adjacent properties, access to the
site, the site levels and the general neighborhood.
15. Tender opening and evaluation
(a) Tenders will be opened by the Employer in the presence of tenderers who wish to attend. The
tender sum from each tenderer shall be recorded at the tender opening.
b) To assist examination evaluation and comparison of tenders the Employer at his discretion
may ask any tenderer for clarification of tender including breakdown of unit rates.
c) Information relating to the examination and evaluation of tenders and recommendations shall
not be disclosed to tenderers
16. Correction of Errors
Arithmetic errors will be corrected as follows:
(a)
SECTION 1
Instruction to tenderers
where there is a discrepancy between the amount in figures and the amount in
words, the amount in words will prevail; and
IT/4
Proposed Governor’s Mansion For Meru County
17.
18.
(b)
where there is a discrepancy between the unit rate and the line item total
resulting from multiplying the unit rate by the quantity, the unit rate as quoted
will prevail, unless there is an obvious typographical error, in which case the
adjustment will be made to the entry containing that error.
(c)
In the event of a discrepancy between the tender amount as stated in the Form of
Tender and the corrected tender figure in the main summary of the Bill of
Quantities, the amount as stated in the Form of Tender shall prevail.
(d)
The Error Correction Factor shall be computed by expressing the difference
between the tender amount and the corrected tender sum as a percentage of the
corrected Builder’s Work (i.e. Corrected tender sum less P.C. and Provisional
Sums)
(e)
The Error Correction Factor shall be applied to all Builder’s Work (as a rebate
or addition as the case may be) for the purposes of valuations for Interim
Certificates and valuation of variations.
Award of Contract
(a)
The Employer will award the Contract to the tenderer whose tender has been
considered to be substantially responsive.
(b)
The Employer reserves the right to accept or reject any tender and to cancel the
tender process and reject all tenders any time, prior to award of contract without
thereby incurring liability.
(c)
The tenderer whose tender has been accepted will be notified of the award in
writing through a “Letter of Acceptance.”
Tender submission, Evaluation and Award to be confidential
The whole process of tender submission, query clarification, evaluation, examination
award etc. shall be confidential
SECTION 1
Instruction to tenderers
IT/5
Proposed Governor’s Mansion, Meru County
PRE/POST QUALIFICATIONS
i)
Tender Questionnaire
TQ/1
ii)
Qualification Information
QI – QI-4
iii)
Confidential Business Questionnaire
BQ/1 – BQ2
iv)
Form of Tender Security
TS/1 – TS/2
v)
Performance Bank Guarantee
PBG/1 – PBG/2
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
TENDER QUESTIONNAIRE
Please fill in block letters.
1.
Full names of tenderer; …………………………………………………………
……………………………………………………………………………………...
2.
Full address of tenderer to which tender correspondence is to be sent (unless
an agent has been appointed below);
……………………………………………………………………………………...
……………………………………………………………………………….……..
3.
Telephone number (s) of tenderer; …………………………………………….
……………………………………………………………………………………...
4.
Telex of tenderer; ………………………………………………………..………
……………………………………………………………………………………...
5.
Name of tenderer’s representative to be contacted on matters of the tender
during the tender period; ………………………………………………………..
……………………………………………………………………………………...
6.
Details of tenderer’s nominated agent (if any) to receive tender notices. This
is essential if the tenderer does not have his registered address in Kenya
(name, address, telephone, telex); …………………..……………………….…
…………………………………………………………………………………..…...
…………………………………………………………………………….…………
_______________________
Signature of Tenderer
Make copy and deliver to:
THE COUNTY SECRETARY
MERU COUNTY
P. O. Box 120 - 60200
MERU
TQ/ 1
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
QUALIFICATION INFORMATION
IMPORTANT NOTES
1. Tenderers are advised to refer to the instructions to tenderers section before
preparing the qualification information.
2. The tables appearing below are samples. Tenderer should prepare their own
table using a word processor (computer) and fill in all the required information.
Hand filled forms will not be accepted.
3. “Certified copies” means certified by a High Court Advocate and Commissioner
for Oaths.
4. Tenderers must be registered companies incorporated in Kenya under the
companies act CAP 486.
1.
Individual Tenderers or Individual Members of Joint Ventures
1.1
Constitution or legal status of tenderer (attach copies or Incorporation
Certificate, PIN and VAT certificates);
Place of registration: ____________________________________
Principal place of business _______________________________
Power of attorney of signatory of tender ____________________
1.2
Total annual volume of construction work performed in the last five years
Year
Volume
Currency
1.3
Value
Work performed as Main Contractor on works of a similar nature and volume
over the last five years. Also list details of ongoing projects, including
expected completion date.
Project Name
Name of client
and contact of
person
Type of work
Value
Note: Tenderer to attach certified copies of completion certificates
(completed projects) and award letters (ongoing projects). Refer to clause 1.7
(b) of instructions to tenderers.
QI/1
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
1.4
For the projects given in 1.3 above give further information as follows:Project Name
1.5
Initial contract
period (weeks)
Actual Completion
time (weeks)
For the projects given in 1.3 above give further information as follows:Project Name
1.6
Lead
Consultant
Initial Contract
Sum (Kshs.)
Final Account
Sum (Kshs.)
Variations Value
Major items of Contractor’s Equipment proposed for carrying out the Works.
List all information requested below. Refer also to Clause 1.7 (c) of the
Instructions to Tenderers.
Item of
Equipment
Description,
Make and age
(years)
Condition(new,
good, poor) and
number
available
State whether
owned or
leased
Note: For owned equipment attach certified copies of proof of ownership e.g.
logbooks. For leased, attach copies of lease agreements.
1.7
Qualifications and experience of key personnel proposed for administration
and execution of the Contract. Attach Curriculum Vitaes (CV’s). Refer also to
clause 1.5 (e) of the Instructions to Tenderers and Clause 9.1 of the
Conditions of Contract.
Position
Name
QI/2
Qualifications
Years of
experience in
proposed position
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
1.8
Proposed subcontracts and firms involved. Refer to Clause 7.1 of the
Conditions of Contract.
Sections of the
Works
Value of Subcontract
Subcontractor
(name and
address)
Years of
experience in
Similar work
Note: Subcontractors must be class E or above (Ministry of Public Works)
and registered with other relevant Government ministries and public
authorities. Attach certified copies of certificates.
1.9
Financial reports for the last five years: balance sheets, profit and loss
statements, auditor’s reports, etc. List below and attach copies.
______________________________________________________________
______________________________________________________________
Note: Audited accounts must be signed and stamped by at least 2 company
directors and audited by a registered certified accountant.
1.10
Evidence of access to financial resources to meet the qualification
requirements: cash in hand, lines of credit, etc. List below and attach certified
copies of supportive documents. All documents must be signed and stamped
by the directors of the institutions providing the financial facilities
____________________________________________________________
1.11
Name, address and telephone, email and facsimile numbers of banks that
may provide reference if contacted by the Employer.
______________________________________________________________
______________________________________________________________
1.12
Statement of compliance with the requirements of Clause 1.2 of the
Instructions to Tenderers.
____________________________________________________________
____________________________________________________________
1.13
Proposed program (work method and schedule) in compliance with
requirements Tender Documents
1.14
Bank Statements. Provide certified copies of bank statements from your
official bankers for the last 6 months.
1.15
Tax compliance certificate. Provide certified copy of your up to date valid tax
compliance certificate from Kenya Revenue authority.
QI/3
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
1.16
NHIF & NSSF compliance certificates. Provide certified copies of your up to
date valid remittance receipts, or compliance certificate from NHIF and NSSF.
1.17
Litigation: List of disputes
Name of
Contract
Type of
resolution
method
Date of
dispute
Date of
settlement
Amount in
dispute
1.18
Details of company ownership; provide copies of the following: Memorandum of Association
 Articles of Association
 List of Directors and their Curriculum Vitaes (CVs)
1.19
Attach copy of current business permit
1.20
Attach copies of Ministry of Public Works registration certificate and any
others from different registration authorities and government ministries and
institutions.
2
Joint Ventures
2.1
The information listed in 1.1 – 1.10 above shall be provided for each partner
of the joint venture.
2.2
The information required in 1.11 above shall be provided for the joint venture.
2.3
Attach the power of attorney of the signatory(ies) of the tender authorizing
signature of the tender on behalf of the joint venture
2.4
Attach the Agreement among all partners of the joint venture (and which is
legally binding on all partners), which shows that:
a)
all partners shall be jointly and severally liable for the execution of the
Contract in accordance with the Contract terms;
b)
one of the partners will be nominated as being in charge, authorized to
incur liabilities and receive instructions for and on behalf of any and all
partners of the joint venture; and
c)
the execution of the entire Contract, including payment, shall be done
exclusively with the partner in charge.
QI/4
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
CONFIDENTIAL BUSINESS QUESTIONNAIRE
Note: Tenderers must be registered companies incorporated in Kenya under the
companies Act CAP 486.
You are requested to give the particulars indicated in Part 1 and either Part 2 (a), 2
(b) or 2 (b) OR 2 (c) and 2 (d) whichever applies to your type of business.
You are advised that it is a serious offence to give false information on this Form.
Part 1 – General
Business Name ………………………………………………………………………
Location of business premises;
Country/Town…………………………..….
Plot No……………………………………… Street/Road ……………………….…
Postal Address……………………………… Tel No………………………………..
Nature of Business……………………………………………………………..……..
Current Trade License No…………………… Expiring date ……………………
Maximum value of business which you can handle at any time: K. pound ……..
Name of your bankers……………………………………………….………………
Branch…………………………………………………………………………………
Part 2 (a) – Sole Proprietor
Your name in full…………………………………… Age…………………………
Nationality………………………………… Country of Origin…………….………
Citizenship details …………………………………………………………………
BQ/1
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
Part 2 (b) – Partnership
Give details of partners as follows:
Name in full
Nationality
Citizenship
Details
Shares
1.
2.
3.
4.
5.
Part 2 (c) - Registered Company
Private or public ……………………………………………………………………………
State the nominal and issued capital of the company
Nominal K£ …………………………………………..
Issued K£ …………………………………………….
Give details of all directors as follows:Name in full
Nationality
Citizenship
Details
Shares
1.
2.
3.
4.
5.
Part 2 (d) – Interest in the Firm:
Is there any person / persons in ----------------- Kenya in general who has interest in
this firm? Yes / No ………………………………….. (Delete as necessary).
I certify that the above information is correct.
……………………………..
(Title)
*
………………………………
(Signature)
……………………………..
(Date)
Attach proof of citizenship
BQ/2
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
FORM OF TENDER SECURITY
(From an approved Commercial Bank)
BANK GUARANTEE: (See Clause 3.7 of Instructions to Tenderers)
The County Secretary
Meru County
P. O. Box 120 - 60200
MERU
THE PROPOSED GOVERNOR’S MANSION FOR THE MERU COUNTY AT
MERU
WHEREAS …………………………………………………………………………..………..
(hereinafter called “the Tenderer”) has submitted his tender dated …………………
for the construction of THE PROPOSED GOVERNOR’S MANSION FOR THE
MERU COUNTY AT MERU
KNOW ALL PEOPLE by these presents that WE ………………………...………………
having our registered office at …………………………………………… (hereinafter
called “the Bank”), are bound unto The County Secretary, Meru County P. O. Box
120 - 60200 Meru (hereinafter called “the Employer”) in the sum of Kshs. --------------------------------------- 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 the Common Seal of the said Bank this ………………….……. Day of
……………….………… 20 ……………………
THE CONDITIONS of this obligation are:
1.
If after tender opening the Tenderer withdraws his tender during the period of
tender validity specified in the instructions to tenderers
Or
2.
If the Tenderer, having been notified of the acceptance of his tender by the
Employer during the period of tender validity:
(a)
(b)
fails or refuses to execute the form of Agreement in accordance with
the Instructions to Tenderers, if required; or
fails or refuses to furnish the Performance Security, in accordance with
the Instructions to Tenderers;
We undertake to pay to the Employer up to 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 one or both of the
two conditions, specifying the occurred condition or conditions.
TS/1
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
This guarantee will remain in force up to and including thirty (30) days after
the period of tender validity, and any demand in respect thereof should reach
the Bank not later than the said date.
_____________________________
___________________________
[Date]
[Signature of the Bank]
_____________________________
_____________________________
[Witness]
[Seal]
TS/2
Constingconsult Ltd
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
PERFORMANCE BANK GUARANTEE
The County Secretary
Meru County
P. O. Box 120 - 60200
MERU
Dear Sir,
WHEREAS _____________________________ (hereinafter called the Contractor) has
undertaken, in pursuance of Contract No. ______________ dated _____________ to
execute THE PROPOSED GOVERNOR’S MANSION FOR THE MERU COUNTY AT
MERU (hereinafter called the works);
AND WHEREAS it has been stipulated by you in the said Contract that the Contractor shall
furnish you with a Bank Guarantee by a recognized bank for the sum specified therein as
security for compliance with his obligations in accordance with the Contract;
AND WHEREAS we have agreed to give the Contractor such a Bank Guarantee:
NOW THEREFORE we hereby affirm that we are the Guarantor and responsible to you, on
behalf of the Contractor, up to a total of Kshs. _____________________________ (amount
of Guarantee in figures)
Kenya shillings _____________________________________________________ (amount
of Guarantee in words),
and we undertake to pay you, upon your first written demand and without cavil or argument,
any sum or sums within the limits of Kenya shillings
________________________________________________________________( amount of
Guarantee in words)
as aforesaid without your needing to prove or to show grounds or reasons for your demand
for the sum specified therein.
We hereby waive the necessity of your demanding the said debt from the Contractor before
presenting us with the demand.
We further agree that no change, addition or other modification of the terms of the Contract
or of the works to be performed there under or of any of the Contract documents which may
be made between you and the Contractor shall in any way release us from liability under
this Guarantee, and we hereby waive notice of any change, additions, or modification.
PBG/1
Consting-Consult
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
This guarantee shall be valid until the date of issue of the Certificate of Completion.
SIGNATURE AND SEAL OF THE GUARANTOR
_____________________________
__________________________
Name of Bank __________________________________________________________
Address _______________________________________________________________
Date___________________________________________________________________
PBG/2
Consting-Consult
Consulting Quantity Surveyors and Project Managers
Proposed Governor’s Mansion, Meru County
CONDITIONS OF CONTRACT
1
Table of Contents
Definitions …………………………………………………
3-5
2
Interpretation………………………………………………
5 -6
3
Language and Law …………………………………………
6
4
Project Manager’s Decisions………………………………
6
5
Delegation…………………………………………………
6
6
Communications …………………………………………
6
7
Sub Contracting …………………………………………
6
8
Other Contractors ………………………………………
6
9
Personnel …………………………………………………
6-7
10
Works………………………………………………………
7
11
Safety and temporary works ……………………………… 7
12
Discoveries …………………………………………………
7
13
Work Programme …………………………………………
7-8
14
Possession of site …………………………………………
8
15
Access to site ……………………………………………
8
16
Instructions ………………………………………………
8
17
Extension or Acceleration of completion date ………… 8-9
18
Management Meetings …………………………………
9
19
Early Warning ……………………………………………
9
20
Defects ……………………………………………………
9 -10
21
Bills of Quantities …………………………………………
10
22
Variations …………………………………………………
10-11
23
Payment certificates, currency of payments and
Advance Payments ………………………………………
11-13
24
Compensation events ……………………………………
13 - 15
25
Price Adjustment …………………………………………
15 - 16
26
Retention …………………………………………………
16
27
Liquidated Damages………………………………………
16-17
Proposed Governor’s Mansion, Meru County
28
Securities …………………………………………………
17
29
Day Works ………………………………………………
17
30
Liability and Insurance ……………………………………
17 - 19
31
Completion and taking over ………………………………
19
32
Final Account ……………………………………………
19
33
Termination ………………………………………………
19 - 20
34
Payment upon termination ………………………………… 20-21
35
Release from performance …………………………………
36
Corrupt gifts and payments of commission ………………21 -22
37
Settlement of Disputes ……………………………………… 22-23
SECTION 2
Conditions of Contract
CC/2
21
Proposed Governor’s Mansion, Meru County
CONDITIONS OF CONTRACT
1.
Definitions
1.1
In this Contract, except where context otherwise requires, the following terms
shall be interpreted as indicated;
“Bill of Quantities” means the priced and completed Bill of Quantities
forming part of the tender.
“Compensation Events” are those defined in Clause 24 hereunder.
“The Completion Date” means the date of completion of the Works as
certified by the Project Manager, in accordance with Clause 31.
“The Contract” means the agreement entered into between the Employer and
the Contractor as recorded in the Agreement Form and signed by the parties
including all attachments and appendices thereto and all documents
incorporated by reference therein to execute, complete, and maintain the
Works,
“The Contractor” refers to the person or corporate body whose tender to
carry out the Works has been accepted by the Employer.
“The Contractor’s Tender” is the completed tendering document submitted
by the Contractor to the Employer.
“The Contract Price” is the price stated in the Letter of Acceptance and
thereafter as adjusted in accordance with the provisions of the Contract.
“Days” are calendar days; “Months” are calendar months.
“A Defect” is any part of the Works not completed in accordance with the
Contract.
“The Defects Liability Certificate” is the certificate issued by Project
Manager upon correction of defects by the Contractor.
“The Defects Liability Period” is the period named in the Contract Data and
calculated from the Completion Date.
“Drawings” include calculations and other information provided or approved
by the Project Manager for the execution of the Contract.
SECTION 2
Conditions of Contract
CC/3
Proposed Governor’s Mansion, Meru County
“Dayworks” are Work inputs subject to payment on a time basis for labour
and the associated materials and plant.
“Employer”, or the “Procuring entity” as defined in the Public Procurement
Regulations (i.e. National or County Government administration, Universities,
Public Institutions and Corporations, etc) is the party who employs the
Contractor to carry out the Works.
“Equipment” is the Contractor’s machinery and vehicles brought temporarily
to the Site for the execution of the Works.
“The Intended Completion Date” is the date on which it is intended that the
Contractor shall complete the Works. The Intended Completion Date may be
revised only by the Project Manager by issuing an extension of time or an
acceleration order.
“Materials” are all supplies, including consumables, used by the Contractor
for incorporation in the Works.
“Plant” is any integral part of the Works that shall have a mechanical,
electrical, chemical, or biological function.
“Project Manager” is the person named in the Appendix to Conditions of
Contract (or any other competent person appointed by the Employer and
notified to the Contractor, to act in replacement of the Project Manager) who is
responsible for supervising the execution of the Works and administering the
Contract and shall be an “Architect” or a “Quantity Surveyor” registered under
the Architects and Quantity Surveyors Act Cap 525 or an “Engineer”
registered under Engineers Registration Act Cap 530.
“Site” is the area defined as such in the Appendix to Condition of Contract.
“Site Investigation Reports” are those reports that may be included in the
tendering documents which are factual and interpretative about the surface
and subsurface conditions at the Site.
“Specifications” means the Specifications of the Works included in the
Contract and any modification or addition made or approved by the Project
Manager.
“Start Date” is the latest date when the Contractor shall commence execution
of the Works. It does not necessarily coincide with the Site possession date(s).
SECTION 2
Conditions of Contract
CC/4
Proposed Governor’s Mansion, Meru County
“A Subcontractor” is a person or corporate body who has a Contract with the
Contractor to carry out a part of the Work in the Contract, which includes
Work on the Site.
“Temporary works” are works designed, constructed, installed, and removed
by the Contractor which are needed for construction or installation of the
Works.
“A Variation” is an instruction given by the Project Manager which varies the
Works.
“The Works” are what the Contract requires the Contractor to construct, install,
and turnover to the Employer, as defined in the Appendix to Conditions of Contract.
2.
Interpretation
2.1
In interpreting these Conditions of Contract, singular also means plural, male
also means female or neuter, and the other way around. Headings have no
significance. Words have their normal meaning in English Language unless
specifically defined. The Project Manager will provide instructions clarifying
queries about these Conditions of Contract.
2.2
If sectional completion is specified in the Appendix to Conditions of Contract,
reference in the Conditions of Contract to the Works, the Completion Date and
the Intended Completion Date apply to any section of the Works (other than
references to the Intended Completion Date for the whole of the Works).
2.3
The following documents shall constitute the Contract documents and shall be
interpreted in the following order of priority;
(1)
Agreement,
(2)
Letter of Acceptance,
(3)
Contractor’s Tender,
(4)
Appendix to Conditions of Contract,
(5)
Conditions of Contract,
(6)
Specifications,
(7)
Drawings,
(8)
Bill of Quantities,
SECTION 2
Conditions of Contract
CC/5
Proposed Governor’s Mansion, Meru County
(9)
Any other documents listed in the Appendix to Conditions of Contract as
forming part of the Contract.
Immediately after the execution of the Contract, the Project Manager
shall furnish both the Employer and the Contractor with two copies
each of all the Contract documents. Further, as and when necessary
the Project Manager shall furnish the Contractor [always with a copy
to the Employer] with three [3] copies of such further drawings or
details or descriptive schedules as are reasonably necessary either
to explain or amplify the Contract drawings or to enable the
Contractor to carry out and complete the Works in accordance with
these Conditions.
3.
Language and Law
3.1
Language of the Contract and the law governing the Contract shall be English
language and the Laws of Kenya respectively unless otherwise stated.
4 Project Manager’s Decisions
4.1
Except where otherwise specifically stated, the Project Manager will decide
contractual matters between the Employer and the Contractor in the role
representing the Employer.
5 Delegation
5.1
The Project Manager may delegate any of his duties and responsibilities to
others after notifying the Contractor.
6 Communications
6.1
Communication between parties shall be effective only when in writing.
notice shall be effective only when it is delivered.
A
7 Subcontracting
7.1
The Contractor may subcontract with the approval of the Project Manager, but
may not assign the Contract without the approval of the Employer in writing.
Subcontracting shall not alter the Contractor’s obligations.
8 Other Contractors
8.1
The Contractor shall cooperate and share the Site with other contractors,
public authorities, utilities etc. as listed in the Appendix to Conditions of
Contract and also with the Employer, as per the directions of the Project
Manager. The Contractor shall also provide facilities and services for them.
SECTION 2
Conditions of Contract
CC/6
Proposed Governor’s Mansion, Meru County
The Employer may modify the said List of Other Contractors etc., and shall
notify the Contractor of any such modification.
9 Personnel
9.1
The Contractor shall employ the key personnel named in the Qualification
Information, to carry out the functions stated in the said Information or other
personnel approved by the Project Manager. The Project Manager will approve
any proposed replacement of key personnel only if their relevant qualifications
and abilities are substantially equal to or better than those of the personnel
listed in the Qualification Information. If the Project Manager asks the
Contractor to remove a person who is a member of the Contractor’s staff or
work force, stating the reasons, the Contractor shall ensure that the person
leaves the Site within seven days and has no further connection with the Work
in the Contract.
10 Works
10.1 The Contractor shall construct and install the Works in accordance with the
Specifications and Drawings. The Works may commence on the Start Date
and shall be carried out in accordance with the Program submitted by the
Contractor, as updated with the approval of the Project Manager, and
complete them by the Intended Completion Date.
11 Safety and Temporary Works
11.1 The Contractor shall be responsible for the design of temporary works.
However before erecting the same, he shall submit his designs including
specifications and drawings to the Project Manager and to any other relevant
third parties for their approval. No erection of temporary works shall be done
until such approvals are obtained.
11.2 The Project Manager’s approval shall not alter the Contractor’s responsibility
for design of the Temporary works and all drawings prepared by the
Contractor for the execution of the temporary or permanent Works, shall be
subject to prior approval by the Project Manager before they can be used.
11.3 The Contractor shall be responsible for the safety of all activities on the Site.
12.
Discoveries
12.1 Anything of historical or other interest or of significant value unexpectedly
discovered on Site shall be the property of the Employer. The Contractor shall
notify the Project Manager of such discoveries and carry out the Project
Manager’s instructions for dealing with them.
SECTION 2
Conditions of Contract
CC/7
Proposed Governor’s Mansion, Meru County
13.
Work Program
13.1 Within the time stated in the Appendix to Conditions of Contract, the
Contractor shall submit to the Project Manager for approval a program
showing the general methods, arrangements, order, and timing for all the
activities in the Works. An update of the program shall be a program showing
the actual progress achieved on each activity and the effect of the progress
achieved on the timing of the remaining Work, including any changes to the
sequence of the activities.
The Contractor shall submit to the Project Manager for approval an updated
program at intervals no longer than the period stated in the Appendix to
Conditions of Contract. If the Contractor does not submit an updated
program within this period, the Project Manager may withhold the amount
stated in the said Appendix from the next payment certificate and continue to
withhold this amount until the next payment after the date on which the
overdue program has been submitted. The Project Manager’s approval of the
program shall not alter the Contractor’s obligations. The Contractor may
revise the program and submit it to the Project Manager again at any time. A
revised program shall show the effect of Variations and Compensation Events.
14.
Possession of Site
14.1 The Employer shall give possession of all parts of the Site to the Contractor. If
possession of a part is not given by the date stated in the Appendix to
Conditions of Contract , the Employer will be deemed to have delayed the start
of the relevant activities, and this will be a Compensation Event.
15.
Access to Site
15.1 The Contractor shall allow the Project Manager and any other person
authorized by the Project Manager, access to the Site and to any place where
work in connection with the Contract is being carried out or is intended to be
carried out.
16.
Instructions
16.1 The Contractor shall carry out all instructions of the Project Manager which
are in accordance with the Contract.
17.
Extension or Acceleration of Completion Date
17.1 The Project Manager shall extend the Intended Completion Date if a
Compensation Event occurs or a variation is issued which makes it impossible
for completion to be achieved by the Intended Completion Date without the
Contractor taking steps to accelerate the remaining Work, which would cause
SECTION 2
Conditions of Contract
CC/8
Proposed Governor’s Mansion, Meru County
the Contractor to incur additional cost. The Project Manager shall decide
whether and by how much to extend the Intended Completion Date within 21
days of the Contractor asking the Project Manager in writing for a decision
upon the effect of a Compensation Event or variation and submitting full
supporting information. If the Contractor has failed to give early warning of a
delay or has failed to cooperate in dealing with a delay, the delay caused by
such failure shall not be considered in assessing the new (extended)
Completion Date.
17.2 No bonus for early completion of the Works shall be paid to the Contractor by
the Employer.
18.
Management Meetings
18.1 A Contract management meeting shall be held monthly and attended by the
Project Manager and the Contractor. Its business shall be to review the plans
for the remaining Work and to deal with matters raised in accordance with the
early warning procedure. The Project Manager shall record the minutes of
management meetings and provide copies of the same to those attending the
meeting and the Employer. The responsibility of the parties for actions to be
taken shall be decided by the Project Manager either at the management
meeting or after the management meeting and stated in writing to all who
attended the meeting.
19.
Early Warning
19.1 The Contractor shall warn the Project Manager at the earliest opportunity of
specific likely future events or circumstances that may adversely affect the
quality of the Work, increase the Contract Price or delay the execution of the
Works. The Project Manager may require the Contractor to provide an
estimate of the expected effect of the future event or circumstance on the
Contract Price and Completion Date. The estimate shall be provided by the
Contractor as soon as reasonably possible.
19.2 The Contractor shall cooperate with the Project Manager in making and
considering proposals on how the effect of such an event or circumstance can
be avoided or reduced by anyone involved in the Work and in carrying out any
resulting instructions of the Project Manager.
20.
Defects
20.1 The Project Manager shall inspect the Contractor’s work and notify the
Contractor of any defects that are found. Such inspection shall not affect the
Contractor’s responsibilities.
The Project Manager may instruct the
Contractor to search for a defect and to uncover and test any Work that the
Project Manager considers may have a defect. Should the defect be found, the
cost of uncovering and making good shall be borne by the Contractor,
SECTION 2
Conditions of Contract
CC/9
Proposed Governor’s Mansion, Meru County
However, if there is no defect found, the cost of uncovering and making good
shall be treated as a variation and added to the Contract Price.
20.2 The Project Manager shall give notice to the Contractor of any defects before
the end of the Defects Liability Period, which begins at Completion, and is
defined in the Appendix to Conditions of Contract. The Defects Liability Period
shall be extended for as long as defects remain to be corrected.
20.3 Every time notice of a defect is given, the Contractor shall correct the notified
defect within the length of time specified by the Project Manager’s notice. If
the Contractor has not corrected a defect within the time specified in the
Project Manager’s notice, the Project Manager will assess the cost of having
the defect corrected by other parties and such cost shall be treated as a
variation and be deducted from the Contract Price.
21.
Bills Of Quantities
21.1 The Bills of Quantities shall contain items for the construction, installation,
testing and commissioning of the Work to be done by the Contractor. The
Contractor will be paid for the quantity of the Work done at the rate in the
Bills of Quantities for each item.
21.2 If the final quantity of the Work done differs from the quantity in the Bills of
Quantities for the particular item by more than 25 percent and provided the
change exceeds 1 percent of the Initial Contract price, the Project Manager
shall adjust the rate to allow for the change.
21.3 If requested by the Project Manager, the Contractor shall provide the Project
Manager with a detailed cost breakdown of any rate in the Bills of Quantities.
22.
Variations
22.1 All variations shall be included in updated programs produced by the
Contractor.
22.2 The Contractor shall provide the Project Manager with a quotation for carrying
out the variations when requested to do so. The Project Manager shall assess
the quotation, which shall be given within seven days of the request or within
any longer period as may be stated by the Project Manager and before the
Variation is ordered.
22.3 If the work in the variation corresponds with an item description in the Bills of
Quantities and if in the opinion of the Project Manager, the quantity of work is
not above the limit stated in Clause 21.2 or the timing of its execution does
not cause the cost per unit of quantity to change, the rate in the Bills of
Quantities shall be used to calculate the value of the variation.
SECTION 2
Conditions of Contract
CC/10
Proposed Governor’s Mansion, Meru County
If the cost per unit of quantity changes, or if the nature or timing of the work
in the variation does not correspond with items in the Bills of Quantities, the
quotation by the Contractor shall be in the form of new rates for the relevant
items of Work.
22.4 If the Contractor’s quotation is unreasonable, the Project Manager may order
the variation and make a change to the Contract price, which shall be based
on the Project Manager’s own forecast of the effects of the variation on the
Contractor’s costs.
22.5 If the Project Manager decides that the urgency of varying the Work would
prevent a quotation being given and considered without delaying the Work, no
quotation shall be given and the variation shall be treated as a Compensation
Event.
22.6 The Contractor shall not be entitled to additional payment for costs that could
have been avoided by giving early warning.
22.7 When the Program is updated, the Contractor shall provide the Project
Manager with an updated cash flow forecast.
23.
Payment Certificates, Currency of Payments and Advance Payments
23.1 The Contractor shall submit to the Project Manager monthly applications for
payment giving sufficient details of the Work done and materials on Site and
the amounts which the Contractor considers himself to be entitled to. The
Project Manager shall check the monthly application and certify the amount to
be paid to the Contractor within 14 days. The value of Work executed and
payable shall be determined by the Project Manager.
23.2 The value of Work executed shall comprise the value of the quantities of the
items in the Bills of Quantities completed, materials delivered on Site,
variations and compensation events.
Such materials shall become the
property of the Employer once the Employer has paid the Contractor for their
value . Thereafter, they shall not be removed from Site without the Project
Manager’s instructions except for use upon the Works.
23.3 Payments shall be adjusted for deductions for retention. The Employer shall
pay the Contractor the amounts certified by the Project Manager within 30
days of the date of issue of each certificate. If the Employer makes a late
payment, the Contractor shall be paid simple interest on the late payment in
the next payment. Interest shall be calculated on the basis of number of days
delayed at a rate three percentage points above the Central Bank of Kenya’s
average rate for base lending prevailing as of the first day the payment
becomes overdue.
SECTION 2
Conditions of Contract
CC/11
Proposed Governor’s Mansion, Meru County
23.4 If an amount certified is increased in a later certificate or as a result of an
award by an Arbitrator, the Contractor shall be paid interest upon the delayed
payment as set out in this clause. Interest shall be calculated from the date
23.5 upon which the increased amount would have been certified in the absence of
dispute.
23.6 Items of the Works for which no rate or price has been entered in will not be
paid for by the Employer and shall be deemed covered by other rates and
prices in the Contract.
23.7 The Contract Price shall be stated in Kenya Shillings. All payments to the
Contractor shall be made in Kenya Shillings and foreign currency in the
proportion indicated in the tender, or agreed prior to the execution of the
Contract Agreement and indicated therein. The rate of exchange for the
calculation of the amount of foreign currency payment shall be the rate of
exchange indicated in the Appendix to Conditions of Contract.
If the
Contractor indicated foreign currencies for payment other than the currencies
of the countries of origin of related goods and services the Employer reserves
the right to pay the equivalent at the time of payment in the currencies of the
countries of such goods and services. The Employer and the Project Manager
shall be notified promptly by the Contractor of an changes in the expected
foreign currency requirements of the Contractor during the execution of the
Works as indicated in the Schedule of Foreign Currency Requirements and the
foreign and local currency portions of the balance of the Contract Price shall
then be amended by agreement between Employer and the Contractor in order
to reflect appropriately such changes.
23.7 In the event that an advance payment is granted, the following shall apply:a)
On signature of the Contract, the Contractor shall at his request, and
without furnishing proof of expenditure, be entitled to an advance of
10% (ten percent) of the original amount of the Contract. The advance
shall not be subject to retention money.
b)
No advance payment may be made before the Contractor has submitted
proof of the establishment of deposit or a directly
liable guarantee satisfactory to the Employer in the amount of the
advance payment. The guarantee shall be in the same currency as the
advance.
c)
Reimbursement of the lump sum advance shall be made by deductions
from the Interim payments and where applicable from the balance owing
to the Contractor. Reimbursement shall begin when the amount of the
sums due under the Contract reaches 20% of the original amount of the
SECTION 2
Conditions of Contract
CC/12
Proposed Governor’s Mansion, Meru County
Contract. It shall have been completed by the time 80% of this amount
is reached.
The amount to be repaid by way of successive deductions shall be calculated by
means of the formula:
R
=
A(x1 – x11)
Where:
d)
24.
80 – 20
R
=
the amount to be reimbursed
A
=
the amount of the advance which has been granted
X1
=
the amount of proposed cumulative payments as a
percentage of the original amount of the Contract. This
figure will exceed 20% but not exceed 80%.
X11
=
the amount of the previous cumulative payments as a
percentage of the original amount of the Contract. This
figure will be below 80%but not less than 20%.
with each reimbursement the counterpart of the directly liable
guarantee may be reduced accordingly.
Compensation Events
24.1 The following issues shall constitute Compensation Events:
(a)
The Employer does not give access to a part of the Site by the Site
Possession Date stated in the Appendix to Conditions of Contract.
(b)
The Employer modifies the List of Other Contractors, etc., in a way that
affects the Work of the Contractor under the Contract.
(c)
The Project Manager orders a delay or does not issue drawings,
specifications or instructions required for execution of the Works on
time.
(d)
The Project Manager instructs the Contractor to uncover or to carry out
additional tests upon the Work, which is then found to have no defects.
(e)
The Project Manager unreasonably does not approve a subcontract to be
let.
SECTION 2
Conditions of Contract
CC/13
Proposed Governor’s Mansion, Meru County
(f)
Ground conditions are substantially more adverse than could
reasonably have been assumed before issuance of the Letter of
Acceptance from the information issued to tenderers (including the Site
investigation reports), from information available publicly and from a
visual inspection of the Site.
(g)
The Project Manager gives an instruction for dealing with an unforeseen
condition, caused by the Employer or additional work required for safety
or other reasons.
(h)
Other contractors, public authorities, utilities, or the Employer does not
work within the dates and other constraints stated in the Contract, and
they cause delay or extra cost to the Contractor.
(i)
The effects on the Contractor of any of the Employer’s risks.
(j)
The Project Manager unreasonably delays issuing a Certificate of
Completion.
(k)
Other compensation events described in the Contract or determined by
the Project Manager shall apply.
24.2 If a compensation event would cause additional cost or would prevent the
Work being completed before the Intended Completion Date, the Contract
Price shall be increased and/or the Intended Completion Date shall be
extended. The Project Manager shall decide whether and by how much the
Contract Price shall be increased and whether and by how much the Intended
Completion Date shall be extended.
24.3 As soon as information demonstrating the effect of each compensation event
upon the Contractor’s forecast cost has been provided by the Contractor, it
shall be assessed by the Project Manager, and the Contract Price shall be
adjusted accordingly. If the Contractor’s forecast is deemed unreasonable, the
Project Manager shall adjust the Contract Price based on the Project
Manager’s own forecast. The
Project Manager will assume that the Contractor will react competently and
promptly to the event.
24.4 The Contractor shall not be entitled to compensation to the extent that the
Employer’s interests are adversely affected by the Contractor not having given
early warning or not having co-operated with the Project Manager.
24.5 Prices shall be adjusted for fluctuations in the cost of inputs only if provided
for in the Appendix to Conditions of Contract.
SECTION 2
Conditions of Contract
CC/14
Proposed Governor’s Mansion, Meru County
24.6 The Contractor shall give written notice to the Project Manager of his intention
to make a claim within thirty days after the event giving rise to the claim has
first arisen. The claim shall be submitted within thirty days thereafter.
Provided always that should the event giving rise to the claim of continuing
effect, the Contractor shall submit an interim claim within the said thirty days
and a final claim within thirty days of the end of the event giving rise to the
claim.
25.
Price Adjustment
25.1 The Project Manager shall adjust the Contract Price if taxes, duties and other
levies are changed between the date 30 days before the submission of tenders
for the Contract and the date of Completion. The adjustment shall be the
change in the amount of tax payable by the Contractor.
25.2 The Contract Price shall be deemed to be based on exchange rates current at
the date of tender submission in calculating the cost to the Contractor of
materials to be specifically imported (by express provisions in the Contract
Bills of Quantities or Specifications) for permanent incorporation in the Works.
Unless otherwise stated in the Contract, if at any time during the period of the
Contract exchange rates shall be varied and this shall affect the cost to the
Contractor of such materials, then the Project Manager shall assess the net
difference in the cost of such materials. Any amount from time to time so
assessed shall be added to or deducted from the Contract Price, as the case
may be.
25.3 Unless otherwise stated in the Contract, the Contract Price shall be deemed to
have been calculated in the manner set out below and in sub-clauses 25.4 and
25.5 and shall be subject to adjustment in the events specified thereunder;
(i)
The prices contained in the Contract Bills of Quantities shall be deemed
to be based upon the rates of wages and other emoluments and
expenses as determined by the Joint Building Council of Kenya (J.B.C.)
and set out in the schedule of basic rates issued 30 days before the date
for submission of tenders. A copy of the schedule used by the
Contractor in his pricing shall be attached in the Appendix to
Conditions of Contract.
(ii)
Upon J.B.C. determining that any of the said rates of wages or other
emoluments and expenses are increased or decreased, then the
Contract Price shall be increased or decreased by the amount assessed
by the Project Manager based upon the difference, expressed as a
percentage, between the rate set out in the schedule of basic rates
issued 30 days before the date for submission of tenders and the rate
published by the J.B.C. and applied to the quantum of labour
SECTION 2
Conditions of Contract
CC/15
Proposed Governor’s Mansion, Meru County
incorporated within the amount of Work remaining to be executed at the
date of publication of such increase or decrease.
(iii)
No adjustment shall be made in respect of changes in the rates of wages
and other emoluments and expenses which occur after the date of
Completion except during such other period as may be granted as an
extension of time under clause 17.0 of these Conditions.
25.4 The prices contained in the Contract Bills of Quantities shall be deemed to be
based upon the basic prices of materials to be permanently incorporated in
the Works as determined by the J.B.C. and set out in the schedule of basic
rates issued 30 days before the date for submission of tenders. A copy of the
schedule used by the Contractor in his pricing shall be attached in the
Appendix to Conditions of Contract.
25.5 Upon the J.B.C. determining that any of the said basic prices are increased or
decreased then the Contract Price shall be increased or decreased by the
amount to be assessed by the Project Manager based upon the difference
between the price set out in the schedule of basic rates issued 30 days before
the date for submission of tenders and the rate published by the J.B.C. and
applied to the quantum of the relevant materials which have not been taken
into account in arriving at the amount of any interim certificate under clause
23 of these Conditions issued before the date of publication of such increase
or decrease.
25.6 No adjustment shall be made in respect of changes in basic prices of materials
which occur after the date for Completion except during such other period as
may be granted as an extension of time under clause 17.0 of these Conditions.
25.7 The provisions of sub-clause 25.1 to 25.2 herein shall not apply in respect of
any materials included in the schedule of basic rates.
26.
Retention
26.1 The Employer shall retain from each payment due to the Contractor the
proportion stated in the Appendix to Conditions of Contract until Completion
of the whole of the Works. On Completion of the whole of the Works, half the
total amount retained shall be repaid to the Contractor and the remaining half
when the Defects Liability Period has passed and the Project Manager has
certified that all defects notified to the Contractor before the end of this period
have been corrected.
SECTION 2
Conditions of Contract
CC/16
Proposed Governor’s Mansion, Meru County
27.
Liquidated Damages
27.1 The Contractor shall pay liquidated damages to the Employer at the rate
stated in the Appendix to Conditions of Contract for each day that the actual
27.2 Completion Date is later than the Intended Completion Date. The Employer
may deduct liquidated damages from payments due to the Contractor.
Payment of liquidated damages shall not alter the Contractor’s liabilities.
27.3 If the Intended Completion Date is extended after liquidated damages have
been paid, the Project Manager shall correct any overpayment of liquidated
damages by the Contractor by adjusting the next payment certificate. The
Contractor shall be paid interest on the overpayment, calculated from the date
of payment to the date of repayment, at the rate specified in Clause 23.30
28.
Securities
28.1 The Performance Security shall be provided to the Employer no later than the
date specified in the Letter of Acceptance and shall be issued in an amount
and form and by a reputable bank acceptable to the Employer, and
denominated in Kenya Shillings. The Performance Security shall be valid until
a date 30 days beyond the date of issue of the Certificate of Completion.
29.
Dayworks
29.1 If applicable, the Dayworks rates in the Contractor’s tender shall be used for
small additional amounts of Work only when the Project Manager has given
written instructions in advance for additional work to be paid for in that way.
29.2 All work to be paid for as Dayworks shall be recorded by the Contractor on
Forms approved by the Project Manager. Each completed form shall be
verified and signed by the Project Manager within two days of the Work being
done.
29.3 The Contractor shall be paid for Dayworks subject to obtaining signed
Dayworks forms.
30.
Liability and Insurance
30.1 From the Start Date until the Defects Correction Certificate has been issued,
the following are the Employer’s risks:
(a)
SECTION 2
Conditions of Contract
The risk of personal injury, death or loss of or damage to property
(excluding the Works, Plant, Materials and Equipment), which are due
to;
CC/17
Proposed Governor’s Mansion, Meru County
(b)
(i)
use or occupation of the Site by the Works or for the purpose of
the Works, which is the unavoidable result of the Works, or
(ii)
negligence, breach of statutory duty or interference with any legal
right by the Employer or by any person employed by or contracted
to him except the Contractor.
The risk of damage to the Works, Plant, Materials, and Equipment to the
extent that it is due to a fault of the Employer or in Employer’s design,
or due to war or radioactive contamination directly affecting the place
where the Works are being executed.
30.2 From the Completion Date until the Defects Correction Certificate has been
issued, the risk of loss of or damage to the Works, Plant, and Materials is the
Employer’s risk except loss or damage due to;
(a)
a defect which existed on or before the Completion Date.
(b)
an event occurring before the Completion Date, which was not itself the
Employer’s risk
(c)
the activities of the Contractor on the Site after the Completion Date.
30.3 From the Start Date until the Defects Correction Certificate has been issued,
the risks of personal injury, death and loss of or damage to property
(including, without limitation, the Works, Plant, Materials, and Equipment)
which are not Employer’s risk are Contractor’s risks.
The Contractor shall provide, in the joint names of the Employer and the
Contractor, insurance cover from the Start Date to the end of the Defects
Liability Period, in the amounts stated in the Appendix to Conditions of
Contract for the following events;
(a)
loss of or damage to the Works, Plant, and Materials;
(b)
loss of or damage to Equipment;
(c)
loss of or damage to property (except the Works, Plant, Materials, and
Equipment) in connection with the Contract, and
(d)
personal injury or death.
