civil works on roof top for 130 kw solar power plant at nalco mines , damanjodi . , dismantling of old tar felting from roof 7 parapet wall & stacking dismantled tarfelts within a lead of 100 mtrs including all labours , tools & tackles etc . all complete ar per e-i-c . , carriage of brick beyond 10 km upto 20 km , full brick work laying masonary with approved fly ash brick of size 230 x 110 x 75 mm in superstructure above plinth level up to floor five level with cement motar 1:6 ( 1 cement : 6 coarse sand ) including curing all complete as per the direction of engineer-in-charge . ( fly ash brick shall be issued free of cost by nalco at ash brick plant , alumina refinery ) . , providing and fixing on wall face unplasticised rigid pvc rain water pipes conforming to is : 13592 type a , including jointing with seal ring conforming to is : 5382 , leaving 10 mm gap for thermal expansion , ( i ) single socketed pipes . 110 mm diameter , 12 mm cement plaster of mix : 1:4 ( cement will be issued free of cost at nalcos store ) , neat cement punning . ( water proofing agenet to be mixed . paymeny of water proofing agent will be paid seperately ) ( cement will be issued free of cost at nalcos store ) , providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturers specification . , demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in - charge . nominal concrete 1:4:8 or leaner mix ( i / c equivalent design mix ) , dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead . , disposal of building rubbish / malba / similar unserviceable , dismantled or waste materials by mechanical means , including loading , transporting , unloading to approved municipal dumping ground or as approved by engineer-in-charge , beyond 50 m initiallead , for all leads including all lifts involved . , providing and laying four courses water proofing treatment with bitumen felt over roofs consisting of first and third courses of blown bitumen 85 / 25 or 90 / 15 conforming to is : 702 applied hot @ 1 . 45 kg per square metre of area for each course , second course of roofing felt type 3 grade-i ( hessian based self finished bitumen felt ) and fourth and final course of stone grit 6 mm and down size or peasized gravel spread at 6 cubic diameter per square metre including preparation of surface but excluding grading complete with : bitumen felt ( hessian base ) type 3 grade i conforming to is : 1322 , grading roof for water proofing treatment with cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) ( cement will be issued free of cost at nalcos store ) , providing and laying in position bitumen hot sealing compound for expansion joints etc . using grade a sealing compound . ( amount will be paid per cm depth per cm width ) , finishing walls with premium acrylic smooth exterior paint with silicone additives of required shade : new work ( two or more coats applied @ 1 . 43 ltr / 10 sqm over and including priming coat of exterior primer applied @ 2 . 20 kg / 10 sqm )