Providing & Laying New Strorm Water Drainage Line at Gujarat Housing Board, T.P.69,D-Cabin area & Construction new catchpits as per requirement at different places in Chandkheda Ward. (ARC) (Re-Tender)

Tender Fee, EMD, technical bid and other relevant PQ

Documents as per check list given in tender shall

besubmittedphysicallyintwocopies(Original&duplicate)in

sealed envelope as per Schedule mentioned in Notice inviting

10 Last date of receiving As per Notice inviting Tender / Addendum / Corrigendum. The

Tenders. tenders received after latest scheduled at eand time will not be

entertained under any circumstances.

11 SubmissionofPriceBid ThePricebidshallbesubmittedonlineonly.Thebiddershallfill percentage

rate on amount of BOQ online only until specified.

Price Bid shall be submitted physically duly signed & seal without

mentioning quoted rated, else it shall be considered as rejected.

12 OpeningofTechnicalbid AsperNoticeinvitingTender/Addendum/Corrigendum.

13 Tendervalidityperiod 120daysfromthelastdateofsubmissionofTender.

14 SecurityDeposit SecurityDeposit shall be at5 %of the contract value in the formof

bankGuarantee/DD(BankGuaranteeissuedfromAhmedabadBranch only as

per para A.4.24).

Thesecuritydepositshallbepayablein15daysfromdateofreceiptof

LOIfailingwhichinterestwillbechargedbyAMC.

15 Deductions from

a. RetentionMoney 2% amount of each Running Bill shall be deducted as a

Retention Money.Suchretentionmoneyshallbereleasedinthe

finalbillofthesaid work.

b. Labourwelfarecess Labour welfarecessaspertheAct,1996(nonrefundable)shall

bedeductedfromeachrunningbill.

16 Defect&LiabilityPeriod Nil

17 CompansationforDelay If the Contractor fails to complete the work under contract bythe

stipulateddate,heshallpayliquidateddamagesof10%of

remainingworkaftertimelimit.

• All the circulars which were published by Authorities of AMC time by time will be

applicable on said Tender and bound to bidder with out any condition.

• Conditional tenders will not be accepted in any case. Municipal Commissioner reserves

the rights to reject any or all the tenders without assigning any reasons thereof.

• The authorized signatory holding Power of Attorney shall only be the Digital Signatory.

In case authorized signatoryholdingPower of Attorneyand Digital Signatoryare not the

same, the bid shall be considered non-responsive.

Seal and Signature of the Bidder Additional City Engineer(West Zone) Date:

Ahmedabad Municipal Corporation

(Oncontractor’sLetterHead/certifiedwithStampandSignwithContactDetail)

TENDER DECLARATION FORM

AdditionalCityEngineer (WestZone),

Ahmedabad Municipal Corporation,

Nameof Work:- Providing & Laying New Strorm Water Drainage Line at Different T.P.

Roads in Chandkheda Ward. (ARC)

I/We the undersigned have carefully gone through and clearly understood the Tender

documents of above mentioned project comprising of Notice Inviting tenders, Articles of

Agreement, Scope of work, Definition of terms, notes Instructions/Information to Bidder,

Condition of Contract, special condition of contract, Appendices, Specifications, Bill of

Quantities, furnished by AHMEDABAD MUNICIPAL CORPORATION.

I/We do hereby offer to execute and complete the whole of the work within the time

specified all in accordance with the specification, designs, drawing and instruction in writing

referred to in the said document and with such materials as mentioned for, at the respective rates

which I/we have quoted in the Price Bid or at such other rates as may be fixed under the

provisions of these conditions.

In the event of this tender being accepted I/We agree to enter into an agreement andwhen

required, execute the contract, according to your form 1 of agreement as or in default where of

I/we bound myself/ourselves to forfeit the "Earnest Money Deposit."

I/We understand that if I/We shall not enter in agreement within fifteen days or as

decided by AMC from the date of receipt of letter of acceptance, you will forfeit the earnest

money paid by me/us and take necessary action as deemed fit.

I/We have enclosed a Demand Draft / Bank Guarantee as an “Earnest Money Deposit",

for the sum as mentioned in NIT, the full value of which is to be absolutely forfeited to the

Employer If I/We fail to commence the work specified. Otherwise the Employer shall retain the

said sum, as on account of such Security Deposit as provided for in the aforesaid documents.

I/We agree not to employ sub-contractors other than those that may be approved in

accordance with conditions in the aforesaid documents.

I/We understand that Municipal Commissioner is not bound to accept the lowest or any

tender, which are received. I / We also understand & agree that Municipal Commissioner

Reserves theright to allot numberoftenders to successful bidders at his solediscretion in caseif I /

We am/are lowest in more than one tender.

I/We am/are bound to execute the job if the work order is issued within 120 days from

the date of opening of the tender.

Iam bound to executethework bymaintaining all Qualityaspects/parameters mentioned in

the tender terms and conditions. I am also bound to submit all supporting Genuine Original

documents as and when asked and if any discrepancy found in such documents as well as in the

executedWorkwithrespecttoQuality/Quantityat anystageofworkorevenaftercompletionof work, it

will be solely my Responsibility. I am bound to prove originality of all documents submitted by

me and if any Documents found false/fake then Municipal Commissioner/AMChas right to take

any action/penalty/punishment against me.

I am also bound that if I/we, indulged into any malpractice and/or used any inferior

quality and/or the construction of road is found to be of an inferior quality under this contract

than in such case Municipal Commissioner/AMC has right to debar/ blacklistpermanently.

I/We agree to paythe Government income-Tax, (excluding GST), Octroi duties, Royalty

on material (i.e. Aggregate, Sand etc.)And any other taxes prevailing and from time to time on

such items on which the same are leviable and the rates quoted by me/us are inclusive of the

Yours faithfully

Seal and Sign of Contractor

AHMEDABAD MUNICLPAL CORPORATION MAHANAGAR SEVA SADAN

DRAINAGE PROJECT TENDER FORM

AHMEDABAD MUNICIPAL CORPORATION

ENGINEERING DEPARTMENT

Name of Work :- Providing & Laying New Strorm Water Drainage Line at Gujarat Housing Board,

T.P.69,D-Cabin area & Construction new catchpits as per requirement at different places in Chandkheda

I. Items Qty Uni Rate w/o GST Amount (Rs.)

Excavation for pipe line trenches for water

supply, sewerage lne, manhole etc. all with

shoring and struting if required as per required

gradient and line including safety provisions

using siterails and stacking excavated stuff

1 including up to all required lead cleaning the site

etc. complete for all lifts and strata as specified and

direction of engineer incharge. In all sorts of soil

and soft murrum

a Upto 1.50 mt depth 2500.00 Cmt 89.00

b 1.5 mt to 3 mt depth 2500.00 Cmt 98.00

c 3.00 mt to 4.50 mt depth 1500.00 Cmt 103.00

d 4.50 mt to 6.00 mt depth 500.00 Cmt 109.00

Conveyance charge of earth, lime, murrum,

building rubbish,manure, garbage, sludge,

excavated rock, fly ash, aggregates of any kind

executed outside the road site. Rate also includes

2 spreading & levelling etc complete. Internal

conveyance above 50 mt done within the work

site is not payable. Note: Quantity Shoud not be

more then the quantity equal to excavation minus

back filling. (no bulkage

e Lead From 4 Km to 5 Km. 750.00 Cmt 408.41

f Lead From 5 Km to 10 Km. 500.00 Cmt 417.67

g Lead From 10 Km to 15 Km. 1200.00 Cmt 425.67

Extra rate over item of excavation of earth if

excavation is to be done in wet condition without

3 resorting to pumping out incl. of bailing out 5.00 Cmt

Excavation in bituminous road as per required

gradient and line including safety provisions

4 using site rails and stacking excavated stuff 500.00 Cu.m

inclucing up to all required lead cleaning the site

etc. complete for all lifts as specified.

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 IS 456 2000 in

masses by weigh batching ) using granite,

quartzite trap metal of size 6 mm to 20 mm for

RCC work, including scaffolding centering, form

work, needle vibrated consolidation, curing

comp. up to 6 meter depth or height (excluding

cost of reinforcement and neat finishing) with

centering and shuttering/ deshuttering etc. comp.

for structure for other than water retaining.

1. Footing (without form work) 7.00 Cu.M 4732.00

2. Footing for column or foundation (with form 7.00 Cu.M 4906.00

C.C. M-25 Control concrete for water retaining

Providing and cast in situ C.C. in grade M-25

proportions of ingredients as per mix design by

weigh batching using granite, quartzite trap

metal of size 12 mm to 20 mm and or 6 mm to

12 mm including scaffolding centering

formwork, needle vibrated consolidation, curing

and hydraulic testing etc. complete (excluding

cost of reinforcement) with centering and

shuttering/ deshuttering etc. comp. up to 6 meter

height /depth Av. G.L.for all water retaining

1. Bottom slab or floor slab with shuttering 10.00 Cu. M 8077.00

2. Bottom slab or floor slab – without shuttering 5.00 Cu. M 6705.00

3. Bottom dome / roof dome 2.00 Cu. M 8281.00

4. Slant slab/conical wall or conical shell 2.00 Cu. M 8266.00

5. Beams /Ring beams/Ring girders 2.00 Cu. M 8347.00

Vertical Wall 0.00

6. up to 15 cm thick 2.00 Cu. M 8597.00

7. Above 15 cm and up to 20 cm 1.00 Cu. M 8262.00

8. Above 20 cm and up to 25 cm 1.00 Cu. M 8006.00

10. Columns 1.00 Cu. M 9195.00

7 Steel /Reinforcement bars

Supplying cutting, bending, binding and placing in

position steel as per plan and design and as

per ISS 2502 including cost of steel and binding

wire for reservoirs/structures only including lift

up to 6 meter height or depth below G.L. for all

9.4 Do – deformed (TMT) bars confirming to 1.00 MT 77504.00

relevant IS Fe – 500 grade for all diameters.

Brickwork using common burnt clay building

bricks having crushing strength notless than

8 35kg./Sq.Cm. in foundation and plinth in Cement 10.00 Cmt

Mortar 1:5 (1-Cement:5-finesand) (B)

Conventional (upto 10 ton)

9 Cement Plaster ((I.No.17.6 + 17.69 R & B SOR

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 200.00 Sq.m

mortar 1:3 (1- cement:3-sand) finishing with a

floating coat of neat cement slurry.

B) – do – Without water proofing compound. 25.00 Sq.m 195.00

Providing and supplying Lowering, laying and

jointing ISI marked only standard length

Stonewate pipes in standard lengths of following

class and diameter with cement joints in

C.M.1:1 proportion in proper position, grade and

alignment at all level as directed by Engineer-

10 in-charge including conveyance from stone to

site of work, Jointing material etc.comp.

including all taxes,insurance, transportiton, fright

charges, octroi,inspection charges, loading,

unloading, conveyance to departmental

stores,stacking etc.complete

Providing and supplying ISI Standard R.C.C,

pipes (of Sulphate Resisting Cement) in standard

lengths of following Class and diameter suitable

for either collar joints or rubber ring joints

including all taxes, insurance, transportation,

freight charges, octroi, inspection charges,

11 loading, unloading, conveyance for departmental

stores, stacking etc. Note : One collar should be

supplied with each full length plain ended RCC

pipe, cost included in rates below. One rubber

ring should be supplied with each full length

socketed pipe, cost included in rates below.

10.1.D Class NP3 Test Pressure 0.7 Kg/sq.cm

Lowering, laying and jointing R. C. C. pipes in

C. M. 1:1 1/2 of following diameters in

proper position, grade and alignment at all

12 level as directed by Engineer-in-charg

including conveyance from stores to site of

work, labour, giving hydraulic testing as per ISI

Providing and supplying ISI pipes in standard

lengths of following Class and diameter suitable

for either collar joints or rubber ring joints

13 including all taxes, insurance, transportation,

freight charges, Octroi,Inspection Charges

Loading, Unloading Conveynce to Departmental

Store ,Stocking etc.

Lowering, laying and jointing R. C. C. pipes in

C. M. 1:1 1/2 of following diameters in

proper position, grade and alignment at all

14 level as directed by Engineer-in-charg

including conveyance from stores to site of

work, labour, giving hydraulic testing as per ISI

Filling available excavated earth (excluding

rock) in trenches, plinth, sides of foundations

15 etc. in layers not exceeding 20 cm. in depth 1000.00 Cu.m

consolidation each deposited layer by ramming

Refilling the pipeline trenches incl.

16 ramming, watering, consolidating desposal of

surplus stuff as directed within a radius of 3 km.

a Refilling as directed 1500.00 Cu.m 22.00

b --do-- with selected soil brought from outside 500.00 Cu.m 175.00

Constructing Chamber of following size

including excavation, refilling, BBCC (1:5:10)

for foundation, C.C.Channel (1:2:4), finished

mm thick cement plaster inside in CM

1:3, finishing with cement slurry, Brick masonary

in CM 1:5 & excluding the cost of chamber

seat cover etc..completed.

a 0.60 X 0.45 mt. size Inside Clear, Depth from 1.00 No 2261.61

0.0 to 0.90 meter for pipe dia <=150 mm.

b 0.60 X 0.75 mt. size Inside Clear, Depth from 1.00 No 2874.11

0.0 to 0.90 meter for pipe dia <=230 mm.

c 0.75 X 0.75 mt. size (Inside Clear) Depth from 2.00 No 3905.36

0.0 to 1.20 meter for pipe dia <=230 mm

Constructing Slab Type M.H. Chamber Of The

Following Size Including Excavation, Refilling,

Brick Bats Cement Concrete (1:5:10) of

thickness 15 C.M., CC Channel (1:2:4) of

thickness 10 C.M., finished 15 mm thick cement

plaster inside & outside (Only for shaft) In Cm

1:3, Finishing With Cement Slurry, P/F 4 Mm

Dia M.S.Steel Hdpe Coated Steps 35 Cm C/C At

18 35 CmStaggered Masonary In Cm 1:5, Rcc Slab In

Cc 1:1.5:3 of thickness 15 C.M.,Including

Cantering & Reinforcement (Single jalli at

C.M. c/c bothway 10 mm dia.)But Excluding

The Cost Of Manhole Seat Cover

Etc..Completed Of Size 0.75 X 1.00 Meter

(Inside Clear, M.H. length should be parallel to the

a 1.00 to 2.00 meter depth, (Slab at Ground level) 1.00 No 5651.79

(for pipe dia <=230 mm)

b 2.00 to 3.00 meter depth, (Slab at below 0.60 mt. 1.00 No 11395.54

From G.L.)(for pipe dia <=300 mm)

Rate reduction over item of Constructing Slab

Type M.H. Chamber of size 1.00 x 0.75 mt for

constructing slab @ depth more than 0.60 mt

19 below Ground Level (Max. 3 unit of DM should 5.00 DM

be reduced in this item) (As Per R.A. Based on

Building SOR 2015-16)

Constructing Slab type M.H. Chamber of the

following size including excavation, refilling,

brick bats cement concrete(1:5:10) of thickness

15 C.M., CC Channel (1:2:4) of thickness

C.M., finished 15 mm thick cement plaster

inside & outside(Only for shaft) in CM 1:3,

finishing with cement slurry, P/F 4 mm dia

M.S.Steel HDPE coated steps 35 cm c/c at 35 cm

staggered in masonary CM 1:5, RCC Slab in CC

20 1:1.5:3 of thickness 23 C.M., including

Cantering & reinforcement (double jalli at

C.M. c/c bothway 12 mm dia.) but excluding the

cost of Manhole seat cover etc..completed. of

Size 1.00 X 1.40 meter (Inside Clear,M.H.

length should be parallel to the flow, for pipe dia

a 1.00 to 2.00 meter depth, (Slab at Ground level) 30.00 No 10177.68

b 2.00 to 3.00 meter depth, (Slab at below 0.6 mt. 10.00 No 19258.04

c 3.00 to 4.00 meter depth,(Slab at below 1.00 mt. 2.00 No 26867.86

d 5.00 to 6.00 meter depth, (Slab at below 1.00 mt. 2.00 No 44050.00

e 7.00 to 8.00 meter depth, (Slab at below 1.00 mt. 0.00 No 66632.14

Extra rate over item of Constructing Slab

M.H. Chamber of following size for constructing

M.H. Chamber, per 1.00 Decimetre of additional

depth or part thereof. etc. complete. Of size 1.00 x

1.40 mt. (inside clear) and Depth from

a 4.00 to 5.00 meter depth, 1.00 DM 521.43

b 6.00 to 7.00 meter Depth 1.00 DM 536.61

c 8.00 to 9.00 meter Depth 1.00 DM 551.79

d 9.00 to 10.00 meter Depth 1.00 DM 564.29

Rate reduction over item of Constructing Slab

Type M.H. Chamber of size 1.00 x 1.40 mt for

constructing slab @ depth more than 0.60 mt for (

22 MH 2 to 3 mt depth) and 1.0 mt for (MH above 3.0 1.00 DM

mt depth) below Ground Level (Max. 5 unit of

DM should be reduced in this item)

Dismantling of existing Arch type manhole upto

Arch and then Const. Slab type manhole of

following size incl. excavation, refilling and &

finished 15 mm thick cement plaster inside in

CM 1:3,P/F 4mm dia M.S. Steel HDPE coated

23 steps 35 cm c/c at 35 cm staggered in

masonry CM 1:5, incl.cost of RCC Slab in

CC 1:1.5:3, including Cantering & reinforcement

as directed by engineer in charge. Rate includes

carting of debris and excavated soil

a 1.00 x 0.75 mt (inside clear) RCC Slab 0.00 No 5892.86

of thickness 15 C.M & reinforcement (Single

jalli at 15 C.M. c/c bothway 10 mm dia.) From 0 to

2 mt depth (Slab at Ground level)

b 1.00 x 0.75 mt (inside clear) RCC Slab 0.00 No 8883.93

of thickness 15 C.M &reinforcement (Single jalli

at 15 C.M. c/c bothway 10 mm dia.) From

to 3 mt depth (Slab at below 1.00 mt. From G.L.)

c 1.40 x 1.00 mt (inside clear) RCC Slab 0.00 No 8080.36

of thickness 23 CM &reinforcement (double jalli

at 15 C.M. c/c bothway 10 mm dia.) From

to 2 mt depth (Slab at Ground level)

d 1.40 x 1.00 mt (inside clear) RCC Slab of 0.00 No 17008.93

thickness 23 CM & reinforcement (double jalli at

15 C.M. c/c bothway 10mm dia.) From 2 to 3mt

depth (Slab at below 1.00 mt.From G.L.)

e 1.40 x 1.00 mt (inside clear) RCC Slab 0.00 No 24776.79

of thickness 23 CM & reinforcement (double jalli

at 15 C.M. c/c bothway 10 mm dia.) From

to 4 mt depth (Slab at below 1.00 mt. From G.L.)