30.4 Policies and certificates for insurance shall be delivered by the Contractor to
the Project Manager for the Project Manager’s approval before the Start Date.
All such insurance shall provide for compensation required to rectify the loss
or damage incurred.
30.5 If the Contractor does not provide any of the policies and certificates required,
the Employer may effect the insurance which the Contractor should have
provided and recover the premiums from payments otherwise due to the
SECTION 2
Conditions of Contract
CC/18
Proposed Governor’s Mansion, Meru County
Contractor or, if no payment is due, the payment of the premiums shall be a
debt due.
30.6 Alterations to the terms of insurance shall not be made without the approval
of the Project Manager. Both parties shall comply with any conditions of
insurance policies.
31.
Completion and taking over
31.1 Upon deciding that the Works are complete, the Contractor shall issue a
written request to the Project Manager to issue a Certificate of Completion of
the Works. The Employer shall take over the Site and the Works within seven
[7] days of the Project Manager issuing a Certificate of Completion.
32.
Final Account
32.1 The Contractor shall issue the Project Manager with a detailed account of the
total amount that the Contractor considers payable to him by the Employer
under the Contract before the end of the Defects Liability Period. The Project
Manager shall issue a Defects Liability Certificate and certify any final
payment that is due to the Contractor within 30 days of receiving the
Contractor’s account if it is correct and complete. If it is not, the Project
Manager shall issue within 30 days a schedule that states the scope of the
corrections or additions that are necessary. If the final account is still
unsatisfactory after it has been resubmitted, the Project Manager shall decide
on the amount payable to the Contractor and issue a Payment Certificate. The
Employer shall pay the Contractor the amount due in the Final Certificate
within 60 days.
33.
Termination
33.1 The Employer or the Contractor may terminate the Contract if the other party
causes a fundamental breach of the Contract. These fundamental breaches of
Contract shall include, but shall not be limited to, the following;
(a)
the Contractor stops work for 30 days when no stoppage of work is
shown on the current program and the stoppage has not been
authorized by the Project Manager;
(b)
the Project Manager instructs the Contractor to delay the progress of the
Works, and the instruction is not withdrawn within 30 days;
(c)
the Contractor is declared bankrupt or goes into liquidation other than
for a reconstruction or amalgamation;
SECTION 2
Conditions of Contract
CC/19
Proposed Governor’s Mansion, Meru County
(d)
a payment certified by the Project Manager is not paid by the Employer
to the Contractor within 30 days (for Interim Certificate) or 60 days (for
Final Certificate)of issue.
(e)
the Project Manager gives notice that failure to correct a particular
defect is a fundamental breach of Contract and the Contractor fails to
correct it within a reasonable period of time determined by the Project
Manager;
(f)
the Contractor does not maintain a security, which is required.
33.2 When either party to the Contract gives notice of a breach of Contract to the
Project Manager for a cause other than those listed under Clause 33.1 above,
the Project Manager shall decide whether the breach is fundamental or not.
33.3 Notwithstanding the above, the Employer may terminate the Contract for
convenience.
33.4 If the Contract is terminated, the Contractor shall stop work immediately,
make the Site safe and secure, and leave the Site as soon as reasonably
possible.
The Project Manager shall immediately thereafter arrange for a meeting for the
purpose of taking record of the Works executed and materials, goods,
equipment and temporary buildings on Site.
34.
Payment Upon Termination
34.1 If the Contract is terminated because of a fundamental breach of Contract by
the Contractor, the Project Manager shall issue a certificate for the value of the
Work done and materials ordered and delivered to Site up to the date of the
issue of the certificate. Additional liquidated damages shall not apply. If the
total amount due to the Employer exceeds any payment due to the Contractor,
the difference shall be a debt payable by the Contractor.
34.2 If the Contract is terminated for the Employer’s convenience or because of a
fundamental breach of Contract by the Employer, the Project Manager shall
issue a certificate for the value of the Work done, materials ordered, the
reasonable cost of removal of equipment, repatriation of the Contractor’s
personnel employed solely on the
Works, and the Contractor’s costs of protecting and securing the Works.
34.3 The Employer may employ and pay other persons to carry out and complete
the Works and to rectify any defects and may enter upon the Works and use
all materials on the Site, plant, equipment and temporary works.
SECTION 2
Conditions of Contract
CC/20
Proposed Governor’s Mansion, Meru County
34.4 The Contractor shall, during the execution or after the completion of the
Works under this clause remove from the Site as and when required, within
such reasonable time as the Project Manager may in writing specify, any
temporary buildings, plant, machinery, appliances, goods or materials
belonging to or hired by him, and in default the Employer may (without being
responsible for any loss or damage) remove and sell any such property of the
Contractor, holding the proceeds less all costs incurred to the credit of the
Contractor.
Until after completion of the Works under this clause the Employer shall not
be bound by any other provision of this Contract to make any payment to the
Contractor, but upon such completion as aforesaid and the verification within
a reasonable time of the accounts therefore the Project Manager shall certify
the amount of expenses properly incurred by the Employer and, if such
amount added to the money paid to the Contractor before such determination
exceeds the total amount which would have been payable on due completion
in accordance with this Contract the difference shall be a debt payable to the
Employer by the Contractor; and if the said amount added to the said money
be less than the said total amount, the difference shall be a debt payable by
the Employer to the Contractor.
35.
Release from Performance
35.1 If the Contract is frustrated by the outbreak of war or by any other event
entirely outside the control of either the Employer or the Contractor, the
Project Manager shall certify that the Contract has been frustrated. The
Contractor shall make the Site safe and stop Work as quickly as possible after
receiving this certificate and shall be paid for all Work carried out before
receiving it.
36.
Corrupt gifts and payments of commission
The Contractor shall not;
(a)
Offer or give or agree to give to any person in the service of the Employer any
gift or consideration of any kind as an inducement or reward for doing or
forbearing to do or for having done or forborne to do any act in relation to the
obtaining or execution of this or any other Contract for the Employer or for
showing or forbearing to show favour or disfavour to any person in relation to
this or any other contract for the Employer.
(b)
Enter into this or any other contract with the Employer in connection with
which commission has been paid or agreed to be paid by him or on his behalf
SECTION 2
Conditions of Contract
CC/21
Proposed Governor’s Mansion, Meru County
or to his knowledge, unless before the Contract is made particulars of any
such commission and of the terms and conditions of any agreement for the
payment thereof have been disclosed in writing to the Employer.
Any breach of this Condition by the Contractor or by anyone employed by him
or acting on his behalf (whether with or without the knowledge of the
Contractor) shall be an offence under the provisions of the Public Procurement
Regulations issued under The Exchequer and Audit Act Cap 412 of the Laws
of Kenya.
37.
Settlement Of Disputes
37.1 In case any dispute or difference shall arise between the Employer or the
Project Manager on his behalf and the Contractor, either during the progress
or after the completion or termination of the Works, such dispute shall be
notified in writing by either party to the other with a request to submit it to
arbitration and to concur in the appointment of an Arbitrator within thirty
days of the notice. The dispute shall be referred to the arbitration and final
decision of a person to be agreed between the parties. Failing agreement to
concur in the appointment of an Arbitrator, the Arbitrator shall be appointed
by the Chairman or Vice Chairman of any of the following professional
institutions;
(i)
Architectural Association of Kenya
(ii)
Institute of Quantity Surveyors of Kenya
(iii)
Association of Consulting Engineers of Kenya
(iv)
Chartered Institute of Arbitrators (Kenya Branch)
(v)
Institution of Engineers of Kenya
On the request of the applying party. The institution written to first by the
aggrieved party shall take precedence over all other institutions.
37.2 The arbitration may be on the construction of this Contract or on any matter
or thing of whatsoever nature arising thereunder or in connection therewith,
including any matter or thing left by this Contract to the discretion of the
Project Manager, or the withholding by the Project Manager of any certificate
to which the Contractor may claim to be entitled to or the measurement and
valuation referred to in clause 23.0 of these conditions, or the rights and
liabilities of the parties subsequent to the termination of Contract.
SECTION 2
Conditions of Contract
CC/22
Proposed Governor’s Mansion, Meru County
37.3 Provided that no arbitration proceedings shall be commenced on any dispute
or difference where notice of a dispute or difference has not been given by the
applying party within ninety days of the occurrence or discovery of the matter
or issue giving rise to the dispute.
37.4 Notwithstanding the issue of a notice as stated above, the arbitration of such a
dispute or difference shall not commence unless an attempt has in the first
instance been made by the parties to settle such dispute or difference
amicably with or without the assistance of third parties. Proof of such attempt
shall be required.
37.5 Notwithstanding anything stated herein the following matters may be referred
to arbitration before the practical completion of the Works or abandonment of
the Works or termination of the Contract by either party:
37.5.1
The appointment of a replacement Project Manager upon the
said person ceasing to act.
37.5.2
Whether or not the issue of an instruction by the Project
Manager is empowered by these Conditions.
37.5.3
Whether or not a certificate has been improperly withheld
or is not in accordance with these Conditions.
37.5.4
Any dispute or difference arising in respect of war risks
or war damage.
37.6 All other matters shall only be referred to arbitration after the completion or
alleged completion of the Works or termination or alleged termination of the
Contract, unless the Employer and the Contractor agree otherwise in writing.
37.7 The Arbitrator shall, without prejudice to the generality of his powers, have
powers to direct such measurements, computations, tests or valuations as
may in his opinion be desirable in order to determine the rights of the parties
and assess and award any sums which ought to have been the subject of or
included in any certificate.
37.8 The Arbitrator shall, without prejudice to the generality of his powers, have
powers to open up, review and revise any certificate, opinion, decision,
requirement or notice and to determine all matters in dispute which shall be
submitted to him in the same manner as if no such certificate, opinion,
decision requirement or notice had been given.
37.9 The award of such Arbitrator shall be final and binding upon the parties.
SECTION 2
Conditions of Contract
CC/23
Proposed Governor’s Mansion, Meru County
APPENDIX TO CONDITIONS OF CONTRACT
THE EMPLOYER IS
Name:
MERU COUNTY
Address: P. O. Box 120 - 60200
Name of Authorized Representative: ____________________________________________
Telephone: _______________________
Facsimile: ________________________
The Project Manager is
Name:
Address:
Telephone:
Facsimile: ________________________
The name (and identification number) of the Contract is THE PROPOSED GOVERNOR’S
MANSION FOR THE MERU COUNTY AT MERU
Contract Ref: MCG/ONT/002/2014-2015
The Works consist of an Executive Modern Mansion, Services installation and External
Works
The Start Date shall be to be agreed
The Intended Completion Date for the whole of the Works shall be LEFT COMPETITIVE
BUT SHALL NOT EXCEED 78 WEEKS. However, the Tenderer is required to determine
and state their proposed time.
The following documents also form part of the Contract:
_________________________________________________________________________________
_________________________________________________________________________________
Appendix to
Conditions of Contract
ACC/1
The Contractor shall submit a revised program for the Works within FOURTEEN (14) days
of delivery of the Letter of Acceptance.
The Site Possession Date shall be AGREED
The Site is located at MERU TOWN IN MERU and is defined in drawings
nos._________________________________________________________
_________________________________________________________________________________
The Defects Liability period is 180 days.
Other Contractors, utilities etc., to be engaged by the Employer on the Site
Include those for the execution of;
1.____________________________________________
2.______________________________________________
3._____________________________________________
4._____________________________________________
The minimum insurance covers shall be;
1. The minimum cover for insurance of the Works and of Plant and Materials in
respect of the Contractor’s faulty design is 20% percent of contract sum
2. The minimum cover for loss or damage to Equipment is 10% percent of Contract Sum
3.
The minimum for insurance of other property is 10% percent of Contract Sum
4.
The minimum cover for personal injury or death insurance

For the Contractor’s employees is 10% of Contract Sum

And for other people is 5% of Contract Sum
The following events shall also be Compensation Events:
1.
N/A
2.
__________________________________________________________________________
3.
__________________________________________________________________________
4.
__________________________________________________________________________
Appendix to
Conditions of Contract
ACC/2
The period between Program updates is 30 days.
The amount to be withheld for late submission of an updated Program is 10% of value of
subsequent certificate
The proportion of payments retained is 10% percent.
The Price Adjustment Clause NOT (shall/shall not) apply
The liquidated damages for the whole of the Works is Kshs. 100,000 (per week or part
thereof)
The Performance Security shall be for the following minimum amounts equivalent as a
percentage of the Contract Price 10% percent (%)
The Completion Period for the Works is competitive Tenderer to insert [Weeks]
The rate of exchange for calculation of foreign currency payments is N/A.
The schedule of basic rates used in pricing by the Contractor is as attached [Contractor to
attach].
Advance Payment shall not be granted.
Appendix to
Conditions of Contract
ACC/3
SECTION 1 - EXCAVATION AND EARTH WORKS
1. Nature of Excavation
The contractor must ascertain for himself the nature of the material to be excavated and price the work accordingly.
No extra payment will be made beyond the Contract Sum for any alleged ignorance in this respect.
2. Excavation Generally
It is the responsibility of the contactor to check the commencing levels and determine depths of excavation as no extra
payment will be made in respect of any alleged excavations carried out due to the commencing levels being above
that shown upon the drawings without the prior written agreement of the Structural Engineer.
3. Site Clearance
The Contractors shall clear the construction areas within the site of all bushes, roots, and brush boulders, natural
obstructions rubbish and any other natural or artificial obstructions which would interfere with construction of building,
roads, paths and drains.
4. Over-site Excavation
Over-site excavations over the areas of building shall be done up-to and including removal of vegetable soil. The
excavated material is to be spread around the site as directed.
Excavated material suitable for backfilling around foundations and for making up levels under roads, floors etc, is
to be kept separate from soil spoil heaps and to be re-used as directed or spread and leveled on the site at the end of
excavation operation when found to be surplus. Vegetable soil is not to be used for backfilling around foundations.
5. Excavation for Foundations and Structures
Excavations for foundations and the reinforced concrete structure shall be to the widths, depths and levels to
accommodate the structure shown on the drawings and to the satisfaction of the Structural Engineer. No extra payment
shall be allowed for working space including space for formwork and use of planking and strutting.
6. Inspection
When the excavations have been made to the sizes and depths required from the drawings, the Structural Engineer
shall be called to the site immediately for inspection, and upon approval, the Contractor shall proceed with the work to
prevent any natural ground moisture from drying out and to prevent rain water or other surface water draining into the
foundations. The excavations are to be left open until any variations in depth has been agreed.
7. Excavations below Required Depths.
Should any excavations be made below the levels or lines shown on the drawings or otherwise required by the
Structural Engineer, the Contractor must fill up the resultant over- excavation to the proper levels or lines with the
concrete class “E” at his own expenses (see “Concrete Work”).
8. Filling
Filling to make up levels under floors shall be approved granular materials arising from excavations which has been
carefully separated from other excavated material for it suitability for the purpose. It shall be entirely free from
organic matter, mud, rubbish or lumps exceeding a size, which will pass through a 100mm-dianeter ring in every
direction. Filling shall be placed in layers not exceeding 150 mm thick and shall be rolled with a pedestrian operated
power roller of at least 700 kg in weight. The rolling process shall be continued for every layer until no further
noticeable Consolidation takes palace.
9. Return, fill in and Ram
Return fill in and ram suitable filling material as described above, around foundations and other concrete structure in
layers not exceeding 150mm thick and carefully ram and consolidate with power rammer. No filling in shall be
executed until concrete foundations etc. have been inspected and approved by the Structural Engineer.
Regardless of the means of backfilling and compaction adopted, the Contractor is responsible not only for the standard of the
work but also for any possible damage of the permanent work or adjacent structure.
Specifications 1
10. Leveling
The quotation must include for leveling and preparing the ground for concrete or other works including ramming or rolling
bottoms of excavations where necessary.
11. Soil Sterilization
Anti- termite treatment is to be carried out by an approved specialist firm who is required, upon completion of the
soil sterilization, to furnish a written 10-year guarantee certifying the following:
a. That the chemicals applied comply with the requirements specified herein for chemical concentration and rates of
application.
b. That the treatment will remain effective against termite infestation for a period of ten years.
c. The free treatment by the firm of any areas showing signs of infestation before the expiry of the ten year period.
The chemicals to be used include the following, or any other equal and approved chemical:
1. Aldrin 0.5% applied in oil solution or water emulsion.
2. Benzene hexachloride, 0.8 of gamma isomer applied in oil solution or water emulsion.
3. Chloridane 1.0% applied in solution or water emulsion
4. Dieldrin 0.5% applied inoil solution or water emulsion
5. Lindane; 0.8% in oil solution or wate emulsion
6. Pentachlorophenol; 5% in oil solution.
7. Trichlorobenzene; 1 part to 3 parts oil.
Some of the chemicals listed above are toxic to animals and plant life and must, therefore, be applied only with caution by
an experienced person. Where individual water supply systems are proposed precautions must be taken to prevent infiltering
and endangering the water supply. Treatment shall not be made when soils or fill is excessively wet or immediately after
heavy rain.
Precautions must also be taken to prevent disturbance of the treatment by animals or human contact with the treated soil.
The treatment areas are to be covered as quickly as possible after treatment.
The rate of application is to be as indicated by the manufacturer and areas measured include those under floor and around
wall and column foundations and around the perimeter of the house
12. Disposal of Surplus Excavated Material
Surplus excavated material will be carted away from the vicinity of the works.
13. Disposal of Water
The contractor shall keep the excavations free from standing water and silt (or excavated material softened
by water) and he shall include for the cost of pumping, construction of temporary drains, soak-away pits,
etc, as deemed necessary to achieve this. If spring or running water is encountered, the cost of any pumping
ordered by the Structural Engineer will be paid for by the Contractor.
14. Planking and Strutting
Sides of all excavations must be supported in order to prevent falls from or collapse of the earth face. The
term “planking and Strutting” is deemed to include any method which the Contractor elects, but with the
prior approval of the Engineer, to adopt to uphold, protect and maintain the sides of excavations. The
Contractor will be responsible for any consequences of his failure in this respect including clearing away
fallen material and any extra concrete or other works including formwork ordered by the Structural engineer
due to such failure.
15. Hard-core
Hard-core shall be hard crushed stone to pass a 100mm ring in al directions. No sand, quarry dust or fine
material will be permitted. All hard-core beds shall be topped with a layer of fine stone or aggregate
minimum size 12 mm to fill the void on the surface too receive concrete beds. Rates for hard-core shall
include for leveling or finishing or laying to falls and consolidating by rolling as described for “filling”
above.
Specifications 2
16. Classification of materials
“Rock” shall mean black trap granite, quartzitic sandstone or other rock of similar hardness which in the Structural
Engineer’s opinion required drilling, wedging and splitting or broken up by means of compressors, jack hammers and
chisels, etc.
“Earth” or “Soft rock” shall mean all ground other than that classified as “rock” and shall include made up ground and any
loose stones or pieces of concrete not exceeding 0.10m3 in volume.
Should the contractor consider that any of the excavations are more difficult in nature than excavation in “Earth” he shall
immediately notify the Quantity Surveyor in writing. Failing such notification, the excavations shall be deemed to be in
“Earth” shall be measured and valued accordingly.
The Contractor may use any method he chooses to excavate any class of materials, but his chosen method of excavation
shall not determine the classification of the excavation.
17. Blasting
NO blasting shall be allowed on site. Should blasting become absolutely necessary, the contractor shall take every
precaution to protect the works and persons and property in the vicinity of works. The contractor shall in such
circumstances obtain written authority of the Engineer. The Contractor will be held responsible for any injury or damage
caused by any blasting operations and shall make good such damage at his own expense.
Specifications 3
SECTION 2 – CONCRETE WORK
1. Materials and Workmanship Generally
The recommendations of the latest British Standards Code of Practice for the Structural use of Reinforced Concrete in
Building shall be deemed to be incorporated in these preambles Clauses unless otherwise specifically stated.
2. Materials Generally
All materials to be used in the works shall conform as to quality and description as specified hereunder and shall be
equal to approved samples. In particular, no materials shall be used until approved samples have been supplied to the
Consulting Engineer for approval at least one week before ordering in bulk and delivery to the site. Any materials
delivered to the site which has not been previously approved by the Structural Engineer shall be the Contractor’s
liability. All materials shall be transported, handled and stored on site so as to preclude damage, deterioration or
contamination. All condemned materials are to be removed from the site within 24 hours.
3. Cement
The cement, unless otherwise specified on the drawing shall be ordinary Portland cement of approved manufacture,
delivered in the manufacturer’s bags and shall comply in all respects with the requirements of the latest British Standard
12. The consignments of the cement shall be delivered in scaled bags and shall be stored on the site so as too be used in
the order in which they are delivered. The Structural Engineer shall have the right to take samples for testing in
accordance with B.S. 12 and the Contractor is to obtain current certificates of tests from the manufacturer prior to bulk
deliveries. Under no circumstances is high Alumina cement too be used.
4. Aggregate Generally
All aggregate shall be from approved, reputable sources and shall be strong, hard, and durable, of limited porosity and
free from dust, soft materials, earth or other extraneous matter, and washed and or screened by the contractor if so
required by the Structural Engineer. Samples shall be provided as often as called upon by the Structural Engineer for
Testing in accordance with BS. 882. Only approved materials shall be used.
Graded samples of all types of aggregate shall, after approval, be kept on site behind glass for visual checking of
subsequent deliveries for grading, shape and where applicable, colour.
Aggregate shall be stored on site on paved areas with divisions between each type of aggregate, and shall be used in the
order in which they are received on site. No aggregate shall be stored directly on the ground.
5. Fine Aggregates
The Contractor shall ensure that the grading of fine aggregates shall be such that not more than 10% by weight shall
exceed 5 mm in size and not that 10% by weight shall pass a sieve BS. No.100. Between these limits the grading shall
conform to the grading for either zone 1, 2, or 3 (BS.882).
6. Coarse Aggregate
Course aggregate shall bee clean, well-graded natural gravel or crushed stone from an approved quarry and washed if
required by the Structural Engineer. The pieces shall be angular or rounded in shape and shall have granular or
crystalline or smooth (but not Glassy) non-powdery surface. Flaky and laminated pieces, mica and shale shall only be
present in such quantities as not affect adversely the strength and durability of the concrete.
The four nominal aggregate sizes shall be 40 mm; 20mm; 15mm; 10mm and the grading when analyzed as described in
BS.812 shall be within the limits given in BS. 882.
Specifications 4
7. Water
Water used for mixing of concrete, washing out of shuttering and similar purposes shall be clean fresh and free from
organic impurities in amounts likely to impair the quality of the concrete.
8. Steel Reinforcement
Steel for reinforced concrete shall comply with the following specifications:
Mild steel rod reinforcement shall comply with BS.4449
High tensile steel reinforcement shall be either cold worked deformed steel bars of circular octagonal section complying
with BS.4461 or hot rolled deformed high tensile bars having a guarantee minimum yield stress of 4200 kg/sq.cm and
other physical qualities in accordance with BS. 4449. Welded steel fabric reinforcement shall comply with BS. 4483
Code of Practice C.P 110, for the structure use of reinforced concrete in buildings.
All steel reinforcement shall be supplied by an approved manufacturer, and the Contractor may be required to obtain a
manufacturer’s test certificate in respect of steel reinforcement supplied. In absence of such a certificate, the Contractor
may be required to submit samples to be tested at the Contractor’s expense in such manner as the Engineer may
determine. The steel shall be stored so that it is kept clean and reasonably free from rust.
The placing of all reinforcement shall be checked by the Engineer and in no circumstances is concrete to be deposited
around any steel that has not been passed. At least twenty four hours notice shall be given to the Engineer that
reinforcement will be ready for inspection.
9. Bending and fixing of Reinforcement
All bending, cutting and fixing shall be in compliance with the British Standard Code of Practice. C. P. 110. Bending
Schedules are incorporated in the Contract Drawings or shall be obtained on request from the Structural Engineer.
The number, size, form and position of all reinforcements shall, unless otherwise directed or permitted by the Engineer,
be strictly in accordance with the drawings. Bars shall be of the required lengths, and lapping, except where indicated
on the Drawing, is not permitted unless approved by the Engineer.
Overall dimensions shall not be exceeded and shall not be less than 6mm below the required dimensions. The sizes of
links and the likes shall be within tolerance of 3 mm under or over the specified dimensions. Any tolerances in the top
length of the bar as cut shall be taken up in the end hooks or other approved portions of the bar. The internal radius of
the bends at corners of links and the like shall equal half the diameter of the bar embraced by the link.
At specified locations, as directed by the Engineer, reinforcing bars to be lapped at staggered locations so as not to
reduce the effective spacing between bars to less than two times the bar diameter or 5mm plus the maximum size of
coarse aggregate, as referred in BS 8110.
The steel reinforcement shall be assembled and fixed in the form of a rigid cage. To prevent displacement before or
during concreting the bars shall be secured to each other with approved wire. Concrete distance blocks shall, unless
otherwise directed, be used between the reinforcement and the bottom and sides of the forms to ensure correct concrete
cover to the bars, as specified on the drawings. The specified cover shall be provided and maintained within the
specified tolerance.
The minimum clear distance between adjacent bars shall be 25 mm horizontally and 25 mm vertically. Spacer bars shall
be inserted at such intervals that the bars do not have perceptible sag.
Great care must be taken to ensure the correct positioning of beam and column starter bars and to secure projecting bars
against displacement both during and after concreting.
At the time of fixing and when concrete is being placed, all reinforcement shall be free from oil, paint, grease, excessive
dust and scale or any other coating, which will destroy its bond with the concrete.
Specifications 5
10. Wrought Form Work
Form work described as wrought shall be constructed of, or lines with, 100mm wide sawn boards well cramped together,
boards running horizontally on fascia, down drains, etc. as shown on drawings. Boards on columns to run vertically.
An exposed vertical aris to be formed with 20mm x 20mm triangular bead set in corner of formwork
11. Concrete Grades
Concrete must comply with the requirements set out in the following table according to the grade:
Grade
nominal 1
Mix
Fine
Course
Test
Minimum
resistance to
crushing at 28
days after mixing
(works test)
Kg/sq/cm
Test
1
2
210
315
6
0.50
1.5
3
175
262
20
0.55
C 1:2:4
2
4
140
210
20
0.60
D 1:3:6
3
6
84
140
40
0.60
E 1:4:8
4
8
65
100
40
0.60
A 1:1:2
B 1:1:5:3
Nominal
cubic Meter of
Aggregate per
1500 kg of
cement
Minimum resistance to
crushing at 7 days after
mixing (works test)
Kg/sq/cm
Size of
coarse
aggregate
mm
Maximum
water ratio
by weight
12. Preliminary Cube Tests
The contractor shall specify the source from which the aggregate will be obtained and shall deliver at his own cost
sufficient material to enable preliminary cube tests to be carried out and approved by Engineer. The Contractor will be
responsible for submitting his proposals for the concrete mix proportions together with aggregate grade curves to the
Engineer for approval and for the payment of the fees of an approved Testing Authority in carrying out the crushing
tests. The strength of the preliminary cubes must be a minimum of 33% above those in the table which are the minimum
works strength.
The approval of any mix by the Engineer will not relieve the Contractor of the responsibility for ensuring that all
concrete used in the works obtain the minimum works strength shown above. In proportioning the concrete and the
quantities of fine and coarse aggregate by either volume or weight, due allowance shall be made for the moisture content
of the aggregate.
Only sufficient water shall be added to the cement and aggregate during mixing to produce a concrete having sufficient
workability to enable it to be well consolidated, to be worked into the corners of the shuttering and around
reinforcement, too give the specified surface finish and to have the specified strength. When a suitable amount of water
has been determined the resulting consistency shall be maintained throughout the corresponding parts of the work and
the slump test or compaction factor test shall be carried out from time to time to ensure the maintenance of this
consistency. In no case should the slump be more than 65 mm as determined by the slump test nor should the
compaction factor be more than 0.87 as determined by the standard compaction factor test as described in BS. 1881.
Should the contractor wish to use patent, plasticising compounds or other admixes, those shall be approved by Engineer
and be used in accordance with the manufacturer’s publications.
13. Work Cube Test
Work cube tests shall be made throughout the Contract. Each cube shall be described with the date of manufacture,
location and identification mark. A record shall be kept for each batch of cubes showing the position in the works which
the concrete represents, the date of manufacture, the mixture and the slump of the concrete, particulars of the cement and
aggregates used, a statement of whether or not the cubes were vibrated and other; information relating to the subsequent
history of the cubes
Specifications 6
The cubes shall be made, cured and tested in accordance with the requirements of BS. 1881 when directed by the
Engineer and in his presence or that of the Approved Testing Authority. A sample of concrete shall be taken at random
on 8 separate occasions during each of the first 5 days of using the mix.
Thereafter at least one sample shall be taken on each day any concrete of that particular mix is used. From each sample
four cubes shall be made, two for testing at 7 days and two for testing at 28 days. The works cube results shall be
examined both individually and in consecutive (but not overlapping) sets of four, for which the average and the range of
each set are calculated
The mix proportions shall be modified to increase the strength if, in the first and consecuted (but not overlapping) sets
any of the following conditions are not satisfied:




Not more than 2 individual results of the 40 cube tests should fall below the specified works cube strength.
No value of the range in any set should exceed 4 times the designed standard deviation.
No more than one set should have any average which is less than the specified strength plus 11/3 times the
designed standard deviation;
No value of the average for any set should be less than the specified strength plus the designed standard
deviation.
After 10 consecutive sets of results have been obtained the overall average and the standard deviation of the 40 results
shall be calculated and any appropriate modification made.
Subsequently, if any of the foregoing conditions are satisfied, the overall average and the standard deviation of the
previous consecutive 40 results, including the non-complying sets, should be calculated and the appropriate steps taken
if the overall average strength minus twice the standard deviation is less than the specified work cube strength.
14.
Quality Control Requirements
Supervision
A competent person shall be employed whose duty shall be to supervise all stages in the preparation and placing of
concrete. He shall supervise all tests on the materials and cubes and the maintenance and calibration of mixing and
measuring plant. This person shall also be responsible for keeping an accurate record of the dates on which concrete is
poured and where.
Batch and Mixing Plant
The quantities of cement and of fine and coarse aggregates shall be determined by weight. The amount of water
added shall be measured, allowance being made for the water content of the aggregate. The accuracy of weighing and
measuring equipment shall be + 2.5.
Measuring equipment for water shall be maintained in a clean serviceable condition.
15.
Workmanship
15.1
Placing of Reinforcement
Reinforcement shall be accurately placed and maintained in the position described on the drawings or elsewhere to the
entire satisfaction of the Engineer. Bars intended to be in contact at passing point shall be securely wired together with
16 gauge annealed soft iron tying wire. Binders and the like shall tightly embrace the bars and any slackness or
misplacement of bars shall be rectified before the Engineer is called for inspection. Spacer of approved design shall be
used for ensuring the correct positioning of the bars and diagonal wiring shall be provided to ensure rigidity of all
assembled unit of reinforcement. The vertical distance required between successive layers of bars in beam or similar
members shall be maintained by the provision of mild steel spacer bars inserted at such intervals that the main bars do
not perceptibly sag between spacers.
The rates for reinforcement must include for all requisite wiring, spacers and precast blocks to maintain the required
spacing and cover.
Specifications 7
All bars to be bent in accordance with BS. 4466: 1969.
Cover of concrete to the reinforcement shall be, unless shown otherwise:
Columns
- 25 mm minimum to main bars
Base
- 50 mm minimum
Beams
- 25 mm minimum
Slab
- 15 mm minimum
Wall
- 15 mm minimum
Splices to future work shall be covered in a manner approved by the Engineer to prevent rusting and deterioration.
Before any concreting is carried out, the approval of the Engineer as to the correctness of the fixed reinforcement shall
be obtained but such approval shall not remove the responsibility for the correctness of the placing from the Contractor.
During concreting a competent steel fixer shall be in attendance on the concrete and to make minor adjustments to the
position of bars should they become displaced.
15.2
Formwork Generally
All form work and moulds shall be rigidly constructed to accurate shape and dimensions as described on the drawings.
Timber shall be well seasoned, free from loose knots and be of a kind and thickness that will avoid deflection and
warping, remaining true to line and level. Faces in contact with the concrete shall be free from adhering grout,
projecting nails, splits or other defects and shall be coated with an approved mould oil so as to prevent gout adhering to
them, care being taken to prevent such coatings from any contact with the reinforcement
Formwork be braced and strutted to prevent deformation under the weight and pressure of the wet concrete, construction
loads, winds and other forces. The bottom of the beam boxes shall be erected with an upward camber so as to prevent
downward deflection. Maximum tolerances, which will be permitted in the finished concrete work, are as follows:
Dimensions less than 3m
-
+3mm
Dimension between 3m and 15 m -
6mm
Dimensions over
15 m
-
10mm
Joints in the moulds of form work be carefully made so as to prevent leakage of cement grout and particular care shall be
exercised to this respect for moulds in which it is intended to place vibrated concrete. Openings in the formwork for
inspection of the inside and for the escape of water used for washing out accumulated debris shall be formed in such a
manner that they can be effectively closed before placing the concrete.
Formwork connections and joints shall be constructed so as to permit easy removal of the form work, but shall be so
secured as to retain correct shape under pressure exerted by the wet concrete during placing, vibration, setting and
hardening. If any wire ties passing through the concrete or bolts are used, measures shall be taken to prevent rust stains
on the finished work and any holes left by the removal of such ties shall be made good. Formwork shall be provided for
top faces of sloping work and anchored to prevent floatations, but this shall apply only where the slope exceeds 15
degrees. The formwork for beams and slabs shall be erected so that the sides of the beams and soffit of the slab can be
removed without disturbing the beam bottoms. Props for an upper storey immediately below and the lowest prop shall
bear upon work sufficiently strong to carry this load.
If formwork for columns, walls and other deep sections is erected to the full height, one side shall be left open and shall
be built up in sections as placing of the concrete proceeds. Before concreting, bolts and fixings shall be in position.
Cores and other devices used for forming of openings, holes, chases, recesses and other cavities shall be fixed to the
formwork and no subsequent holes shall be cut in any concrete without the Engineer’s approval.
Specifications 8
15.3
Mixing of Concrete
All concrete shall be mixed in batch mixing machines. Hand mixing shall not be permitted. All mixing machines shall
be of the fixed drum type and not smaller in size than AC/28m3 except with the approval of the Engineer in writing.
Tilting drum mixer will not be permitted. The mixer shall be of the type equipped with accurate measuring devices,
designed so that no unauthorized person can tamper with valve or vary the quantity of water delivered once this has been
approved and set. The mixing procedure to be adopted by the contractor shall be approved by the Engineer. Mixing of
each batch shall continue until the concrete is uniform in color and, in any case, for not less than two minutes after all
the materials and water are used in the drum. The entire contents of the drum shall be discharged before the materials
for succeeding batch are fed into the drum. Upon completion of the days mixing, the drum shall be thoroughly cleaned
free of adhering concrete.
15.4.
Distributing of Concrete
The concrete shall be distributed from the mixer to the position required by approved means, which do not cause
separation or otherwise impair the quality of the concrete. All equipment shall be cleaned before commencing mixing
and distribution and be kept free from set concrete. All concrete must be in position and consolidated before the initial
set is commenced and the Contractor shall ascertain the initial setting time for the brand of cement being used and
ensure that his means of distribution are such that it is impossible for concrete to have set prior to placing.
Distribution by means of a mortar pail generally will be permitted, but for the large structures such as slabs, large beds,
ramps and run ways and elsewhere where instructed by the Engineer the minimum requirements shall be wheelbarrows.
15.5
Placing of Concrete
Before placing of concrete commences, the formwork shall be examined and any accumulated water and rubbish lying
therein shall be removed. The concrete shall be placed as near to its permanent position as is practicable and shall not be
worked along the formwork to that position. It shall not be dropped from a height nor handled in a manner likely to
cause separation of the aggregate or loss of cement matrix. In columns and other similar members the bottom shall be in
columns and other similar members the bottom shall be first filled to a depth of between 150 mm and 20mm with a
cement mortar consisting of sand, cement and water with the sand and cement in the same proportions as that specified
for the general mix in that member. The mortar shall have a consistency such that it will work up the formwork and fill
spaces, which may occur due to close spacing of reinforcement in the splice. This mortar must be placed immediately in
advance of the concrete and shall not be allowed to attain its initial set before pacing the main concrete for the member.
Each layer of concrete, while being placed, shall be consolidated by approved methods of ramming/tamping or
mechanical vibration so as to form a dense homogenous material free from honeycombing, water and air holes or other
blemishes. Concrete shall be placed continuously until completion of the part of the work between the specified
construction joints. Approved working joints shall be made wherever stooping of concrete placing occurs. In general,
concrete shall be placed in a single operation to the full thickness and placed in horizontal layers not exceeding 750 mm
deep in walls, columns and other similar members.
15.6
Vibration
Mechanical vibrators or hand tamping must be used in placing all reinforced concrete work unless the Engineer has
approved specially designed mixes and preliminary work cube test results have been obtained without their use. Rates
for all reinforced concrete work included for this. Where mechanical vibration is required the contractor shall allow for
using two vibrators at any one time.
16.
Working Joints
Working joints shall be of an approved shape and placed at right angles to the axis of the member. All day work joints
and construction joints to follow the line of boards on shutter. In fair faced work walls to be poured where possible in
one lift to a minimum of 3.60m. Walls higher than this to be constructed in two equal pours. Kickers at bottom of walls
to be cast against a straight edge set in shutter and too be 50 mm above structural level of floor. The Contractor shall
submit his proposals for the design and positioning of all joints on drawing to the Engineer for his approval well before
construction is commenced. The position of day-to-day working joints may be determined so as to meet the
requirements of the Contractor’s concreting programme.
Specifications 9
Wherever new concrete is to be placed against concrete that has hardened, the face of the old concrete shall be
cut back not less than 20 mm and all loose particles removed. The face shall then be wire brushed and
thoroughly cleaned with water and then coated with a neat cement grout immediately before placing concrete.
The new concrete shall be well rammed and compacted against the prepared face before the neat cement grout
sets.
17.
Protection of Concrete
Newly placed concrete shall be protected by approved means from rains, sun and dry winds, and exposed faces shall be
kept moist with polythene sheets or hessian coverings or other approved means for at least 7 days. Under no
circumstances shall concrete be worked upon until it has reached cube strength of 140 kg per square centimeter.
Immature concrete shall be protected from damage by falling debris, excessive loading, and vibrations, running or
standing water, abrasive or other influences likely to impair the quality or strength of the finished work.
18.
Concrete in Excavations
The length and widths of the excavation shall be necessary for the proper construction of work below ground and in
accordance with the preambles contained in the section “Excavation and Earthwork”. Blinding concrete has been
measured for the net width required for concrete structures and foundations below ground level. Blinding has not been
measured to the extra width, if any, required for working space. The depths shall be decided by the Engineer where
these are not given on the drawings. Any obstructions or unusual solids encountered during the excavations shall be
reported to the Engineer and dealt with as then instructed.
19.
Removal of Formwork
The period ellapsing between placing of concrete and removing the form work shall be sufficient to allow the concrete
to mature to the extent of being able to maintain its own weight and any constructional and structural loads imposed
without damage. The Engineer’s approval for the removal of the formwork shall be as tabulated below:
POSITIONS OF FORM WORKS
MINIMUM STRIKING TIME
Sides Of Walls And Columns
2 Days
Beam Soffit (Props Left In)
7 Days
Beam Props
14 Days
The formwork shall be removed in all cases by gradual easing without jarring and the process shall be such that the
sharp edges of the concrete are not clipped and spilled away. If the imposition of a load exceeding the design load is
anticipated, props shall be provided in an approved manner after removal of the formwork and before the imposition of
the loads.
20.
Surface Finishes
Upon removal of the form work any honeycombing or damaged surfaces or other imperfections shall be reported to the
Engineer. No surface shall be repaired or otherwise treated until an inspection has been carried out by the Engineer and
his instructions or approval to the remedial work (if any) have been given or obtained.
Concrete surfaces which are to be plastered or rendered are to be hacked or roughened by an approved means to form a
key.
Sawn formwork is assumed for all surfaces requiring support and subsequently concealed or plastered
21.
Precast Concrete
Where precast concrete members are specified, these shall be constructed in moulds of approved design and samples
from the moulds shall be approved before mass production of the member is commenced. Large precast members shall
be lifted only at points which will not damage the members and if necessary temporary bracing of timber shall be used
to case the member until it is in position. Small lintels and other small members may be cast in-situ at no extra cost at
Specifications 10
the Contractors option. Allowance must in all case be made for any extra reinforcement to counteract temporary stresses
whilst handling, transporting and hoisting precast concrete members. Mould for precast units described as finished fair
on exposed surface shall be lined with plywood or hardboard to leave a fair finish on the exposed concrete face when;
the mould is removed.
The concrete shall be of the grade specified on the drawings but maximum aggregate size 12 mm and shall be
thoroughly vibrated in the moulds and shall not be removed until seven days after placing the concrete.
Care must be taken that no concrete is allowed to become prematurely dry and the fresh concrete must carefully be
protected from the rain, sun and wind by means of “sisalkraft” paper, well-wetted sacking, wet sand or other approved
means. This protective layer and the concrete itself must be kept continuously wet for at least seven days after the
concrete has been placed.
Prices for precast concrete shall include for all moulds, reinforcement as specified, hoisting and fixing in the position
required, bedding and pointing as described and temporary props and other necessary support.
22.
Sub-Contractors Work incorporated in the structure
It shall be the Contractor’s responsibility to co-ordinate Sub-Contractors and others for incorporating any electrical
conduct, plumbing fixtures and pipes, bolt holes, etc. in the concrete members as required and shown on the drawings.
The contractors shall submit details of cable and pipe runs to the Structural Engineer before the work is put in hand and
shall have the Engineer’s approval for the layout. No holes or chases shall be cut on concrete without the approval of
the Engineer.
22.1
General
No holes or chase are to be cut in any part of the reinforced concrete construction without first consulting the Structural
Engineer. No part of the reinforcement shall be used for conducting electrical current. Notice must be taken of anything
appearing on the drawing and not mentioned in these preambles.
23.
Expansion and Separation joints
Expansion joints shall comprise:
 Bitumen impregnated soft board or similar approved.
 Joint topping is to be “Plastic joint” or similar approved bituminous putty applied with a gun. Joints are to be at
least 12 mm deep and the gap is to be formed by ranking out (in the case of expanded polystyrene) or by
temporary wooden battens of the required width and 12 mm.
24.
Mortises and Pockets
Mortises or pockets for holding down bolts or dowels shall be formed in concrete to the size and shapes shown on the
drawings. Mortises shall be formed by the use of expanded polystyrene blocks of the required shapes and sizes
carefully and accurately placed and maintained in position whilst the concrete is poured. Rates for mortises shall
include for all necessary templates and ranking out and the complete removal of the polystyrene when the concrete has
set.
25.
Ready Mixed Concrete
Ready mixed concrete may only be used with the permission of the Engineer. The use of ready-mixed
concrete shall not relieve the Contractor of any of his obligations and the appropriate clauses of these
specifications shall apply to the Ready-Mixed concrete supplier. Concrete test tubes shall be taken on the site
at the point and time of discharge in accordance with this specification irrespective of any cubes that the
supplier may take at his own works.
26.
Strength and Soundness
The strength and soundness of the concrete will be generally determined by cube tests, Schmidt hammer tests or by any
other method which the Engineer considers to be appropriate and suitable. The opinion of the Engineer regarding the
soundless and acceptability of the finished concrete shall be final.
Specifications 11
SECTION 3 – BLOCKWORK
1. Water
Water shall be as previously specified in “Concrete Work”
2. Cement
Cement shall be as previously specified in “Concrete Work”
3. Fine Aggregate
Fine aggregate shall be as previously specified in “Concrete Work”
4. Course Aggregate
Course aggregate shall be as previously specified in “Concrete Work” and shall comprise aggregate of 6, 10 and 20 mm
grading in equal proportions.
5. Lime
Hydrated limes for cement/lime mortars shall comply with BS 890 semi-hydraulic Class “B” calcium lime.
