Construction of Neutralisation Pit P.A.C Storage And CC Road At Hirpura and Rampura WTP Ta.Vijapur Under M and R Programme Of Vijapur RWSS

Estimated Cost: Rs. 14,36,464=86

Executive Engineer

Gujarat Water Supply & Sewerage Board

P.H. Works Division, MEHSANA

Volume-III, PRICE BID VKV RWSS

Name of Work:- “Construction of Neutralisation Pit, P.A.C Storage And CC Road

At Hirpura & Rampura WTP Ta.Vijapur Under M&R Programme Of Vijapur RWSS”

The bidder shall quote his firm and fixed price for the entire work under this

Contract, defined in more details in various sections of this bid document.

(1) The rates and prices shall be submitted in the electronic formats given by

n-procure which is called Schedule-B. Rates and prices received in any

other formats will be rejected and the Bids will be disqualified.

(2) It will be entirely at the discretion of the Employer to accept or reject

the bidder’s proposal, without giving any reasons whatsoever and the

bidder shall not be permitted to withdraw his bid on this account.

to be free supplied from the by client.

(4) In Schedule-B the Bidder shall quote prices for the items on lump sum /

unit rate as called for against the BOQ item.

quoted in Schedule-B only will be considered for price evaluation & shall

form a part of the Contract Agreement.

comparison and evaluation.

(7) The Bidder shall quote his prices for Operation & Maintenance in

Schedule-C. Bidder shall give year wise break up of cost for 5 years O&M

in Schedule-C/1 to Schedule-C/5 separately for Schedule-C. The total

shall be inline to the price quoted in Schedule-C. The total shall be

carried forward to Schedule-B for comparison and evaluation.

(8) Wherever for a particular item the quantities have been specified

payment shall be on unit rate basis and unit variation in quantity will be

paid with pro rata basis.

(9) Each item is to be individually priced online and the amounts shall be

the Schedules of prices shall be left blank except where the item

description requires the item to be priced on "as applicable” basis. The

item shall not be priced if it is “not applicable” to the bidder’s design, in

which case the bidder shall add the words “NOT APPLICABLE”. The

wording in the item description is for subject matter guidance only;

clause references are indicative only and all other relevant clauses shall

also be referred to. The prices shall allow for all the works covered under

the bid and all liabilities and contractual obligations whether separately

specified or not. Items against which no prices are quoted shall not be

separately paid for and the bidder shall be deemed to have covered the

Volume-III, PRICE BID VKV RWSS

cost of execution of such items (according to the requirements of the bid

document) in the prices quoted for other items.

executed for satisfactory working/safety of the system as specified, will

not be separately paid for by the Employer when executed and shall be

deemed to be already covered by other items and rates listed in the price

sheets No extra payment shall be given for any item which is required to

complete and perform the project.

fixed, during the pendency of the Contract. In case of any discrepancy

of the successful bidder shall be corrected accordingly. Only Price

Schedule–B after carried over and arithmetic corrections if any will be

considered for financial evaluation of the bid.

(12) Schedule ‘D gives the basis of interim payment for construction of civil

(13) The bidder shall be deemed to have allowed in his price for provision,

maintenance and final removal of all temporary works of whatsoever

nature required for construction including temporary bunds, diverting

water, pumping, de-watering etc. for the proper execution of works. The

rates shall also be deemed to include any works and setting out that may

be required to be carried out for laying out of all the works involved.

(14) Prices shall be filled online only.

Contract, the Specifications and other sections of these bid documents

and these documents are to be taken as mutually explanatory of one

(16) The bidder shall interpret the data furnished and carry out any additional

survey work, or investigation work required at his own cost.

(17) The prices quoted shall also include the cost of materials utilized for

(18) The bidder should acquaint himself with the site conditions including the

access to Work site. The successful bidder shall have to make suitable

access to work sites at his own cost. These accesses will be used by the

other contractors working for GWSSB.

only and the prices shall include all the equipments / materials /

accessories and services required as per the specifications. The bidder

(20) The amount to be quoted for O & M / year shall be as per Volume-II,

General Conditions of Contract, Clause No. 1, and Security Deposit.

(21) 1% of the value of work will be deducted from the Running bill against

labour cess which is non refundable.

(22) Third Party Inspection / CSC agency will be deployed by GWSSB and

charges of the same will be borne by GWSSB.

Volume-III, PRICE BID VKV RWSS

(23) Any expenditure incurred by inspection/ CSC agency for the work

misinformed by the contractor and charges of inspection/ CSC agency

without any work due to misinformation shall be recovered from the

(24) The rates quoted shall be exclusive of GST, but inclusive of all other

taxes, duties which shall not be paid extra. While GST will be paid for

admissible part of actual work done at the approved tender rates and

tender conditions of price variations. GST shall be paid as per prevailing

rates at the time of payment. The TDS shall be deducted at source as per

provision of IT rules and GWSSB Policy.

(25) The rates should be quoted exclusive of GST but inclusive of all other

taxes as per Volume-1 (B), General Conditions of Contract, Clause No.

(26) The process requires that the bidder shall quote his price for the work

prices shall remain firm and fix during the entire period of performance of

the contract except price variation allowed for supply of MS/DI/PVC/GI

pipe as per Volume-II Clause No. 59, General Conditions of Contract.

(27) Payment shall be made for the components for which lump sump prices

are quoted, as per the schedule of payment. Total cost will be worked out

on the basis of work done of individual items and rates quoted against

those particular items only.

(28) Royalties: The contractor shall be liable to pay the royalty of the

quarried materials/ minerals used in the construction of works at the

rates specified in the Narmada Water Resources, Water Supply & Kalpsar

Dept. Resolution No. GEN-2010-595- (6)- M.I.Cell ( K-1) Dt. 29-4-2011 (

Gujarati Version Copy enclosed) and shall be recovered from the running

bills of the work from time to time and remaining amount if any shall be

recovered from the final bill before releasing the security deposit of the

work. The contractor shall furnish the statement showing the quantity of

quarried materials / minerals from whom purchased ( with full address of

the seller) and copies of the bills for purchase to the Executive Engineer

of the in charge of the work. The contractor shall also furnish such

additional information as regards royalty payment to the competent

(29) Agency shall have to take Insurance policy and intimate to GWSSB along

with the evidence within time limit. In case of non compliance entire

responsibility shall be rest with the agency and required amount shall be

recovered from any due amount of the agency.

(30) GWSSB can recover penalty amount from the agency for not taking the

insurance. Though the penalty amount is recovered, responsibility of the

agency for taking insurance shall be continued and will not be escaped

from the responsibility.

(31) The contractor shall apply fair means of stock maintenance and shall

adopt accounting standard as may be prescribed under GST Act as

applicable in the state of Gujarat. For arriving at the difference in

procurement prices due to introduction of GST it will be open for the

Board to ask for original invoices, lorry receipt, weigh bridge slips,

Volume-III, PRICE BID VKV RWSS

payment details and such other documents as may be required for the

(32) The claim of contractor regarding GST shall have to be backed by

documentary evidence substantiating the actual payment of tax duly

certified by the competent tax authority. The final decision regarding the

quantum of claim amount to be recovered or reimbursed shall be of the

competent authority of the GWSSB and shall be binding on the contractor.

Signature of contractor Executive Engineer

Public Health Works Division

Volume-III, PRICE BID VKV RWSS

Bidders are required to fill up all the blank spaces in this Bid Form.

THE EXECUTIVE ENGINEER,

PUBLIC HEALTH WORKS DIVISION,

SUB: “Construction of Neutralisation Pit, P.A.C Storage And CC Road At Hirpura &

Rampura WTP Ta.Vijapur Under M&R Programme Of Vijapur RWSS”

The bidder shall quote his firm and fixed price for the entire work under this

Contract, defined in more details in various sections of this bid document.

1. Having visited the site and examined the Bid Documents, Drawings, Conditions of

execution of the above Contract, we the undersigned offer to design, Engineer,

procure, construct, complete, commission, operate and maintain the whole of

the said works for 2 years from the date of commissioning including defects

liability period as given in Conditions of Contract and in conformity with the

Annexure, Bidding Documents, including Addenda Nos.__________ (insert

numbers) for Lump sum fixed price of Rs._________________.

Rupees_____________________________________________) for Construction

including free trial run for three months or such other sum as may be ascertained

in accordance with the conditions.

2. I/We agree that

a) if we fail to provide required facilities to the Employer’s representative or any

other person/Agency by the Employer to perform on his behalf for carrying out

the inspection and testing of materials and workmanship.

b) if we incorporate into the Works, materials before they are tested and approved

by the Engineer’s representative.

c) if we fail to deliver pure water of required quantity according to the

conditions/stipulations of the Contract, the Engineer will be at liberty to take

any action including termination of Contract and impose at his absolute

discretion any penalties, and/or reject the work.

3. We undertake, if our Bid is accepted, to complete and deliver the works in

accordance with the Contract within 15 months, inclusive of monsoons, from the

date or receipt of Letter of Acceptance issued to us by you.

Volume-III, PRICE BID VKV RWSS

4. We agree to abide by this Bid for a period of 180 days from the Last date of

submission of the bill and it shall remain binding upon us and may be accepted at

any time before the expiry of that period.

5. In the event of our Bid being accepted, we agree to enter into a formal Contract

Agreement with you incorporating the conditions of Contract there to annex but

until such agreement is prepared this Bid together with your written acceptance

thereof shall constitute a binding Contract between us.

6. We agree, if our Bid is accepted, to furnish performance /Security in the forms

and of value specified in the Clause 1 of Volume-II, “General Conditions of

7. We have independently considered the amounts of liquidated damages shown in

Appendix to Bid and agree that they represent a fair estimate of the damages

likely to be suffered by you in the event of the work not being completed by us

8. We understand that you are not bound to accept the lowest or any Bid you may

(Name of the Person)

Company Seal _____________________

Duly authorized to sign Bid for and on behalf of (fill in block capitals)

Witness Signature ___________________________

Volume-III, PRICE BID VKV RWSS

NAME OF SCHEME – Piyaj Dharoi Pipeline Based Vijapur RWSS Ta:-Vijapur Dist:-Mehsana

Name of Work:- “Construction of Neutralisation Pit, P.A.C Storage And CC Road

At Hirpura & Rampura WTP Ta.Vijapur Under M&R Programme Of Vijapur RWSS”

The bidder shall quote his firm and fixed price for the entire work under this

Contract, defined in more details in various sections of this bid document.

Schedule showing the approximately the materials to be supplied to the contractor

from government stores for the work to be executed and the rate at which they are

Rate at which the material

Place of Delivery

Sr. will be charged to the

Particular Qty. (Transportation

given separately)

1. The person or the firm submitting the tender should see that the rates of above

schedule are filled up by the Executive Engineer or in charge of the work before

issuing the tender.

2. The contractor should have to make his own arrangement for loading,

unloading and carting the materials from store to site of work at his own

unloading and carting the materials from store to site of work at his own cost.

3. The materials shall be issued free of cost by the Department. However, recovery

with be effected at the double rate of issue rate, in case of non return of balance

materials by the contract.

4. Approved vendor List for purchase of materials/Equipment required for the

work if Required.

5. All the surplus materials supplied by the deptt. As mentioned in schedule-A

should be handed over to the Department by the contractor at the Govt. stores as

6. The materials mentioned in schedule-A shall have to be checked for their

correctness and soundness by the contractor before taking the delivery of the

materials from the Government.

7. Necessary cement will be purchased by the agency at their own cost from open

market as per specification.

8. The persons of firm submitting the Tender should see that rates in the above

schedule are filled up by the Executive Engineer, on the issue of form prior to the

submission of the Tender.

Volume-III, PRICE BID VKV RWSS

9. Contractor should return the balance materials in good and acceptable condition,

otherwise recovery at the double rates will be affected in view of Clause 12.4.

Signature of contractor Executive Engineer

Public Health Works Division

Volume-III, PRICE BID VKV RWSS

SUMMARY (SCHEDULE-B)

Name of Work:- “Construction of Neutralisation Pit, P.A.C Storage And CC Road At Hirpura &

Rampura WTP Ta.Vijapur Under M&R Programme Of Vijapur RWSS”

Sr. No. Name of Work Amount Rs.

I / We am / are willing to carry out the work at______________________________% above / Below

percent (should be written in figure and words) of the estimated rates mentioned above amount of my /

our tender works out as under.

Estimated amount put to tender : Estimated amount put to Tender

Deduct________% Below Add________% above

Signature of contractor Executive Engineer

Public Health Works Division

Volume-III, PRICE BID VKV RWSS

ITEM DESCRIPTION Qty. Unit Rate Amount

1 Excavation for foundation upto 1.5 m depth including

sorting out and stacking of useful materials and

disposing off the excavated stuff upto 50 Meter lead.(A) 58.16 Cum 210.42

Loose or soft soil

2 Providing and laying cement concrete 1:5:10 (1-

Cement : 5- Coarse sand : 10- hand broken stone

aggregates 40 mm nominal size) and curing complete

excluding cost of formwork in (A) Foundation and Plinth

3 Providing and laying cement concrete 1:2:4 (1- Cement

: 2- Coarse sand : 4- graded stone aggregates 20 mm

nominal size) and curing complete excluding cost of

formwork in (A) Foundation and Plinth

4 Providing formwork of ordinary timber planking so as to

give a rough finish including centering shuttering

strutting and propping etc. height of propping and

centering below supporting floor to ceiling not

exceeding 4 M. and removal of the same for in situ 47.00 Sqm 255.72

reinforced concrete and plain concrete work in. (C)

Vertical surface such as walls (any thickness) partitions

and the like including attached buttresses & string

course & the like.

5 Providing and laying cement concrete work 1:2:4 (1- 3.76 cu.m

Cement : 2- Coarse sand : 4- graded stone aggregates

20 mm nominal size) and curing complete excluding

cost of formwork and reinforcement for reinforced

concrete work in (A) Foundations, footings, Base or

columns and Mass concrete

6 Providing 15mm thick cement plaster in single coat on

Rough (Similar)side of single or half brick walls for

interior plastering upto floor two level and finished even 33.70 Sqm 163.67

and smooth in (ii) Cement mortar 1:4 (1-cement :4-

7 Cutting edge Providing fabricating and placing cutting

edge and curbs as per design

and drawing manufactured from structural steel or M.S.

plate confirming to 0.314 MT 87934.00

ISS 226-1962 incl. Riveting, welding etc. complete. incl.

m.s.bars, anchor

bolts and structural steel etc complete.

8 Providing and fixing concealed center point to wall

ceiling & floor CPVC (SDR 13.5) PIPE having National

Sanitation Foundation (NSF) seal for potable water of

following dia. nominal bore tube fittings and clamps

including making good the wall, ceiling and floor etc.

complete. [B] 20 mm.

9 Providing and fixing Gun metal check or non-return

Volume-III, PRICE BID VKV RWSS

fullway wheel valve.

10 Purchasing & supplying at site of works, with Railway

freight, loadding, unloading, carting, etc.

complete such as joints, channels, angles, iron rails,

11 Chain Pulley Block

Providing chain pulley block with triple gear arrangement,

lifting hook, laod chain & hand chain & locking device etc.

2 T Manually Operated

12 Providing and casting in situ mass cement concrete in

grade M-10 (approx. corresp. to prop. 1:3:6) using

granite quartzite trap metal of size 12 mm to 25 mm 38.36 Cum 3662.00

incl. consolidation curing etc. complete. without

13 Providing and casting in situ C.C. In grade M-15

(approx. Corresp. To prop 1:2:4) (proportions as per

mix design or as per Table 9 of IS456 2000 in masses

by weigh batching )using granite, quartzite trap metal of

size 6 mm to 20 mm for RCC work, including

scaffolding centering, formwork, needle vibrated 47.96 Cum 4732.00

consolidation, curing comp. up to 6 meter depth or

hight (excluding cost of reinforcement and neat

finishing) with centering and shuttering/deshuttering

etc. comp. for structure for other than water retaining.

Footing(without formwork)

14 Excavation for foundation upto 1.5 M. depth including

sorting out and stacking of useful materials & disposing

of the excavated stuff upto 50M. lead. (a) Loose or soft 31.76 Cu.Mt. 121.77

A) 0.0 to1.5 mt. Depth.

15 Brick work using common Brunt clay building bricks

having crushing strengath not less that 35 kg./sq.c.m in

foundation and plinth in cement mortar 1:6 (1 cement : 20.83 Cu.Mt. 3390.61

(B) Conventional up to PL

16 Brick work using common Brunt clay building bricks having

crushing strengath not less that 35 kg./sq.c.m for super 0.20 Cu.Mt. 3669.48

structure in cement mortar 1:6 (1 cement : 6 fine sand)

17 Providing TMT Bar FE 415 Reinforcement for RCC work

including bending, binding and placing in position complete 19.13 Kg. 67.65

up to floor two level.

