Repair and renovation of Portable cabins at IIT Goa

Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches drains (not exceeding 1.5m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50m i) Hard rock (blasting prohibited)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering- All work up to plinth level: i) 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources: 4 graded stone aggregate 20mm nominal size derived from natural sources)

Steel work in built up tubular (round, square or rectangular hollow tubesetc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. i) Hot finished welded type tubes

Providing and laying vitrified tiles in floor in different sizes (thickness to be specified by the manufacturer) with water absorption less than 0.08% and confirming to IS:15622, of approved brand & manufacturer, in all colours and shade, laid on 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joints with white cement and matching pigments etc. The tiles must be cut with the zero chipping diamond cutter only. Laying of tiles will be done with the notch trowel, plier, wedge, clips of required thickness, leveling system and rubber mallet for placing the tiles gently and easily. i) Double charge vitrified tile polished finish of size - Size of tile 600 x 600mm

Providing and fixing precoated galvanised steel sheet roofing accessories of total coated thickness 0.50 mm (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 using self drilling/ self tapping screws complete : i) Ridges plain (500 - 600mm)

12mm cement plaster of mix: 1:4 (1 cement : 4 coarse sand)

Finishing walls with Acrylic smooth exterior paint of required shade: i) New work (Two or more coats applied @ 1.67 ltr/ 10sqm over and including priming coat of exterior primer applied @ 0.90 litre/ sqm)

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat, preparation of surface etc. complete i) On steel work

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : i) Two or more coats on new work

Providing and fixing premium Aluminium-Zinc colour coated steel (galvalume) profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %), total coated thickness with zinc coating 150 grams per sqm as per IS: 277, in 550 mpa steel grade, 5-7 microns acrylic coating (Hexavalent / Trivalent) 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 Stainless Steel self drilling /self tapping screws of size (6x 50 mm) with SS hex cap and 3mm 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.

Supplying, laying, spreading and compacting with Hard stone boulder of minimum size of 200mm in foundation bases including, hand picking, placing, applying binding material to fill up intersitces of soling stones, watering and compacting as per the direction of Engineer-in-charge.

Laterite Masonry in neatly dressed stones of as specified in cement mortar 1:5 ( 1 cement : coarse sand ) in foundation and plinth.

Supply and filling with moorum upto plinth not exceeding 20 cm in depth i.e., watering , ramming , consolidation & dressing each layer all complete for all lead & lift (compacted qty shall be measured for payment.)