6. Concrete Blocks
Solid and hollow concrete blocks for walls shall comply with BS. 2028 type “A” except that the recommended mix shall
be 1:3:6 cement, fine and coarse aggregate respectively by volume and are to have sharp arises. Blocks are to be
manufactured on site in approved block-making machines and shall be solid or two cavities hollow types as specified on
the drawings. No damaged blocks shall be used in walling and half or other part blocks required to maintain bond shall
be cut true and even.
The concrete is to be placed into the moulds in thin layers and shall be properly tamped or vibrated to secure complete
consolidation without voids or flaws and to produce smooth surfaces and sharp straight corners.
Blocks shall be cast on loose pallets and after removal from the moulds shall be carefully stored under cover for at least
24 hours before the pallets are removed. The blocks shall thereafter be stored under cover for a further seven days
protected from the sun and drying of the blocks may commence on the ninth day after manufacture and no blocks may
be used within 14 days of their production.
The comprehensive strength of the type “A” concrete blocks shall not be less than:
Average of 13 blocks
50 kg per square centimeter
(700 lbs per square inch)
Lowest individual block
40kg per square centimeter
(580 lbs per square inch)
7. Concrete Louvers
Concrete louver blocks shall be of approved type and manufacture. The blocks shall be with inclined faces and of
overall size 460x150x160 (excluding lip protruding outside the bending face).
8. Hollow Walls
Hollow walls shall be built with cavities of the width shown on the drawings, the two thickness of blockwork shall be
bonded together with wall ties, as described span 900 mm apart horizontally, 300 mm vertically and staggered and with
extra ties at reveals and openings; the ties are to be carefully laid so that they do not fall towards the inner thickness of
the walls. The cavity is to be kept clear by lifting screeds or other suitable means. Openings shall be left at the base to
enable the cavity to be cleaned out at completion and the openings shall subsequently be blocked up uniformly with the
surrounding work.
When polystyrene insulation is to be fixed in the cavities it shall be inserted as the blockwork proceeds and cut and fixed
to wall ties.
Specifications 12
The polystyrene shall be completely immersed in bituminous paint before fixing. Before the polystyrene is fixed in the
cavity the inner face of the outer blockwork leaf shall have two coats of bituminous paint applied as the work progress.
9. Natural Stone Walls
All stone shall comply with the requirements of CP121.202 for masonry and natural stone walls except where amended
or extended by the following clauses:
Unless otherwise noted, all masonry walls shall be course squared natural stone walling with mortar joints. The size of
stones for natural stone walling shall be such that the length of stone does not exceed three times its height. For coursed
squared natural stone walls block shall not exceed 300mm in height and shall be not less that 150mm in height.
Where snecked natural stone walls are specified; the snecks shall not be less than 100mm square on the exposed face.
Stone for masonry shall have a minimum compressive strength of 10 N/mm2. (Stone shall not be required to be tested to
failure). The density of stone for masonry shall be not less than 230kg/m3. The drying shrinkage of stone shall not
exceed 0.05%.
Samples of stone provided for testing shall be tested for the following in accordance with the methods given in BS 2028,
1364 and the test results shall comply with the requirements of this specification.
(a) Compressive strength
(b) Density
(c) Drying shrinkage
The colour and texture of stone shall be uniform and consistent. Prior to delivering any stone to site the Contractor shall
supply the Architect with a sample of stone in order that he may approve the colour and texture. The Contractor shall
ensure that sufficient suitable stone is available for the whole of the project prior to ordering the stone.
Where cast stone including described as artificial stone, reconstructed stone, etc, is specified the stone shall comply with
the requirements of BS1217. Masonry shall be of stone, having no irregular faces and only the back face if not visible
shall be left as from the saw.
Prior to ordering dry stone the Contractor shall demonstrate that the stone is durable. This may be done by supplying
details of building constructed with stone from the quarry and which has been exposed to the same environment
condition for at least ten years. The maximum projection from the face of stone for natural stone walls shall be 20mm
beyond the specified face of the wall.
The Contractor shall provide six samples of stone measuring 200mm x 200mm for testing prior to delivering any stone to
site. As work proceeds the contractor shall provide six samples 200 x 200 x 400mm for testing from every 300m2 of
work. All stone shall be stacked on prepared dry areas free of clinker, ashes and sulphate bearing strata.
10. Fair Face Work
Walls described as finished with fair face shall be constructed with blocks or stones selected for their uniformity of size
and with a smooth exposed face with no chips, blemishes, pinholes or cracks. Walling shall be pointed with a neat flush
joint as work proceeds and on completion shall be brushed down and left thoroughly clean.
11. Mortar
The mortar used for walling shall be composed of one part of cement to four parts of sand (1:4) measured in gauge
boxes and thoroughly mixed and preferably with an approved mechanical mixer or on clean and approved mixing
platform with water added afterwards until all parts are completely incorporated and brought to a proper consistency and
used within the hour. No partially or wholly set mortar will be allowed to be reused or remixed.
The constituent materials shall be measured separately when dry in specially prepared gauge boxes of sizes to give the
proportions specified without consolidation of the contents by ramming and shaking. The mortar shall be mixed in an
approved power driven mixer for not less than two minutes per batch and using the minimum quantity of water
necessary to obtain a working consistency. The mixer shall be used as close as practicable to the works and mortar shall
be used within 30 minutes of mixing. No partially or wholly set mortar will be allowed to be used or re-mixed.
Specifications 13
12. Workmanship
All blocks and stone to be wetted before laying out and the top of walling where left of previously shall be well wetted
before recommencing building. Walls shall be kept wet three days after building.
All walling to be built true, plumb and level with all perpends vertical and in line and work shall not rise more than 900
mm above the adjoining work and all such rising are to be properly raked back.
13. General Construction
(a) Setting out
The Contractor shall provide proper setting out rods and set out all work on same for course, openings, heights etc,
and shall build the walls, piers etc, to the widths, depths and heights indicated on the Drawings and as directed by
the Architect.
(b) Building in wood frames
Openings for doors, ventilators etc, are to be set out and left unbuilt until the wooden frames have been fixed in
position.
(c) Building in metal windows and doors
Openings for metal frames to be wide enough for the frames to fit without being forced into position. Build the lugs
into the joints of the walling and fill into the space between the walling and frames with cement mortar will tamped
into the channels of the frames and point all round externally.
All frames must be set plumb and level and free from twist.
(d) Walls to receive plaster & similar finishes
All faces of walls to be plastered etc, to have all projections dressed off and joints raked out as key.
14. Damp Proof Course
Damp proof course between foundation walls and the over-site concrete slab shall be hessian based bitumen strip to BS.
743 Type 5A the same width as the block walls. The damp proof course shall be bedded in cement mortar (1:4) with
150mm end laps and full width as passing and angles.
Damp proof courses are required on all external and internal foundation walls.
15. Wall Reinforcement
Where described walls and partitions shall be reinforced with a 25mm wide strip of No. 20S.W.G hoop iron built into
alternate horizontal joints in the wall centre. The reinforcement shall be lapped and hooked at running joints, angles and
intersections and carried at least 115mm into abutting walls at junctions.
16. Wall Ties
To be 3mm diameter galvanized mild steel wire twisted butterfly wall ties.
17. Building Walling
(a) Laying and jointing
All blocks shall be well wetted before being laid and the top of walling where left off shall be well wetted before
commencing. Walls to be kept wet three days after building. All walls throughout the works shall be carried up
evenly in 200mm courses except where courses of less depth are required to bring walling up to level of floors,
windows and the like and where otherwise described, no part being allowed to be carried up more than one metre
higher at one time than any other part and in such cases the joining shall be made long in steps so as to prevent
cracks arising and all walls shall be leveled round at each stage. Not more than 3metres height of wall shall be laid
in any one day.
Specifications 14
(b) Bonding
The blocks shall be properly bonded together and in such a manner that no vertical joint in any one course shall be
within 115mm of a similar in the courses immediately above or below. All walling of 300mm thickness or less shall
be built in single thickness of blocks. Walling exceeding 300mm in thickness shall be built with through bonders
not more than 1070mm apart in each course as directed by the Architect.
Alternate courses of walling at all angles and intersections shall be carried through the full thickness of the adjoining
wall. All perpends, reveals and other angles of the walling shall be built strictly true and square.
(c) Tolerances
All courses of walls shall be level with a maximum deviation of +/- 3mm in any one metre length and a maximum
deviation of +/- 3mm in any metre height of wall with a maximum deviation of +/- mm in the height of the wall or
any storey.
All corners of walls which shall be an average of 10mm thick with a maximum deviation of +/-3mm in any one
metre length and a maximum overall deviation of 10mm in any length exceeding 3 metres.
All bed and vertical joints shall be an average of 10mm thick with a maximum deviation of 3+/- of block work, and
stone natural stone walls. Joints for stone masonry walls shall be 6mm +/- mm thick.
(d) Curing
All walls shall be maintained in damp conditions for at least 24 hours after laying. Walls under construction shall be
dampened by applying water with a brush and no hosing directly on to the wall shall be permitted. When work
ceases on any section of wall polythene or Hessian shall be draped over the wall, for at least 24 hours. If Hessian is
used, it shall be maintained continuously wet.
(e) Cavities
Cavity walls shall be of the overall thickness shown on the drawings.
Cavities above ground level between leaves of block or masonry shall be free of mortar droppings or their debris.
The Contractor shall take proper precautions to prevent mortar or debris entering the cavity.
Cavity below ground level shall be filled with mortar for cavities up to 75mm wide and for cavities over 75mm wide
filling shall be concrete mix 1:3:6. Cavities shall be filled such that there is maximum of three times the thickness
of the thinner leaf of the wall filled wit wet mortar or concrete unless the wall is continuously supported for the
depth.
(f) Backfilling
Earth backfilling shall not be carried out such that the level of the backfill is always equal on each side of the wall.
When a wall has filling material on one side only to a fill width of more than three times the wall thickness, the wall
shall be continuously supported during backfilling.
Backfilling shall not be carried out until at least seven days have elapsed since the laying of the blocks or stone.
18. Reinforcement in Walls.
Steel reinforcing bars in walls shall be carefully placed and spacers used to ensure that a minimum or 20mm cover is
given to the reinforcement unless otherwise specified. Horizontal reinforcement in mortar joints shall be laid such that
the reinforcement is not in contact with the blocks or stone.
19. Wall Ties
Wall ties shall be provided to connect walls to steel or concrete columns and beams to connect two unbounded leaves of
wall.
20. Pointing
Pointing of walls shall be carried out as the work proceeds wherever possible. When coloured mortar is specified for
pointing shall be carried out after work has been completed.
Specifications 15
Existing walls shall be prepared for pointing by raking out all loose friable material to a minimum depth of 15mm to
form a square recess. The joints shall then be wetted and new mortar shall be forced into joints and finished as directed.
21. Holes, Cutting and Chasing
(a) All putlog holes shall be not less than one course deep and carefully filled with a block cut to fit size of opening
with beds and joints filled with mortar well tamped in after scaffolding is removed, and if in faced walls to match
facing.
(b) Where walling is cut, holed or chased for conduits, pipes and the like all such cuttings etc., shall be filled in solid
with cement mortar (1:4) prior to the application of finishes.
Specifications 16
SECTION 4 – ROOFING
1. Cement and Sand
The cement and sand roof finish is to be mixed in the proportions as described and shall incorporate an approved
waterproof additive and an approved hardener.
2. Bituminous “Built-up” Roofing
Bitumen based roof covering shall be composed of three layers of single ply roofing felt of specified quality weight and
make.
Each layer laid shall be lapped not less than 76 mm at all edges and layers shall be bonded together and to the sub
surface with approved bituminous compound or hot bitumen.
At abutments the felt shall be carried over 76 mm prepared angle fillets up walls or beams etc, or a specified distance
and tucked into grooves chases or under parapets as required.
3. Tropicalised mastic Asphalt Roofing
Asphalt roofing will be executed by an approved specialist roofing sub-contractor. Before any application of roofing the
contractor is to ensure that all roof surfaces are thoroughly cleaned by sweeping.
Roofing asphalt to be BS 988/1966 Table 3 COLUMN 111 Tropical Mastic asphalt laid in two coats to a total thickness
of 20mm on and including black sheathing felt, and finished with either three coats aluminum paint to horizontal and
vertical surfaces local grey stone chippings or precast concrete paving slabs as necessary.
The first layer of asphalt to be fully bonded in the sheathing felt and the second layer to be laid with a 75mm joint to the
first layer. At all junctions of covering with parapet walls, kerbs, eaves, gutters etc., the asphalt is to be turned up a
minimum height of 150mm with an angle fillet at the junction with the roof covering and splayed at the tip and tucked
25mm into groove and pointed in cement and sand.
Precast concrete tiles are to be 250 x 250 x 20mm thick, interlocking, finished fair on exposed face and bedded in
bitumen and pointed in cement mortar.
4. Fulbora roof Outlets
The fulbora outlets shall be as manufactured by Fulbora ltd, hatfield, herts, England and Fixed in accordance with the
manufacturer’s instructions.
5. Tiling
Materials
Metal roofing tiles shall be as supplied by Space and Style Limited, Nairobi or equivalent, and shall be laid and fixed
strictly in accordance with the manufacturer’s fixing instructions.
Workmanship
The whole of the roof indicated on the drawings to be covered with the tiles specified. All laps, ridges, verges,
abutments, valleys, hips and other edges to be done in accordance with the manufacturer’s instructions.
6. Colas Roof Waterproofing
Colas roof and planting box waterproofing shall be obtained from an approved manufacturer or supplier and laid in
accordance with the manufacturers instructions to the approval of the Architect. Surfaces shall be prepared in the
following manner:(a) Lay 60mm faced triangular fillets at all internal wall to roof intersections using a mortar comprised of 1 volume of
colmastic 30.01 and 2 volumes of sand.
(b) Parapet walls and other vertical surfaces must be smooth. Brickwork shall be flush pointed or rendered with a
cement/sand mix, to a height of 250mm.
Specifications 17
(c) Rain water outlets shall be fixed firmly to but below the level of the roof slab. They should be free to move
independently of the down pipe.
(d) When the concrete and/or mortar applications are set and dry, brush the surface free of all dirt, dust, laitance and
loose materials. Apply, by brush or spray, a coating of colas prime 80.05 and allow this to dry.
(e) Day work joints, shrinkage cracks or fillets shall be treated by applying a heavy coat of colaskote 70.02 into which
should be embedded a strip of colas membrane 88.08, free of wrinkles. This strip shall extend, in width, 80mm on
both sides of the joint/fillet being treated. A further coat of 70.02 shall be applied over the 88.08 and allowed to dry.
Colas waterproofing shall be applied as follows:
(a) Apply heavy brush of colaskote 70.02 0.75 litres per sq.metre laid on in one direction. Allow to dry.
(b) Apply a further heavy brush coat of colaskote 70.02 laid on right angles to the previous coat, and whilst this is still
wet, ambed a layer of colas membrane 88.08. (Note: Edges of the membrane should be overlapped by 80mm.
Allow to dry.
(c) Apply a heavy brush coat of colaskate 70.01 laid on at right angles to the previous coat. Allow to dry.
Colas roof waterproofing shall be finished with two coats colaskate 71.04 aluminum reflective paint. The first coat shall be
allowed to dry before application of the second coat. Before application of the first coat of reflective paint the colaskote
waterproofing shall be dusted with clean, sharp, fine sand whilst still wet and excess sand thoroughly brushed off when the
emulsion is dry.
7. Roof Screed Generally
Roof screeds are to be laid to a minimum fall and cross fall of 27mm in 3.0 metres with a minimum thickness of 19mm
at rainwater outlets and are to be finished to the entire satisfaction of the subcontractor executing the roofing.
8. Lightweight Roof Screeds
Lightweight roof screeds shall be composed of bases of cement, sand and pumice (1:4:8) finished with a 12mm cement
and sand (1:5) topping laid whilst the base is still green and trowelled smooth to the satisfaction of the Architect.
The screeds are to be laid as described in ‘cement and sand Roof Screeds’
9. PVC Rainwater Pipes
PVC rainwater pipes and fittings are to comply with BS 4576 with solvent welded or rubber ring seal joints.
Pipes are to be cased into concrete or to be fixed to the structure with PVC holder bats built-in plugged and screwed at
maximum 2 metre centres
Bends, swan necks, discharge chutes and fittings generally are to be fixed where necessary to facilitate the flow of water.
Rainwater outlets shall be PVC suitable for the roof finish in which they occur with domical PVC grating.
10. Protection
The Contractor is to make all necessary precautions to protect the finished work and must ensure no damage occurs to
the roofing until completion of the works.
Specifications 18
Section 5 – CARPENTRY
1. Timber Generally
The timber used for carpentry shall be sound, well conditioned, properly seasoned to suit the particular use and free from
defects or combination of defects rendering it unsuitable for the purpose intended.
All other used structurally shall comply with the relevant requirements of and graded in accordance with the export of
timber ordinance (Cap. 288) - The export and Grading of Timber rules 1969.
All timber is to be ordered as soon Contract is signed and is to be delivered to the site for open stacking for as long as
possible before use. All timber will be inspected by the Engineer upon arrival at the site and if not approved by him
shall be removed from the site forthwith. Not withstanding the Engineer’s approval, any timber incorporated in the
works found too be in any way defective before the expiry date of the defects liability period shall be removed and
replaced at the sole expense of the Contractor.
Timber shall be free from live borer beetle or other insect attack when brought to the site. The Contractor shall be
responsible to the end of Defects liabilities period for executing any work necessary to eradicate insect attack at or
suspected of being attacked notwithstanding that the timber may have been inspected already and passed fit for use.
2. Moisture Content
All timber shall be seasoned to moisture content, if not otherwise specified of not more than 15%. The contractor must
allow for the cost of any kiln drying which may be necessary to obtain this figure.
3. Samples and Testing
The Engineer shall be entitled to select any sample he may reasonable require of materials or prototype of especial
construction elements for the purpose f testing (e.g. for moisture content, identification of species, strength etc.).
4. Protection
All timber delivered to the site shall be stored under cover clear of the ground and protected from sun and dampness and
shall be stored in a satisfactory manner to prevent attack of termites, insects and fungi.
5. Soft wood
Timber for structural use, including rafters, purling, etc shall be of grade 11 strength and grade 1 appearance. The
softwood shall be seasoned cypress, cedar pine or podocarpus which shall be pressure impregnated with the full cell
process as described below, but the Contractors attention is drawn to the Day works Schedule where the basic price of
various timber requires pricing, in the event of one of these timbers being selected as an; alternative then these basic
rates will be used in calculating new rates for the item of carpentry concerned.
6. Pressure Impregnantation
The softwood described, as pressure impregnated shall be treated with the “Celcure A” or “Tenolith C” full cell process.
Timber ust be seasoned to a moisture content not exceeding 25% before being treated. The treatment shall be to the
minimum standard of:
Solution concentration
-
2%
Absorption of preservative
-
520 liters per cu. m
Net dry salt retention
-
10.4 kg per Cu. m
After treatment the timber shall be seasoned to the specified moisture content.
Cut ends and faces of timber sawn, drilled and cut after treatment are to be swabbed liberally with approved preservative
until saturated, allowed to dry and then treated with a second coat and rates for timer shall be included for this.
Approved preservatives are:
Atlas A Brunophen No.2
Specifications 19
Cupricol Clear or Water Repellent Clear.
Ensele Woodtreat 55
7. Hard wood
Hardwood for structural and roof timber shall be third grade scantlings, strength group 1 or other suitable and approved
durable hardwood
8.
Preservative Treatment
On delivery to the site all structural hardwood is to be treated with two coats of an approved timber preservative.
After mixing, the hardwood is to be touched up as required with approved timber preservatives.
The timber preservative shall be coal-tar creosote to BS.144 or other equal and approved applied either by brush or by
spraying in accordance with the manufacturer’s directions.
Cut ends and faces of timber sawn drilled and cut after treatment are to be swabbed liberally with approved
preservative until saturated, allowed to dry and then treated with a second coat and rates for timber must include for this.
9. Nails
Nails shall be galvanized and comply with B.S 1202 and screws with BS 1201. Screws shall be brass unless otherwise
described. Bolts, nuts and washers shall comply with BS 916 and gar bolts, coach screws and other accessories shall
comply with BS 1494. Washers shall be square minimum 3mm thick and 3mm sides.
10
Workmanship
“Unwrought” or sawn timber shall be as left from the saw and shall be to the full dimensions stated.
All carpentry shall be executed with workmanship of the best quality. Scantlings and boarding shall be accurately sawn
and shall be uniform width and thickness throughout. All carpentry work shall be left with sawn faces except where
particularly specified to the wrot.
All carpentry shall be accurately set out in strict accordance with the drawings.
All structural timbers shall be framed or jointed together as is most appropriate in the circumstances in accordance with
the rules of good practice. Joints must be executed in strict conformity with the drawings.
All joints shall be secured with a sufficient number of nails disposed as shown of the drawings and rates must include
for the joining of timbers. Surfaces must be in a good contact over the whole area of the joint before securing. Holes for
nails must be pre-drilled undersize; holes for bolts must be bored slightly oversize form both sides of the timber and
washers must be used under the nut which should be tightened sufficiently to permanently secure the joint but not to
crush the timber.
2.18
Specifications 20
Section 6 – JOINERY
1. Generally
The provisions contained in the Carpentry Section shall apply also in the Joinery Section where applicable.
2.
Hardware
Joinery is to be executed in approved time, select and locally available hardwood. Hardwood generally will be
camphor (pterocarpus angolansis) but hardwood for fittings and built-in furniture may be:
Mahogany - unless specifically described.
3
Workmanship
All timber shall be wrot by machine dressing on exposed faces, with all machine marks sanded out, unless otherwise
specified.
The joinery shall be worked strictly in accordance with the detailed drawings and is to be framed up and put together as
soon as possible and is to be stored for as long as possible before wedged up. All joints and angles are to be glued and
where necessary cross-tongued with hardwood tongues, and the surface finished clean and smooth with machine marks
sand papered out before fixing.
Should any of the joinery work shrink, wind or fly unduly before the end of the maintenance period of the contract, the
work is to be taken down, and new work fixed in its place, together with any other work, which may thereby be
affected at the Contractor’s expense.
Where joinery is described as screwed, this is deemed to include sinking the head of the screw and pelting with similar
timber and to grain in with finished joinery. Screws unless specified, shall be brass.
In pricing the items, the Contractor will allow for nails and screws and fixing, all labors, cutting, notching, halving,
mortising, tenoning and welding except where otherwise provided.
Allow in the rates for easing and adjusting all doors, and leave in perfect working order.
The dimensions and thickness given in these tender documents are finished (unless otherwise stated). In the event of
nominal sizes being stated then an allowance of 3mm should be allowed for each wrot face.
4. Flush Doors
Flush doors shall consist of hardwood core or framing covered with 6mm plywood both sides and complying where
applicable with the requirements of BS. 459, part 2 and 2A. Doors described, as Skeleton framed shall consist of
framing 125mm wide to all stiles, top and bottom rails, with suitable blocks to receive mortise locks on each long edge.
Doors described, as solid core shall comprise a solid core of vertical laminations. All flush doors shall be edged all
round with 25mm thick hardwood lipping tongued and glued in. Doors described as external shall be covered both sides
with 6mm “exterior” quality plywood as described below. All flush doors shall be perfectly plain on both faces and free
form waves, ripples or distortions of any kind. Any doors which, after the application of paint or polish shows any
defect of this nature, shall be removed and replaced at the Contractor’s expense. Samples of flush doors, which the
Contractor intends to use, must be first submitted to the Architect for his approval.
5. Plywood
Plywood shall be of approved manufacture, manufactured for tropical hardwoods of the first grade with BS. 1455, and
unless otherwise stated, shall be interior quality. Where stated to be “exterior” quality, plywood shall be W.B.P. bonded
weatherproof grade. Where veneered plywood is specified, samples must be submitted to the Architect for his prior
approval.
6. Block board
Block board shall be of approved manufacture and comply with BS. 3444 and shall be of moisture resistant quality
7. Chipboard
Chipboard shall comply with BS 2604 resin-bonded wood chipboard
Specifications 21
8. Plugging
All work described as plugged shall be fixed with brass screws to plugs formed by drilling concrete, walls etc, with a
screw of suitable “Phil plug”, “Raw plastic” or other approved plugging compound in accordance with the
manufacturer’s instructions.
9. Protection
Any fixed joinery which, in the opinion of the Architect is liable to become damaged in any way shall be cased and
protected by the Contractor until the completion of the works and the Contractor must allow for this in his rates as no
separate item for protection has been allowed.
10. Ironmongery
All Ironmongery will be fixed with matching screws to be supplied by the Contractor and the Contractor must allow for
adjusting locks and striking plates and handling over all keys on completion of the contract with identifying tags
attached.
The contractor must also allow for oiling locks and hinges and leaving them in perfect working order. All ironmongery
shall be as those manufactured by Josiah Parkes and Sons ltd or other Equal and approved by the Architect.
The following standard abbreviations have been used too describe the finish to ironmongery: S.C.P
-
Satin Chromo Plate
C.P
-
Chromo Plate (Polished)
S.A.A
-
Silver Anodized Aluminum
Windows shall Brass plated handles and window stays and or as described elsewhere in these documents.
2.20
Specifications 22
SECTION 7 – METAL WORKS
1.
Mild Steel
Mild steel shall comply with BS. 15, Grade 1, and the size of all small sections shall be in accordance with BS 4 and 4A.
2.
Structural Steelworks
Steel angles and plates are to be weldable mild steel Grade 43A in accordance with BS. 4360
Electrodes for welding are to be in accordance with BS. 639.
All welds are to be fillet welds of 5mm by size unless otherwise indicated.
Bolts are to be black bolts in accordance with BS. 4190, and all nuts, bolts and washers are to be hot dip galvanized.
Bolts holes are to have a diameter of not more than 2mm greater than the; diameter of the bolt.
All steelworks is to be thoroughly cleaned, wire brushed and painted with two-coats of zinc chromate primer and one
finishing coat of gloss paint at the workshop. After erection any damage to the paint is too be made good and a further
finishing coat applied.
3.
Galvanized Work
Iron and steel, where galvanized shall comply with BS. 729, part 1, entirely coated with zinc after fabrication by complete
immersion in a zinc bath in one operation and all excess carefully removed. The finished surface shall be clean and
uniform.
4.
Aluminum
Aluminum shall be of the alloys described in and shall comply with BS. 1470, aluminum sheet for flashing shall be softtemper, super purity (SI or SIA) and not less than 18 S.W.G (1.2 mm) in thickness.
5.
Smithing, Welding and Cutting
All smithing, welding, cutting and bending shall be soundly and neatly executed, care being taken not to overheat.
All flame cut edges and welds shall be neatly ground off on completion. All welds shall be 8mm fillet welds to comply
with BS Code of Practice 1856 unless shown otherwise.
6.
Bolts
Mild steel bolts, nut and washers shall comply with BS. 916 for black bolts with hexagonal heads and nuts, high Tensile
steel bolts and nuts are in accordance with BS. 3139, part 1.
7.
Mild Steel Tubing
Mild steel tubing shall be in accordance with BS 1387, 1957 with screwed sockets and joints.
8.
Anchor- Bolts
Anchor-bolts in concrete for steelworks, etc, are to be self-drilling anchor bolts of one of the following types: Philips redhead concrete
Rawplug super drill anchor
Spit self drilling anchors
9.
Shop Inspection
The Architect shall be granted full facilities and any necessary assistance for inspection of materials and assembled parts
in the Contractor’s (or his Sub-Contractor’s) workshops. At least two weeks notice shall be given to the Architect in
writing prior to the dispatch of finished components to the site to enable the Architect to inspect and approve the materials
and workmanship at the workshops. Approval of works at the workshops does not relieve the Contractor of his
obligations to carry out the works complete at the site to the Architect’s satisfaction in accordance with the contract.
2.21
Specifications 23
10. Marketing
All components delivered to the site are to be marked in paint with the mark number in accordance with any shop and
erection drawings
11. Storage
All components are to be stored at the site in proper racks provided for the purpose, which provide full support to each
member, and to obviate any deflection and distortion. Steelworks is to be stored at least 25 cm clear of the ground and the
temporary protection is to be provided for protection against water and damage from any other source.
12. Erection
Rates for metalwork are to include for the complete erection including any temporary supports required and any
necessary templates and wedges.
13. Painting
All steel is to be thoroughly de-rusted and de-greased prior to dispatch to the site and is to be given two coats of red lead
primer at the works. Further painting treatment will be carried out at the site. The finishing coat of paint and the cost
thereof is to be included in the rates for metalwork.
2.22
Specifications 24
SECTION 8 – PLUMBING AND ENGINEERING INSTALLATION
1. Execution Of The Work
The work shall be carried out strictly in accordance with: a. “British Standard Code of practice” C.P. 310:1965: Water supply
b. “British Standard Code of Practice C.P. 304:1968: Sanitary Pipe work above ground
c. All other relevant British Standard Specifications and Codes of Practice
d. The working drawings.
The plumbing work shall be carried out by a specific and, if the Contractor is not a firm approved by the Engineer for the
type and/or value of plumbing Installations contained in this contract, he must sublet this work to a specialist sub-contractor
who is approved.
2. Extent of Work
The work includes, unless otherwise specified, supply installation, testing and commissioning and delivering up clean and in
working order the installation shown on the drawings and specified in these preambles including all details such as: Cold water pipes, discharge (the term discharge pope is in these specification used as a comprehensive all embracing
description in place of the traditional soil and waste terms), drain and ventilating pipes, water maters, valves, sanitary
appliances including all necessary taps and discharge fittings, fire fighting installations and equipment, and all labor,
materials, tools, instruments and scaffolding necessary to execute the work in a first class manner, even such labor or materials
which are not specifically mentioned in the project but are necessary for a satisfactory completion of the work.
The contractor shall be responsible for ensuring that runs for floors or walls chases, holes to cut or left will be marked out at
the appropriate stage of the structural work.
The contractor shall undertake all modifications demanded by the Authorities in order to comply with current regulations, and
produce all certificates, if any, from the Authorities without extra charge.
3. Extent of Contractor’s Duties
At commencement of the work, the contractor shall investigate and report to the Engineer if all materials and equipment to be
used in the work, and not specified by others are available locally. If not available, the Contractor shall at this stage place
orders for the materials in question and copy the orders to the Engineer. Failure to do so shall in no way relieve the Contractor
from supplying the specified materials and equipment in time
Materials supplied by others for installation and/or connection by the Contractor shall be carefully examined before
installation and connection. All defects noted shall immediately be reported to the Engineer.
The contractor shall be responsible for verifying all dimensions relative to his work by actual measurements taken on the site.
After the completion of the work the contractor shall, on a set of drawing, indicated all alterations and/or modifications
carried out during the construction period.
4. Quality of Materials and Workmanship
4.1 Material and workmanship Generally
All materials, equipment and accessories are to be new and regulations where such exist, or in their absence with the relevant
BS.
2.23
Specifications 25
Uniformity of type of manufacture of equipment or accessories is to be preserved as far as practicable throughout the
whole work.
The contractor shall, if required by the Services Engineer, submit samples of materials to the Engineer for his approval
before placing an order.
If in these preambles the practice is adopted of specifying a particular item as “similar” to that of a particular firm’s
product, it is to be clearly understood that this is to indicate the type and quality of the equipment required. No attempt is
being made to give preferences to the equipment supplied by the firm whose name or products is quoted.
When particular manufacturers are specified herein, no alternative makes will be considered, and the Engineer shall be
allowed to reject any other makes.
The Contractor will be entirely responsible for all materials, apparatus, equipment, etc, furnished by him in connection
with his work, and shall take all special care to protect all parts of finished work from damage until handed over.
The work shall be carried out by competent workmen under skilled supervision. The Services Engineer shall have
authority to have any of the work taken down or changed, which is executed in an unsatisfactory manner.
4.2 Tubing Generally
All tubing exposed on faces of walls, unless otherwise specified, be fixed at least 25 mm clear of adjacent surfaces with
approved holder bats built into walls, cut and pinned to walls in cement mortar, where fixed to woodwork suitable clips shall
be used.
All tubing specified as fixed to ceilings, roof or roof structures, shall be fixed with approved mild steel hangers cut and
pinned to ceilings, roof or roof structures. Where three or more tubes are fixed to ceilings, roofs or roof structure close to
each other, they shall be fixed in position, which leaves the lower surfaces at the same horizontal level, unless otherwise
specified.
Tubes shall be fixed to true lines, parallel to adjacent lines of the building unless otherwise specified.
Where insulated, tubing shall be fixed with the insulation at least 25 mm clear of adjacent surfaces.
Tube fixings and supports shall if nothing else is specified be arranged at intervals not greater than those given in the
following tables.
Mild Steel Tubing
Diameter of pipe in mm maximum spacing of fixing mm
12
19
25
32
38
50
63
76
100
Horizontal runs
1 800
1 400
2 400
2 700
3 000
3 000
3 600
3 600
3 600
Vertical runs
2 400
3 000
3 000
3 000
3 600
3 600
4 600
4 600
4 600
2.24
Specifications 26
Cast iron Pipes
Diameter of pipe in mm maximum spacing of fixing in mm
All sizes
Horizontal runs
1 800
Vertical runs
3 000
Each support shall take its due proportions of the weight of the tube or pipe and shall allow free movement for
expansion and contraction.
All tubing specified as chased into walls shall have the wall face neatly cut and chased, the tubing wedged and fixed and
plastered over.
Where tubing is laid in trench care shall be taken to ensure that fittings are not strained.
All framed bends shall be made so as too retain the full diameter of the pipe.
Sleeves shall be provided where tubes pass through walls and solid floors to allow movement of the tubes without
damage to the structure. The overall length of the sleeves shall be such that it projects at least 2 mm beyond the finished
thickness of the wall or partition.
Tubing shall be cut by hacksaws or other method, which does not reduce the diameter of the tube or form a bead or
feather, which might restrict the flow.
4.3
Galvanized Mild Steel Rainwater Pipes
Galvanized mild steel rainwater popes shall be in accordance with BS. 3868 with spigot and socket joints.
Joints shall be in accordance with BS 3868 with spigot and socket joints.
Joints shall be made with best quality tarred yarn, firmly caked to not more than one-third the depth of the socket and the
joint finished with molten lead properly caulked.
4.4. Galvanized Mild Steel Tubing
Galvanized mild steel tubing shall be in accordance with BS 1387:1957 with screwed and socketed joints
Fitting for the same shall be galvanized malleable iron to BS.1356: 1952 with threads to BS 21:1957.
Joints shall be made with find hemp and approved jointing compound or tape. Compound containing red lead must not
be used.
Long screws connectors and flat-faced unions shall not be used. Unless otherwise specified.
Where laid underground, galvanized mild steel tubing shall be protected with two coats “Flintkote” or two coats of
approved bitumen. Minimum earth cover to underground tubing shall be 600mm.
The fixing of galvanized mild steel tubing shall be done by using:




Malleable iron “school board” pattern brackets for building in or for screwing too structure, or
Malleable iron pipe rings; with either back plate, plug or girder clips, or
Purpose made straps to the Engineer’s approval, or
Other approved purpose made holder bats.
2.25
Specifications 27
4.5
Cast from Pipes
Cast iron pipes and fittings for discharge and ventilating pipes shall be snad cast and spun iron spigot and socket pipes to
BS. 416:1957, medium grade, and thoroughly coated inside and outside. Pipes and fittings shall be obtained from a
licensed manufacturer and be embossed with the certification mark of approved standard institution.
Joints shall be made with best quality tarred yarn, firmly caulked to no more than one-third and depth of socket and the
joint finished with molten lead properly caulked.
Joints of cast iron discharge or ventilating pipes to stoneware drain pipes shall be made with tarred yarn and cement and
sand mortar 1.3, joints to cast iron drain pipes shall be made with tarred yarn and molten lead properly caulked and joints
to pitch fiber pipes shall be made with approved adopters.
The fixing of cast iron pipes and fittings shall be done by using: -
4.6
Vertical Runs
Ears on the pipes socket plugged and screwed or nailed to the wall by means of approved screws or nails or cast iron
malleable iron or steel highed holder bats for building in or nailing or screwing to the wall.
4.7
Horizontal Runs
Malleable iron or steel flat bats formed to two parts holder bats having the ring bolted together with 10mm bolts and with
10 mm diameter mild steel rod welded one end to the ring and threaded the other end for and; including nut and washer for
bolting to and including short lengths of mild steel channel or angle not less than 50x50 mm built into the structure or
bolted thereto with self drilling anchor bolts, or
Purpose made straps to the Engineer’s approval. Where cast iron ventilating pipes passing through sloping roofs,
necessary waterproofing by means of aluminum flashing well dressed down to the roof shall be provided.
Cash iron ventilating pipes passing through roofs shall terminate at least 300 mm above the roof level and shall be
protected against insect penetration by a copper wire mosquito-proof balloon grating securely bound on the top of the pipe
with stout copper wire.
At the foot of all coast iron discharge and ventilating stacks and where shown on the drawings and on other positions as
directed or necessary for cleaning, inspection pipes with door shall be provided. On cast iron junctions inspection pipes
shall be with large rectangular bolted door similar too “BURNBROS” No. 639.
5.
Valves, Cocks, Taps etc.
Draw-off taps and stop valves shall comply with BS 1010: 1959.
Copper-alloy gate valves shall comply with BS. 1953:1964.
Brass ball valves shall comply with BS 1212:1953 copper floats for ball valves shall comply with BS 1968:1953; and
plastic floats for same shall comply with BS. 2456:1954.
Sluice valves shall comply with BS 1218:1946
Manually operated mixing valves for ablutionary and domestic purposes shall comply with BS. 2060:1964.
Draining taps shall comply with BS. 2879:1957
Copper-alloy screw down stop valves shall comply with BS. 2060:1964.
All valves and cocks shall have the same flow areas as the corresponding pipes and shall be accessible for operation and
maintenance and suitably labeled by an approved method.
2.26
Specifications 28
Stop valves shall be fixed in position shown on the drawings to all branch services for group control, or where else
specified.
All valves, cokes and taps shall be of the correct pressure rating according to the recommendations of the relevance BS, or
the local authority. At commencement of the Contract, the contractor shall if necessary, ask the Engineer for guidance on
this point.
6.
Sanitary and other Appliances
The appliances shall be fixed in the positions shown on the drawings or as directed by the Engineer.
The Contractor shall include in his rates for providing all necessary screws, bolts, etc, together with all jointing material
required and also for temporary erecting and securing fittings in the required position of service and
discharge pipes,
taking down, storing and fixing after completion of wall finishing permanently fixing and connecting to service and
discharge.
Care shall be taken at all times and particularly after fixing to protect appliances from damage.
Upon completion of the work, all appliances shall be cleaned for plaster, paint, etc and carefully examined for defects.
7.
Steel Water Storage Tanks
Where specified as galvanized mild steel, water storage tanks shall comply with BS 417:1964. Galvanizing shall take
place after manufacture.
Pressed steel sectional water storage tanks shall comply with BS. 1564:1949 and shall be similar to manufacture
“BRAITHWAITE”.
Where positioned on roof or storey partition slabs, tanks shall be placed on minimum 150mm high supports to the
Engineer’s approval.
Water storage tanks shall be mosquito proofed by means of a well fitting bolted cover bedded on a thick gasket of felt or
bitumen.
Overflow pipes from tanks shall discharge into open air or into floor gullies where nearby positioned, with splay cut ends
mosquito proofed by means of wire gauze tightly bond on with stout galvanized wire.
8.
Water Meters
Water meters shall be installed by the Contractor in the positions shown on the drawings or where else instructed by the
Engineer.
9. Fire Fighting Equipments
Portable fire extinguishers shall comply with the following British standards:
a. Water type (soda Acid)
BS. 138:1948
b. Foam type (chemicals)
BS. 740:part 1:1948
c. Foam type (gas pressure)
BS 749:part 2:9152
d. Water type (gas pressure)
BS 1382:;1948
e. Carbon tetrachloride and chlorobrometnane
BS 1721:1960
f.
BS 3709:1964
Carbon dioxide type
g. Dry powder type
BS 3709:1964
h. Water type (stored pressure)
BS 3709:1964
2.27
Specifications 29
fire hose couplings and ancillary equipment shall comply with BS 336:1965, rubber reel hose shall comply with BS
4169:1959.
Underground fire hydrants and surface box openings for same shall comply with BS 750:1964.
The installation of hydrants and fire extinguishers shall be in accordance with C.P. 402:;101:1952 and CP, 402: part
3:1964 respectively.
If nothing else is specified, fire extinguishers and hose reels shall be supplied in the color “fire red” and be similar to
manufacture “ANDUS”.
10.
Testing
The whole of the water and discharge installations shall be tested to the satisfaction of the Engineer and the local authority.
The contractor shall provide all necessary testing apparatus and facilities for testing the installation and any defective work
shall be replaced immediately and shall be subject of retesting until found satisfactory.
Where pipes are to be chased into walls or otherwise concealed, the work shall be tested prior to lagging, making good
chases, etc.
All galvanized mild steel cold water pipes shall be tested to a cold-water pressure of 8.0kg/cm2. if nothing else is
specified.
The testing pressure shall be applied by means of a manually operated test pump or, in the case of long mains of large
diameter, by power-driven test pump. Pressure gauges shall be recalibrated before the test.
The test pressure shall be maintained by the pump for about one hour and a leakage as specified in C.P. 30 section 502j
shall be approved but any visible individual leak shall be repaired.
Valves, cocks and taps shall be absolutely tight under the test pressure for correspondence pipes as well as under a
small pressure.
All discharge pipes shall be tested with air or smoke to a pressure equal to 4mm water gauge and the pressure remain
constant for a period not less than 3 minutes. The water seals of all sanitary appliances, which are installed, shall be fully
charges and test plugs inserted into the opens ends of the Pipe works to be tested. With the pressure applied, every trap
shall retain not less than 25mm seal. All tests shall be repeated three times: the traps being recharged before each test and
the maximum loss of seal in any one test, measured by a dip stick, should be taken as a significant result.
All test shall be carried out in the presence of a representative of the Local Authority and/or the Engineer or his
representative.
Upon completion of work, including re-testing if necessary, the installation shall be thoroughly flushed out and water
pipes refilled with clean water ready for use.
2.28
Specifications 30
SECTION 9 – FLOOR, WALL AND CEILING FINISHING
1. Sand
Sand for backings, floor and wall finishes is to comply with BS 1199 Table 1
2. Aggregate
Coarse aggregate is to be as described
for “concrete work”
3. Cement
Cement is to be as described for “concrete Work”
4. Lime
Lime is to be non-hydraulic hydrated line to BS 980 Class “A” obtained from an approved source and run into putty at
least 24 hours before use.
5. Workmanship
All concrete beds or slabs shall be thoroughly brushed clean, hacked if necessary and well wetted and flushed over with
cement sand (1:1) grout immediately before screeds or pavings are laid.
Screed cement paying shall be laid in accordance with the relevant BS Code of Practice. Working joints between bays
of the floor finish should be placed in accordance with the Engineer’s instructions. Paying shall be damp cured with
sand or sawdust and kept damp for at least 7 days after laying.
All surfaces to be plastered or rendered must be brushed clean and well wetted before is applied. Joints of walling shall
be raked out and concrete hacked to form a key, care shall be taken to see that paving and plastering do not dry out
prematurely.
Adequate time intervals must be left between successive coats in two-coat work in order that the drying shrinkage of the
undercoat may be substantially complete. All internal and external angles shall be pencil rounded.
6.
In-Situ paving generally
Before laying in-situ floor finishes, the concrete beds are to be thoroughly hacked for key, cleaned off, thoroughly
wetted with clean water and coated with stiff cement slurry and rates for screed, granolithic and terrazzo paving are to
include for this. They are also to include for all necessary curing and protecting until the building is handed over to the
Employer.
7.
Cement and Sand paving
The cement and sand paving shall be in the proportions of 1:4 by volume and incorporating or treated with an approved
hardener.
8.
Concrete paving
The concrete paving shall be in the proportion of 1:1:4 by volume, the coarse aggregate used shall not exceed 10mm
nominal size. It shall be trowelled smooth with a steel float. If the Contractor wishes to use a power float he is to seek
the approval of the Engineer who may require him to complete a sample area before granting permission.