18 Providing and laying cement concrete work 1:2:4 (1-

Cement : 2- Coarse sand : 4- graded stone aggregates

mm nominal size) and curing complete excluding cost of

formwork and reinforcement for reinforced concrete work

in (D) Columns, Pillars posts and struts upto floor two

19 Providing 15mm thick cement plaster in single coat on 36.18 Sq.Mt. 182.95

Volume-III, PRICE BID VKV RWSS

Rough (Similar)side of single or half brick walls for interior

plastering upto floor two level and finished even and

smooth in (i) Cement mortar 1:3 (1-cement:3-sand)

20 Steel work welded in butt up section, framed work including

cutting, hoisting, fixing in position and applying a priminga

coat of red lead paint. (A) In beams and joists channels

angles, tees, flats, with connecting cleats as in main and

cross beems, hip and jack ragfters, purlins connected to

common rafters and the like.

21 Providing Supplying and Installing Rotationally moulded

HDPE storage tank of approved make including all taxes

transportation octroi etc. Complete.

21.1 For 5000 Liter cap.

21.2 For 10000 Liter cap.

22 Providing, Supplying & Installatining P.P. PAC Transfer Pump

with its necessary accessarioes (Capacity 1 m3/hr, 30 Mtr. 2.00 No. 139240.00

23 Providing and Supplying and erecting Direct On-line

Electronics Starter. Rating relay (variable current setting)

directly operated in totally insulated elegant enclosure and

18 Amp. Rating power relay with start - stop button for

single phase operation up to 3 HP as per complete erected 2.00 No. 878.00

on P.W. Block with following features.Low voltage cut off

below 130 VHigh voltage cut off above 270 VOverload

protectionIndicating LEDs for motor on lv, hv & overload

tripping. [Cat.II]

24 Providing laying and jointing in true line and level U.P.V.C.

Pipe ( SCH- 40) for cold water including fittings make

PRINCE / SUPREME / ASTRAL / FINOLEX or equivalent as

approved by Engineer In Charge. Pipe shall be fixed on the

wall with the help of clamp at every two metre C/C or shall

be concelled as directed including necessary fittings etc.

including testing of pipe and joints and fixing the same with

adhesive solvent, including cost of all materials.

24.1 25 mm dia. U.P.V.C. Pipe ( SCH- 40)

24.2 50mm dia. U.P.V.C. Pipe ( SCH- 40)

25 Providing and fixing chromium plated brass half trun flush

cock of approved quality including fixing in pipe line etc.

Volume-III, PRICE BID VKV RWSS

26 Providing, Supplying & Fixing approved make lron clad or

metal slaab four pole change over switch 415v. 2.00 No. 17738.00

200 AMP / 250 AMP Cat-iii

27 Providing and fixing 600mm x 450 mm bevelled edge

mirrror of superior glass mounted on 6mm thick A.C. sheet

or plywood sheet and fixing to wooden pluge with C.P. brass

screws and washers.

28 Filling availabe excavated earth (Excluding rock) in trenches

plinth, sides of foundation etc. in layers not exceeding

cm in depth consolidating each deposited layer by ramming

29 Filling in foundation and plinth with murrum or selected soil

in layers of 20 cm thickness including watering ramming and 35.16 Cum 267.08

consoliating etc. complete.

30 Providing and laying cement concrete flooring 1:2:4 (1

cement : 2 course sand : 4 graded stone aggregate 20 mm

nominal size) laid in one layer finished with a floating coat

of near cement. (40 mm thick)

31 Distempering with dry distemper of approved brand and

manufacture (two coats) and of required shade on wall

surfaces of given an even shade, over and including a

priming coat of whiting after thoroughly brooming the

surface free from mortar dropping and other foreign

Rupees Fourteen Lac Thirty Six Thousand Four Hundred Sixty Four & Paise Eighty

I / We am / are willing to carry out the work at______________________________% above

/ Below percent (should be written in figure and words) of the estimated rates mentioned

above amount of my / our tender works out as under.

Estimated amount put to tender: Estimated amount put to Tender

Deduct________% Below Add________% above

Executive Engineer

SIGNATURE OF CONTRACTOR Public Health Works Division

Volume-III, PRICE BID VKV RWSS

ITEM NO. 1 Excavation for foundation upto 1.5 m depth including sorting out and

stacking of useful materials and disposing off the excavated stuff upto

Meter lead.(A) Loose or soft soil

1.1. Any soil which generally yields to the application of pickaxes and shovels, phawaras,

rakes or any such ordinary excavating implement or organic soil, gravel, silt,

sand turfloam, clay, peat etc., fall under this category.

2.0 Clearing the site :

2.1 The site on which the structure is to be built shall be cleared and all

obstructions, loose stone, materials and rubbish of all kind, bush, wood

and trees shall be removed as directed: The materials so obtained shall

be property of the Government and be conveyed and stacked as directed within

50 M. lead. The roots of the trees coming in the sides shall be cut and coated

with a hot asphalt.

2.2 The rate of site clearance is deemed to be included in the rate of earth work for which

no extra will be paid.

3.0 Setting out: After clearing the site, the center lines will be given by the Engineer-in-

charge. The contractor shall assume full responsibility for alignment, elevation

and dimension of each and all parts of the tractor shall assume fu; responsibility

for alignment elevation and dimension of each and all parts of the work.

Contractor shall supply labourers, materials, etc. required for setting out the

reference marks and bench marks and shall maintain them a long as required and

4.0 Excavation : The excavation in foundation shall be carried out in true line and level and

shall have the width and depth as shown in the drawings or as directed. The

contractor shall do the necessary shoring and shutting or providing

necessary slopes to a safe angle, at his own cost. The payment for sue

precautionary measures shall be paid separately if not specified. The bottom of

the excavated area shall be evelled both longitudinally and transfersely as

directed by removing and watering as required. No earth filling will be allowed

for bringing it t o level, if by mistake or any; other reason excavation is made

deeper or wider that shwon on the plan or directed. The extra depth or

width shall be made up with concrete of same proportion as specified for

the foundation concrete at the cost of the contractor. The excavation

upto 1.5 m. depth shall be measured under this item.

5.0. Disposal of the excavated studd :

Volume-III, PRICE BID VKV RWSS

5.1. The excavated stuff of the selected type shall be used in filling the trenches and plinth

or levelling the ground in layers including ramming and watering etc.

5.2. The balance of the excavated quantity shall be removed by the contractor from the site

of work to a place as directed with lead upto 50 M. and all lift.

6.0. Mode of Measurement and Payment:

6.1. The measurement of excavation in trenches for foundation shall be made according to

the sections of trenches shown on the drawing or as per sections given by the

Engineer-in-charge. No payment shall be made for surplus excavation made in

excess of above requirements or due to slopping and sloping back as found

necessary on account of conditions of soil and requirements of safety.

6.2. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price

ITEM NO. 2 Providing and laying cement concrete 1:5:10 (1- Cement : 5- Coarse sand :

10- hand broken stone aggregates 40 mm nominal size) and curing complete

excluding cost of formwork in (A) Foundation and Plinth

1.0. Materials:

1.1. Water shall conform to M-l. Cement shall conform to M-3. Sand shall conform to M-6.

Stone aggregate 40 mm. nominal size shall conform to M-12.

2.0. Workmanship:

2.1.1. Before starting concrete bed of foundation treaches shall be cleared of all

loose materials, levelled, watered and rammed as directed.

2.2. Proportion of Mix :

2.2.1. The Proportion of cement, sand and coarse aggregate shall be one part of cement,

parts of sand, 8 parts of stone aggregates and shall so measured by volume.

2.3.1. The concrete shall be mixed in a mechanical mixer at the site of work. Hand

mixing may however be lowed for smaller quantity of work if approved by the

Engineer-in-charge. When hand mixing is permitted by the Engineer-in-charge in

case of break-down of machineries and in the interest of the work, it shall be

carried out on a water tight platform and care shall be taken to ensure that

mixing is continued until the mass is uniform in colour and consistency. However

such cases 10% more cement than otherwise required shall have to be

used without any extra cost. The mixing in mechanical mixer shall be

done for a period 1 to 2 minutes. The quantity of water shall be

Volume-III, PRICE BID VKV RWSS

sufficient to produce a dense concrete of required workability for the

2.4. Transporting & Placing the concrete :

2.4.1. The concrete shall be handled from the place of mixing to the final position in not

more than 15 minutes by the method s directed and shall be placed into its

final position, compacted and finished within 30 minutes of mixing with

water i.e. before the setting commences.

2.4.2. The concrete shall be laid in layers of 15 cms. to 20 cms.

2.5. Compacting:

2.5.1. The concrete shall be rammed with heavy iron rammers and rapidly to get the

required compaction and allow all the interestices to be filled with mortar.

2.6.1. After the final set, the concrete shall be kept continuosly wet, if required by ponding

for a period of not less than 7 days from the dale of placement.

3.0. Mode of Measurement and Payment:

3.1. The concrete shall be measured for its length, breadth and depth, limiting

dimensions to those specified on plans or directed.

3.2. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

ITEM NO. 3 Providing and laying cement concrete 1:2:4 (1- Cement : 2- Coarse sand :

4- graded stone aggregates 20 mm nominal size) and curing complete

excluding cost of formwork in

(A) Foundation and Plinth

1.0. Materials : Water shall conform to M-l. Cement shall conform to M-3. Sand shall

conform to M-6. Grit shall conform to M-8. Graded stone aggregate 20 mm.

nominal size shall conform to M-12.

2.1. The concrete mix is not required to be designed by preliminary tests. The proportion of

the concrete mix shall be 1 : 2 : 4 (1 cement: 2 coarse sand ; 4 graded stone

aggregate 10 mm. nominal size) by volume. Concrete work shall have exposed

concrete surface or as specified in the item.

2.2. The designation ordinary M-100, M-150, M-200, M-250 specified as per. I.S.

Corresponding approximately to 1 : 3 : 6, 1 : 2 : 4, 1 : 1 1/2 : 3 and 1:1:2 nominal

mix of ordinary concrete by volume respectively.

Volume-III, PRICE BID VKV RWSS

2.3. The ingredients required for ordinary concrete containing one beg of cement of

50 Kg. by weight (0.0342 Cu. M.) for different proportions of mix shall be as

Total quantity of dry

aggregate by volume per

Grade of Kgs. of cement to be Proportion of fine

concr taken as the sum of aggregate to coarse

ete individual volume of fine aggregate

and coarse aggregates,

M-100 (1 : 3: 6) 300 Liters Generally 1 : 2 for fine 34 Liters

aggregate to coarse

M-150 (1 : 2 : 4) 2.20 Liters aggregate by volume 32 Liters

but subject to and upper

160 Liters limit of 1 : 1 1/2 and 30 Liters

lower limit 1 :

M-250 ( 1:1:2) 100 Liters 27 Liters

2.4. The water cement ratios shall not more than those specified in the above table.

The cement content of the mix specified in the Table shall be increased if the

quantity of water in a mix has to be increased to overcome the difficulties of

placement and compaction so that the water-cement-ratio specified in the Table

is not exceeded.

2.5. Workability of the concrete shall be controlled by maintaining a water-cement-ratio

that is bound to give a concrete mix which is just sufficiently wet to be placed

and compacted without difficulty with the means available.

2.6. The maximum size of coarse aggregate shall be as large as possible within the limits

specified but in no case greater than one fourth of the minimum thickness of

the member, provided that the concrete can be placed without difficulty

so as to surround all reinforcement thoroughly and to fill the comers of the

2.7. For reinforced concrete work, coarse aggregates having a nominal size of 20 mm. are

generally considered satisfactory.

2.8. For heavily reinforced concrete members as in the case of ribs of main beams,

the nominal maximum size of coarse aggregate should usually be restricted to

5 mm. less than the minimum, clear distance between the main bars, or 5 mm.

less than the minimum cover to the reinforcement whichever is smaller.

2.9. Where the reinforcement is widely spaced as in solid slabs, limitations of size of the

aggregate may not be important and the nominal maximum size may sometimes

be as great as OF greater than the minimum cover.

Volume-III, PRICE BID VKV RWSS

2.10. Admixture may be used in concrete only with approval of Engineer-in-charge

based upon the evidence that with the passage of time, neither the

compressive strength of concrete is reduced nor are other requisite qualities of

concrete and steel impaired by the use of such admixtures.

3.0. Workmanship:

3.1. Proportioning : Proportioning shall be done by volume, except cement which shall be

measured in terms of bags of 50 Kg. weight. The volume of one such bag being

taken as 0.0342 Cu. metre. Boxes of suitable sizes shall be used for measuring

sand aggregate. The size of the boxes (internal) shall be 35 cms. x 25 cms. and

40 Cms. deep. While measuring the aggregate and sand, the box shall be filled

without shaking ramming or hammering. The proportioning of sand shall be on

the basis of its dry volume and in case of damp sand, allowances for bulkage shall

3.2.1. For all work, concrete shall “be mixed in a mechanical mixer which alongwith other

aecessories shall be kept in first class working condition and so maintained

throughout the construction. Measured quantity of aggregate, sand, cement

required for each batch shall be poured into the drum of the mechanical mixer

while it is continuously running. After about half a minute of dry mixing,

measured quantity of water required for each batch of concrete mix shall be

added gradually and mixing continued for another one and a half minute. Mixing

shall be. continued till materials are uniformly distributed and uniform colour of

the entire mass is obtained and each individual particle of the coarse aggregate

shows complete coating of mortar containing its proportionate amount of

cement. In no case shall the mixing be done for less than 2 minutes after all

ingredients have been put into the mixer.

3.2.2. When hand mixing is permitted by the Engineer-in-charge for small jobs or for certain

other reasons, it shall be done on the smooth watertight platform large

enough to allow efficient turning over the ingredients of concrete before

and after adding water. Mixing platform shall be so arranged that no

foreign material gets mixed with concrete nor does the mixing water flow

out. Cement in required number of bags shall be placed in a uniform layer on top

of the measured quantity of fine and coarse aggregate, which shall also be

spread in a layer of uniform thickness on the mixing platform. Dry coarse and

fine aggregate arid cement shall then be mixed thoroughly by turning over to get

a mixture to uniform colour. Specified quantity of water shall then be added

gradually through a rose-can and the mass turned over till a mix of

required consistency is obtained. In hand mixing, quantity of cement shall be

increased by 10 percent above that specified.

3.2.3. Mixers which have been out of use for more than 30 minutes shall be throughly

cleaned before putting in a new batch. Unless otherwise agreed to by the

Volume-III, PRICE BID VKV RWSS

Engineer-in-charge the first batch of concrete from the mixture shall

contain only two thirds of normal quantity of coarse aggregate. Mixing

plant shall be thoroughly cleaned before changing from one type of

cement to another.

3.3. Consistency: 3.3.1. The degree of consistency which shall depend upon the nature of

the work and methods of vibration of concrete, shall be determined by regular

slump tests in accordance with I.S. 1199-1959. The slump of 10 mm. to 25 mm.

shall be-adopted when vibrators are used and 80 mm. when vibrators are not

4.4. Inspection:

3.4.1. Contractor shall give the Engineer-in-charge due notice before placing any

concrete in the forms to permit him to inspect and accept the false work

and forms as to their strength, alignment, and general fitness but such inspection

shall not relieve the contractor of his responsibility for the safety of men,

machinery, materials and for results obtained. Immediately before concreting,

all forms shall be thoroughly cleaned.

3.4.2. Centering design and its erection shall be got approved from the Engineer-in-charge.

One carpenter with helper shall invariably be kept present throughout the

period of concreting. Movement of labour and other persons shall be

totally prohibited for reinforcement laid in position. For access to different

parts, suitable mobile platforms shall be provided so that steel reinforcement in

position is not disturbed. For ensuring proper cover, mortar blocks of suitable

size shim be cast and tied to the reinforcement. Timber, kapachi or metal pieces

shall not be used for this purpose.

3.5. Transporting and laying:

3.5.1. The method of transporting and placing concrete shall be as approved. Concrete shall

be so transported and placed that no contemination segregation or loss of its

constituent material takes place. All form work shall be cleaned and made free

from standing water, dust, show or ice immediately before placing of concrete.

No concrete shall he, placed in any part of the structure untill the approval of

the Engineer-in-charge has been obtained.

3.5.2. Concreting shall proceed continuously over the area between construction

joints. Fresh concrete shall not be placed against concrete which has been in

position for more than 30 minutes unless a proper construction joint is formed.

Concrete shall be compacted in its final position within 30 minutes of its

discharge from the mixer. Except where otherwise agreed to by the Engineer-in-

charge concrete shall be deposited in horizontal layers to a compacted depth of

not more than 0.45 metre when internal vibrators are used and not exceeding

0.30 metre in all other cases.

3.5.3. Unless otherwise agreed to by the Engineer-in-charge, concrete shall not be dropped

Volume-III, PRICE BID VKV RWSS

into place from a height exceeding 2 metres. When truoking or chutes arc used

they shall be kept close and used in such a way as to avoid segregation. When

concreting has to be resumed on a surface which has hardened, it shall

be roughened, swept clean, thoroughly wetted and covered with a 13 mm.

thick layer of mortar composed of cement and sand in the same ratio as in the

concrete mix itself. This 13 mm. layer of mortar shall be freshly mixed and

placed immediately before placing of new concrete. Where concrete has not

fully hardened, all laitance shall be removed by scrubbing the wet surface with

wire or bristle brushes, care being taken to avoid dislodgernent of any

panicles of coarse aggregate. The surface shall then be thoroughly wetted,

all free water removed and then coated with neat cement grout. The first layer

of concrete to be placed on this surface shall not exceed 150 mm. in thickness

and shall be well rammed against old work, particular attention being given to

corners and close spots.

