tender for repair and maintenance works at ccus lab in the institute - civil works item; 1 surface dressing of the ground including removing vegetation and inequalities not exceeding 15 cm deep and disposal of rubbish, lead up to 50 m and lift up to 1.5 m : all kinds of soil 2 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level :1:5:10 (1 cement : 5 coarse sand (zone-iii) derived from natural sources : 10 graded stone aggregate 40 mm nominal size derived from natural sources) 3 40 mm thick cement concrete flooring 1:2:4 (1cement: 2 coarse sand: 4 graded stone aggregate ) finished with a floating coat of neat cement including cement slurry but excluding the cost of noising of steps etc. complete with 20 mm nominal size stone aggregate. 4 providing and laying factory made chamfered edge cement concrete paver blocks in footpath, parks, lawns, drive ways or light traffic parking etc, of required strength, thickness & size/ shape, made by table vibratory method using pu mould, laid in required colour & pattern over 50 mm thick compacted bed of sand, compacting and proper embedding/laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand. complete all as per direction of engineer-in-charge.80 mm thick c.c. paver block of m-35 grade with approved colour design and pattern. 5 providing gola 75mm x 75mm in cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 10mm and down gauge ) including finishing with cement mortar 1:3 ( 1cement : 3 fine sand) as per standard design in 75x75 deep chase. 6 providing and fixing 1 mm thick m.s. sheet door with frame of 40x40x6 mm angle iron and 3 mm m.s. gusset plates at the junctions and corners, all necessary fittings complete, including applying a priming coat of approved steel primer : using m.s. angels 40x40x6 mm for diagonal braces 7 providing and fixing angle iron frames for doors, windows and ventilators of mild steel angle sections of size 35x35x5 mm, joints mitred and welded by angle iron 35x35x5 mm or 35x 5 mm flat pieces to the existing t-iron frame or to the wall with dash fastener, including fixing of necessary butt hinges and screws and applying a priming coat of approved steel primer, all complete as per the direction of engineer-in-charge.