Cutting the pipes of following dia coming in the

new M.H.in running sewer including cutting

including removingdebris /silt from the M.H.

and carting at a suitable distance etc..complete as

directed. No payment for M.H. work will

bemade until pipe is not cut completely in all

a 150 mm to 300 mm dia. 10.00 No 1133.93

b 400 mm to 600 mm dia. 10.00 No 1687.50

c 700 mm to 900 mm dia. 5.00 No 2008.93

Constructing Bombay Pattern Type Catch Pit of

size 0.60 x 0.60 depth up to 1 mt including

excavation, B.B.C.C. (1:5:10), 23 cms thick

brick maso. wall in the prop. of CM (1:6)

with 40 mm thick IPS flooring in the prop M15

25 at bottom and 15 mm thick cement plaster 300.00 No

inside the catch pit in the proportion of CM (1:3)

with out jali etc.comp. as directed. (As per

R.A. Based on Building SOR 2015-16)

Set F.R.C. Strom Water Grating Grating(Jali):

740 x 740 x 90mm square jali, 10:00 MT

load design, 90x2mm MS flat allround, Frame:

600 x 600mm clear opening, outer size- 900 x

900 x 165 mm. On the upper periphery of frame

25 x 3mm wide MS flat should be well

embded in concrete to protect the edges of frame

Making connection to the ex.M.H.in running

sewer incl. Dewatering and other required

27 machinery etc. of following dia pipes at any

convenient time. All damaged work shall be well

repaired as per instructions. etc..complete.

a 150 mm to 300 mm dia. 20.00 No 1339.29

b 400 mm to 600 mm dia. 5.00 No 2232.14

c 700 mm to 900 mm dia. 1.00 No 3125.00

Repairing damaged M.H. and rasing M.H. up to

road level incl. removing damaged brick work

and repairing by brick masonry in C.M. 1:5 and

28 plaster in C.M. 1:3 and fixing C.I. steps and

existing MH sheet cover, removing the debris

from MH and carting the same as directed

a up to 0.15 mt. (@ Two Coarse) 10.00 No 732.14

b up to 0.35mt. (@ Four Coarse) 10.00 No 1160.71

c up to 0.65 mt. (@ Seven Coarse) 10.00 No 1794.64

d up to 0.90 mt. (@ Ten Coarse ) 5.00 No 2160.71

Repairing damaged I.C./ Raising removing

damaged brick work and repairing by brick

masonry in C.M. 1:5 and plaster in C.M. 1:3 and

29 fixing C.I. steps and existing chamber sheet 10.00 No

cover,removing the debris from chamber and

carting the same asdirected.

Providing Kachha of Pakka Dummy in the

30 following dia pipes and removing the same after

completion of the connection work as directed.

a 100 mm to 300 mm dia. 30.00 No 199.11

b 350 mm to 600 mm dia. 10.00 No 302.68

c 650 mm to 900 mm dia. 10.00 No 642.86

Providing & Constructing Precast RCC Manhole

in RCC M-40 grade Controlled concrete as per

drawing, in OPC including excavation, 80 mm

31 thick P.C.C. in M-15, Reinforcement in TMT-

500, PVC Foot steps, Providing & fixing FRC

Manhole frame & cover complete etc.

b For 300,450 & 600 dia. Pipe(upto 4 m. depth)

i 1.2 dia x 2.0m Depth 0.00 No 38936.00

ii 1.2 dia - 2.01 to 2.99 m Depth 0.00 Rmt 9034.00

a For 900 mm dia.pipe for any depth & For

300,450 & 600 dia. Pipe (more than 4 m. depth)

i 1.5 dia x 2.0m Depth 0.00 No 50265.00

ii 1.5 dia - 2.01 to 2.99 m Depth 0.00 Rmt 10666.00

iii 1.5 dia x 3.0m Depth 0.00 No 58129.00

iv 1.5 dia - 3.01 to 3.99 m Depth 0.00 Rmt 10680.00

v 1.5 dia x 4.0m Depth 0.00 No 67414.00

vi 1.5 dia - 4.01 to 4.99 m Depth 0.00 Rmt 12383.00

Constructing Scrapper Slab Type M.H. Chamber

of following size incl. excavation, refilling,

brick bats cement concrete (1:5:10) of thickness

15 C.M.,C.C.channel (1:2:4) of thickness

C.M., finished 15 mm thick cement plaster

inside & outside (only for shaft) in C.M.1:3,

finishing with cement slurry,P/F4 mm dia M.S

Steel HDPE coated steps 35 cmc/c at 35 cm

staggered Masonry in C.M.1:5, RCC slab in CC

1:1.5:3 of thickness 23 C.M, including

Cantering & reinforcement (double jalli at

C.M c/c both way 12 mm dia.) but excluding the

cost of Manhole seat cover etc. completed

(Inside Clear, M.H. length should be parallel to

a <= 1000 mm dia.

c <= 1400 mm dia.

d <=1600 mmdia.

Extra rate over item of Constructing Scrapper

Slab Type M.H. Chamber of following size

33 for constructing M.H. Chamber, per

Decimeter of additional depth or part there of

etc.complete. (inside) and depth from

a For Pipe dia. <= 1200 mm

i 1.8 m x 1.8 m Manhole depth from 4.0 to 5. 0 m 0.00 DM 732.25

b For Pipe dia. <= 1400 mm

ii 2.0 m x 2.0 m Manhole depth from 4.0 to 5. 0 m 0.00 DM 801.69

c For Pipe dia. <= 1600 mm

iii 2.2 m x 2.2 m Manhole depth from 4.0 to 5. 0 m 0.00 DM 872.03

Temporary / Permanent Plugging for

blocking of sewer line, branch connections

34 and diversion of flows and removal of all

plugs by any means etc. comp. as directed by

Engineer In Charge of the work.

Providing Dead Cantering using good quality

Country Wood Planks, wall Plate of required

thickness and size including placing the nece.

supports of reqd. size, nailing, fixing with

mortar, levelling. All specification for dead

centring as per standard engg. practice etc.

comp. as directed.

Barricading the entire break down or excavated

area on rental basis using wooden ballies /

M.S.angles at max.2.00 meter centre to centre,

C.G.I. Sheet, reflective paint / Board out side to

avoid accident & for smooth traffic diversion &

movement including cautionary board etc. Item

36 also includes for making temporary sufficient 1000.00 Rmt

nos of lighting arrangement through out the work

with necessary required arrangement. The same

shall be removed after completion of work.

(Only for break down work from start to

Providing Dummy or Plug the Running Sewer

by using M.S. Plate , safety

measures,Labour,mud pump,D.G. set &

Transportation of the same machinary also

inclues removing of dummy when required and

placed labour & Supervisor remain present till

the work comp.etc. as directed.

a 600 mm dia To 1200 mm dia 0.00 No. 60000.00

b Above 1200 mm dia 0.00 No. 90000.00

38 Dewatering by pumping set

Dewatering by pumping set of Dewatering by

pumping set of required capacity including

temporary platform carting pumping at site and

fixing the same in position including all

accessories, and fuel and labour etc.complete.

Pump set of Capacity 1000.00 HP/Hr. 18.32

Hiring and operating the 20 KV 3 Phase Electric

Generator for operating desilting machinery, and

lighting and other requirements with Arranging

39 diesel to run the D.G. Set Do As Directed. 8 Hrs 5.00 Shift

Shift. (No payment should be allowed for non

working condition of machinery

40 Idealing Charge for 20 KV 3 Phase Electric 5.00 Shift 1800.00

Generator (As per Market Rate on page No.

) Note:- As per Market rate convert it into Shift to

Hiring and operating the 60 KV 3 Phase Electric

Generator for operating desilting machinery and

lighting and other requirements with Arranging

41 diesel to run the D.G. set Do As Directed. 8 Hrs 5.00 Shift

Shift.(No Payment should be Allowed for non

workinh Condition of machinery

42 supply super sucker machine incl. fuel,machine 0.00 Shift 39000.00

operator ,driver,loading unloading of

pipe,suction machine,two silt loader,removing

silt from loader at perticular place etc.comp.as

Hiring of Tractor with trolley considering 8 hrs. as

43 working day hours incl. Driver 10.00 Day

Providing & Supplying JCB Machine on rental

basis in case of emergency situation and break

down type work & also during unavoidable

condition as per instruction of engg.incharge

rate includes all nece. shifting, fuel and operating

44 charges and stacking of useful & non-useful 200.00 Hour

materials separately up to store. (No payment

should be allowed for non working condition of

machinery and for pipe line excavation and

Providing & Supplying Hitachi Machine - 110

capacity on rental basis in case of emergency

situation and break down type work & also

during unavoidable condition as per instruction

45 of engg.incharge , rate includes all nece. shifting, 10.00 Hr

fuel andoperating charges . (No payment should be

allowed for non working condition of

Providing & Supplying Hitachi Machine -200

capacity on rental basis in case of emergency

situation and break down type work & also

during unavoidable condition as per instruction

of engg.incharge , rate includes all nece. shifting,

fuel and operating charges. (No payment should be

allowed for non working condition of

Providing & Supplying hydra crane machine of

12 tone capacity on rental basis in case of

emergency situation and break down type work

& also during unavoidable condition as per Per

47 instruction of engg.incharge , rate includes all 10.00 Hr

nece. shifting, fuel and operating charges . (No Shift

payment should be allowed fornon working

condition of machinery) (Based on central work

Supplying electric breaker machine for RCC

slab or asphalt demolishing work on site by

using operator, fuel, power supply etc.complete

as directed. (no payment should be allowed for

non working condition of machinery and

for pipe line excavation and M.H. work.

Allowed only for break down work)

Supplying Pneumatic Breaker Machine for

RCC Slab or Asphalt Demolishing Work on site

by using Operator, fuel, power Supply etc.

Complete as Directed. (No payment should be

allowed for non working condition of machinery

and for pipe line excavation and M.H. work.

Allowed only for break downwork)

Providing & Supplying JCB Breaker Machine on

rental basis for demolish RCC,asphalt

etc.demolition type work & also during

50 unvoidable condition as per instruction of engg, 20.00 Hour

incharge , rate includes all nece.shifting,fuel and

operating charges.

Carting and Fixing M.H. Chamber or Catchpite

Seat and Cover in line and level to match

exisisting road level in CC 1:2:4 and finishing

51 smooth, watering and protecting for 7 days etc. 5.00 No.

complete as directed.M.H. seat cover will be

supplied byA.M.C.(from any store)

52 Providing F.R.C. MH seat cover incl. carting to the

work site etc. comp. Directed.(Based On Rate

Of Central Store Circular No.11/2022-23,

a (SET cover and frame) F.R.C. Extra Heavy Duty

[EHD- 35] Machinehole Covers & Frame-

560mm ø clear opening, The dimension of frame 70.00 Set

and cover as per mentioned in Amend No.1 to IS

a1 (Only Cover ) F.R.C. Extra Heavy Duty [EHD-

35] Machinehole Covers & Frame- 560mm ø

clear opening, The dimension of frame and cover 20.00 No

as per mentioned in Amend No.1 to IS 12592 :

a2 (Only Frame ) F.R.C. Extra Heavy Duty [EHD-

35] Machinehole Covers & Frame- 560mm ø

clear opening, The dimension of frame and cover 20.00 No

as per mentioned in Amend No.1 to IS 12592 :

b (SET cover and frame) F.R.C. Heavy Duty [HD-

20] Machinehole Covers & Frames- 560mm ø

clear opening, The dimension of frame and cover 10.00 Set

as per mentioned in Amend No.1 to IS 12592 :

(Only Cover) F.R.C. Heavy Duty [HD-20]

Machinehole Covers & Frames- 560mm ø clear

b1 opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

2002 table 1 (Only Cover)

(Only Frame ) F.R.C. Heavy Duty [HD- 20]

Machinehole Covers & Frames- 560mm ø clear

b2 opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

2002 table 1 (Only Frame )

(SET cover and frame) F.R.C. Medium Duty

[MD-10] Machinehole Covers & Frames-

c 560mm ø clear opening, The dimension of frame 10.00 Set

and cover as per mentioned in Amend No.1 to IS

12592 : 2002 table 1 (SET cover and frame)

c1 (Only Cover ) F.R.C. Medium Duty [MD- 10]

Machinehole Covers & Frames- 560mm ø clear

opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

c2 (Only Frame ) F.R.C. Medium Duty [MD- 10]

Machinehole Covers & Frames- 560mm ø clear

opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

d (SET cover and frame) F.R.C. Medium Duty

[MD-10] Chamber Covers & Frame- 600 x

mm clear opening, The dimension of frame and 10.00 Set

cover as per mentioned in Amend No.1 to IS

d1 (Only Cover ) F.R.C. Medium Duty [MD- 10]

Chamber Covers & Frame- 600 x 450 mm clear

opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

d2 (Only Frame ) F.R.C. Medium Duty [MD- 10]

Chamber Covers & Frame- 600 x 450 mm clear

opening, The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

e (SET cover and frame) F.R.C. Light Duty [LD-

2.5] Chamber Cover & Frame - 600 x 450mm

clear opening,The dimension of frame and cover as 10.00 Set

per mentioned in Amend No.1 to IS 12592 :

e1 (Only Cover ) F.R.C. Light Duty [LD-2.5]

Chamber Cover & Frame - 600 x 450mm clear

opening,The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

e2 (Only Frame ) F.R.C. Light Duty [LD-2.5]

Chamber Cover & Frame - 600 x 450mm clear

opening,The dimension of frame and cover as 10.00 No

per mentioned in Amend No.1 to IS 12592 :

Supplying, labour for break down repairing work

for activitieslike excavation, disliting, removing

debris from trench backfilling etc. comp. as

directed by Eng.in charge. (Rate as perLabour,

Skill Development & Employment Department,

Government of Gujarat Notification dated 27th

a Mazdoor At Day/Night (Unskilled Zone-1 Empl. 10.00 Nos. 452.00

b Mukadam At Day/Night (Semi-skilled Zone-1 10.00 Nos. 462.00

54 Basic Rate for Labour

Labour charges - Blacksmith 1st Class 1.00 Nos. 681.00

Labour charges - Blacksmith 2nd Class 1.00 Nos. 612.00

Labour charges - Breaker 1.00 Nos. 578.00

Labour charges - Extra labar sinking and 1.00 Nos. 2500.00

Labour charges - Mason 1st Class 1.00 Nos. 713.00

Labour charges - Mason 2nd Class 1.00 Nos. 633.00

Labour charges - Welder 1.00 Nos. 689.00

Labour charges - Mazdoor (Female) 1.00 Nos. 450.00

Labour charges - Mazdoor (Male) 1.00 Nos. 493.00

55 Filling in plinth with sand under floors including

watering ramming, consolidating and dressing 20.00 Cu.M

56 Miscellaneous providing C:C:M:100 for

pipes using trap metal size 12 mm to 50mm incl.

form work curing consolidation etc. complete 2.00 Cu.M

for various location on pipe line using trap metal

20 mm nominal size

Providing, laying, spreading and compacting

graded stone aggregate to wet mix macadam

specification including premixing the Material

with water at OMC in mechanical mix plant

57 carriage of mixed Material by tipper to site,

laying in uniform layers in sub- base / base

course on well prepared surface and compacting

with vibratory roller to achieve the desired

density as per Codal Provision.

a Production & Supply of WMM 500.00 Cmt. 1708.13

b Laying of WMM 500.00 Cmt. 31.25

Structural steel work riveted,bolted or welded in

built up for all type sections, in framed work,

including cutting, hoisting, fixing in position and

58 applying a priming coat of approved steel primer 100.00 Kg

all complete as per the structural designs and

directions of Engineer in charge.

Extra rate over item of excavation of earth for

excavation of asphalt pavement/RCC of

thickness up to 0.20 meter including demolishing

the asphalt carpet, metal, soiling /cutting

reinforcement etc.comp. with stacking the

material as directed. (based on previously

approved rate by CE sir

a up to 0.20 meter thickness (By Manual) 100.00 Smt. 71.10

b Up to 0.30 meter (By any type of Breaker 700.00 Smt. 177.76

Machine or R.C.C.Cutter machine including cost

of operator, fuel, & transportation etc complete.

0.30 meter & above (By any type of Breaker

c Machine or R.C.C.Cutter machine including cost 50.00 Smt.

of operator, fuel, & transportation etc complete.

Provdg. & laying S.W. Gully trap with brick

masonry chamber & water tight G.T.Stone

60 including fixing of cover Square mouth trap 100 1.00 No.

mm x100 mm size P-Trap

Providing and fixing cast iron manhole frame of

weight 80 to 85 kg suitable for existing EHD-35

FRC MH cover, rate also incl. loading,

unloading and fixing the frame in line and level to

match exisisting road level in CC 1:2:4 and

finishing smooth, watering and protecting for

days etc. complete as per instruction by engg. in

charge. (Approved Rate)

Raising of Existing manhole item

includes,cutting of existing road surround by

Manhole by diamond cutter machine dismantling

of road in confined area by breaker machine and

carting of dismantal material.item also included

necessarey brick work to raise the manhole at

road level in CM 1:3 item also included fixing of

Manhole frame at exact road level by using

MaserEmaco S 488 trowable fibre reinforced

thixotropic repair mortal material Laying of

62 concrete made form Master Emaco 5 346 20.00 No.

flowable micro concrete material in desired

thickness and laying of hot bitumanous material in

Upper layer and compaction of hot

bitumanious material by palte compactor

machine .Rate also included necessary plaster at

inside of manhole in CM 1:3 in 20 MM

thickness on raised brickwork.(As per Road

Project Approved rate w/o GST)

Providing and laying cement concrete work

1:2:4 (1-Cement:2-Coarsesand:4-graded stone

aggregates 20mm nominal size) and curing

complete excluding cost of formwork and rein

for cement for reinforced concrete work in

(A)Foundations,footings,Base or columns and

Mass concrete (upto 10 ton)

64 Demolition incl. stacking of serviceable

materials & disposal of unserviceable materials

with all lead and lift.

(a) R.C.C. Work 2.00 Cmt. 1047.38

(b) Brick work in cement mortar 2.00 Cmt. 544.95

(c) Dismentaling tiled of stone floors laid in mortar 2.00 Smt. 47.25

including stacking of serviceable materilas and

disposal of unserviceable materials with all lead

CONTRACTOR'SSIGNATURE ADDL.CITYENGINEER

& STAMP (West Zone)

INSTRUCTIONSTOBIDDERS

Competent authority on behalf of The Municipal Commissioner, Ahmedabad Municipal

Corporation (referred to as Employer in these documents) invites sealed bids for the

construction of works (as defined in these documents and referred to as “the work”)

detailed in the table given in the Invitation for Bid (hereinafter called as IFB.) from

competent bidder. The bidders may submit bids for the works detailed in the table

2.0 SourceofFunds

AhmedabadMunicipalCorporationhasarrangedthefundforthisproject.

3.0 EligibleBidders

The Invitation for Bids is open to all eligible bidders meeting the eligibility criteria as

defined in this tender.

All bidders shall provide Qualification Information and Forms of Bid mentioned in the

Clause-14. An agency that has been engaged by the Employer to provide consulting

services forthepreparation orsupervision oftheworks, and anyofits affiliates, shall not be

eligible to bid.

Any entity which has been declared as non-performing by NHAI / GoG / AMC or the

firms those are blacklisted/ debarred for specified period by AMC, Governement of

Gujarat, Government of India or any other entity controlled by it, would not be eligibleto

submit the Bid.