3.5.4. All concrete shall be compacted to produce a dense homogeneous mass with

the assistance of vibrators unless, otherwise permitted by the Engineer-in-

charge for exceptional cases, such as concreting under water, where vibrators

cannot be used. Sufficient vibrators in serviceable condition shall be kept at site

so that spare equipment is always available in the event of breakdowns.

Concrete shall be judged to be compacted when the mortar fills the spaces

between the coarse aggregate and begins to cream

up to form an even surface. Compaction shall be completed before the initial setting starts

i.e. within 30 minutes of addition of wafer to dry mixture. During compaction, it

shall be observed that needle vibrators are not applied on reinforcement which is

likely to destroy the bond between concrete and reinforcement.

3.6. Curing: Immediately after compaction, concrete shall be protected from weather,

including rain, running water, shocks, vibration, traffic, rapid temperature

changes, frost and drying out process. It shall be covered with wet

sacking, hassain or other similar absorbant material approved, soon after the

initial set and shall be kept continuously wet for a period of not less than 14 days

from the date of placement. Masonary work over foundation concrete may be

started after 48 hours of its laying but curing of concrete shall be continued for a

minimum period of 14 days.

3.7. Sampling and Testing of concrete :

3.7.1. Samples from fresh concrete shall be taken as per I.S. 1199-1959 and cubes shall be

made, cured and tested at 7 days or 28 days as per requirements in accordance

with I.S. 516-1959. A random sampling procedure shall be adopted to ensure that

each concrete batch shall have a resonable chance of being tested i.e. the

sampling should be spread over the entire period of concreting and cover all

mixing units. The minimum frequency of sampling of concrete of each

grade shall be in accordance with following :

Volume-III, PRICE BID VKV RWSS

Quantity of concrete Quantity of concrete in

No. of samples No. of samples

in the work the works

51 and above 4 + one additional for each additional 50 M. or part thereof.

NOTE : At least one sample shall be taken from each shift. Ten test specimens

shall be made from each sample, five for testing at 7 days and the remaining

five at 28 days. The samples of concrete shall be taken on each day of the

concreting as per above frequency. The number of specimens may be

suitably increased as deemed necessary by the Engineer-in-charge when

procedure of tests given above reveals a poor quality of concrete and in other

3.7.2. Tire average strength of the group of cubes cast for each day shall not be less than

the specified cube strength of 150 Kg/Cm at 28 days. 20% of the cubes cast for

each day may have value less than the specified strength provided the lowest

value is not less than 85% of the specified strength. If the concrete made

in accordance with the proportions given for a particular grade docs not

yield the specified strength, such concrete shall be classified as belonging to the

appropriate lower, grade concrete made in accordance with the proportions

given for a particular grade shall not, however, be placed in a higher grade on

the ground that the test strength are higher than the minimum specified.

3.8. Stripping:

3.8.1. The Engineer-in charge shall be informed in advance by the contractor of his intention

lo strike the form work. While fixing the time for removal of form work, due

consideration shall be given to local conditions, character of the structure, the

weather and other condition that influence the setting of concrete and pf the

materials used in the mix. In normal circumstances (generally where

temperatures are above 20 ° C) and where ordinary concrete is used,

forms may be struck after expiry of periods specified item of form work.

3.8.2. All form work shall be removed without causing any shock or vibration as would

damage the concrete. Before the soffit and struts are removed, the concrete

surface shall be exposed, where necessary in order to ascertain that the

concrete has sufficiently hardened. Centring shall be gradually and

uniformly lowered in such manner as to permit the concrete to take

stresses due to its own weight uniformly and gradually. Where internal metal ties

are permitted, they or their removable parts shall be extracted without

causing any damage to the, concrete and remaining holes filled with

mortar. No permanently embeded metal part shall have less than 25 mm. cover

to the finished concrete surface. Where it is intended to re-use the form work,

Volume-III, PRICE BID VKV RWSS

it shall be cleaned and made good to the satisfaction of the Engineer-in-

charge. After removal of form work and shuttering, the Executive Engineer

shall inspect the work and satisfy by random checks that concrete

produced is of good quality.

3.8.3. Immediately after the removal of forms, all exposed bolts etc., passing through the

cement concrete member and used for shuttering or any other purpose shall be

cut inside the cement concrete member to a depth of at least 25 mm. below

the surface of the concrete and the resulting holes be filled by cement mortar.

All fine caused by form joints, all cavities produced by the removal of form ties

and all other holes and depressions honeycomb spots, broken edges or corners

and other defects shall be thoroughly cleaned, saturated with water and

carefully pointed and rendered true with mortar of cement and fine

aggregate mixed in the proportions used in the grade of concrete that is-being

finished and of as dry consistency as is possible to use. Considerable pressure

shall be applied in filling and pointing to ensure thorough Riling in all voids.

Surfaces which are pointed shall be kept moist for a period of 24 hours. If rock

pockets/honeycombs in the opinion of the Engineer in- charge are of such an

extent or character to effect the strength of the structure materially or to

endanger the, life of the steel reinforcement, he may declare the

concrete defective and require the removal and replacement of the portions of

the structure affected.

4.0. Mode of Measurement and Payment:

4.1. The consolidated cubical contents of concrete work as specified in item shall be

measured. The concrete laid in excess of section shown on drawings or as

directed shall not be measured. No deduction shall be made for (a) Ends of dis-

similar materials such as joits, beams, posts, girders, rafters, purline trusses,

corbels and steps etc upt 500 Sq. Cm. in section. (b) Opening upto 0.1 Sq. M.

4.2. The rate includes cost of all materials, labour, tools and plant required for

mixing, placing, position, vibrating and compacting, finishing, as directed,

curing and all other incidental expenses for producing concrete lied

strength The rate excludes the cost of form work.

4.3. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

ITEM NO. 4 Providing formwork of ordinary timber planking so as to give a rough

finish including centering shuttering strutting and propping etc. height of

propping and centering below supporting floor to ceiling not exceeding 4 M.

and removal of the same for in situ reinforced concrete and plain concrete

work in. (C) Vertical surface such as walls (any thickness) partitions and the

like including attached buttresses & string course & the like.

Volume-III, PRICE BID VKV RWSS

specifications demand strength to hold wet concrete, rigidity to maintain shape,

and tight joints to prevent grout leakage, ensuring accurate dimensions for the

final structure. Key requirements include ease of erection/stripping without

concrete damage, suitability for reuse (economy), and lightweight, warp-

resistant materials for efficiency, with specific standards for timber (flat, crack-

free) or steel (thickness, countersunk bolts) for different components like

columns or slabs, meeting tolerances specified in drawings.

Key Specifications & Requirements

 Strength & Stability: Must withstand dead loads (concrete weight) and live loads

(workers, equipment) without bulging, sagging, or failing.

 Rigidity & Shape Retention: Efficient bracing (horizontal/vertical) and strong joints

prevent distortion, maintaining designed dimensions and lines.

 Accuracy: Erected precisely to dimensions, lines, and levels shown in drawings;

includes specified chamfers or mouldings.

 Leakage Control: Tight, sealed joints prevent cement grout leakage, ensuring a

smooth, dense concrete surface.

 Ease of Erection & Stripping: Designed for easy, safe assembly and removal without

damaging concrete or formwork, facilitating reuse.

 Material Quality: Should be durable, resistant to warping/swelling (especially

timber), affordable, and reusable (e.g., steel for many reuses, timber for smaller

 Surface Finish: Smooth surfaces produce better concrete finishes, reducing post-

construction work.

Material-Specific Notes

 Timber: Boards should be flat, free from cracks/burrs, and suitably reinforced.

 Steel: Used for high reuse; requires specific thickness to stay true to shape; bolts

should be countersunk.

 Supports: Structural steel tubes used for props need a minimum wall thickness (e.g.,

Design & Construction Quality

 Propping/Bracing: Must be adequate and stable for both horizontal and vertical

 Inspection: Design should allow safe access for inspection.

 Components: Use approved ties and spacers; ensure components fit tightly.

4.3. Mode Of Payment:- The rate-shall be for a unit of one Square Metre as per Price Bid.

Item no:-5 Providing and laying cement concrete work 1:2:4 (1- Cement : 2- Coarse sand

: 4- graded stone aggregates 20 mm nominal size) and curing complete

excluding cost of formwork and reinforcement for reinforced concrete work

in (A) Foundations, footings, Base or columns and Mass concrete

1.0. Materials : Water shall conform to M-l. Cement shall conform to M-3. Sand shall

conform to M-6. Grit shall conform to M-8. Graded stone aggregate 20 mm.

nominal size shall conform to M-12.

2.1. The concrete mix is not required to be designed by preliminary tests. The proportion of

the concrete mix shall be 1 : 2 : 4 (1 cement: 2 coarse sand ; 4 graded stone

aggregate 10 mm. nominal size) by volume. Concrete work shall have exposed

Volume-III, PRICE BID VKV RWSS

concrete surface or as specified in the item.

2.2. The designation ordinary M-100, M-150, M-200, M-250 specified as per. I.S.

Corresponding approximately to 1 : 3 : 6, 1 : 2 : 4, 1 : 1 1/2 : 3 and 1:1:2 nominal

mix of ordinary concrete by volume respectively.

2.3. The ingredients required for ordinary concrete containing one beg of cement of

50 Kg. by weight (0.0342 Cu. M.) for different proportions of mix shall be as

Total quantity of dry

aggregate by volume per

Grade of Kgs. of cement to be Proportion of fine

concr taken as the sum of aggregate to coarse

ete individual volume of fine aggregate

and coarse aggregates,

M-100 (1 : 3: 6) 300 Liters Generally 1 : 2 for fine 34 Liters

aggregate to coarse

M-150 (1 : 2 : 4) 2.20 Liters aggregate by volume 32 Liters

but subject to and upper

160 Liters limit of 1 : 1 1/2 and 30 Liters

lower limit 1 :

M-250 ( 1:1:2) 100 Liters 27 Liters

2.4. The water cement ratios shall not more than those specified in the above table.

The cement content of the mix specified in the Table shall be increased if the

quantity of water in a mix has to be increased to overcome the difficulties of

placement and compaction so that the water-cement-ratio specified in the Table

is not exceeded.

2.5. Workability of the concrete shall be controlled by maintaining a water-cement-ratio

that is bound to give a concrete mix which is just sufficiently wet to be placed

and compacted without difficulty with the means available.

2.6. The maximum size of coarse aggregate shall be as large as possible within the limits

specified but in no case greater than one fourth of the minimum thickness of

the member, provided that the concrete can be placed without difficulty

so as to surround all reinforcement thoroughly and to fill the comers of the

2.7. For reinforced concrete work, coarse aggregates having a nominal size of 20 mm. are

generally considered satisfactory.

2.8. For heavily reinforced concrete members as in the case of ribs of main beams,

the nominal maximum size of coarse aggregate should usually be restricted to

5 mm. less than the minimum, clear distance between the main bars, or 5 mm.

Volume-III, PRICE BID VKV RWSS

less than the minimum cover to the reinforcement whichever is smaller.

2.9. Where the reinforcement is widely spaced as in solid slabs, limitations of size of the

aggregate may not be important and the nominal maximum size may sometimes

be as great as OF greater than the minimum cover.

2.10. Admixture may be used in concrete only with approval of Engineer-in-charge

based upon the evidence that with the passage of time, neither the

compressive strength of concrete is reduced nor are other requisite qualities of

concrete and steel impaired by the use of such admixtures.

3.0. Workmanship:

3.1. Proportioning : Proportioning shall be done by volume, except cement which shall be

measured in terms of bags of 50 Kg. weight. The volume of one such bag being

taken as 0.0342 Cu. metre. Boxes of suitable sizes shall be used for measuring

sand aggregate. The size of the boxes (internal) shall be 35 cms. x 25 cms. and

40 Cms. deep. While measuring the aggregate and sand, the box shall be filled

without shaking ramming or hammering. The proportioning of sand shall be on

the basis of its dry volume and in case of damp sand, allowances for bulkage shall

3.2.1. For all work, concrete shall “be mixed in a mechanical mixer which alongwith other

aecessories shall be kept in first class working condition and so maintained

throughout the construction. Measured quantity of aggregate, sand, cement

required for each batch shall be poured into the drum of the mechanical mixer

while it is continuously running. After about half a minute of dry mixing,

measured quantity of water required for each batch of concrete mix shall be

added gradually and mixing continued for another one and a half minute. Mixing

shall be. continued till materials are uniformly distributed and uniform colour of

the entire mass is obtained and each individual particle of the coarse aggregate

shows complete coating of mortar containing its proportionate amount of

cement. In no case shall the mixing be done for less than 2 minutes after all

ingredients have been put into the mixer.

3.2.2. When hand mixing is permitted by the Engineer-in-charge for small jobs or for certain

other reasons, it shall be done on the smooth watertight platform large

enough to allow efficient turning over the ingredients of concrete before

and after adding water. Mixing platform shall be so arranged that no

foreign material gets mixed with concrete nor does the mixing water flow

out. Cement in required number of bags shall be placed in a uniform layer on top

of the measured quantity of fine and coarse aggregate, which shall also be

spread in a layer of uniform thickness on the mixing platform. Dry coarse and

fine aggregate arid cement shall then be mixed thoroughly by turning over to get

a mixture to uniform colour. Specified quantity of water shall then be added

Volume-III, PRICE BID VKV RWSS

gradually through a rose-can and the mass turned over till a mix of

required consistency is obtained. In hand mixing, quantity of cement shall be

increased by 10 percent above that specified.

3.2.3. Mixers which have been out of use for more than 30 minutes shall be throughly

cleaned before putting in a new batch. Unless otherwise agreed to by the

Engineer-in-charge the first batch of concrete from the mixture shall

contain only two thirds of normal quantity of coarse aggregate. Mixing

plant shall be thoroughly cleaned before changing from one type of

cement to another.

3.3. Consistency: 3.3.1. The degree of consistency which shall depend upon the nature of

the work and methods of vibration of concrete, shall be determined by regular

slump tests in accordance with I.S. 1199-1959. The slump of 10 mm. to 25 mm.

shall be-adopted when vibrators are used and 80 mm. when vibrators are not

4.4. Inspection:

3.4.1. Contractor shall give the Engineer-in-charge due notice before placing any

concrete in the forms to permit him to inspect and accept the false work

and forms as to their strength, alignment, and general fitness but such inspection

shall not relieve the contractor of his responsibility for the safety of men,

machinery, materials and for results obtained. Immediately before concreting,

all forms shall be thoroughly cleaned.

3.4.2. Centering design and its erection shall be got approved from the Engineer-in-charge.

One carpenter with helper shall invariably be kept present throughout the

period of concreting. Movement of labour and other persons shall be

totally prohibited for reinforcement laid in position. For access to different

parts, suitable mobile platforms shall be provided so that steel reinforcement in

position is not disturbed. For ensuring proper cover, mortar blocks of suitable

size shim be cast and tied to the reinforcement. Timber, kapachi or metal pieces

shall not be used for this purpose.

3.5. Transporting and laying:

3.5.1. The method of transporting and placing concrete shall be as approved. Concrete shall

be so transported and placed that no contemination segregation or loss of its

constituent material takes place. All form work shall be cleaned and made free

from standing water, dust, show or ice immediately before placing of concrete.

No concrete shall he, placed in any part of the structure untill the approval of

the Engineer-in-charge has been obtained.

3.5.2. Concreting shall proceed continuously over the area between construction

joints. Fresh concrete shall not be placed against concrete which has been in

position for more than 30 minutes unless a proper construction joint is formed.

Concrete shall be compacted in its final position within 30 minutes of its

Volume-III, PRICE BID VKV RWSS

discharge from the mixer. Except where otherwise agreed to by the Engineer-in-

charge concrete shall be deposited in horizontal layers to a compacted depth of

not more than 0.45 metre when internal vibrators are used and not exceeding

0.30 metre in all other cases.

3.5.3. Unless otherwise agreed to by the Engineer-in-charge, concrete shall not be dropped

into place from a height exceeding 2 metres. When truoking or chutes arc used

they shall be kept close and used in such a way as to avoid segregation. When

concreting has to be resumed on a surface which has hardened, it shall

be roughened, swept clean, thoroughly wetted and covered with a 13 mm.

thick layer of mortar composed of cement and sand in the same ratio as in the

concrete mix itself. This 13 mm. layer of mortar shall be freshly mixed and

placed immediately before placing of new concrete. Where concrete has not

fully hardened, all laitance shall be removed by scrubbing the wet surface with

wire or bristle brushes, care being taken to avoid dislodgernent of any

panicles of coarse aggregate. The surface shall then be thoroughly wetted,

all free water removed and then coated with neat cement grout. The first layer

of concrete to be placed on this surface shall not exceed 150 mm. in thickness

and shall be well rammed against old work, particular attention being given to

corners and close spots.

3.5.4. All concrete shall be compacted to produce a dense homogeneous mass with

the assistance of vibrators unless, otherwise permitted by the Engineer-in-

charge for exceptional cases, such as concreting under water, where vibrators

cannot be used. Sufficient vibrators in serviceable condition shall be kept at site

so that spare equipment is always available in the event of breakdowns.

