Repair Renovation of PTAE Test Bed and Providing G I Sheet Shelter For Wash Basin Areas DG Area In AERDC Premises HAL DC Bangalore

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Experience of having successfully completed similar works during last 7 years ending on the previous day of submission of tender.. [Latest work experience certificate may be uploaded] (i) THREE similar completed works each costing not less than the amount equal to 40% of the estimated cost. (ii) TWO similar completed works each costing not less than the amount equal to 50% of the estimated cost. (iii) ONE similar completed work each costing not less than the amount equal to 80% of Amount put to the tender.

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Specification

1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources.

Centering and shuttering including strutting, propping etc. and removal of form work for : Foundations, footings, bases for columns.

Providing and laying damp-proof course 40mm thick with cement concrete 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 12.5mm nominal size derived from natural sources)

Structural steel E 250 (Fe 410W) work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position, including M.S. plates,foundation bolts, cutting to dead length where required, notching, drilling, riveting and/or welding, connecting with bolts and nuts, wedging, plumbing, applying a priming coat of approved steel primer, all complete as directed by the Engineer-in-Charge.

Providing and fixing bolts including nuts and washers complete.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50mm (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. 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 self drilling /self tapping screws of size (5.5x 55 mm) with 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.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade as per direction of Engineer-in-charge. - Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture.

Providing and laying in situ seven course water proofing treatment with APP (Atactic poly-propylene) modified Polymeric memberane over roof consisting of first coat of bitumen primer @ 0.40 litre per sqm, 2nd, 4th & 6th courses of bonding material @ 1.20 Kg/sqm, which shall consist of blown type bitumen of grade 85/25 conforming to IS : 702, 3rd and 5th layers of roofing membrane APP modified Polymeric membrane 1.5 mm thick of 2.25 Kg/sqm weight consisting of five layers prefabricated with centre core as 20 micron HMHDPE film sandwiched on both sides with polymeric mix and the polymeric mix is protected on both side with 20 micron HMHDPE film. 7th, the top most layer shall be finished with brick tiles of class designation 10 grouted with cement mortar 1:3 (1cement : 3 fine sand) mixed with 2% integral water proofing compound by weight of cement over a 12 mm layer of cement mortar 1:3 (1 cement : 3 fine sand) and finished neat (item of laying brick tiles shall be paid for separately).

Dismantling aluminium/ Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material with in 50 meters lead as directed by Engineer-in- charge.

Providing and fixing aluminium work for doors, windows, ventilators and partitions with extruded built up. Ventilators: 63.5 X 38.1 X 1.7 mm and weight n.less than 0.9Kg/m conforming to designaton 63400 of IS 1285 and of approved make, Sliding Window Frame: Top and side sections of the frame shall be approx. (91.8 x 31.75 x 1.5) mm and weighing not less than 0.98 kg/m to accommodate the shutter section. Bottom section of the frame shall be with gutter and not less than (91.8 x 45.5 to 37.5 x 1.5) mm and weighing not less than 1.57 kg/m. and partitions with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS: 1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/ neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / panelling, C.P. brass / stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fasteners to be paid for separately) : For fixed portion Powder coated aluminium (minimum thickness of powder coating 50 micron)

Providing and fixing glazing in aluminium door, window, ventilator shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of engineer-in-charge. - With float glass panes of 5 mm thickness (weight not less than 12.50 kg/sqm)

Providing and fixing false ceiling at all heights with integral densified calcium silicate reinforced with fiber and natural filler false ceiling tiles of Size 595x595 mm of approved texture, design and patterns as per CPWD Specification 2019, to be laid in true horizontal level suspended on interlocking metal T-Grid of hot dipped galvanised iron section of 0.33 mm thick (galvanized @ 120 grams per sqm including both sides) comprising of main-T runners of size 24x38 mm of length 3000 mm,cross - T of size 24x32 mm of length 1200 mm and secondaryintermediate cross-T of size 24x32 mm of length 600 mm to formgrid module of size 600 x 600 mm, suspended from ceiling using galvanised mild steel items (galvanizing @ 80 grams per sqm) i.e. 12x50 mm long dash fasteners, 6 mm dia fully threaded hanger rod upto 1000 mm length and L-shape level adjuster of size 76x25x25x1.6 mm fixed with grid and Z cleat of size 25x37x25x1.6 mm thick with precut hole on both 25 mm flange to pierce into 12x50 mm or even bigger size dash fastener if require, fixed with Glavanised iron perimeter wall angle or size 24x24x0.40 mm of length 3000 mm to be fixed on periphey wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40 mm long dry wall S.S screws. The work shall be carried out as per specifications, drawing and as per directions of the Engineer-in-Charge.

Rupees Six Lakh Twenty Seven Thousand Six Hundred Seventy Six and Eighty Eight Paise Only

Approximate Amount Put to Tender

Rupees One Lakh Twelve Thousand Nine Hundred Eighty One and Eighty Three Paise Only

Rupees Seven Lakh Forty Thousand Six Hundred Fifty Eight and Seventy Two Paise Only