QualificationoftheBidder

Requires registration:- Register as per Notice Inviting Tender having in Road Works

in PWD in Govt. R&B / CPWD / AMC or equivalent register with any other state Govt.

or institutions.

DISQUALIFICATION

Eventhoughthebiddersmeettheabovementionedqualifyingcriteria,theyaresubjectto be

disqualified if they have,

• Made misleading or false representations in the forms, statements, affidavits and

attachments submitted in proof of the qualification requirements; and/or

• Record of poor performance such as abandoning the works, not properly completing

the contract, inordinate delays in completion, litigation history, or financial failures

etc. or debarring from AMC work etc.

• Tamperedthebiddocumentinanymanner.

• Colludedwithotherprospectivebidders forthisworktoarrive atquotedpricesforthe

purpose of restricting competition.

• Indulged in inducement of any official of AMC and/or their consulting engineer and

other advisors in any manner whatsoever.

• Proposalnotsubmittedinaccordancewiththistender.

• During validity of the proposal, or its extended period, if any, the bidder changes his

commercial terms.

• Thebidderqualifiestheproposalwithhisownconditions.

• Proposalisreceivedafterduedateandtime.

• Commercialproposalisenclosedwiththesameenvelopeastechnicalproposal

• Theenvelopedoesnotshowontheoutsidethereferenceofbidandthusgets opened

before the due date of opening.

• TheE.M.D. is not deposited in full and in themanneras specified in theclauseof

Earnest Money Deposit.

• ThetenderisinalanguageotherthanEnglishordosenotcontainsitsEnglish Translation

in case of other language adopted for tender preparation.

• Thetenderdocumentsreceivedarenotdulysignedbyauthorizedperson.

• Thevalidityoftenderislessthanwhatisstatedinthetender.

• Anyofthepageorpagesoftenderis/areremovedorreplaced.

• Anyconditionwhichaffectthecost.

• Ifitisjointventure.

Debarment/Blacklisting

Notwithstanding the above, the Employer may debar or blacklist any of the bidder(s) for

their misleading or false representations in the forms statements etc. for the period to be

decided by the Employer.

6.0 CostofBidding

The bidder shall bear all costs associated with the preparation and submission of his Bid.

Employer will in no case be responsible and liable for those costs.

The Bidder, at his own cost, responsibility and risk, is encouraged to visit, examine and

familiarize himself with the site of Works and its surroundings including source of earth,

water, road aggregates etc. and obtain all information that may be necessary

forpreparingthe Bid and entering into acontract for construction oftheWorks. Thecosts of

visiting the Site shall be at the Bidder's own expense.

8.0 Biddersshallnothaveanydisputeorclaimforanykindof compensationincaseof,

• If the quantity stipulated in the tender items varies or the scope of work changes and

thereby total amount of work increases / decreases up to any extent.

thereby total amount of work increases / decreases up to any extent.

• Iftheworksgetsdelayed/postponedforsomeadministrative/technicaldecision whatsoever.

• Iftheitemsstipulatedinthetendershallnotbeexecutedaspersitecondition/requirements. No

claim shall be entertained for the same.

• Noidlechargesshallbepaidtocontractorformachineryandmanpowerifremain idle and no

claim shall be entertained for the same.

B. BIDDING DOCUMENTS

9.0 ContentofBiddingDocuments

The set of bidding documents comprises the documents listed below and addendum

(ifany) issued.

1. Noticeinvitinge-Tender

2. SpecialconditionsofContract

3. InstructionstoBidders

4. QualificationInformation

5. ConditionsofContract

6. TechnicalSpecifications

8. BillofQuantities

• The bidder is expected to examine carefully all instructions, conditions of contract,

contract data, forms, terms, technical specifications, forms, Annexes in the biddocument.

Failure to comply with the requirements of bid documents shall be at the bidder’s own

risk. Bids which are not substantially responsive to the requirements of the bid

documents shall be rejected.

AmendmentofBiddingDocuments

Before the deadline for submission of bids, the Employer may modify the bidding

documents by issuing addendum.

Any addendum thus issued shall be part of the bidding documents and shall be placed on

website www.nprocure.com The prospective bidder shall refer to website to check any

addendum before 24 hours of opening of bids. AMC will not give any advertisement for

To give prospective bidders reasonable time in which to take an addendum into account

in preparing their bids, the Employer may, at his desecration, extend as necessary the

deadline for submission of bids.

Prospective bidders should attach the addendum made for the work & if fails to do so

than also the changes made through such addendum shall be applicable & bound to the

C PREPARATIONOFBIDS

11.0 LanguageoftheBid

AlldocumentsrelatingtothebidshallbeintheEnglishlanguageonly.

12.0 Documentscomprisingbid

Theebidsubmittedbythebiddershallbeinsinglebid.

Toqualifyforawardofthecontract,eachbiddermustsubmitthefollowingdocuments along

• RequiredRegistrationCertificate

• Otherrequesteddocuments

• Anyothermaterial/informationrequiredtobesubmittedinaccordancewith these

Instructions to Bidders (ITB)

Failuretosubmitthesecertificates/documentsshallmakethebidnon-responsive.

Above original documents in physical form in two copies, one marked as “original” and

othermarked as “Duplicate”, shall besubmitted in asealed envelopeby16:00 Hrs on the

date of physical submission of bid and addressed to the addressee given in the NIT duly

super scribed “Name of Work, Bid due date and time, Name and address of the bidder”

• The contract shall be for the whole works as described in Bill of Quantity based on the

percentage rate in the Bill of Quantities submitted by the bidder..

• All duties, taxes, (except GST) and other levies payable by the contractor under the

contract, or for any other cause shall be included in the rates, prices and total Bid Price

submitted bythe Bidder, exceptotherwisestatedintheBiddocument. Employer will not

compensate the bidder (contractor) for any change in duties, taxes and other levies

payable by the contractor under the contract and any other reasons.

• The percentage rate and bid price quoted by the bidder shall be fixed up to thecompletion

of Work and shall not be subject to adjustment on any account, except where expressly

specified, otherwise, in the contract.

14.0 CurrenciesofBidandPayment

The currency of bid and payment shall be in Indian Rupees. All payments shall be made

in Indian Rupees.

15.0 BidValidity

Bidsshallremainvalidfor120daysfromlastdateofsubmissionoftender.Abidvalid for a

shorter period shall be rejected by the Employer as non-responsive.

In exceptionalcircumstances,priortoexpiryofthebidvalidity(120days), theEmployer may

request that the bidders may extend the period of validity for a specified additional

period. The request and the bidders' responses shall be made in writing or by cable.

A biddermayrefusetherequestwithoutforfeitinghisbidsecurity. Abidderagreeingtothe

request will not berequired orpermitted to modifyhis bid, but will berequired to

extend the validity of his bid security for a period of the extension.

16.0 EarnestMoney/BidSecurity

The Bidder shall furnish, a Bid Security of the amount as shown in the Table of IFB as

part of his bid, in the form of Demand Draft / pay order / Bank Guarantee in favour

of Municipal Commissioner, Ahmedabad valid for 120 days.

TheissuingbranchofthebankguaranteeshallbeofAhmedabadCityonly.

AnybidnotaccompaniedbyanacceptableBidSecurityshallberejectedbythe Employer as

non-responsive.

Anybid havingbid securityforlesservalueand shortervalidityperiod shall betreated as non-

(a)Thebid securityoftheunsuccessful bidders, except for L1, L2 and L3 bidders will be

returned as promptly as possible.

(b) The bid securityof the successful bidder, along with second and third lowest tenders,

will be returned when the successful bidder has furnished the required security deposit

and signed the agreement.

The Bid Securityof the Successful Bidder will be discharged when the bidder has signed

the Agreement and furnished the required security deposit.

TheBidSecurityshallbeforfeited,

a) iftheBidderwithdrawstheBidafterBidopeningduringtheperiodofBidvalidity;

b) inthecaseofasuccessfulBidder,iftheBidderfailswithinthespecifiedtimelimitto

(i) signtheAgreement;or

(ii) Furnishtherequiredsecuritydeposit.

(iii) commencetheworkaftersigningtheagreementwithin15days

No interest shall bepaid bytheowneron anytender guarantee. Theissuing branch ofthe

bank guarantee shall be of Ahmedabad City only.

Bank Guarantee for Earnest Money Deposit should be executed on non-judicial Stamp

papers of requisite value in accordance with the stamp Act applicable to that

particular state of Indian Union, where executed.

The executing officers of the bank Guarantee for Earnest Money Bid Security shall

clearlyindicate in (block letters) his name, designation, Power of Attorney No. /

Signing Power No. etc.

Each page of the bank guarantee for Earnest Money Deposit shall be dulysigned/initialed

by the executing officers and the last page shall be signed in full, indicating the

particulars as aforesaid under the seal of the Bank.

D. SUBMISSIONOFBIDS

SealingandMarkingofBids

The bidder shall submit the Technical Bid only. The Bid shall be sealed in separate

envelopes and the three sealed envelopes shall be sealed in an outer envelope.The Bid

envelopes shall be marked as follows:-

• Complete Tender Documentwith all necessary qualification related documents (in two

Above two envelopes shall be kept in one envelope and it should be marked as

“Technical Bid” and sealed. This Outer envelope should mention the name of firm of

bidder, his address, contact details & name of the work.

Theinnerandouterenvelopes

a)ShallbeaddressedtotheEmployeratthefollowingaddress:

AssistantManager.-PWA,

2ndFloor,B–Wing,SardarPatelBhavan,

Danapith, Ahmedabad-380001.

c)Bearthefollowingidentification:

Indicatethenameandaddressofthebidder.

• If the outer envelope is not sealed and marked as above, the Employer will assume no

responsibility for the misplacement or premature opening of the bid.

DEADLINEFORSUBMISSIONOFTHEBID

Complete Bids (including Technical bid and necessary documents) must be received by

the Employer at the address specified in bid information not later than the date

indicated onthefacesheetofthedocument. Intheeventofthespecifieddateforthe

submissionof bids declared a holiday for the Employer, the Bids will be received up

to the appointed time on the next working day. The Bidder is further required to

submit Documents in Physical Form on or before the Bid Due Date and before the

time of submission as specified in NIT, at the following address:

AssistantManager-PWA,

2ndFloor,B–Wing,SardarPatelBhavan,

Danapith, Ahmedabad-380001.

AMC assumes no responsibility for inability of a bidder to submit bids through (n)

procure e-tenderingportalonaccountofdelayinsubmissionatbidder'send.Biddershall

ensure that they submit the bid well before the "Due Date & Time of Bid-

Submission". AMC shall not be responsible if bidder is not ableto submit the bid on

account of failure in network/internet connection or any other technical reason.

The Employer may extend the deadline for submission of bids by issuing an amendment

in accordance with respective Clause, in which case all rights and obligations of the

Employer and the bidders previously subject to the original deadline will then be subject

to the new deadline.

All bidders are requested to see the website of (n) procure for amendment / corrigendum

Any Bid received by the Employer after the deadline prescribed in NIT will be rejected

and returned unopened to the bidder.

Any Bid received by the Employer after the deadline prescribed in NIT will be returned

unopened to the bidder.

20.0 NOTIFICATIONOFAWARD&SIGNINGOFAGREEMENT

The Bidder whose Bid has been accepted will be notified of the award by the Employer

priorto expiration oftheBid validityperiod bywriting, facsimileore-mail confirmed by

registered letter. This letter (hereinafter and in the Conditions of Contract called the

“Letter of Acceptance” will state the sum that the Employerwill pay the Contractor in

consideration of the execution, completion, and maintenance of the Works by the

Contractor as prescribed by the Contract (hereinafter and in the Contract called the

“Contract Price”).

The notification of award will constitute the formation of the Contract, subject only tothe

furnishing of a Security Deposit in accordance with the provisions of Clause.

The agreement will incorporate all correspondences between the Employer and the

Successful Bidder. It will be signed by the Employer and the Successful Bidder.

21.0 SIGNINGOFCONTRACTAGREEMENT

The Employer and the successful bidder shall enter into a Contract Agreement within

days after the successful bidder (hereinafter called the Contractor) receives the Letter of

Acceptance,unlesstheyagreeotherwise,subjectto furnishingthesecuritydepositbefore

signing the Agreement with the Employer.

Upon issue of ‘Letter of Acceptance’ to the successful Bidder, the Employer will

promptlynotifytheotherBidders thattheirBidshavebeenunsuccessful andreleasetheir

Earnest Money Deposit / Bid Security.

22.0 SECURITYDEPOSIT

SecurityDepositshallbeat5%ofthecontractvalueintheformofbankGuarantee

/DD (Bank Guarantee issued from Ahmedabad Branch only as per para A.4.24).The

securitydepositshall bepayable in15days fromdateof receiptofLOIfailingwhichinterest will be

charged by AMC.

The security deposit shall be in the form of a Bank Guarantee in the name of the

Employer, from Ahmedabad branch of any Banks mentioned in the clause no. 16.2 of

these tender documents.

This security deposit shall be released only after the clearance of final bill including pre

Interest shall be deducted from contractor in case of late submission of security depositor

late renewal of bank guarantee for the number of days delayed for submission or

discontinuity of the bank guarantee.

Bank Guarantee to be submitted in the prescribed format enclosed and shall be same

verbatim as per the format. Bank Guarantee shall be submitted on right value of

stamp paper and for correct value of contract.

Failure of the Successful Bidder to comply with the requirements of Sub-Clause

shall constitute sufficient grounds for cancellation of the award and forfeiture of the

In case of any contract amendment during execution of the contract enhancing value of

the contract the BG value shall be enhanced accordingly. Validity of BG shall be

commercial terms and conditions of the tender.

All compensation or other sums of money payable by the Contractor to the Employer

undertheterms ofthis Contract oranyother contract oron anyotheraccount whatsoever

may be deducted from Security Deposit. Also in the event of the Contractor's

Security Deposit being reduced by reasons of such deductions, as aforesaid, the

Contractor shall, within 14 days of receipt of notice of demand from the Engineer-in-

Charge, make good the deficit in Security Deposit.

Should there arise any occasion under the Contract due to which the periods of validities

of Bank Guarantees as may have been furnished by the Contractor from time to time,

are required to be extended/renewed, the Contractor shall get the validity periods of

such guarantees extended/renewed, and furnish these to the Engineer-in- Charge one

month before the expiry date of the aforesaid Guarantees originally furnished failing

which the existing Bank Guarantees shall be invoked bythe Engineer – in – charge.

Also in case of any deficit in securities on any account as might occur or is noticed,

the Contractor shall forthwith recoup/replace the same with acceptable Security

The Bank Guarantee shall be extended within the expiry dates wherever activities as per

contract are not completed in all respects.

TheSecurityDepositlessanyamountdueshall,ondemand,bereturnedto thecontractor after

days of completion date / Final Bill paid date which ever is later. No interest on the

amount of Security Deposit shall be paid to the Contractor at the time of release of

Security Deposit as stated above.

The successful bidder to whom ‘LOI’ has been issued shall enter into an agreement at

Employer’s office within 15 days of.

23.0 AdvancePaymentandSecurity

TheEmployerwillnotprovideanyadvancepayment.

24.0 DisputeReviewExpert

In caseofall thedisputes, decision ofthe Municipal Commissioner, Ahmedabad shall be

final and binding to the bidder.

25.0 LITIGATIONHISTORY

The applicant should provide accurate information on litigation and/or arbitration

resulting from Contractors completed or under execution by him over last five years. If

the details of Litigation History are hidden by the Bidder and later on it comes to the

knowledge of the Employer, the Bidder shall be disqualified for the proposed work and

other appropriate actions shall be taken against the bidder.

DETAILSOFCOMPLETED/ONGOINGLITIGATION/ ARBITRATION

Employer Valueofthe Reasons/Details for Remarks

Year Nameof Project(Rs.) litigation/arbitration showing

Project PresentStatus

 Thebiddershallfurnishseparatetableforindividualproject.

 The above information shall be supported with necessary documents otherwise the same

shall be treat as null and void.

 A consistent history of arbitration awards? Judgments against the applicants or any

partner of a joint venture may result in disqualification for proposed work.

 If the details of litigation History is hidden by the applicant and later on it comes to

knowledge of the employer the bidder shall be disqualified for the proposed work and

other appropriate actions shall be taken against the bidder.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad MunicipalCorporation

GENERALCONDITIONSOFCONTRACT

LiquidatedDamages

If the Contractor fails to complete the works within the original or extended time limit,

the Contractor shall pay penalty of 10% of amount of actual remaining work. Theamount

of work for which the scope of contractor is reduced shall not be considered for the

calculation of Liquidated Damages.

Conditions mentioned in the AMC Finance Department Circular AMC no. 18 Date:

23/05/2017 and all latest Circulars shall be applicable.

2.0RetentionMoney

2 % amount of each Running Bill shall be deducted as a Retention Money. Such

retentionmoneyshallbereleasedinthefinalbill ofthesaidwork.AMCreservesrightto deduct

any amount to compensate the poor performance of the contractor i.e. poorquality or

abandoned / incomplete work.

Except where expressly specified in the Contract, the Contractor shall not subcontract

any portion of Work without the approval of the Employer’s Representative. Any

subcontracting shall not relieve the Contractor from any contractual obligations or

responsibility under the Contract.

The Contractor shall not be required to obtain consent for a subcontract for which the

name of the subcontractor and scope of works activities to be performed by him is

already stated in the contract or supply of material or engagement of labour.

The Contractor shall employ the key personnel named in the Schedule of Key Personnel

as referred to in the Bid document to carry out the functions stated in the Schedule or

other personnel approved by the Engineer. The Engineer will approve any proposed

replacement of key personnel only if their qualifications, abilities, and relevant

experience are substantially equal to or better than those of the personnel listed in the

IftheEngineeraskstheContractortoremoveaperson,withoutassigningreasonsthereof, for his

misconduct or inadequacy of technical skills and experience, who is a member of

theContractor’sstafforhisworkforce,theContractorshallensurethatthepersonleaves the

Site within seven days and has no further connection with the work in the Contract.

No residential accommodation is allowed at the site of work. The labour huts shall not be

erected on the site of work and contractor shall make his own arrangements to

provide such accommodations as per the rules of the local bodies. He shall make his

own arrangements for housing, stores, field office etc. He shall submit a site layout

plan indicating the location of various site facilities to be created by him at his cost

for the execution of work. The Owner shall in no way be responsible for any delay on

this account and no claim on this account whatsoever shall be entertained. All

Basicamenities shall be provided by the Contractor to Labours as per the prevailing

The Contractor shall have full regard throughout execution, completion and defects

liability period to following safety aspects and shall take all necessary steps to

ensurethat danger to safety is avoided all the time in respect of,

Safetyoftheworks

• Safety of the Contractor’s employees and all the persons directly or indirectly

engaged by him for the works

• Safety of all the employees including persons working on other contracts of

Employer at the same site of the Employer and Engineers employees engaged at

• Anyauthorizedthirdpartypersonsonthesite.