Concrete shall be judged to be compacted when the mortar fills the spaces

between the coarse aggregate and begins to cream

up to form an even surface. Compaction shall be completed before the initial setting starts

i.e. within 30 minutes of addition of wafer to dry mixture. During compaction, it

shall be observed that needle vibrators are not applied on reinforcement which is

likely to destroy the bond between concrete and reinforcement.

3.6. Curing: Immediately after compaction, concrete shall be protected from weather,

including rain, running water, shocks, vibration, traffic, rapid temperature

changes, frost and drying out process. It shall be covered with wet

sacking, hassain or other similar absorbant material approved, soon after the

initial set and shall be kept continuously wet for a period of not less than 14 days

from the date of placement. Masonary work over foundation concrete may be

started after 48 hours of its laying but curing of concrete shall be continued for a

minimum period of 14 days.

3.7. Sampling and Testing of concrete :

3.7.1. Samples from fresh concrete shall be taken as per I.S. 1199-1959 and cubes shall be

made, cured and tested at 7 days or 28 days as per requirements in accordance

Volume-III, PRICE BID VKV RWSS

with I.S. 516-1959. A random sampling procedure shall be adopted to ensure that

each concrete batch shall have a resonable chance of being tested i.e. the

sampling should be spread over the entire period of concreting and cover all

mixing units. The minimum frequency of sampling of concrete of each

grade shall be in accordance with following :

Quantity of concrete Quantity of concrete in

No. of samples No. of samples

in the work the works

51 and above 4 + one additional for each additional 50 M. or part thereof.

NOTE : At least one sample shall be taken from each shift. Ten test specimens

shall be made from each sample, five for testing at 7 days and the remaining

five at 28 days. The samples of concrete shall be taken on each day of the

concreting as per above frequency. The number of specimens may be

suitably increased as deemed necessary by the Engineer-in-charge when

procedure of tests given above reveals a poor quality of concrete and in other

3.7.2. Tire average strength of the group of cubes cast for each day shall not be less than

the specified cube strength of 150 Kg/Cm at 28 days. 20% of the cubes cast for

each day may have value less than the specified strength provided the lowest

value is not less than 85% of the specified strength. If the concrete made

in accordance with the proportions given for a particular grade docs not

yield the specified strength, such concrete shall be classified as belonging to the

appropriate lower, grade concrete made in accordance with the proportions

given for a particular grade shall not, however, be placed in a higher grade on

the ground that the test strength are higher than the minimum specified.

3.8. Stripping:

3.8.1. The Engineer-in charge shall be informed in advance by the contractor of his intention

lo strike the form work. While fixing the time for removal of form work, due

consideration shall be given to local conditions, character of the structure, the

weather and other condition that influence the setting of concrete and pf the

materials used in the mix. In normal circumstances (generally where

temperatures are above 20 ° C) and where ordinary concrete is used,

forms may be struck after expiry of periods specified item of form work.

3.8.2. All form work shall be removed without causing any shock or vibration as would

damage the concrete. Before the soffit and struts are removed, the concrete

surface shall be exposed, where necessary in order to ascertain that the

concrete has sufficiently hardened. Centring shall be gradually and

Volume-III, PRICE BID VKV RWSS

uniformly lowered in such manner as to permit the concrete to take

stresses due to its own weight uniformly and gradually. Where internal metal ties

are permitted, they or their removable parts shall be extracted without

causing any damage to the, concrete and remaining holes filled with

mortar. No permanently embeded metal part shall have less than 25 mm. cover

to the finished concrete surface. Where it is intended to re-use the form work,

it shall be cleaned and made good to the satisfaction of the Engineer-in-

charge. After removal of form work and shuttering, the Executive Engineer

shall inspect the work and satisfy by random checks that concrete

produced is of good quality.

3.8.3. Immediately after the removal of forms, all exposed bolts etc., passing through the

cement concrete member and used for shuttering or any other purpose shall be

cut inside the cement concrete member to a depth of at least 25 mm. below

the surface of the concrete and the resulting holes be filled by cement mortar.

All fine caused by form joints, all cavities produced by the removal of form ties

and all other holes and depressions honeycomb spots, broken edges or corners

and other defects shall be thoroughly cleaned, saturated with water and

carefully pointed and rendered true with mortar of cement and fine

aggregate mixed in the proportions used in the grade of concrete that is-being

finished and of as dry consistency as is possible to use. Considerable pressure

shall be applied in filling and pointing to ensure thorough Riling in all voids.

Surfaces which are pointed shall be kept moist for a period of 24 hours. If rock

pockets/honeycombs in the opinion of the Engineer in- charge are of such an

extent or character to effect the strength of the structure materially or to

endanger the, life of the steel reinforcement, he may declare the

concrete defective and require the removal and replacement of the portions of

the structure affected.

4.0. Mode of Measurement and Payment:

4.1. The consolidated cubical contents of concrete work as specified in item shall be

measured. The concrete laid in excess of section shown on drawings or as

directed shall not be measured. No deduction shall be made for (a) Ends of dis-

similar materials such as joits, beams, posts, girders, rafters, purline trusses,

corbels and steps etc upt 500 Sq. Cm. in section. (b) Opening upto 0.1 Sq. M.

4.2. The rate includes cost of all materials, labour, tools and plant required for

mixing, placing, position, vibrating and compacting, finishing, as directed,

curing and all other incidental expenses for producing concrete lied

strength The rate excludes the cost of form work.

4.3. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

Item no:-6 Providing 15mm thick cement plaster in single coat on Rough (Similar)side of

Volume-III, PRICE BID VKV RWSS

single or half brick walls for interior plastering upto floor two level and

finished even and smooth in (ii) Cement mortar 1:4 (1-cement :4-sand)Design

1.0. Materials: 1.1.

Water M-l. The cement mortar of proportion 1 : 4 shall conform to M-13.

2.0. Workmanship:

2.1. Scaffolding : Wooden ballies, bamboos, planks, treaties and other

scaffolding shall be sound. These shall be properly examined before

erection and use. Stage scaffolding shall be provided for ceiling plaster

which shall be independent of the walls.

2.2. Preparation of back-ground:

2.2.1. The surface shall be cleaned of all dust, loose mortar droppings, traces of

algae, efflorescence and other foreign matter by water or by brushing.

Smooth surface shall be roughened by wire brushing if it is not hard and

by racking if it is hard. In case of concrete surface, if a chemical retarder

has been applied to the form work, the surface shall be roughened by

wire brushing and all the resulting dust and loose particles cleaned off

and care shall be taken that none of the retarders is left on the surface.

Trimming of projections on brick/concrete surface where necessary shall

be carried out to get an even surface.

2.2.2. Raking of joints in case of masonry where necessary shall -be allowed to dry

out for sufficient period before carrying out the plaster work.

2.2.3. The work shall not be soaked but only damped evenly before applying the

plaster. If the surface becomes dry such area shall be moistened again.

2.2.4. For external plaster, the plastering operation shall be started from top floor

and carried downwards. For internal plaster, the plastering operations

may be started wherever the building frame and cladding work arc

ready and the temporary supporting ceiling resting on the wall of the

floor have been removed. Ceiling plaster shall be completed before

starting plaster to walls.

2.3. Applications of plaster :

2.3.1. The plaster about 15 x 15 cms. shall be first applied horizontally and vertically

al not more than 2 meters intervals over the entire surface to serve as

gauge. The surfaces of these gauges shall be truly in plane of the

finished plastered surface. The mortar shall then be applied in uniform

surface slightly more than the specified thickness, then brought to a true

Volume-III, PRICE BID VKV RWSS

working a wooden straight edge reaching across the gauges with small upward and

sideways movement at a time. Finally, the surface shall be finished off

true with a trowel or wooden float according as a smooth or a

sandy granular texture is required. Excessive trowelling or overworking

the float shall be avoided. All comers, arrises, angles and junctions be

truly vertical or horizontal as the case may be and shall be carefully

finished. Rounding or chamfering corners, arrises junctions etc. shall be

carried out with proper templates to the size required.

2.3.2. Cement plaster shall be used within half an hour after addition of water. Any

mortar or plaster which is partially set shall be rejected and removed

forthwith from the site.

2.3.3. In suspending the work at the end of the day, the plaster shall be left out

clean to the line both horizontally and vertically. When recommending

the plaster, the edges of the old work shall be scraped clean and wetted

with cement putty before plaster is applied to the adjacent areas to

enable the two to properly join together. Plastering work shall be closed

at the end of the day on the body of the wall arid nearer than 15 cm. to

any corners or arrises. Horizontal joints in plaster work shall not also

occur on parapet tops and copings as these invaiiably lead to leakage. No

portion of the surface shall be left out initially to be packed up later on.

2.3.4. Each coat shall be kept damp continuously rill the next coat is applied or for a

minimum period of 7 days. Moistening shall commence as soon as plaster

is hardened sufficiently. Soaking of walls shall be avoided and only as

much water as can be readily absorbed shall be used, excessive

evaporation on the sunny or windward side of building in hot air or dry

weather shall be prevented by handing mattings or gunny bags on the

outside of the plaster and keeping them wet.

3.0. Mode of Measurements & Payment:

3.1. The rate shall include the cost of all materials, labour and scaffolding etc.

involved in the operations described under workmanship.

3.2. All plastering shall be measured in square meters unless, otherwise specified.

Length, breadth or height shall be measured correct to a centimeter.

3.3. Thickness of the plaster shall be exclusive of (he thickness of the key i.e.

grooves or open joints in brick work, stone work etc. or space between

laths. Thickness of plaster shall be average thickness with minimum

10mm. at any point on this surface.

3.4. This item includes plastering upto floor two level.

3.5. The measurement of wall plastering shall be taken between the walls or

partition (dimensions before plastering being taken) for length and from

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the top of floor or skirting to ceiling for height. Depth of cover of cornices

if any shall be deducted.

3.6. Soffits of stairs shall be measured as plastering on ceilings. Flowing soffits shall

be measured separately.

3.7. For jambs, soffits, sills etc. for openings not exceeding 0.5 sq. ml. each in area

for ends of joits, beams, posts, girders, steps, etc. not exceeding 0.5 sq.

mt. each in area and for openings exceeding 0.5 sq. mt. and not

exceeding 3.00 sq. mt. in each area deductions and additions shall be

made in the following manner:

(a) No deductions shall be made for ends of joints, beams, posts etc. and openings

not exceeding 0.5 sq. mt. each and no addition shall be made for reveals,

jambs, soffits, sills etc. of these opening for finish to plaster around ends

of joints, beams posts etc.

(b) Deduction for openings exceeding 0.5 sq. mt. but not exceeding 3 sq. mt. each

shall be made as follows and no addition shall be made for reveals,

jambs, soffits, sills etc. of these openings.

(i) When both faces of all wall are plastered with same plaster, deduction shall be

made for one face only.

(ii) When two faces of wall are plastered with different types of plasters or if one,

faces is plastered and the other pointed, deductions shall be made from

the plaster or pointing on the side of frame for door, window etc. on

which width of reveals is less than that on the other side but no

deductions shall be made on the other side. Where width of reveals on

both faces of all are equal, deductions of 50% of area of opening on each

face shall be made from area of plaster and/or pointing as the case

3.8. For openings having door frames equal to projecting beyond the thickness of

wall, full deduction for opening shall be made from each plastered face of

3.9. In case of openings of area above 3 sq. mt. each, deduction shall be made for

opening but jambs, soffits and sills shall be measured.

3.10. Mode Of Payment:- The rate-shall be for a unit of one Sq.Meter as per Price

Item no:-7 Cutting edge Providing fabricating and placing cutting edge and curbs as per

design and drawing manufactured from structural steel or M.S. plate

confirming to ISS 226-1962 incl. Riveting, welding etc. complete. incl.

m.s.bars, anchor bolts and structural steel etc complete.

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Based on standard engineering practices (similar to MORTH and IS codes), the

specifications for the fabrication and placement of a cutting edge and well curb are

detailed below.

1. Material Specifications

 Structural Steel/M.S. Plate: The cutting edge, plates, and angle sections shall be

manufactured from structural mild steel, conforming to IS: 226-1962 (or the updated

IS: 2062 Grade A/B).

 Components: The assembly shall include the main MS cutting edge plate, angles

(e.g., ISA 100x100x12 mm or 150x150x12 mm), vertical stiffeners (6mm thick), M.S.

bars for anchorages, and anchor bolts.

 Weight: The cutting edge shall have a minimum weight, typically not less than 40 kg

per meter length, or as specified in the drawing.

 Shop/Site Fabrication: Fabrication can be done in a workshop or on-site, but it must

take place on a firm, level working platform.

 Bending: MS plates and angles must be bent to the required radius cold. Heating to

force the shape is generally not permitted.

 Welding/Riveting: All joints, including splices, shall be welded or riveted as per

design drawings to ensure structural continuity.

 Stiffeners: Vertical stiffeners (usually 6mm thick) shall be welded at specified

intervals to the angle section and horizontal plate to provide rigidity.

 Anchor Bars: M.S. bars and anchor bolts shall be welded to the cutting edge to

securely anchor it into the concrete of the well curb.

3. Placement and Alignment

 Survey Controls: The exact location of the well shall be marked on the ground using a

total station based on approved bridge drawings.

 Leveling: The cutting edge shall be assembled on wooden sleepers (or concrete

blocks) to maintain a true level and shape.

 Tolerances: The finished, assembled cutting edge must be perfectly circular (or as

per design), with strict adherence to tolerances for tilt and shift.

 Intermediate Walls: For wells with multiple compartments, the intermediate wall

cutting edges shall be kept at a higher level (approx. 300 mm) than the outer wall

edge, as per design.

4. Well Curb Construction

 Concrete: The well curb shall be cast in-situ with reinforced cement concrete

(typically M25 or higher) after the cutting edge is securely placed.

 Formwork: Steel formwork shall be used for both inner and outer faces of the curb,

ensuring the outer face is vertical.

 Anchorage: The vertical reinforcement of the well curb must be properly welded/tied

to the cutting edge anchors.

 Removal of Formwork: Outer formwork can be removed after 24 hours, and inner

formwork after 72 hours, depending on site conditions and concrete strength.

5. Cleaning and Painting

 All structural steel shall be free from rust, scale, and oil.

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 After fabrication and cleaning, a coat of red lead paint or approved anti-corrosive

paint shall be applied, particularly to areas that will be embedded in concrete.

6. Measurements

 The cutting edge is generally measured in Metric Tons (MT) or Running Meters (RM),

including the weight of angles, plates, stiffeners, and welding materials used.

Item no:-8 Providing and fixing concealed center point to wall ceiling & floor CPVC (SDR

13.5) PIPE having National Sanitation Foundation (NSF) seal for potable water

of following dia. nominal bore tube fittings and clamps including making good

the wall, ceiling and floor etc. complete. [B] 20 mm.

The low density polythene pipe of specified diameter with 6 Kg/Sq. Cm, working pressure shall

conform to I.S. 3076-1968. The specials and fittings required shall be of best quality.

The P.V.C. pipes of specified diameter shall be fixed as directed. Due to thermal expansion of

rigid ' P.V.D. pipes, due allowance shall be made particularly in over ground pipe lines for any

change in length of pipe line which may occur during installation or when pipe line which may

occur during installation or when pipe line is in service.

Above ground installation of rigid P.V.C. pipe should be under taken after preparations are

observed for their protection against direct sun rays and mechanical damage.

The rigid P.V.C. pipe lines should not be kept exposed above ground when it passes through

public places, railway lines, road side and foot paths.

P.V.C. pipes shall be supported at the following intervals : -20 mm. dia 500 mm. -25 mm. dia

750.mm. -32 mm. dia.900 mm.

Closer support spacing shall be provided if recommended by the manufacture.

The guide lines indicated by the manufacturer regarding handling, transportation, storing,

laying and jointing of pipes shall be kept in view during execution.

P.V.C. pipes shall be fixed on wall with wooden plugs and suitable plastic clamps.

Jointing the pipes :

The pipes and sockets shall be accurately cut. The ends of the pipes and fittings should be

absolutely free from dirt and dust. The outside surface of the pipes and the inside of the fittings

shall then be roughened with emery paper, and then solvent cement joint. Since solvent

cement is aggressive to P V.C. care must be taken to avoid applying excessive cement to the

inside of pipe sockets as any surplus cement cannot be wiped of after jointing. Empty solvent

cement tins, brushes, rags, or paper impregnated with cement should not be buried in the

They should be gathered not left scattered about, as-they can prove to be a hazard to animals,

which may chew them.

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If any manufacturer recommends its own methods of jointing the same shall be adopted after

necessary approval from the Engineer-in-charge.

Laying pipes in Trenches :

The pipes shall be laid over uniform relatively soft fine trained soil found to be free of presence

of hard object such as large flints, rocky projections, large tree roots etc. The width of the

trenches shall be minimum width required for working.

The pipes laid underground shall not be less than one meter from the ground level. The pipe

positioned in the trenches so as to avoid any induced stressed due to deflection. Any deviation

required shall be obtained by using proper type of rubber ring joints.

Mode of measurements & payment

The unit rate shall be for a unit of One running meter.

Item no:-9 Providing and fixing Gun metal check or non-return fullway wheel valve.

