Tirruppur district uthukuli block mines and minerals 2024-25

Earth work excavation in all types of strata for laying pipeline in respect of following size of pipe with standard trench width and required depth including shoring, struting, baling out water wherever necessary and all other incidental works such as barricading, providing danger lights, labour for watch and ward, as directed by the TWAD Board officers. 200mm DI K7 pipe

Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers and as directed by TWAD Board Officers. 200mm DI K7 pipe

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) 200mm DI K7 pipe

Refilling the trenches with excavated earth other than sand complying with std specification and as directed by TWAD Board Officers 200mm DI K7 pipe

Supply and delivery of centrifugaly cast (spun) Ductile Iron pipes to the site of work confirming to IS 8329/2000 with inside lining with cement mortor of standard thickness and specifications and outside coating of Metalic Zinc as per IS specifications. The cost of pipes should include loading, freight, transit insurance, incidental charges, packing, taxes and transportation charges to stack yard in good condition etc., complete (the cost excluding unloading from lorries at stack yard and stacking which will be paid seperately) and as directed by the TWAD Board officers. 200mm DI K7 pipe

Supply and delivery of DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warrenty and as directed by the TWAD Board Officers. 200mm

WAFER TYPE (DUAL PLATE CHECK VALVE) CONFORMING TO IS AND WITH 5 YEARS WARRANTY

Ductile Iron Class Pn10 Flanged Pipes As Per IS 8329/2000 (1 m length of pipes) 200mm

Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty. 50mm

Supply and delivery of DI specials confirming to the relevant IS specification supplied at the site of work including loading, freight, unloading, stacking at site, transit insurance charges etc. complete and as directed by the TWAD Board officers - For Pumping mains and Valves as per IS 9523/2000 200x200x80 mm dia. DI D/S B/F Air valve tee-1 No.

Supply and delivery of DI D/F pipes and DI D/F speicals and S/S Specials 200 mm dia. Flanged Tail Piece (4Nos.x20Kg.)

200mmx200mm Equal Tee dia D.I-D/F Pipes and Specials

G.I. Specials As Per Is 1239/ PART II 80 mm x 50 mm GI Reducer (Medium) (WD-M0529)

G.I. PIPE 80mm

G.I. Pipe Reducer nipple 80mm

Sluice Valve PIT Earthwork excavation for foundation and depositing on bank within an initial lead of 10m and an initial lift of 2m for the following classification of soil including shoring, strutting,bailing out water wherever necessary and all other incidental charges

PCC 1:4:8, using 40mm size HBG stone for foundation including mixing, placing, ramming, curing and finishing etc. complete in accordance with the specification and as directed by the Officers.

Brick work using country bricks of size 83/4"x41/4"x23/4" in cement mortar 1:5 (One cement and five M.Sand) including curing neat finishing, etc., complete complying with standard specifiction.

Providing and laying in position, standardised concrete Mix M-20 Grade in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No separate payment will be made by the Department for the excess usage of materials).

Supplying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire in all heights etc. complete complying with standard specification and as directed by the Officers.

Plastering with CM 1:5 ,12mm thick for outside walls complying with standard specification and as directed by the Officers.

Providing PCC 1:2:4 for support block to valve

Fixing of valve in position and surface box fixing etc

AIR VALVE PIT Earthwork excavation for foundation and depositing on bank within an initial lead of 10m and an initial lift of 2m for the following classification of soil including shoring, strutting,bailing out water wherever necessary and all other incidental charges

PCC 1:4:8, using 40mm size HBG stone for foundation including mixing, placing, ramming, curing and finishing etc. complete in accordance with the specification and as directed by the Officers.

Brick work in CM 1:5 mix using country bricks of size 22cm x 11cm x 7cm for the following works including curing etc., complete complying with standard specification and as directed by the Officers.

Providing and laying in position, standardised concrete Mix M-20 Grade in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No separate payment will be made by the Department for the excess usage of materials).

Supplying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire in all heights etc. complete complying with standard specification and as directed by the Officers.

Plastering with CM 1:5 ,12mm thick for outside walls complying with standard specification and as directed by the Officers.

Providing PCC 1:2:4 for support block to valve

Fixing of valve in position and surface box fixing etc

Jointing the C.I/ D.I-S/S pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing. (including cost of jointing materials) 200mm dia C.I/ D.I-S/S Pipes and Specials

Jointing the C.I/ D.I double flanged pipes And specials with rubber insertion to with Is-638(1979) and M.S. Bolts and nuts Of IS 1364-1 (2002), including cost of Jointing materials such as bolt and nuts Rubber insertion and labour charges etc., Complete. 200 mm dia C.I/ D.I Double flanged pipes and specials

Threading GI pipes true to axis and filing the ends complete as directed by the TWAD Bd Officers 80 mm GI Pipes

50 mm GI Pipes

Conveyance of following DI pipes including, unloading from lorries at Stackyard and stacking properly and Loading in to Lorries at Stackyard, transportation charges up to 8km from stockyard and unloading from lorries at site/ along the alignment carefully as directed by the TWAD Board officers.

Provision for Name board charges

Provision for photo charges

GST Amount for providing Service to Government Contract Works for the above Construction & Maintenance Works. { GST Amount is the Total GST Amount for overall quoted amount (Both Construction and Maintenance) above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)