9.
Granolithic Paving
The aggregate for granolithic paving shall be in accordance with BS 1201 and shall be mixed in the proportions of
1:1:11/2 cement, fine and coarse aggregate respectively. The mix shall incorporate an approved hardener suitable for
incorporation and not for surface treatment. The water cement ration shall be kept as low as possible and shall not in
any case exceed 0.45. The paving is not to be laid to the full thickness described and to be finished with a wood float
and no extra cement trowelled into the surface which is to be laid true and level. The paving is to be thoroughly cured
after laying by covering with polythene sheeting and periodically watered to keep it moist for at least one week after
laying. The surface is to be polished with approved rotary carborundum discs mechanically operated coarse and fine
grain and with cement and sand slurry to produce a blemish-free surface. Cost of granolithic paving should include for
an approved colour plastic dividing strip.
2.29
Specifications 31
10. Terrazzo paving
The in-situ terrazzo shall consist of white or colored cement and marble aggregate; the colour of the cement and
aggregate shall be selected by the Architect. The mix shall comprise three parts of 6mm nominal aggregate to one part
colored cement by volume. The aggregate shall be clean and granular and shall not contain flaky particles or dust. The
underbed shall be cement and sand 1:4 by volume. An approved plastic dividing strip shall be inserted.
The terrazzo toping shall be laid to a minimum of 12mm thickness in plastic conditions while the underbed is still green
and this should be watered to minimize absorption from the topping. The terrazzo must be well taped into position and
rolled with a suitable hand roller. The topping should be allowed to take an initial set and then any surface voids must
be grouted up with damp sacking for at least 72 hours. When dry and hard, the surface shall be machine polished by
grinding with carborundum or tough stone disc of suitable grade and with rotary polishing pads.
11.
Wood Block or parquet flooring
Parquet tile flooring shall be as manufactured by Timsales or other equal and approved manufacturer or supplier. It shall
be laid on a smooth screed and fixed with approved adhesive. It shall be finally sanded and finished with two coats of
approved Two-pack epoxy wood varnish.
12.
Floor screed for P.V.C Tiles
The cement and sand paving shall be in proportion of 1:4 by volume and incorporating or treated with an approved
hardener.
13.
P.V.C Tiles Flooring and Skirting
P.V.C floor tiles shall comply with BS 3260. The tiles and accessories shall be supplied in the size and thickness
specified and in colours selected by the Architect and are to be fixed to the screed base with a suitable adhesive supplied
(or recommended) by the manufacturer and used in accordance with his instructions.
14.
Tyrolean Rendering
Tyrolean rendering is to be applied in four coats to obtain a total thickness of 22 mm and adequate time intervals must be
allowed between successive coats in order that the drying shrinkage at each undercoat may be completed. The first coat
shall consist of cement, lime putty and sand mixed in the proportions of 1:1:6 by volume applied to a minimum thickness
of 10mm and finished with a wood float finish. The second, third and fourth coats shall consist of one part of natural
cement to four parts of fine white chipping to approval applied with an approved “flicking machine” so that the first coat is
completely covered and a thickness of 12 mm is obtained.
15. Internal Plaster
Internal plaster to wall and ceiling shall be applied in two coats and adequate time intervals must be allowed between
successive coats in order that the drying shrinkage of the undercoat may be substantially complete. The first coat must be
well scratched, keyed and wetted to receive the finishing coat. The finishing coat shall be finished smooth with a steel
float but care must be taken not to overwork the surface in order to minimize the incidence of shrinkage cranks. All
internal and external angles shall be pencil rounded.
Internal plaster, unless otherwise described, shall be lime plaster of 15 mm minimum overall finished thickness applied in
two coats, the first coat consisting of cement, lime putty and sand mixed in the proportions of 1:2:9. The finishing coat
shall be a skim coat comprising cement and lime putty in the proportions of 1:10
Cement plaster is to be employed where specified on the drawings and is to be applied into coats of approximately
equally thickness to a total of 15mm minimum overall finished thickness. The composition of both coats shall be the same
and shall comprise cement and sand (1:4) but a small percentage addition (not more than 10%) lime putty may be
permitted if the Architect considers that this will reduce the incidence of shrinkage.
2.30
Specifications 32
The Contractors shall cut out and make good cracks, blisters and other defects and leave the whole of the plastering and
rendering perfect at completion. When making good defects the plaster shall be cut out to a rectangular shape with edges
undercut to form dovetailed key, and all finished flush with the face of surrounding plaster.
16. Glazed Ceramic tiles
16.1 Glazed wall tiles shall be from an approved manufacturer and shall conform to the requirements of BS 1281. Tiles shall be
white with slightly rounded or “cushion” edges and unless otherwise specifically described shall be size 200x300x 6mm
thick. Tiles shall be laid with continuous straight joints and internal angles shall be butt jointed. Rounded on edge tiles
shall be used at all external angles and at edges of panels. Tiles shall be bedded in approved tile adhesive and pointed in
white cement.
16.2 Glazed floor tiles shall be from Saj Ceramics or other equal and approved manufacturer and unless otherwise specifically
described shall be size 300x300x 8mm thick. Backing to tiles is to be cement and sand in the proportion of 1:4 rendering in
one coat to a minimum thickness of 25mm finished with wood float.
16.3
Backing for wall tiles is to be cement and sand in the proportion of 1:4 rendering in one coat to a minimum thickness of
12mm with wood float finish.
2.31
Specifications 33
SECTION 10 – GLAZING
1. Glass
Glass generally shall comply with the requirements of BS 952 and shall be free from bubbles, specks, waves, flows or
any other defects.
Clear sheet glass shall be 32 oz. (4mm nominal thickness) flat drawn sheet of ordinary glazing quality unless otherwise
described.
Polished plate glass shall be 6 mm thickness.
Glass for louver blades shall be clear sheet flat drawn or rough cast obscure rolled glass to the thickness shown in the
drawings with all exposed edges ground and polished.
2.
Putty
The putty shall be hard-setting tropical putty to BS 544
3.
Workmanship
All glass is to be accurately cut to fit easily into rebates with a tolerance of 2mm all round. It is to be well puttied at the
back and to be sprigged with non-ferrous pins. The putty is to be mostly trimmed and cleaned off and care must be taken
that it does not show beyond the sight lines of the sashes. All rebates must be treated with one coat lacquer (as described
under “painting” hereafter) prior to glazing.
4.
Cleaning and Protecting
The Contractor must allow in his rates for the protection of all work in this section and for replacing any cracked,
scratched, broken or defective glass prior to handing over to the employer. He must also allow for cleaning all the
windows inside and out and other glass on completion with an approved window cleaner and wash-leather and for removal
of all paint splashes.
2.3
Specifications 34
SECTION 11 – PAINTING
1. Colour Range
All painting shall be carried out in colours selected by the Architect.
2. Materials
Paint generally shall be ready mixed and supplied by one of the manufacturers listed below and delivered to the site in
the sealed containers clearly labeled with the manufacturer’s name, type of paint and colour. Oil based priming paint
shall comply with BS. 2521 – 2524 inclusive.



Crown Paints
Basco Paints (K) Ltd
Sadolin Paints
Paints are to be used strictly in accordance with the manufacture’s name, instructions, type of paint and colour. Oil
based priming paint shall comply with BS. 2521 – 2524 inclusive.
3. Preparation
All surfaces to receive treatment are to be clean and dry before paint application and surface irregularities are to be
removed by filling or the use of suitable abrasives.
4. Plastered Surfaces
Internal plastered wall surfaces generally to be treated with plastic emulsion paint, surface are to be allowed to dry out
thoroughly prior to paint application. All cracks and surface imperfections are to be cut back and filled with a patent
filler in accordance with he manufacturer’s instructions and rubbed down to a true and even surface.
Apply one primer coat thinned with water and two finishing coats of “Crown Paints” or other approved plastic emulsion
paint in accordance with the manufacturer’s instructions. When specified internal plastered wall surface are to be
painted gloss. In addition to the preparation described above, apply one coat of an approved alkali-resistant primer and
flat down with 320 grade “wet dry” abrasive paper. Apply two finishing coats of approved gloss paint lightly rubbed
down in accordance with the manufacturer’s instructions.
5. Woodwork Preparation
Large knots in woodwork are to be cut back and replaced with sound wood or scorched back and after priming the
surface made good with stopping. All knots are to be treated with two thin coats and patent knotting free from resin,
after priming all nail boles and other imperfections shall be filled with stopping and the whole surface rubbed down to a
smooth even surface. The stopping must be “Sadofil” or other approved filler.
6. Metal Work
All rust and loose scale on steel and iron work must be removed by wire brushing and rubbing with emery and treated
with one coat of red oxide primer or other zinc paint in accordance with the manufacturer’s instructions. One coat of
zinc chromate primer will then be applied followed by two undercoats and one finishing coat of gloss paint as described
for woodwork above. The Contractor is to note that where mild steel burglar bars are housed into wood frames the full
length of the bar is to be treated before fixing.
Galvanized metalwork is to receive one coat of white spirit or mordant de-greasing solution washed off prior to the
application of calcium plummet primer followed by two undercoats and one finishing coat of gloss as previously
described.
Galvanized metalwork is to be painted only where instructions are given by the Architect as in some cases galvanized
metalwork is to be left untreated.
2.33
Specifications 35
SECTION 12 – ELECTRICAL INSTALLATIONS
1.
General Conditions and Requirements
1.01 Working Drawing
The Contract Drawing are detailed preliminary drawings whose purpose is to establish the requirements and scope of
the Electrical Works and allow tenderers to prepare their tenders. They are not intended to be working Drawings and
must not be used as such.
The Contractor shall prepare all such Working Drawings. The Working Drawings shall be complete in such detail
that the Electrical Works can be executed on site and that the Engineer can approve the Contractor’s design and
intentions in the execution of the Electrical Works.
If the Contractor requires any further instructions, details, contract Drawing or information drawings to such
information as may be required in writing to the Engineer.
All working Drawing shall be submitted to the Engineer for approval. The Engineer reserves the right to reject any
work commenced prior to such approval.
Working Drawings to be prepared by the Contractor shall include but not be restricted to the following.
a. Any drawings required by the Contractor and the Engineer to enable structural provisions to be made. They
shall include detailing of holes, chases, fixings, foundations, cable work ducting whether below or
aboveground, in or outside or below buildings.
b. General arrangement drawings of all plant, control panels switch and distribution boards, fittings and
apparatus any part thereof and installation layout arrangements of such plant and apparatus.
c. Layout drawings of all concealed and surface ducts and conduits, showing cables and wires concealed.
d. Detail and arrangement drawings for any alternative equipment approved by the Engineer.
e. Such other drawings as are called for in the text of the Specifications or schedules or as the Engineer may
reasonably require.
Two copies of all working Drawings shall be submitted to the Engineer for approval. Two copies of approved
working Drawings shall be submitted as soon as possible thereafter. There shall be no deviation from approved
working Drawings without the Engineer’s written permission. The working Drawing shall be based upon the metr5ic
system i.e. M(meters) and/or mm (millimeters). Approval by the Engineer of working
Drawing shall neither relieve the Contractor of any of this obligations under the Contract or relieve him of correcting
any errors found subsequently in the approved working drawings or other working Drawings and in the work on site
or elsewhere associated therewith.
Record Drawings
During the execution of the works on site the Contractor shall, in a manner proved by the Engineer, record on
Working Drawings and Contract Drawings all information necessary for preparing Record Drawings of the installed
Electrical Works. Marked-up drawings and other documents shall be available to the Engineer as he may require for
inspection and checking.
Record Drawing may include approved Drawing adjusted as a correct record of the installation of the Contract
works, subject to the approval of the Engineer.
2.34
Specifications 36
They shall include but not restricted to the following drawings or information;
a. Working Drawing and contract Drawing amended as necessary but titled “Record Drawing” and certified
as a true record of the “as installed” electrical works. Subject to the approval of the Engineer such working
drawings as may be inappropriate may be omitted.
b. Fully dimensioned drawings of all plant and apparatus installed or connected by the Contractor.
c. General arrangement drawings of equipment, other areas containing plant forming part of the Electrical
Works and the like, including the accurate size and location of plant and apparatus suitably cross-referred
the drawings mentioned in (b) above and herein after
d. Routes, types, sizes and arrangement of all electric ca les, conduits, ducts and wiring including the date of
installation of concealed work.
e. Schematic diagrams of individual plant, apparatus, and also those applicable to system operation as a whole.
f.
Wiring diagrams of plant and apparatus.
The Contractor shall supply for fixing in sub-stations, switch rooms, boiler houses, plant rooms, pump houses, the
office of the Maintenance Engineer and similar places such suitable instruction charts, schematic diagrams of
instrumentation and of the electrical regulations as may be requested by the Engineer provided that the said charts,
diagrams etc, relate to installations forming part of the Electrical Work. All such charts and diagrams shall be of
suitable plastic materials on a stiff backing and must be approved by the Engineer before final printing.
Market-up drawing of the installation of the Electrical Works shall be kept up to date and completed by the date of
practical or sectional completion.
Market-up drawings of the installation of the installation of the Electrical works shall be kept up to date and
completed any the date of practical or sectional completion.
Two copies of the Record Drawings of the Electrical Works and two sets of the installation charts and schematic
diagrams on stiff backing shall be provided not more than one month later. The Engineer reserves his right of review
the marked-up drawings to see if they are in an up to date condition before approving the Contractor’s requests for
interim payments.
Record Drawing shall be prepared on approved transparent linen or plastic material suitable for reproduction by the
Dye line process or similar.
If the Contractor fails to produce to the Engineer’s approval either (a) the market-up drawing during the execution of
the Electrical Works or (b) the record Drawings etc, within one month of sectional or practical completion the
Engineer shall be at liberty to have these drawings produced by others. The cost of obtaining the necessary
information and preparing such drawings etc will be deducted from the outstanding payments due to the Contractor.
For preparation of Working and Record Drawings the Contractor will be supplied with prints of Contract Drawings
and Architect Drawings where required.
Samples
Samples are physical examples furnished by the Contractor to illustrate materials, equipment and workmanship, and to
establish standards by which the Works will be judged. Wherever required in the Particular Specification the
Contractor shall submit samples in adequate time so that no delay is caused, and he shall include in his tender price
for all; such samples and subsequent amending of same if the Engineer finds it necessary in order to attain the required
standard of workmanship or materials.
2.35
Specifications 37
The Engineer will review and approve samples with reasonable promptness so that no delay is caused, but only
conformity with the design concept of the works and with the information given in the Electrical Contract Documents.
The Engineer’s approval of a separate item shall not indicate approval of an assembly in which the item functions.
1.04
Maintenance manuals
Upon practical completion of the Electrical Works the Contractor shall furnish to the Engineer four copes of a
maintenance Manual relating to any equipment or plant forming part of the Electrical Work.
The Manual shall be loose-leaf type, internal A4 size with stiff covers. It may have in several volumes and must be
sub-divided into sections, each section covering one engineering service system. It shall have ready means of
reference and a detailed index.
The Manual shall contain full operating and maintenance instructions for each item of equipment, plant and apparatus
set up in a way dealing systematically with each system. It shall include as may be applicable to the Electrical Works
the following and any other items listed in the text of this specification or the Particular Specification.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
System Description
Plant
Valve operation
Switch operation
Procedure of fault finding
Emergency procedures
Lubrication requirements
Maintenance and servicing periods and procedures
Colour Coding legend for all Services
Schematic and Wiring Diagrams of plant, apparatus and Switchgear
Record Drawing, true to scale, reduced to international A4 size
Lists of primary and secondary spares.
The Manual shall be specially prepared for the Electrical Works, and manufacturer’s standard descriptive literature
and plant-operating instruction (cares) will not be accepted for inclusion unless exceptionally approved by the
Engineer.
The Contractor shall however, affix such cards, if suitable, adjacent and apparatus. One spare set of all such shall be
furnished to the Engineer.
Co-operation
The contractor shall carry out his work in accordance with the working programme.
The Contractor shall co-operate with the Engineer in planning the installation before work is commenced.
Particular care shall be taken to ensure that there is close co-operation with the other sub-Contractors in stalling
services to prevent fouling of services positions, cable routes, switch positions, access positions etc.
The Contract Drawings give a general indication of the intended layout. The positions of the equipment and
appliances and also the exact routes of the mains and distribution conduits, trucking, cables, etc shall be shown on
Working Drawing and approved by the Engineer before installation is commenced.
When large items of equipment such as switchboards, trunking or ling lengths of conduit ate to be installed or cable
to be stretched out before drawing in, the Contractor shall provide, in adequate time, access for installation when work
is commenced on site.
2.36
Specifications 38
The contractor shall make sure the correctness of connections he is making to all items of equipment supplied
under this and other contracts before they are put into operation. Details of operation, temperature, voltage, power,
rating, etc shall be confirmed to others and confirmation received before the system is first operated.
Cutting away and Making Good
All away and all making good will be carried out by the Contractor and he will be responsible for the correct making
out of all chases and holes.
The contractor will be responsible for the provision of all cable ducts and trenches unless anything else is stated in
the Particular specification or marked on the Contract Drawing.
The Contractor shall include in his tender for the plugging of all walls, ceiling and floors to facilitate the fixing of
the conduits, accessories and all other parts of the electrical installations. Any purpose-made fixing brackets shall
also be provided and installed by the Contractors.
The Contractor shall also be responsible for ensuring that runs for floor or wall, chases, holes to be cut or left are
marked out at an appropriate stage of the structural works. All wall chases shall be perpendicular or horizontal to the
finished floor level, angled chases will not be permitted, but for exceptional circumstances.
The contractor shall at the earliest opportunity set out the position of all holes necessary for the passage of ducts and
conduits or otherwise required in connection with his work.
The Contractor shall pay particular attention to the fixing and alignment of switches, socket outlets, telephone outlets
and similar boxes.
1.07 Structural Provision for the electrical Work
Preliminary major structural provision has been made for the Electrical /works on outline information ascertained
ensuring the preparation of the Electrical Contractor sates otherwise when submitting his tender.
Any minor structural provisions or alternations to major structural provisions required by the contractor shall be
shown on working drawings to the Engineer within 30days of the date of award of the Electrical Contract.
No request for alterations to preliminary major structural provisions will be approved except where they are
considered unavoidable by the Engineer. They will in no case approved if building work is so far advances that they
will cause additional costs or delays in the work.
Concealed Work
The Contractor will be responsible for the extra runs and placing of conduits and boxes; which are to be cast in
concrete ceiling, floors, walls, columns and beams, and for the proper fixing of the conduits and boxes the shuttering
and the steel reinforcement work.
During the procedure of casting the Contractor must provide a labor to attend the work and if necessary to be ready
to make good any damage on the Contractor’s work caused by laborer when casting.
When conduit are concealed, the boxes shall be in a exact position relative to the finished plaster of such other finish
as may be applied to enable cover plates to be accurately positioned. The contractor shall, if required, indicate
suitable catum points from which all measurements can be taken. It is the responsibility of the Contractor to ensure
accuracy of fixing.
Position of Service, Equipment’s, Fittings and Apparatus
The contractor shall be responsible for verifying all dimensions relative to his work by actual measurements taken on
Site.
2.37
Specifications 39
The routes of service and approximate positions of apparatus ate shown on the Contract Drawing but their exact
positions shall be determined by approved dimensional details on Working Drawing or on site by the Engineer in
Consultation with the Contractor.
The Contractor shall ascertain on site that his work will not foul other services and in all cases the services through the
ducts must be arranged to allow maximum access for maintenance and repair. Any work which has to be carried out
twice due to negligence in this respect will be his responsibility.
The contractor will be deemed to have allowed in his Tender for locating terminal points for services (eg. lighting
switches, socket outlets, lighting points) in the correct positions. The contractor sold refers to the particular
specification for exact mounting distance and heights.
1.10 Identification of Plant and Components
All main switches, circuit breakers, isolators, switch fuses, control panel, switch – and distribution board shall be
neatly and clearly labeled externally with identification marks corresponding with those on drawings or in
specifications.
Details of the lettering of the labels and the method of mounting or supporting shall be approved by the Engineer
prior to manufacturer.
1.11
Painting
Unless anything else is stated in the specifications, the Contractor must include in his tender for all protective and
finish painting of the Electrical works including colour of service pipe work to the approval of the Engineer. Special
requirements, if any, are specified in the text of the particular Specification. The painting shall be carried out by a
skilled painter.
1.12
Supply by others
The installation only of materials and equipment from a supplier having a direct agreement with the Employer shall
mean the taking delivery where directed, checking with invoices, idents or other delivery documents, reporting and
claiming damages for shortages and damaged goods, defraying demurrage, signing for as having been received in
good order, transporting to and around on site, unloading, storing, covering and protecting until the time of fixing
replacing anything lost or damaged, unpacking, sorting, assembling, hoisting to required levels and installing as
required.
1.13
Payments
The contractor will be paid in accordance with the terms of the Contract. No payments shall be due under the
contract unless the quantity Surveyor has included in; a certificate the; amount covering that part of the Electrical
Works for which payment is due.
The percentage of certified value retained shall be 10% unless otherwise specified; in the Bill of Quantities for the
Contract.
No certificate so issued by the Quantity Surveyor shall be considered conclusive evidence of the sufficiency of any
work or materials to which it relates so as to relieve the Contractor from his liability to execute the works in all
respects in accordance with the terms of and subject to the conditions of this and the particular Specification, or from
liability to make good all defects as provided thereby.
1.14
Inspection
The Engineer shall have full rights t inspect the work in progress and all materials and equipment for use in the
instillation prior to its erection whether these are on site or in the Contractor’s workshop.
The Contractor shall allow for all reasonable access to the works for this purpose, as well as the provision of necessary
laborer, scaffolding, etc.
2.38
Specifications 40
1.15 Cleaning
The site shall be kept clean and tidy at all times and all litter removed regularly.
1.16 Testing
All tests required by B.S the Regulations for the Electrical Equipment of Buildings and the license shall be carried out by
the Contractor.
Tests on insulation and earth continuity mentioned in the above rules and Regulations shall be carried out by the
Contractor on the completed installation, as well as all running tests for insulation, continuity of all conduit and trunking
systems and earth connections.
The Contractor will be required to gee all completion forms etc, to enable the installation to be tested upon completion;
similarly a reasonable notice should be given to thee Supply Company of the period of completion to avoid delay of such
tests (essential before handling the installation over to the Employer). The Contractor shall pay all fees arising from the
testing and any subsequent re-testing of the installation.
All tests must be carried out in the presence of the Engineer or such other person appointed for this purpose, but the
Contractor alone will be responsible to the authorities for the installation’s compliance with rules and Regulations.
The Contractor shall provide precise instruments and all labour for testing. Test results shall be submitted the Engineer
within fourteen days of the contract and the Contractor shall issue the /Certificate upon completion as required under the
above referred regulations.
Any defects, faults or omissions of the installations that might be apparent by such tests shall be corrected
contractor at his own expense.
by the
1.16 Tools and Testing Equipment
When required in the Particular Specification the Contractor shall in separate boxes provide sets of special tools, general
and special testing equipment required for normal maintenance serving of items of plant and major apparatus forming part
of the Electrical Work.
The boxes shall be clearly marked inside as to which item of plant or apparatus the contents relate.
All special tools and testing equipment may be used by the Contractor in the execution of the Electrical Works but will not
be accepted as part of the Electrical works by the Employer unless they are handed over in clean and undamaged condition
and in perfect working order.
A schedule of boxes and items therein shall be submitted by the Contractor to the Engineer for approval.
Boxes shall be of such sizes that they may be conveniently carried by not more than two men and are capable of being
suitably and consistently stored in a central store.
1.18 Hand Over Completed Installation
The Electrical Works shall be considered complete and the maintenance and defects liability period shall commence only
when the Electrical Works and Supporting services have been tested, commissioned and operated to the satisfaction of the
Engineer and approved and accepted by the Employer, provided always that the handing over of the Electrical Works shall
coincide with the completion of the Main Contract Works.
The following procedure will apply:
1) Upon completion of the Electrical Woks to the satisfaction of the Engineer, the Contractor will make a request to
the Engineer to hand over the installation.
2) The Engineer will arrange a visit or series of visits on site to satisfy all parties of the correctness of the installation
so that the client can accept the installation from the Contractor.
2.39
Specifications 41
3) The Contractor must demonstrate to the employer every service connected and instruct the Employer’s operating
staff as to its efficient and safe use and to explain fully all-electrical drawings.
4) The Contractor will prepare Approved Hand Over Certificates and check lists of all controls and items of
equipments, tools, spares etc.
5) Copies of all Hand Over documents should be handed to the Engineer, which will signify the start of the defects
liability period.
2.
Quantity of materials and Workmanship
2.01
Materials and Workmanship Generally
All materials, fittings and accessories shall be new as specified and in accordance with the requirements of the current
rules and Regulations where such exist and with the relevant British Standards.
Uniformity of manufacture and type of fittings and accessories shall be preserved as far as practicable throughout the
Electrical works.
The Contractor shall, if required, submit samples of materials to the Engineer for his approval before placing an order.
Wherever in the Contract Documents the practice is adopted of specifying a particular item as “similar to” or “as” that
listed in a particular manufacture’s catalogue, it is to be clearly understood that this is to indicate the type and quality
of the equipment required. No attempt is being made to give preference to the equipment supplied by the
manufacturer whose catalogue is quoted. The onus of proof as to equivalent quality will rest with the Contractor
who’s tender to allow for the makes described.
Where particular manufactures are specified herein no alternative makes will be considered without weighty reasons
and the Engineer shall be at liberty to reject any other makes.
The contractor will be entirely responsible for all materials, apparatus, equipment, etc furnished by him in connection
with the Electrical Works and shall take all special care to protect all parts of finished work from damage until it is
handed over to the Employer.
The work shall be carried out omnipotent workman under skilled supervision. The Engineer shall have the authority
to have any part of the work, which is executed in an unsatisfactory manner, removed and replaced.
2.02
Fixing
All apparatus and accessories shall be rigidly fixed in position by means of correct number and size of fixing bolts,
screws, etc as prescribed by the manufacturer of the apparatus. Flush boxes fort switches, socket outlets, and similar
accessories shall be fixed in the wall with a wood screw of appropriate length.
Conduit boxes to support, lighting, fitting or other equipment, shall be screwed to the ceiling or wall in addition to the
support offered by the conduits.
Raw plugs or similar shall be used fixing smaller equipment to walls or ceilings. For large equipment raw bolts or
similar shall be used.
2.03
Earthling
The Contractor shall earth the entire installation in accordance with the regulations and the license’s bylaws. The
entire system of metallic conducts and trunking, metallic sheaths of cables, cases and enclosures of Switchgear and
electrical apparatus shall be connected to the earth point according to the current rules and Regulations.
The Contractor shall supply and install conductors, cables, copper tapes, earthling rods, etc for the installation of the
complete earthling system.
2.40
Specifications 42
2.04
Wiring in Conducts
All wiring must be carried out in PVC insulate single core copper cables to the relevant British Standard.
The wiring shall be carried out by looping cables from point. Where tee-offs or other joints of conduits required, a
proper draw-box shall be provided. The entire wiring shall be so organized that later changes and renewal can take
place without cutting down structural parts or removing the fabric of the building. The Contractor must allow in his
tender for sufficient fixing of all wiring items.
The wiring shall comply with the colour code requirements of the relevant authorities.
All cables shall draw in after the installation of the entire conduit system and after plaster has dried out. Draw wires
shall not thread in at the time conduits being installed.
Not more than 6 final Sub-circuit cables shall run in conduits feeding outlet boxes. Not more than 8 cables running
straight back to the distribution board shall be enclosed in one conduit.
Sub-mains shall not be enclosed in the same conduit as other circuits.
Lighting sub-circuits shall not be enclosed in the same conduit as general-purpose power sub-circuits.
Single-phase sub-circuits shall not be enclosed in the same conduits as three phase sub-circuits.
Extra low voltage services shall be run n separate conduits systems. A dedicated conduit system for each service shall
be provided.
Great care shall be taken to ensure that no twisted cables enter the conduits.
2.05
Cables and Conductors
All cables shall be with copper cores unless otherwise specified.
All cables shall be delivered to the site in their original packing with all seals intact.
Cables dimensions shall comply with Regulations and with the information given on the drawings of the
specifications.
All cables shall confirm the relevant British Standard. No cable dimensions smaller than 1.5sq mm shall be used for
light and control circuits.
No flexible cords smaller than 0.75 must be used. The appropriate jointing paste is to be used where aluminum
conductors are connected to copper or brass elements in switchboards etc, to avoid dissimilar metal chemical action.
Cables in horizontal and vertical runs shall be clamped in such a way that stresses in the cables are avoided.
Where no trays or trunking is installed the cables shall be fixed to structures by means of screw fixed saddles.
Common saddled shall be used where cables are grouped. All cables shall be terminated with suitable compression
type cable glands of the correct size.
All low voltage cables shall be thoroughly soldered or joined wit reliable connectors, which hold the conductors in a
firm grip without damaging the wire and without any possibility of vibrating loose.
Mineral insulated cables shall be of 440-volt grade unless otherwise specified. Where specified or where installed in
corrosive situations they shall be sheathed with PVC sleeves.
2.41
Specifications 43
The greatest care shall be taken when terminating mineral insulated cables and insulation tests shall be taken 24 hours
after a cable has been sealed.
Mineral insulated cables shall, where no cable trays exist, be fixed copper clips of an approved design maximum 35
cm centers on vertical runs and maximum 25 cm centers on horizontal runs.
Through joints will only be allowed at runs exceeding the length to which cables can be manufactured.
Sealing of mineral insulated cable ends shall be by means of cold screw-on type seals and universal glands of same
manufacture as thee cable.
Where PVC insulates steel wire armored cables enter switchgear and other apparatus they shall be made off with
suitable brass glands in corporation in cone grip armor clamps, as approved for use b the cable manufactures, with the
whole gland enclose in a PVC shroud.
At all points of cable termination, a reasonable excess length of cable shall be included to allow for future alteration.
Any exposed conductor or cable end shall be taped with PVC tape to thee thickness of the original insulation. the
taping shall be of the same colour as the original insulation.
Cables rising from the floor in exposed positions shall have some form of kicking protection for approximately 1 m
above floor level. This may be either short length or bushed conduct, or metal channel, and the top end shall be
sealed with plastic compound.
Cables shall be taken off drums with the drum supported on a spindle and cable drum jacks. Where feeding cables into
horizontal routes the cables shall be run the underside of the drum, where feeding to a manhole. Cable shall be run off
the top of the drum.
Care must be taken to break the rotation of the drum preventing cable turns on the drum form running loose.
Cables shall not be dragged over ground, concrete or other surfaces, but must be either adequately suppo9rted on
rollers and/or man handled into position. Any damage to the serving or sheathing of cables shall be brought to the
Engineer’s notice in writing and his instructions that it shall be repaired or replaced is to be carried out.
2.06
Conduits
Plastic conduit shall be of best quality new super high impact grade, heavy gauge, complying with BS 4607, (Rigid
PVC plasticised conduit as manufactures by EA cables ltd) suitable for plain connections. Conduits badly formed or
bent or damaged in any way must not be used.
All PVC conduit connections shall be made using plain bore couplings and special waterproof adhesive for use by the
conduit manufacturers. Bends shall be made using either correct size binding springs or rubber cords. Earth continuity
shall be maintained by running a suitably sized tinned copper conductor inside the tubing. Connections to boxes, etc
shall be down with brass nuts, bolts and washers.
Conduits not cat in or concealed shall be galvanized conduits of heavy gauge welded and screwed steel and shall
comply with BS 4568.
The exposed threads and damaged or corroded surface of any type of steel conduit shall be cleaned and then treated
with two coats of zinc rich paint (Zinc content 92-95 percent) all according to the manufacturer’s instructions. One
such paint is “Galvanized SB”, Expedite ltd.
All joints shall be screwed up tight and all conduit ends cut square with all burrs and roughness removed.
Conduits having a diameter of less than 20 mm shall not be used in the Electrical Works.
2.42
Specifications 44
Conduits to be concealed in structures cast in situ shall bee secured to the steel reinforcement with heave binding
wire, spaced not than 900 mm apart to prevent movement of the conduit and boxes during the pouring and vibrating of
the concrete.
Boxes shall be filled with paper to prevent ingress of concrete, and all boxes shall be securely fixed to the shuttering
with nails or other measures, which must not be visible after removal of the shuttering unless they later can be
concealed e.g. by plaster. Conduits shall be installed after the first grid of steel reinforcement has been securely fixed.
All open ends of conduits shall be protected by couplings plugged with a suitable non-metallic stopping plug.
Conduits run in chases in walls of the like shall be fixed by means of mild steel pipe hooks or saddles spaced not more
than 900 mm apart. Where the conduit is concealed behind plaster it shall be sunk to a dept of 10 mm below finished
plaster level before application of the plaster, i.e. thickness of plaster shall not be less than 10 mm when covering
conduits. Conduits fixed to the surfaces of walls or ceilings shall be fixed by spaced bar saddles fixed by spaced bar
saddles fixed not more than 900 mm apart.
Surface conduits shall also be fixed 200 mm from boxes, the boxed themselves being securely fixed. Where such and
arrangement of boxes and saddles would prove both unsightly and unnecessary, short lengths of conduit not exceeding
900 mm between boxes need not be secured further than by connection to the adjacent boxes. In such cases the
Engineer reserves his rights to insist upon having additional fixings provided should he for any reason whatsoever
consider additional fixing necessary.
Special care shall be taken to prevent dirt and plaster to enter any section of the conduit system.
All bends in conduits shall be formed without any decrease or increase of the cross-sectional diameter of the conduits.
The radius of the bend shall not be less than indicated by the Regulations. For concealed work this radius shall be
increased. No manufactured tees, elbows and bends will be permitted in concealed work. All conduits shall be
thoroughly cleaned for sharp edges and burrs removed.
The conduits shall be installed unnecessary bends or changes in direction. Conduits shall be laid in straight lines.
Where straight rows of conduit are, installed, inspection boxes shall be placed at not more than 15 intervals. They
shall be not more than 4 easy bends or 2 right angle bends between boxes.
In surface conduct system inspection bends may, where it seems convenient, replace inspection boxes, but only with
permission form the Engineer.
Cables capacities of conduit and trunking shall be in strict accordance with the current IIEE wiring Regulations (ref
15th …, appx.12)
Where particular installations are called for which fall outside these tables, then a space factor of 50% should be used.
2.07
Boxes
Conduits boxes installed concealed in connection with plastic conduits shall be of plastic.
Boxes installed externally shall be galvanized and where exposed to direct weather conditions compound filled.
All metal boxes shall be fitted with an earth terminal.
Deep boxes or extension rings on standard circular boxes shall be used where necessary in order to bring the front of
each box flush with the ceiling or wall.
All screws for holding boxes, lids etc in position shall be screwed in. Adaptable boxes shall be screwed by minimum
four screws. Conducts shall enter such boxes by means of conduit sockets. Joint boxes without connectors will not be
allowed.
2.43
Specifications 45
All boxes shall match the equipment installed in the box and preferably genuine parts produced by the same
manufacturer shall be used.
All necessary screws, plugs, bolts and other fixings for electrical equipment must be supplied by one Contractor and
included in his tender. All fixing on concrete or stone structure shall be by means of raw plugs or similar plugs in
plastic.
All spare ways in boxes left for possible future extension shall be fitted with stopping plugs
2.08
Trunking and Cable Trays
The maximum number of cables in trunking shall be that which theoretically would occupy 50% of the cross sectional
area of the trunking. If else is specified the metal trunking shall be similar to that manufactured by “Walsall”. All
sections shall be rigidly fixed together and fixed to buildings structure at intervals of not more than 1200mm. all metal
trunking shall be made electrically continuous with copper links across each joint.
The trunking shall be standard wall or sectional type, and shall have a removal cover, which shall be accessible
throughout the entire length of the installation. Covers shall be fixed to the trunking with screw or similar devices,
which shall be captive within the cover plate. All steel trunking shall be hot galvanized. Further surface treatment to
trunking shall be in accordance with the particular specification.
Cable trays shall be manufactured of perforated hot galvanized steel plate with returned flanges. Suspensions shall be
at intervals of not more than 1500 mm.
All supports and fittings shall be of the same finish as the tray.
2.08
Switchboard
Tender prices must include the supply of all switchboards and distribution boards where not otherwise stated. All
costs for installation in the position indicated on drawings and the cleaning and connection of all in and outgoing
cables to the correct terminals must be included in the tender.
Each switchboard section shall be completed, fully wired and checked out at the factory or workshop and shall require
a minimum of installation work on the site. Modular construction shall be used wherever practicable and provision
shall be made for simplified servicing, replacement and maintenance without major dismantling.
All switches, switch fuses, circuit breakers, etc shall be numbered in agreement with the Engineer with engraved
plastic labels.
Were space on switchboard s is provided for future components to be installed as shown on the drawings, all auxiliary
parts shall be provided and installed so that future components may be installed and connected with the least possible
inconvenience. Full safety measures shall be provided with all such spaces.
The tender shall include any provision, which may be required, for the installation of the licensee’s metering
equipment.
Switchboards and distribution boards shall be dust proof, IP54, if nothing else is stated. They shall have a flexibility
of arrangement so that future extensions are possible. Switch fuses shall be so installed that when front cover are
removed all incoming and outgoing connections are easily accessible from the front. Neutral and earthing bars shall
be provided with each panel in the full length of the panel having connectors equivalent to the number of switches.
The arrangements shall be so that complete switches may be disconnected and withdrawn without too extensive work.
All busbars and busbar connections shall be clearly marked with colors according to the passes; red, yellow, blue and
the neutral black. The busbars shall be orderly arranged in the panel and furthermore so that extensions to both sides
may be made in the future.
2.44
Specifications 46
Removable insulated shields shall be provided for protection against contact with live parts. All panels arrangements
shall be of sufficient mechanical strength to with stand the influences of short-circuit currents.
All wiring within each switchboard shall be orderly laced and bonded to the panel structure, the wiring insulation
being colored according to the above busbar colour scheme.
Where wiring passes through holes in metalwork protection by rubber bushes shall be provided.
Where single core cables are used care shall be taken to prevent inductive eddy currents.
Conduits and cable entries shall be provided at the top and the bottom of all equipment.
Where wiring is installed to panels, which are supplied and installed by others, the cables shall bebrought into the
panel and sufficient length left to permit the making off and connection by others to the terminals. Similarly where
which is installed by others to a panel supplied under this contract, the final connection of the cables to the terminals
shall be carried out as part of his contract.
Each panel shall be fitted internally with circuit lists and a schematic drawing the distribution system, mounted on a
plastic covered frame.
2.09
Switchgear
Control voltage of all contractors, automatic switchgear and motor protection gear shall be 240 V A C if not
otherwise specified. The short circuit capacity of all circuit breakers, switchgear and motor control gear shall be in
accordance with the Regulations.
All fused switch units shall be supplied and installed complete with Class Q H R C cartridge fuse links complying
with B S 88, and shall be contained in metal clad, dust proof, gasket sealed individual enclosure with nondetachable steel operating handles which shall be capable of being locked in either the “on” or the “off” position.
The fused switch units shall have fault ratings at least equal to the fault rating of the switchboard in which they are
installed.
2.10
Switches, socket Outlets and Spur Units.
Switches, socket outlets and spur units shall, if nothing else is specified, be with plastic plates, ivory white, and
installed in flush pattern boxes.
Surface mounted switches, socket outlets and spur units shall, if nothing is specified, be metal clad type with steel
cover plates.
Light switches shall be 5 or 20 amp. According to the load switched and must be suitable for inductive loads up to
their ful current range.
Where nothing else is specified socket outlets shall be 13 amp. To comply with BS 1363.
Switches, socket outlets and spur units shall be of same manufacturer and shall match to each other throughout the
Electrical Works.
2.12.
Motors and Electrical Equipment
Precise positions of these and of associated control switches; shall be ascertained by the Contractor. The Contractor
shall carry out all conduct work, wiring and connections.
If nothing else is specified, isolators shall be supplied by the Contractor, but starters, control gear, etc shall be supplied
by others. All connections of starters, control gear, etc shall however if nothing else is specified be included in the
Electrical Works.
2.45
Specifications 47
The Contractor shall ensure the correct rotation and running of all motors and control circuits and the correct
functioning of all equipment. Conduit connections to motors and equipment shall be made by means of minimum
20 mm flexible waterproof conduit and the rigid conduit shall terminate in a n adequate box. The earth continuity
shall be maintained by means of an earth conductor run within the flexible conduit.
2.13
Light Fittings
Light fitting ate if nothing else is specified, to be supplied by the electrical Contactor. The Contractor hall include in
his tender for cleaning, installation, connection, replacement of breakages and supply of matching light sources in
accordance with the attached schedule of light fitting or as specified on the drawings and in the Particular
Specification.
Fluorescent fittings shall except where otherwise specified be phase compensated by means of a phase capacitor, on
LC- coupling.
Cast-in boxes shall be completely covered by fittings
All light fittings shall be cleaned and the installation be in complete working order before Handing Over.
2.46
Specifications 48
SECTION 13 – DRAINAGE
1.
Generally
The preambles for the previous trade sections are applicable to his section together with the following preambles. The
drainage is to be carried out in accordance with the directions of the Mechanical Engineer and the requirements of the
Bye-laws. No length of drain is t be covered until it has been tested and passed.
2.
P V C Drain Pipes
P V C drain pipes shall comply with ISQ R161 (4kg/cm) “pipes of Plastic Materials for the Transport of fluids”
The drain pipes shall be with spigot and socket glued joints.
3.
Cast Iron Drain Pipes
Shall be Centrifugal cast (spun) iron drain pipes with spigot and socket to BS 437 thoroughly coated inside and outside;
alternatively similar pipes but class “B” in accordance with BS 1211 may be used according to availability. Fittings
shall be in accordance with BS 1130.
Pipes shall be jointed with asbestos yarn and caulked with molten lead or jointed with special jointing compound all to
approval.
4.
Concrete Drain Pipes.
Pre-cast concrete pipes shall be in general conformity with BS 556; Concrete cylindrical Pipes and Fittings. The
concrete mix used for the manufacture of ordinary pipes shall not be weaker than Grade A.
For foul water drainage sulfate resisting concrete pipes shall always be used. The manufacturer of sulfate resisting pipes
shall be in general conformity with BS 556. The concrete is not weaker than “A”
Pipes up to and including 450mm diameter shall be un-reinforced and shall incorporate spigot and socket type joints.
Pipes above 450 mm diameter shall be reinforced with not less than steel fabric BS 110 or the equivalent in mild steel
and shall have spigot and socket joints or if the Engineer so approved shall have the concrete. In socketed pipes the
reinforcement shall be extended continuously from the pipe barrel into the socket, the longitudinal bars being cranked as
necessary.
No wall thickness of the pipe barrel is specified but the reinforcement (if any) and the wall thickness must be so
balanced that the pipes are in conformity with BS 556 and the test specified therein.
5. Pitch Impregnated Fiber Drain Pipes.
Pitch impregnated fiber drain pipes, couplings and fitting shall comply with BS 2760 part 1 and 2.
6. Manhole
Manholes shall be constructed on drain lines in the positions indicated or wherever ordered by the Engineer.
Manholes on pipe drains shall be constructed with an in-situ base in concrete class “C” which shall be raised to form
benching and invert of the manholes. The benching and channels shall be carefully formed to shape according to the
number, diameter and positions of the incoming and outgoing pipes. The channels in the manholes bases shall have
circular inverts. The benching shall be sloped towards the channels at a gradient of 1 in 6 or as otherwise detailed on the
drawings.
Benching shall be carried out in concrete class “C” and rendered with 15 mm 1:3 cement mortar. Rendering shall be
carried out in sulfate resisting cement for foul water drainage. The end of all pipes entering the manholes are to be
carefully cut to shape to suit the internal dimensions of the manholes are to be as short as possible and are to be
surrounded with 15 mm concrete up to the first pipe joint.
2.47
Specifications 49
The manhole shall be constructed in accordance with the drawings for typical and special manholes. Cast iron steps for
manholes shall comply with BS 1247. All steps to be hot dip galvanized after manufacture.
Manhole covers and frames shall be in accordance with the requirements of BS 497 and as specified on the drawings.
7.