A Gun Metal (GM) Non-Return (Check) Fullway Wheel Valve specification requires it to be

heavy pattern, made of IS:318 Gr. LTB2 GM, with screwed ends (IS 554/BS 21), integral

seats, metal-to-metal seating, and designed for unidirectional flow, often with a mushroom-

shaped disc guided in the body and bonnet, conforming to standards like IS:778 Class-1 for

pressure/temperature ratings and API standards (API 594, 598) for performance and testing.

Installation involves ensuring correct orientation (horizontal lines) and proper connection,

with the valve functioning automatically to prevent backflow in piping systems.

Key Specifications

 Material: Gun Metal (GM), typically IS:318 Grade LTB2 (Copper-Tin Alloy).

 Type: Non-Return (Check) Valve, Fullway (allows full flow when open).

 Ends: Screwed Female Ends, conforming to IS 554 / BS 21 / ISO

o Heavy Pattern.

o Screwed-in Bonnet, Integral Seat.

o Disc: Mushroom-shaped, guided in Body & Bonnet, metal-to-metal seating.

o Inside screw mechanism for operation (if it's also a gate/wheel valve).

 Standards: Conforming to IS:778 Class-1 (for pressure/temp ratings).

 Operation: Permits flow in one direction and closes automatically on flow reversal.

Installation & Fixing Details

 Orientation: Must be installed in a horizontal line to function correctly.

 Sealing: Ensure tight connections at screwed ends; proper thread sealant or taping is

 Operation Check: Verify the disc moves freely and seats properly to prevent leakage.

 Testing: Must pass hydrostatic and pneumatic tests as per relevant standards (e.g.,

API 598) for seat leakage and body pressure.

General Requirements

Volume-III, PRICE BID VKV RWSS

 Color: Body often painted blue.

 Documentation: Design drawings, test certificates, and material test reports (MTRs)

Mode of measurements & payment

 The unit rate shall be for a unit of Numbers.

Item no:-10 Purchasing & supplying at site of works, with Railway freight, loadding,

unloading, carting, etc. complete such as joints, channels, angles, iron rails, etc.

This specification covers the purchasing, procurement, transportation (including Railway

freight), handling (loading/unloading), and delivery to the designated work site of structural

steel materials such as iron rails, joints, channels, and angles, in accordance with Indian

Railway Standard (IRS) and Bureau of Indian Standards (BIS) specifications.

1. Scope of Work

 Procurement: Purchasing of high-quality, tested structural steel and rails.

 Railway Freight: Booking, transport, and management of materials via Indian

 Handling: Loading at the source, unloading at the railway siding, and final unloading

 Transportation (Karting): Transportation from the source to the railway station, and

from the destination siding to the final construction site.

 Storage: Stacking at the site in accordance with safety standards.

2. Technical Specifications of Materials

 Iron Rails: Shall conform to IRS:T-12-2009 (updated) for Flat Bottom Rails, including

60 kg/m or 52 kg/m profiles. Rails must be of Class 'A' or 'B' based on end

straightness, with specific UTS (Ultimate Tensile Strength) requirements (880 MPa or

 Structural Steel (Channels, Angles, Joints): Shall conform to IS: 2062 - 2011 (Steel for

general structural purposes) or latest revisions.

 Quality Requirement: All materials must be free from blisters, rust, cracks, seams,

laps, and other defects.

 Test Certificates: Manufacturer test certificates (TC) must be submitted, confirming

compliance with relevant BIS/IRS standards.

3. Transportation and Handling

 Loading: Materials must be loaded onto Railway Wagons (BFR) with a minimum of

three bolsters to provide a uniform base, equalizing overhangs.

 Securing: Rails must be secured with proper binding (e.g., M.S. strips) with non-

metallic packing (e.g., cardboard) to avoid corrosion.

 Unloading: To be done carefully to avoid damage to rail ends. Rails should be

unloaded on one side of the track, leaving the other side clear for future work.

 Karting: Safe transport from siding to site to ensure no bending or damage to

4. Site Storage and Safety

Volume-III, PRICE BID VKV RWSS

 Stacking: Materials must be stacked on a firm, level, and well-drained area.

 Stack Height: Rails should be stacked in layers with wooden separators. Stack height

should be regulated to prevent instability.

 Safety: In electrified areas, all loading/unloading must be done under supervision and

after obtaining "permit-to-work".

5. Measurement and Payment

 Measurement: Weight-based, usually in Metric Tonnes (MT).

 Item Rate: The rate includes all materials, taxes (GST), freight, loading/unloading,

handling, and transportation to the final site.

Item no:-11 Chain Pulley Block

Providing chain pulley block with triple gear arrangement, lifting hook, laod chain &

hand chain & locking device etc.

2 T Manually Operated

A 2-Ton Manual Chain Pulley Block spec requires triple spur gears, forged hooks with safety

latches, hardened alloy steel load chain (e.g., 10mm), a reliable internal brake system (pawl

& ratchet), and robust frame (MS plates), conforming to standards like IS 3832, with

provisions for anti-friction bearings and robust paint for heavy-duty use, ensuring safe lifting

via hand chain operation with load limiters and clear operational instructions.

Key Technical Specifications:

 Capacity: 2 Ton (2000 kg).

 Operation: Manual, Hand Chain Operated.

 Gearing: Triple Spur Gear arrangement with heat-treated alloy steel pinions and

case-hardened spur wheels for durability.

 Load Chain: High-quality, hardened alloy steel, e.g., 9-10mm diameter (confirm with

specific standards like IS 3832).

 Hooks: Forged alloy steel hooks with spring-loaded safety latches (locking device) to

prevent load slippage.

 Braking System: Reliable, self-acting internal brake (like pawl & ratchet type)

capable of holding the load at any position.

 Bearings: Load chain sprocket mounted on anti-friction ball bearings for smooth

 Body/Frame: Rugged design using mild steel rolled plates, powder-coated or zinc-

plated for corrosion resistance.

 Standard Compliance: Shall conform to relevant Indian Standards (IS 3832:2005 or

latest) and/or international norms.

 Lifting Height: Standard height (e.g., 3m), with potential for extra lift as required.

 Hand Chain: Galvanized steel, sized appropriately for the load.

 Safety Features: Overload protection (load limiter) is highly recommended for critical

General Requirements:

 Design: Rugged, suitable for heavy engineering and harsh environments (dusty,

Volume-III, PRICE BID VKV RWSS

 Documentation: Supplier must provide detailed technical brochures,

operational/maintenance manuals, and test certificates.

 Testing: Proof load testing (e.g., 1.5x SWL) and smooth operation checks are

 Accessories: May include a trolley (geared or push type) if required for horizontal

By adhering to these specifications, you ensure a robust, safe, and reliable 2-ton manual

chain pulley block.

5. Measurement and Payment

 Measurement: Weight-based, usually in Numbers.

Item no:-12 Providing and casting in situ mass cement concrete in grade M-10 (approx.

corresp. to prop. 1:3:6) using granite quartzite trap metal of size 12 mm to 25 mm incl.

consolidation curing etc. complete. without formwork

The work shall be carried out super the description of the item and the specification of the item

shall be as per P.W.D. Hand book Vol-I & II.

The course aggregate shall be granite quartzite trap metal of size 12 mm to 25 mm size of

burnt bricks it shall be free from any foreign materials brick powder etc.

The sand shall be course angular hard and free from impurities such as dirt, dust or any other

foreign materials.

The cement shall be of approved quality. The in grading shall be mixed on water tight platform

in dry condition and required quantity of potable water shall be added and mixed thoroughly to

get required workability.

The first figure show quantity of cement, second figure shows quantity of sand and third figures

shows quantity of a course aggregate burnt bricks bats by Volume.

The rate including cleaning, imposition proper ramming consolidation and curing etc. complete.

The work shall be kept wet during excavation and the whole work shall be carried for seven

days after completion of work.

The rate includes the coat of necessary centering.

Minimum consumption of cement shall be 2.825 bags per cmt.

The payment shall be made on cu.mt. basis.

Item no:-13 Providing and casting in situ C.C. In grade M-15 (approx. Corresp. To prop

1:2:4) (proportions as per mix design or as per Table 9 of IS456 2000 in masses by weigh

batching )using granite, quartzite trap metal of size 6 mm to 20 mm for RCC work,

including scaffolding centering, formwork, needle vibrated consolidation, curing comp.

up to 6 meter depth or hight (excluding cost of reinforcement and neat finishing) with

centering and shuttering/deshuttering etc. comp. for structure for other than water

retaining. Footing(without formwork)

This technical specification outlines the requirements for providing and casting in situ M-15

grade concrete for footings.

1. Material Proportions & Grade

 Grade: M-15, having a characteristic compressive strength of 15 N/mm² at 28 days.

Volume-III, PRICE BID VKV RWSS

 Nominal Mix: Approximately 1:2:4 (1 part Cement : 2 parts Fine Aggregate : 4 parts

Coarse Aggregate).

 Batching Method: All ingredients (cement and aggregates) must be measured by mass

(weight batching) as per Table 9 of IS 456:2000.

 Cement Content: Typical cement consumption is approximately 317 kg per cubic

meter for this grade.

2. Aggregates & Water

 Coarse Aggregate: Must be hard, durable crushed stone such as Granite, Quartzite, or

 Size: Graded mixture ranging from 6 mm to 20 mm nominal size.

 Water-Cement Ratio: Typically maintained between 0.45 and 0.55 to ensure strength

and workability.

3. Execution & Workmanship

 Mixing & Placing: Concrete must be mixed thoroughly (preferably in a mechanical

mixer) and cast in situ for footings up to a depth/height of 6 meters.

 Consolidation: Mechanical needle vibrators must be used for effective compaction to

eliminate air voids and ensure maximum density.

 Formwork & Scaffolding: Includes all necessary scaffolding and centering/shuttering.

Note that for the footing base, the spec excludes formwork (casting directly against

soil or Lean Concrete) as per your requirement.

 Curing: The concrete must be kept constantly moist for a minimum of 7 to

days (standard) to achieve designated strength.

 Reinforcement: Cost of steel and its placement is excluded from this specific item.

 Finishing: Neat cement finishing or special surface treatments are not included

5. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

Item no:-14 Excavation for foundation upto 1.5 M. depth including sorting out and

stacking of useful materials & disposing of the excavated stuff upto 50M. lead. (a) Loose

A) 0.0 to1.5 mt. Depth.

B) 1.0. General:

C) 1.1. Any soil which generally yields to the application of pickaxes and shovels,

phawaras, rakes or any such ordinary excavating implement or organic soil, gravel,

silt, sand turfloam, clay, peat etc., fall under this category.

D) 2.0 Clearing the site :

E) 2.1 The site on which the structure is to be built shall be cleared and all

obstructions, loose stone, materials and rubbish of all kind, bush, wood and

trees shall be removed as directed: The materials so obtained shall be

property of the Government and be conveyed and stacked as directed within 50 M.

lead. The roots of the trees coming in the sides shall be cut and coated with a hot

F) 2.2 The rate of site clearance is deemed to be included in the rate of earth work for

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which no extra will be paid.

G) 3.0 Setting out: After clearing the site, the center lines will be given by the

Engineer-in-charge. The contractor shall assume full responsibility for alignment,

elevation and dimension of each and all parts of the tractor shall assume fu;

responsibility for alignment elevation and dimension of each and all parts of

the work. Contractor shall supply labourers, materials, etc. required for setting

out the reference marks and bench marks and shall maintain them a long as required

H) 4.0 Excavation : The excavation in foundation shall be carried out in true line and

level and shall have the width and depth as shown in the drawings or as directed.

The contractor shall do the necessary shoring and shutting or providing

necessary slopes to a safe angle, at his own cost. The payment for sue precautionary

measures shall be paid separately if not specified. The bottom of the excavated area

shall be evelled both longitudinally and transfersely as directed by removing and

watering as required. No earth filling will be allowed for bringing it t o level, if by

mistake or any; other reason excavation is made deeper or wider that shwon on

the plan or directed. The extra depth or width shall be made up with

concrete of same proportion as specified for the foundation concrete at the

cost of the contractor. The excavation upto 1.5 m. depth shall be measured

under this item.

I) 5.0. Disposal of the excavated studd :

J) 5.1. The excavated stuff of the selected type shall be used in filling the trenches and

plinth or levelling the ground in layers including ramming and watering etc.

K) 5.2. The balance of the excavated quantity shall be removed by the contractor from

the site of work to a place as directed with lead upto 50 M. and all lift.

L) 6.0. Mode of Measurement and Payment:

M) 6.1. The measurement of excavation in trenches for foundation shall be made

according to the sections of trenches shown on the drawing or as per sections given

by the Engineer-in-charge. No payment shall be made for surplus excavation made

in excess of above requirements or due to slopping and sloping back as found

necessary on account of conditions of soil and requirements of safety.

N) 6.2. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per

Item no:-15 Brick work using common Brunt clay building bricks having crushing

strengath not less that 35 kg./sq.c.m in foundation and plinth in cement mortar 1:6 (1

cement : 6 fine sand)

(B) Conventional up to PL

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Materials : Cement mortar of proporation 1 : 6 shall conform to M-11. Conventional bricks

shall conform to M-15.

2.0. Workmanship:

2.1. Proportion:

2.1.1. The proportion of the cement mortar shall be 1 : 6 (1 cement: 6 fine sand) by volume.

2.2. Wetting of bricks :

2.2.1. The bricks required for masonry shall be thoroughly wetted with clean water

for about two hours before use or as directed. The cessation of bubbles, when

the bricks are welted with water is an indication of through wetting of bricks.

2.3..I. Bricks shall be laid in English bond unless directed otherwise. Half or cut

bricks shall not be used except when necessary to complete to bond; closers

in such case shall be cut to required size and used near the ends of walls.

2.3.2. A layer of mortar shall be spread on full width for suitable length of the lower course.

Each brick shall first be properly bedded and se: home by gently tapping

with handle of trowel or wooden mallet. It side face shall be flushed

with mortar before the next brick is laid and pressed against it. On completion

of course, the vertical joints shall be fully filled from the top with mortar.

2.3.3. The walls shall be taken up truly in plumb. AH courses shall be laid truly horizontal

and all vertical joint shall be truly vertical. Vertical joints in alternate course

shall generally be directly one over the other. The Thickness of brick course shall

be kept uniform.

2.3.4. The brick shall be laid with frog upwards. A set of tools comprising of wooden

straight edges, mason’s sprit level, square half metre rub, and pins, string and

plumb shall be kept on the site of work for frequent checking during the progress

2.3.5. Both the faces of walls of thickness greater than 23 cms. shall be kept in proper

place. All the connected brick work shall be kept not more than one metre

over the rest of the work. Where this is not possible, the work shall be

raked back according to bond (and not left toothed) at an angle not steeper than

2.3.6. All fixtures, pipes, outlets of water, hold fasts of doors and windows etc. which are

required to be built in wall shall be embedded in cement mortar.

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2.4.1. Bricks shall be so laid that all joints arc quite flush with mortar. Thickness of joins

shall not exceed 12 mm. The face joints shall be raked out as directed by taking

tools daily during the progress of work, when the mortar is still green so as to

provide key for plaster or pointing to done.

2.4.2. The face of brick shall be cleaned the very day on which the brick work is laid and all

mortar dropping removed.

2.5.1. Green work shall be protected from rain suitably. Masonry work shall be kept moist on

all the faces for a period of seven days. The top of masonry work shall be kept

well welted at the close of the day.

2.6. Preparation of foundation bed :

2.6.1. If the foundation is to be laid directly on the excavated bed, the bed shall

be levelled, cleared of all loose materials, cleaned and wetted before

starting masonry. If masonry is to be laid on concrete

footing, the top of concrete shall be cleaned and moistened. The contractor shall

obtain the engineer’s approval for the foundation bed, before foundation

masonry is started. When puccas flooring is to be provided flush with the top to

plinth, the inside plinth offset shall be kept lower than the outside plinth top by

the thickness of the flooring.

3.0. Mode of Measurements and Payment:

3.1. The measurements of this item shall be taken for the brick masonry fully

completed in foundation upto plinth. The limiting dimensions not exceeding

those shown on the plans or as directed shall be final. Battered,

tappered and curved portions shall be measured net.

3.2. No deduction shall be made from the quantity of brick work, nor any extra payment

made for embedding in masonry or making holes in respect of following items :

(1) Ends of joints, beams, posts, girders, rafters, purlins, trusses, corbel steps etc. where

cross sectional area does not exceed 500 Sq.Cm.

(2) Openings not exceeding 1000 Sq. Cm.

(3) Wall plates and bed plates, bearing of slabs, chhajjas and the like whose

thickness does not exceed 10 Cms. and the bearing does not extend to the

full thickness of wall.

(4) Drainage holes, and recesses for cement concrete blocks to embed hold fasts for doors,

(5) Iron fixtures, pipes upto 300 mm. dia; hold fasts and doors and windows built into

masonry and pipes etc. for concealed wiring.

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(6) Forming chases of section not exceeding 350 Sq. Cm. in masonry.

3.3. Apertures for fire places shall not be deducted nor shall extra labour required to make

splaying of jambs, throating and making Arches over the aperture be paid for

3.4 Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

Item no:-16 Brick work using common Brunt clay building bricks having crushing

strengath not less that 35 kg./sq.c.m for super structure in cement mortar 1:6 (1 cement

Materials : Cement mortar of proporation 1 : 6 shall conform to M-11. Conventional bricks

shall conform to M-15.

