Construction of a Scrap Yard, GI Roofing for Transformer and allied Civil works at CDAC, Vellayambalam

Civil and allied Works

Earthwork excavation in all kinds of soil, with all leads,as per instructions,including filling the sides with the excavated earth,ramming,and providing shoring and shuttering to the sides wherever necessary,complete as directed.The disposed earth shall be levelled and neatly dressed.

Providing and laying in position cement concrete of specified grade 1:3:6(1 part cement : 2 parts coarse sand : 4 parts graded stone aggregate of 20 mm nominal size),including the cost of centering and shuttering, etc.,complete.

Brick work in any floor level with cement mortar 1:6 using cement concrete blocks or burned fire-clay bricks,including all materials,labour,and incidental charges,complete.Upto atleast 1.5m ht. from ground level.

Providing and applying 12 mm to 15 mm thick cement plaster of mix 1:3(1 part cement : 3 parts fine sand), finished with a floating coat of neat cement on all surfaces such as concrete walls,brick walls,columns, beams,floors,etc., at all heights,complete.

Filling with contractor’s own earth (excluding rock) in open areas, in layers not exceeding 20 cm in thickness, consolidating each layer by ramming and watering,with a lead up to 50 m and a lift up to 1.5 m,all as directed by the Site Engineer-in-Charge.

Supply and fixing of colour-coated roofing steel sheets of TATA, Jindal,or an approved equivalent,0.40 mm thick,of the approved size and colour,including the cost of 2½" GI pipe (16 gauge) used as columns,fixed with a sufficient and strong concrete base.The work shall include all accessories required for completing the roofing work,such as tap screws with self-drilling fasteners,J-hooks/L-hooks,nuts,washers,etc.The GI framework shall be fixed with MS plates and anchor bolts on the concrete base,including the cost of appropriate purlins,rafters,trusses,MS plates,angles,etc.,to complete the work as directed by the Engineer-in-Charge.Provide 6" square rainwater down-gutters with all related fittings for draining water to ground level.The rate includes cutting,hoisting,fixing in position,and applying two coats of enamel paint over one coat of approved steel primer,including welding,etc.,complete.Use (2"×1½") rafters and (1½"×1") purlins of 18-gauge Jindal/Appolo/Tata GI sections.The work is proposed to be carried out at ground level only.

Supplying,fabricating and fixing GI hollow rectangular/square sections (25x25x2,38x38x2 mm etc.); applying two coats enamel paint after a priming coat of approved steel primer,including welding,grinding to get smooth finish etc. complete as per directions of the CDAC official.Brand: TATA/Appolo/Jindal or approved equivalent.

Painting with acrylic emulsion paint(exterior quality) of approved brand(Roller finish) @ 1.67 ltr/10 Sqm on old/new surface of walls,shades,ceiling etc after a single coat of approved cement primer;scrapping, cleaning the surface etc. complete.Brand:Asian/Berger/Dulux/ Nerolac. 2 or more coat.

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