• Contractor’splantandequipment

TheContractorshallprovideandmaintainathiscostsalllights,guards,fencing,warning signs,

barricading, and cones; when and where necessary, or required by Engineer in

Chargeor by any duly constituted authority for the protection of the works or for the

safety and convenience of the public or other.

The Contractor shall take all reasonable steps to protect the environment on and off the

site and avoid damage or nuisance to persons or propertyof the public and others

arising as a consequence of his method of operation.

The Contractor shall maintain in good condition all work throughout execution,

completion, and defects liability period. The contractor shall be responsible for and to

make good all injuries, damages and repairs, rendered necessary by fire, rain, traffic,

floods or other causes.

All the scaffolding work, wherever required for the execution of work, shall be provided

by the contractor. Nothing extra shall be payable on this account. It shall be provided

strictly with double scaffolding system with all the accessories etc. with adjustable

suitable working platforms to access the areas, with ease for working and inspection.

It shall be designed to take all incidental loads. It should cater to the safety features

for workmen. It shall be ensured that no damage is caused to any structure due

All temporary warning/ caution boards display shall be provided and displayed during

day as well as night time by the contractor, wherever required and as directed by the

Arrangement of temporary water and electricity and telephone connection required, by

him, shall be made by the Contractor at his own cost and also necessary permissions

directly from relevant Owners shall be obtained by him under intimation to the

Owner. Also all initial and running charges and security deposit, if any in this regard

shall be borne by him. The Contractor shall abide by all the rules/ bye laws

applicable in this regard and he shall be solely responsible for any penalty on account

of violation of anyof the rules and byelaws in this regard.

In any case if any fatal accident (major or minor) occurs due to poor safety precautions,

the same shall be completely contractor’s responsibility. All the losses due to such

accidents and expenses of legal matters shall be borne by contractor.

TheContractorshall beresponsibleformaintenanceand watch and ward ofthecomplete

installation and shall also be responsible for any pilferage, theft, damage, penalty etc.

in this regard. The Contractor shall indemnify the Owner against any claim arising

out of pilferage / theft, damage, penalty etc. whatsoever on this account.

The Contractor shall depute Site Engineer & skilled workers as required for the work.

Necessary protective and safety equipments shall be provided to them by the

Contractor at his own cost and used at site.

6.0 Contractortokeepsiteclean:

During the execution of the work, the Contractor shall keep the site clean. All wreckage

rubbish, excess materials, temporaryworks no longer required will be removed from site

7.0 Clearanceofsiteoncompletion:

The Contractor shall clear away and remove all Contractors equipment, surplusmaterials,

rubbish, temporary works of every kind.

8.0BillofQuantities

a. The schedule-B shall contain Memorandum showing items for the construction,

installation, testing, and commissioning work to be done by the Contractor.

b. The quantities stated in the schedule B are estimated quantities. The Contractor shall

be paid only quantities calculated after taking measurements of executed work. The

rate stated in the schedule B for each item of work shall apply. The works shall be

measured bythe Contractor jointlywith the authorized representative of the Engineer

and all particulars required bythe representative of the Engineer shall be supplied by

the contractor.

c. The work shall be measured net. No allowance for general or local custom, working

space etc. is to be made.

The Engineer in Charge shall have power to make any variation of form, quality or

quantity of the works or any part thereof that may, in his opinion, be necessary and for

that purpose, or if for any other reason it shall, in his opinion, be appropriate, he shall

have the authority to instruct the Contractor to do and the Contractor shall do any of the

 Increaseordecreasethequantityofanyworkuptoanyextentincludedinthe contract,

 Omitanysuchwork,

 Changethecharacterorqualityorkindofanysuchwork,

 ExecuteadditionalworkofanykindnecessaryforthecompletionoftheWorksor

 Changeanyspecifiedsequenceortimingofconstructionofanypartofwork.

No such variation shall in any way vitiate or invalidate the contract, but the effects, if

any, of all such variations shall be valued in accordance with the following sub clauses.

Provided that where the issue of an instruction tovarythe Works is necessitated bysome

default or breach of contract by contractor or for which he is responsible, any additional

cost attributable to such default shall be borne by the Contractor.

The Contractor shall not make any such variation without an instruction of the Engineer.

No instruction is required for quantities varying from those provided for the items in the

contract schedule B.

ThebasisforthevaluationofvariationsforadditiontotheContractPriceshallbeas follows in the

same order of priority.

a) Variationsinthequantitiesofworkinscheduleofquantitiesshallnotvitiatethe contract.

b) Thecontractorshallbeboundtoexecuteextraitemsofworkasdirectedbythe Engineer-in-

c) Contract unit rates forindividual items shall applyto varied quantities where there is a

quantity variation.

d) Thepricevariationsonextraitemwillnotbegiven.

e) Incaseofothernontenderitemsfollowingprocedureshallapply.

If any extra item crops up during the progress of work the same shall be carried out by

the Contractor and he shall be paid at the rate fixed by Employer which shall be fixed as

lowest of the rates derived by rate analysis based on the following three methods. , the

priority of the documents forming the Contract shall be as follows:

(i) If the extra item is included in the S.O.R. of Road& Building Department, Year

2013-14, the rate of extra item shall be that rate and premium (above or below)

quoted by contractor.

(ii) RateanalysisbasedonprevailingGovt.ofGujarat’sSORrates.

(iii) Rateanalysisbasedoncurrentmarketrates.Thisshallbebasedon

 The material costs, the labour costs, the cost of use of all plant, machinery and

equipment, the cost of all temporary and incidental works, the overheads and the

Contractors profit.

 Theoverheads shall betaken at 5 %ofthesum of material costs, thelabour costs, the

cost of use of all plant, machinery, and equipment, the cost of all temporary and

incidental works.

In case of the rate is to be derived from prevailing market rate, the Contractors profitshall

be taken at 10 % of the final rate derived.

In the event of disagreement, the Engineer in Charge shall fix such rates and prices asare,

in his opinion appropriate and shall notify the Contractor accordingly with a copy to

TheEngineer shall determineprovisional rates and prices to enableon account payments

to be included in the Interim Payment Certificates, until rates and prices are agreed as

final by the Employer, the Contractor, and the Engineer.

The Contractor shall not be entitled to additional payment for costs, which could have

been avoided by giving early warning.

Payments shall be adjusted for deductions for advance payments, retention, other

recoveries in terms of the contract and taxes at source, as applicable under the law.

The Employer shall pay the Contractor the amounts certified by the Engineer.

If anamountcertifiedisincreasedinalaterdatecertificateduetocorrectionsinprevious

certificates or as a result of an award from disputes review experts, Contractor shall

be paid such amount only. The Contractor shall not be paid any interest upon such

delayed payment.

Items of the work for which no rate or price has been entered in will not be paid for by

the Employer and shall be deemed covered by other rates and prices in the Contract.

AllpaymentsshallbemadeinAhmedabad.

12 Taxesandduties

Theratesareinclusiveofalltaxes,insurance,laboroverheadcharges,contractor’sprofit,

royalties etc exceptGST.The Contractor will have to payall such taxesand duties

for the performance of this Contract. The Employer will deduct from the Contractor’s

monthly and other payments all taxes and duties, which he is bound to recover in

accordance with the applicable law.

The Contractor shall keep himself fully informed of all acts and laws of the Central &

State and local Governing bodies, all orders, decrees of bodies, tribunals having any

jurisdiction or authority which in any manner affect those engaged or employed, and

anything related to carrying out the work. All the bye-laws lay down by

AMC/AUDA and any other local bodies while executing the work shall be adhered

to. All taxes of local bodies shall be borne by the contractor. The Contractor shall

arrange to give all notices required by any authority and to pay to such authority all

the fees that may have to be paid for the material, plants, equipments etc. The

Contractor shall also adhere to all traffic restrictions notified by the local authorities.

He shall protect and indemnify the Owner and its officials & employees against any

claim or liability arising out of violations of any such laws, ordinances, orders,

decree, whether by himself or by his employees or his authorized representatives.

Nothing extra shall be payable on these accounts.

13.0 LabourWelfareCess

As per circular No. GHR/2005/04/CWA/2004/841/M-3 dt. 3/1/05 and G.R. No.

CWA/2004-1831-M(3) dt. 9/12/05 issued by G.O.G. (non-refundable) shall be deducted

from every bills which shall be deposited to Govt. Labour Department for Labourwelfare

14.0 Currencies

AllpaymentsshallbemadeinIndianRupees.

15.0 AdvancePayment

NoAdvancePaymentshallbemade.

16.0 CostofRepairs

Loss or damage to the Works or Materials to be incorporated in the Works between the

Start Date and the end of the Defects Correction periods shall be remedied by the

Contractor at the Contractor's cost if the loss or damage arises from the Contractor's acts

B. FINISHINGTHECONTRACT

17.0 Completion

The Contractor shall request the Engineer to issue a Certificate of Completion of the

Works and the Engineer will do so upon deciding that the Work is completed.

18.0 Termination

TheEmployershallbeentitledtoterminatethecontractifthecontractor:

(a) Failstocarryoutanyobligationunderthecontract.

(b) Withoutreasonableexcusefails–

1. To commence the works on site within the period stated in the Appendix to Bid

after receipt by him of a Notice to this effect from the Engineer/Employer after

signing the agreement or

2. To proceed with the works, or any section thereof, within 28 days after received

3. Has failed to comply with a notice issued or an instruction issued within 28days

after having received.

4. Abandons the works or otherwise plainly demonstrates the intention not to

continue performance of his obligation under the contract.

5. Sub-contracts the works or assigns the contract without the specific prior written

permission of the engineer.

6. Has failed to furnish the required securities or extension thereof in terms of the

7. Becomes bankrupt or insolvent, goes into liquidation, has a receiving or

administration order made against him, compounds with his creditors, or carries

on business under receive, trustee or manager for the benefit of his creditors, or if

anyactisdoneoreventoccurswhich(underapplicableLaws)hasasimilareffect to any

of these acts of event.

In any of these events or circumstances, the Employer may, upon giving 14 days noticeto

the contractor, terminate the contract and expel the contractor from the site.

However, in the case of sub-paragraphs (h), the Employer may be notice terminate

the contract immediately.

The Employer’s decision to terminate the contract shall not prejudice any other rights of

the Employer, under the contract or otherwise.

After termination, the Employer may complete the works and/or arrange for any other

entities to do so. The Employer and these entities may then use any goods,

contractor’s documents and other design documents made by or on behalf of the

The Employer or the Contractor may terminate the Contract if the other party causes a

fundamental breach of the Contract.

FundamentalbreachesofContractinclude,butshallnotbelimitedtothefollowing:

(a) theContractorstopsworkfor14dayswhennostoppageofworkisshownonthe current

Program and the stoppage has not been authorized by the Engineer;

(b) the Employeror the Contractor is made bankrupt or goes into liquidation other than

for a reconstruction or amalgamation;

(c) Thecontractorfailstofulfillrequirements;

(d) the Engineer gives Notice that failure to correct a particular Defect is a fundamental

breach of Contract and the Contractor fails to correct it within a reasonable period of

time determined by the Engineer;

(e) theContractordoesnotmaintainasecuritywhichisrequired;

(f) the Contractor has delayed the completion of works bythe number of days for which

the maximum amount of liquidated damages becomes payable as defined in the

(g) if the Contractor, in the judgment of the Employerhas engaged in corrupt or

fraudulent practices in competing for or in the executing the Contract.

(h) For the purpose of this paragraph: “corrupt practice” means the offering, giving,

receiving or soliciting of anything of value to influence the action of a public official

in the procurement process or in contract execution. “Fraudulent practice” means a

misrepresentation of facts in order to influence a procurement process or the

execution of a contract to the detriment of the Borrower, and includes collusive

practice among Bidders (prior to or after bid submission) designed to establish bid

prices at artificial non-competitive levels and to deprive the Borrower of the benefits

of free and open competition.”

When either partyto the Contract gives notice of a breach of contract to the Engineer for

a cause other than those listed above, the Engineer shall decide whether the breach is

fundamental or not.

Notwithstandingtheabove,theEmployermayterminatetheContractforconvenience.

If the Contract is terminated the Contractor shall stop work immediately, make the Site

safeand secureand leave theSiteas soon as reasonablypossibleand handoverthesiteto

the Employer including all materials and plant and equipment existing there upon.

19.0 Contractor'sownresponsibility

Thecontractoris to set out and level theworks and will beresponsiblefortheaccuracyof the

same. He shall also be responsible for the correctness of the positions, levels, dimensions,

and alignment ofall parts ofthestructures as perinstructions given to him. If at any time

any error shall appear during the progress of any part of the work, the contractor shall at

his own expense rectify such error if called upon to the satisfaction of the Engineer in

20.0 Overpayment&Underpayment

WheneveranyclaimFifthspaymentofasumto theMunicipalCorporationarisesoutof or under

this Contract against the contractor the same may be deducted by the Municipal

Corporation from any sum then due or which at any time thereafter may become due

to the contractor under this contract and failing that under anyother contract with the

Municipal Corporation or from any sum due to the contractor with the Municipal

Corporation (which may be available with MunicipalCorporation), or from his

retention money, or he shall pay the claim on demand. The Municipal Corporation

reserves theright to carry out post payment audit and technical examination of the

final bill including all supporting vouchers, abstracts, etc.

The Municipal Corporation further reserves the right to enforce recovery of any over

payment when detected notwithstanding the fact that the amount of the final bill may

be included by the Contractor.

If as a result of such audit and technical examination any over payment isdiscovered in

respect of any work done by the Contractor or alleged to have beendone by him under

the contract, it shall be recovered by the MunicipalCorporation from the contractor by

way of all the means prescribed above or ifany under payment is discovered by the

Municipal Corporation, any amount due to the contractor under this contract or under

payment may be adjusted against any amount then due or which may at any time

thereafter become due before payment is made to the contractor from him to the

Municipal Corporation on any other contract account whatsoever.

21.0 Materialsobtainfromdismantling

If the contractor, in the course of execution of work is called upon to dismantle any part

for reasons other than on account of bad or imperfect work, the materials obtained from

dismantling will be the property of the A.M.C. and will be disposed of as per instruction

of Engineer-in-charge in the best interest of the A.M.C.

22.0 DisputetobereferredtoArbitrator

Thedisputes relatingto this contract, so faras theyrelateto anyofthefollowingmatters,

whether such disputes arise during the progress of the work or after the completion or

abandonment thereof, shall be referred an independent Arbitrator appointed by AMC as

far possible in consultation with the agency if it is necessary and such disputes shall be

settled in accordance with the arbitration and conciliation Act.1996.

(i) The rates of payment under clause 5 for any tools, materials and stores, in orupon

the works of the site thereof or belonging to the contractor or procured by him

and intended to be used for execution of the work or any part thereof possession

of which may have been taken by the Engineer-in-charge under the said clause –

(ii) The reduction in rates made by the Engineer-in-charge under clause 9 from the

itemsofworks notacceptedas completedfullyin accordancewiththe sanctioned

specifications.

(iii) The rate of part of payment for any class of work which is included in the

additional or altered work carried out by the contractor in accordance with the

instructions of the Engineer-in-charge under clause 14 and the rates for which is

to be determined under the said clause

(iv) The rates of payment for materials already purchased or agreed to be purchased

by the contractor before receipt of notice given by the Engineer-in-charge under

clause15and/or amountofcompensationpayable to thecontractorunderthesaid

clause for loss in respect of such materials.

(v) The amount of compensation which the contractor shall be liable to pay under

clause 17 in the event of this failure to rectify, remove or reconstruct the work

within the period specified in the written intimation or the amount of expenses

incurred by the Engineer-in-charge under the said clause17 in rectifying,

removing or re-executing the work or in removing and replacing the materials or

articles complained of.

(vi) The reduction of rates as maybe fixed bythe Engineer-in-charge under clause

for the inferior work or materials as accepted or made use of.

(vii) The amount of compensation payable by the contractor for damages as estimates

and assessed under clause

(viii) The amount payable to the contractor for the work carried out under clause 33 in

accordancewiththeinstructionsandtherequirementoftheEngineer-in-chargein case

where there are no specifications.

(ix) The awards declared bythe arbitrator shall be speaking award giving reasons and

calculationsto everyitemofclaims.Thedecisionwillhavetobeimplementedby all the

(x) In case of dispute leadingto the contractor or Ahmedabad Municipal Corporation

approaching on Court of Law. It shall be within the jurisdiction where the site of

work is situated.

Thereferencetoarbitrationproceedingunderthisclauseshallnot:

i) EntitlethecontractortostoptheAffecttherightoftheEngineer-in-chargeunderclause 5 to

take possession of all or any tools, plants, materials and stores in or upon theworks of

sitethereof belongingto the contractor orprocured byhim and intended to be used for the

execution of the work or any part thereof.

ii) Preclude the Engineer-in-charge from utilizing the materials purchased by the

contractor in any work or from removing such materials to other places, during the

period the work is stopped or suspended in pursuance, of notice given to the contractor

iii) Progress of the work or the carrying out the additional or altered work in

accordancewith the provisions of clause 14 or as the case may be, of clause

23.0 DrawingsandPhotographsoftheWorks

The contractor shall do photography/ videography of the site as and when asked by

AMC. No separate payment will be made to the contractor for this. . The contractor

shall have to submit the same in hard copy as well as soft copy as and when

demanded by the AMC.

No photograph of the works or any part thereof or plant employed thereon, except those

permitted under clause 59.1, shall be taken, or permitted to be taken bythe Contractor

or by any of his employees or any employees of his sub-Contractors without the prior

approval of the Engineer in writing. No photographs/ videography shall be published

or otherwise circulated without the approval of the Engineer in writing.

Sealand Signature of the Bidder AdditionalCityEngineer(West Zone)

Date: Ahmedabad Municipal Corporation

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8 f: Nh<e xuLzh MJefthJtbtk ytJNu lne.

8 z: xuLzh MJefthJw , hœ fhJw, ftulu ytvJw ylu fgt CtJ&e ytvJw <u ykdu Bgwrl. frb§h©eltu rlKog ytFhe hnuNu. ftuR fthKmh stu ftuLx[tfxhl

ftb l ytve Nftg <tu <u ykkdu ftuLx[tfxh ftuRvK «fthltu lwfNtle fu J¤<hltu nff œtJtu fhe NfNu lrn fu ftgœtfeg ftgoJtne yt ykk du &R NfN

lrn. xuLzh bkswh &gtltu y&o ftb ytve s œuJtlwk Au <uJtu &R NfNu lrn.

9: rJmkkdr< ylu rnmtc stud:

nt& ^hJtlt ftbtule ctc< œNtoJ<t CtJ vºtf btklt sÚ&t ylu hfble ftuRvK Cwjawf leault rlgbtu ylwmth mhCh fhJtbtkk ytJNu.

1) xuLzh Chlthu œhlt Ftltbtkk sKtJuj Nçœtu ylu ytkkfzt Jåau ftuR ymkkdr<lt fumbtkk Nçœtubtkk sKtJuj hfb btLg htFJtbtkk ytJNu.

