chc maintenance- repair and maintenance works.- 1.001 15.28.1 : dismantling roofing including ridges, hips, velleys and gutters etc., and stacking the material within 50 metres lead of :g.s. sheet 1.002 10.16.1 : steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.hot finished welded type tubes 1.003 13.48.3 : finishing with deluxe multi surface paint system for interiors and exteriors using primer as per manufacturers specifications:painting steel work with deluxe multi surface paint to give an even shade. two or more coat applied @ 0.90 ltr/10 sqm over an under coat of primer applied @ 0.80 ltr/10 sqm of approved brand and manufacture 1.004 od186039/2019 2020 : providing and fixing aluzinctrafold sheet pre coated (size, shape and pitch of corrugation as approved by engineer-incharge) 0.35 mm or nearest available thickness,total coated 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and thickness with zinc coating 120 grams per sqm as per is: 277, inpolyester top coat 15-18 microns. sheet should have protective guard film of 25microns 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 (5.5x55 mm) with epdm seal, complete upto any pitch in horizontal/ vertical or curvedsurfaces, excluding the cost of purlins, rafters and trusses and including cuttingto size and shape wherever required. 1.005 12.4.2 : providing ridges or hips width 60 cm overall width plain g.s. sheet fixed with polymer coated j or l hooks, bolts and nuts 8 mm dia g.i. limpet and bitumen washers complete.0.63 mm thick with zinc coating not less than 275 gm/m2 1.006 od186042/2019 2020 : supplying and fixing 150mm dia pvc rain water gutter semi circular section including fitting with 32mx5m ms flat supporters at 1m interval etc. complete 1.007 21.5 : providing and fixing powder coated aluminium work ( minimum thickness of powder coating 50 micron) consisting of tee /angle sections, of approved make conforming to is : 733 in frames of false ceiling including aluminium angle cleats with necessary c.p brass/ stainless steel sunk screws, aluminium perimeter angles fixed to wall with stainless steel rawl plugs @ 450 mm centre to centre and fixing the frame work to g.i level adjusting hangers 6 mm dia. with necessary cadmium plated machine screws all complete as per approved architectural drawings and direction of the engineer-in-charge ( level adjusting hangers, ceiling cleats and expansion hold fasteners to be paid for separately ). 1.008 21.6 : providing and fixing 6 mm dia. g i level adjusting hangers ( upto 1200 mm length), fixed to roof slabs by means of ceiling cleats made out of g.i flat 40x3 mm size 60 mm long and stainless steel expandable dash fastener of 12.5 mm dia and 50 mm long, complete as per direction of engineer -in-charge. 1.009 50.12.4.2 : providing and fixing false ceiling with 7.5 mm thick pvc wooden grains panel board ceiling of approved quality in aluminium frame work with necessary screws etc complete ( aluminium frame work shall be paid separately) 1.01 13.63.1 : painting with aluminium paint of approved brand and manufacture to give an even shade.two or more coats on new work 1.011 50.6.2.1 : solid block masonry using pre cast solid blocks (factory made) of size 30x20x15 cm or nearest available size confirming to is 2185 part i of 1979 for foundation and plinth with thickness 15cm in: cm 1:6 ( 1 cement :6 coarse sand) etc complete 1.012 13.1.1 : 12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand) 1.013 50.2.26.1 : filling with contractor own earth (excluding rock) in open areas in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m as per direction of site engineer-in-charge. 1.014 51.2.3 : filling with quarry muck filling up low lying and water logged areas with local material/ quarry muck, spreading in layers, leveling the top at site and consolidation by ramming, etc complete for improving the cbr value of subgrade 1.015 16.68 : providing and laying 60 mm thick factory made cement concrete interlocking paver block of m - 30 grade made by block making machine with strong vibratory compaction, of approved size, design and shape, laid in required colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of engineer-in-charge. 1.016 4.1.3 : 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 (cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) 1.017 od177662/2019 2020 : providing and fixing granite inaguration board 18 mm thick gang saw cut, mirror, polished, premoulded and prepolished, machine approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 ( 1 cement : 4 coarse sand),modified 8.2.2.2 andamp; 16.21