2.0. Workmanship:

2.1. Proportion:

2.1.1. The proportion of the cement mortar shall be 1 : 6 (1 cement: 6 fine sand) by volume.

2.2. Wetting of bricks :

2.2.1. The bricks required for masonry shall be thoroughly wetted with clean water

for about two hours before use or as directed. The cessation of bubbles, when

the bricks are welted with water is an indication of through wetting of bricks.

2.3..I. Bricks shall be laid in English bond unless directed otherwise. Half or cut

bricks shall not be used except when necessary to complete to bond; closers

in such case shall be cut to required size and used near the ends of walls.

2.3.2. A layer of mortar shall be spread on full width for suitable length of the lower course.

Each brick shall first be properly bedded and se: home by gently tapping

with handle of trowel or wooden mallet. It side face shall be flushed

with mortar before the next brick is laid and pressed against it. On completion

of course, the vertical joints shall be fully filled from the top with mortar.

2.3.3. The walls shall be taken up truly in plumb. AH courses shall be laid truly horizontal

and all vertical joint shall be truly vertical. Vertical joints in alternate course

shall generally be directly one over the other. The thickness of brick course shall

be kept uniform.

2.3.4. The brick shall be laid with frog upwards. A set of tools comprising of wooden

straight edges, mason’s sprit level, square half metre rub, and pins, string and

plumb shall be kept on the site of work for frequent checking during the progress

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2.3.5. Both the faces of walls of thickness greater than 23 cms. shall be kept in proper

place. All the connected brick work shall be kept not more than one metre

over the rest of the work. Where this is not possible, the work shall be

raked back according to bond (and not left toothed) at an angle not steeper than

2.3.6. All fixtures, pipes, outlets of water, hold fasts of doors and windows etc. which are

required to be built in wall shall be embedded in cement mortar.

2.4.1. Bricks shall be so laid that all joints arc quite flush with mortar. Thickness of joins

shall not exceed 12 mm. The face joints shall be raked out as directed by taking

tools daily during the progress of work, when the mortar is still green so as to

provide key for plaster or pointing to done.

2.4.2. The face of brick shall be cleaned the very day on which the brick work is laid and all

mortar dropping removed.

2.5.1. Green work shall be protected from rain suitably. Masonry work shall be kept moist on

all the faces for a period of seven days. The top of masonry work shall be kept

well welted at the close of the day.

2.6. Preparation of foundation bed :

2.6.1. If the foundation is to be laid directly on the excavated bed, the bed shall

be levelled, cleared of all loose materials, cleaned and wetted before

starting masonry. If masonry is to be laid on concrete

footing, the top of concrete shall be cleaned and moistened. The contractor shall

obtain the engineer’s approval for the foundation bed, before foundation

masonry is started. When puccas flooring is to be provided flush with the top to

plinth, the inside plinth offset shall be kept lower than the outside plinth top by

the thickness of the flooring.

3.0. Mode of Measurements and Payment:

3.1. The measurements of this item shall be taken for the brick masonry fully

completed in foundation upto plinth. The limiting dimensions not exceeding

those shown on the plans or as directed shall be final. Battered,

tappered and curved portions shall be measured net.

3.2. No deduction shall be made from the quantity of brick work, nor any extra payment

made for embedding in masonry or making holes in respect of following items :

(1) Ends of joints, beams, posts, girders, rafters, purlins, trusses, corbel steps etc. where

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cross sectional area does not exceed 500 Sq.Cm.

(2) Openings not exceeding 1000 Sq. Cm.

(3) Wall plates and bed plates, bearing of slabs, chhajjas and the like whose

thickness does not exceed 10 Cms. and the bearing does not extend to the

full thickness of wall.

(4) Drainage holes, and recesses for cement concrete blocks to embed hold fasts for doors,

(5) Iron fixtures, pipes upto 300 mm. dia; hold fasts and doors and windows built into

masonry and pipes etc. for concealed wiring.

(6) Forming chases of section not exceeding 350 Sq. Cm. in masonry.

3.3. Apertures for fire places shall not be deducted nor shall extra labour required to make

splaying of jambs, throating and making Arches over the aperture be paid for

3.4 Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

Item no:-17 Providing TMT Bar FE 415 Reinforcement for RCC work including bending,

binding and placing in position complete up to floor two level.

1.0. Materials : 1.1. TMT bars shall conform to M-18. Mild steel binding wires shall conform

2.0. Workmanship :

2.1. The work shall consist of furnishing and placing reinforcement to the shape and

dimensions shown as on the drawings or as directed.

2.2. Steel shall be clean and free from rust and loose mill scale at the time of fixing in

position and subsequent concreting.

2.3. Reinforcing steel shall conform accurately to the dimensions given in the bar

bending schedules shown on relevant drawings. Bars shall be bent cold to

specified shape and dimensions or as directed using a proper bar bender,

operated by hand or power to attain proper radius of bends. Bars shall not be

bent or straightened in a manner that will injure the material. Bars bent during

transport & handling shall be straightened before being used on me work.

They shall not be heated to facilitate bending. Unless otherwise specified,

a ‘U’ type hook at he end of each bar shall invariably be provided to

main reinforcement. The radius of the bend shall not be less than twice the

diameter of the round bar and the length of straight part of the bar beyond the

end of the curve shall be at least four times the diameter of the round bar. In

case of bars which are not round and in case of deformed bars, the diameter

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shall be taken as the diameter of circle having an equivalent effective area. The

hooks shall be suitably encased to prevent any splitting of the concrete.

2.4. All the reinforcement bars shall be accurately placed in exact position shown on the

drawing sand shall be securely held in position during placing of concrete by

annealed binding wire not less than 1 mm. in size, and by using stay blocks or

metal chair spacers, metal hangers, supporting wires or other approved

devices at sufficiently-Close intervals. Bars shall not be allowed to sag

between supports nor displaced during concreting or any other operations of the

work. All devices used for positioning shall be of non-corrodible material.

Wooden and metal supports shall not extend to the surface of concrete, except

where shown on drawings. Placing bars on layers of freshly laid concrete as

the work progresses for adjusting bar spacing shall not allowed.-Pieces of

broken stone or brick and wooden blocks shall not be used. Layers of bars shall

be separated by spacer bars, precast mortar blocks or other approved devices.

Reinforcement after being placed in position shall be maintained in a clean

condition until completely embedded m concrete. Special care shall be exceeded

to prevent any displacement of reinforcement in concrete already placed. To

prevent reinforcement from corrosion, concrete cover shall be provided as

indicated on drawing. All the bars prodruding from concrete and to which other

bars are to be spliced and which are likely to be exposed for a period exceeding

10 days shall be protected by a thick coast of neat cement grout.

2.5. Bars crossing each other where required shall be secured by binding wiles (annealed) of

size not less than I mm. in such manner that they do not slip over each other at

the time of fixing and concreting.

2.6. As far as possible, bars of full length shall be used. In case this is not

possible, overlapping of bars shall be done as directed. When practicable,

overlapping bars shall not touch each other, but be kept apart by

mm. or 1.25 times the maximum size of the coarse aggregate whichever is

greater by concrete between them. Where not feasible, overlapping bars shall be

bound with annealed wires not less than 1 mm. thick twisted tight The overlaps

shall be staggered for different bears and located at points along the span where

neither shear nor bending movement is maximum.

2.7. Whenever indicated on the drawings or desired by the Engineer-in-charge, bars shall be

joined by couplings which shall have a cross-section sufficient to transpit the full

stresses of bars. The ends of the bars that are joined by coupling shall be upset

for sufficient length so that the effective cross section at the base of threads is

not less than normal corss-section of the bar. Threads shall be standard threads.

Steel for coupling shall conform to I.S.

2.8. When permitted or specified on the drawings, joints of reinforcement bars shall be

butt-welded so as to transmit their full stresses. Welded joints shall preferably

be located at points when steel will not be subject to more than 75 per

cent of the maximum permissible stresses and welds so staggered that at

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any one section not more than 20 percent of the rods are welded. Only

electric arc welding using a process which excludes air from the molten metal

and conforms to any or all other special provisions for the work shall be

accepted. Suitable means shall be provided for holding bars securely in

during welding. It shall be ensured that no voids are left in welding and when welding is

done in two or three stages, previous surface shall be cleaned properly. Ends

of the bars shall be cleaned of all loose scale, rust, grease, paint and

other foreign matter before welding. Only competent welders shall be employed

on the work. The M.S. electrodes used for welding shall conform to I.S.

Welded pieces of reinforcement shall be tested. Specimen shall be taken from

the actual site and their number and frequency of test shall be as directed.

3.0. Mode of Measurement and Payment:

3.1. For the purpose of calculating consumption, wastage shall not be permitted beyond

percent. Excess consumption over 5% will be charged at penal rate.

3.2. Reinforcement shall be measured in length including overlaps, separately for different

diameters as actually used in the work. Where welding or coupling is resorted to,

in place of lap joints, such joints shall be measured for payment as equivalent

length of overlap as per design requirement. From the length so measured, the

weight of reinforcement shall be calculated in tonnes on the same basis of as per

M-18 even though steel is supplied to the contractor by the department on actual

Length shall include hooks at the ends. Wastage and annealed steel wire for binding shall

not be measured and the cost of these items shall be deemed to be included in

the rate for reinforcement.

3.3. The rate for reinforcement includes cost of steel binding wires its carting from

Department a store to work site., cutting, bending, placing; binding and fixing in

position as shown on the drawings and as directed. It shall also include all

devices for keeping reinforcement in approved position, cost of joining as per

approved method and all wastage and spacer bars.

3.4. Mode Of Payment:- The rate-shall be for a unit of one Kg as per Price Bid.

Item no:-18 Providing and laying cement concrete work 1:2:4 (1- Cement : 2- Coarse

sand : 4- graded stone aggregates 20 mm nominal size) and curing complete excluding

cost of formwork and reinforcement for reinforced concrete work in (D) Columns,

Pillars posts and struts upto floor two level.

1.0. Materials : Water shall conform to M-l. Cement shall conform to M-3. Sand shall

conform to M-6. Grit shall conform to M-8. Graded stone aggregate 20 mm.

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nominal size shall conform to M-12.

2.1. The concrete mix is not required to be designed by preliminary tests. The proportion of

the concrete mix shall be 1 : 2 : 4 (1 cement: 2 coarse sand ; 4 graded stone

aggregate 10 mm. nominal size) by volume. Concrete work shall have exposed

concrete surface or as specified in the item.

2.2. The designation ordinary M-100, M-150, M-200, M-250 specified as per. I.S.

Corresponding approximately to 1 : 3 : 6, 1 : 2 : 4, 1 : 1 1/2 : 3 and 1:1:2 nominal

mix of ordinary concrete by volume respectively.

2.3. The ingredients required for ordinary concrete containing one beg of cement of

50 Kg. by weight (0.0342 Cu. M.) for different proportions of mix shall be as

Total quantity of dry

aggregate by volume per

Grade of Kgs. of cement to be Proportion of fine

concr taken as the sum of aggregate to coarse

ete individual volume of fine aggregate

and coarse aggregates,

M-100 (1 : 3: 6) 300 Liters Generally 1 : 2 for fine 34 Liters

aggregate to coarse

M-150 (1 : 2 : 4) 2.20 Liters aggregate by volume 32 Liters

but subject to and upper

160 Liters limit of 1 : 1 1/2 and 30 Liters

lower limit 1 :

M-250 ( 1:1:2) 100 Liters 27 Liters

2.4. The water cement ratios shall not more than those specified in the above table.

The cement content of the mix specified in the Table shall be increased if the

quantity of water in a mix has to be increased to overcome the difficulties of

placement and compaction so that the water-cement-ratio specified in the Table

is not exceeded.

2.5. Workability of the concrete shall be controlled by maintaining a water-cement-ratio

that is bound to give a concrete mix which is just sufficiently wet to be placed

and compacted without difficulty with the means available.

2.6. The maximum size of coarse aggregate shall be as large as possible within the limits

specified but in no case greater than one fourth of the minimum thickness of

the member, provided that the concrete can be placed without difficulty

so as to surround all reinforcement thoroughly and to fill the comers of the

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2.7. For reinforced concrete work, coarse aggregates having a nominal size of 20 mm. are

generally considered satisfactory.

2.8. For heavily reinforced concrete members as in the case of ribs of main beams,

the nominal maximum size of coarse aggregate should usually be restricted to

5 mm. less than the minimum, clear distance between the main bars, or 5 mm.

less than the minimum cover to the reinforcement whichever is smaller.

2.9. Where the reinforcement is widely spaced as in solid slabs, limitations of size of the

aggregate may not be important and the nominal maximum size may sometimes

be as great as OF greater than the minimum cover.

2.10. Admixture may be used in concrete only with approval of Engineer-in-charge

based upon the evidence that with the passage of time, neither the

compressive strength of concrete is reduced nor are other requisite qualities of

concrete and steel impaired by the use of such admixtures.

3.0. Workmanship:

3.1. Proportioning : Proportioning shall be done by volume, except cement which shall be

measured in terms of bags of 50 Kg. weight. The volume of one such bag being

taken as 0.0342 Cu. metre. Boxes of suitable sizes shall be used for measuring

sand aggregate. The size of the boxes (internal) shall be 35 cms. x 25 cms. and

40 Cms. deep. While measuring the aggregate and sand, the box shall be filled

without shaking ramming or hammering. The proportioning of sand shall be on

the basis of its dry volume and in case of damp sand, allowances for bulkage shall

3.2.1. For all work, concrete shall “be mixed in a mechanical mixer which alongwith other

aecessories shall be kept in first class working condition and so maintained

throughout the construction. Measured quantity of aggregate, sand, cement

required for each batch shall be poured into the drum of the mechanical mixer

while it is continuously running. After about half a minute of dry mixing,

measured quantity of water required for each batch of concrete mix shall be

added gradually and mixing continued for another one and a half minute. Mixing

shall be. continued till materials are uniformly distributed and uniform colour of

the entire mass is obtained and each individual particle of the coarse aggregate

shows complete coating of mortar containing its proportionate amount of

cement. In no case shall the mixing be done for less than 2 minutes after all

ingredients have been put into the mixer.

3.2.2. When hand mixing is permitted by the Engineer-in-charge for small jobs or for certain

other reasons, it shall be done on the smooth watertight platform large

enough to allow efficient turning over the ingredients of concrete before

and after adding water. Mixing platform shall be so arranged that no

foreign material gets mixed with concrete nor does the mixing water flow

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out. Cement in required number of bags shall be placed in a uniform layer on top

of the measured quantity of fine and coarse aggregate, which shall also be

spread in a layer of uniform thickness on the mixing platform. Dry coarse and

fine aggregate arid cement shall then be mixed thoroughly by turning over to get

a mixture to uniform colour. Specified quantity of water shall then be added

gradually through a rose-can and the mass turned over till a mix of

required consistency is obtained. In hand mixing, quantity of cement shall be

increased by 10 percent above that specified.

3.2.3. Mixers which have been out of use for more than 30 minutes shall be throughly

cleaned before putting in a new batch. Unless otherwise agreed to by the

Engineer-in-charge the first batch of concrete from the mixture shall

contain only two thirds of normal quantity of coarse aggregate. Mixing

plant shall be thoroughly cleaned before changing from one type of

cement to another.

3.3. Consistency: 3.3.1. The degree of consistency which shall depend upon the nature of

the work and methods of vibration of concrete, shall be determined by regular

slump tests in accordance with I.S. 1199-1959. The slump of 10 mm. to 25 mm.

shall be-adopted when vibrators are used and 80 mm. when vibrators are not

4.4. Inspection:

3.4.1. Contractor shall give the Engineer-in-charge due notice before placing any

concrete in the forms to permit him to inspect and accept the false work

and forms as to their strength, alignment, and general fitness but such inspection

shall not relieve the contractor of his responsibility for the safety of men,

machinery, materials and for results obtained. Immediately before concreting,

all forms shall be thoroughly cleaned.

3.4.2. Centering design and its erection shall be got approved from the Engineer-in-charge.

One carpenter with helper shall invariably be kept present throughout the

period of concreting. Movement of labour and other persons shall be

totally prohibited for reinforcement laid in position. For access to different

parts, suitable mobile platforms shall be provided so that steel reinforcement in

position is not disturbed. For ensuring proper cover, mortar blocks of suitable

size shim be cast and tied to the reinforcement. Timber, kapachi or metal pieces

shall not be used for this purpose.

3.5. Transporting and laying:

3.5.1. The method of transporting and placing concrete shall be as approved. Concrete shall

be so transported and placed that no contemination segregation or loss of its

constituent material takes place. All form work shall be cleaned and made free

from standing water, dust, show or ice immediately before placing of concrete.

No concrete shall he, placed in any part of the structure untill the approval of

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the Engineer-in-charge has been obtained.

3.5.2. Concreting shall proceed continuously over the area between construction

joints. Fresh concrete shall not be placed against concrete which has been in

position for more than 30 minutes unless a proper construction joint is formed.

Concrete shall be compacted in its final position within 30 minutes of its

discharge from the mixer. Except where otherwise agreed to by the Engineer-in-

charge concrete shall be deposited in horizontal layers to a compacted depth of

not more than 0.45 metre when internal vibrators are used and not exceeding

0.30 metre in all other cases.