2) yufb œh ylu sÚ&tlt Ftuxt dwKtfthlt fthKu ftble ctc<tu œNtoJ<e CtJ vºtf lt Ftltbtkk&e hfbbtkk Cwj sKtg <tu yufb œh btLg

htFJtbkkt ytJNu ylu œhlt yt^thu dwKtfth mw^thJtbkkt ytJNu.

3) yufblt Ftltbtkk&e <ubs ytd¤ Fuka<t mhJt¤tle <btb Cwjtu mw^thJtbkkt ytJNu.

4) ctc<tu y&Jt mhJt¤t mtbu vwhu ytkkfzu fhuj ftuR vK ctc< ægtlbtkk juJtbtkk ytJNu lrn.

10y: ftbltu «tud{um mbg bgtoœt bwsc fhJtltu hnuNu.

xuLzhbtk ftuLx[t¾xh îtht Chujt CtJ <btb «fthlt su <u «J<o<t mhfthe xuût mrn<lt CtJ dKJtbtk ytJNu. ylu <ubtk atjw ftb

œhBgtl su ftuR VuhVth &Nu <ultu J^thtu awfJJtbtk ytJNu lrnk.

10c: mûtb m•tt îtht xuLzhle bkswheltu XhtJ vtzgt ctœ ( LOI) ytvJtbtk ytJNu ðgth ctœ rœl - 15 btk rm¾gtuhexe zevtuÍex sbt fhtJJtle

hnuNu. rm¾gtuhexe zevtuÍex btuze ChJtlt rfMmtbtk Bgwrl.ftuvtuohuNlbtk «J<obtl rlgb ylwmth ftgoJtne fhJtbtk ytJNu.

10f: bkswh &guj xuLzhle mbgbgtoœtbtk ftbdehe vqKo l &tg <tu mbgbgtoœt ctœlt FhuFh ctfe ftble hfblt 10% juFu (jefJezexe zubuSm

vulÕxe Jmwj fhJtbtk ytJNu.

xuLzh Chlthu yu Jt< mbS juJtle hnuNu fu <uKu xtkkfujt œh vwhtk &gujt ftb btxult Au ylu <ubtk bswhe, vtjF, ÃjtLx, œuFhuF,mhJem

ftbdehe, Jes¤e, htugÕxe ylu ytufx[tug Jduhu ykkNu <btb Faoltu <&t sYh sKtg <tu ylu ðgthu ht<vt¤elt ftblu juJt c^t J^thtlt

Faoltu mbtJuN &Nu ylu xtkkfujt CtJ fu œh fh<t J^thtle ftuR awfJKe ykkdult <ublt ftuR œtJt ægtlbtkk juJtNu lnekk ylu xuLzh Chlth Ftuxe

hswyt<lu fthKu y&Jt ftuR Ôgrf<yu(vAe<u ctkk^ftb rJCtdltu fboathe ntug fu l ntug)<ublu ytvuje btne<elu yt^thu vtA¤&e ftuR œtJt

hsw fhJt nfœth hnuNu lnekk. <ublw xuLzh ChJt <&t <ubtkk swœt swœt CtJ ylu œh ChJt btxu sYhe yuJe <btb btne<e vtu<tlt vûtu l bu¤Je

NfJtlu fthKu vtu<u xuLzh hsw fhJtlu je^u y&Jt <ubtkk&e WCt &<t ftuR stuFb fu sJtcœthebtkk&e Axfe NfNu lnekk. mœh ftbbtk ftuR vK

ò<lt ctk^ftblt bxehegj Wvh CtJ J^thtu ytvJtbtk ytJNu lrnk.

11 c: ftuLx[tfxhtulu vubuLx / hlekd cej Bgwrl. frb§h©elt su <u «J<obtl rlgb bwsc fhJtbt ytJNu.<&t Bgwrl. frb§h©e/mexe Rsluh©e

lt su <u JF<ltk mh¾gwjh «btKu ftbdehe/ybj fhJt ckDlf<ot hnuNu.

11 f: ftuLx[t¾xhlt œhuf hlekd cejbtk&e ftuLx[t¾xhlu awfJJtle &<e fwj hfb Wvh (xuLzh bwsclwk vubuLx +

yu¾x[t ytRxb) 2 % juFu hexulNl ble ftvJtbtk ytJNu su VtRlj cejbtk vh< ytvJtbtk ytJNu.

11 z: htsg / fuL÷ mhfth©elt JF<tuJF<lt ftgœt bwsc su ftuR hfble fvt< fhJtle &Nu <u bwsc ftuLx[[tfxhlt cejbtkk&e fvt< fhJtbt

12: yu)fhth mkkc^e œM<tJustu fhthlt ydðglt Ctd dKtNu ylu <u mD¤t mne<lt fhth mbd{ ftblu jtdw vzNu.

ce)xuLzhbtk œNtoJuj ftb mkkck^e œM<tJusbtkk œNtoJuj rJd<btkk rJmkkd<<tlt rfMmtbtk leau œNtoJuj ¢btlwmth

œM<tJusbtkk œNtoJuj rJd< d{tng htFJtbkkt ytJNu.

yu) yufb ylu fœ

2) xuLzh Vtubolwk CtJvºtf

z[tuRkdbtk fœ, ytfth, ytkkfzt fœta Ftuxt ntug <tu btvujtkk fœ, ytfthlu ylwmhJwk.

2) xuLzh Vtubole ylwmwra-ce

Cwj Chujt fu Ftuxt JKollt rfMmtbtkk yt mkkck^e Wvhefûttyu rJmkkd<<t ykdule ltuk^ bwfe

yuze.me.R/zu.Bgwrl.frb./Bgwrl.frb.le bkswhe bu¤JJtbtk ytJNu ylu <u bwsc fhJtbkt ytJuj rlKog ykkr<b dKJtbkkt ytJNu.

13 : xuLzhhu z[tuRkd fu MvuNeVefuNlbtkk hnuje ftuR ûtr< fu Ftbeltu duhjtC juJtle fturNN l fhJe ylu Rsluh Rl-atsuo Ãjtl <&t

MvuNeVefuNlle ûtr<ytu mw^thJe <&t <ulwk mtawk y&oDxl fhtJJwk.

14 : yt Wvhtk< y.Bgw. ftuvtuo. lt slhj ftuLx[tfx fLzeNl vK btLg htFJle hnuNu.

15 : yufe JF<u yuf fh<t J^w søgtytuyu ftb NY fhJtltu Jfo ytuzoh b¤u <tu ftb yuf mt&u s c^u NY fhJw vzNu.

16 :atjw ftbu mrJom jtRllu lwfNtl l &tg <u he<u ftb fhJtlw hnuNu. stu ftuR mrJom jtRllu lwfNtl &Nu <tu <ule mkvwKo sJtcœthe

(òlbtj) ftuLx[tfxhle vtu<tle hnuNu. mtRx Wvh ftb œhBgtl bswhtu fu sl<tlt ftuR btKmlt òlbtj lu lwfNtl &tg <ule sJtcœthe

ftuLx[tfxhle hnuNu.vtujem Vhegtœ &tg <tu <ule sJtcœthe vK ftuLxtfxhle hnuNu. CuFz Dme l vzu <ule sJtcœthe vK vtujem Vhegtœbt

ftuLx[tfxhle hnuNu.CuFz Dme l vzu <u btxu mjtb<elt vdjt (suJt fu œtuhzwk ctk^e bswh Ftztbtkk W<thJt, mtuhekkd ylu Mx[[xekkd fhJt rJduhu)

je^t Jdh bsqhlu Ftztbtkk W<thNu <tu ftuLx[[tfxh s vtujem Vhegtœbt sJtcœth hnuNu ylu Bgwrl.ftuvtuohuNlltu ftuRvK MxtV ytlt btxu

sJtcœth hnuNu lrn.ytxjwk mbSlu s xuLzh ChJwk. Bswhtultu rJbtu vK W<thJtu.

17 : ftuLx[tfxh îtht xuLzhbt œNtoJuj MveNeVefuNl bwsc MxtLzzo bxehegÕm MvuNeVefuNl bwsc jtJJtlt hnuNu.<&t sYh sKtg <tu xuMxekd

fhtJJtlwk hnuNu.<&t yt ykdu «Joðbtl Bgwrl.ftuvtuohuNlt rlgb bwsc bxehegÕm fu ceò xuMxed hevtuxo ftuLx[tfxhu vtu<tlt Fauo ftuvtuohuNl

sKtJu <u søgtyu fhtJJtlt hnuNu. bxehegÕm jtJJt fu jR sJtltu mkvwKo Fao ftuLx[tfxhu CtudJJtltu hnuNu.

18 : M&¤ vrhrM&r< / sYhegt< bwsc ftb fhtJ<t xuLzhlt ytRxblt sÚ&tbtk J^ ^x &tg <tu rlgb ylwmth <u ykdu ftb fhJt ftuLx[tfxh

19: mtRx vh jtJJtbtk ytJuj btj mtbtl hesufx fhJtbt ytJu <tu <whk< rœl 1btk vh< jR sJtltu hnuNu.

yLg&t <ule lwfNtlle sJtcœthe ftuLx[tfxhle hnuNu.

20 :ftuLx[tfxhlu su ftuLx[tfx ytvJtbtk ytJu Au.<ubt mhfth©elt «Joðbtl rlgb bwsc ve.yuV/juch

yufx/vtujemlt ftgœtlw vtjl fhJtlwk hnuNu <&t yt ykdu Bgwrl.ftuvtuohuNl îtht su btne<e btkdJtbtk ytJu <u ytvJtle hnuNu.

21: ftuRvK ftgœtfeg jexeduNl ybœtJtœ Nnuhle ftuxobt hnuNu.

22: btj su <u Mxtumo Wvh y&Jt mtRx Wvh jtuftulu lz<h l &tg <u he<u mwalt bwsc W<thJtltu <ubs dtuXJJtltu hnuNu.

23: ftuR vK mhfthe fhJuht ChJtle <btb sJtcœthe ftuLx[tfxhle hnuNu.

24: yt xuLzhbtkk stu ftuR ytRxb hne dR ntug <tu <u y&tJ M&¤ M&e<e bwsc xuLzhbtk mbtJuN l ntug <uJe J^thtle ftbdehe fhJtle &tg <uJt

rfMmbtk Bgwrl.ftuvtuohuNlt «Joðbtl rlgb ylwmth J^thtle ytRxblt CtJ lffe fhJtbtk ytJNu ylu <u bwsc awkfJKe fhJtbtk ytJNu.

25: atjw ftb œhBgtl «tuxufNlle mkvwKo sJtcœthe ftuLx[[tfxhle hnuNu. subtkk vevzt,œtuhzt, Cgmwaf ctuzo,ÃjtMxef vxe,rJ. ftuLx[tfxhu jtJJtlwk

ylu mtaJJtlwwk hnuNu. ylu ftuRvK yfMbt< &Nu <tu <ule mkkvwKo sJtcœthe ftuLx[tfxhle hnuNu.

26: M&¤ Wvh atjw ftbdehe œhBgtl ftb fhlth ftuLx[tfxhlt bswh / fboathe y&Jt yLg Ôgrf<lt yfMbt<lt rfMmbtk juch yufx bwsc

fhJtle &<e ftgoJtne <&t vtujem ftgoJtnele sJtcœthe ftuLx[tfxhle hnuNu.

27: stu MxtV mqalt ytvu <u bwsc mwalt vtu&e ftuLx[tfxhu htFJtle hnuNu. <ubt œhhtus fhuj ftbdehe <&t yr^ftheytuyu ftb mw^thJt fu

vtu{d{um J^thJtlt ltuk^ fhuj ntug <tu <ulwk ftuBÃjtgLm ytvJtlwk hnuNu ytJe ltu^lt sJtc l &gu fu <u «btKu M&¤ Wvh ybj l &gu

ftuLx[tfxhlu vulÕxe fhJtle mððtt yuze.mexe yuLSlehgh©elu hnuNu.

28: œhuf ytRxblt MvuNeVefuNl ybœtJtœ Bgwrlrmvj ftuvtuohuNlltk bkswh &guj <&t btLg htFuj MvuNeVefuNl Nh<tu bwsc hnuNu su

ytRxbbtk MvuNeVefuNl l ntug <uJt mkstudtubtk yuze. mexe.yuLSlegh©eltu rlKog ytFhe hnuNu. Jtuxhekd fhJtbtk lrn ytJu fu œhhtus

J^thtltu zucheÍ WvtzJtbtk lrn ytJu <tu ftuLx[tfxhlt Fauo ylu sutFbu Jdh ltuxemu Jtuxhekd fhtJJtbtk <&t zucheÍ WvtzJtbtk ytJNu ylu

cejbtkk&e hfb ftve juJtbtk ytJNu.

29: juch JuÕVuh Vkkz btxu ntjbtkk htsg mhfth©eyu fhuj nwfb bwsc 1%(yuf xft) hfb cejbtk&e ftve juJtbt ytJNu.

30: su ftbtubtk atubtmtlt mbgdt¤tlu ctœ ytvJtle Nh<tultu WÕjuF ntug ðgtk atubtmtltu vehegz <t.15 swl &e 30 mÃxuBch Mþ^eltu

dKJtbtk ytJNu. yt mbg œhBgtl ftuLx[tfxh îtht ftbdehe fhe Nftg <ub l ntug <tu <u mbgdt¤tu ctœ fhe ftble mbgbgtoœt dKJtbtk

ytJNu <&t sYhegt< Bþscle xtEb jebex J^the vK ytvJtbtk ytJNu.

31: ftuLx[tfxhu «J<obtl ybœtJtœ Bgw. ftuvtuohuNl lt JF<tuJF< lt mhfgwjh bwsc ve yuV,Jux <&t ylu muÕm xuût lu jd<t vwhtJt vubuLx

fh<e JF<u sYh vzu&e hsw fhJtlt hnuNu.

32: dwsht< mhfth©elt ©b ,futuNÕg rJftm htusdth rJCtdlt XhtJ ¢btf :LED/WRT/e-file/11/2024/0293/M2

mraJtjg,dtk^eldh,<t.15.02.2024 bwsc fboathe ©bgtudele studJtR vhevwKo &tg <u mwrlrµ< fhJtlwk hnNu.

yufhthlwk Vtubo

1) nwk/ybu yt&e yufhth fhwk Awk/fheyu Aeyu fu yt xuLzh hsw fh<tkk vnujtkk buk/ybu M&¤le bwjtft< je^e Au ylu ftblu jd<t

btjmtbtl, bswhe ylu ceS ctc<tulu jd<e M&trlf vrhrM&r<le ò<-btne<e bu¤Je Au.

2) nwk/ybu yt&e yufhth fhwk Awk/fheyu Aeyu fu yt ftuLx[tfxhtule Nh<tu rJd<tu ylu xuLzhlu jd<t œM<tJustu ft¤SvwJof yÇgtm

fgtuo Au ylu <u bwsc <ultu ybj fhJt mkkb< Awk/Aeyu.

ftuLx[tfxhle mne - rm¬tu yuze.mexe yuLSlegh

btuctEj lkch mt&u (vrùb Ítul)

TECHNICALSPECIFICATIONS:

REINFORCEDCEMENTCONCRETEPIPES

SOCKET & SPIGOT

This specification covers the requirements for manufacturing, testing, supplying,

jointingand testingat work sites of Reinforced Cement Concrete (RCC) pipes, of

both pressure and non pressure varieties used for pumping mains and gravity,

sewers and storm water drains. Laying of pipes and fittings/specials are covered

in Technical Specifications: Section-D6. The two parts are complementary and

are to be read together for a correct interpretation of the provisions of this

APPLICABLECODES

The manufacturing, testing, supplying, jointing and testing at work sites of RCC

pipes shall comply with all currently applicable statutes, regulations, standards

and codes.In particular, the following standards, unless otherwise specified

herein, shall be referred.In all cases, the latest revision of the codes shall be

referred to. If requirements of this specification conflict with the requirements of

the codes and standards, this specification shall govern.

a) IS: 458- Specification for precast concrete pipes (with and without reinf.)-

b) IS:3597 -Methodoftestsforconcretepipes.

c) IS: 5382 -Specification for rubber sealing rings for gas mains, water mains

d) IS:516 -Methodoftestforstrengthofconcrete.

a) IS:456-Codeofpracticeforplainandreinforcedconcrete

b) IS:783-Codeofpracticeforlayingofconcretepipes

Design of RCC pipes including reinforcement details and the ends of pipes shall

be in accordance with the relevant clauses of IS: 458-2021.

Pipe should be with ISI mark confirming to IS-458-2021. Pipe can be

manufactured by spinning process or by vibrated casting process.

The method of manufacture shall be such that the form and the dimensions of the

finishedpipesareaccuratewithinthelimitsspecifiedinrelevantclauseofIS:

458.The surfaces and edges of the pipes shall be well defined and true, and their

ends shall be square with the longitudinal axis.The ends of the pipes shall be

further reinforced by an extra ring of reinforcement to avoid breakage during

transportation.

The RCC pipes and rubber rings shall be systematically checked for any

manufacturing defects by experienced supervisors so as to maintain a high

standard of quality.

Owner/Engineer shall at all reasonable times have free access to the place where

thepipesandcollars/rubberringsaremanufacturedforthepurposeofexamining

and testing the pipes and collars/rubber rings and of witnessing the test and

All tests specified either in this specification or in the relevant Indian Standards

shall be performed by the supplier/contractor at his own cost and in presence of

Owner/Engineer if desired.For this, sufficient notice before testing of the pipes

and fittings shall be given to Owner/Engineer.

If the test is found unsatisfactory, Owner/Engineer may reject any or all pipes of

that lot.The decision ofOwner/Engineer in thismatter shall be final and binding on

Contractor and not subject to any arbitration or appeal.

Cement used for the manufacture of RCC pipes should be SRC and shall confirm

to relevant IS codes.

Aggregates used for the manufacture of RCC pipes shall conform to IS:383.The

maximum size of aggregate should not exceed one-third the thickness of the pipe

or 20 mm, whichever is smaller.

MixingandCuringWater

Water shall be clean, colorless and free from objectionable quantities of organic

matter, alkali, acid, salts or other impurities that might reduce the strength,

durability or other desirable qualities of concrete and mortar.

Reinforcement used for the manufacture of the RCC pipes shall be mild steel

GradeIormediumtensilesteelbarsconformingto IS:432(Part-I)orhard-drawn steel

wireconformingto IS: 421 (Part-2).Reinforcement cages for pipes shall be as per

relevant requirements of IS:

Concrete used for the manufacture of RCC pipes shall conform to IS: 456.The

minimum cement content and minimum compressive strength of concrete shallbe

as per relevant requirements of IS:458 (Latest Edition). Compressive strength

tests shall be conducted on 15 cm cubes in accordance with the relevant

requirements of IS: 456 and IS:

Rubber ring chords used in pipe joints shall be EPDM rubbering as per IS 5382 :

Pipes manufactured in compliance with IS:458(Latest Edition) shall be either

water cured or steam cured for minimum stipulated curing period in accordance

with relevant requirements ofthe latest revised IS:458(Latest Edition).

The internal diameter, wall thickness and length of barrel and collar of pipes,

reinforcement (longitudinal and spiral), type of ends and minimum clear cover to

reinforcement and strength test requirements shall be as per the relevant

clauses/tables of IS: 458 for different classes of pipes.

