Supply and Relaying of DI 150 mm Pipe line from Perumandi junction to Vadakudiyan Pumping Station in Kumbakonam City Municipal Corporation.

Amount

Labour for cutting open B.T/CC road for laying water mains or sewer including cost and conveyance of all charges etc., complete as per standard specifications..

Earth work excavation and depositing on bank with initial lead of 10 M and lift of 2 M in narrow trenches for laying of pipes for water supply and sewerage works in hard stiff clay,stiff black cotton,stoney earth and earth mixed withsmall size boulders and hard gravelly soil as directed by departmentel officers as per SS20B. Page - 307

Supplying and Filling in foundation and basement with Filling M-Sand in layers of not more than 15cm thick well rammed,watered consolidated including cost and conveyance of materials and labour charges etc., complete as per Standard Specification and as directed by departmental Engineers(TNBP No.24&25).

DI Air Valve Manufacture, Supply and Delivery of DI D/F Slanted seat Swing Check Valve. Body of ductile cast iron of Grade GGG 40 or equivalent grade and disc of ductile cast iron GGG 40 or equivalent grade with fully encapsulated EPDM rubber, where both faces can be used. Electrostatic epoxy powder/liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy Powder should be approved by W 270. (EP-P) it is a resi-coat powder approved for drinking water application, applied through fusion bonding process by dipping the shot-blasted casted components heated up to 200 deg C). Face to face dimensions as per EN558-1 page 75

C.I. SPUN PIPES AS PER IS 1536/2001 Amendment No.3.July 2008 Page - 38

Lowering of C.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.. Page - 270

C.I D/F PIPES AS PER IS 7181/1986 & IS 1537/1996 P- 40

CONVEYANCE 1) Rates for Conveyance of C.I/G.I/D.I. Pipes and Specials Over 125 mm up to 200 mm page - 249

Refilling with excavated sand complying with standard specification for filling in foundation and basement. etc ., complete complying with standard specifications. Page - 307

Plain Cement concrete of mix 1:4:8 (One cement two sand and four aggregates) using 20mm gauge hard broken including cost conveyance of all materials to site including labour charges, transporting and placing in position including shoring, strutting forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. by the TWAD Board Officers.

Plain Cement concrete of mix 1:2:4 (One cement two sand and four aggregates) using 20mm gauge hard broken including cost conveyance of all materials to site including labour charges, transporting and placing in position including shoring, strutting forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. by the TWAD Board Officers.

Utility Charges 3% of the estimate value

Selva Construction (BID ID -1086856)