Prevention of Dust from Wind Barrier at Manikpur OCP of Korba Area. (Retender)

“Providing, driving with hydraulic piling rigs with power units and installing driven cast-in-situ reinforced cement concrete piles of grade M-25 of specified diameter and length below the pile cap, to carry safe working load not less than specified, excluding the cost of steel reinforcement but including the cost of shoe and the length of pile to be embedded in the pile cap etc. all complete. (Length of pile for payment shall be measured from top of shoe to the bottom of pile cap) : 450 mm dia piles.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering – All work up to plinth level: 1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources).

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work, using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland / Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate/retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. – All works up to plinth level – Concrete of M25 grade with minimum cement content of 330 kg/cum.

Centering and shuttering including strutting, propping etc. and removal of form work for: Foundations, footings, bases for columns.

Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position, and binding all complete up to plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more.

Supplying, fabricating and erecting welded and/or bolted steel work in built‑up sections, trusses and frames for steel structures other than bridge girders, using RS joists, angles and channels, including gussets, plates, nuts, bolts etc., with contractor’s own steel, including cutting, hoisting, fixing, riveting, welding, bolting etc., with providing fittings wherever required as per approved drawing including applying one coat of approved steel primer with contractor’s materials, labour, tools, plants, lead & lift complete as per specification and as directed by Engineer‑in‑charge. Note: The payment shall be made on the theoretical weight of main components and gusset plates only.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50mm (base metal of minimum 0.45mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS:277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in- charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Total impact of GST for the purpose of CTC