Repair and maintenance works

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

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

1:2:4 (1 cement : 2 coarse sand(zone-III) : 4 graded stone aggregate 20 mm nominal size)

1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size)

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 corrugated G.S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to 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.

0.63 mm thick with zinc coating not less than 275 gm/ m²

Painting on G.S. sheet with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

New work (two or more coats) including a coat of approved steel primer but excluding a coat of mordant solution.

Checking &Tightining of existing nuts & bolts complete as per direction of E.I.C. All necesary precautions with regard to the safety of the labourers shall be taken during execution of the work

Providing, fabricating and supplying at site galvanized steel tower materials (for missing members) with average mass of zinc coating of 610 gm/sqm (approximately 85 micron) consisting of flats, angles, plates, bars, bolts and nuts, washers all fabricated as per drawings and specifications. The strucural steel section produced by approved secondary producer shall be used. The weight of structural section, plates, chequered plates, nuts, bolts & washers for fixing the member shall be measured for payment in respective sub items. The rate includes the cost of all materials & labour required for all operations mentioned above & nothing extra shall be paid on any account.

Angular members of required size, plates, chequrred plates, Nuts, bolts and washers:

Fixing of missing members (angles, tees, plates etc) with nuts and bolts/ welding making holes (rates include of shuttering, gas welding plant and other necessary equipments and machinery and other necessary equipments for the safety of labours) all complete as per directions of engineer in charge.

Drilling holes of size up to 35 mm or of required size in MS angles having thickness up to 8 mm including carriage of drilling machine etc up to site all complete as per direction of E.I.C