tender for annual plan-99/25-26-school maintenance in kalluvathukkal gp-general civil work-- 1 auditorium construction 2 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 3 5.2.2:reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. up tot floor five level excluding cost of centering, shuttering, finishing and reinforcement :1:1.5:3( 1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size derived from natural sources) 4 5.9.6:centering and shuttering including strutting, etc. and removal of form for:columns, pillars, piers, abutments, posts and struts 5 50.10.1:steel work in built up g i 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 6 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 7 12.50: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 (5.5x55mm) 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. 8 od167971/2025-2026:providing and fixing150mm wide, square cut pvc 4kgf/cm2 rain water gutter pipe with iron brackets with 25x5 mm size flat, screws and washers etc., including making necessary connections with rain water pipes etc. complete. 9 od190179/2025-2026: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 minirnum 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 10 od190182/2025-2026:providing and fixing 0.35 mm thick tile profile/trafford sheets roofing up to any pitch and fixing with polymer coated j, or l hooks, bolts and nuts 8 mm dia. g.i.plain and bitumen washers or with self drilling fastener and epdm washers etc, complete (excluding the cost of purlins,rafters and trusses), including cutting sheets to size and shape wherever required. consider a shed of 20 x 10 meters and up to 60 degree pitch(external dimension of plinth). ridges plain (500-600mm)