Concrete Beds etc
Concrete beds shall be class “D” laid to correct falls, 300 mm wider than the external diameter of the pipe. Rates are to
include for laying in two parts, the first part being laid on the trench bottom 75 mm thick and allowed to set before pipe
laying is commenced. Individual pipes shall be firmly supported on pre-cast concrete blocks placed immediately behind
the socket and in such a manner that each pipe is accurately positioned in both line and level and the underside of the
barrel is at least 75 mm above the top of the concrete.
After the pipe joints have been made and the pipe lines satisfactorily tested, the first layer of the concrete bed shall be
thoroughly washed down and cleaned and the remainder of the bedding concrete (and the haunching or surrounding
concrete where required) shall be placed and consolidated under and around the pipe in such a manner as not to cause
any damage of disturbance to the pipe or joints.
The contractor is to ensure that his method of placing this second layer of concrete is such that the full length of each
pipe is fully supported. The overall depth of beds is to be in accordance with the table given on the drawings.
Where pipes are specified to be haunched, the bed shall be brought up with the second layer of concrete to a minimum
overall depth of 150 mm to the underside of the barrel of the pipe plus half of the diameter of the pipe and then sloped
up to the top of the barrel of the drain pipes. Where pipes are specified to the surrounded, the bed shall be brought up
with the second layer of concrete to a minimum overall depth of 150 mm to the underside of the barrel of the pipe and
then completely surrounded with concrete with 150 mm minimum cover all round. Rates of this item are to include for
any formwork required.
8. Trenches and Manhole Excavation and Backfilling
The bottom of the drain trenches are to be trimmed and consolidated to correct levels and gradients. If any trenches are
over-excavated the Contractor is to fill up to the proper depth at his own expense with concrete class “E” where
required. Rates for the drain trenches are to include for grading bottoms, any necessary planking and strutting and
keeping the excavations free from water, returning, filling in and ramming around over and disposing of surplus material
to spoil heaps on site. They shall also include for sieving and hand filling trenches where required for the first 300mm
over the drain pipes.
Backfilling shall be executed with selected materials in 150 mm layers (300 mm layers if a mechanical rammer is used)
each layer being well rammed and watered to obtain the maximum compaction. Care shall be taken to ensure that no
stone or other work is placed within 300 mm of such work.
Rates for manhole excavation shall include for leveling the bottoms. All surfaces materials including top soil which
differs in any nature whatsoever from the sub-strata, shall in every case be carefully set aside and stored separately from
other excavated materials. No claim for extra payment will be allowed for setting aside top soil for later use.
9. Pipe laying and Jointing Generally
All laying and jointing of pipes shall conform generally with C.P 301. Each cast iron or concrete pipe shall be tested for
soundness before laying by striking with a hammer and any pipes or joints which do not ring true or which show in any
other way any sign of being defective shall be rejected.
2.48
Specifications 50
Each pipe shall be laid accurately to line and gradient so that the finished pipeline shall be in a straight line both in
horizontal and vertical planes. The Contractor shall fix properly painted and secured positioned sight rails, the levels
and positioning of which shall be checked by the Engineer before the rails are used and as often as may be necessary.
There shall be not times less than three sight rails in position on each length of pipeline under construction to any other
gradient and the sight rails shall be situated vertically above the line of pipes or immediately adjacent thereto.
10. Joining P V C Drain Pipes
The type of joint used for P V C drain pipes is cemented spigot and socket. The jointing procedure is as follows: 1)
2)
3)
4)
5)
6)
7)
8)
The spigot and shall be chamfered
Clean spigot and socket will wet cloth and dry
Ungrease spigot and socket with acetone
Mark length of joint and spigot
Apply first a relatively thick layer of cement on to spigot and then a thin layer into socket
Push home the joint to the mark quickly and give at once a 90 degree twist
Remove pressed out cement
Do not disturb the joint for five minutes whilst cement is hardening.
The cement used shall be supplied by the factory, which is supplying the pipes.
11. Jointing Pre-cast Concrete Pipes
The Contractor shall adopt such measures as may be approved by the Engineer to ensure that every laid pipe is
concentrating with previously laid pipes with which it joints. Unless otherwise approved pipes shall be laid in an up
gradient direction and spigot shall be laid in the direction of the flow. Before commencing the laying operations, the
contractor shall ensure that the portions of pipe, which come into contact with jointing materials, are perfectly clean.
Cement mortar joints for concrete pipes with spigot and socket joints shall be made as follows:
1. Before commencing the jointing operation the socket of the previously placed pipe and the spigot for the new
pipe shall be clean and thoroughly soaked with water.
2. The spigot shall be wrapped one complete lap with tarred hemp spun yarn and the new pipe shall be carefully
drawn towards the previously laid pipe so that the spigot enters the full depth into the socket of the previously
laid pipe. The new pipe shall then be adjusted and fixed in its correct position in line, level and gradient and the
tarred yarn shall be caulked tightly home into the socket. On completion of this operation the yarn shall not fill
more than one quarter of the total depth of the socket.
3. The reminder of the socket shall be completely filled with cement mortar consisting of one part of cement
(“sulfate resisting cement for fouled water drainage) to three part of sand. The mortar filling shall terminate
flush with the socket and shall be neatly toweled to a smooth finish completely around the pipe.
4. To assist the curing of the mortar the Constructor shall cover the joints immediately after they are made with a
layer of hessian which shall be kept continuously wet during daylight hours and he shall further adopt such other
measures as the Engineer may direct all at the Contractor’s expenses.
12. Positioning of floor gullies etc
The Contactor shall before positioning floor gullies, duck-foot bends for ventilating stacks etc. consult the Engineer in
order to ensure the correct position of these. Failure to do so shall in no way relieve the Contractor from positioning
floor gullies, duck-foot bends for ventilating stacks, etc in positions the Engineer may later direct.
2.49
Specifications 51
13. Testing
After the drains are laid and jointed and before the trenches are filled in, they are to be tested in the presence of the
Engineer’s representative. The drains shall be tested in lengths between manholes or such shorter lengths as the
representative or the Engineer may approve.
Water shall be passed into the length under test until such time as all the air has been expelled and the line is full of
water and subjected to a head of 1500 mm at the upstream end. The test shall be considered to be satisfactory if there is
not visible leakage, seepage or weeping from any of the pipes or joints and if the head of water in a 76 mm diameter
upstand tube fitted at the upstream end does not fall at a rate faster than 12 mm per minute per 30 meters length. The
contractor shall make such time allowance as maybe necessary for the pipe to absorb water before being subjected to
test.
Manholes are to be tested for water-tightness in the same way as for drains by filling with water but not exceeding 1500
mm head.
The Contractor is to supply all testing apparatus and materials necessary for these tests and provide all labor and
assistance required. Any failure whatsoever in the drainage system to withstand the specified tests and any defects
appearing are to be made good and the drains re-tested to the satisfaction of the Engineer.
2.50
Specifications 52
SECTION 14 – EXTERNAL WORKS
The preambles for the previous trade section are applicable to this section together with the following preambles:
Earthworks
All excavations are to be carried out to lines and levels as shown on drawings or as directed by the Engineer.
Surplus materials shall be disposed of by the Contractor according to the Engineer’s instructions.
Top Soil
Top soil is defined as any layer of soil adjacent to the existing surface which contains or is discolored by roots, or other
organic matter which in the opinion of the Engineer will affect the stability of any superimposed construction.
Top soil shall be removed to a depth of 150mm or such depths as may be directed, within the limits of the pavements.
The Excavated top soil shall either be stacked for re-use in soiling areas outside the limit for pavements or shall be
removed and spread as directed by the Engineer.
Road and Parking Area
Sub-Grade
1. Description
This work shall consist of furnishing and placing approved granular sub-base material of the thickness and width and at the
locations shown on the plans or ordered by the Civil Engineer, in accordance with these specifications and in conformity
with the lines, grades and dimensions shown on the plans or as directed by the Engineer.
Unsuitable soils are not accepted in the upper 250 mm of the sub-grade whether cut or fill. These soils include soils with
CBR- Value below 7% (measured by 100% modified proctor, and after 24 hours soaking), and soils with content of big roots
or other vegetable matter and debris and other substances likely to hamper the compaction and stability of the sub-grade.
Soils on site will generally be accepted as materials for filling in the embankments. However, top soil, tree roots or other
soils containing vegetable matters will be rejected.
2.
Materials
The material shall consist of hard, durable particles of fragments of stone or gravel, screened or crushed to the required size
and grading. The material shall be free from vegetable matter and lumps or balls of clay and shall meet the requirements for
one of the grading given in the table below and whichever is called for in the bid schedule, as determined by AASHO T27.
Sieve Designation
Percentage by weight
Passing square mesh sieves
A
B
C
100
-
75
mm
37.5
mm
75-85
100
-
25
mm
-
-
100
4.75
mm
45-65
30-70
40-80
850
mm
15-40
-
-
75
mm
0-10
0-15
5-20
2.51
Specifications 53
NOTE
1) The percentage passing the 75 mm sieve shall not exceed ¼ of the percentage passing the 4.75 sieve.
2) That portion of the material passing a No. 40 sieve shall be non-plastic or shall have a liquid limit of not more
than 25 and plasticity index of not more than 6 as determined by AASHO T89 and T91 respectively.
3. Construction
3.1
Pits and Quarries
Pits and quarries shall be cleared and grubbed.
3.2
Placing
The sub-grade shall be shaped to the correct cambers gradient and levels as shown on the drawings for the full width
of the crown and shall be compacted to minimum 96% modified proctor to a depth of at least 300 mm or as
specified by the Engineer.
Compaction shall be carried out at Optimum Moisture Content, and the Contractor shall ensure, when water is added
to achieve this, that it shall be thoroughly mixed with the sub-grade material in the pre-scribed depth.
The sub-grade shall be constructed in such a manner and to such levels that no single points deviates more than 20
mm from the stipulated levels. The deviations must not be one side.
3.3
Measurement
The quantity to granular sub-base shall be measured either in square meters giving the thickness.
3.4
Payment
The quantities determined as provided above shall be paid for at the contract price per unit of measurement,
respectively for each of the particular pay items, which prices and payment shall be full compensation for
furnishing and placing the material and for all labor, equipment, tools and incidentals necessary to complete the
work prescribed in this section.
4.
Base
4.1
Description
This work shall consist of a course composed of gravel or crushed aggregate, placed and compacted on a prepared
roadbed in accordance with these specifications and in conformity with the lines, grades, thickness, and typical cross
section shown on the plans.
4.2
Materials
4.2.1
Gravel
Gravel shall consist of hard, durable particles or fragments of stones or gravel, and a filler of sand or other finely
divided mineral matter. Oversize material encountered in deposits from which gravel is produced shall be removed
by screening or shall be crushed to the required size, whichever the Contractor may select.
4.2.2
Crushed Aggregate
Crushed aggregate shall consist of hard, durable particles of fragments of stones or gravel crushed to the required
size, and a filler of sand or other finely divided mineral mater. When produced from gravel, not less then 50 percent
by weight of the coarse aggregate retained on the 4.76 mm size sieve shall be particles having at least one fractured
face and if necessary to meet this requirement or to eliminate any excessive filler, the gravel shall be screened before
crushing.
2.52
Specifications 54
5.
General Requirements for Gravel and Crushed Aggregate.
In addition to the requirements in section 4.2, gravel and crushed aggregate shall be uniformly graded from coarse to
fine and shall conform to the requirements given in the table below for grading.
The portion of the material retained on a 4.76 mm sieve shall be known as coarse aggregate, and that portion passing
a 4.76 mm sieve shall be known as fine aggregate. The material shall be free from vegetable matter and clay balls.
Coarse aggregate shall have a percentage of wear of not more than 50 at 500 revolutions as determined by
AASHO T 96.
For all grading, that portion passing a 0.420 mm sieve, including filler, shall be non plastic or shall have a liquid
limit of not more than 25 and a plasticity index of not more than 6 as determined by AASHO T 89 and T 90
respectively.
5.2 Grading requirements for aggregate.
Percentage by weight passing Square mesh sieve AASHO T 11 and 27
Sieve
Designation
75
63
50
37.5
25
19
12.5
9.5
4.75
2.36
2.00
425
75
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
A
100
70-100
60-80
50-70
40-60
25-45
15-35
5-25
0-15
0-10
B
Percentage By Weight
Passing Square Mesh Sieve
C
D
E
F
G
100
80-100
68-88
53-73
35-55
29-49
17-37
8-28
0-18
0-13
100
80-100
60-80
50-70
30-50
20-45
10-30
5-20
0-10
100
65-95
55-85
35-65
20-50
0-15
0-20
100
75-100
45-75
25-55
5-35
100
70-100
60-80
50-70
40-60
25-45
15-35
1-20
0-15
100
70-90
60-80
45-75
30-60
15-40
0-30
0-20
0-15
Columns, A, B, C, are for Base Course
Columns, AD, E, F & G are for Surface Course
Columns, E & G are for Bituminous Road Surface Course.
5.3
Blending Materials
In fine aggregate or filler in addition to that naturally present in the base course material is necessary in order to meet
the grading requirements, or for satisfactory bonding of the material, it shall be uniformly blended with the base
course material at the screening and crushing plant or on the road. The material for such purpose shall be obtained
from sources approved by the Engineer and shall be free from hard lumps.
5.3
Calcium Chloride
Calcium chloride shall conform to the requirements of AASHO M 144.
2.53
Specifications 55
6.
Placing
The base shall be placed on the prepared surface and compacted in layers not exceeding 150mm or as approved by the
Engineer. When more than one layer is required, each layer shall be shaped and compacted before the succeeding
layer is placed.
The placing of material shall not begin until the surface on which it is to be placed has been approved by the Engineer.
Placing shall be from spreader boxes or from vehicles especially equipped to distribute the material in a uniform layer or
window. The layer or window shall be of such size that when spread and compacted, making due allowance for any
blending material that is to be added on the road, the layer shall have the required thickness.
When hauling is done over previously placed material, hauling equipment shall be routed as uniformly as possible over
the entire area of previously constructed layer.
6.1
Adding Blending Material
When additional fine aggregate or filler is required and it is to be blended with the material on the road, the blending
material shall be uniformly placed with spreader boxes or other approved devices.
6.2
Mixing and Spreading
After each layer of base course material has been placed, and blending material added when required, it shall be
thoroughly mixed to its full depth by means of power graders, traveling mixers, or other mixing equipment. During the
mixing, water shall be added in the amount necessary to provide the optimum moisture content for compacting as
specified in section below. When uniformly mixed, the mixture shall be spread smoothly to a uniform thickness or in
case of the top layer, to the cross section shown on the plans.
The contractor shall so schedule his operations as to assure completion of compaction within 48 hours after mixing and
spreading.
6.3
Compacting
Immediately following final spreading and smoothing, each layer shall be compacted to the full width. Rolling shall
progress gradually from the side to the center parallel with the centerline of the road, and shall continue until the entire
surface has been rolled. Any irregularities or depressions that develop shall be corrected by loosening the material at
these places and adding or removing material until the surface is smooth and uniform. Along curbs, headers, and wall
and at all places not accessible to the compactor, the base material shall be tamped thoroughly with mechanical tampers.
The material shall be both bladed and rolled until a smooth even surface has been obtained.
During the progress of the work, the engineer will make density tests in accordance with AASHO T 191, modified to
include only materials passing a 19.0mm sieve, and if he finds the density, is less than 100 percent of the maximum
density as determined by AASHO T99. Method C, the Contractor shall perform additional rolling or tamping as may be
necessary to obtain that density. Other types of field density tests may be used for control purposes after density values
corresponding to those obtained by AASHO T 191 have been established.
6.4
Thickness Requirements
The cutting of test holes and refilling with material properly compacted shall be done by the Contractor under the
supervision of the Engineer.
6.5
Surface Requirements
When tested by a crown template, conforming to the typical cross section shown on the plans, and an ammeter
straightedge applied at right angles and parallel respectively to the centerline of the roadbed, the variation of the surface
from each testing edge between any two contacts with the surface shall at no point exceed 1.0 cm for the crown template
and 1.0 cm for the straightedge.
2.54
Specifications 56
If the contractor elects to produce and stockpile aggregates prior to placement on the roadbed, the aggregates shall be
stockpiled to the satisfaction of the Engineer.
7.
Measurement
7.1
Square Meter Basis
The area of aggregate base course complete in place, compacted to the depth and width as shown on the plans
satisfactory to the engineer shall be measured by station length along the center line of the roadway for the length and
the measured widths as shown on the plans.
7.2
Cubic Meter Basis
The quantity of aggregate base course shall be the number of cubic meters acceptable and laid and compacted as
measured by cross section or by nominal cross section area times the station length.
7.3
Metric tons
The weight of aggregate base course shall be determined by weighing boarded truck on approved scales minus the tare
weight of the truck.
7.4
Payments
The quantities, determined as provided above, shall be paid for and which payment shall be full compensation for
furnishing and placing all materials, including all labour, equipment, tools and incidentals necessary to complete the
work prescribed in this section.
2.55
Specifications 57
SECTION 15 – Surfacing and pavement
Aggregate surfacing
15.1
Description
This work shall consist of a course composed of gravel or crushed aggregate, whichever is called for in the bid
schedule, constructed on a prepared roadbed in accordance with these specifications and in conformity with the lines,
grades, and typical cross sections on the plans.
15.2
Materials
Materials shall conform to the requirements of Section 14, except as to grading and plasticity of aggregate.
Gravel and crushed aggregate shall meet the requirements given in the table below for the grading .
For all grading, that portion passing C 420 mm sieve, including blending filler, shall have a liquid limit of not more than
35 and a plasticity index of not less than 4 nor more than 9 as determined by AASHO T89 and T90 respectively.
15.3
Construction
Methods shall conform to all the requirements for construction methods under Section 14.
Grading Requirements for Aggregate Surfacing
Percentage by Weight Passing Square
Mesh sieve AASHTO T11 and T 27 for Grading
Sieve
designation
37.5
25
19
12.5
9.5
4.75
2.00
425
75
mm
mm
mm
mm
mm
mm
mm
mm
mm
A
B
C
D
E
100
40-75
30-60
5-12
100
40-75
25-60
5-12
100
45-80
25-60
5-12
100
26-60
5-12
100
85-100
65-100
55-85
40-70
25-45
5-12
15.4
Measurement
The quantity of aggregate surfacing to be paid for shall be the number of cubic meters measured in the vehicles, or the
number of metric tons as determined by weighing loaded trucks on approved scales minus the tare weight of the truck,
whichever is called for in the Bills ;of Quantities.
15.5
Payment
The quantities, determined as provided above, shall be paid for at the contract price unit of measurement, respectively,
for each of the particular pay items listed below that is shown in the bills of Quantities, which prices and payment shall
be full compensation for furnishing and placing all materials, including the labour, equipment, tools, and incidentals
necessary to complete the work prescribed in this section.
15.6
Bituminous Prime Coat
15.6.1
Description
This work shall consist of furnishing and applying bituminous material to a previously prepared roadbed in accordance
with these specifications and to the width shown on the typical cross section on the plans.
2.56
Specifications 58
15.6.2 Materials
15.6.2.1
Blotter Materials
Blotter material shall be clean, graded sand or when called for in the Special Conditions, it shall be a suitable material
furnished under another contract item.
15.6.2.2
Bituminous Materials
Bituminous materials shall be of the type and grade that shall conform to the requirements of the specifications listed
below or as directed by the Engineer.
Slow-curing liquid bituminous material
Medium-curing cutback bitumen
Rapid-curing cutback bitumen
- AASHO MM 141
- AASHO M 82
- AASHO M81
Grades (with temperatures of application in degrees C) shall be as follows:
Slow-curing liquid bituminous material
Medium-curing cutback bitumen
Rapid-curing cutback bitumen
15.7
sc-1 (450-850), SC- 2(600-1000)
- MC-0 (200-600), MC-1 (45-85)
- MC-2 (600-1000), Mc-3 (800-1200)
- RC-2 (600-1000)
Construction
15.7.1 Weather Limitations
Prime coat shall be applied only when the surface to be treated is dry or slightly damp, when the atmospheric
temperature in the shade is above 130C and rising or above 150C, if falling, and when the weather is suitable.
15.7.2 Equipment
The equipment used by the contractor shall include a roller, a power broom and/or a power blower, a self-powered
pressure bituminous material distributor (sprayer) and equipment for heating bituminous material.
The distributor shall have pneumatic tires of such width and number that the load produced on the road surface shall not
exceed 108 kg per cm of tire width, and shall be so designed, equipped, maintained and operated that bituminous
material at even heat may be applied uniformly on variable widths of surface up to 4.6 meters at readily determined and
controlled rates from 0.17 to 7.04 liters per square meter as determined by the Engineer, with uniform pressure, and
with an allowable variation from any specified rate not to exceed 0.07 liter per square meter. Distributor equipment
shall include a tachometer, pressure gauges accurate volume measuring devices or calibrated tank, and a thermometer
for measuring temperatures of tank contents.
Distributors shall be equipped with a separate power unit for the pump, and full circulations spray bars, which shall be
adjustable laterally and vertically. The spray bars on the distributor shall be controlled by a bootman riding on the rear
of the distributor in such position that operation of all sprays are in his full view. The Engineer shall require a test to
ensure even distribution over the length of the spray bar and that application is at the required rate.
15.7.3 Cleaning Surface
Immediately before applying the bituminous material all loose dirt and other objectionable material shall be removed
from the surface with a power broom and/or blower as required. If the engineer so orders, the surface shall be lightly
bladed and rolled immediately prior to the application of bituminous material, in which case brooming or blowing will
not be required. When so ordered by the engineer a light application of water shall be made just before the application of
bituminous material.
2.57
Specifications 59
15.7.4 Application of Bituminous Material
Bituminous material shall be applied by means of a distributor at the rate directed by the Engineer. Which will usually
be from 1.00 to 1.20 liters per square meter, and at a temperature within the range described before for the particular
material being used. Any prescribed application shall be divided into two applications when necessary to prevent
flowing off the surface and additional bituminous material shall be applied where surface conditions indicate it to be
necessary, if the Engineer so directs.
When necessary to provide for traffic, the prime coat shall be applied in lanes of approximately one-half the width of the
completed surface, unless the extreme width of the surface makes such application impracticable, in which case the
prime coat shall be applied in more than two lanes as required. When applied in two or more lanes, there shall be a
slight over lap of bituminous material along the adjoining edges of lanes.
The surface of structures and trees adjacent to the areas being treated shall be protected in such manner as to prevent
their being spattered or marred. No bituminous material shall be discharged into a borrow pit or gutter.
15.7.5 Maintenance and Opening to Traffic
Traffic shall not be permitted on the primed surface until the bituminous material has penetrated and dried and in the
opinion of the Engineer, will not pick up under traffic, provided that if it becomes necessary to permit traffic prior to that
time but in no case sooner than four hours after the application of the bituminous material, blotter material shall be
applied as directed by the Engineer and traffic shall be permitted to use the lanes so treated. Blotter material shall be
spread from trucks in such a manner that no wheel will travel in uncovered wet bituminous material. When applying
blotter material to a treated lane that adjoins a lane yet to be treated, a strip at least 20 cm wide along the adjoining
edge shall be left uncovered, or if covered shall be uncovered when the second lane is being prepared for treatment, in
order to permit an overlap of bituminous material as required.
15.8
Bituminous Surface Treatment
15.8.1 Description
This work shall consist of one or more applications of bituminous material and spreading of aggregate, constructed on a
previously prepared surface in accordance with these specifications and to the width shown on the typical cross section
on the plans.
15.8.2 Quantity of Materials per Square Meter
The approximate quantities of materials per square meter and the sequence of applications and spreading shall meet the
requirements gibes in Table 3.5-1 below for the treatment designation called for in the bid schedule:
Specifications 60
Table 3.5-1: Quantities of materials per square meter.
Treatment Designation
Aggregate Grading And
Sequence Of Operations
Apply Bituminous Material In
Liters
Spread Aggregate – Kg
Grading F
Grading E
Grading D
Grading C
Grading B
Grading A
Totals
Bituminous Material – liters
Aggregate - kg
1
Single
2
Double
3
Double
4
Triple
5
Double
6
Quadruple
1.14
0.85
0.95
0.57
1.14
0.76
0.50
0.95
1.14
0.57
1.33
1.52
0.76
4.5
11.3
6.8
3.6
5.4
11.3
3.6
5.4
9.1
15.9
9.1
18.1
22.7
31.8
1.14
11.3
1.35
15.8
1.90
22.7
2.28
27.1
2.47
31.8
3.8
49.9
The weights given above are those of aggregate having a bulk specific gravity of 2.65, as determined by AASHO T
85. Proportionate corrections shall be made when the aggregate furnished on the job has a bulk specific gravity above
2.75 or below 2.55. In such case the corrected amount shall be the product of the number of Kg shown in the table
multiplied by the ratio of the bulk specific gravity for the aggregate to 2.65.
The amounts given in Table 3.5-1 are approximate and the exact amounts shall be set by the Engineer for each
application and spreading. Total amounts of bituminous material per square meter may be varied by the Engineer as
necessary to fit conditions, but the total amount of aggregate per square meter, after adjustment for specific gravity,
shall not be changed, except the Engineer may order that a portion of it be placed in stockpiles and, similarly, he may
order some of the apportionment for stockpiling used in the surface treatment.
15.8.3 Materials
15.8.3.1
Aggregate
Aggregate for the several designations of surface treatments shall be crushed stone and shall meet the requirements for
grading given in table 3.5-2.
Table 3.5-2: Requirements For Grading Of Aggregate For Bituminous Surface Treatments
Sieve Designation
37.5
mm
25.0
mm
19.0
mm
12.5
mm
9.5
mm
4.75
mm
2.36
mm
150
mm
A
B
100
90-100
20-55
0-10
0-15
0-5
100
90-100
20-55
0-15
0-5
Percentage by weight passing
C
D
100
90-100
40-70
0-15
0-5
Specifications 61
100
85-100
10-30
0-10
E
F
100
85-100
10-40
100
85-100
60-100
0-10
Aggregate shall be free from clay balls and adherent films of clay or other matter that would prevent thorough coating
with bituminous material.
It shall be of such nature that after being coated thoroughly with bituminous material of the type to be used in the work,
over 95 per cent of the bituminous material will be retained; after being subjected to a stripping test in accordance with
AASHO T 182. This stripping test requirement may be waived if the material has a record of satisfactory performance.
The material shall have a swell of not more than 1.5 per cent as determined by method A of AASHO T 101.
15.8.3.2 Bituminous Material
Bituminous materials shall be of the type and grade called for in the bid schedule and shall conform to the requirement
of the specifications and reference listed below. When more than one grade is shown in the bid schedule, the grade shall
be that directed by the Engineer.
Medium-curing cutback bitumen AASHO M81
Rapid-curing cutback bitumen
AASHO M140
Grades (with temperature of application in degree C), shall be as follows:
Medium-curing cutback bitumen
Bituminous cement – penetration
MC-4 (900-1300), MC-5 (1050-1400)
120-150
(1400-1750)
200-300
(1250-1600)
15.8.4 Construction
15.8.4.1
Weather Limitations
Surface treatments shall be applied only when the existing surface is dry or slightly damp, when the atmospheric
temperature in the shade is above 150c and when the weather is suitable.
15.8.4.2
Equipment
The equipment used by the Contractor shall include a power broom and/or a power blower, dragging equipment, a
pneumatic tired roller, aggregate spreading equipment that con be so adjusted as to spread accurately the given amounts
per square meter, a distributor, and equipment for heating bituminous material. For treatment designations 1, 2, 3, 4, 5
and 6 the equipment shall also include a pneumatic-tyred motor grader.
The pressure distributor shall conform to the requirements of chapter 3.4 of this section.
Pneumatic tired rollers shall have a total compacting width of not less than 1.5 m and the gross weight shall be
adjustable within the range of 36 to 63 kilograms per cm of compacting width. The operating weight shall be as directed
by the engineer.
Other equipment of proven performance may be used by the contractor in addition to or in lieu of the specified
equipment when approved by the Engineer.
15.8.4.3
Reconditioning of roadbed
Surface treatment shall not commence until the surface receiving the treatment has been approved by the Engineer.
2.60
Specifications 62
15.8.4.4
Sequence of Operations
Bituminous surface treatment shall be applied using quantities and sequence of operations as outlined above. Each
spreading of aggregate shall immediately follow application of bituminous material, except where the first spreading
equipment to be placed directly on the previously bituminized surface.
In the case of designation No. 6 surface treatment, an interval of at least 24 hours shall elapse between application of the
third layer and that of the fourth, during which period the surface shall be opened to traffic and maintained by the
Contractor by brooming and rolling.
15.8.4.5
Cleaning Existing Surface
Prior to placing the first layer of surface treatment, loose dirt and other objectionable material shall be removed from the
existing surface. If so directed by the engineer the surface shall be cleaned with a power broom or power blower.
15.8.4.6
Application of Bituminous Material
Bituminous material shall be so applied that uniform distribution is obtained at all points. Building paper shall be spread
on the surface for a sufficient distance back from the beginning and end of each application so that flow through the
nozzles may be started and stopped on the paper and so that all nozzles will operate properly on the entire surface being
treated. Building paper so used shall be removed and disposed of in a manner satisfactory to the Engineer. Application
temperature shall be within the range called for in this Section for the particular bituminous material being used. During
all applications the surfaces of adjacent structures and trees shall be protected in such manner as to prevent their being
spattered or marred. No bituminous material shall be discharged into a borrow pit or gutter.
15.8.4.7
Spreading and shaping Aggregate
Initial spreading of each layer of aggregate for all designations of surface treatment shall be done with the aggregate
spreading equipment specified.
Before the bituminous material is applied, sufficient seal aggregate to cover the distributor load of bitumen shall be in
truck on the roadway at the site of the work.
Trucks spreading aggregate shall be operated backward so that bituminous material will be covered before truck wheels
pass over it. Supplemental spreading and smoothing of the first layer of designations 4, 5 and 6 shall be done with thee
motor grader or approved drag specified. All other supplemental spreading and smoothing shall be done with a broom
drag and by hand methods where necessary.
15.8.4.8
Brooming and Rolling
Following spreading and smoothing, each layer of aggregate shall be rolled as directed. Except where a motor grader or
approved drag is used for supplemental shaping and smoothing, broom dragging shall accompany rolling. The final
layer of treatment in all cases shall be alternately broom dragged and rolled thoroughly until the surface is fully
compacted and bonded to full width. The Contractor shall not allow traffic over complete surface treatments for
the first 24 hours after aggregate is applied unless permitted by the Engineer.
Specifications 63
SECTION 16 – MISCELLANEOUS
1. Precast Concrete flags
The precast concrete flags shall conform in all respect to BS 368
2. Precast Concrete kerbs, channels and Edgings
The precast concrete kerbs etc, shall conform in all respects to BS 340
3.
Demolition’s
These works must be carried out at times arranged and convenient to the Employer or as described elsewhere in these tender
documents.
The contractor will be held fully responsible for any unnecessary damages caused to furniture, equipment in consequence of
these works. He shall reinstate all damages at his own expense and indemnify the employer against any loss whatsoever
arising therefrom.
The Contractor must give the necessary notices and must exercise all due care in the demolition. During the demolition
works the Contractor shall keep the debris constantly watered to minimize the dust arising and this must be included in his
prices.
Unless otherwise stated all re-usable and approved materials arising from demolitions shall become the property of the
Employer and the Contractor shall dismantle such materials carefully and stack them in piles ready for inspection by the
Architect. Debris and disqualified materials shall be removed from site.
2.63
Specifications 64
BILL NO. ONE (1)
PRELIMINARIES
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BILL NO. 1
PRELIMINARIES
PART ONE (1) - PARTICULAR PRELIMINARIES
Description
A
Shs.
THE PROJECT TEAM
The “Employer”
County Secretary
Meru County
P. O. Box 120 - 60200
MERU
The “Architect” and Lead Consultants
K&M Archplans
P. O. Box 76240- 00508
Tel. 020 - 2723298
Fax. 020 - 2718159
NAIROBI
The "Quantity Surveyor"
Constingconsult Ltd
P. O. Box 51509 - 00200
Tel. 020 - 3860640
Wireless 020 -2650954 Cell: 0728-891924
NAIROBI
The "Civil / Structural Engineer"
Xenocon Consulting Engineers
P. O. Box 59385 - 00200
Tel. 020 - 4444837
Fax: 020 - 4443828
NAIROBI
The "Electrical Engineer"
Mecoy Associates Ltd
P. O. Box 53086 - 00200
Tel. 020 - 2723754
Fax: 020 - 2727555
NAIROBI
The "Mechanical Engineer"
Mecoy Associates Ltd
P. O. Box 53086 - 00200
Tel. 020 - 2723754
Fax: 020 - 2727555
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Preliminaries
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Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
PRICING ITEMS OF PRELIMINARIES
Prices shall be inserted against items of preliminaries in the tenderer's priced
Bills of Quantities.
Please note that failure to price any item of general particular preliminaries will be
construed to mean that the tenderer wishes to provide for that item free of charge.
The rates shall be deemed to include for all costs involved in complying with all the
requirements for the proper execution of the whole of the works in the Contract.
B
VALUE ADDED TAX, DUTIES AND LEVIES
The Contractor’s attention is drawn to the V.A.T. Public Notice No. 6 of 5th August
1993 regarding the Finance Bill (1993) (and any subsequent amendments to-date)
which requires the Contractor to pay Value Added Tax (V.A.T.) for all Contracts
entered into after 1st September 1993. All tender rates shall be inclusive of VAT,
all other taxes, levies and duties in force at the time of tender.
Please note that from every interim and final payment, VAT shall be deducted and
paid directly to the Commissioner of Value Added Tax (V.A.T)
C
SCOPE OF CONTRACT
The Contract shall comprise the construction and completion of an Executive
Governor's Mansion including related facilities as well as Services Engineering
installations and Specialist installations as follows:
(a) General builders works - New works
(b) External and Civil works
(c) Building services installations shall include:
- Electrical light and power installations
- Voice and Data installations
- Plumbing, drainage and fire fighting installations
- Air conditioning and Mechanical Ventilation installations
- Sanitary appliances supply and installation
D
PAYMENTS
There shall be NO Advance payments in this Contract. However the Client may
allow advance payment upon the Contractor's request and provision of an
approved bank guarantee and other conditions.
E
MATERIALS FROM DEMOLITIONS
Any materials arising from demolitions and not re-used shall become the property
of the County Government.
F
LOCATION OF SITE
The site for the works is on a piece of land next to Alba Hotel within the Meru
town. Access to the site is from the Meru - Nanyuki Road within Meru.
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A
DESCRIPTION OF THE WORKS
The works in this Contract shall comprise the construction and completion of an
Executive residential house as described below:
a) Main House approximately 1265 Square Metres total plinth in three floors ground floor (458 Sm), first floor (411 Sm) and attic floor (396 Sm)
b) Detached domestic servant quarters on one floor approximately 100 square
metres floor area
b) Related electrical and mechanical installations.
c) Related external and civil works which include water and power reticulation,
storm and water drainage, gazebo, swimming pool and changing rooms, access
road, driveways and parking, elaborate landscaping and boundary walling with two
gates and gate houses.
B
EXISTING PROPERTY AND SERVICES
The Contractor shall take every precaution to avoid damage to all existing property
including roads, cables, drains and other services and he will be held responsible
for all damage arising from the execution of this Contract to the aforementioned,
and he shall make good all such damage where directed at his own expense to the
satisfaction of the Project Architect
C
CONTRACT COMPLETION PERIOD
The contract completion period shall be as stated in the Appendix to Conditions of
Contract and must be strictly adhered to.
The Project Architect shall strictly monitor the Contractor's progress in relation to
the progress chart and should it be found necessary, the Project Architect shall
inform the Contractor in writing that his actual performance on site is not
satisfactory.
The Contractor is required to bid for the completion period and should enter the
completion period on the form of Tender and all other provided spaces.
D
SIGNBOARD
The Contractor must allow for providing, erecting and maintaining a site signboard,
the size, type of construction and lettering of which shall be to the Project
Architect's design. The names of the Consultants are to be in lettering 50mm high.
The board is to be fixed in an elevated position on the site where indicated by the
Project Architect. On completion of the works, the notice board shall be removed
and making good shall be carried out as necessary.
E
LABOUR CAMPS
No labour with the exception of a watchman may be housed on the site. The cost
of transporting labour to and from the site or elsewhere will be deemed to included
in the tender.
F
PARTICULAR INSERTIONS TO BE MADE ON APPENDIX TO CONDITIONS OF
CONTRACT
For particular insertions see Appendix to Conditions of Contract section ACC
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Quantity Surveyors
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PART TWO (2) - GENERAL PRELIMINARIES
A
DEFINITIONS AND ABBREVIATIONS
Abbreviations used in these Bills of Quantities shall be interpreted as follows:a “Approved”: Shall mean approved by the Project Architect.
b “As directed”: Shall mean as directed by the Project Architect.
c “B.S.”: Shall mean
the Current British Standard specifications published by the British
Standards institution, 2 Park Street, London W. I, England.
d “Kg.”: Shall mean Kilograms
e “No.”: Shall mean Number
f “MM”: Shall mean Millimetres
g “LM.”: Shall mean Linear Metres
h “SM.”: Shall mean Square Metres
I “C.M.”: Shall mean Cubic Metres
j “M.S.” or "m/s": Shall mean Measured separately
k “Prs": Shall mean Pairs
l Words denoting the "Male" shall be deemed to represent the "Female" and vice
versa.
m “Ditto”: Shall mean
the whole of the preceding description except as qualified in the section in
which it occurs. Where it occurs in brackets it shall mean the whole of the
preceding description which is contained in the appropriate brackets.
n The term "Employer" or "Client" wherever used in this contract shall be
synonymous.
B
DISCLAIMER
The information in part one above is given as a guide only. Tenderers are
expected to verify all information given above from the drawings, specifications
and bills of quantities. The Client or his agents will not be held liable for any losses
or inaccuracies arising from the use of the said information
C
ACCESS TO SITE
Access to site is through the main entrance after Nakumatt supermarket off Meru Nanyuki Road and the Contractor shall provide alternative temporary access to the
site as necessary where shown by the Employer. The Contractor must allow here
for all costs incurred in providing and maintaining the access to the site.
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A
VISIT THE SITE
The Contractor is advised to visit the site and will be deemed to have satisfied
himself with regard to the conditions of the site, the nature of the materials to be
excavated and conditions under which the works will have to be carried out, the
supply of and conditions affecting labour and the facilities for obtaining the articles
or materials referred to in these Bills of Quantities. No claim by the Contractor for
additional payment will be allowed on the ground of any misunderstanding or
misapprehension in respect of any such matter or otherwise. Any damage cause to
existing accesses and roads must be made good as directed by and to the
approval of the Project Architect.
B
DRAWINGS
The Contractor will be deemed to have examined the drawings before tendering
and to have satisfied himself regarding their details and regarding the nature and
extent of the works and the method of construction involved. No claims arising out
of misapprehension in these respects will be allowed. Drawings may be seen by
appointment at the offices of the Architect during normal working hours. The works
are to be executed in accordance with the drawings referred to in the Appendix to
these Bills of Quantities together with any drawings which may be supplied in
amplification or amendment thereof.
C
FORM OF CONTRACT
The Form of Contract and Agreement used is the STANDARD CONDITIONS
CONTRACT FORMING PART OF STANDARD TENDER DOCUMENTS FOR
PROCUREMENT OF WORKS (SMALL WORKS) issued by PUBLIC
PROCUREMENT AUTHORITY (PPOA) Some amendments have been made to
the Standard Contract to suit the requirements of the project. In particular, two
clauses dealing with nominated sub-contractors and suppliers have been
introduced.
Reference to Contract clauses appearing hereunder, is to the PPOA Standard of
Tender Documents. Any deviations, deletions or additions appearing herein
having been made to suit the specifics of the project should override any contract
provisions in the Standard Public Procurement Contract.
D
CLAUSES OF THE CONDITIONS OF CONTRACT
The Contractor’s attention is drawn to the clauses of the Conditions of Contract
and deletions, additions and modifications thereto which shall be read as
incorporated herein and he shall allow any sums which he considers necessary for
the observance of such conditions. (the full contract clauses are contained
elsewhere in this document)
1 Clause 1
Definitions
2 Clause 2
Interpretations
3 Clause 3
Language and law
4 Clause 4
Project Manager's/Architect's Decisions
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5 Clause 5
Delegation
6 Clause 6
Communication
7 Clause 7
Sub-Contracting
8 Clause 8
Other Contractors
9 Clause 9
Personnel
10 Clause 10
Works
11 Clause 11
Safety and Temporary Works
12 Clause 12
Discoveries
13 Clause 13
Work Program
14 Clause 14
Possession of site
15 Clause 15
Access to site
16 Clause 16
Date instructions
17 Clause 17
Extension or Acceleration of completion Date
18 Clause 18
Management meetings
19 Clause 19
Early warning
20 Clause 20
Defects
21 Clause 21
Bills of Quantities
22 Clause 22
Variations
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Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
23
Clause 23
Payment certificate, currency of payment and advance payment. No
advance payment shall be made. Subclause 23.7(b) and ( c) is deleted.
No payment in foreign currency
24
Clause 24
Compensation Events
25
Clause 25
Price adjustment
26
Clause 26
Retention
27
Clause 27
Liquidated damages
28
Clause 28
Securities
29
Clause 29
Dayworks
30
Clause 30
Liability and Insurance
31
Clause 31
Completion and taking over
32
Clause 32
Final Account
33
Clause 33
Termination
34
Clause 34
Payment upon Termination
35
Clause 35
Release from perfomance
36
Clause 36
Corrupt Gifts and Commission
37
Clause 38
Settlement of Disputes
The County Secretary
Meru County
P. O. Box 120 - 60200
MERU
The name of the Contract is THE PROPOSED GOVERNOR'S MANSION FOR
THE MERU COUNTY IN MERU TOWN
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The start date shall be AS STATED IN THE LETTER OF ACCEPTANCE
The Intended Completion Date for the whole of the Works shall be AS STATED IN
THE APPENDIX TO CONDITIONS OF CONTRACT
The following documents also form part of the Contract: PROGRAMME OF
WORKS SUBMITTED BY THE CONTRACTOR AND APPROVED BY THE
PROJECT ARCHITECT
The Contractor shall submit a program for the Works within 14 DAYS of delivery of
the Letter of Acceptance.
The Site Possession Date shall be
ACCEPTANCE
AS STATED IN THE LETTER OF
The Defects Liability period is 180 DAYS AFTER DATE OF PRACTICAL
COMPLETION days.
The minimum insurance covers shall be;
1
The minimum cover for insurance of the Works and of Plant and Materials in
respect of the Contractor’s faulty design is 20% OF CONTRACT SUM
2
The minimum cover for loss or damage to Equipment is KSHS. 10% OF
CONTRACT SUM
3
The minimum cover for insurance of other property is KSHS. 10% OF CONTRACT
SUM
4
The minimum cover for personal injury or death insurance for the Contractor's
employees is 10% OF CONTRACT SUM
And for other people is 5% OF CONTRACT SUM
The following events shall also be Compensation Events: NON OTHER THAN AS
DEFINED IN THESE CONDITIONS OF CONTRACT
The period between Program updates is 14 DAYS.
The amount to be withheld for late submission of an updated Program is ANY
FULL CERTIFICATE DUE
The proportion of payments retained is 10% OF CERTIFIED AMOUNT.
The Price Adjustment Clause SHALL NOT APPLY. THIS IS A FIXED PRICE
CONTRACT
The liquidated damages for the whole of the Works is KSHS. 100,000/- (per week
or part thereof)
The Performance Security shall be for the following minimum amounts equivalent
as a percentage of the Contract Price 10 PERCENT (%)
The Completion Period for the Works is AS INSERTED IN THE FORM OF
TENDER BY THE TENDERER
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The rate of exchange for calculation of foreign currency payments is NOT
APPLICABLE
The standards of workmanship and materials used are expected to be of the
highest levels achievable to be commensurate with the best standards in the
building industry in Kenya.
The Employer shall have the right under this contract to hire others to carry out
work falling under the contract if the contract fails to achieve the required
standards of materials and workmanship.
