NIT 11 BCDH I HYD

Amount

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing :

a) 1:1½:3 (1 cement : 1½ coarse sand(zone-III) : 3 graded stone aggregate 20 mm nominal size).

Centering and shuttering including strutting, propping etc. and removal of form for :

a) Suspended floors, roofs, landings, balconies and access platform

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Disposal of cement concerete debries to dumping ground (lead about 15km) by mechanical transport, including bringing the materials to ground floor from terrace loading and unloading complete. (Net quantity with out voids will be measured for payment)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Structural steel work reveted , bolted or welded in build up sections , trusses and framed work, icluding cutting hoisting, fixing in position with galvanized steel sections consisting of Angles , flats, plates fabricated as per approved drawings in gratings, frames, raillings, cable trays, ladders, space frames and similar locations , The galvanizing shall be as per IS 4759 with average mass of zinc coating of 610 gm/Sqm (approximately 85 micron) . The steel sections shall be of M.S grade 'A' as per IS 2062. Cost of galvanization is inclusive. The payment shall be made as per the standard structura steel tables for the bare steel sectional weights . All compete as directed by the Engineer -in-charge.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :

Two or more coats on new work

Providing and fixing M.S 'U' clamps with nuts and bolts with plain washers etc., complete. - 16mm dia and 400mm long.

Structural steel work in built up Hot finished welded tubular ( round, square or rectangular hollow tubes etc.)or welded in build up sections , trusses and framed work, icluding cutting hoisting, fixing in position with galvanized steel sections consisting of Angles , flats, plates fabricated as per approved drawings in gratings, frames, raillings, cable trays, ladders, space frames and similar locations , The galvanizing shall be as per IS 4759 with average mass of zinc coating of 610 gm/Sqm (approximately 85 micron) . The steel sections shall be of M.S grade 'A' as per IS 2062. Cost of galvanization is inclusive. The payment shall be made as per the standard structura steel tables for the bare steel sectional weights . All compete as directed by the Engineer -in-charge.

Providing foundation for 9m Poles at terrace level with RCC 1:1.5:3 (1 Cement : 1.5 Coarse sand : 3 graded stone aggregate 20mm nominal size) including cost of centring and shuttering, anchorage as desribed below and finishing the exposed surface with 6mm cement plaster 1:3 (1 cement : 3 fine sand) :

1. Providing and fixing anchor fasteners (expansion fasteners) of approved quality including drilling in R.C.C. and fixing complete of 4 Nos. 16mm dia - 100mm long, 16 Nos (4x4) 12mm dia - 75mm as directed.

2. Providing RCC 1:1.5:3 (1 Cement : 1.5 Coarse sand : 3 graded stone aggregate 20mm nominal size) of size 0.60x0.60x0.75m for pole, 0.30x0.30x0.30m for supports including cost of centring and shuttering but excluding necessary reinforcement.

Erection of 9m antenna Poles at terrace level with MS / GI tubular sections and supporting angles with available materials including cost of lifting of materials from ground floor level :