Table–3ofIS-458-2021

Design and Strength Test Requirements of Concrete Pipes of Class NP3

ReinforcedConcrete,MediumDuty,Non-PressurePipesmadebyspinningprocess

(Clauses6.1.1,6.1.2.1,6.1.3,6.2.2,7.3.2and8.1andTable20)

Internal Barrel Reinforcements StrengthTestRequirements

Diameter Wall forThreeEdgeBearingTest

ofPipesin Thickness Longitudinal, Mild Spirals, LoadtoProduce Ultimate

mm SteelorHardDrawn Hard 0.25mmCrack Load

Steel Draws kN/linearmetre

Minimum Kg/linear Kg/linear kN/linear

number metre metre metre

1. If mild steel is used for spiral reinforcement, the weight specified under col.5 shall be

increased to 140/125.

2. The longitudinal reinforcement given in this table is valid for pipes upto 2.5 m. effective

length for internal diameter of pipe upto 250 mm and upto 3 m. effective length for

higher diameter pipes.

3. Total mass of longitudinal reinforcement shall be calculated by multiplying the values

given in col.4 by the length of the pipe and then deducting for the cover length provided

at the two ends.

4. Concreteforpipesshallhaveaminimumcompressivestrengthof35N/mm2at28days.

Table–5ofIS-458-2021

Design and Strength Test Requirements of Concrete Pipes of Class NP3

ReinforcedConcrete,MediumDuty,Non-PressurePipesMadebyVibratedCasting

Internal Minimum Reinforcements StrengthTestRequirements

Diameter Barrel forThreeEdgeBearingTest

ofPipesin Wall Longitudinal, Mild Spirals, LoadtoProduce Ultimate

mm Thickness SteelorHardDrawn Hard 0.25mmCrack Load

Steel Draws kN/linearmetre kN/linear

Minimum Kg/linear Kg/linear

number metre metre

Note : Concrete for pipes shall have a minimum compressive strength of 35 N/mm2

Table–6ofIS-458-2021

DesignandStrengthTestRequirementsofConcretePipesofClassNP4 Reinforced

Concrete, Heavy Duty, Non-Pressure Pipes

(Clauses6.1.1,6.1.2.1,6.1,3,6.2.2,7.3,2and8.1;andTable20)

Internal Minimum Reinforcements StrengthTestRequirements

Diameter Barrel forThreeEdgeBearingTest

ofPipesin Wall Longitudinal, Mild Spirals, LoadtoProduce Ultimate

mm Thickness SteelorHardDrawn Hard 0.25mmCrack Load

Steel Draws kN/linearmetre kN/linear

Minimum Kg/linear Kg/linear

number metre metre

Note:1.Ifmildsteelisusedforspiralreinforcement,theweightspecifiedundercol.5 shall be increased

2. The longitudinal reinforcement given in this table is valid for pipes upto 2.5 m.

effective length for internal diameter of pipe upto 250 mm and 3 m. effective

length for higher diameter pipes.

3. Total mass of longitudinal reinforcement shall be calculated by multiplying the

values given in col.4 by the length of the pipe and then deducting for the cover

length provided at the two ends.

4. Concrete for pipes shall have a minimum compressive strength of 35 N/mm2 at

Table–8ofIS-458-2021

DesignandStrengthTestRequirementsofConcretePipesofClassNP4 Reinforced

Concrete, Heavy Duty, Non-Pressure Pipes

madebyVibratedcastingprocess

Internal Minimum Reinforcements StrengthTestRequirements

Diameter Barrel forThreeEdgeBearingTest

ofPipesin Wall Longitudinal, Mild Spirals, LoadtoProduce Ultimate

mm Thickness SteelorHardDrawn Hard 0.25mmCrack Load

Steel Draws kN/linearmetre kN/linear

Minimum Kg/linear Kg/linear

number metre metre

Note : Concrete for pipes shall have a minimum compressive strength of 35 N/mm2at

The tolerances regarding overall length, internal diameter of pipes or sockets and

barrel wall thickens shall be as per relevant clause of IS:

WORKMANSHIPANDFINISH

Pipes shall be straight and free from cracks except that craze cracks may be

permitted.The ends of the pipes shall be square with their longitudinal axis so that

when placed in a straight line in the trench no opening between ends in contact

shall exceed 3 mm in pipes up to 600 mm diameter (inclusive), and 6 mm in

pipes larger than 600 mm diameter.

The outside and inside surfaces of the pipes shall be smooth, dense and hard, and

shall not be coated with cement wash or other preparation unless otherwiseagreed

to between Owner/Engineer and the manufacturer or supplier.

The pipes shall be free from defects resulting from imperfect grading of the

aggregate, mixing or moulding.

The pipes shall be free from local dents or bulges greater than 3 mm in depth and

extendingoveralength in anydirection greaterthan twicethethickness of barrel.

The deviation from straight in any pipe throughout its effective length, tested by

meansofarigidstraight edgeparalleltothelongitudinalaxisofthepipeshallnot exceed,

for all diameters 3 mm forever meter run.

All pipes for testing purposes shall be selected at random from the stock of the

manufacturer and shall be such as would not otherwise be rejected under the

criteria of tolerances as mentioned in IS:458 (Latest Edition).

During manufacture, tests on concrete shall be carried out as per IS:456.The

manufacturer shall supply, when required to do so byOwner/Engineer the results

of compressive tests of concrete cubes and split tensile tests of concrete cylinders

made from the concrete used for the pipes.The manufacturer shall supply

cylinders or cubes for test purposes required by the Owner/Engineer and such

cylinders or cubes shall withstand thetests prescribed bythemanufacturer forthe

hydrostatic test pressure.For non-pressure pipes, 2 percent of the pipes shall be

tested for hydrostatic test pressure.

The specimen of pipes for the followingtests shall be selected in accordance with

relevant Clause of IS:458(Latest Edition)and tests in accordance with the

methods described in IS:3597.

i) Hydrostatictest

ii) Threeedgebearingtest

iii) Absorptiontest

Note:Three edge bearing strength to produce 0.25 mm crack in case of special

design of pipes shall be as per IS:458:2003.

For Inspection at manufacturing site 24 hrs. access shall be provided to AMC

Engineers as well as engineer appointed by PMC/TPI agency.Apart from this

AMC will establish its own pipe testing facility where pipes will be randomly

tested.The cost of transporting the pipe to the testing facility & testing charges

shall be borne by the contractor.

SAMPLINGANDINSPECTION

In any consignment, all the pipes of same class and size and manufactured under

similarconditionsofproductionshallbegrouped togethertoconstitutealot.The

conformity of a lot to the requirements of this specification shall be ascertainedon

the basis of tests on pipes selected from it.

The number of pipes to be selected from the lot for testing shall be in accordance

with Table 15 of IS:458 (Latest Edition).

Pipes shall be selected at random.In order to ensure randomness, all the pipes in

the lot may be arranged in a serial order and starting from any pipe, every‘n’th

pipe be selected till the requisite number is obtained, n being the integral part of

N/n, where N is the lot size and n is the sample size.

Allpipesselectedas per IS :458 shallbe inspectedfordimensional requirements,

finish and deviation from straight.A pipe failing to satisfy one or more of these

requirements shall be considered as defective.

The number of pipes to be tested for tests under IS : 458 shall be in accordance

with column 4 of Table 15 of IS:458 (Latest Edition).These pipes shall be

selected from pipes that have satisfied the requirements mentioned in Clause

A lot shall be considered as conforming to the requirements of IS:458 (Latest

Edition) of the following conditions are satisfied.

(a) The number of defective pipes shall not be more than the permissible

number given in column 3 of Table 15 of IS:458 (Latest Edition).

(b) All the pipes tested for various tests as per IS-458 shall satisfy

corresponding requirements of the tests.

(c) In case the number of pipes not satisfying requirements of any one or

more tests, one or two further samples of same size shall be selected and

tested for the test or tests in which failure has occurred.All these pipes

shall satisfy the corresponding requirements of the test.

Thefollowinginformationshallbeclearlymarkedoneachpipe:

b) Internaldiameterofpipe

d) Dateofmanufacture,and

e) Nameofmanufacturerorhisregisteredtrademarkorboth.

ThelayingofRCCpipesshallconformtoTechnicalSpecifications:Section.

Jointing of RCC pipes shall be done with SRC cement only and as per the

requirements of following specifications and as per the relevant IS.The type of

joints shall be as below.After jointing, extraneous material, if any, shall be

removed from the inside of the pipe and the newly made joints shall be

thoroughly cured.In case, rubber-sealing rings are used for jointing, these shall

conform to IS 5382 and shall be of such type as mentioned in IS-458:2003.

FLUSHJOINT(INTERNAL)

This joint shall be generallyused for culvert pipes of 900-mm diameter and over.

The ends of the pipes are specially shaped to form a self-centering joint with an

internal jointing space 13-mm wide.The finished joint is flush with both inside

and outside with the pipe wall.The jointing space is filled with cement mortar in

the proportion as specified in IS-458-2003, mixed sufficiently dry to remain in

position when forced with a trowel or rammed.

FLUSHJOINT(EXTERNAL)

This joint is suitable for pipes which are too small for jointing from inside.This

joint is composed ofspeciallyshaped pipe ends.Each end shall bebutted against

eachotherandadjustedincorrectposition.Thejointingspaceshallthenbefilled with

cement mortar as specified in IS-458-2003, sufficiently dry and finished off

flush.Great care shall be taken to ensure that the projecting ends are not damaged

as no repairs can be readily affected from inside the pipe.

SPIGOTANDSOCKETJOINT(FLEXIBLE)

The RCC pipe with the rubber ring accurately positioned on the spigot shall be

pushed well home into the socket of the previously laid pipe by means of

uniformly applied pressure with the aid of a jack or similar appliance.The RCC

pipes shall be of spigot and socket type and rubber rings as specified in IS-458-

2003, shall be used, and the manufacturers instructions shall be deemed to form a

part of these specifications.The rubber rings shall be lubricated before making the

joint and the lubricant shall be soft soap water or an approved lubricant supplied

by the manufacturer.

Socket & Spigot NP3 & NP4 pipe with rubber ring roll on joint for diameter upto

900 mm should be provided as per table 14 pf IS 458 :

Socket & spigot NP3 & NP4 pipe with rubber ring confined joint for diameter

1000 mm to 2200 mm should be provided as per Table -17 of IS 458:2003.

CLEANINGOFPIPES

As soon as a stretch of RCC pipes has been laid complete from Machinehole to

Machinehole or for a stretch as directed by Owner/Engineer, contractor shall run

through the pipes both backwards and forwards a double disc or solid or closed

cylinder75mmlessindiameterthantheinternaldiameterofpipes.Theopen

end of the incomplete stretch of pipeline shall be securely closed as may be

directed by Owner/Engineer to prevent entry of mud or silt etc.

If as a result of the removal of any obstructions Owner/Engineer considers that

damages may have been caused to the pipelines, he shall be entitled to order the

stretch to be tested immediately.Should such test prove unsatisfactory, contractor

shall amend the work and carry out such further tests as are requiredby

Owner/Engineer.

It shall also be ascertained by contractor that each stretch from Machinehole to

Machinehole or the stretch as directed by Engineer is absolutely clear andwithout

any obstruction by means of visual examination of the interior of the pipeline

suitably enlightened by projected sunlight or otherwise.

TESTINGATWORKSITE

Afterlaying and jointing ofRCC pipes is completed thepipelineshall betested at

work site as per the following specifications and as directed by Owner/Engineer.

All equipment for testingat work site shall be supplied and erected bycontractor.

Water for testing of pipes shall be arranged by him.Damage during testing shall

be contractor’s responsibility and shall be rectified by him to the full satisfaction

of Owner/Engineer.Water used for test shall be removed from pipes and not

released to the excavated trenches.

After the joints have thoroughly set and have been checked by Owner/Engineer

and before backfilling the trenches, the entire section of the sewer or storm water

drain shall be proved by contractor to be water tight byfilling in pipes with water

to the level of 1.50 m above the top of the highest pipe in the stretch and heading

the water up for the period of one hour.The apparatus used for the purpose of

testing shall be approved by Owner/Engineer.Contractor if required by

Owner/Engineer shall dewater the excavated pit and keep it dryduring the period

of testing.The loss of water over a period of 30 minutes should be measured by

adding water from a measuring vessel at regular 10 minutes intervals and noting

thequantityrequiredtomaintaintheoriginalwaterlevel.Fortheapprovalofthis test the

average quantity added should not exceed 1 litre/hour/100 linear metres/10 mm

of nominal internal diameter.Any leakage including excessive sweating which

causes a drop in the test water level will be visible and the defective part of the

work should be removed and made good.

In case of pressure pipeline the completed stretch of pipeline shall be tested for

sitetestpressureasspecifiedin IS-458-2003.The sitetestpressureshouldnotbe less

than the maximum operating pressure plus the calculated surge pressure, but in

no case should it exceed the hydrostatic test pressure as specified in IS:458

(Latest Edition).

All RCC pipes shall be measured according to the work actually done and no

allowance will bemade foranywastein cuttingto theexact length required.The

measurement for pipes shall be in running meter nearest to a cm. of length along

the centre line of pipe as actually laid at work sites.

The rate for providing, laying and jointing of RCC pipes shall be deemed to

include the cost of rubber rings, jointing material, testing and extra excavation

required for ordinary bedding of pipes and also for pipe sockets, if any.

 If any damage is caused to the pipeline during the execution of work or while

cleaning/testing the pipeline as specified.Contractor shall be heldresponsible

for the same and shall replace the damaged pipeline and retest the same at his

own cost to the full satisfaction of Engineer.

 WaterfortestingofpipelineshallbearrangedbyContractorathisowncost.

 Pipesshallbebroughtonsiteproportionatetothe requiredprogressforThirty days

D-5: SITEFILLING

Apartfromanyother work/ purposeforwhich this specification maybemade applicable by

Engineer, this shall generally govern work involving filing site / plant over the entire area /

most of the area to raise the general grade level to the desired elevation.This work shall be

carried out as per applicable clauses “Earthwork in Grading, Excavation and Backfilling”

particularly clauses 10 &

All fill material whether such material is brought from outside borrow areas or excavation

within the site, will be subject to Engineer’s approval.Notwithstanding any approval given to

the fill material or borrow areas from which fill material is proposed to be brought, Engineer

/ Owner reserves the right to reject such material which in his opinion either does not meet

the specification requirements or is unsuitable for the purpose for which it is intended.

It shall be Contractor’s responsibility to locate suitable borrow areas for borrowing fill

material.Such areas will be inspected by Engineer and approved before Contractor makes

arrangements to borrow the fill material.The top soil which may contain vegetation,rubbish,

slush etc. shall not be used.If demanded by Engineer.Contractor shall arrange to have trial

pits of specified dimensions and numbers dug at locations specified, for Engineerto examine

the nature and type of material likely to be obtained from the borrow area.

Lead,Liftand Transportation

Unless separately provided, for, all lead, lift and transportation required for bringing in thefill

material from borrow areas or from excavation from within the site shall be included in the

Contractor’s quote unit rates.

The borrowed soil shall be generally granular, and non-cohesive.It shall consist of sand, silty

sand, murrum, ordinary soil, gravel and shingle.Dredged material, free from clayey deposit,

will be accepted.Fill material shall also be free from sulphates, salts, organise, foreign and

other harmful or objectionable materials.Any material rejected by Engineer shall be removed

from the site immediately.

Roads, whether of temporary or other nature, required to be constructed foraccess and for

movement of man, materials. Equipments, transport vehicles, vehicles carrying fill material

etc. to or over borrow areas and/or to or over areas on which fill has to be deposited shall be

constructed by Contractor at his cost.Such costs shall be deemed to have been included in the

unit rates quoted byContractor.Such access roadsshall be maintained in good condition

during all seasons to ensure completion of work according to time schedule.

Site clearing before filling shall be carried out as specified in the enclosed specification.

Earthwork in Grading, Excavation and backfilling.

Backfill shall be deposited to bring the grade level to desired elevation after compaction

Backfillshallbecompacted,wheresospecified,by12tonnerollersasindicatedinClause

D.5.5.2.3below.Thefillmaterialshallbecompactedtothespecifieddensity,whereso specified.

If the density of fill use of rollers for compaction is not specified.Contractor shall ensure

necessary compaction by the passage of trucks, carrying the fill material over the deposited

fill in suchaway that the entire fill area is covered.These will reasonably compact the sand fill

will be accepted by Engineer.However, Contractor shall ensure that every layer is thus

compacted before the succeeding layers are deposited.Each layer shall not exceed 200 mm in

Compaction of back fill by flooring the area shallbe carried out where so specified.In this

case, Contractor should ensure that the fill material is not washed away.This work shall be

carried out as directed by Engineer.

Approval soil fill consisting of ordinary soil, murrum, soil containing gravel, shingle

etc.shallbedepositedinlayersnotexceeding200mm.Contractorshouldensurethatallclodsof earth

are broken down to a size not larger than 100 mm.

Where density of fill or use of rollers is not specified, the fill shall be carried out as specified

in Clause D.5.5.1.3 above.

Wherethefillmaterialhastobecompactedbyuseof rollersprocedureasspecifiedinClause

D.1.10.5.2ofspecificationfor“EarthworkinGrading,ExcavationandBackfilling”.

Wherespecified,therequireddensityoffillshallbeobtainedbypropercompaction.

The ratequoted by the contractor for filling available excavated earth (excluding rock

ifany)willbeconsideredforpaymentforsitefillingasperthequantityexecutedandmeasured in

D-6:CONCRETEWORKS

This Specification covers the general requirements for concrete using on-site production

facilities including requirements in regard to the quality, handling, storage of ingredients,

proportioning,batching,mixing,transporting,placing,curing,protecting,repairing,finishing and

testing of concrete; form work; requirements in regard to the quality, storage, bending and

fixing of reinforcement; grouting as well as mode of measurement and payment for complete

It shall be very clearly understood that the specifications given herein are brief and do not

cover minute details.However, all work shall have to be carried out in accordance with the

relevant standards and codes of practices or in their absence in accordance with the best

accepted current engineering practices or as directed by Engineer from time to time.The

decision of Engineer as regards the specification to be adopted and their interpretation andthe

mode of execution of work shall be final and binding on Contractor and no claim whatsoever

will be entertained on this account.

APPLICABLECODESANDSPECIFICATIONS

The following specifications, standards and codes, including all official amendments /

revisions and other specifications and codes referred to therein, should be considered a partof

this specification.In all cases the latest issue / edition / revision shall apply.In case of

discrepancy between this specification and those referred to herein below or other

specifications forming a part of this bid document, this specification shall govern.

CodeforMaterials

1. IS: 269 -Specificationfor33gradeordinaryportland cement

2. IS: 455 -Specificationforportlandslagcement

3. IS: 1489 - Specificationforportlandpozzolanacement

4. IS: 8112 -Specificationfor43gradeordinaryportland cement.

5. IS: 12330 -Specificationforsulphateresistingportlandcement

6. IS: 383 -Specificationforcoarseandfineaggregatesfromnatural

sourcesforconcrete.

