Making two nos. Enclosure for the Gas storage facility located at the back side of Ball Mill Shed, RTCD, CSIR-CGCRI, Kolkata.

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

Suspended floors, roofs, landings, balconies and access platform

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.

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete.

40 mm thick with 20 mm nominal size stone aggregate

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing 1mm thick M.S. sheet door with frame of 40x40x6 mm angle iron and 3 mm M.S. gusset plates at the junctions and corners, all necessary fittings complete, including applying a priming coat of approved steel primer.

Using M.S. angels 40x40x6 mm for diagonal braces

Applying priming coat:

With ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel galvanised iron/ steel works

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

Two or more coats on new work

15 mm cement plaster on rough side of single or half brick wall of mix:

1:4 (1 cement: 4 coarse sand)

Providing and fixing corrugated roof sheet in roof made of zinc / aluminum alloy coated high tensile steel of 0.45 mm thick having yeild strength of 550 MPa with a profile width of 1072 mm up to any pitch and fixing with required fittings as necessary. including cutting sheets to size and shape wherever required all complete as per direction of Engg.-in-charge (excluding the cost of purlins, rafters and trusses).

Supplying, fitting, fixing, Chain link fencing of approved quality with R.C.C posts wooden posts or iron posts by means of galvanised "C" clips to grid of horizontal strands of galvanised high tensile spring steel wire of 12 S.W.G which have to be tensioned and fixed to the vertical posts by means of galvanised special clips, bolts and nuts etc. 50 mm. x 50 mm. x 8 g. (The rate is exclusive of the cost of posts)