tender for providing and laying in position cement concrete including curing, compaction etc. complete in specified grade excluding the cost of centering and shuttering - all work up to plinth level. m15 grade nominal mix , m15 grade nominal mix 1: 2: 4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size). , demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of engineer-in-charge. , 1: 3: 6 or richer mix. , centering & shuttering with plywood or steel sheets including strutting, propping bracing both ways with steel props and removal of formwork for upto floor five level for : , walls (any thickness) including attached pilasters, buttresses plinth and string course. , major repair with unlowering and lowering of 32/ 50 mm gi pipes assembly including minor repair if any. work also includes transportation of all material from store to work point and depositing unserviceable material to store. work can be done by lowering machine/ chain pulley/ any system. , construction of tube well up to 100 mtr. depth in all type of rocks by dth system and over burden to accommodate casing pipe of following sizes in all types of soils and over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per is:2800 part 1: 1991 and is:2800 part ii: 1979 (both amended upto date) and technical specifications. the work would be completed after obtaining sand free water. the tube well should have a through out bore as per nominal dia of casing pipe. , nominal bore 125 mm dia. , construction of 185 cm. dia platform as per approved design and drawing of unicef. , providing and fixing of flanged/ plain ended ms specials made from ms sheet strips of relevant is specification of approved thickness by welding, lowering, laying, aligning, fixing in position at all level/ depths in trenches complete including all taxes, material, labour, inside lining, outside coating,