7. IS: 432 - Specification for mild steel and medium tensile steel bars

(Part1and2) and hard drawn steel wires for concrete reinforcement.

8. IS: 1786 -Specificationforhighstrengthdeformedsteelbarsand

wiresforconcretereinforcement.

9. IS: 1566 -Specificationforharddrawnsteelwirefabricforconcrete

10. IS: 9103 -Specificationforadmixturesforconcrete.

11. IS: 2645 -Specification for integral cement water proofing

12. IS: 4990 -Specificationforplywoodforconcreteshutteringwork.

13. IS: 12269 -Specificationfor53gradeordinaryportland cement.

CodeforMaterial Testing

1. IS: 4031 -Methodsofphysicaltestsforhydraulic cement.

2. IS: 4032 -Methodsofchemicalanalysisofhydraulic cement.

3. IS: 650 -Specificationsforstandardsandfortestingof cement.

4. IS: 2430 -Methodsforsamplingofaggregatesfor concrete.

5. IS: 2386 -Methodsoftestforaggregatesforconcrete.

6. IS: 3025 -Methodsofsamplingandtest(physicalandchemical)

waterusedin industry.

7. IS: 6925 -Methodsoftestfordeterminationofwatersoluble

chloridesinconcreteadmixtures.

CodeforMaterialsStorage

1. IS: 4082 -Recommendationsonstackingandstoringofconstruction

materialsatsite.

CodeforConcreteMixDesign

1. IS: 10262 -Recommendedguidelinesforconcretemix design.

2. SP:23 -HandbookonConcrete Mixes.

CodeforConcreteTesting

1. IS: 1199 -Method ofsamplingandanalysisof concrete.

2. IS: 516 -Method of testforstrengthof concrete

3. IS: 9013 -Methodofmaking,curinganddeterminingcompressive

strengthofacceleratedcuredconcretetest specimens.

4. IS: 8142 -Methodoftestfordeterminingsettingtimeofconcreteby

penetrationresistance.

5. IS: 9284 -Method oftestforabrasionresistanceofconcrete.

6. IS: 2770 -Methodsof testingbondinreinforcedconcrete.

CodeforEquipment

1. IS: 1791 - Specificationforbatchtypeconcretemixers.

2. IS: 2438 - Specificationforrollerpanmixer.

3. IS: 4925 - Specificationforconcretebatchingandmixingplant.

4. IS: 5892 - Specificationforconcretetransitmixerandagitator.

5. IS: 7242 - Specificationforconcretespreaders.

6. IS: 2505 - GeneralRequirementsforconcrete

vibrators:Immersiontype.

7. IS: 2506 - GeneralRequirementsforscreedboardconcretevibrators.

8. IS: 2514 - Specificationforconcretevibratingtables.

9. IS: 3366 - Specificationforpanvibrators.

10. IS: 4656 - Specificationforformvibratorsfor concrete.

11. IS: 11993 - Codeofpracticeforuseofscreedboardconcretevibrators.

12. IS: 7251 - Specificationforconcretefinishers.

13. IS : 2722 - Specification for portable swingweigh batchers for concrete

(single and double bucket type).

14. IS: 2750 - Specificationforsteelscaffoldings.

CodesofPractice

1. IS: 456 - Codeofpracticeforplainandreinforced concrete.

2. IS: 457 - Codeofpracticeforgeneralconstructionofplainand

reinforcedconcretefordamsandothermassivestructures.

3. IS: 3370 - Codeofpracticeforconcretestructuresforstorageof liquids.

4. IS: 3935 - Codeofpracticeforcomposite construction.

5. IS: 2204 - Codeofpracticeforconstructionofreinforcedconcrete

6. IS: 2210 - Criteria forthedesignofreinforcedconcreteshellstructures

andfolded plates.

7. IS: 2502 - Codeofpracticeforbendingandfixingofbarsforconcrete

8. IS: 5525 - Recommendation for detailing of reinforcement in

reinforcedconcreteworks.

9. IS: 2751 - Codeofpracticeforweldingofmildsteelplainand

deformedbarsusedforreinforcedconcreteconstruction.

10. IS: 9417 - Specificationforweldingcoldworkedbarsforreinforced

concreteconstruction.

11. IS: 3558 - Codeofpracticeforuseofimmersionvibratorsfor

consolidatingconcrete.

12. IS: 3414 - Codeofpracticefordesignandinstallationofjointsin

13. IS: 4326 - Codeofpracticeforearthquakeresistantdesignand

constructionofbuilding.

14. IS: 4014 - Codeofpracticeforsteeltubularscaffolding.

15. IS: 2571 - Codeofpracticeforlayingin-situcementconcrete flooring.

16. IS : 7861 - Code of practice for extreme weather concreting.

(Part – 1) - Recommended practice for hot weather concreting.

(Part – 2) - Recommendedpracticeforcoldweatherconcreting.

CodeforConstructionsafety

1. IS: 3696 -Safetycodefor scaffoldsandladders.

(PartsIand III)

2. IS: 7969 -Safetycodeforhandlingandstorageofbuildingmaterials.

3. IS: 8989 -Safetycodeforerectionofconcreteframed structures.

CodeforMeasurement

1. IS: 1200 -Methodofmeasurementofbuildingandengineering works.

2. IS: 3385 -CodeofpracticeformeasurementofCivilEngineering

Engineer shall have the right at all times to inspect all operations including the sources of

materials, procurement, layout and storage of materials, the concrete batching and mixing

equipment, and the quality control system.Such an inspection shall be arranged and

Engineer’s approval obtained, prior to starting of concrete work.This shall, however, not

relieve Contractor of any of his responsibilities.All materials which doe not conform to this

specification shall be rejected.

Materials should be selected so that they can satisfy the design requirements of strength,

serviceability, safety, durability and finish with due regards to the functional requirements

and the environmental conditions to which the structure will be subjected.Materials

complying with codes / standards shall generally be used, other materials may be used after

approval of the Engineer and after establishing theirperformance suitability based on

previous data, experience or tests.

Unless otherwise specified or called for by the Engineer, cement shall be Ordinary Portland

cementconformingtoIS(latestedition)asperSchedule-Bforconstructionboxetc.

Where Portland pozzolana or slag cement are used, it shall be ensured that

consistency of quality is maintained, there will be no adverse interactions between the

materials and the finish specified is not marred.

Only one type of cement shall be used in any one mix.The source of supply, type or brand of

cement within the same structure or portion thereof shall not be changed without approval

Cement which is not used within 90 days from its date of manufacture shall be tested at a

laboratory approved by Engineer and until the results of such tests are found satisfactory, it

shall not be used in any work.

Aggregates(General)

“Aggregate” in general designates both find and coarse inert materials used in themanufacture

of concrete (vide BIS 456 & BIS 383) and conforming to tests as per BIS 2386 (Part I to VI).

“Coarse Aggregate” is aggregate most of which is retained when passed through on 4.75 mm

All fine and coarse aggregates proposed for use in the works shall be subject to the Engineer-

in-Charge’s approval and after specific materials have been accepted, the source of supply of

such materials shall not be changed without prior approval of the Engineer-in-charge.

Aggregates shall consist of natural sand, stone (crushed or uncrushed) and gravel from a

source known to produce satisfactory aggregate for concrete and shall be chemically inert,

non-flaky, strong, hard, durable against weathering, or limited porosity and free from

deleterious materials that may cause corrosion of the reinforcement or may impair the

strength and or durability of concrete.The grading of aggregates shall be such as to produce a

dense concrete of specified strength and consistency that will work readily into position

without segregationand shall be based onthe “mix design” and preliminarytestson concrete

specified later.The aggregates shall be brought from the source as mentioned in Volume–I

Samplingandtesting

Samples of the aggregates for mixed design and determination of suitability shall be taken

under the supervision of the Engineer-in-charge and deliveredto the laboratory, well in

advance of the scheduled placing of concrete.Records of tests, which have been made on

proposed aggregates and on concrete made from this source of aggregates shall be furnished

to Engineer-in-charge in advance of the work, for use in determining aggregate suitability.

The costs of all such tests, sampling etc. shall be borne by the contractor.

Storageof aggregates

All coarse and fine aggregates shall be stacked separately in stock piles in the material yard

near the work site in bins properly constructed to avoid inter mixing of different aggregates.

Contamination with foreign material and earth during storage and while heaping thematerials

shall be avoided.The aggregates must be of specified quality not only at the time of receiving

at site but more so at the time of loading into mixer.Rakers shall be piled in layers not

exceeding 1.20 m in height to prevent coning or segregation.Each layer shall cover the entire

area of stock pile before succeeding layers are started.Aggregates that have become

segregated shall be rejected.

SpecificGravity

Aggregates having a specific gravity below 2.4 (saturated surface dry basis) shall not beused.

Fine aggregate shall consist of natural or crushed sand conforming to IS 383 conforming to

tests as per IS 2386 part Ito IV.The sand shall be clean, sharp, hard, stronganddurable and

shall be free from dust, vegetable substances, adherent coating, clay, alkali, organic matter,

mica, salt or other deleterious substances, which can be injurious to the setting qualities /

strength/ durability of concrete.

Screening and Washing : Sand shall be prepared for use by such screening or washing, or

both, as necessary, to remove all objectionableforeign matter while separating the sand grains

to the required size fraction.

Foreign Material limitations : The percentage deleterious substances in sand delivered to the

mixer shall not exceeding the following :

Sr. ForeignMaterial Percentagebyweight

No. Uncrushed Crushed

1 Materialfinerthan75micronISsieve 3.0

3 CoalandLignite 1.0

4 ClayLumps 1.0

Gradation : Unless otherwise directed or approved by the Engineer-in-charge, the grading of

sand shall be within the limits indicated hereunder.

IS : Sieve Grading Grading Grading Grading

Designation Zone-I Zone-II Zone-III Zone-IV

Where the grading falls outside the limits of any particular grading zone of sieves, other than

600 microns IS sieve, by total amount not exceeding 5%, it shall be regarded as fallingwithin

600 microns IS sieve, by total amount not exceeding 5%, it shall be regarded as fallingwithin

that grading zone.This tolerance shall not be applied to percentage passing the 600 micron IS

sieve or to percentage passing any other sieve on the coarser limit of grading zoneI or the

finer limit of grading zone IV.Fine aggregates conforming to grading zone IV shall not be

used.Mix designs and preliminary tests shall show its suitability for producing concrete of

specified strength and workability.

FinenessModulus

The sand shall have a fineness modulus of not less than 2.2 or more than 4.2.The fineness

modulus is determined by adding the cumulative percentages retained on the following IS

sievesizes(4.75mm,2.35mm,1.18mm,600micronsand150microns)anddividingthe

CoarseAggregate

Coarse aggregate for concrete, except as noted above, shall conform to IS 383 and IS

This shall consist of crushed stone and shall be clean and free from elongated, flaky or

laminated pieces, adhering coatings, clay lumps, coal residue, clinkers, slag, alkali, mica,

organic matter or other deleterious matter.

Screening and Washing : Crushed rock shall be screened and or washed for the removal of

dirt or dust coating, if so requested by the Engineer-in-charge.

Coarse aggregate shall be either in single size or graded, in both cases the grading shall be

within the following limits :

IS Percentagepassingforsinglesized Percentagepassingforgraded

Sieve aggregate of normal size aggregate of normal size

The pieces shall be angular in shape and shall have granular or crystalline surfaces.Friable,

flaky and laminated pieces, mica and shale, if present, shall be only within tolerance limits

whichwill not affect adverselythestrengthandor durabilityor concrete.Themaximumsize of

coarse aggregate shall be 40 mm for M7.5 and M10 and 20 mm for M15 to M20 concrete, or

as directed by the Engineer-in-charge or specified otherwise.The maximum size ofcoarse

aggregate shall be the maximum size specified above but in no case greater than ¼ thof the

minimum thickness of the member, provided that the concrete can be placed without

difficultyso as to surroundall reinforcement thoroughlyand fill the corners of theform.For

plain concrete the maximum size of aggregate shall be of 40 mm.for heavily reinforced

concrete members, the nominal maximum size of the aggregate shall be 5 mm less than the

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

cover reinforcement whichever is smaller.

Foreignmaterial limitations

The percentage of deleterious materials in the aggregate delivered to the mixer shall not

exceed the following :

Sr. ForeignMaterial Percentagebyweight

No. Uncrushed Crushed

1 Materialfinerthan75 micron 3.0

2 Coalandlignite 1.0

3 Claylumps 1.0

4 Softfragments 3.0 --

Water used for both mixing and curing shall conform to IS : 456.Potable water is generally

satisfactory.Water containing any excess of acid, alkali, sugar or salt shall not be used.

Reinforcement bars shall conform to IS : 432, IS : 226 or IS : 1786 and the welded wire

fabric to IS : 1566 as shown or specified on the drawings. Only T.M.T. bars as for

specification will be followed.

All reinforcement shall be clean, free from pitting, oil, grease, paint, loose mill scales, rust,

dirty dust or any other substance that will destroy or reduce bond.

If permitted by Engineer, welding of reinforcement shall be done in accordance with IS ;

2751 or IS : 9417 as applicable.

Plasticizer, water-reducing add mixture and concrete water proofer shall conform to IS :9103

and integral water proofing admixtures to IS : 2645.Dosage of plasticizer used in concrete

work shall be 300 ml / 50 kg of cement.Manufacturer must comply ISO-9002 specifications.

Admixtures may be used in concrete as per manufacturer’s instructions only with the

approval of Engineer based upon evidence that with the passage of time neither the

compressive strengthnorits durabilityis reduced.Anadmixture’s suitablyandeffectiveness shall

be verified by trial mixes with the other material used in the works.If two or more admixtures

are to be used simultaneously in the same concrete mix, their interaction shall be checked

and trial mixes done to ensure their compatibility.There should also be no increase in risk of

corrosion of the reinforcement or other embedments.

Calcium chloride shall not be used for accelerating set of the cement for any concrete

containing reinforcement or embedded steel parts.When calcium chloride is permitted such

as in mass concrete works, it shall be dissolved in water and added tothe mixingwater byan

amount notexceeding1.5 percentoftheweight ofthecement ineach batchofconcrete.The

designed concrete mix shall be corrected accordingly.

Nowastageallowanceforcementandsteelshallbeconsideredandpaidfor.

SAMPLESANDTESTS

Allmaterialsusedfortheworksshallbetestedbefore use.

Manufacturer’s test certificate shall be furnished, for each batch of cement / steel and when

directed by Engineer samples shall also be got tested by the Contractor in a laboratory

approved by Engineer at no extra cost to Client.However, where material is supplied by

Client, all testing charges shall be borne by Client; but transportation of material samples to

the laboratory shall have to be done by Contractor at no extra cost.

Samplingandtestingshall beasper IS: 2386under thesupervisionof Engineer.Thecost of all

tests, sampling etc. shall be borne by Contractor.

Watertobeusedshallbetestedtocomplywithrequirement ofIS:

Contractor shall furnish manufacturer’s test certificates and technical literature for the

admixture proposed to be used.If directed the admixture shall be got tested and approved

laboratory at no extra cost.

STORINGOFMATERIALS

All material shall be stored in a manner so as to prevent its deterioration and contamination

which would preclude its use in the works.Requirements of IS : 4082 shall be complied with.

Contractor will have to make his own arrangements for the storage of adequate quantity of

cement even if cement is supplied by Client. Cost of such rejected cement, where cement is

supplied by Client, shall be recovered at issue rate or open market rate which ever is higher.

Cement bags shallbe stored indryweatherproof shedwitha raisedfloor, wellawayfromthe outer

walls and insulated from the floor to avoid moisture from ground.Not more than 15 bags

shall be stacked in any tier.Storage arrangement shall be approved by Engineer. Storage

under tarpaulins shall not be permitted.Each consignment of cement shall be stored

separately and consumed in its order or receipt.

Each size of coarse and fine aggregates shall be stacked separately and shall be protected

fromleavesandcontamination withforeign material.Thestacks shall be onhard,clean,free

draining bases, draining away from the concrete mixing area.

Contractor shall make his own arrangements for storing water at site in tanks to prevent

The reinforcement shall be stacked on top of timber sleepers to avoid contract with ground /

water.Each type and size shall be stacked separately.

Concrete grade shall be as designated on drawings.In concrete grade M15, M20, M25 etc. the

number represents the specified characteristic compressive strength of 150 mm cube at28

days, expressed in N/sq.mm as per IS : 456.Concrete in the works shall be “Design Mix

Concrete”or “Normal MixConcrete”.Allconcrete works of gradeM5, M7.5 and M10 shall be

Nominal whereas all other grades, M15 and above, shall be Design Mix Concrete.

DesignMix Concrete

MixDesignandTesting

For Design Mix Concrete, the mix shall be designed according to IS : 10262 and SP: 23 to

provide the grade of concrete havingthe required workabilityand characteristics strength not

less than appropriate values given in IS : 456.The design mix shall in addition be such

thatitiscohesive anddoesnotsegregateandshouldresultin denseanddurableconcreteandalso

capable of giving the finish as specified.For water retaining structures, the mix shall also

result in water-tight concrete.The Contractor shall exercise great care while designing the

concrete mix and executing the works to achieve the desired result.

Unless otherwise specifically mentioned, the minimum cement content for Design Mix

Concrete shall be as given below.

GradeofConcrete MinimumCementContentin

Kg/Cu.mof concrete

The minimum cement content stipulated above shall be adopted irrespective of whether the

Contractor achieves the desired strength with less quantity of cement.The Contractor’s

quoted rates for concrete shall provide for the above eventually and nothing extra shall

become payable to the Contractor in this account.Even in the case where the quantity of

cement required is higher than that specified above to achieve desired strength based on an

approved mix design, nothing extra shall become payable to the Contractor.

It shall be Contractor’s sole responsibility to carry out the mix designs at his own cost.He

shall furnish to Engineer at least 30 days before concreting operations, a statement of

proportions proposed to be used for the various concrete mixes and the strength results

obtained.The strength requirements of the concrete mixes ascertained on 150 mm cubes as

per IS : 516 shall comply with the requirements of IS :

Gradeof Concrete MinimumCompressive Specified compressive

Strength strength

(N/Sq.mmat7days) (N/Sq.mmat28days)

A range of slumps, which shall generally be used for various types of construction unless

otherwise instructed by the Engineer is given below :

Structure/Member

Slumpinmillimeters

Maximum Minimum

Reinforcedfoundationwallsandfootings 75

Plainfootings,caissonsandsubstructure walls 75

T.G.andmassivecompressor foundations 50

Slabs,beamsandreinforcedwalls 100

Pumpsandmiscellaneousequipmentfoundations 75

Buildingcolumns 100

Heavymassconstruction 50

BatchingandMixingof Concrete

Proportions of aggregates and cement, as decided by the concrete mix design, shall be by

weight.These proportions shall be maintained during subsequent concrete batching bymeans

of weigh batchers capable of controlling the weights within one percent of the desired value.