A
SUFFICIENCY OF TENDER
The Contractor shall be deemed to have satisfied himself before tendering to the
correctness and sufficiency of his Tender for the works and of rates and prices
stated in the priced Bills of Quantities, which rates and prices shall cover all his
obligations under the Contract and all matters and means necessary for the proper
completion and maintenance of the Works. The rates and prices shall not be
changed whatsoever after tender opening.
B
PERFORMANCE BOND
The Contractor shall find and submit on the Form of Tender Bond an approved
bank and who will be willing to be bound by the County Secretary, Meru County in
and amount equal to Ten per cent (10%) of the contract amount for the due
performances of the Contract up to the date of completion as certified by the
Project Architect and who will when and if called upon, sign a Bond to that effect
on the relevant standard form included herein. (without the addition of any
limitations) on the same day as the Contract Agreement is signed, by the Meru
County. The Contractor shall furnish within seven days another Surety to the
approval of the said County Secretary.
C
PROVISIONAL WORK
All work described as "Provisional" in these Bills of Quantities is subject to
remeasurement in order to ascertain the actual quantity executed for which
payment will be made. All "Provisional" and other work liable to adjustment under
this Contract shall be left uncovered for a reasonable time to allow all
measurements needed for such adjustment to be taken by the Quantity Surveyor.
Immediately the work is ready for measuring, the Contractor shall give notice to
the Quantity Surveyor. If the Contractor makes default in these respects he shall if
the Project Architect so directs uncover the work to enable all measurements to be
taken and afterwards reinstate at his own expense.
D
ALTERATIONS TO BILLS, PRICING, ETC
Any unauthorised alteration or qualification made to the text of the Bills of
Quantities may cause the Tender to be disqualified and will in any case be
ignored. The Contractor shall be deemed to have made allowance in his prices
generally to cover any items against which no price has been inserted in the priced
Bills of Quantities. All items of measured work shall be priced in detail and the
Tenders containing Lump Sums to cover trades or groups of work must be broken
down to show the price of each item before they will be accepted.
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A
MATERIALS AND WORKMANSHIP
The works are to be carried out with new materials of the best quality as specified
and all work carried out in workmanlike manner.
When substitution of materials is permitted the substitutes shall not be of inferior
quality to those originally specified. All materials shall be in accordance with British
Standard Specifications latest Edition (B.S) when such exist except where
acceptable Local Standard is available. All materials shall be obtainable from
approved manufacturers and used in accordance with their instructions.
Samples of materials and manufactured articles shall be submitted to the Architect
and approved before commencement or use thereof.
The Contractor may be required to execute small specimens of work and shall
allow for doing so in his rates in preliminaries.
No work involving special design shall be put in hand without first consulting the
Architect. Materials shall be properly stored and protected from damage or
contamination and any materials which in the opinion of the Architect are
damaged, deteriorated or otherwise unsuitable for incorporation in the works shall
be removed immediately from the site and replaced at the contractor’s expense.
Workmanship shall conform to recognized good practice and British Standard
Codes of Practice (B.S.C.P) when such exists. Where in doubt the tenderer is
required to confirm with the designers
B
BLASTING OPERATIONS
Blasting will only be allowed with the express permission of the Project Architect
in writing. All blasting operations shall be carried out at the Contractor's sole risk,
and cost in accordance with any County regulations in force for the time being, and
any special regulations laid down by the Project Architect governing the use and
storage of explosives.
C
MATERIALS ARISING FROM EXCAVATIONS
Materials of any kind obtained from the excavations shall be the property of the
Client. Unless the Project Architect directs otherwise such materials shall be dealt
with as provided in the Contract. Such materials shall only be used in the works, in
substitution of materials which the Contractor would otherwise have had to supply
with the written permission of the Project Architect and due allowance or credit
made for the materials used
D
CONTRACTOR'S SUPERINTENDENCE/SITE AGENT
The Contractor shall constantly keep on the works a literate English speaking
Agent or Representative, competent and experienced in the kind of work involved
who shall give his whole experience in the kind of work involved and shall give his
whole time to the superintendence of the works. Such Agent or Representative
shall receive on behalf of the Contractor all directions and instructions from the
Project Architect and such directions shall be deemed to have been given to the
Contractor.
E
LOCAL REGULATIONS AND BY-LAWS
The Contractor is to comply with all local authority regulations and by-laws
including serving of notices and paying of fees where applicable.
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A
EXISTING SERVICES
Prior to commencement of any work the Contractor shall ascertain from the
relevant authorities and from a keen observation of the building, the exact
positions, depths and levels of all existing electric cables, water pipes and other
services in the building and shall make whatever provisions may be necessary and
those that may be required by the authorities concerned for the support and
protection of such services. Any damage or disturbance caused to any
service/installation shall be reported immediately to the Project Architect, the
Employer and the relevant authority and shall be made good to their satisfaction at
the Contractor’s expense.
In addition to the above requirement, the Contractor is required to program any
disconnection and reconnection of services in search a manner that it shall not in
any way affect the continuity of the operations of the buildings.
B
MATERIALS, TOOLS, PLANT AND SCAFFOLDING
The Contractor shall be responsible for the provision of all materials, scaffolding,
tools, plant, transport and workmen required for the works except insofar as may
be stated otherwise herein.
All materials and workmanship used in the execution of the works shall be of the
best quality and description. Any materials condemned by the Project Architect
shall immediately be removed from the site at the Contractor’s cost.
All plant, tools and scaffolding shall comply with all regulations whether general or
local which are in force throughout the period of the contract and shall be altered
or adapted during the contract as may be necessary to comply with any
amendments in or additions to such regulations.
C
SUPERVISION
The works shall be executed under the direction and to the entire satisfaction of
the Project Architect who shall, at all times, have access to the works.
D
TRANSPORT TO AND FROM THE SITE
The Contractor shall allow in his rates and prices for the transport of materials,
workmen etc., to and from the site for the proposed works, at such hours and by
such routes and means as are permitted by the authorities.
E
SECURITY OF THE WORKS
The Contractor shall be entirely responsible for the security of all the works, store,
materials, plant and shall provide adequate watching and lighting and other
necessary safeguards to ensure this security and protection.
F
PUBLIC AND PRIVATE ROADS, PAVEMENTS ETC.
The Contractor shall make good at his own expense any damage he may cause to
public and / or private roads and pavements in the course of executing this
Contract.
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A
FAIR WAGES
The Contractor shall pay rates and wages and observe hours and conditions of
labour not less favourable than the minimum rates of remuneration and minimum
conditions of employment applicable within the jurisdiction of the Local Authority as
stipulated by the Minister for Labour.
The Contractor shall comply with the Regulation of Wages and Conditions of
Employment Act, Building and Construction Industry Wages Council.
Should a claim be made to the Employer alleging the Contractor’s default in
payment of Fair Wages of any Workman employed on the Contract and if proof
thereof satisfactory to the Employer is furnished by the Labour Department, the
Employer may, failing payment by the Contractor, pay the claim out of any money
due or which may become due to the Contractor under the Contract.
The Contractor shall furnish to the Project Architect if called upon to do so such
particulars of the rates of wages, hours and conditions of labour referred to above.
B
POLICE REGULATIONS
The Contractor shall comply with all instructions and regulations of the police
Authorities and shall pay any fines and costs arising from non-compliance of the
same which may arise in the course of executing this Contract.
C
OVERTIME
Unless overtime is directed by the Employer or the Project Architect on his behalf
for reasons other than the Contractor’s own interest to complete the work within
the contract period, the contractor will be responsible for any extra cost arising
there from.
If overtime is worked in accordance with an explicit written instruction issued by
the Project Architect, the Contractor shall be reimbursed in respect of such
overtime to the extent only of the additional NET cost of productive time payable
over and above the basic hourly rates as laid down by the Regulation of Wages
and Conditions of Employment Act, Building and Construction Industry Wages
Council, and excluding any bonuses, profits and overheads.
D
ACCESS TO SITE AND TEMPORARY ROADS
The Contractor will be deemed to have inspected the site and all access means
and allowed in his rates or in this clause any costs associated with this item
E
LIGHTING AND POWER
The Contractor shall provide at his own risk and cost all artificial temporary lighting
and power for use on the works, including all Sub-Contractors and Specialists
requirements and shall be responsible for all temporary connections, wiring,
fittings, etc. surety and clearing away on completion including paying all fees and
obtaining permits thereof.
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A
WATER FOR THE WORKS
The Contractor shall provide at his own risk and cost all water for use in
connection with the works (including the work of Sub-Contractors) and pay all
costs and fees in connection therewith.
He shall also provide temporary storage tanks and tubing, etc. as he may consider
necessary and clear away at completion.
All water shall be fresh, clean and pure, free from earthily vegetables or organic
matter, acid or alkaline substances in solution or suspension and shall be tested if
so required by the Architect. The Contractor is advised to investigate the position
of water supply for works and take this into account in his pricing.
B
PROGRESS SCHEDULE
Immediately after signing the Contract, the Contractor is to prepare a Time and
Progress Chart showing the time and order in which he proposes to carry out the
works within the total construction time stated in the contract. The chart shall show
in detail the order in which each section, element or activity of the works is to be
carried out.
At the end of each week the Contractor shall mark on the chart in a different colour
the actual time taken to complete the respective stages and sections of the work.
The Contractor shall also show upon the chart or on a different sheet to be made
available to the Project Architect and the Employer the anticipated weekly labour
strength required (divided into labourers and craftsmen) and shall similarly mark up
the actual numbers employed.
The Contractor shall obtain the Project Architect's approval of the chart and then
shall supply copies to the Project Architect, the Quantity Surveyor, the Engineer
and the Employer, and he shall pin one copy upon the site where directed. He
shall thereafter adhere strictly to the approved schedule. In the event of the work
falling behind the approved programme for any reason whatsoever, the Contractor
shall, within a week of the deviation becoming apparent, prepare a revised
schedule showing how lost time would be made up within the overall Contract
Period.
Upon commencement of the works, the contractor shall be required, in addition to
other requirements on the recording of progress contained herein, to compile and
submit to the Project Architect and the Employer Site Weekly reports upon which
shall be recorded daily activities on site including the labour and machinery (if any)
on site, deliveries of materials on site and the extent of work achieved at the close
of the working day. The records shall be filed with the relevant parties not later
than the Wednesday of the subsequent week.
The Contractor is required to execute the work with speed and dispatch to take as
short a time on the project as possible. The Contractor may arrange overtime
working with the Employer to achieve this. Any overtime payments should be
allowed for in the rates and prices. No extra payment beyond the Contract Sum
shall be allowed in connection thereto.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/13
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
TEMPORARY STRUCTURES AND STORAGE OF MATERIALS
The Contractor shall provide adequate storage facilities of approved specifications
to the satisfaction of the Project Architect. The facilities shall be for his use and
those of the Sub-contractors
B
SANITATION OF THE WORKS
The Contractor shall make his own arrangements for sanitary conveniences for his
workmen. Any arrangements so made shall be in conformity with the Public Health
requirements for such facilities. He shall be solely liable for any infringement of the
requirements. At the completion of the Contract this shall be removed and the
ground made good.
C
PROTECTING AND CLEANING THE WORK
The Contractor shall cover up and protect all finished work liable to damage
including provision of temporary roofs, gutters, drains, etc., as necessary until the
completion of the works.
In the event of any damage occurring to the works, materials, sewers, drains,
gullies, paths or other works on the site in temporary possession of the contractor
for the purpose of this Contract, either from the weather, want of proper
protection, defects or insufficiency of the works or any other cause whatsoever
during the progress of the works, the Contractor alone shall be responsible and
shall, without extra charge, make good all damage and pay all costs which may be
levied.
D
PREVENTION OF NUISANCE
The Contractor shall take all possible precautions to prevent any nuisance,
inconvenience or injury to the occupiers/users of the building generally; users of
the adjacent and neighbouring properties, and to the public, and shall use proper
precautions to ensure the safety of all wheeled traffic and pedestrians.
All work operations which may produce undue levels of noise, dust, vibration,
welding flushes or any other discomfort to the occupiers of the neighbouring
buildings or the general public must be undertaken at suitable times which shall be
determined in close liaison with the Project Architect and the Employer.
In any event the Contractor shall carry out his operations with the utmost care to
avoid noise, dust and any avoidable disturbance to the existing structures and
neighbouring property especially during demolitions.
Any damage caused by his agents, workmen, etc., to the existing structures or
property or any theft or loss of property will solely be his responsibility. The
Contractor shall be responsible for taking all steps to ensure that his workmen,
agents, etc, do not interfere with the property in the proximity of the works.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/14
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
PREVENTION OF NOISE
In addition to the above provision on nuisance, the Contractor shall keep the
general noise emanating from the site operations at all times to a level that does
not cause discomfort to the average person. He shall take all necessary measures
to muffle the noise from his tools, equipment and workmen to the reasonable
satisfaction of the Project Architect and the Employer.
B
REMOVAL OF PLANT, RUBBISH, ETC.
The Contractor shall, upon completion of the Works, remove and clear away all
plant, rubbish, cans and unused materials, and shall leave the building and
generally the whole of the site of the works in a clean and tidy state to the
satisfaction of the Project Architect and the Employer. During site operations, he
shall also remove from the site all rubbish and dirt as it is produced to maintain the
tidiness of the premises and its immediate environs.
C
TRAINING LEVY
The Contractor’s attention is drawn to Legal Notice No. 237 of October 1971,
which requires payment by the Contractor of a Training levy on all contracts of
more than Shs. 50,000.00 in value and he should allow in this section of these Bills
of Quantities for all costs arising or resulting therefrom.
D
LABOUR AND PLANT RETURNS
The Contractor shall deliver to the Project Architect detailed weekly returns
showing the supervisory staff and the numbers of the several classes of labour
and plant employed on the Works.
E
VISITORS BOOK AND SITE DIARY
The Contractor shall keep on the site a visitors book for recording the names of all
persons who visit the site for the purpose of the project. He shall also maintain on
site a diary in which he shall record site activities on a daily basis and particularly
any occurrence which bears on the progress of the works in any way. The visitors’
book and the diary shall be surrendered to the Project Architect at the completion
of the project or at any other time that the he may direct.
F
WARRANTY AND PERFORMANCE STANDARDS
The Contractor shall furnish the Employer with a general written warranty covering
qualities of workmanship, materials and equipment, and be compelled thereby for
a five year period after practical completion of the Contract, except for latent
defects which shall be warranted for ten years. The Contractor must make good,
at his own expense, such repairs and replacements as may be required as a
consequence of negligent workmanship or defective materials. The Contractor
must also procure such warranties and guarantees as described in the
specifications section of these Bills of Quantities and relevant Codes of Practice.
The Contractor must also comply with all tests or materials as required and / or as
directed by the Project Architect.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/15
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
SAFETY, HEALTH AND WELFARE OF WORKPEOPLE
The Contractor shall allow for providing for the safety, health and welfare of
workpeople and for complying with any relevant Ordinances, Regulations and
Union Agreements.
B
NATIONAL INSURANCE, HEALTH INSURANCE AND PENSIONS
The Contractor shall allow for making any National Social Security Fund and
National Health Insurance Fund payments due in respect of workpeople.
C
HOLIDAYS AND TRANSPORT FOR WORK PEOPLE
The Contractor shall allow for providing holidays and transport for workpeople and
for complying with any relevant Ordinances, Regulations or Union Agreement.
D
WORKS TO BE DELIVERED UP CLEAN
On completion of the Contract, the site and the works shall be cleared of all plant,
scaffolding, rubbish and unused materials and shall be delivered up clean and in
perfect condition in every respect to the satisfaction of the Project Architect.
Particular attention is to be paid to leaving all windows and floors clean and
removing all paint and cement stains.
E
PROTECTION OF WORKS AND PERSONS
The Contractor shall allow for the protection of his own and his Sub-Contractor's
work liable to damage, including provision of temporary roofs, gutters, drains, etc.,
if necessary and shall case-up, cover or in other suitable ways protect all finished
work liable to injury, to the satisfaction of the Project Architect until completion of
the Contract. From the beginning to the completion of the works, the same shall be
under the entire care and control of the Contractor, who shall take all possible
precautions to prevent any nuisance, inconvenience or injury to the holders or
occupiers of surrounding properties and to the public generally, and shall at all
times keep all paths and roads affected by the works in a safe and clear state, and
shall use proper precautions to ensure the safety of all wheeled traffic and
pedestrians.
The Contractor shall allow for providing all watching, lighting, barriers, covering
open trenches and protection of the works, including Sub-Contract works as may
be necessary for the safety of the works and for the protection of the public and his
own and Sub-Contractor's employees. In the event of any damage or loss
occurring to the works or to materials or to any sewers, gullies, drains, paths, or
other works on the site in temporary possession of the Contractor for the purpose
of this Contract either from the weather, want of proper protection, defects, theft,
insufficiency of the works or any other cause whatsoever during the progress of
the works, or for any accident or damage to property or persons by reason of the
said works, the Contractor alone shall be responsible and shall without extra
charge, make good all damage and pay all costs incurred.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/16
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
SITE OFFICES
The Contractor must allow for erecting and maintaining on the site in such
positions as may be directed, adequate site offices for the use of his own site staff
and removing the same at completion and making good all surfaces disturbed. The
site office shall be of sufficient size and shall have sufficient furniture to permit the
Project Architect to hold site meetings in it. The Contractor shall also allow for
providing, erecting and maintaining where directed a lock-up hut containing a
pedestal type water closet and wash basin for the sole use of the Project Architect
and other consultants, including making temporary connections to drains and
water supplies and paying all charges for connections, conservancy and water
consumed.
The Contractor shall also allow for providing the services of a sweeper, for keeping
both office and closet in a clean and sanitary condition from the commencement to
the completion of the works; and for dismantling at completion and making good all
disturbed surfaces. The office and closet shall be completed before the contractor
will be permitted to commence the works.
B
TELEPHONE
The Contractor shall provide in the offices from the commencement to completion
of the works, telephone facilities and shall pay all the necessary acquistition costs
and rentals, airtime charges etc for the same.
C
WORK TO BE OPENED UP AT THE REQUEST OF THE PROJECT ARCHITECT
The Contractor shall, at the request of the Project Architect within such time as the
Project Architect shall name, open for inspection any work covered up, and, should
the Contractor refuse or neglect to comply with such request, the Project Architect
may employ workmen other than those employed by the Contractor to open up the
same. If the said work has been covered up in contravention of the Project
Architect's instructions, or if, on being opened up, it be found not in accordance
with the drawings or Bills of Quantities or the instruction of the Project Architect,
the expenses of opening and covering it up again whether done by the Contractor
or by the Project Architect shall be borne by and be recoverable from the
Contractor or may be deducted from any monies due to the Contractor.
If the work has not been covered up in contravention of such instructions and be
found in accordance with the said drawings and Bills of Quantities, then the
expenses aforesaid shall be borne by the Employer, and be added to the Contract
Sum; provided always that, in the case of foundations or of any other urgent work
so opened up and requiring immediate attention, the Project Architect shall within
a reasonable time after the work has been opened, make or cause to be made the
inspection thereof, and at the expiration of such time, if such inspection shall not
have been made the Contractor may cover up the same and shall not be required
to open it up again for inspection except at the expense of the Employer.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/17
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
SHEDS FOR STORAGE OF MATERIALS
The Contractor shall provide, erect and maintain on the site, in such positions as
may be directed, ample temporary watertight, lock-up sheds for the proper storage
and protection of cement and other materials liable to damage, and shall remove
same at completion and make good all surfaces disturbed. He shall also provide
space for storage accommodation which Sub-Contractors may wish to erect for
themselves.
B
HOARDING
The Contractor shall allow for providing and clearing away on completion such
hoarding, fencing, fates etc. as may be required for the security of the site and
as instructed by the Project Architect. The exact location of these items are to be
negotiated with the Local Authority by the Contractor who will also be responsible
for paying any fees or taxes in respect of the hoarding, fencing or gates.
The Contractor shall allow for thoroughly maintaining the hoarding and gates
through out the Contract and clearing away and making good disturbed ground on
completion. All materials arising will remain the property of the Contractor and he
should allow credit against this accordingly.
C
SCAFFOLDING
The Contractor shall allow for providing, erecting and dismantling all general
scaffolding required for the works. The Contractor must allow here or in his rates
for providing all special scaffolding required by his Sub-Contractors.
D
APPROVAL OF PROJECT ARCHITECT FOR EMPLOYMENT OF SUBCONTRACTORS
The Contractor will be required to obtain the approval of the Project
Architect/Engineer in writing before employing any Sub-Contractors for any portion
of the work.
E
TESTING
Allow for all expenses in connection with the testing of materials as detailed in
specifications and as required by the Project Architect including the supply and
preparation of materials to be tested, the cost of materials and their packing and
conveyance to the nearest approved testing laboratory, laboratory charges, etc.
F
WORK RE-MEASUREMENT
All work in this Contract shall be re-measured on completion and a final account of
the contract prepared by the Quantity Surveyor. The contractor will be given the
opportunity to be present for all re-measurements. The final contract sum will be
based on the final re-measurements. The Contractor is therefore cautioned against
using the Bills of Quantities for ordering of materials as the quantities may change
in the course of the CSontract. Neither should the contractor use the Quantities in
the Bills of Quantities for executing work on site. The use of the Bills of Quantities
by the Contractor for the above purposes shall be at the Contractors own risk and
no claims arising from any losses arising therefrom shall be accepted.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/18
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
THE STANDARD METHOD OF MEASUREMENT
The following exceptions to the SMM should be noted:
i) Clause D 5 (f) - Working space: for all types of excavations no allowance has
been given for any working space. The contractor will be deemed to have taken
into account for working space where required in his rates for excavations.
B
CONTRACTOR
The term “ the Contractor “ wherever used in connection with this Contract shall
mean the person or persons, partnerships, firms or company whose tender (offer)
for the works has been accepted and who has or have consequently entered into a
written Contract with the Employer to carry out the works.
C
NOMINATED SUB-CONTRACTORS
The Contractor will be required to ensure that all Nominated Sub-Contractors enter
in to the Sub-Contract Agreement issued under the Authority of Kenya Association
of Building and civil Engineering Contracts (KABCEC) and as exemplified or varied
hereafter and he must deposit with the Architect a signed extract of the relevant
details thereof.
Nominated Sub-Contractors and Suppliers
(a) The Contractor will not receive any cash, trade or other discounts on
Prime Cost and Provisional Sums. Any profit in lieu of these discounts
which the contractor desires must be priced by him against the appropriate
item provided in the Bills of Quantities.
(b) When tendering for works covered by Prime Cost and Provisional
Sums the Contractor will be treated as any other Nominal Supplier or SubContractor.
(c) The Employer reserves the right to pay direct on certification of the
Quantity Surveyor some or all accounts in respect of works and the
Provisional Sums due to Nominated Sub-Contractors or Nominated
Suppliers and to deduct any amounts so paid from any sums
otherwise payable to the Contractor.
Should this reservation be adopted any profits which the Contractor
may have allowed on Prime Cost and Provisional Sums may be
omitted from the contract at the discretion of the Architect.
Direct payment will not be deemed to construe omission of the work
from the Contract and the Contractor will continue to be responsible
for the work or goods in accordance with the terms of the Contract.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/19
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
PERFORMANCE BOND
Before acceptance of his tender offer the contractor shall be required to
provide a Performance Bond in amount of 10% being estimated value of
contract sum from approved Bank or Insurance Company for due
performance of this Contract.
Alternatively cash bond deposited with the Client is acceptable.
The Bond is to be forfeited in the event of the Contractor failing to complete the
works in accordance with this Contract.
The Bond will be discharged on the satisfactory completion of this Contract as
certified by the Architect.
Provisions of Clause 16.2 of Conditions of Contract on provision of the
Performance Bond by the Employer shall be deleted.
B
CONTRACT DRAWINGS
The drawings from which these Bills of Quantities are prepared both Architectural
and Engineering and contained in the list of drawings in the Appendix of these Bills
of Quantities.
C
BILLS OF QUANTITIES
The Bills of Quantities are prepared in accordance with Standard Method of
Measurement for Building Works except where specifically stated otherwise.
D
COPYRIGHT
All Drawings, tracings, Prints and specification are the sole property of the
Architect and or Engineer and the copyright of these Bills of Quantities is vested in
the Quantity Surveyor. No part of these documents may be reproduced without
their permission in writing.
At the completion of the job the Contractor is to return to the Architect all drawings
and bearing his name and to the Quantity Surveyor all copies of Bills of Quantities.
E
APPENDICES
The appendices to the Bills of Quantities shall be regarded for Contract purposes
as part of the Bills of Quantities and shall be read and construed with the
appropriate sections of the Bills of Quantities as if contained therein.
F
AREA TO BE OCCUPIED BY THE CONTRACTOR
The area of the site which may be occupied by the contractor for use of storage
and for the purposes of erecting workshops, etc, shall be defined on the
satisfaction of the Architect.
G
WATCHING AND LIGHTING
The Contractor shall provide at his own risk and cost all watching and lighting as
necessary to safeguard the existing buildings, the works, plant and materials
against damage and theft.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/20
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
SCAFFOLDING
Where required the Contractor shall provide and erect an approved type of
scaffolding and staging, maintain for the use of all workmen including those of all
Sub-contractors and afterwards dismantle and remove from site.
All scaffolding and staging over two metres in height together with access ladders,
ties to walls and handrails, etc. shall comply in all respects with the Factories
(Building Operations and works of Engineering Construction) rules 1978 and shall
be to the approval of the Chief Inspector of Factories.
B
PROVISIONAL SUMS
The term “Provisional Sum “ wherever used in these Bills of Quantities shall have
the meaning stated in A item A7 (i) of the Standard Method of measurement
mentioned in Condition No. 30 of the conditions of contract. Such sums are net
and no additions shall be made to them for profit.
C
PRIME COST (OR P.C.) SUMS
The term “Prime Cost “or P.C .Sum” wherever used in these Bills of quantities
shall have the meaning stated in section A item A7 (ii) of the Standard Method of
Measurement mentioned in the Conditions of Contract.
Persons or firms nominated by the Architect to execute work or to provide and fix
materials or goods as stated in the Conditions of Contract are described herein as
Nominated sub-Contractors. Persons or firms so nominated to supply goods or
materials are described herein as Nominated Suppliers.
D
DEMOLITIONS OF EXISTING STRUCTURES
All due care shall be taken during demolition of the existing structures and the
works shall be done in close liaison with both the Architect and the Client to
minimise nuisance by noise or dust and damage
E
ATTENDANCE UPON NOMINATED SUB-CONTRACTORS
The term “Attendance” following P.C sums for nominated Sub-contractors work in
these Bills of Quantities shall be deemed to include both attendance and items of
special attendance.
“Attendance” on Nominated Sub-Contractors shall be given as an item in each
case and shall be deemed to include allowing use of standing scaffolding, mess
rooms, sanitary accommodation and welfare facilities providing office
accommodation and stores for storage of subcontractors plant and materials,
providing light and water for their work, clearing away rubbish,
unloading facilities for storage ( as per specified under “storage of materials” in the
general preliminaries of Bills of Quantities ), hoisting, providing water and power
(as specified under (water and electricity Supply for the Works in the general
preliminaries of the bills of quantities), and removing and replacing dust covers,
pipe casings and the like necessary for the execution and testing of SubContractors` works providing templates, dimensions and supervision for the
proper carrying out of the Sub-Contractors work and being responsible for the
accuracy of the same.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/21
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
DIRECT CONTRACTS
Notwithstanding the foregoing Conditions, the employer reserves the right to place
a “Direct Contract” for any goods or services required in the works which are
covered by P.C Sum in the Bills of Quantities and to pay for the same direct.
In any such instance, profit relative to the P.C Sum in the priced bills of quantities
will be adjusted as described for P.C Sums and allowed.
B
ATTENDANCE UPON OTHER TRADESMEN ETC
The Contractor shall allow for the attendances upon other tradesmen and shall
afford such persons employed for the execution of any work not included in this
contract every facility for carrying out their work and also for the use of his ordinary
scaffolding. The contractor however, shall not be required to erect any special
scaffolding for them.
The Contractor shall perform such cutting away for and making good after the
work of such tradesmen or persons as may be ordered by the architect and the
work will be measured and paid for to the extent executed at rates provided in
these Bills.
C
SUFFICIENCY OF TENDER
The contractor shall be deemed to have satisfied himself before tendering as to
the correctness and sufficiency of his tender for the works and of the rates and
prices stated in the priced Bills of quantities which rates and prices shall cover all
his obligations under the contract and all matters and things necessary for the
proper completion and maintenance of the works.
D
STAMP CHARGES
The Contractor shall allow for the payment all Stamp Charges in connection with
the Surety Bond and contract Agreement.
E
FIGURED DIMENSIONS
Figured dimensions are to be followed in preference to dimensions scaled from the
drawings, but whenever possible dimensions are to be taken on the site or from
the buildings. Before any work is commenced the Sub-contractors or specialists
firms dimensions must be checked on the site and /or buildings and agreed with
the contractor, irrespective of the comparable responsibility for the accuracy of
such dimensions.
F
SITE MEETINGS
Site Meetings will be held in the site office at intervals as directed by the Architect
and the contractor will be required to attend and also summon the attendance of
Sub-Contractors and Specialists.
Adequate arrangements must be allowed for with regard to tables, chairs, etc.,
which must be provided by the Contractor.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/22
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
TRESPASS, DAMAGE AND CARE OF WORKS
The Contractor shall prevent any trespass on the adjoining property, and he shall
take all reasonable precautions during the progress of the contract to prevent any
damage to the adjoining property or public or private roadways and to prevent
material, plant, rubbish, debris, etc., collecting on the adjoining property of
roadways.
Should the Contractor wish to erect scaffolding on or to make use of adjoining
property he shall obtain prior permission from the Architect and clear away at
completion of his work or when directed and make good any damage to his
satisfaction.
Except as provided for in the conditions of contract, the contractor shall be held
responsible for the care of works generally until their completion, including all
works executed and materials deposited on the site by the himself or SubContractors or Suppliers together with all risks arising from weather, carelessness
of operatives, damage or loss by theft, or by other cause and he shall make good
all such damage or loss at his own expense.
The Contractor will be responsible for the protection of adjoining buildings,
boundary walls, fences, services either overhead or underground and for the
making good of or paying for all damage thereto, should such be caused in the
course of building operations.
The Contractor shall allow for making good all damage to the roads, kerbs, surface
water channels, etc., occasioned by heavy traffic delivery of materials and building
operations generally, to the entire satisfaction of the Architect.
The Contractor shall also be responsible for observing any Bye-law or Authority
regarding keeping the road free from mud, filth, etc, arising out of the execution of
the works.
The Contractor shall at all times observe any police regulations including those
regarding the loading of or unloading of or waiting by vehicles on the public
highway and the contract sum shall be deemed to include for strict compliance
therewith.
B
TREES AND SHRUBS
The Contractor will be responsible for the care and preservation of any trees and
bushes except where expressly stated otherwise by the Architect. In particular they
must be protected from damage, including roots, paint marks, etc.
C
TEMPORARY WORKS
The Contractor is to provide all temporary work in the nature of buildings,
scaffolding, roads, services and amenities at his expense and is to remove the
same at completion and make good any disturbed surfaces.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/23
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
MATERIALS ON SITE
All materials for incorporation in the works must be stored on or adjacent to the
site before payment is effected unless specifically exempted by the Architect. This
is to include the materials of the Main Contractor, Nominated Sub-Contractors and
Nominated Suppliers.
B
GOVERNMENT ACTS AND REGULATIONS
The Contractor will be deemed to have acquired with all Government Acts, Rules
and Regulations including Local Authority Regulations applicable in the area as
regards all aspects of construction including labour regulations, licenses, and
permit which may be required to enable proper execution of this contract.
Contractor’s attention is drawn to the Factories Act and must allow for compliance
with the regulations enacted therein insofar as they are applicable.
Contractor’s attention is also drawn to the by-laws and regulations of the Local
Authority concerning building inspection and approvals and must comply.
C
ORDERS FOR MATERIALS
The Contractor will be responsible for placing orders for materials required in this
contract and this applies particularly to all imported materials. Should the
contractor experience any difficulties in placing necessary orders he should at
once inform the Architect who will act accordingly.
D
TRAINING LEVY
The Contractor’s attention is drawn to the legal Notice No. 237 of October 1971
which requires payment by the Contractor of a training levy on all contracts of
more than Kshs. 50,000.00 in value and his tender must include for all costs
arising or resulting therefrom.
E
TESTING
Allow for testing all installation required to be tested and provide everything
necessary for this purpose and leave in perfect working order to the satisfaction of
the Architect or Local Authority.
Allow for all expenses in connection with testing of the materials as specified
hereunder including the supply and preparation of materials and their packing and
conveyance to the nearest Ministry of Works Testing Laboratory, laboratory
charges etc.
The following items of tests will be measured according to the number of tests
actually called for by the Architect but unsuccessful tests will not be included in the
measurements.
The Architect shall arrange for the testing of such materials as he may at his
discretion deem desirable, but the testing shall be made at the expense of the
Architect and not at the contractor unless the materials fail to pass the test or are
in the opinion of the Architect not in accordance with the Specification, in either
case the contractor shall pay for testing in accordance with the current scale of
testing charges laid down by the Ministry of works.
The Contractor shall allow for all other testing of materials apart from the above,
required by these specifications and he shall be responsible for all expenses
incurred in completing such tests, including costs of labour, materials, equipment,
transport and charges of the testing authority, etc.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/24
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
RATES FOR ITEMS
Rates for all items unless otherwise described shall include for conveyance and
deliver, unloading, storing, hoisting, and all labour setting, fitting, fixing in position,
straight cutting and waste, return of packages and for all establishment charges,
profits, etc.
B
CLEAR RUBBISH
Clear and cut away all rubbish and waste materials including Sub-contractors that
may accumulate from time to time during the progress of the works, and clean the
whole of the works internally and externally at completion.
Allow for cutting out and making out and making good defective work in all trades
and for leaving the whole of the works clean, and perfect at completion to the
satisfaction of the Architect.
C
THE STANDARD METHOD OF MEASUREMENT
These Bills of Quantities are prepared in accordance with the standard method of
measurement of Building Works for East Africa (S.M.M.) 1989 Edition metric, with
exception of the following deviations:
i) Attendance clause E.19(a) of the SMM is to read: Attendance on
nominated Sub-contractors shall be given as an item in each case and
shall be deemed to include:
Allowing use of standing scaffolding, messrooms, sanitary
accommodation and welfare facilities, provision of special
scaffolding where necessary, providing space of office
accommodation and for storage of plant and materials
providing light and water for works, clearing away rubbish,
unloading facilities for storage, hoisting, providing electric
power and removing and replacing duct covers, pipe casings
and the like necessary for the execution of sub-contractors
work and be responsible for accuracy of the same.
ii)
Disposal of Water
Clause 18(a) and (b) of the SMM are deleted and following
clause is substituted.
Keeping excavations free from all water including spring
and running water shall be deemed to be included in all the
items of excavations.
iii) Planking and Strutting
Clause D19 of the SMM delete the words “shall be given as an
item or” – and the clause will read “ that planking and struting
shall be deemed included in all items of excavations.
iv) Fix only
“Fix only” shall mean take delivery at nearest supply point, pay
demurrage charges, load and transport to site, unload, store,
unpack, assemble as necessary, distribute to position,
hoist and fix only.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/25
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
The S M M (Cont'd….)
v)
Working Space
The following variation from Clause D 5 (f) of SMM shall be noted
For all times of excavations no allowance has been given for any
working space. The Contractor will be deemed to have taken
account of working space where required in his rates for these
excavations.
A
V.A.T PAYMENT
The Contractors attention is drawn to Government requirement with regard to
payment of V.A.T. and the Contractor is to include in his rates for conforming with
these requirements.
B
FENCES AND GATES
When existing fences and gates have to be removed or altered for the proper
execution of the works, the Contractor shall at his own expense, erect temporary
fencing and gates and reinstate the same as necessary.
C
BUILDING REGULATIONS
All buildings erected by the Contractor upon the Site or the offices or the camp and
the layout of the buildings and the sites shall comply with all the existing laws of
Kenya and all local by-laws in so far as they are applicable.
D
FAULTY WORK
Any work which fails to comply with the Specifications shall be rejected and the
Contractor shall, at his own expense, make good any defects, as directed by and
to the satisfaction of the Architect, in accordance with the Contract.
E
AS- BUILT DRAWINGS
Following the progress of the works the Contractor is to prepare as-built drawings
were required.
The as-built drawings will be part of the handing over. At this time the as-build
drawings shall be presented for approval.
After approval and corrections, if any, the originals and the number of copies as
requested by the Client are to be supplied to the Employer.
No separate payment will be made to the Contractor for the as-built drawings,
preparation and delivery of the originals and the sets of copies, being their cost
included by the Contractor in the rates of the Bills of Quantities.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/26
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
WASTE DISPOSAL
The Contractor shall comply with all government, regional and district regulations
in disposing of waste, garbage, waste water, sewage and any other deleterious
substances including but not limited to petrol, diesel, engine oil, hydraulic and
brake fluid, battery acid and cement.
All waste water and sewerage from office, residential and mobile camps shall be
piped to soak pits or other disposal areas constructed in accordance with local
government regulations, and where and when such regulations require it the
Contractor shall obtain a permit or other appropriate documentation approving the
disposal methods being used.
All used fuels, oils, other plant or vehicle fluid and old tyres and tubes shall be
collected to a central disposal point, on a regular basis and disposed of by burning
in a manner conforming to government regulations and approved by the Engineer.
All household, office, workshop and other solid waste shall be collected to a
central disposal area, on a daily basis and burnt in a manner approved by the
Architect. Any items remaining after burning shall be buried in a disposal pit, the
location, size and depth of which shall be approved by the Engineer.
Servicing of plant, equipment and vehicles shall whenever possible be carried out
at a workshop area. This workshop area shall be equipped with secure storage
areas for fuels, oils and other fluids constructed in such a way as to contain any
spillage’s which may occur, and similar storage where used fluids can be stored
securely prior to their disposal.
When servicing of plant, equipment and vehicles is carried out away from the
workshop area it shall be done at locations and in such a manner as to avoid
spillage and contamination of streams and other drainage courses. Any spillage
shall be cleaned up by either burning in place or collecting the contaminated soils
and burning them at the central disposal area, al to the satisfaction of the
Architect.
On completion of the work on any portion of the project or borrow or gravel pit the
Contractor shall ensure the area is cleaned up and all garbage and other
deleterious materials are removed as described above.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/27
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
SUBMISSION OF SAMPLES
As soon as possible after the Contract has been awarded, the Contractor shall
submit to the Architect a list of the suppliers from whom he proposes to purchase
the materials necessary for the execution of the works.
Samples and details of all the materials proposed for use in the Works, whether
from an outside supplier or supplied by the Contractor from his own resources,
shall be submitted to the Engineer, and shall be tested where required, and
receive his approval prior to the materials being transported to the Site of the
Works. The Contractor shall provide all samples free of charge.
The Contractor’s programme shall allow sufficient time for materials testing and no
claims for delays or extra costs arising out of this will be accepted.
All materials supplied for use in the Works shall conform with the specified
tolerances, to the quality of the approved samples which will be kept at the site
office until the completion of the Contract.
Where a material has been specified by a manufacturer’s trade name, the product
of another manufacturer will be accepted provided that, in the Architects opinion, it
is in all respects of an equivalent or better quality.
TOTAL CARRIED TO COLLECTION
Bill No. 1
Preliminaries
1/28
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
COLLECTION
From
From
From
From
Page 1/1
Page 1/2
Page 1/3
Page 1/4
From
From
From
From
Page 1/5
Page 1/6
Page 1/7
Page 1/8
From
From
From
From
Page 1/9
Page 1/10
Page 1/11
Page 1/12
From
From
From
From
Page1/13
Page 1/14
Page 1/15
Page 1/16
From
From
From
From
Page 1/17
Page 1/18
Page 1/19
Page 1/20
From
From
From
From
Page 1/21
Page 1/22
Page 1/23
Page 1/24
From
From
From
From
Page 1/25
Page 1/26
Page 1/27
Page 1/28
TOTAL OF PRELIMINARIES
Carried to Main Summary
Bill No. 1
Preliminaries
1/29
Consting Consult Ltd
Quantity Surveyors
BILL NO. TWO (2)
MAIN HOUSE
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 1
SUBSTRUCTURES
All Provisional
The quantities and nature of work indicated are provisional.
The actual work done shall be ascertained, valued and
adjustments made accordingly. Work measured upto and
including ground floor slab.
Excavation and Earthworks
A
Excavate oversite average 150mm deep to remove vegetable
soil cart and deposit in spoil heaps on site as directed
500
Sm
Excavate to reduce levels not exceeding 1.50 metres deep
from stripped levels
222
Cm
Excavate for column bases commencing at reduced level and
not exceeding 1.50metres deep
66
Cm
D
Ditto for wall foundations ditto
216
Cm
E
Ditto for lift shaft base ditto
12
Cm
B
C
Planking and Strutting
F
Allow for maintaining and supporting sides of excavations by
provision of planking and strutting and for keeping the same
free from fallen materials.
Item
Sum
Item
Sum
Keeping excavations free of water
G
Allow for keeping excavations free of water (except spring or
running water) and mud by pumping, baling or other approved
means
Fillings
H
Return, fill and ram selected excavated materials around
foundations compacted in layers not exceeding 300mm deep,
all to the approval of the Engineer
210
Cm
Carried to collection
Bill No. 2
Main House
2/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Selected imported hardcore filling compacted in layers not
exceeding 150mm deep: all to the approval of the Engineer
A
Well rammed and consolidated under floors
282
Cm
B
50mm Thick quarry dust blinding to surfaces of hardcore
458
Sm
306
Cm
458
Sm
50mm Thick blinding concrete; plain mix 1:4:8 under wall
foundation
160
Sm
F
Ditto under column bases
43
Sm
G
Ditto under lift pit shaft
6
Sm
Disposal of excavated materials
C
Load and cart away surplus excavated material from the site
as directed by the Architect
Anti-termite treatment
D
Chemical anti-termite treatment executed complete by an
approved specialist under a ten(10) year guarantee to
surfaces of excavations
Concrete Work
E
Insitu concrete grade 25/20 including vibrating around
reinforcement in
H
Wall foundations
32
Cm
I
Column bases
17
Cm
J
Columns
13
Cm
K
150mm Thick floor slab
458
Sm
L
Lift base
2
Cm
M
200mm thick lift shaft walls
11
Sm
N
Extra over slab for thicknessing 400mm wide x 100mm thick
including forming sinking in hardcore
14
Lm
Carried to collection
Bill No. 2
Main House
2/2
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Reinforcement
High tensile steel reinforcemnt to B.S 4449 and B.S 4466
A
8mm Diameter bars
2,098
Kg
B
10mm Diameter bars
1,259
Kg
C
12mm Diameter bars
4,195
Kg
D
16mm Diameter bars
839
Kg
E
Mesh reinforcement ref A142 or equal and approved
reinforcement in concrete slab including all necessary tying
and support (No allowance for laps)
458
Sm
Sawn Formwork to: F
Vertical sides of wall foundations
107
Sm
G
Ditto column bases
40
Sm
H
Ditto columns
73
Sm
I
Ditto lift base
4
Sm
J
Ditto lift shaft walls
18
Sm
K
Edges of slab and steps 150 - 225m wide
251
Lm
L
Ditto but curved to various radii
16
Lm
458
Sm
Damp proof membrane
M
1000 gauge polythene or other equal and approved damp
proof membrane laid under surface bed; 300mm side and end
laps
Sub-walling
Load bearing approved natural stone walling, chisel dressed;
jointed in cement and sand (1:3) mortar
N
200mm Thick walling
454
Sm
O
12mm Thick cement/sand (1:4) render to plinths
160
Sm
P
Approved bituminous paint to rendered surfaces
Carried to collection
160
Sm
Bill No. 2
Main House
2/3
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Description
Qnty Unit
Rate
Amount
COLLECTION
From Page 2/1
From Page 2/2
From Page 2/3
TOTAL OF SUBSTRUCTURES
Carried to Summary of Bill No. 2
Bill No. 2
Main House
2/4
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 2
REINFORCED CONCRETE SUPERSTRUCTURE
Insitu concrete grade 25/20 including vibrating around
reinforcement.