3.5.3. Unless otherwise agreed to by the Engineer-in-charge, concrete shall not be dropped

into place from a height exceeding 2 metres. When truoking or chutes arc used

they shall be kept close and used in such a way as to avoid segregation. When

concreting has to be resumed on a surface which has hardened, it shall

be roughened, swept clean, thoroughly wetted and covered with a 13 mm.

thick layer of mortar composed of cement and sand in the same ratio as in the

concrete mix itself. This 13 mm. layer of mortar shall be freshly mixed and

placed immediately before placing of new concrete. Where concrete has not

fully hardened, all laitance shall be removed by scrubbing the wet surface with

wire or bristle brushes, care being taken to avoid dislodgernent of any

panicles of coarse aggregate. The surface shall then be thoroughly wetted,

all free water removed and then coated with neat cement grout. The first layer

of concrete to be placed on this surface shall not exceed 150 mm. in thickness

and shall be well rammed against old work, particular attention being given to

corners and close spots.

3.5.4. All concrete shall be compacted to produce a dense homogeneous mass with

the assistance of vibrators unless, otherwise permitted by the Engineer-in-

charge for exceptional cases, such as concreting under water, where vibrators

cannot be used. Sufficient vibrators in serviceable condition shall be kept at site

so that spare equipment is always available in the event of breakdowns.

Concrete shall be judged to be compacted when the mortar fills the spaces

between the coarse aggregate and begins to cream

up to form an even surface. Compaction shall be completed before the initial setting starts

i.e. within 30 minutes of addition of wafer to dry mixture. During compaction, it

shall be observed that needle vibrators are not applied on reinforcement which is

likely to destroy the bond between concrete and reinforcement.

3.6. Curing: Immediately after compaction, concrete shall be protected from weather,

including rain, running water, shocks, vibration, traffic, rapid temperature

changes, frost and drying out process. It shall be covered with wet

sacking, hassain or other similar absorbant material approved, soon after the

initial set and shall be kept continuously wet for a period of not less than 14 days

from the date of placement. Masonary work over foundation concrete may be

started after 48 hours of its laying but curing of concrete shall be continued for a

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minimum period of 14 days.

3.7. Sampling and Testing of concrete :

3.7.1. Samples from fresh concrete shall be taken as per I.S. 1199-1959 and cubes shall be

made, cured and tested at 7 days or 28 days as per requirements in accordance

with I.S. 516-1959. A random sampling procedure shall be adopted to ensure that

each concrete batch shall have a resonable chance of being tested i.e. the

sampling should be spread over the entire period of concreting and cover all

mixing units. The minimum frequency of sampling of concrete of each

grade shall be in accordance with following :

Quantity of concrete Quantity of concrete in

No. of samples No. of samples

in the work the works

51 and above 4 + one additional for each additional 50 M. or part thereof.

NOTE : At least one sample shall be taken from each shift. Ten test specimens

shall be made from each sample, five for testing at 7 days and the remaining

five at 28 days. The samples of concrete shall be taken on each day of the

concreting as per above frequency. The number of specimens may be

suitably increased as deemed necessary by the Engineer-in-charge when

procedure of tests given above reveals a poor quality of concrete and in other

3.7.2. Tire average strength of the group of cubes cast for each day shall not be less than

the specified cube strength of 150 Kg/Cm at 28 days. 20% of the cubes cast for

each day may have value less than the specified strength provided the lowest

value is not less than 85% of the specified strength. If the concrete made

in accordance with the proportions given for a particular grade docs not

yield the specified strength, such concrete shall be classified as belonging to the

appropriate lower, grade concrete made in accordance with the proportions

given for a particular grade shall not, however, be placed in a higher grade on

the ground that the test strength are higher than the minimum specified.

3.8. Stripping:

3.8.1. The Engineer-in charge shall be informed in advance by the contractor of his intention

lo strike the form work. While fixing the time for removal of form work, due

consideration shall be given to local conditions, character of the structure, the

weather and other condition that influence the setting of concrete and pf the

materials used in the mix. In normal circumstances (generally where

temperatures are above 20 ° C) and where ordinary concrete is used,

forms may be struck after expiry of periods specified item of form work.

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3.8.2. All form work shall be removed without causing any shock or vibration as would

damage the concrete. Before the soffit and struts are removed, the concrete

surface shall be exposed, where necessary in order to ascertain that the

concrete has sufficiently hardened. Centring shall be gradually and

uniformly lowered in such manner as to permit the concrete to take

stresses due to its own weight uniformly and gradually. Where internal metal ties

are permitted, they or their removable parts shall be extracted without

causing any damage to the, concrete and remaining holes filled with

mortar. No permanently embeded metal part shall have less than 25 mm. cover

to the finished concrete surface. Where it is intended to re-use the form work,

it shall be cleaned and made good to the satisfaction of the Engineer-in-

charge. After removal of form work and shuttering, the Executive Engineer

shall inspect the work and satisfy by random checks that concrete

produced is of good quality.

3.8.3. Immediately after the removal of forms, all exposed bolts etc., passing through the

cement concrete member and used for shuttering or any other purpose shall be

cut inside the cement concrete member to a depth of at least 25 mm. below

the surface of the concrete and the resulting holes be filled by cement mortar.

All fine caused by form joints, all cavities produced by the removal of form ties

and all other holes and depressions honeycomb spots, broken edges or corners

and other defects shall be thoroughly cleaned, saturated with water and

carefully pointed and rendered true with mortar of cement and fine

aggregate mixed in the proportions used in the grade of concrete that is-being

finished and of as dry consistency as is possible to use. Considerable pressure

shall be applied in filling and pointing to ensure thorough Riling in all voids.

Surfaces which are pointed shall be kept moist for a period of 24 hours. If rock

pockets/honeycombs in the opinion of the Engineer in- charge are of such an

extent or character to effect the strength of the structure materially or to

endanger the, life of the steel reinforcement, he may declare the

concrete defective and require the removal and replacement of the portions of

the structure affected.

4.0. Mode of Measurement and Payment:

4.1. The consolidated cubical contents of concrete work as specified in item shall be

measured. The concrete laid in excess of section shown on drawings or as

directed shall not be measured. No deduction shall be made for (a) Ends of dis-

similar materials such as joits, beams, posts, girders, rafters, purline trusses,

corbels and steps etc upt 500 Sq. Cm. in section. (b) Opening upto 0.1 Sq. M.

4.2. The rate includes cost of all materials, labour, tools and plant required for

mixing, placing, position, vibrating and compacting, finishing, as directed,

curing and all other incidental expenses for producing concrete lied

strength The rate excludes the cost of form work.

4.3. Mode Of Payment:- The rate-shall be for a unit of one Cubic Metre as per Price Bid.

Volume-III, PRICE BID VKV RWSS

Item no:-19 Providing 15mm thick cement plaster in single coat on Rough (Similar)side of

single or half brick walls for interior plastering upto floor two level and finished even

and smooth in (i) Cement mortar 1:3 (1-cement:3-sand)

1.0. Materials: 1.1.

Water M-l. The cement mortar of proportion 1 : 4 shall conform to M-13.

2.0. Workmanship:

2.1. Scaffolding : Wooden ballies, bamboos, planks, treaties and other

scaffolding shall be sound. These shall be properly examined before

erection and use. Stage scaffolding shall be provided for ceiling plaster

which shall be independent of the walls.

2.2. Preparation of back-ground:

2.2.1. The surface shall be cleaned of all dust, loose mortar droppings, traces of

algae, efflorescence and other foreign matter by water or by brushing.

Smooth surface shall be roughened by wire brushing if it is not hard and

by racking if it is hard. In case of concrete surface, if a chemical retarder

has been applied to the form work, the surface shall be roughened by

wire brushing and all the resulting dust and loose particles cleaned off

and care shall be taken that none of the retarders is left on the surface.

Trimming of projections on brick/concrete surface where necessary shall

be carried out to get an even surface.

2.2.2. Raking of joints in case of masonry where necessary shall -be allowed to dry

out for sufficient period before carrying out the plaster work.

2.2.3. The work shall not be soaked but only damped evenly before applying the

plaster. If the surface becomes dry such area shall be moistened again.

2.2.4. For external plaster, the plastering operation shall be started from top floor

and carried downwards. For internal plaster, the plastering operations

may be started wherever the building frame and cladding work arc

ready and the temporary supporting ceiling resting on the wall of the

floor have been removed. Ceiling plaster shall be completed before

starting plaster to walls.

2.3. Applications of plaster :

2.3.1. The plaster about 15 x 15 cms. shall be first applied horizontally and vertically

al not more than 2 meters intervals over the entire surface to serve as

gauge. The surfaces of these gauges shall be truly in plane of the

finished plastered surface. The mortar shall then be applied in uniform

surface slightly more than the specified thickness, then brought to a true

Volume-III, PRICE BID VKV RWSS

working a wooden straight edge reaching across the gauges with small upward and

sideways movement at a time. Finally, the surface shall be finished off

true with a trowel or wooden float according as a smooth or a

sandy granular texture is required. Excessive trowelling or overworking

the float shall be avoided. All comers, arrises, angles and junctions be

truly vertical or horizontal as the case may be and shall be carefully

finished. Rounding or chamfering corners, arrises junctions etc. shall be

carried out with proper templates to the size required.

2.3.2. Cement plaster shall be used within half an hour after addition of water. Any

mortar or plaster which is partially set shall be rejected and removed

forthwith from the site.

2.3.3. In suspending the work at the end of the day, the plaster shall be left out

clean to the line both horizontally and vertically. When recommending

the plaster, the edges of the old work shall be scraped clean and wetted

with cement putty before plaster is applied to the adjacent areas to

enable the two to properly join together. Plastering work shall be closed

at the end of the day on the body of the wall arid nearer than 15 cm. to

any corners or arrises. Horizontal joints in plaster work shall not also

occur on parapet tops and copings as these invaiiably lead to leakage. No

portion of the surface shall be left out initially to be packed up later on.

2.3.4. Each coat shall be kept damp continuously rill the next coat is applied or for a

minimum period of 7 days. Moistening shall commence as soon as plaster

is hardened sufficiently. Soaking of walls shall be avoided and only as

much water as can be readily absorbed shall be used, excessive

evaporation on the sunny or windward side of building in hot air or dry

weather shall be prevented by handing mattings or gunny bags on the

outside of the plaster and keeping them wet.

3.0. Mode of Measurements & Payment:

3.1. The rate shall include the cost of all materials, labour and scaffolding etc.

involved in the operations described under workmanship.

3.2. All plastering shall be measured in square meters unless, otherwise specified.

Length, breadth or height shall be measured correct to a centimeter.

3.3. Thickness of the plaster shall be exclusive of (he thickness of the key i.e.

grooves or open joints in brick work, stone work etc. or space between

laths. Thickness of plaster shall be average thickness with minimum

10mm. at any point on this surface.

3.4. This item includes plastering upto floor two level.

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3.5. The measurement of wall plastering shall be taken between the walls or

partition (dimensions before plastering being taken) for length and from

the top of floor or skirting to ceiling for height. Depth of cover of cornices

if any shall be deducted.

3.6. Soffits of stairs shall be measured as plastering on ceilings. Flowing soffits shall

be measured separately.

3.7. For jambs, soffits, sills etc. for openings not exceeding 0.5 sq. ml. each in area

for ends of joits, beams, posts, girders, steps, etc. not exceeding 0.5 sq.

mt. each in area and for openings exceeding 0.5 sq. mt. and not

exceeding 3.00 sq. mt. in each area deductions and additions shall be

made in the following manner:

(a) No deductions shall be made for ends of joints, beams, posts etc. and openings

not exceeding 0.5 sq. mt. each and no addition shall be made for reveals,

jambs, soffits, sills etc. of these opening for finish to plaster around ends

of joints, beams posts etc.

(b) Deduction for openings exceeding 0.5 sq. mt. but not exceeding 3 sq. mt. each

shall be made as follows and no addition shall be made for reveals,

jambs, soffits, sills etc. of these openings.

(i) When both faces of all wall are plastered with same plaster, deduction shall be

made for one face only.

(ii) When two faces of wall are plastered with different types of plasters or if one,

faces is plastered and the other pointed, deductions shall be made from

the plaster or pointing on the side of frame for door, window etc. on

which width of reveals is less than that on the other side but no

deductions shall be made on the other side. Where width of reveals on

both faces of all are equal, deductions of 50% of area of opening on each

face shall be made from area of plaster and/or pointing as the case

3.8. For openings having door frames equal to projecting beyond the thickness of

wall, full deduction for opening shall be made from each plastered face of

3.9. In case of openings of area above 3 sq. mt. each, deduction shall be made for

opening but jambs, soffits and sills shall be measured.

3.10. Mode Of Payment:- The rate-shall be for a unit of one Sq.Meter as per Price

Item no:-20 Steel work welded in butt up section, framed work including cutting,

hoisting, fixing in position and applying a priminga coat of red lead paint. (A) In beams

Volume-III, PRICE BID VKV RWSS

and joists channels angles, tees, flats, with connecting cleats as in main and cross

beems, hip and jack ragfters, purlins connected to common rafters and the like.

The work shall be carried out as per the description of the item and as per the specification laid

down in PWD Hand book Vol-I & II

The fixtures & fastening be of iron of quality & approved by the engineer in charge.

The frame shall be of angle iron & it shall be approved before providing at site in charge of

Priming coat of red lead paint shall be appalled.

Door shall be paint in three coats of approved colour incl. 1 Primer as per in charge of work.

The rate incl. providing &fixing hinges, handle, welding, locking arrangement, oil paint & got

approved in charge of work.

The payment shall be made on kg Basis.

Item no:-21 Providing Supplying and Installing Rotationally moulded HDPE storage tank of

approved make including all taxes transportation octroi etc. Complete.

For 5000 Liter cap.

For 10000 Liter cap

Technical Specification

 Manufacturing Standard: Tanks must be manufactured through a rotational moulding

process using 100% virgin, food-grade HDPE/LLDPE material conforming to IS

 Construction:

o Type: Cylindrical vertical tanks with a closed top and a secure, threaded

o Layers: Double or triple layer construction is standard. A black outer layer is

required for UV stabilization, and a food-grade white/blue inner layer ensures

o Physical Properties: Seamless, one-piece construction with no joints to

prevent leaks. Surfaces must be smooth, clean, and free from defects.

 Capacity-Specific Dimensions:

o 5,000 Litre: Diameter approximately 1,800–2,110 mm; Height approximately

o 10,000 Litre: Diameter approximately 2,000–2,100 mm; Height approximately

 Approved Makes: Preferred brands typically include Sintex, Rotex, Polycon, or other

ISI-marked brands approved by the Engineer-in-Charge.

 Installation Requirements:

o Foundation: Must be installed on a perfectly level, smooth, and firm concrete

base or a dedicated MS stand.

o Inclusions: The rate must include the cost of the tank, taxes (GST),

transportation to the site, octroi, and all necessary labour for installation.

 Warranty: Minimum 12 to 24 months against manufacturing defects or structural

Volume-III, PRICE BID VKV RWSS

 The payment shall be made on Numbers Basis.

Item no:-22 Providing, Supplying & Installatining P.P. PAC Transfer Pump with its

necessary accessarioes (Capacity 1 m3/hr, 30 Mtr. Head)

This document outlines the technical specifications for the design, manufacture, supply, and

installation of a Polypropylene (P.P.) Centrifugal Transfer Pump specifically for Poly

Aluminium Chloride (PAC) transfer, with a capacity of 1 m3/hr at 30 meters head.

1.0 General Specifications

 Application: PAC (Poly Aluminium Chloride) Transfer

 Fluid Handled: Corrosive Chemical (PAC)

 Pump Type: Horizontal, Centrifugal, Single Stage, End Suction, Back Pull-out

 Construction: Solid molded (thermoplastic) construction, not lined, to ensure

corrosion resistance

 Capacity: 1 m3/hr at 30 Mtr. Total Dynamic Head (TDH)

 Operating Speed: 2900 RPM (Approx.)

 Maximum Temperature: Suitable for ambient up to 70∘C

2.0 Material of Construction (MOC)

All wetted parts must be compatible with the corrosive nature of PAC.

 Pump Casing/Volute: Solid Polypropylene (P.P.)

