annual plan-122/kvl/25-26-maintenance of govt lp school kezhuvamkulam-general civil work-- 1 school maintenance 2 15.31:dismantling tiled roofing with battens, boarding etc. complete including stacking of serviceable material and disposal of unserviceable material within 50 metres lead. 3 15.14.2:dismantling wood work in frames, trusses, purlins and rafters up to 10 metres span and 5 metres height including stacking the material within 50 metres lead:of sectional area below 40 square centimeters 4 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) 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 od68270/2025-2026:providing & fixing on roof pressed clay tile (dept. mangalore tile) of 20 mm nominal thickness and of approved size and as per approved pattern on steel frame work complete (steel frame work to be paid separately) 7 12.48:providing & fixing on roof pressed clay tile (mangalore tile) of 20 mm nominal thickness and of approved size and as per approved pattern on steel frame work complete (steel frame work to be paid separately) 8 12.49:providing & laying on roof pressed clay tile ridge (mangalore tile) of 20 mm thickness and of approved pattern on steel frame work complete (steel frame work to be paid separately ). 9 13.44.1:finishing walls with water proofing cement paint of required shade:new work (two or more coats applied @ 3.84 kg/10 sqm) 10 15.7.4:demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of engineer-in-charge.in cement mortar 11 50.6.2.2:solid masonry using pre cast solid blocks (factory made) of size 30x20x15cm or nearest available size confirming to is 2185 part i of 1979 for super structure up to floor two level with thickness 15cm in : cm 1:6 ( 1 cement : 6 coarse sand) etc complete 12 13.16.1:6 mm cement plaster of mix:1:3 ( 1 cement : 3 fine sand) 13 13.7.1:12 mm cement plaster finished with a floating coat of neat cement of mix:1:3 ( 1 cement : 3 fine sand) 14 11.37:providing and laying ceramic glazed floor tiles of size 300x300 mm (thickness to be specified by the manufacturer) of 1st quality conforming to is : 15622 of approved make in colours such as white, ivory, grey, fume red brown, laid on 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand), jointing with grey cement slurry @ 3.3 kg/sqm including pointing the joints with white cement and matching pigment etc., complete 15 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 16 od68291/2025-2026:providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by engineer-in-charge) 0.350 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. 17 4.1.8:providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level:1:4:8 (1 cement : 4 coarse sand (zone-iii) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)