Construction of 100000 litre Capacity OHT at Thirupuvanam Head works - Retender (II call)

Amount

Earth work excavation and depositing on bank with initial lead 10m and lift of 2.0m in the following classification of all soils, bailing out water wherever necessary including providing danger lights etc., and as directed as per specification SS 20B

First depth of 2m

Second depth of 2m in HR/DMR NOT REQUIRING BLASTING

Supply and filling for foundation with M. sand including consolidation ramming etc. complete as per standard specifications and as directed by the Engineer-incharge

Plain Cement concrete 1:4:8 (one cement, four sand and eight course aggregate of 40mm size hard blue granite broken stone) for levelling course for foundation including the cost of mixing, placing the concrete in position, consolidating finishing

Providing and laying in position Standardised Concrete Mix M-30 Grade in accordance with IS 456 - 2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement contenet of 400Kg/ cum and maximum water cement ratio of 0.45 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone sand (M- Sand) but excluding cost of reinforcement grill and fabricating charges centering and shuttering but 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 cost 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 requiremnents of IS standards.

Below 1.50m to 4.50m depth from G.L

Below G.L upto 1.50m depth

Above G.L upto 4.50m height

Above 4.50m to 7.32m ht., from G.L

Above 7.32m to 10.98m ht., from G.L

Above 10.98m to 14.64m ht., from G.L

Above 14.64m to 18.30m ht., from G.L

Above 18.30m to 21.96m ht., from G.L

Centering for soffits of reinforced cement concrete slabs or plain surface including strutting upto 3m ht., using MS sheet of size 90cm x 60cm and BG. 10 gauge stiffened with welded MS angles of size 25mm x 2mm x 3mm laid over silver oak (country wood)

Upto 3.30m ht., from G.L

From 3.30m to 4.30m ht.

From7.30m ht., to 8.30m ht.

From11.30m ht., to 12.30m ht.

From 15.30m to 16.30m ht.

Centering for square column - upto 3.30m ht.

From 3.30m to 4.30m ht.,

From 4.30m to 5.30m ht.,

From 5.30m to 6.30m ht.,

From 6.30m to 7.30m ht.,

From 7.30m to 8.30m ht.,

From 8.30m ht., to 9.30m ht.,

From 9.30m ht., to 10.30m ht.,

From 10.30m ht., to 11.30m ht.,

From 11.30m ht., to 12.30m ht.,

From 12.30m ht., to 13.30m ht.,

From 13.30m ht., to 14.30m ht.,

From 14.30m ht., to 15.30m ht.,

Centering for curved surface From 14.30m to 15.30m ht., from G.L

From 15.30m to 16.30m ht., from G.L

Centering for circular column upto 3.30m ht.,

Centering for circular column upto 3.30m ht., from floor level

From 3.30m to 4.30m ht.,

From 4.3m to 5.3m ht.,

From 5.3m to 6.3m ht.,

From 6.3m to 7.3m ht.,

From 7.3m to 8.3m ht.,

From 8.3m to 9.3m ht.,

From 9.3m to 10.3m ht.,

From 10.3m to 11.30m ht.,

From 11.3m to 12.30m ht.,

From 12.3m to 13.30m ht.,

From 13.3m to 14.30m ht.,

From 14.3m to 15.30m ht.,

Supplying, fabricating and placing in position of RTS grills for reinforcement for various members including cost of steel for all RCC works etc., complete as per standard specifications and as directed by Engineer-in-charge. The rate to include the cost

Painting two coats with approved cement paint best quality over the outer wall surface including cost of cement paint etc. complete complying with standard specification etc., complete as per standard specifications and as directed by Engineer-in-charge

Providing Cut stone set in CM 1:3 (one cement and three sand) using well dressed cut stone supporting inlet pipe of size 0.30 x 0.30 x 0.15m for service reservoir etc., complete as per standard specifications and as directed by Engineer-in-charge

|Supplying and fixing in position of RCC (1:1.5:3) in side access lader of following size using 20mm size HBS jelly including cost of all materials, centring, shuttering,strutting,reinforcement, finishing, curing etc.,complete and as directed by TWAD Board Officers. - 3.95 m ht

Construction of RCC spiral staircase in RCC 1:1.5:3 (1 Cement : 1.5 Sand : 3 Coarse Aggregate) using 20 mm HBGS of 1.80 m diameter of required height for approach to the roof of Service Reservoir with RCC Handrails including earthwork excavation, providing CC 1:4:8 mix, RCC footing 1:1.5:3 mix, GL platform etc., and also including cost of steel reinforcement, fabrication charges, scaffolding, centering, precasting charges, cement, painting etc. complete as per standard specifications and as directed by Engineer. The staircase shall be braced to the column of service reservoir at suitable interval. (in the BOQ, quantity column the exact height to be mentioned from GL to roof slab bottom to get total value of work to be done.

Supplying and fixing in position of 0.60 x 0.60m water tight CI manhole frame and cove of approved pattern at the roof slab and as directed. The manhole frame and cover should be of light duty and confirming to IS: 1726-1974

Supply and fixing in position of enamel water level indicator with all accessories of approved pattern and design etc., complete as per standard specifications and as directed by Engineer-in-charge

Supplying and fixing of RCC 1:1.5:3 (1 Cement : 1.5 Sand : 3 Coarse Aggregate) using 20 mm HBGS for RCC Handrails of 0.91 m height over the top of roof slab of approved pattern and design including the cost of reinforcement, centering, precasting, finishing

Providing and fixing of RCC 1:1.5:3 (1 Cement : 1.5 Sand : 3 Coarse Aggregate) of 20mm size hard blue granite broken stone) for ventilators of approved pattern including cost of cement, reinforcement, centering, shuttering, strutting etc., complete - 0.30 m dia

Painting the TWAD Board Emblem and |writing the slogon in accordance with size and specifications as approved by the TWAD Board Officers with approved colour and quality of paint on the exterior surface of Service Board Officers.complete etc., and as directed by TWAD Reservoir

Supply and Delivery of the following size CI pipes 4.1 C.I D/F PIPES( B Class) AS PER IS 7181/1986 & IS 1537/1996 including all cost etc., complete

Supply and Delivery of CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1993 including all cost etc., complete

LALITHAMANI (BID ID -1101414)