 Impeller: Solid Polypropylene (P.P.), Dynamically Balanced, Semi-open type

 Shaft: Stainless Steel (SS-316 or SS-431)

 Shaft Sleeve: High Alumina Ceramic or PTFE

 Mechanical Seal: GFT/Ceramic/Viton, External Seal (to protect against aggressive

 Fasteners: SS

3.0 Motor Specifications

 Rating: 1 HP to 2 HP (based on manufacturer's design to achieve 30m head for

 Type: Induction Motor, TEFC (Totally Enclosed Fan Cooled)

 Speed: 2900 RPM

 Phase/Voltage: 3 Phase, 415 V, 50 Hz AC Supply

 Protection: IP

4.0 Performance Requirements

 Operating Point: 1 m3/hr at 30 Mtr. Head

 Shut-off Head: Minimum 15%

higher than the rated head

 Efficiency: Maximum efficiency within +10% of rated flow

 Performance Curves: Continuously rising head capacity curve from operating point to

5.0 Scope of Installation and Accessories

The scope includes providing, supplying, and installing the pump, along with:

 Base Plate: Epoxy coated/Polypropylene coated MS base plate

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 Coupling: Rigid/Flexible coupling with coupling guard

 Flanges: P.P. Flanged suction and discharge nozzle as per ANSI/DIN standard

 Valves: P.P. Ball Valve at suction and discharge lines

 Strainers: P.P. "Y" or "Pot" type strainer in the suction line to protect the impeller

 Pipework: P.P. pipe connections for suction and discharge

 Foundation: Fixing the pump on a suitable foundation and alignment

 Corrosion Resistance: Excellent against acids, alkalis, and inorganic salts

 Sealing: Mechanical seal or seal-less magnetic drive (if specified) to prevent leaks

 Maintenance: Back pull-out design for easy maintenance without removing

suction/discharge pipes

7.0 Testing and Inspection

 Hydrostatic Test: Pump casing tested at 1.5 times the maximum pressure.

 Performance Test: Head vs Capacity test to verify 30 m head at 1 m3/hr.

8.0 Mode of Payment:- The payment shall be made on Numbers Basis.

Item no:-23 Providing and Supplying and erecting Direct On-line Electronics Starter.

Rating relay (variable current setting) directly operated in totally insulated elegant

enclosure and 18 Amp. Rating power relay with start - stop button for single phase

operation up to 3 HP as per complete erected on P.W. Block with following features.

Low voltage cut off below 130 V

High voltage cut off above 270 V

Overload protection Indicating LEDs for motor on lv, hv & overload tripping. [Cat.II]

The Direct On-line Electronics Starter should be ISI mark and confirming to relevant IS

It should be Rating relay (variable current setting) directly operated in totally insulated

elegant enclosure and 18 Amp & Cat.III.

The Rating power relay with start - stop button for single phase operation up to 3 HP of this

It should work on Low voltage cut off below 130 V & High voltage cut off above 270 V.

It should Indicating LEDs for motor on LV, HV & overload tripping.

Mode of measurements and payment

The rate includes cost of all labour, materials, tools and plant etc. required for satisfactory

completion of this item. The rate shall be for a unit of One Number.

Item no:-24 Providing laying and jointing in true line and level U.P.V.C. Pipe ( SCH- 40)

for cold water including fittings make PRINCE / SUPREME / ASTRAL / FINOLEX or

equivalent as approved by Engineer In Charge. Pipe shall be fixed on the wall with the

help of clamp at every two metre C/C or shall be concelled as directed including

necessary fittings etc. including testing of pipe and joints and fixing the same with

adhesive solvent, including cost of all materials.

Volume-III, PRICE BID VKV RWSS

24.1 25 mm dia. U.P.V.C. Pipe ( SCH- 40)

24.2 50mm dia. U.P.V.C. Pipe ( SCH- 40)

16.1 GENERAL : The item includes supplying of UPVC soil, waste and rain water (SWR) and

ventilation pipes with fittings of specified diameter including laying, fixing, cutting, joining, painting if

required etc. 16.2 MATERIAL : The pipes shall conforming to IS 13592, UPVC - SWR (Type ‘A’ or ‘B’

as specified) and fittings conforming to IS 13591 shall be free from cracks, flaws and defects and shall

be U. V. stabilized and able to withstand a pressure as mentioned in the schedule of work. Rubber

sealing rings conforming to IS 5382 with lubricant for sliding socket joints as mentioned in the schedule

16.3 EXAMINING : Before laying the pipe line, it shall be first examined for damages and cracks, No

cracked or damaged pipe and fittings shall be used in the work and they shall be removed from the site

by the contractor at his own cost and charge.

16.4 CLEANING : All the pipes and fittings shall be thoroughly cleaned with brush and washed if

necessary to remove any accumulated stone, soil or dirt inside and out side surfaces.

16.5 LAYING : The pipes shall be carefully laid straight to the correct alignment in gradients as

indicated in the drawing. All the pipe shall be used in standard length as far as possible. Cut length may

be used only where it is necessary to make up exact length. The entire length of pipe shall be evenly

supported on bed of the trench through out. Care shall be taken to prevent any sand, earth or other

materials from entering into the pipes during laying. At the end of day's work the open end shall be

suitably plugged.

16.6 FIXING : The pipe line shall be fixed in position as shown in the drawing or as directed by the

Engineer-incharge. The pipe shall be fixed with G.I. clamps not less than 2.0 mm thick of with suitable

UPVC clamps/clips, The clamps/clips shall be fixed into the wall with G.I. nails not less than 40 mm

long and wooden gutties keeping the pipe about 15 mm clear of the wall.

16.7 MAKING JOINT : The jointing of pipes and fittings generally shall be done with approved make

cement solvent including making surface rough or rubber sealing rings with lubricant for sliding socket

joints . The pipe shall be cut to desired length. Care shall be taken that that profile or cut surfaces shall

not be changed and the fibrous material shall be removed with scraper or knife. : 58 :

16.8 DETACHABLE JOINT : Detachable joints shall be made where pipes of different materials have to

be jointed or as specified in the schedule. The flanges are first pushed over the pipe ends and jointing

shall be made by cement solvent.

16.9 PAINTING : In case of underground piping, the pipe line shall be painted with two coats of

approved oil paint of matching colour over a coat of primer.

16.10 DEWATERING : In case of underground pipes ,the contract rate shall include bailing or pumping

out all the water till completion or work if accumulated during the progress of work either from seepage,

springs, rain or any other cause.

Volume-III, PRICE BID VKV RWSS

16.11 THE RATE INCLUDES FOR : 1. Supplying of UPVC-SWR pipes and fittings of specified

diameter. 2. Laying and cutting the pipe wherever necessary and wastage. 3. Fixing the pipe line with

G.I. clamps not less than 2mm thick and G.I./M.S. nails length not less than 40mm or with UPVC

clamps, screws, wooden gutties etc. 4. Making the solution joint and painting if mentioned in schedule

of work the pipe line. 5. In case of underground pipes , dewatering if necessary till completion of work.

6. All necessary materials, labour and use of tools.

16.12 MODE OF MEASUREMENT : The measurement shall be for unit running meter length of pipe

line laid of fixed. The measurement shall be taken along the center line of pipe. No measurement shall

be recorded separately for fittings, making joint, painting if mentioned in schedule of work and testing.

16.13 MODE OF PAYMENT : The contract rate shall be for unit running meter length of pipe line laid

Item no:-25 Providing and fixing chromium plated brass half trun flush cock of approved

quality including fixing in pipe line etc. complete.

25 mm. dia. chromium plated Gun metal wheel valve with bright polished finished shall conform to I.S.

781-1977. The Gun metal check or non-return fullway wheel valve shall be best Indian make and quality.

The 25 mm. dia. Gun metal check or non-return fullway wheel valve as specified above shall be fixed as

directed. The threaded portion shall be smeared with white or red lead and around with a few turns of

fine spun yarn round the screwed end of the pipe. The Gun metal check or non-return fullway wheel

valve shall be then screwed and fixed to water tight position. No water should be flow backward.

Mode of measurements and payment

The rate includes cost of all labour, materials, tools and plant etc. required for satisfactory completion

test of this item.

The rate shall be for a unit of One Number

Item no:-26 Providing, Supplying & Fixing approved make lron clad or metal slaa four

pole change over switch 415v.

200 AMP / 250 AMP Cat-iii

The change over switch should be lron clad or metal slab only.

The change over switch should be ISI mark and confirming to relevant IS standard.

It should be 200 AMP / 250 AMP and Cat-iii.

It should be usable for 415V.

It is imperative that the switch is selected with reliability, safety, and capability in mind. It

is, therefore, important to look at technical factors that include the kind of load, style,

continuous current rating, size and voltage rating. Other considerations include reliability,

compatibility as well as cost.

Mode of measurements and payment

The rate includes cost of all labour, materials, tools and plant etc. required for satisfactory

completion of this item. The rate shall be for a unit of One Number.

Volume-III, PRICE BID VKV RWSS

Item no:-27 Providing and fixing 600mm x 450 mm bevelled edge mirrror of superior

glass mounted on 6mm thick A.C. sheet or plywood sheet and fixing to wooden pluge

with C.P. brass screws and washers.

The mirror storage area ought to be dry and adequately ventilated. Direct sunlight, high

humidity, sudden change in temperatures, as well as chemical fumes, may damage the

mirror; store mirrors vertically: do not lay mirrors flat and stood on wood strips, felt or other

relatively soft materials. When moving glass and glass products by whatever means always

wear gloves and bear in mind that glass remains fragile and can be broken by rough handling.

Care should be taken to ensure the glass is properly secured to prevent it falling and to avoid

any damage. Mount mirrors off the wall with an air space behind. This provides ventilation for

the backing of the mirror and, thus, inhibits corrosion processes; avoid the edges of the mirror

from being in contact with stagnant liquids, such as pools of condensation or back-splashes of

water from a sink. Glass should always be handled with care and the necessary safety

equipment where appropriate.

Mirror Installation Please refer to the Glass and Glazing Federation recommendations for

fixing mirrors. As a general rule avoid contact between the mirror and hard materials such as

metal, porcelain and other breakable materials. Only fit the mirror to flat surfaces and avoid

bending the glass out of plane during installation and use.

The payment shall be made on No Basis

Item no:-28 Filling availabe excavated earth (Excluding rock) in trenches plinth, sides of

foundation etc. in layers not exceeding 20 cm in depth consolidating each deposited

layer by ramming and watering.

The refilling will generally refer to refilling of trenches up to ground level with excavated stuff.

FILLING AND MATERIAL:

Filling materials shall be excavated stuff.

Excavated stuff to be used shall be cleared of all rubbish large size tones, brick bats etc. Big clods shall

be broken down to a size of 50 mm or less.

Refilling shall be done in a systematic manner by the contractor before refilling the trenches the

contractor shall get checked the trenches, ready for refilling.

All space between pipe line and the sides of excavation shall be refilled to the original Surface with earth

or selected materials in layers of 15 to 20 cms well rammed.

Trenches for pipe line shall be back filled after the pipe line is laid tested to a depth of 30 cms above the

pipe except the joint portion.

Refilling on top of pipe shall be carried out carefully with selected soft stuff out of the excavated stuff.

The filling shall be raised about 5 cms to take care of subsequent settlement.

Volume-III, PRICE BID VKV RWSS

The contractor shall be responsible for any settlement during passage of time of during monsoon and

the same shall be refilling with stuff brought from the outside if necessary.

The process of refilling trenches, ramming shall be carried out in such a way as not to endanger the pipe

line already laid.

MODE OF MEASUREMENT AND PAYMENT:

The payment shall be made on cubic meter or refilled volume to original G.L.

The measurement shall be for total volume filled up it includes loading, carting, unloading carting

breaking clods, etc. it also includes cost of bringing selected materials from outside if required.

Surplus earth after refilling at the trenches shall be removed from the site within a radious of 3.00 Km.

No extra payments shall be made for clearance of site.

Payment shall be made on Cu.mt. Basis.

Item no:-29 Filling in foundation and plinth with murrum or selected soil in layers of

cm thickness including watering ramming and consoliating etc. complete.

The refilling will generally refer to refilling of trenches up to ground level with excavated stuff.

FILLING AND MATERIAL:

Filling materials shall be excavated stuff.

Excavated stuff to be used shall be cleared of all rubbish large size tones, brick bats etc. Big clods shall

be broken down to a size of 50 mm or less.

Refilling shall be done in a systematic manner by the contractor before refilling the trenches the

contractor shall get checked the trenches, ready for refilling.

All space between pipe line and the sides of excavation shall be refilled to the original Surface with earth

or selected materials in layers of 15 to 20 cms well rammed.

Trenches for pipe line shall be back filled after the pipe line is laid tested to a depth of 30 cms above the

pipe except the joint portion.

Refilling on top of pipe shall be carried out carefully with selected soft stuff out of the excavated stuff.

The filling shall be raised about 5 cms to take care of subsequent settlement.

The contractor shall be responsible for any settlement during passage of time of during monsoon and

the same shall be refilling with stuff brought from the outside if necessary.

The process of refilling trenches, ramming shall be carried out in such a way as not to endanger the pipe

line already laid.

MODE OF MEASUREMENT AND PAYMENT:

The payment shall be made on cubic meter or refilled volume to original G.L.

The measurement shall be for total volume filled up it includes loading, carting, unloading carting

breaking clods, etc. it also includes cost of bringing selected materials from outside if required.

Surplus earth after refilling at the trenches shall be removed from the site within a radious of 3.00 Km.

No extra payments shall be made for clearance of site.

Payment shall be made on Cu.mt. Basis.

Volume-III, PRICE BID VKV RWSS

Item no:-30 Providing and laying cement concrete flooring 1:2:4 (1 cement : 2 course

sand : 4 graded stone aggregate 20 mm nominal size) laid in one layer finished with a

floating coat of near cement. (40 mm thick)

1. The work shall be carried out as per the description of the item and as per the

specification laid down in PWD hand book vol. I & II (Revised) and as per the

instruction of engineer in charge.

2. The proportion of the concrete shall be one part of a approved quality

Portland cement two parts of sand and four parts of coarse aggregate by volume.

The sand shall be course angular sharp free from any impurities such as foreign

materials dirt, dust etc.

3. coarse aggregates shall be of black trap stone. It shall be hard angular. It shall be free

from any impurities, such as dirt, dust or any foreign materials. The size of the coarse

aggregates shall be of 6mm to 20mm size.

4. The cement shall be of approved quality ISI mark Portland cement for RCC work. The

make shall be as approved by E.I.C.

5. The ingredient shall be mixed on water tight platform in dry condition and potable water

shall be added & water cement ratio is to be maintained as per I.S 450-1980 /

6. It revises Addition in required quantity to achieve desired workability of mix. The mixing

shall be done the by machine mixer.

7. The necessary centering and form work shall have to be provided by the contractor

without any extra cost. It must be leak proof T & P articles required for the job shall

have to be brought by the contractor without any extra cost.

8. The work shall be carried out in such a way as to get the smooth surface without

requirement of plaster. During concreting, consolidation shall be done by the using the

needle vibrator.

9. The payment shall be made on sq.mt. basis

Item no:-31 Distempering with dry distemper of approved brand and manufacture (two

coats) and of required shade on wall surfaces of given an even shade, over and including

a priming coat of whiting after thoroughly brooming the surface free from mortar

dropping and other foreign matter.

This technical specification covers the application of two coats of dry distemper of an

approved brand on new or old interior wall surfaces, including surface preparation, a

priming coat of whiting, and achieving an even, uniform shade, adhering to standards such

1. Materials and Preparation

 Dry Distemper: The dry distemper shall be of an approved brand and manufacturer

(e.g., Asian Paints Tractor Uno, Birla Opus, or equivalent) and shall comply with IS:

427-1965. The shade must be approved by the Engineer-in-Charge prior to

 Mixing: The dry powder is mixed with clean, potable water. The standard mixing

ratio is approximately 0.6 liters of water per 1 kg of dry distemper, or as specified by

the manufacturer.

 Preparation of Mix: Warm water is preferred for mixing. The mixture must be stirred

well and allowed to stand for at least 30 minutes (or overnight if practical) before

Volume-III, PRICE BID VKV RWSS

use. The mix should be prepared in quantities only sufficient for one day's work to

avoid spoilage.

 Whiting Primer: A priming coat of whiting (chalk mixed with water and size) is

applied to create a uniform, non-absorbent surface and ensure proper adhesion.

2. Surface Preparation

 Cleaning: The surface must be thoroughly broomed to remove all mortar droppings,

dirt, dust, and foreign matter.

 New Work: Plastered surfaces must be fully cured (typically 2 months) and dry. The

surface must be sand-papered smooth.

 Old Work: Loose, flaking paint, old whitewash, or existing distemper must be

removed by washing and scrubbing. Any efflorescence or fungus must be removed,

and the source of dampness rectified.

 Repair: Pitting and cracks in plaster must be filled with a mix of Plaster of Paris and

dry distemper of the required color.

3. Application Process

1. Priming Coat: Apply one coat of whiting priming over the prepared surface.

2. Drying Time: Allow the priming coat to dry completely (at least 24 hours).

3. First Coat of Distemper: Apply the first coat of the prepared distemper using a broad,

stiff distemper brush. The application should consist of horizontal strokes followed

immediately by vertical strokes to ensure uniform coverage.

4. Drying Time: Allow the first coat to dry for at least 8 hours or as recommended by

the manufacturer.

5. Second Coat of Distemper: Apply the second coat to achieve a uniform, even shade,

free from brush marks or patchiness.

6. Conditions: Distempering should be done in dry weather, and not on damp or cold

4. Finished Surface

 The finished surface shall be smooth, uniform in color, and free from brush marks,

scratches, or unevenness.

 The surface shall show a matt finish.

5. Cleaning and Protection

 All floors, doors, windows, and electrical fittings must be protected from splashes.

 Any paint splatters must be cleaned immediately with water.

 Brushes must be cleaned with hot water after each day's work.

6. Measurements

 The work is measured in square meters (sqm).

 The rate includes all materials, labour, scaffolding, and T&P (Tools and Plants).

Signature of contractor Executive Engineer

Public Health Works Division