tender for annual plan-2025-25 pdm .project no.280/26-maintenance of cherikkal govt lps-general civil work - maintenance of roofing 2 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 (zone-iii)derived from natural sources : 4 graded stone aggregate 20 mm nominal sizederived from natural sources) 3 4.3.1:centering and shuttering including strutting, propping etc. and removal of form work for:foundations, footings, bases for columns 4 50.10.2:steel work for purlin/single section with g i pipes 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 5 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 6 od225253/2025-2026:providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by engineer-in-charge) 0.35 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 (5.5x55mm) 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. 7 12.51.1: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 screwscomplete :ridges plain (500-600 mm) 8 od225256/2025-2026:supplying and fixing 150mm dia pvc rain water gutter semi circular section including fitting with 32x5mm ms flat supporters at 1m interval etc .completed 9 50.6.1.5:solid block masonry using pre cast solid blocks ( factory made) of size 30x20x20cm or nearest available size confirming to is 2185 part i of 1979 for super structure up to floor two level thickness 20cm and above in: cm 1:6 ( 1 cement : 6 coarse sand) etc complete 10 50.6.1.4:solid block masonry using pre cast solid blocks (factory made) of size 30x20x20cm or nearest available size confirming to is 2185 part i of 1979 for foundation and plinth with thickness 20cm and above in: cm 1:6 ( 1 cement : 6 coarse sand ) etc complete 11 13.4.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 coarse sand) 12 14.1.1:repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground within 50 meters lead:with cement mortar 1:4 ( 1 cement : fine sand) 13 5.3:reinforced cement concrete work in beams, suspended floors, roofs, having slope up to 15°landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases up to floor five level excluding the cost of centering, shuttering, finishing and reinforcement, with1:1.5:3 (1 cement : 1.5 coarse sand (zone iii)derived from natural sources: 3 graded stone aggregate 20 mm nominal sizederived from natural sources). 14 5.9.5:centering and shuttering including strutting, etc. and removal of form for:lintels, beams, plinth beams, girders bressumers and cantilevers 15 5.22.6:steel reinforcement for r.c.c work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelthermo - mechanically treated bars of grade fe-500d or more 16 10.1:structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. 17 13.48.1:finishing with deluxe multi surface paint system for interiors and exteriors using primer as per manufacturers specifications:two or more coats applied on walls @ 1.25 ltr/10 sqm over and including one coat of special primer applied @ 0.75 ltr /10 sqm 18 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 & 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.