Construction of 30000 Litres capacity OHT Over Head Tank of 12 m. staging height at Periyar Nagar in Keeramangalam Town Panchayat

Amount

Earth work excavation for foundation and depositing on bank with initial lead of 10 m and lift of 2 m in hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravely stoney earth and earth mixed with small sized boulders and hard gravelly soil including shoring, strutting, bailing out water wherever necessary and all other incidental charges and as directed by the Officers.

First depth

second depth

Filling the basement with river sand including consolidating etc. complete.

Cement concrete 1:4:8 (One cement, four sand and eight course aggregate of 40 mm size hard blue granite broken stone) for levelling course including the cost of mixing, placing the concrete in position, consolidating finishing the ends complete and curing etc. complete and as directed by the Officers for works beyond 1.50 m from GL for footing.

R.C.C. 1 : 11/2 : 3 (One Cement one point five sand three aggregates) using 20mm gauge hard Granite broken stone jelly including cost curing, etc., complete as per standard specification and as directed by Engineer incharge.

Below 1.50 m. from GL.

Upto GL.

Above GL. and upto 4.50 m. ht.

Above 4.50 m. and upto 7.32 m. ht. from GL.

Above 7.32 m. and upto 10.98 m. ht. from GL.

Above 10.98 m. and upto 14.64 m. ht. from GL.

Above 14.64 m. and upto 18.30 m. ht. from GL.

Centering for soffits of RCC members or plane surfaces including shuttering, strutting to centering and providing supports etc complete for the following members using MS sheets of size 90 cm x 60 cm BG 10 gauge stiffened with welded M.S. angles of size 25x25x3mm laid over silver oak (country wood) joist of size 10x6.5 cm (spaced @ about 90 cm c/c) and supported by casurina props of 10 to 13 cm dia (spaced at 75 cm c/c) and as directed by the officers.

Square surface:

Columns below GL and above GL. upto 3.30 m. ht.

Columns above 3.30 m. to 4.30 m. ht. from GL.

Columns above 4.30 m. upto 5.30 m. ht. from GL.

Columns above 5.30 m. upto 6.30 m. ht. from GL.

Columns above 6.30 m. upto 7.30 m. ht. from GL.

Columns above 7.30 m. upto 8.30 m. ht. from GL.

Columns above 8.30 m. upto 9.30 m. ht. from GL.

Columns above 9.30 m. upto 10.30 m. ht. from GL.

Columns above 10.30 m. upto 11.30 m. ht. from GL.

Columns above 11.30 m. upto 11.46 m. ht. from GL.

Plane Surface:

Below GL. and upto 3.30 m. height above GL.

From 5.30 m. to 6.30 m. ht. above GL.

From 8.30 m. to 9.30 m. ht. above GL.

From 11.30 m. to 12.30 m. ht. above GL.

Curved Surface:

Upto 3.30 m. height. (From Floor slab).

Supplying, fabricating and placing in position of RTS rods for reinforcement for various members including cost of steel and binding wire for all RCC works as directed by the officers.

Painting two coats with approved cement paint best quality over the plastered surface including cleaning, preparing the surface, curing etc. complete. The quality, shade / colour of paint shall be got approved by the Executive Engineer.

Supplying and fixing in position of cut stone set in C.M. 1:3 using well dressed cut stone supporting inlet pipe inside the tank and as directed by the officers.

Supply, delivery and fixing of pipes for OHT connections including civil works.

For Inlet arrangements.

80 mm GI pipes.

80 mm GI coupling.

80 mm GI Bend.

80 mm GI Flange set.

90 mm PVC Threaded coupler.

For Outlet arrangements.

80 mm GI pipes.

80 mm GI coupling.

80 mm GI Bend.

80 mm GI Flange set.

80 mm GM Gate valve.

90 mm PVC Threaded coupler.

For Scour arrangements.

80 mm GI pipes.

80 mm GI coupling.

80 mm GI Bend.

80 mm GI Flange set.

80 mm GM Gate valve.

90 mm PVC Threaded coupler.

For Over flow arrangements.

80 mm GI pipes.

80 mm GI coupling.

80 mm GI Bend.

80 mm GI Flange set.

90 mm PVC Threaded coupler.

Rubber insertion sheet.

Bolt and nuts.

Labour charges.

80 mm GI pipe - Cutting.

80 mm GI pipe - Threading.

Labour charges for lifting, positioning G.I pipes in vertical direction and providing interconnection with service reservoir.

Fabrication, supply, delivery and fixing of outside MS ladder of 45 cm clear wide made out of 50mm x 50mm x 6mm MS angle for both sides and for steps @ 30 cm c/c welded joint etc. for 1st staging from GL to 1st level brace (weight 4.50 kg/m) 2nd and 3rd staging upto floor slab and 4th staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from 1st stage to 4th stage. RCC M30 Grade mix for landing slabs - 5 Nos. (ground level - 1 No. and above GL - 4 Nos.). Supply and fixing of 32 mm GI pipes medium for hand rails for the landing slab. Supplying and fixing of MS base plate of 100mm x 100mm x 6mm thick for Anchor fastener bolt for fixing of hand rails at landing slab and MS ladder, providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved type design and as directed by the officers.

Supply, delivery and fixing in position of CI man hole cover and frame of size 60 x 60 cm on roof slab and as directed by the officers. The manhole frame and cover should be of light duty and conforming to IS 1726 / 1974.

Supply, delivery and fixing in position of 150 mm dia. AC ventilators on the roof slab and as directed by the officers.

Painting emblem and writing slogans and details of scheme on the exposed surface of SR side wall in approved colour and paint as directed by the officers including cost of paint, brush, scaffolding etc., complete.

Refilling the foundation for service reservoir with excavated earth (other than sand) in layers of 15 cm thick well rammed, watering and consolidating etc. complete complying with standard specifications as directed by the Officers.

RCC 1:1.5:3 (One cement, one and half sand and three 20 mm size HBG stone) for the RCC inside ladder including the cost of reinforcement fabrication centering and shuttering, cost of mixing placing of concrete vibrating curing, finishing etc. complete including fixing of RCC Ladder etc., complete as directed by the officers

SRI POLINCHI AND CO