Amount of water added shall be such as to produce dense concrete of required consistency,

specified strength and satisfactory workability and shall be so adjusted to account for

moisture content in the aggregates.Water cement ratio specified shall be maintained.Each

time the work stops, the mixer shall be cleaned out, and while recommencing, the first batch

shall have 10% additional cement to allow for sticking in the drum.

Arrangement should be made by Contractor to have the cubes tested in an approved

laboratory or in field at his own expense, with prior consent of Engineer.Sampling and

testingofstrengthandworkabilityof concreteshall beasper IS: 1199,IS: 516andIS:

NominalMixConcrete

MixDesignandTesting

Mix design and preliminary tests are not necessary for Nominal mix Concrete.However

works tests shall be carried out as per IS : 456.Proportions for Nominal Mix Concrete and

water / cement ratio may by adopted as per Table 3 of IS : 456. However it will be

Contractor’s sole responsibility to adopt appropriate nominal mix proportions to yield the

specified strength.

BatchingandMixingConcrete

Basedontheadoptednominalmixes,aggregatesandcementshallbemeasuredbyweight.

Formworkshall be all inclusive and shall consist of but notlimitedto shores, bracings, sides of

footings, walls, beams and columns, bottom of slabs etc. including ties, anchors, hangers,

inserts, falsework, wedges etc.

The design and engineering of the formwork as well as its construction shall be the

responsibility of Contractor.However, if so desired by Engineer the drawings and

calculations for the design of the formwork shall be submitted to Engineer for approval.

Formworkshallbedesignedtofulfillthefollowingrequirements:

a) Sufficiently rigid and tight to prevent loss of grout or mortar from the concrete at all

stages and appropriate to the methods of placing and compacting.

b) Madeofsuitablematerials.

c) Capable of providing concrete of the correct shape and surface finish within the

specified tolerance limits.

d) Capable of withstanding without deflection the worst combination of self weight,

reinforcement and concrete weight, all loads and dynamic effects arising from

construction and compacting activities, wind and weather forces.

e) Capableofeasilystrikingwithoutshock,disturbanceordamagetothe concrete.

f) Soffitformscapableofimpartingacamberifrequired.

g) Soffitformsandsupportscapableofbeingleftinpositionifrequired.

h) Capable of being cleaned and / or coated if necessary immediately prior to castingthe

concrete; design temporary openings where necessary for these purposes and to

facilitate the preparation of construction joints.

The formwork maybe of timber, plywood, steel, plastic or concrete dependingupon the type

of finish specified.Sliding forms and slip for may be used with the approval of Engineer.

Timber for formwork shall be well seasoned, free from sap, shakes, loose knots, work holes,

warps and other surface defects.Joints between formwork and formwork and between

formwork and structures shall be sufficiently tight to prevent loss of slurry from concrete,

using seals if necessary.

The faces of formwork coming in contact with concrete shall be cleaned and two coats of

approved mould oil applied before fixing reinforcement.All rubbish, particularly chippings,

shavings, sawdust, wire pieces dust etc. shall be removed from the interior of the forms

before the concrete is placed.Where directed, cleaning of forms shall be done by blasting

with a jet of compressed air at no extra cost.

Formsintendedfor reuseshall betreatedwithcare.Formsthat havedeterioratedshall not be

used.Before reuse, all forms shall be thoroughly scraped, cleaned, nails removed, holes

suitably plugged, joints repaired and warped lumber replaced to the satisfaction of Engineer.

The Contractor shall equip himself with enough shuttering to allow for wastage so as to

complete the job in time.

Permanent formwork shall be checked for its durability and capability with adjoining

concrete before it is used in the structure.It shall be properly anchored to the concrete.

Wire ties passing through beams, columns and walls shall not be allowed.In their placed

bolts passing through sleeves shall be used.Formwork spacers left in situ shall not impair the

desired appearance or durability of the structure by causing spalling, rust staining or allowing

the passage or moisture.

For liquid retainingstructures sleeves shall not be providedforthrough bolts orshallthrough

bolts be removed if provided.The bolts, in the latter case, shall be cut at 25 mm depth from

the surface and the hole made good by cement mortar of the same proportion as the concrete

just after striking the formwork.

Where specified or shown on drawings, all corners and angles exposed in the finished

structure shall have chamfers or fillets of 20 mm x 20 mm size.

Forms for substructure may be omitted when, in the opinion of Engineer, the

openexcavationisfirmenough (in hard non-porous soils)toactasaform.Suchexcavationsshall be

slightly larger, as directed by Engineer, than that required as per drawing to compensate for

irregularities in excavation.

The Contractor shall provide adequate props carried down to a firm bearing without

overloading any of the structures.

The shuttering for beams and slabs shall be so erected that the side shuttering of beams canbe

removed without disturbing the bottom shuttering.If the shuttering for a column is erected for

the full height of the column, one side shall be built up in sections as placing of concrete

proceeds or windows left for placing concrete from the side limit the drop of concrete to

m or as directed by Engineer.The Contractor shall temporarily and securely fix items to be

cast in (embedments / inserts) in a manner that will not hinder the striking of forms or permit

Formwork showing excessive distortion, during any stage of construction, shall be

repositioned and strengthened.Placed concrete affected by faulty form work, shall be entirely

removed and formwork corrected prior to placement of new concrete at the cost of the

Thestrikingtimeforformworkshallbedeterminedbasedonfollowingrequirements:

a) Developmentofadequateconcretestrength;

b) Permissibledeflectionattimeofstrikingformwork;

c) Curingprocedureemployed–itsefficiencyandeffectiveness;

d) Subsequentsurfacetreatmenttobe done;

e) Preventionofthermalcrackingatre-entrantangles;

f) Ambienttemperature;and

g) Aggressivenessoftheenvironment(unlessimmediateadequatestepsaretakento prevent

damage to the concrete).

Under normal circumstances (generallywhere temperatures are above 20 Deg. C) forms may

be struck after expiry of the time period given in IS : 456, unless directed otherwise by

Engineer. For portland pozzolona / slag cement the stripping time shall be suitably modified

as directed by the Engineer.It is the Contractor’s responsibility to ensure that forms are not

struck until the concrete has developed sufficient strength to support itself, does not undergo

excessive deformation and resist surface damage and any stressed arising during the

construction period.

ReinforcementWorkmanship

Reinforcing bars supplied bent or in coils shall be straightened cold without damage at no

extra cost.No bending shall be done when ambient temperature is below 5 Deg. C.Local

warming may be permitted if steel is kept below 100 Deg. C.

All bars shall be accurately bent gradually and according to the sizes and shapes shown onthe

drawings / schedules or as directed by Engineer.

Re-bending or straightening incorrectly bent bars shall not be done without approval of

Reinforcement shall be accurately fixed and maintained firmly in the correct position by the

use of blocks, spacers, chairs, binding wire etc. to prevent displacement during placing and

compactionof concrete.The tiedinplace reinforcement shall be approvedbyEngineer prior to

concrete placement.Spacers shall be of such materials and designs as will be durable, not

lead to corrosion of the reinforcement and not cause spalling of the concrete cover.

Binding wire shall be 16 gauge soft annealed wire.Ends of the binding wire shall be bent

away from the concrete surface and in no case encroach into the concrete cover.

Substitution of reinforcement, laps / splices not shown on drawing shall be subject to

Engineer’s approval.

Tolerance for formed and concrete dimensions shall be as per IS : 456 unless specified

Tolerances specified for horizontal or vertical building lines or footings shall not beconstrued

to permit encroachment beyond the legal boundaries.

PREPARATIONPRIORTOCONCRETEPLACEMENT

Before concrete is actually placed in position, the inside of the formwork shall be cleanedand

mould oil applied, inserts and reinforcement shall be correctly positioned and securely held,

necessary openings, pockets etc. provided.

All arrangements formwork, equipment and proposed procedure, shall be approved by

Engineer.The Contractor shall maintain separate Pour Card for each pour as per the

format enclosed and shall produce before commencement of concreting to Engineer-in-

TRANSPORTING,PLACINGANDCOMPACTINGCONCRETE

Concrete shall be transported from the mixing plant to the formwork with minimum time

lapse by methods that shall maintain the required workability and will prevent segregation,

loss of any ingredients or ingress of foreign matter or water.

In all cases concrete shall be deposited as nearly as practicable directly in its final position.

To avoid segregation concrete shall not be rehandled or caused to flow.For locations where

direct placement is not possible and in narrow forms.The Contractor shall provide suitable

drops and ‘Elephant Trunks’.Concrete shall not be dropped from a height of more than 1.0 m

as stipulated in clause D.6.8.13.

Concrete shall not be placed in flowing water.Under water, concrete shall be placed in

position by tremies or by pipeline from the mixer and shall never be allowed to fall freely

through the water.

While placing concrete the Contractor shall proceed as specified below and also ensure the

a) Continuouslybetweenconstructionjointsandpredeterminedabutments.

b) Withoutdisturbancetoformsor reinforcement.

c) Without disturbance to pipes, ducts, fixings and the like to be cast in; ensure thatsuch

items are securely fixed.Ensure that concrete cannot enter open ends of pipes and

d) Withoutdroppinginamannerthatcouldcausesegregationorshock.

e) In deep pours only when the concrete and formwork designed for this purpose andby

using suitable chutes or pipes.

f) Donotplaceiftheworkabilityissuchthatfullcompactioncannotbe achieved.

g) Without disturbing the unsupported sides of excavations; prevent contamination of

concrete with earth.Provide sheeting if necessary.In supported excavations, withdraw

the lining progressively as concrete is placed.

h) If placed directly onto hardcore or any other porous material, dampen the surface to

reduce loss of water from the concrete.

i) Ensurethatthereisnodamageordisplacementtosheetmembranes.

j) Recordthetimeandlocationofplacingstructural concrete.

Concrete shall normally be compacted in its final position within thirty minutes of leavingthe

mixer.Concrete shall be compacted during placing with approved vibrating equipment

without causing segregation until it forms a solid mass free from voids thoroughly worked

around reinforcement and embedded fixtures and into all corners of the formwork.Immersion

vibrators shall be inserted vertically at points not more than 450 mm apart and withdrawn

slowly till air bubbles cease to come to surface, leaving no voids.When placing concrete in

layers advancing horizontally, care shall be taken to ensure adequate vibration, blending and

melding of the concrete between successive layers.Vibrators shall not be allowed to come in

contact with reinforcement, formwork and finished surfaces after start of initial set.Over

vibration shall be avoided.

Concrete may be conveyed and placed by mechanically operated equipment after getting the

complete procedure approved by Engineer.The slump shall be held to the minimum

necessary for conveying concrete by this method.When concrete is to be pumped concrete

mix shall be specially designed to suit pumping.Care shall be taken to avoid stoppages in

work once pumping has started.

Except when placing with slip forms, each placement of concrete in multiple lift work, shall

be allowed to set for at least 24 hours after the final set of concrete before the start of

subsequent placement.Placing shall stop when concrete reaches the top of the opening in

wallsor bottomsurfaceofslab,in slabandbeamconstruction,anditshall be resumed before

concrete takes initial set but not until it has had time to settle as determined by Engineer.

Concrete shall be protected against damage until final acceptance.

MASSCONCRETE WORKS

Sequence of pouring for mass concrete works shall be as approved by Engineer.The

Contractor shall exercise great care to prevent shrinkage cracks and shall monitor the

temperature of the placed concrete if directed.

Curing and protection shall start immediately after the compaction of the concrete to protect

(a) prematuredryingout,particularlybysolarradiationand wind;

(b) leachingoutbyrainandflowingwater;

(c) rapidcoolingduringthefirstfewdaysafterplacing;

(d) highinternalthermal gradients;

(e) lowtemperatureof frost;

(f) vibration and impact which may disrupt the concrete and interfere with its bond to the

All concrete, unless directed otherwise by Engineer, shall be cured by use of continuossprays

or ponded water or continuously saturated coverings of sacking, canvas, hessain or other

absorbent material for the period of complete hydration with a minimum of 7 days.The

quality of curing water shall be the same as that used for mixing.

Where a curing membrane is directed to be used by the Engineer, the same shall be of a non-

wax baseandshall not impair theconcretefinishin any manner.Thecuringcompoundtobe used

shall be got approved from the Engineer before use and shall be applied with spraying

equipment capable of a smooth, even textured coat.

Curing may also be done by covering the surface with an impermeable material such as

polyethylene, which shall be well sealed and fastened.

Extraprecautionsshallbeexercisedincuringconcreteduringcoldandhotweather.

CONSTRUCTIONJOINTSANDKEYS

Construction joints will be as shown on the drawing or as approved by Engineer.Concrete

shall be placed without interruption until completion of work between construction joints.If

stopping of concreting becomes unavoidable anywhere, a properly formed construction joint

shall be made with the approved of Engineer.

Dowels for concrete work, not likely to be taken up in the near future, shall be coated with

cement slurry and encased in lean concrete as indicated on the drawings or as directed by

Before resuming concreting on a surface which has hardened all laitance and loose stoneshall

be thoroughly removed by wire brushing / hacking and surface washed with high pressure

water jet and treated with thin layer of cement slurryfor vertical joints and a 15 mm thick

layer of cement sand mortar for horizontal layers, the ratio of cement and sand beingthe same

as in the concrete mix.

When concreting is to be resumed on a surface which has not fully hardened, all laitanceshall

be removed by wire brushing, the surface wetted, free water removed and a coat of cement

slurry applied.On this a layer of concrete not exceeding 150 mm thickness shall be placed

and well rammed against the old work.Thereafter work shall proceed in the normal way.

FOUNDATIONBEDDING

All earth surfaces upon which or against which concrete is to be placed, shall be well

compactedandfreefromstandingwater,mudor debris.Soft or spongyareashallbecleaned out and

backfilled with either soil cement mixture, lean concrete or clean sand compacted as directed

by Engineer.The surfaces of absorptive soils shall be moistened.

Concrete shall not be deposited on large slopingrocksurfaces.The rockshall becut to form

rough steps or benches by picking, barring or wedging.The rock surface shall be kept wet for

2 to 4 hours before concreting.

The formwork for concrete works shall be such as to give the finish as specified.The

Contractors shall make good as directed any unavoidable defects consistent with the type of

concrete and finish specified; defects due to bad workmanship (e.g. damaged or misaligned

forms, defective or poorly compacted concrete) will not be accepted.The Contractor shall

construct the formwork using the correct materials and to meet the requirements of thedesign

and to produce finished concrete to required dimensions, plumbs, planes and finishes.

SurfacefinishTypeF1

This type of finish shall be for non-exposed concrete surface against which back fill or

concrete is to be placed.The main requirement is that of dense, well compacted concrete.No

treatment is required except repair of defective areas, filling all form tie holes and cleaning

up of loose or adhering debris.For surfaces below grade which will receive waterproofing

treatment the concrete shall be free of surface irregularities which could interfere with proper

and effective application or waterproofing material specified for use.

SurfacefinishTypeF2

This type of finish shall be for all concrete work which will be exposed to view upon

completion of the job.The appearance shall be that of a smooth dense, well-compacted

concrete showing the slight marks of well fitted shutteringjoints.The Contractor shall make

good any blemishes.

SurfacefinishTypeF3

This type of finish shall be for concrete work which will be exposed to view but to give an

appearance of smooth, dense, well-compacted concrete with no shutter marks, stain free and

with no discoloration, blemishes, arrises, air holes etc.Only lined or coated plywood with

very tight joints shall be used to achieve this finish.The panel size shall be uniform and as

large as practicable.Any minor blemishes that might occur shall be made good by Contractor.

Integralcementfinishonconcretefloor

In all cases where integral cement finish on a concrete floor has been specified, the top layer

of concrete shall be screened off to proper level and tamped with tamper having conical

projections so that the aggregate shall be forced below the surface.The surface shall be

finishedwithawoodenfloatandatrowelwithpressure.Thefinishshallbecontinuedtillthe concrete

reaches its initial set.No cement or cement mortar finish shall be provided on the

surface.Wherespecified,afloorhardenerasapprovedbytheEngineershallbesuppliedand used as

recommended by the manufacturer.

REPAIRANDREPLACEMENTOFUNSATISFACTORYCONCRETE

Immediately after the shuttering is removed, all the defective areas such as honey-combed

surfaces, rough patches, holes left by form bolts etc. shall be brought to the notice of

Engineer who may permit patching of the defective areas or reject the concrete work.

All through holes for shuttering shall be filled for full depth and neatly plugged flush with

Rejected concrete shall be removed and replaced by Contractor at no additional cost toClient.

For patching of defective areas all loose materials shall be removed and the surface shall be

prepared as directed by the Engineer.

Bonding between hardened and fresh concrete shall be done either by placing cement mortar

or byapplyingepoxy.Thedecisionof theEngineer astothemethodof repairstobeadopted shall be

final and binding on the Contractor and no extra claim shall be entertained on this

account.The surface shall be saturated with water for 24 hours before patching is done with

1:5 cement sand mortar.The use of epoxy for bonding fresh concrete shall be carried out as

directed by Engineer.

HOTWEATHERREQUIREMENTS

Concretingduringhot weathersshallbecarriedoutasperIS: 7861(Part–I)

Adequate provisions shallbe made to lower concrete temperatures which shall not exceed

Deg. C at the time of placement of fresh concrete.

Where directed by Engineer, Contractor shall spray non-wax based curing compound of

unformed concrete surfaces at no extra costs.

COLDWEATHERREQUIREMENTS

ConcretingduringcoldweathershallbecarriedoutasperIS:7861(Part-II).

The ambient temperature during placement and upto final set shall not fall below 5 Deg. C.

Approved antifreeze / accelerating additives shall be used where directed.

For major and large scale concreting works the temperature of concrete at times of mixing

and placing, the thermal conductivity of the formwork and its insulation and stripping period

shall be closely monitored.

LIQUIDRETAININGSTRUCTURES

TheContractor shalltake specialcare ofconcreteforliquidretainingstructures,underground

structures and those others specifically called for to guarantee the finish and water tightness.

Theminimumlevel of surfacefinishfor liquidretainingstructuresshall betypeF2.All such

structures shall be hydro-tested.

The Contractor shall include in his price of hydro-testing of structure, all arrangements for

testing such as temporary bulk heads, pressure gauges, pumps, pipelines etc.

Any temporary arrangements that may have to be made to ensure stability of the structures

shall also be considered to have been taken into account while quoting the rates.

Any leakage that may occur during the hydro-test or subsequently during the defects liability

period or the period for which the structure is guaranteed shall be effectively stopped either

by cement / epoxy pressure grouting, guniting or such other methods as may be approved by

the Engineer.All such rectification of the Client / Engineer at no extra cost to the Client.

TESTINGCONCRETESTRUCTURESFORLEAKAGE

Hydro-static test for water tightness shall be done at full storage by Engineer, as described

In case of structures whose external faces are exposed, such as elevated tanks, the

requirements of the test shall be deemed to be satisfied if the external faces show no sign of

leakage or sweating and remain completely dry during the period of observation of seven

days after allowing a seven day period for absorption after filling with water.

In the case of structures whose external faces are submerged and are not accessible for

inspection, such as underground tanks, the structures shall be filled with water and after the

expiry of seven days after the filling, the level of the surface of the water shall be recorded.