A
Columns
65
Cm
B
Beams
26
Cm
C
Ring beams
25
Cm
C
Gable beams
11
Cm
D
Staircases
9
Cm
E
Flower planters (Provisional)
7
Cm
F
Gutter beams
14
Cm
H
175mm Thick horizontal suspended slabs
807
Sm
I
150mm Thick staircase landings
36
Sm
J
200mm Thick lift shaft walls
60
Sm
K
150mm Thick lift shaft cover slab
6
Sm
Reinforcement
High tensile steel reinforcement to B.S 4449 and B.S 4466
L
8mm Diameter bars
9,552
Kg
M
10mm Diameter bars
19,105
Kg
N
12mm Diameter bars
5,732
Kg
O
16mm Diameter bars
3,821
Kg
Sawn Formwork to: P
Vertical sides of columns
66
Sm
Q
Ditto but curved on plan
308
Sm
Carried to collection
Bill No. 2
Main House
2/5
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
A
Vertical sides of lift shaft walls
120
Sm
B
Sides and soffites of beams
285
Sm
C
Ditto but curved on plan
48
Sm
D
Ditto ring beams
273
Sm
E
Ditto but curved on plan
55
Sm
F
Soffites of suspended slabs
807
Sm
G
Soffites of top cover lift slab
6
Sm
H
Sides and soffites of gutter beams
180
Sm
I
Ditto gable beams sloping over 15 degrees from the
horizontal
25
Sm
Extra over formwork to fascia beams for the decorative
moulds
15
Lm
K
Sloping soffites of staircases
20
Sm
L
Soffites of landings
36
Sm
M
Edge of risers 150 - 225mm wide
126
Lm
N
Open string extreme width 325mm
13
Lm
J
Rate
Amount
Carried to collection
COLLECTION
From Page 2/5
From Above
TOTAL OF R.C. SUPERSTRUCTURE
Carried to Summary of Bill No. 2
Bill No. 2
Main House
2/6
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 3
WALLING
Bituminous based damp proof course
A
150mm wide
14
Lm
B
200mm wide
249
Lm
External Walls
Selected cut and natural colour quarry stone walling bedded
and jointed in cement and sand (1:4) mortar and finished fair
both faces
C
200mm Thick walling
680
Sm
D
Extra over walling for raking cutting
86
Lm
Internal Walls
Machine cut natural stone walling bedded and jointed in
cement/sand (1:4) mortar; raking where necessary
E
100mm Thick walling
11
Sm
F
150mm Thick walling
41
Sm
G
200mm Thick walling
895
Sm
H
Ditto but curved on plan
108
Sm
I
Extra over walling for raking cutting
95
Lm
J
300 x 75mm Average thick precast concrete coping tapered;
bedded and pointed in cement and sand (1:4) mortar
(provisional)
24
Lm
12mm Thick render and approved waterproofing to internal
surfaces of flower planter walls
30
Sm
K
Carried to collection
Bill No. 2
Main House
2/7
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Sprandel Walls
Machine cut natural stone walling bedded and jointed in
cement/sand (1:4) mortar; raking where necessary
A
200mm Thick walling
3
Sm
B
Ditto but curved on plan
12
Sm
C
300 x 75mm Average thick precast concrete coping tapered;
bedded and pointed in cement and sand (1:4) mortar
(provisional)
50
Lm
1
No
Fire place
D
Construct complete 200mm thick masonry fire place
comprising 350x350mm flue with precast concrete cap; lintels
and decorative mouldings and corbel and cill; hearth finished
in fine chisel dressed stone; sides finished in fire brick lining;
front and sides cladded with mazeras stone all to Architects
details - refer drawing
Carried to collection
COLLECTION
From Page 2/7
From Above
TOTAL OF WALLING
Carried to Summary of Bill No. 2
Bill No. 2
Main House
2/8
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 4
ROOF CONSTRUCTION AND COVERING
Sawn cypress;second grade; clean; well seasoned and
treated with approved wood preservative; pressureimpregnated with celcure 'A' with and including all jointing and
connections (packing piece, bolts etc) as necessary; in roof
approximately 10,000mm high.
A
150 x 50mm Rafters in trusses
558
Lm
B
150 x 50mm Ceiling joists ditto
406
Lm
C
100 x 50 mm Struts and ties ditto
423
Lm
D
150 x 50mm Common rafters
622
Lm
E
150x50mm Hip and valley rafters
324
Lm
F
150 x 50mm Purlins
234
Lm
G
150 x 25mm Scarf joints and splices
332
Lm
H
200 x 50mm; Ridge piece
54
Lm
I
100 x 50mm Wall plate; fixed to concrete or masonary with
and including approved bolts or 6 gauge galvanised mild steel
hoop iron at 1000mm centres
192
Lm
ROOF COVERING
Decra roofing tiles; approved colour supplied by Space and
Style (k) Ltd or other equal and approved; laid and fixed in
accordance with the manufacturer's instructions
J
Roof covering including all necessary fixtures
564
Sm
K
Ridge/Hip cap
308
Lm
Flat metal sheet flashings; 26 gauge; 400mm wide; one edge
bend and built into wall
10
Lm
Flat metal sheet valley flashings; 26 gauge; 600mm wide;
bending and fixing under tiles
90
Lm
Galvanized sheets
L
M
Carried to collection
Bill No. 2
Main House
2/9
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Rainwater Goods
A
100x100mm Prepainted metal rain water
holderbats at 1500mm (maximum) centres
downpipe;
206
Lm
B
Extra over ditto for 800 mm swan neck offset
45
No
C
Ditto for shoe
45
No
100x15mm Thick Wrot prime grade cypress board to eaves;
T & G joints; nailed on and including 50x50mm brandering at
600mm centres both ways
155
Sm
Upvc fascia or berge board as from Space and Style Ltd fixed
in accordance with the manufacturer's instructions
(Provisional)
120
Lm
11
Sm
11
Sm
Eaves Covering
D
E
Cement and sand plaster, as described finished with wood
float to
F
Gable surfaces to receive paint; 15mm thick
Prepare and apply Duracoat 100% pure Acrylic outdoor
protector paint in accordance with the manufacturer's
instructions to:
G
Rendered concrete gable surfaces externally
Carried to collection
COLLECTION
From Page 2/9
From Above
TOTAL OF ROOF CONSTRUCTION AND COVERING
Carried to Summary of Bill No. 2
Bill No. 2
Main House
2/10
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 5
WINDOWS
Approved precast concrete cill; bedded and jointed in
cement/sand (1:3) mortar; pointed in matching coloured
cement.
A
200mm wide x 25mm Thick cill
111
Lm
Pelmet box 150 x 20mm top; 200 x 20mm fascia; 50 x 40mm
cypress bearer; 20 x 150mm return ends
241
Lm
"Silent Gliss" Aluminium curtain rail complete with rollers and
fixing brackets
482
Lm
241
Lm
Wrot cypress; prime grade
B
C
Prepare surfaces; apply undercoat and two finishing coats
first grade clear polyurethane varnish as "crown paints" or
other equal approved; on wood surfaces:
D
Surfaces over 100 but not exceeding 200mm wide
Steel casement window; purpose made standard metal
casement sections complete with Zed sections; permanent
ventilators comprising 'T' bar gauze and metal hood;
openable casements; coupling mullions; approved
ironmongery; as per schedule. Pattern as shown in the
Appendix to Architects approval
E
Window size 800 x 1000mm high overall
8
No
F
Window size 600 x 1000mm high overall
10
No
G
Window size 2100 x 1800mm high ditto
11
No
H
Window size 1200 x 1800mm high ditto
13
No
I
Window size 3450 x 1950mm high ditto; but curved on
elevation
9
No
J
Ditto 3000 x 1950mm high ditto; but curved on elevation
2
No
K
V-shaped window size 3200 x 4000mm high overall
1
No
L
V-shaped window size 4150 x 3000mm high overall
4
No
Carried to Collection
Bill No. 2
Main House
2/11
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
A
Qnty Unit
V-shaped window size 1500 x 1100mm high overall
2
No
95
Sm
203
Sm
6
Sm
209
Sm
209
Sm
Rate
Amount
Burglar Proofing
B
Mild steel burglar proofing grille in heavy gauge sections bent
and welded into an approved pattern including priming, fixing
and finishing to Architect's detail (provisional)
6mm Thick clear sheet glass and glazing to steel casement
window with and including linseed putty; in
C
Panes of various sizes
6mm Thick obscured sheet glass and glazing to steel
casement window with and including linseed putty; in
D
Panes of various sizes
Prepare metal surfaces; apply undercoat and two finishing
coats first grade eggshell paint; as "Crown paints" or other
equal approved metallic paint on metal surfaces to
E
F
General surfaces; window and
internally (measured flat overall)
burglarproofing
grilles
General surfaces; windows externally (measured flat overall)
Carried to collection
COLLECTION
From Page 2/11
From Above
TOTAL OF WINDOWS
Carried to Summary of Bill No. 2
Bill No. 2
Main House
2/12
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 6
DOORS
Aluminium Doors
Supply and fix anodised Aluminium doors; 100x50mm frames
including all necessary glazing beadings, opening
accessories, sliding gear where necessary, infilled with and
including 6mm thick tinted glass, oiling and adjusting on
completion;
A
Door size 1200 x 2400mm high in two leaves, a fanlight
300mm high; c/w all necessary ironmongery
6
No
33
No
3
No
20
No
Panel Doors
Wrot mahogany panel doors
B
C
45mm Thick solid panel single leaf door overall size 900 x
2550mm high comprising 150 x 50mm rebated stiles, middle
rails, 100 x 50mm bottom and top rails and infilled with
moulded solid hardwood panels; all framed and finished to
Architect's detail
Ditto double leaf door overall size 1500 x 2400mm high ditto
Flush Doors
45mm Thick door with mahogany veeneer; hardwood lipped
edges; moulded beading to both sides;
D
900 x 2100mm high; semi-solid cored flush door
Frames selected; in wrot mahogany
E
225x50mm with two labours
307
Lm
F
Ditto rebated transome with two labours
18
Lm
G
60x20mm Ditto moulded architraves
614
Lm
H
60x15mm Ditto glazing beading
37
Lm
Carried to collection
Bill No. 2
Main House
2/13
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Doors (cont'd)
A
Pelmet box; 100x25mm top, 125x25mm moulded fascia,
50x25mm cypress bearer and 100x125x25mm blocked ends
including double heavy duty aluminium curtain rail as "Silent
Gliss" complete with rollers and fixing brackets
30
Lm
Three lever mortice lock; rebated and complete with a set of
brass lever handle furniture fixed to timber door
3
No
Two lever mortice lock; rebated and complete with a set of
brass lever handle furniture fixed to timber door
33
No
Two lever mortice lock; complete with a set of brass lever
handle furniture fixed to timber door
20
No
38mm diameter rubber door stops No. 8400 to concrete or
blockwork fixing with screws; plugging
71
No
F
100 mm Long brass butt hinges
89
Prs
G
Approved door closers
8
No
H
Approved stainless steel door pull handles
6
No
I
800 x 200mm High aluminium kick plate
10
No
J
Provide the Provisional Sum of One Hundred Thousand for
(100,000/=) Special Ironmongery to be omitted or expended
in whole or in part at the discretion of the Architect
Ironmongery
Supply and fix English "Union" or other equal approved
ironmongery; matching screws; locks to include a set of 3
keys,
B
C
D
E
Item
Sum
100,000.00
Glass
K
L
4mm Thick clear sheet glass in 0.1 to 0.5m2 panes and
glazing to timber with beads (m/s)
8
Sm
12mm Thick anti-bandit glass panes and glazing to timber
with beads (m/s)
3
Sm
Carried to collection
Bill No. 2
Main House
2/14
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Painting and Decorating
One undercoat two finishing coats clear polyurethane
varnish; to Basco duracoat paints or equal and approved on
wood surfaces
A
General surfaces of doors
222
Sm
B
Not exceeding 200 - 300mm girth internal
19
Lm
C
Prepare and prime back of frame before fixing
306
Lm
Carried to collection
COLLECTION
From Page 2/13
From Page 2/14
From Above
TOTAL OF DOORS
Carried to Summary of Bill No 2
Bill No. 2
Main House
2/15
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 7
FINISHES
Floor Finishings
Cement and sand (1:4) screed to floor: in
A
32mm Thick finished to receive ceramic tiles
234
Sm
B
25mm Thick finished to receive wood blocks
772
Sm
C
25mm Thick finished to receive rubber tiles
30
Sm
D
40mm Thick paving finished smooth with steel trowel to
receive carpet
101
Sm
300 x 300 x 8mm Approved coloured NON-SLIP glazed
ceramic floor tiles as 'Saj Ceramics' or other equal and
approved; to regular pattern; grouting joints in matching
cement; to
E
Floors; on level screed (m/s)
234
Sm
F
100mm High skirting
352
Lm
G
Ditto skirting; but curved on plan
31
Lm
772
Sm
20mm Thick approved Wood block flooring in wrought
hardwood; on screed backing, with approved adhesive; to
regular pattern; including machine sanding to
H
Floors; on level screed (m/s)
Wrot mahogany; prime grade; 25mm thick skirting; one
rounded junction with wall finish; one coved junction with floor
finish; counter sinking and flush pelleting
I
100mm High skirting
590
Lm
J
Ditto skirting; but curved on plan
100
Lm
772
Sm
Prepare surfaces; one coat multi purpose PVA clear sealer;
three coats gloss two pack epoxy varnish in "Crown paint" or
equal approved; on wood to
K
Wood block floor finish; surfaces generally
Carried to collection
Bill No. 2
Main House
2/16
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
A
Qnty Unit
Skirting over 100 but not exceeding 200mm girth
690
Lm
30
Sm
22
Lm
101
Sm
100 x 25mm skirting; one rounded junction with wall finish;
one coved junction with floor finish; counter sinking and flush
pelleting
68
Lm
Ditto 100mm high skirting; curved on plan
7
Lm
75
Lm
577
Sm
100
Sm
Rate
Amount
Specialized Rubber Tiles
Allow a Prime Cost rate of Kshs. 6,000 per square metre
inclusive of VAT for purchase; include rate for take delivery
and fix only to
B
Floors; on level screed (m/s) with approved adhesive
Wrot mahogany; prime grade
E
100 x 25mm skirting; one rounded junction with wall finish;
one coved junction with floor finish; counter sinking and flush
pelleting
Carpet
Allow a Prime Cost rate of Kshs. 6,000 per square metre
inclusive of VAT for purchase; include rate for take delivery
and fix only to
D
Floors; on level screed (m/s) with approved adhesive
Wrot mahogany; prime grade
E
F
Prepare surfaces; one coat multi purpose PVA clear sealer;
three coats gloss oil paint in "Crown paints" or other and
equal approved; on wood to
G
Skirting over 100 but not exceeding 200mm girth
Wall Finishes Externally
Cement and sand plaster, as described finished with wood
float to
H
Wall surfaces to receive paint; 15mm thick
Prepare and apply Duracoat 100% pure Acrylic outdoor
protector paint in accordance with the manufacturer's
instructions to:
I
Rendered wall surfaces externally (Provisional)
Carried to Collection
Bill No. 2
Main House
2/17
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
A
B
Qnty Unit
Supply and fix approved precisely cut mazeras slates
cladding; approved pattern to walls including backing
118
Sm
Prepare surfaces and apply Wall Master by an approved
Supplier
477
Sm
34
Sm
34
Sm
1,996
Sm
1,996
Sm
672
Sm
672
Sm
360
Sm
Rate
Amount
Wall Cladding
Selected smooth facing brick walling in cement/sand (1:3)
mortar and grouted up;pointed with neat recessed joints to
C
50mm Thick walling externally
Prepare, touch up one skim coat and two misty universal
undercoat and apply two coats of weather resistant exterior
brick paint in accordance with the manufacturer's instructions
to:
D
Surfaces of brick wall cladding externally
Wall Finishes Internally
12mm Thick plaster in cement/sand floated with a steel
trowel; to block walls and concrete surfaces in:-
E
Wall surfaces internally
Prepare surfaces and apply undercoat and two finishing
coats of silk vinyl emulsion paint on plastered masonry or
concrete surfaces in:-
F
Wall surfaces internally
12 mm cement and sand backing to
G
Receive wall tiles
6mm Thick coloured glazed ceramic tiles from 'Tile and
Carpet' to regular pattern; bedding and jointing in cement
mortar (1:4) grouting joints with matching cement
H
To wall; grouting edges with matching cement
Ceiling Finishes
I
12mm Thick gypsum boards on and including 50x50mm
treated cypress brandering on at 600mm centres both ways
Carried to Collection
Bill No. 2
Main House
2/18
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Description
A
Ditto but suspended on and including 16mm diameter bars
support system, complete including all decorative moulding,
curved cutting, etc. to Architect's detail
B
Qnty Unit
100mm Moulded gypsum cornice (provisional)
712
Sm
1,147
Lm
Rate
Amount
Prepare surfaces and apply undercoat and two finishing
coats plastic emulsion paint as "Crown Paints" or other equal
approved on plastered masonry or concrete surfaces; to
C
Gypsum plasterboard ceiling surfaces
1,072
Sm
D
100mm Moulded gypsum cornice (provisional)
1,147
Lm
36
Sm
Staircase Finishes
Cement and sand (1:4) screed to landing; in
E
25mm Thick finished to receive wood blocks
20mm Thick approved Wood block flooring as before
described
F
Floors; on level screed (m/s)
36
Sm
G
Ditto to 250mm wide treads
120
Lm
H
Ditto to 150mm high risers with rounded top and coved at
junctions
126
Lm
Ditto to open string average 325mm wide
13
Lm
48
Lm
I
Staircase Balustrading
J
900mm High balustrading comprising 75mm diameter
stainless steel handrail on 50mmx50mm SHS stainless steel
moulded balusters at approximately 250mm centres; 6No
middle rails; to profile of staircase; all to detail - see Appendix
K
Ditto but curved on plan
44
Lm
L
75mm Diameter polished brass handrail; including curved
sections fixed to wall with and including 25mm diameter
stainless steel brackets 50mm long grouted to wall
95
Lm
Carried to Collection
Bill No. 2
Main House
2/19
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Balcony Balustrading
A
900mm High balustrading comprising 75mm diameter
stainless steel handrail on 50mmx50mm SHS stainless steel
moulded balusters at approximately 250mm centres; 6No
middle rails; to profile of staircase; all to detail - see Appendix
10
Lm
B
Ditto but curved on plan
41
Lm
C
75mm Diameter polished brass handrail; including curved
sections fixed to wall with and including 25mm diameter
stainless steel brackets 50mm long grouted to wall
51
Lm
Carried to collection
COLLECTION
From page 2/16
From page 2/17
From page 2/18
From page 2/19
From Above
TOTAL OF FINISHES
Carried to Summary of Bill No 2
Bill No. 2
Main House
2/20
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 8
JOINERY FITTINGS AND FIXTURES
Kitchen Worktops and Cabinets
A
B
Provide the Provisional Sum of Kshs. Six Hundred Thousand
(600,000/=) only for Kitchen Worktops and Cabinets to be
omitted or expended in whole or in part at the discretion of the
Architect
Item
600,000.00
Item
500,000.00
Provide the Provisional Sum of Kshs. Five Hundred Thousand
(500,000/=) only for Wardrobes to be omitted or expended in
whole or in part at the discretion of the Architect
Plinths for Kitchen Cabinets and Wardrobes
C
100mm Thick mass concrete mix 1:3:6 in plinth
36
Sm
D
Formwork to edges of slab 75 - 150mm high
60
Lm
E
15mm cement screed floor on plinth top and sides finished
smooth with trowel
36
Sm
Allow for Builders work, Profit and attendance in connection
with Joinery Fittings
Item
F
Sauna
G
Provide for seats/benches in wrot cedar slats 50x50mm with
two labours, bearers and legs overall 11,000x1200mm wide x
450mm high
1
No
Wash Hand Basin Vanity tops overall size 3000x500mm wide;
50mm thick concrete worktop finished with granite top and
fascia; all with beveled edges
1
No
Ditto but size 1500x500mm wide
4
No
Bathrooms
H
I
TOTAL OF JOINERY FITTINGS
Carried to Summary of Bill No 2
Bill No. 2
Main House
2/21
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
ELEMENT NO. 9
ENTRANCE CANOPIES
Substructures (All Provisional)
The quantities and nature of work indicated are provisional.
The actual quantities of work done shall be ascertained,
valued and adjustments made accordingly.
Excavation and Earthworks
A
B
Excavate to reduce levels not exceeding 1.50 metres deep
from stripped levels
66
Cm
Excavate for column bases not exceeding 1.50 metres deep
from stripped levels
3
Cm
Well rammed and consolidated under floors to the approval of
the Engineer
54
Cm
50mm Thick quarry dust blinding
82
Sm
69
Cm
40
Sm
3
Sm
Selected imported hardcore filling compacted in layers not
exceeding 150mm deep
C
D
Disposal of excavated materials
E
Load and cart away surplus excavated materials
Anti-termite treatment
F
Approved Chemical anti-termite treatment executed under a
ten(10) year guarantee
Plain concrete class 15/20
G
50mm Thick blinding concrete under column bases
Insitu concrete grade 20/20 including vibrating around
reinforcement in
H
Column bases
2
Cm
I
Columns
1
Cm
J
150mm Thick floor slab including jointing to existing slab as
necessary
24
Sm
150mm Thick ramp with tamped finish
2
Sm
K
Carried to collection
Bill No. 2
Main House
2/22
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
High tensile steel reinforcement to B.S 4449 and 4466
A
Assorted bars
300
Kg
B
Mesh reinforcement ref A142 or equal and approved
reinforcement in concrete slab including all necessary tying
and support (No allowance for laps)
82
Sm
82
Sm
Damp proofing membrane
C
1000 Gauge polythene sheeting laid on blinded hardcore
including all necessary laps
Sawn Formwork to: -
D
Edges of floor slab 225 - 300mm high
19
Lm
E
Sides of column bases and columns
10
Sm
Superstructure
Insitu vibrated concrete as before described in;
F
Steps
2
Cm
G
Columns
2
Cm
H
Gutter beams
2
Cm
1,500
Kg
Steel reinforcement as before described
I
Assorted bars
Sawn Formwork to: -
J
Sides of ramp
1
Sm
K
Columns curved on plan
9
Sm
L
Sides and soffits of gutter beams
95
Sm
M
Edge of risers 150 - 225mm wide
15
Lm
N
Open string extreme width 330mm
1
Lm
28
Lm
Precast Concrete Coping
O
300 x 75mm Average thick precast concrete coping tapered;
bedded and pointed in cement and sand (1:4) mortar
(provisional)
Carried to collection
Bill No. 2
Main House
2/23
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
Roof Construction and Covering
A
Perspex waterproof cover supplied by an approved specialist
28
Sm
50x50x3mm RHS curved girders spray painted to the
approval of the Architect
81
Lm
25x25x2mm RHS struts spray painted to the approval of the
Architect
42
Lm
75mm Diamenter PVC rain water downpipe; in columns
including bends and other fittings
7
Lm
E
Approved cast iron fulbora; 100mm diameter
2
No
F
Approved EPDM membrane or other equal and approved
waterproofing to screeded surfaces of gutters; all applied in
accordance with manufacturer's instructions
42
Sm
25mm cement/sand screed protection over waterproofing laid
to slope
42
Sm
25
Sm
22
Sm
25
Sm
22
Sm
The following in mild steel to BS5950; all welding to BS5135,
Grade 4.6 bolts and nuts to BS4360; making small holes;
priming and connections to the approval of the Engineer
B
C
Rainwater Goods
D
G
Finishes
Cement and sand (1:4) screed to floors: in
H
32mm Thick finished to receive ceramic tiles
Cement and sand plaster, as described finished with wood
float to
I
Wall surfaces to receive paint; 15mm thick
Approved coloured NON-SLIP glazed ceramic floor tiles as
'Saj Ceramics' or other equal and approved; to regular
pattern; grouting joints in matching cement; to
J
Floors; on level screed (m/s)
Painting and decorating
K
Wall Master rendering to masonry or concrete surfaces
Carried to Collection
Bill No. 2
Main House
2/24
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
COLLECTION
From Page 2/22
From Page 2/23
From Page 2/24
SUB-TOTAL FOR ONE (1) NO. CANOPY
TOTAL FOR 3NO. ENTRANCE CANOPIES
Carried to Main Summary
Bill No. 2
Main House
2/25
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qnty Unit
Rate
Amount
SUMMARY
BILL NO. 2
MAIN BUILDING BLOCK
From
Page
1
SUBSTRUCTURES
2/4
2
R. C SUPERSTRUCTURE
2/6
3
WALLING
2/8
4
ROOF CONSTRUCTION AND COVERING
2/10
5
WINDOWS
2/12
6
DOORS
2/15
7
FINISHES
2/20
8
JOINERY FITTINGS AND FIXTURES
2/21
9
ENTRANCE CANOPIES
2/25
TOTAL OF MAIN BUILDING BLOCK
CARRIED TO MAIN SUMMARY
Bill No. 2
Main House
2/26
Constingconsult Ltd
Quantity Surveyors
BILL NO. THREE (3)
DOMESTIC SERVANT QUARTERS
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Qty
Unit
Excavate oversite average 150mm deep to remove vegetable
soil cart and deposit in spoil heaps on site as directed
109
Sm
Excavate to reduce levels not exceeding 1.50 metres deep
from stripped levels
66
Cm
C
Ditto for wall foundation ditto.
48
Cm
D
Extra over excavation for excavating at any point in rock (no
blasting allowed)
4
Cm
Description
Rate
Amount
ELEMENT NO. 1
SUBSTRUCTURES
All Provisional
The quantities and nature of work indicated are provisional.
The actual work done shall be ascertained, valued and
adjustments made accordingly. Work measured upto and
including ground floor slab.
Excavation and Earthworks
A
B
Planking and strutting
E
Allow for maintaining and supporting sides of excavations by
provision of planking and strutting and for keeping the same
free from fallen materials.
Item
Sum
Item
Sum
Keeping excavations free of water
F
Allow for keeping excavations free of water (except spring or
running water) and mud by pumping, baling or other approved
means
Fillings
Selected excavated materials compacted in layers not
exceeding 300mm deep: all to the approval of the Engineer
G
31
Cm
Well rammed and consolidated under floors to the approval of
the Engineer
76
Cm
50mm Thick quarry dust blinding
82
Sm
Around foundations
Selected imported hardcore filling compacted in layers not
exceeding 150mm deep: all to the approval of the Engineer
H
I
Carried to collection
Bill No. 3
Servant Quarters
3/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Disposal of excavated materials
A
Load and cart away surplus excavated material from the site as
directed by the Architect
87
Cm
100
Sm
49
Sm
Anti-termite treatment
B
Chemical anti-termite treatment executed complete by an
approved specialist under a ten(10) year guarantee to surfaces
of excavations
Concrete Work
C
50mm Thick blinding concrete; plain mix 1:4:8 under wall
foundation
Reinforced concrete
Insitu concrete grade 20/20 including vibrating around
reinforcement in
D
Wall foundation
10
Cm
E
150mm Thick floor slab
98
Sm
Reinforcement
High tensile steel reinforcemnt to B.S 4449 and 4466
F
8mm Diameter bars
156
Kg
G
10mm Ditto
344
Kg
H
Mesh reinforcement ref A142 or equal and approved
reinforcement in concrete slab including all necessary tying
and support (No allowance for laps)
98
Sm
Sawn Formwork to: A
Vertical sides of wall foundation
32
Sm
B
Edges of slab 75 - 150mm wide
55
Lm
98
Sm
137
Sm
Damp proof membrane
C
1000 gauge polythene or other equal and approved damp proof
membrane laid under surface bed; 300mm side and end laps
Load bearing approved natural stone walling, chisel dressed;
jointed in cement and sand (1:3) mortar
D
200mm Thick walling
Carried to collection
Bill No. 3
Servant Quarters
3/2
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Plinths
E
12mm Thick cement/sand (1:4) render to plinths
17
Sm
F
Approved bituminous paint to rendered surfaces
17
Sm
Carried to collection
COLLECTION
From Page 3/1
From Page 3/2
From Above
TOTAL OF SUBSTRUCTURES
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/3
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 2
REINFORCED CONCRETE SUPERSTRUCTURE
Vibrated Reinforced Concrete
Insitu concrete grade 20/20 including vibrating around
reinforcement.
A
Beams
7
Cm
B
Gutter beams
5
Cm
C
Columns
1
Cm
Reinforcement
High tensile steel reinforcement to B.S 4449 and B.S 4466
D
8mm Diameter bar
829
Kg
E
12mm Diameter bar
1,121
Kg
138
Sm
3
Sm
Formwork
Sawn Formwork to: F
Sides and soffites of beams
G
Sides of columns; curved on plan
TOTAL OF R.C. SUPERSTRUCTURE
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/4
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 3
WALLING
External Walls
Bituminous based damp proof course
A
200mm wide
71
Lm
Selected cut and natural colour quarry stone walling bedded
and jointed in cement and sand (1:4) mortar; both sides
finished to receive plaster
B
200mm Thick walling
109
Sm
C
Extra over external stone wall for bush hammered coynes to
edges in alternating lengths of 200 and 100mm on both sides
of the edge
33
Lm
58
Sm
Internal Walls
Machine cut natural stone walling bedded and jointed in
cement/sand (1:4) mortar; raking where necessary
D
200mm Thick walling
TOTAL OF WALLING
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/5
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 4
ROOF CONSTRUCTION AND COVERING
Sawn cypress;second grade; clean; well seasoned and treated
with approved wood preservative; pressure- impregnated with
celcure 'A' with and including all jointing and connections
(packing piece, bolts etc) as necessary; in roof approximately
3,200mm high.
The following in trusses and/or independent members
A
150 x 50mm Rafters
318
Lm
B
Ditto ceiling joists
93
Lm
C
Ditto purlins
92
Lm
D
Ditto ridges
12
Lm
E
100x50mm Struts
202
Lm
F
100 x 50mm Wall plate; fixed to concrete or masonry with and
including approved bolts at 1000mm centres
51
Lm
ROOF COVERING
Decra roofing tiles supplied by Space and Style (k) ltd or other
equal and approved; laid and fixed in accordance with the
manufacturer's instructions and to Architect's approval
G
Roof covering including all necessary fixtures
146
Sm
H
Ridge or hip covering
58
Lm
I
Galvanized metal sheet valley flashings; 26 gauge; 450mm
wide; bending one edge build into wall and grouting to
Architect's approval
9
Lm
2
No
100x100mm Rain water downpipe; holderbats at 1500mm
(maximum) centres
18
Lm
Extra over ditto for 800 mm swan neck offset
6
No
Roof Vents
J
Roof vent, triangular in shape comprising 100x50mm treated
cypress framing and t&g boarding overall size 2000x800mm
high
Rainwater Goods
Prepainted galvanized metal; 18 gauge
K
L
Carried to Collection
Bill No. 3
Servant Quarters
3/6
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
Ditto for shoe
6
No
42
Sm
42
Sm
Waterproofing to RC gutters (PROVISIONAL)
B
4mm Thick APP waterproofing membrane laid in accordance
with the manufacturer's specifications to slope including
dressing up as skirting 200mm high, 15mm thick cement/sand
backing and all necessary outlets and sleeves
Eaves covering (provisional)
E
25mm Thick first grade cypress t&g to eaves; nailed on and
including 50 x 50mm brandering at 600mm centres both ways
Prepare surfaces and apply undercoat and two finishing coats
of approved wood varnish; to
F
General surfaces
42
Sm
G
uPVC fascia or berge board as from Space and Style Ltd fixed
in accordance with the manufacturer's instructions
17
Lm
Carried to Collection
COLLECTION
From Page 3/6
From Above
TOTAL OF ROOF CONSTRUCTION AND COVERING
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/7
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 5
WINDOWS
Approved red clay tile cill; bedded and jointed in cement/sand
(1:3) mortar; pointed in matching coloured cement.
A
150 x 100 x 25mm Thick cill
12
Lm
8
Lm
8
Lm
Window board
B
125 x 25mm Wrot mahogany window board, moulded
Prepare surfaces; apply undercoat and two finishing coats
polyurethane varnish on wood surfaces: to
C
Surfaces over 100 but not exceeding 200mm wide
Supply, assemble and fix the following purpose-made "Z"
section steel casemnt windows to comply to B.S. 990,
obtained from an approved manufacturer, primed with red
oxide primer before delivery to site complete with hinges,
handles, catches and building in lugs
D
Window size 1500 x 1500mm high overall
1
No
E
Window size 600 x 900mm high overall
1
No
13
Sm
3
Sm
General surfaces; window and burglarproofing grilles internally
(measured flat overall)
16
Sm
General surfaces; windows externally ditto
16
Sm
Glazing
4mm Thick clear sheet glass and glazing to steel casement
window with and including linseed putty;
F
In panes; various sizes
5mm Thick obscured sheet glass and glazing to steel
casement window with and including linseed putty;
G
In panes; various sizes
Prepare surfaces; apply undercoat and two finishing coats first
grade eggshell paint on metal surfaces to
H
I
TOTAL OF WINDOWS
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/8
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 6
DOORS
Panel doors
A
45mm Thick solid mahogany panel door overall size 950 x
2100mm high comprising 100 x 45mm rebated stiles, middle
and top rails, 150 x 45mm bottom rail and infilled with moulded
solid panels all framed and fixed together and finished to
architects satisfaction
2
No
900 x 2100mm Door; solid cored with thin aluminium metal
sheet flashing internally
2
No
800 x 2050mm Door; semi-solid cored
2
No
Flush doors
45mm Thick mahogany veneer faced flush door; hardwood
lipped edges; with planted moulding to architects details
B
C
Wrot mahogany; prime grade; three labours
D
225 x 50mm Door frame; rebated; plugged
11
Lm
E
125 x 50mm Door frame; rebated; plugged
21
Lm
F
38 x 25mm architrave
32
Lm
G
20mm Quadrant
32
Lm
Prepare surfaces and apply one coat (undercoat) and two
coats first grade clear polyurethane varnish as "Crown paints"
or other equal approved; on wood surfaces to
H
Door; general surfaces
23
Sm
I
Surfaces over 200mm but not exceeding 300mm girth; frame;
architrave and quadrant
32
Lm
2
No
Ironmongery
Supply and fix English "Union" or other equal approved
ironmongery; matching screws; locks to include a set of 3
keys, catalogue numbers refer to the "Union catalogue issued
by "Josiah parkes & Sons limited" of the United Kingdom;
available from their authorized local dealers
J
Three lever mortice lock; complete with a set of brass lever
handle furniture fixed to timber door
Carried to Collection
Bill No. 3
Servant Quarters
3/9
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
B
C
Two lever mortice lock; complete with a set of brass lever
handle furniture fixed to timber door
4
No
38mm diameter rubber door stops No. 8400 to concrete or
blockwork fixing with screws; plugging
6
No
100 mm Long brass butt hinges
9
Prs
Carried to collection
COLLECTION
From Page 3/9
From Above
TOTAL OF DOORS
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/10
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 7
FINISHES
Floor Finishings
Cement and sand (1:4) screed to floor: in
A
32mm Thick finished to receive ceramic tiles
82
Sm
Allow a prime cost rate of Kshs. 1,200 per square metre
inclusive of VAT for purchase; include rate for take delivery
and fix only
B
Floor tiles; on level screed (m/s)
82
Sm
C
100mm High skirting
71
Lm
41
Sm
41
Sm
216
Sm
216
Sm
125
Sm
Wall finishes
Cement and sand (1:4) to walls in
D
12mm Thick render to receive ceramic tiles
300 x 250 x 6mm Coloured glazed ceramic tiles as 'Saj
Ceramics' to regular pattern; bedding and jointing in cement
mortar (1:4) grouting joints with matching cement
E
To wall; grouting edges
Plaster 9mm first coat of cement/lime putty/sand (1:2:9):3mm
second coat of cement/lime putty/sand (1:1:6): steel troweled;
on masonry or concrete: to
F
Walls; internally
Prepare surfaces and apply undercoat and two finishing coats
silk vinyl emulsion paint as "Crown Paints" or other equal
approved on plastered masonry or concrete surfaces: to
G
Walls: internally
External Wall Finishes
Cement and sand (1:4) to walls in
H
12mm Thick render to walls externally
Carried to Collection
Bill No. 3
Servant Quarters
3/11
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Prepare surfaces and apply textured wall finish as "RUFF N'
TUFF" from Crown-Berger (K) Ltd on plastered masonry or
concrete surfaces: to
A
Rendered walls; externally
B
Supply and fix approved precisely cut mazeras slates cladding;
approved pattern to walls including backing (Provisional)
125
Sm
30
Sm
98
Lm
82
Sm
Ceiling Finishes
Mahogany; wrot; well seasoned; cellcured; selected and kept
clean
C
75x75mm Moulded cornice
D
25mm Thick first grade cypress t&g to eaves; nailed on and
including 50 x 50mm brandering at 600mm centres both ways
Prepare surfaces and apply one coat (undercoat) and two
coats first grade clear polyurethane varnish as "Crown Paints"
or other equal approved; on wood surfaces; to
E
Cornices; surfaces not exceeding 100mm girth
98
Lm
F
Ceilings, general surfaces
82
Sm
Carried to Collection
COLLECTION
From page 3/11
From Above
TOTAL FOR FINISHES
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/12
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 8
JOINERY FIXTURES
The following in 2No. Kitchen worktop and low level cupboards
overall size 2500mm girth x 600mm wide x 850mm high
A
100mm Thick concrete block (dwarf) wall
2
Sm
B
100mm Thick concrete 1:3:6 in plinth.
3
Sm
C
75mm Thick reinforced concrete 1:2:4 in worktop including
forming opening for double sink.
3
Sm
D
BRC mesh type A65 reinforcement in top
3
Sm
E
Formwork to soffites of worktop.
3
Sm
F
Ditto edge of slab 75 - 150mm high.
5
Lm
G
12mm cement screed floor on plinth including sides
3
Sm
H
12mm Thick plaster to walls
4
Sm
I
Prepare and apply three coats oil paint general surface
4
Sm
J
20mm Thick granite slab on worktop and fascia including
backing
3
Sm
Wrot cypress
K
50 x 25mm Rebated frame
6
Lm
L
50 x 25mm Bearers
18
Lm
M
50 x 20mm Lipping
6
Lm
1
Lm
25mm Thick blockboard; exposed edges hardwood lipped
N
In 125mm wide fascia, faced one side with mahogany veneer
O
In shelving
3
Sm
P
In partitions
1
Sm
Q
25mm Thick door size 325 x 550mm high with lipped edges
and faced on one side with mahogany veneer.
12
No
Carried to Collection
Bill No. 3
Servant Quarters
3/13
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
25mm Thick blockboard drawer size 325 x 475 x 125mm deep
comprising of 25mm thick mahogany veneer faced blockboard
front, blockboard sides and 6mm thick plywood bottom all
blocked together including 19mm cypress runners on both
sides.
10
No
B
12mm Wide brass piano hinges
7
Lm
C
Brass drawer knobs
10
No
D
75mm Brass cupboard door handle
12
No
E
50mm aluminium tower bolt
6
Prs
F
Approved Ball catch
6
No
G
Brass cupboard door locks
6
No
H
Prepare and apply three coats of oil paint to general surfaces
of wood
8
Sm
I
Ditto surfaces 100 - 200mm girth.
5
Lm
J
Prepare and apply three coats wood varnish on general
surfaces of wood
5
Sm
22
Lm
The following in high level cupboards
K
50 x 25mm bearers
25mm Thick blockboard; exposed edges hardwood lipped
L
Bottom, top and shelves
4
Sm
M
Sides and divisions
2
Sm
N
Door size 300 x 600mm high one side faced with mahogany
veneer; edges hardwood lipped and 15mm planted quadrant
moulding
12
No
O
15mm Wrot mahogany quadrant beading
7
Lm
P
Brass piano hinges
7
Lm
Q
Brass pull handles; 50mm long
12
No
R
Ball catch
12
No
S
Prepare and apply three coats of gloss oil paint to general
wood surfaces
11
Sm
Ditto wood varnish ditto
2
Sm
T
Carried to Collection
Bill No. 3
Servant Quarters
3/14
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Wardrobes
The following in 2No. Wardrobes average size 2000 x 600 x
2750mm high
A
100mm Thick concrete 1:3:6 plinth
B
12mm Thick cement and sand screed finished with steel trowel
3
Sm
3
Sm
In Wrot cypress
C
75 x 50mm Rebated frames
10
Lm
D
75 x 25m Plinth lipping
4
Lm
E
50 x 50mm Rebated frame
14
Lm
F
50 x 25mm Bearers
14
Lm
G
25mm quadrant beading
10
Lm
H
38 x 20mm Architrave
6
Lm
25mm Thick blockboard with all exposed edges hardwood
lipped in
I
Bottom
3
Sm
J
Sides and divisions
6
Sm
K
Shelves
4
Sm
L
Door size 650 x 1980mm high one side faced with mahogany
veneer; with 1No. 30mm diameter plastic vent and 15mm
quadrant moulding
6
No
M
Ditto door size 650 x 450mm high ditto
6
No
N
25mm Thick blockboard drawer size 650 x 550 x 200mm deep
comprising 650 x 25mm front and back, 550 x 25mm sides and
6mm thick plywood bottom all blocked together including pull
groves to front panel
6
No
Ironmongery
O
Brass piano hinges
8
Lm
P
Brass cupboard door locks
4
No
Q
Brass door knobs
12
No
R
75 mm Aluminium tower bolt
4
No
Carried to Collection
Bill No. 3
Servant Quarters
3/15
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
Approved ball catch
6
No
B
19mm Diameter brass plated hanging rail 2000mm long
complete with fixing brackets
2
No
Prepare and apply three coats gloss oil paint on general
surfaces
33
Sm
D
Ditto but wood varnish ditto.
10
Sm
E
Ditto but surfaces 200 - 300mm girth
18
Lm
C
End of 2No Wardrobes
Carried to Collection
COLLECTION
From Page 3/13
From Page 3/14
From Page 3/15
From Above
TOTAL FOR JOINERY FITTINGS
Carried to Summary of Bill No. 3
Bill No. 3
Servant Quarters
3/16
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BILL NO. 3
DOMESTIC SERVANT QUARTERS
SUMMARY
From
page
1
SUBSTRUCTURES
3/3
2
R. C SUPERSTRUCTURE
3/4
3
WALLING
3/5
4
ROOF CONSTRUCTION AND COVERING
3/7
5
WINDOWS
3/8
6
DOORS
3/10
7
FINISHES
3/12
8
JOINERY FITTINGS
3/16
SUB-TOTAL FOR ONE (1) NO. DSQ
x2
TOTAL FOR 2 NO. SERVANT QUARTERS
Carried to Main Summary
Bill No. 3
Servant Quarters
3/17
Constingconsult Ltd
Quantity Surveyors
BILL NO. FOUR (4)
CHANGING ROOMS
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Qty
Unit
Excavate oversite average 150mm deep to remove vegetable
soil cart and deposit in spoil heaps on site as directed
76
Sm
Excavate to reduce levels not exceeding 1.50 metres deep
from stripped levels
46
Cm
C
Ditto for wall foundation ditto.
60
Cm
D
Extra over excavation for excavating at any point in rock (no
blasting allowed)
8
Cm
Description
Rate
Amount
ELEMENT NO. 1
SUBSTRUCTURES
All Provisional
The quantities and nature of work indicated are provisional.
The actual work done shall be ascertained, valued and
adjustments made accordingly. Work measured upto and
including ground floor slab.
Excavation and earthworks
A
B
Planking and strutting
E
Allow for maintaining and supporting sides of excavations by
provision of planking and strutting and for keeping the same
free from fallen materials.
