tender for annual plan-2024-25-ktpdy 75/25 north lp school maintenance-general civil work - maintenance 2 2.8.1:earth work in excavation by mechanical means (hydraulic excavator) /manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.all kinds of soil 3 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) : 4 graded stone aggregate 20 mm nominal size) 4 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 5 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 6 od469886/2024-2025: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 od469885/2024-2025:providing and fixing precoated galvanised steel sheet roofing accessories0.40 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 using self drilling/ self tapping screws etc. complete. ridges plain(500-600mm) od69/21-22.modified dar 12.5.1.1 8 od467166/2024-2025:providing and fixing 200 mm wide square upvc rain water gutter including all necessary fittings and making all necessary connections complete as per the direction of engineer in charge at site 9 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 10 13.1.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)