National Institute Of Technology-NIT has published Tender For Maintenance Work Of Old Library Building Work Including Replacement Of Ac Sheet By Gi Roof Sheet And Ceiling With Calcium Silicate Board. Submission Date for this Tender is 13-03-2023. Chemical Supply Tenders in calicut Kerala. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Steel work in built up tubular (round, square or rectangular hollow tubes etc.) 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. |
| 2 | GI Tubular TATA or equvalent |
| 3 | Providing and fixing precoated galvanised iron 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 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. |
| 4 | Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, 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 : |
| 5 | Ridges plain (500 - 600mm) |
| 6 | Providing & fixing false ceiling at all height including providing & fixing of framework made of special section, power pressed from M.S. sheets and galvanised with zinc coating of 120 gms/ sqm (both side inclusive) as per IS : 277 and consisting of angle cleat of size 25mm wide x 1.6mm thick with flanges of 27mm and 37mm, at 1200mm c/c, one flange fixed to the ceiling with dash fastener 12.5mm dia x 50mm long with 6mm dia bolts, other flange of cleat fixed to the angle hangers of 25 x10 x0.50mm of required length with nuts & bolts of required size and other end of angle hanger fixed with intermediate G.I chanels 45 x15 x 0.90mm running at the spacing of 1200 mm c/c, to which the ceiling section 0.5mm thick bottom wedge of 80mm with tapered flanges of 26 mm each having lips of 10.5mm, at 450mm c/c, shall be fixed in a direction perpendicular to G.I intermediate channel with connecting clip made out of 2.64mm dia x 230mm long G.I wire at every junction, including fixing perimeter channels 0.50mm thick 27mm high having flanges of 20mm and 30mm long, the perimeter of ceiling fixed to wall/ partitions with the help of Rawl plugs at 450mm centre, with 25mm long dry wall screws @ 230mm interval, including fixing of Calcium Silicate Board to ceiling section and perimeter channels with the help of dry wall screws of size 3.5 x25mm at 230mm c/c, including jointing & finishing to a flush finish of tapered and square edges of the board with recommended jointing compounds, jointing tapes,finishing with jointing compounds in three layers covering up to 150mm on both sides of joints and two coats of primer suitable for boards, all as per manufacture"s specification and also including the cost of making opening for light fittings, grills, diffusers, cut outs made with frame of perimeter channels suitably fixed, all complete as per drawings, specificaton and direction of the Engineer in charge but excluding the cost of painting with: |
| 7 | 8 mm thick Calcium Silicate Board made with Calcareous & Siliceous materials reinforced with cellulose fiber manufactured through autoclaving process. |
| 8 | Providing square type UPVC gutter with necessary clamps, bolts, nuts and specials such as nozzles sockets stoppers etc. including cost and conveyance of all materials and labour charges etc. complete as per the instructions of the dept. officers |
| 9 | 200mm or equivalent Square type UPVC |
| 10 | Providing and fixing precoated galvanised iron (GI) sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, 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 : |
| 11 | Providing and fixing false ceiling with 7.5 mm thick specified PVC panel board ceiling of approved quality in aluminium frame work with necessary screws etc complete ( aluminium frame work shall be paid separately) |
| 12 | PVC plain panel 7.5 mm or nearest thick |
| 13 | 12 mm cement plaster of mix : |
| 14 | 1:4 (1 cement: 4 fine sand) |
| 15 | 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. |
| 16 | On steel work |
| 17 | Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete. |
| 18 | Wall painting with acrylic emulsion paint, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre, of approved brand and manufacture, including applying additional coats wherever required, to achieve even shade and colour. |
| 19 | One coat |
| 20 | Two coats |
| 21 | Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : |
| 22 | One or more coats on old work |
| 23 | Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead. |
| 24 | Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of: |
| 25 | Asbestos Cement sheet |
| 26 | Dismantling cement asbestos or other hard board ceiling or partition walls including stacking of serviceable materials and disposal of unserviceable materials within 50 metres lead. |
| 27 | Providing and fixing Polyvinyl Chloride (PVC) pipes, having thermal stability for hot & cold water supply including all PVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step PVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. External work |
| 28 | 110 mm nominal dia Pipes (4kg/cm2) |
| 29 | Providing and fixing aluminium work for doors, windows, ventilators 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 / paneling, C.P. brass / stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fastenersto be paid for separately) : |
| 30 | For fixed portion |
| 31 | Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15) |
| 32 | Providing and laying water proofing treatment over the concrete surface by applying cement based two component polymer modified water proofing slurry coating coating (SIKA 109 TOP seal or equivalent)after cleaning the surface free from scale, rust, grease, oil etc. preparing the surface to be true and flat and saturatedmixing the liquid (A) and powder (B) components in the ratio 1:4 by weight, applying in two coats with an interval of 2 to 6 hours for hardening in between and finally finished by rubbing down with a soft, dry sponge including protecting the applied surface from direct sunlight and storng wind and curing by gunny bags or polythene sheeting upto 5 days etc. complete. |
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