Item
Sum
Item
Sum
Keeping excavations free of water
F
Allow for keeping excavations free of water and mud by
pumping, baling or other approved means
Fillings
Selected excavated materials compacted in layers not
exceeding 300mm deep: all to the approval of the Engineer
G
Around foundations
33
Cm
300mm Thick well rammed and consolidated under floors to
the approval of the Engineer
42
Sm
50mm Thick quarry dust blinding
42
Sm
Selected imported hardcore filling compacted in layers not
exceeding 150mm deep: all to the approval of the Engineer
H
I
Carried to collection
Bill No. 4
Changing Rooms
4/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Disposal of excavated materials
A
Load and cart away surplus excavated material from the site
as directed by the Architect
73
Cm
80
Sm
36
Sm
Anti-termite treatment
B
Chemical anti-termite treatment executed complete by an
approved specialist under a ten(10) year guarantee to
surfaces of excavations
Concrete Work
C
50mm Thick blinding concrete; plain mix 1:4:8 under wall
foundation, column base and base slab
Reinforced concrete
Insitu concrete grade 20/20 including vibrating around
reinforcement in
D
Wall foundation
8
Cm
E
150mm Thick floor slab
67
Sm
F
Extra over slab for thicknessing size 400mm wide x 100mm
thick including forming sinking in hardcore
6
Lm
Reinforcement
High tensile steel reinforcemnt to B.S 4449 and 4466
G
8mm Diameter bars
78
Kg
H
10mm Ditto
288
Kg
I
Mesh reinforcement ref A142 or equal and approved
reinforcement in concrete slab including all necessary tying
and support (No allowance for laps)
67
Sm
Sawn Formwork to: J
Vertical sides of wall foundation
19
Sm
K
Edges of slab 75 - 150mm wide
32
Lm
67
Sm
Damp proof membrane
L
1000 gauge polythene or other equal and approved damp
proof membrane laid under surface bed; 300mm side and end
laps
Carried to collection
Bill No. 4
Changing Rooms
4/2
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Load bearing approved natural stone walling, chisel dressed;
jointed in cement and sand (1:3) mortar
A
200mm Thick walling
101
Sm
Plinths
B
12mm Thick cement/sand (1:4) render to plinths
11
Sm
C
Approved bituminous paint to rendered surfaces
11
Sm
Carried to collection
COLLECTION
From Page 4/1
From Page 4/2
From Above
TOTAL OF SUBSTRUCTURES
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/3
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 2
REINFORCED CONCRETE SUPERSTRUCTURE
Vibrated Reinforced Concrete
Insitu concrete grade 20/20 including vibrating around
reinforcement.
A
Ring beams
4
Cm
Reinforcement
High tensile steel reinforcement to B.S 4449 and B.S 4466
B
8mm Diameter bar
78
Kg
C
12mm Diameter bar
198
Kg
37
Sm
Formwork
Sawn Formwork to: D
Sides and soffites of beams
TOTAL OF REINFORCED CONCRETE SUPERSTRUCTURE
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/4
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 3
WALLING
External Walls
Bituminous based damp proof course
A
100mm Wide
6
Lm
B
200mm wide
46
Lm
101
Sm
Selected cut and natural colour quarry stone walling bedded
and jointed in cement and sand (1:4) mortar; both sides
finished to receive plaster
C
200mm Thick walling
Internal Walls
Machine cut natural stone walling bedded and jointed in
cement/sand (1:4) mortar; raking where necessary
D
100mm Thick walling
15
Sm
E
200mm Thick walling
34
Sm
TOTAL OF WALLING
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/5
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 4
ROOF CONSTRUCTION AND COVERING
Sawn cypress;second grade; clean; well seasoned and
treated with approved wood preservative; pressureimpregnated with celcure 'A' with and including all jointing and
connections (packing piece, bolts etc) as necessary; in roof
approximately 8,500mm high.
The following in trusses and/or independent members
A
100 x 50mm Rafters
187
Lm
B
Ditto ceiling joists
32
Lm
C
Ditto purlins
31
Lm
D
Ditto ridges
11
Lm
E
100x50mm Struts
41
Lm
F
100 x 50mm Wall plate; fixed to concrete or masonry with and
including approved bolts at 1000mm centres
44
Lm
ROOF COVERING
Decra roofing tiles supplied by Space and Style (k) ltd or other
equal and approved; laid and fixed in accordance with the
manufacturer's instructions and to Architect's approval
G
Roof covering including all necessary fixtures
115
Sm
H
Ridge or hip covering
27
Lm
25mm Thick first grade cypress t&g to eaves; nailed on and
including 50 x 50mm brandering at 600mm centres both ways
33
Sm
uPVC fascia or berge board as from Space and Style Ltd fixed
in accordance with the manufacturer's instructions
48
Lm
33
Sm
Eaves covering (provisional)
I
J
Prepare surfaces and apply undercoat and two finishing coats
of approved wood varnish; to
K
General surfaces
Carried to Collection
Bill No. 4
Changing Rooms
4/6
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Rainwater Goods
Prepainted galvanized metal; 18 gauge
A
150 x 150mm Box gutter; fixed to fascia with and including
steel flat brackets at 1500 mm (maximum) centres; holes for
down pipes as necessary; closed ends.
46
Lm
100x100mm Rain water downpipe; holderbats at 1500mm
(maximum) centres
46
Lm
C
Extra over ditto for 800 mm swan neck offset
6
No
D
Ditto for shoe
6
No
B
Carried to Collection
COLLECTION
From Page 4/6
From Above
TOTAL OF ROOF CONSTRUCTION AND COVERING
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/7
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 5
WINDOWS
Approved red clay tile cill; bedded and jointed in cement/sand
(1:3) mortar; pointed in matching coloured cement.
A
150 x 100 x 25mm Thick cill
10
Lm
Supply, assemble and fix the following purpose-made "Z"
section steel casemnt windows to comply to B.S. 990,
obtained from an approved manufacturer, primed with red
oxide primer before delivery to site complete with hinges,
handles, catches and building in lugs
B
Window size 900 x 1200mm high overall
6
No
C
Window size 600 x 900mm high overall
2
No
D
Window size 1600 x 1200mm high overall
2
No
12
Sm
General surfaces; window and burglarproofing grilles internally
(measured flat overall)
12
Sm
General surfaces; windows externally ditto
12
Sm
Glazing
5mm Thick obscured sheet glass and glazing to steel
casement window with and including linseed putty;
E
In panes; various sizes
Prepare surfaces; apply undercoat and two finishing coats
first grade eggshell paint on metal surfaces to
F
G
TOTAL OF WINDOWS
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/8
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 6
DOORS
Mild steel doors
A
Louvred steel casement door overall size 1000x2100mm high
comprising 100x50x3mm thick frames, stiles, middle and top
rails; 200x50x3mm thick rhs bottom rail; 18 gauge louvres;
mosquito gauze on 25x4mm thick flats; all welding; priming
and necessary ironmongery and finishing to Architect's detail
1
No
2
No
4
No
Timber Panel doors
45mm Thick solid panel door; comprising 120 x 45mm rebated
stiles and top rails, 95x45mm middle rails and transomes, 200
x 45mm bottom rail and infilled with moulded solid hardwood
panels all framed together and finished to Architect's detail in:
B
Door size 900x2400mm high
Flush doors
45mm Thick mahogany veneer faced flush door; hardwood
lipped edges; with planted moulding to architects details
C
800x2100mm high; semi-solid cored flush door
Wrot mahogany; prime grade; three labours
D
175 x 50mm Door frame; rebated; plugged
21
Lm
E
225 x 50mm Door frame; rebated; plugged
12
Lm
F
40 x 20mm architrave
33
Lm
Prepare surfaces and apply one coat (undercoat) and two
coats first grade clear polyurethane varnish as "Crown paints"
or other equal approved; on wood surfaces to
G
Door; general surfaces
23
Sm
H
Surfaces over 200mm but not exceeding 300mm girth; frame;
architrave and quadrant
33
Lm
Carried to Collection
Bill No. 4
Changing Rooms
4/9
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Ironmongery
Supply and fix English "Union" or other equal approved
ironmongery; matching screws; locks to include a set of 3
keys, catalogue numbers refer to the "Union catalogue issued
by "Josiah parkes & Sons limited" of the United Kingdom;
available from their authorized local dealers
Two lever mortice lock; complete with a set of brass lever
handle furniture fixed to timber door
4
No
B
Indicator bolts
2
No
C
38mm diameter rubber door stops No. 8400 to concrete or
blockwork fixing with screws; plugging
6
No
100 mm Long brass butt hinges
9
Prs
A
D
Carried to collection
COLLECTION
From Page 4/9
From Above
TOTAL OF DOORS
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/10
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 7
FINISHES
Floor Finishings
Cement and sand (1:4) screed to floor: in
A
32mm Thick finished to receive ceramic tiles
56
Sm
56
Sm
139
Sm
139
Sm
78
Sm
78
Sm
111
Sm
Non-slip Ceramic tile
Supply and fix coloured ceramic tiles as supplied by Tile &
Carpet Centre including matching grout to the approval of the
Architect; to
B
Floors; on level screed (m/s)
Wall finishes
Cement and sand (1:4) to walls in
C
12mm Thick render to receive ceramic tiles
300 x 250 x 6mm Coloured glazed ceramic tiles as 'Saj
Ceramics' to regular pattern; bedding and jointing in cement
mortar (1:4) grouting joints with matching cement
D
To wall; grouting edges
Plaster 9mm first coat of cement/lime putty/sand (1:2:9):3mm
second coat of cement/lime putty/sand (1:1:6): steel troweled;
on masonry or concrete: to
E
Walls; internally
Prepare surfaces and apply undercoat and two finishing coats
silk vinyl emulsion paint as "Crown Paints" or other equal
approved on plastered masonry or concrete surfaces: to
F
Walls: internally
External Wall Finishes
Cement and sand (1:4) to walls in
G
12mm Thick render to walls externally
Carried to Collection
Bill No. 4
Changing Rooms
4/11
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Prepare surfaces and apply textured wall finish as "RUFF N'
TUFF" from Crown-Berger (K) Ltd on plastered masonry or
concrete surfaces: to
A
Rendered walls; externally
B
Extra over external stone wall for bush hammered coynes to
edges in alternating lengths of 200 and 100mm on both sides
of the edge
1,110
Sm
30
Lm
Approved moisture resistant Gypsum board ceiling fixed to
and including brandering
42
Sm
Ditto but moulded cornice
38
Lm
42
Sm
150x150mm Post one end fixed to the ground with purpose
made mild steel shoe bolted to and including concrete base;
overall 3000mm high above floor level
4
No
100x200mm Members finished with polyurethane stain to the
satisfaction of the Architect
38
Lm
Ceiling Finishes
C
D
Prepare and apply undercoat and two finishing coats premium
grade emulsion paint as "Crown Paints" or other equal
approved on gypsum surfaces to
E
Gypsum ceilings, general surfaces
Pergola - Provisional
Treated and well seasoned hardwood timber including all
jointing and anchoring, all in accordance with Architect's
drawings and details
F
G
Carried to Collection
COLLECTION
From page 4/11
From Above
TOTAL FOR FINISHES
Carried to Summary of Bill No. 4
Bill No. 4
Changing Rooms
4/12
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 8
JOINERY FIXTURES
Lockers
A
Provide the Provisional Sum of Kshs. TWO Hundred
Thousand (200,000/=) only for the fabrication, supply and
fixing of Shelves and Lockers to be expended upon the
instructions of the Architect
Item
Sum
200,000.00
Benches
B
Provide for seats/benches overall 2200x450mm wide x
500mm high in wrot cypress slats 75x50mm with two labours
on L-shaped 40x4mm thick angle brackets 300x435mm with a
bracing; bolted to wall all as per drawing in page A.15 in the
Appendix
2
No
TOTAL FOR JOINERY FITTINGS
Carried to Summary of Bill No. 3
Bill No. 4
Changing Rooms
4/13
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BILL NO. 4
CHANGING ROOMS
SUMMARY
From
page
1
SUBSTRUCTURES
4/3
2
R. C SUPERSTRUCTURE
4/4
3
WALLING
4/5
4
ROOF CONSTRUCTION AND COVERING
4/7
5
WINDOWS
4/8
6
DOORS
4/10
7
FINISHES
4/12
8
JOINERY FITTINGS
4/13
TOTAL FOR CHANGING ROOMS
Carried to Main Summary
Bill No. 4
Changing Rooms
4/14
Constingconsult Ltd
Quantity Surveyors
BILL NO. FIVE (5)
ABLUTION BLOCK
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Qty
Unit
Excavate to remove black cotton soil not exceeding 1.50
metres deep from stripped levels
69
Cm
Ditto exceeding 1.50m but not exceeding 3.0 metres deep
from stripped levels
11
Cm
Excavate for wall foundation commencing at reduced level
and not exceeding 1.50metres deep.
10
Cm
Description
Rate
Amount
ELEMENT NO. 1
SUBSTRUCTURES
All Provisional
The quantities and nature of work indicated are provisional.
The actual work done shall be ascertained, valued and
adjustments made accordingly. Work measured upto and
including ground floor slab.
Excavation and earthworks
A
B
C
Risk of collapse of excavations
Planking and strutting
D
Allow for maintaining and supporting sides of excavations by
provision of planking and strutting and for keeping the same
free from fallen materials.
Item
Sum
Item
Sum
Keeping excavations free of water
E
Allow for keeping excavations free of water (except spring or
running water) and mud by pumping, baling or other approved
means
Fillings
Selected imported hardcore filling watered and compacted in
layers not exceeding 150mm deep
F
G
Well rammed and consolidated under floor slab in layers not
exceeding 200mm thick
66
Cm
50mm Thick quarry dust blinding to surfaces of hardcore
35
Sm
92
Cm
Disposal of excavated materials
H
Load and cart away surplus excavated material from the site
as directed by the Architect
Carried to collection
Bill No. 5
Ablution Block
5/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Soil poisoning
Anti-termite treatment
A
Chemical anti-termite treatment executed complete by an
approved specialist under a ten(10) year guarantee to
surfaces of excavations
60
Sm
26
Sm
Concrete Work
Plain concrete ; mix 1:4:8 in
B
50mm Thick blinding concrete under wall foundation
Reinforced concrete
Insitu concrete grade 20/20 including vibrating around
reinforcement in
C
Wall foundation
5
Cm
D
150mm Thick floor slab
45
Sm
E
Extra over slab for thicknessing size 400mm wide x 100mm
thick including forming sinking in hardcore
12
Lm
Reinforcement
High tensile steel reinforcement t
F
8mm Diameter bars
61
Kg
G
10mm Diameter bars
119
Kg
H
Mesh reinforcement ref A 142 or equal and approved
reinforcement in concrete slab including all necessary tying
and support (No allowance for laps)
45
Sm
Sawn Formwork to: I
Vertical sides of wall foundation
17
Sm
J
Edges of slab 75 - 150m wide
27
Lm
45
Sm
Damp proof membrane
K
500 gauge polythene or other equal and approved damp proof
membrane laid under surface bed; 300mm side and end laps
Carried to collection
Bill No. 5
Ablution Block
5/2
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Foundation walling
Load bearing approved natural stone walling, chisel dressed;
jointed in cement and sand (1:3) mortar
A
200mm Thick walling
81
Sm
Plinths
B
12mm Thick cement/sand (1:4) render to plinths
10
Sm
C
Approved bituminous paint to rendered surfaces
10
Sm
Carried to collection
COLLECTION
From Page 5/1
From Page 5/2
From Above
TOTAL OF SUBSTRUCTURES
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/3
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 2
WALLING
Ring Beams
Insitu concrete grade 20/20 including vibrating around
reinforcement.
A
Ring beams
2
Cm
28
Sm
Sawn Formwork to: B
Sides and soffites of beams
Reinforcement
C
8mm Diameter high tensile bar
81
Kg
D
12mm Diameter ditto
181
Kg
Bituminous based damp proof course
E
150mm wide
11
Lm
F
200mm wide
29
Lm
External Walls
Selected cut natural colour quarry stone walling bedded and
jointed in cement and sand (1:4) mortar and finished fair both
sides
G
200mm Thick walling
56
Sm
H
Extra over external stone wall for bush hammered coynes to
edges in alternating lengths of 200 and 100mm on both sides
of the edge
18
Lm
Internal Walls
Machine cut natural stone walling bedded and jointed in
cement/sand (1:4) mortar
I
150mm Thick walling
24
Sm
J
200mm Thick walling
11
Sm
TOTAL OF WALLING
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/4
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 3
ROOF CONSTRUCTION AND COVERING
Sawn cypress;second grade; clean; well seasoned and
treated with approved wood preservative; pressureimpregnated with celcure 'A' with and including all jointing and
connections (packing piece, bolts etc) as necessary; in roof
approximately 3,000mm high
The following in trusses or independent members
A
100 x 50mm Rafters
112
Lm
B
100 x 50 mm Ceiling joists
24
Lm
C
100 x 50mm Struts
41
Lm
D
100 x 50mm Purlins
21
Lm
E
100 x 50mm Wall plate; fixed to concrete or masonry with and
including approved bolts at 1000mm centres
27
Lm
Roof covering including all necessary fixtures
66
Sm
Ridge/Hip cap
18
Lm
Flashings; 26 gauge; 400mm wide; bending and fixing under
tiles
3
Lm
32
Lm
100 x 100mm Diameter rain water downpipe; holderbats at
1500mm (maximum) centres
18
Lm
Extra over ditto for 800 mm swan neck offset
6
No
ROOF COVERING
Decra roofing tiles supplied by Space and Style (k) ltd or
other equal and approved; laid and fixed in accordance with
the manufacturer's instructions and to Architect's approval
F
G
Rainwater Goods
Galvanised metal sheet; gauge 24; pre-painted
H
I
J
150 x 150mm Box gutter; fixed to fascia with and including
steel flat brackets at 1500 mm (maximum) centres; holes for
down pipes as necessary; closed ends.
Carried to collection
Bill No. 5
Ablution Block
5/5
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
Ditto for shoe
6
No
25mm Thick first grade cypress t&g to eaves; nailed on and
including 50 x 50mm brandering at 600mm centres both ways
and 75mm wrot cypress cornice along walls
22
Sm
225 x 25mm Fascia and berge board
35
Lm
22
Sm
31
Lm
2
No
Eaves covering
B
C
Prepare surfaces and apply undercoat and two finishing coats
of approved wood varnish; to
D
General surfaces
Prepare surfaces and apply undercoat and two finishing coats
first grade gloss enamel paint as "Crown Paint" or other equal
approved; on wooden surfaces; to
E
Fascia; surfaces over 200 but not exceeding 300mm girth
Roof vents
F
Roof vent, triangular in shape overall 2000x500mm high
comprising 75x25mm thick wrot cypress louvres with
mosquito gauze; 50x50mm cypress framing; varnished
Carried to collection
COLLECTION
From Page 5/5
From Above
TOTAL OF ROOF CONSTRUCTION AND COVERING
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/6
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 4
WINDOWS
Approved red clay tile cill; bedded and jointed in cement/sand
(1:3) mortar; pointed in matching coloured cement.
A
150 x 100 x 25mm Thick cill
7
Lm
Steel casement window; purpose made standard metal
casement sections complete with integral burglar proofing
12mm square bars; Zed sections to architects detail and
approval; including permanent ventilators comprising 'T' bar
gauze and metal hood; openable casements; coupling
mullions; approved ironmongery; as per schedule. Pattern as
shown in the Appendix
B
Window size 900 x 900mm high overall
4
No
C
Window size 600 x 600mm high overall
8
No
3
Sm
2
Sm
General surfaces; window and burglarproofing grilles internally
(measured flat overall)
5
Sm
General surfaces; windows externally (measured flat overall)
5
Sm
5mm Thick obscured sheet glass and glazing to steel
casement window with and including linseed putty; in panes
D
Panes various sizes
5mm Thick one way glass and glazing to steel casememt with
and including linseed putty; in panes
E
0.5 to 1.0 square metres
Prepare metal surfaces; apply undercoat and two finishing
coats first grade eggshell paint; as "Crown paints" or other
equal approved metallic paint on metal surfaces to
F
G
TOTAL OF WINDOWS
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/7
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 5
DOORS
Flush doors
45mm Thick flush door both sides faced both sides with
mahogany veneer; all edges hardwood lipped
A
800 x 2100mm Door; semi-solid cored
2
No
B
800 x 2000mm Door; semi-solid cored with aluminium
flashing internally
8
No
900 x 2100mm Door; solid cored; with clear glass panel
250x850mm
2
No
C
Wrot mahogany in;
D
100 x 50mm Door frame; rebated; plugged
41
Lm
E
150 x 50mm Door frame; rebated; plugged
21
Lm
F
38 x 25mm architrave
65
Lm
G
20mm Quadrant
21
Lm
Prepare surfaces; apply undercoat and two finishing coats
wood varnish; as "Crown paints" or other equal approved
paint to
H
Door; general surfaces
43
Sm
I
Surfaces over 200mm but not exceeding 300mm girth; frame,
architrave and quadrant
65
Lm
Three lever mortice lock; complete with a set of brass lever
handle furniture fixed to timber door
4
No
K
Approved indicator bolts
8
No
L
38mm diameter rubber door stops No. 8400 to concrete or
blockwork fixing with screws; plugging
12
No
18
Prs
Ironmongery
Supply and fix English "Union" or other equal approved
ironmongery; matching screws; locks to include a set of 3
keys
J
M
100mm Long steel butt hinges
TOTAL OF DOORS
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/8
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 6
FINISHES
Floor Finishings
Cement and sand (1:4) screed to floor: in
A
32mm Thick finished to receive ceramic tiles
36
Sm
300 x 300 x 8mm Approved coloured ceramic floor tiles as
'Saj Ceramics' or other equal approved; to regular pattern;
grouting joints in matching cement; to
B
Floors; on level screed (m/s)
36
Sm
C
Skirting 100mm high
8
Lm
88
Sm
88
Sm
38
Sm
38
Sm
66
Sm
Wall finishes
Cement and sand (1:4) to walls in
D
12mm Thick render to receive ceramic tiles
200 x 250 x 6mm Coloured glazed tiles as 'Saj Ceramics' to
regular pattern; bedding and jointing in cement mortar (1:4)
grouting joints with matching cement
E
To wall; grouting edges
Plaster 9mm first coat of cement/lime putty/sand (1:2:9):3mm
second coat of cement/lime putty/sand (1:1:6): steel toweled;
on masonry or concrete: to
F
Walls; internally
Prepare surfaces and apply undercoat and two finishing coats
plastic emulsion paint as "Crown Paints" or other equal
approved on plastered masonry or concrete surfaces: to
G
Walls: internally
Cement and sand (1:4) render: on concrete or masonry:
wood float finished; to
H
Wall and concrete; externally
Carried to collection
Bill No. 5
Ablution Block
5/9
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Prepare surfaces and apply undercoat and two finishing coats
first grade emulsion paint as "Crown Paints" or other equal
approved on plaster masonry or concrete surfaces to
A
Wall and concrete; externally
66
Sm
Ceiling Finishes
First grade cypress; wrot; well seasoned; cellcured; selected
and kept clean
B
75mm Moulded cornice top piece; fixed to ceiling
73
Lm
C
Gypsum board ceiling fixed on and including 50 x 50
brandering at 600mm centers both ways
34
Sm
73
Lm
34
Sm
Prepare surfaces and apply one coat (undercoat) and two
coats oil paint on wood surfaces; to
D
Cornices; surfaces not exceeding 100mm girth
Prepare and apply three coats of plastic emulsion paint by
"Crown Paints" or other equal and approved; on gypsum
surfaces
E
Ceilings, general surfaces
Carried to Collection
COLLECTION
From page 5/9
From above
TOTAL FOR FINISHES
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/10
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ELEMENT NO. 7
JOINERY FIXTURES
Vanity tops
A
Wash Hand Basin Vanity tops overall size 2200x600mm wide;
50mm thick concrete worktop: top, fascia(250mm wide) and
splash skirting finished with granite slab; all with beveled
edges
2
No
TOTAL FOR JOINERY FITTINGS
Carried to Summary of Bill No 5
Bill No. 5
Ablution Block
5/11
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
SUMMARY
BILL NO. 5
ABLUTION BLOCK
From
page
1
SUBSTRUCTURES
5/3
2
WALLING
5/4
3
ROOF CONSTRUCTION AND COVERING
5/6
4
WINDOWS
5/7
5
DOORS
5/8
6
FINISHES
5/10
.
7
JOINERY FITTINGS
5/11
TOTAL FOR ABLUTION BLOCK
Carried to Main Summary
Bill No. 5
Ablution Block
5/12
Constingconsult Ltd
Quantity Surveyors
BILL NO. SIX (6)
EXTERNAL WORKS
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Item
Qty
Description
Unit
Rate
Amount
EXTERNAL WORKS
(All Provisional)
SITE PREPARATION
A
B
Clear the site of bushes, shrubs, hedges, undergrowth etc and
small trees not exceeding 600mm girth including grubbing up roots
Item
and remove from site
Sum
Cut down and remove tree average 900 mm girth grub up roots
and cart away
6
No
C
Ditto but average 1500mm girth ditto
5
No
D
Ditto but average 1800mm girth ditto
3
No
E
Dig out and grab up roots of tree stamps ditto
4
No
TOTAL OF SITE PREPARATION
Carried to Summary of External Works
Bill No. 6
External Works
6/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
DRIVEWAY AND PARKING
A
Excavate to reduce levels not exceeding 1.50 metres deep from
existing ground levels remove and cart away
1,798 Cm
B
Grade and compact surfaces of excavations
C
300mm Thick hardcore sub-base laid, well compacted and rolled to
3,996 Sm
the satisfaction of the Civil Engineer
3,996 Sm
D
150mm Thick handpacked stone base laid and compacted to
100% compaction at optimum moisture content and rolled to falls
E
3,996 Sm
Supply and lay medium duty precast concrete interlocking paving
blocks as "Bamburiblox" with rounded edges and butt joints laid to
an approved pattern on and including 50mm thick quarry dust bed
including all necessary raking cutting to edges and making good
3,996 Sm
kerbs to the satisfaction of the Engineer
Kerbs
F
250 x 225mm Precast concrete grade '20' road kerb, batered at top
laid on and including 450 x 150mm high concrete grade '15'
haunch including excavations, grading bottoms and disposal of
1,155
excavated material
Lm
G
Ditto but curved to various radii
471
Lm
H
125 x 100mm Precast concrete grade 20 road channel bedded in
concrete
72
Lm
Excavate to reduce levels not exceeding 1.5metres deep and cart
away from site
203
Cm
Approved hardcore filling laid and compacted in layers not
exceeding 200mm thick to the approval of the Engineer
203
Cm
675
Sm
1,125
Lm
169
Sm
Paved Walkways
I
J
Interlocking light duty precast concrete paving blocks as before
described including 25mm thick sand bed
K
50mm Thick concrete paving blocks, laid to pattern
L
125 x 100mm precast concrete grade 20 flush road channel
bedded in 325x100mm class 15 concrete
M
600x600mm x 25mm Thick precast concrete paving slab laid on
and including all necessary excavations, levelling and 50mm
compacted quarry dust and pointing
TOTAL OF PARKING AND PAVED AREAS
Carried to Summary of External Works
Bill No. 6
External Works
6/2
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BOUNDARY WALL AND GATES (Provisional)
A
Excavate for wall footing or column bases not exceeding 1.50
metres deep
388
B
Allow for maintaning and supporting sides of excavations
Item
C
Select excavated material part fill around foundations compact in
layers and part cart away
388
Cm
Reinforced concrete grade 1:2:4 including vibrating around bars in
wall footing or column base
87
Cm
E
200mm thick masonry wall in cement mortar 1:4 in foundation
492
Sm
F
200mm Wide bituminous based damp proof course under walls
645
Lm
G
200mm thick quarry stone walling bedded and joined in cement
and sand mortar both sides fair faced, keyed and pointed
D
H
Cm
Sum
1,313 Sm
50mm Thick special cut mazeras cladding to surfaces of R.C
column; backing and recessed key pointing
342
Sm
Precast concrete copping size 425x75mm average thick tappered,
bedded and jointed in cement mortar
645
Lm
J
Ditto 690x545mmx150 thick average tappered all sides ditto
228
No
K
Reinforced concrete 1:2:4 including vibrating in columns
51
Cm
637
Lm
I
The following in mild steel to BS5950; all welding to BS5135,
Grade 4.6 bolts and nuts to BS BS4360; making small holes;
priming and connections to the approval of the Engineer; in
L
Metal grille panel average 600mm high comprising 20 x 4mm thick
x 600mm high RHS vertical bars spaced at 230mm centres, 50 x
4mm x 500mm high RHS vertical bars spaced at 2400mm centres
and fixed to walls, all welded to and including 20 x 6mm thick m.s
flat bottom and top rails centres and fixed between pillars including
welding and priming, all as per Architect's drawings (See Appendix
A14)
Sawn formwork to:
M
Vertical sides of column base
76
Sm
N
Sides of columns
251
Sm
High tensile steel reinforcement (Provisional)
O
8mm diameter bars
1,394
Kg
P
10mm diameter bars
3,190
Kg
Carried to collection
Bill No. 6
External Works
6/3
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Gates
A
40mm overall thick metal gate size 6000 x 2200 high in two equal
leaves; comprising 65 x 65 x 3mm RHS framing and twisted
ornamental steel rods; 100 x 6mm thick plate bottom; 100 x 45mm
mild steel horizontal members both ways; all mouldings and
decorations; complete with hinges and strap bolts, tower bolts,
gate stops; all welded primed and painted with oil paint; reinforced
concrete pillars (m/s), finished to Architect's detail (See Appendix
A14)
1
No
B
Ditto but 5000 x 2100mm high ditto
2
No
C
Ditto but pedestrian gate size 1200 x 2100mm high in single leave
ditto
2
No
Carried to collection
COLLECTION
From Page 6/3
From Above
TOTAL OF BOUNDARY WALL AND GATES
Carried to Summary of External Works
Bill No. 6
External Works
6/4
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
GATE HOUSES
A
B
Construction complete of gate house overall size 5.2 x 3.0 x 2.6
metres high complete with a washroom 1400x2300mm wide;
constructed of stone masonry walls, painted internally and keypointed externally, timber roof structure covered with decra roofing
tiles; mild steel casement windows, hardwood veneered semi-solid
core flush doors; in-built benches; all complete in accordance with
the Architect's drawings and details (services installations taken
seperately)
1
No
Ditto size 3.7 x 3.05 x 2.6 metres high complete with a washroom
1200x2200mm wide; constructed of stone masonry walls, painted
internally and key-pointed externally,concrete flat roof structure;
mild steel casement windows, hardwood veneered semi-solid core
flush doors; all complete in accordance with the Architect's
drawings and details (services installations taken seperately)
1
No
2
.
No
Dustbin Cubicles
C
Construct complete dustbin cubicles overall size 2000x800mm
wide x 1500mm high in smooth dressed masonry walling and
covered in Decra roofing tiles complete; all in accordance with the
Architect's detail
TOTAL FOR GATE HOUSES
Carried to Summary of External Works
Bill No. 6
External Works
6/5
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
FOUL DRAINAGE
A
Excavate trench for 100 or 150mm diameter drain pipes not
exceeding 1.50 metres deep but average depth 600mm, part
return and remainder cart away
450
Lm
Heavy gauge UPVC golden colour drain pipes complete with
fittings laying, jointing and laying in trench
B
100mm Diameter pipe
150
Lm
C
150mm Ditto
300
Lm
D
225mm Diameter precast concrete drain pipe with spigot joints and
100
including concrete surround and all earthworks
Lm
450 x 150mm class 20 concrete bed and haunching surround to
100mm pipe under traffic
51
Lm
Construct complete manhole including all masonry walling,
reinforcement, formwork, channels, plaster, outlets, connections,
earthworks, concrete work, and 600x450mm medium duty cast
iron cover manhole size 600x450mm internally x 600mm average
deep to invert
35
No
Ditto manhole size 900x450mm internally x1000mm deep to invert
all Ditto
20
No
Ditto manhole size 900x600mmx1500mm deep to invert Ditto
5
No
20
No
1
No
E
Manholes
F
G
H
Gulley Trap
I
100mm Diameter coated cast iron trapped gulley with 100mm
diameter outlet, 150mm diameter cast iron grating set bedded in
concrete 1:3:6 including forming 203 x 203 x 150mm high (internal
) gulley surround with 75mm thick sides and rebated top edge for
and including cover
Conservancy Tank
J
Construct complete conservancy tank capacity 5000litres all in
accordance with the Structural and Mechanical Engineer's details
TOAL OF FOUL WATER DRAINAGE
Carried to summary of External Works
Bill No. 6
External Works
6/6
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
ANCILLARY STRUCTURES
Gazebo
A
Construct complete Gazebo overall size 6000mm diameter; all
earthwaorks and foundations, paved steps, cladded concrete
columns, beams and decra roof covering on timber structure;
timber boarding to floor, t&g ceiling; All complete as per detailed
drawing attached in the Appendix
1
No
Construct complete Berbeque overall size 7000mm diameter; all
earthworks and foundations, paved steps, stone walls, cladded
concrete columns, beams and decra roof covering on timber
structure; mazeras paving to floor; All complete as per detailed
drawing attached in the Appendix
1
No
Barbeque worktop curved on plan to profile overall size
6000x600mm wide including service counter, Cooker(m/s) and
sink(m/s); 50mm thick concrete worktop finished with BLUE KING
MARBLE CLASSIC or similar and approved granite top and fascia;
hardwood veneered blockboard sides, shelves and partitions all in
accordance with Architect's drawing
1
No
1
No
Berbeque
B
C
Generator House
D
Construction complete of GENERATOR house overall size 4.0 x
3.0 x 2.8 metres high complete; constructed of stone masonry
walls, plastered internally and key-pointed externally, 150mm thick
RC flat slab water-proofed; louvred precast concrete vent block
windows, louvred steel casement doors; all complete in acordance
wit the Architect's drawings and details (services installations taken
seperately)
TOTAL OF ANCILLARY STRUCTURES
Carried to Summary of External Works
Bill No. 6
External Works
6/7
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
STORM WATER DRAINAGE
A
B
C
D
E
F
G
150mm Diameter heavy gauge UPVC pipe in trench including
excavations, 100mm thick concrete (1:3:6) surround and backfilling 151
Lm
225mm Diameter precast concrete grade 25 drain pipes in
trenches with spigot joints ditto
90
Lm
25
Lm
Ditto but 600mm diameter IBD channel with one side slab on both
sides
35
Lm
Road gully internal size 450 x 450 x 300mm average deep
complete including all earthworks, grating cover, haunching, pipe
connections as per details.
4
No
Construct complete Road culvert 600mm diameter x5000mm long
including all earthworks,150mm thick, end and walls rendering to
end walls etc as per detail.
2
No
Ditto but 900mm diameter x 7500mm long all ditto
1
No
175mm Thick x 800mm wide x 500mm long stormwater shallow
Invert Block Drainage channel curved to 650mm radius including
all necessary earthworks, sand bed and 50mm concrete bedding
Open channel
H
Open channel size 200mm diameter average x 200mm deep with
side embankment at 45 degrees including excavation and
233
compacting
Lm
TOTAL OF STORMWATER DRAINAGE
Carried to Summary of External Works
Bill No. 6
External Works
6/8
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
SWIMMING POOL
A
Excavate for swimming pool pit not exceeding 1.50 metres deep
from existing ground level and cart away no allowance for working
186
space
Cm
Ditto exceeding 1.50 metres but not exceeding 3.0 metres deep
from existing ground level and cart away
25
Cm
C
Trim and level surfaces of excavation
60
Sm
D
Ditto but to slope ditto
68
Sm
B
Planking and strutting
E
Allow for maintaining and supporting sides of excavations by
provision of planking and strutting and for keeping the same free
Item
from fallen materials.
Sum
Keeping excavations free of water
F
Allow for keeping excavations free of water (except spring or
running water) and mud by pumping, baling or other approved
Item
means
Sum
Plain concrete ; mix 1:4:8 in
G
50mm Thick blinding concrete under base slab
128
Sm
Insitu concrete grade 25/20 including vibrating around
reinforcement in
H
200mm Thick base slab
128
Sm
I
Extra over slab for thicknessing average 700mm wide x 200mm
thick
56
Lm
J
200mm Thick wall
58
Sm
K
Beams or steps
6
Cm
L
Sides and base of channel around the pool
7
Cm
M
Sump 600x600x300mm deep complete with approved PVC grating
2
No
Carried to collection
Bill No. 6
External Works
6/9
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Vandex or other equal and approved waterproofing additive
applied to manufacturer's instructions on and including cement
and sand screed paving on
A
30mm Thick screed laid to floor
115
Sm
B
15mm Thick plaster on walls
58
Sm
C
25x25mm Angle fillet
53
Lm
D
"SIKA" or other equal and approved PVC water bar 200mm wide
53
Lm
High tensile steel reinforcement as before described (provisional)
E
10mm Diameter bars
3,620
Kg
F
12mm Ditto
2,450
Kg
G
Mesh reinforcement ref A 142 or equal and approved
reinforcement in concrete slab including all necessary tying and
support (No allowance for laps)
128
Sm
Sawn Formwork curved to various radii to: H
Vertical sides of wall
116
Sm
I
Sides and soffites of channel
50
Sm
J
Edge of slab 150-225mm wide
176
Lm
K
Steps 150 - 225mm wide
15
Lm
116
Sm
Extra over tiling for dressing into sump size 600x600x300mm deep
2
No
6mm Thick to pool walls including cutting and fitting around
openings
58
Sm
150mm thick hardcore filling including excavation and cart away
164
top soil, compacting layer of hardcore and blinding
Sm
Mazeras tiles around the pool including 75mm thick concrete bed
20mm thick cement/sand screed backing
Sm
Alcalages porcelain or other equal and approved mosaic tiles;
glazed blue and bedding and jointing in appropriate cement/sand
mortar and grouting with matching cement
L
6mm Thick to pool floor
M
N
O
P
58
Carried to Collection
Bill No. 6
External Works
6/10
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
600x600x50mm Thick coloured special concrete paving slabs laid
on 50mm sand bed and pointing
106
Sm
B
Extra over floor tiles for footbaths 450x450mm x150mm deep
2
No
C
In stainless steel; 2200mm long x 400mm wide ladder in 40x40mm
framing and 30x25mm lugs/steps at 250mm centres
1
No
D
Ditto but 1000mm long ladder ditto
2
No
E
50mm Diameter stainless steel hand railing around the pool fixed
with and including lugs steps built into concrete
27
Lm
Hot deep galvanized steel
F
35x35x3mm Thick angle frame fixed with lugs in concrete.
90
Lm
G
300mm wide grating comprising 35x6mm thick frames and flats at
25mm centres in lengths not exceeding 1000mm long including
curved sections
60
Lm
Carried to Collection
COLLECTION
From page 6/9
From page 6/10
From Above
TOTAL OF SWIMMING POOL
Carried to Summary of External Works
Bill No. 6
External Works
6/11
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
LANDSCAPING
Drying Lines
A
B
Gauge (4mm diameter) mild steel drawn wire three No. strands
(lines) 8 metres long each comprising 3No. 50mm diameter 4mm
thick pipe 2300mm long over all post with one end 150mm long
cast in and including 150x450mm deep concrete base, 1No.
50x30mmx3mm thick angle, 600mm long horizontal cross member
2No. 50x30mmx3mm anglex200mm long struts complete with
welding and fixing.
Provide a Provisional Sum of Two Million Kenya Shillings only
for Landscaping to be omitted or expended in whole or in part at
the discretion of the Architect
6
Item
No
Sum
2,000,000.00
TOTAL OF LANDSCAPING
Carried to Summary of External Works
Bill No. 6
External Works
6/12
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BILL NO. 6
EXTERNAL WORKS
SUMMARY
From
Page
1
SITE PREPARATION
6/1
2
DRIVEWAY, PARKING & PAVED AREAS
6/2
3
BOUNDARY WALLS AND GATES
6/4
4
GATE HOUSES
6/5
5
FOUL DRAINAGE
6/6
6
ANCILLARY STRUCTURES
6/7
7
STORM WATER DRAINAGE
6/8
8
SWIMMING POOL
6/11
9
LANDSCAPING
6/12
TOTAL OF EXTERNAL WORKS
Carried to Main Summary
Bill No. 6
External Works
6/13
Constingconsult Ltd
Quantity Surveyors
BILL NO. SEVEN (7)
PC AND PROVISIONAL SUMS
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
Description
Item
Qty Unit
Amount
BILL NO. 7
PRIME COST AND PROVISIONAL SUMS
Include the following PC Sums for works to be executed by
nominated specialist Sub-contractors
A
Provide the Prime Cost Sum of Kshs. Twenty Million, Seven
Hundred Thousand (20,700,000/=) only for Electrical Installations
Item
Sum
%
B
Allow for Profits
C
Allow for Builders work and all Attendance in connection with
electrical installations for all the works
Item
Sum
Provide the Prime Cost Sum of Kshs. Eighteen Million, Two
Hundred Thousand (18,200,000/=) only for Plumbing, Drainage
and Sanitary Installations
Item
Sum
D
18,200,000.00
%
E
Allow for Profits
F
Allow for Builders work and all Attendance in connection with
mechanical installations for all the works
Item
Sum
Provide the Prime Cost Sum of Kshs. Nine Million, (9,000,000/=)
only for Sauna, Steambath and Kitchen Equipment,
Airconditioning and LPG Installations
Item
Sum
G
20,700,000.00
9,000,000.00
%
H
Allow for Profits
I
Allow for Builders work and all Attendance in connection with
mechanical installations for all the works
Item
Sum
Provide the Provisional Sum of Kshs. Two Million (2,000,000/=)
only for Underground Water tank to be omitted or expended in
whole or in part at the discretion of the Architect
Item
Sum
2,000,000.00
Provide the Provisional Sum of Kshs. Nine Hundred and Fifty
Thousand (950,000/=) only for Wood and Ornamental Panelling
to Lobby walls to be omitted or expended in whole or in part at
the discretion of the Architect
Item
Sum
950,000.00
Include the following Provisional Sums for works to be executed
by nominated specialist Sub-contractors
J
K
Carried to collection
Bill No. 7
P.C Provisional Sums
7/1
Constingconsult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
A
B
Provide the Provisional Sum of Kshs. Three Million (3,000,000/=)
only for Travelling and other out of pocket expenses incurred
on supervision to be expended in whole or in part as authorised
by the Project Manager and approved by the Client
Provide the Provisional Sum of Kshs. Ten Million (10,000,000/=)
only for Contingencies to be omitted or expended in whole or in
part at the discretion of the Architect
Item
Sum
3,000,000.00
Item
Sum
10,000,000.00
COLLECTION
From Page 7/1
From Above
TOTAL OF P.C & PROVISIONAL SUMS
Carried to Main Summary
Bill No. 7
P.C Provisional Sums
7/2
Constingconsult Ltd
Quantity Surveyors
MAIN SUMMARY
Consting Consult Ltd
Quantity Surveyors
PROPOSED GOVERNOR'S MANSION, MERU COUNTY
BILL NO. 8
MAIN SUMMARY
BILL NO
FROM PAGE
1
BILL NO 1 - PRELIMINARIES
1/29
2
BILL NO. 2 - MAIN HOUSE
2/26
3
BILL NO. 3 - SERVANT QUARTERS
3/17
4
BILL NO. 4 - CHANGING ROOMS
4/14
5
BILL NO. 5 - ABLUTION BLOCK
5/12
6
BILL NO. 6 - EXTERNAL WORKS
6/13
7
BILL NO. 7 - P.C & PROVISIONAL SUMS
7/2
SHS.
TOTAL FIXED TENDER SUM
Inclusive of VAT
CARRIED TO FORM OF TENDER
Name of Tenderer ……………………………………………………………….
Name and Signature of
Authorised Representative ……………………………………………………..
Date
………………………………………………………………………
Name & signature of Witness …………………………………………………
Date
……………………………………………………………………...
Constingconsult Ltd
Quantity Surveyors
APPENDIX
Consting Consult Ltd
Quantity Surveyors
4th February 2015
The County Secretary,
County Government of Meru,
P.O. Box 120 – 60200,
MERU
Dear Sir/Madam,
THE PROPOSED GOVERNOR’S MANSION FOR MERU COUNTY AT MERU
SUB: ARRANGEMENT OF THE TENDER DOCUMENTS
Please find the tender documents for your use as requested. We also wish to comment as follows:

The tender documents are in PDF format only.

The PDFs have been arranged numerically for ease of locating them, i.e. (1 - 20B)

Ensure that when they are printed they are arranged in the order of their numbers as
above. This is how the finalized tender document should be.
Yours faithfully,
K & M Archplans
JAMES KIMATHI