maintenance of drain (repair, raising and covering of main darin along sector-67 on 60mtr. wide kailash road) noida - 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 upto 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. the contrector has to detect different utilites like sewer line water supply line elecctric cable telephone cable gas pipe line etc. using utility detectingmachine before start of excavetion andshall start excavetion only after getting permissionof engineer -in charge . 2 brick work with common burnt clay f.p.s. (non modular) bricks of class designation 100 in foundation and plinth in: 6.1.1 cement mortar 1:4 (1 cement : 4 coarse sand) 3 12 mm cement plaster of mix :1:4 (1 cement : 4 coarse sand) 4 neat cement punning 5 fabrication & manufacturing of prestressed hollow core slab (hollow area 25 to 30%) of different thickness & modular width 1200 mm in controlled factory environment with approved methodology informing to is 10297- 1982 conforming to is : 10297- 1982 by using long line casting method having arrangement of proper steel bed. concreting should be done by batch mixing plant capable of producing zero slump concrete, transported through automatic shuttels of standard make & layed on bed with the help of extruder/slipformer, finishing, curing and also provision of steam curing. cutting, making necessary cutout/holes of required sizes for services in slab element after achieving required strength, yard handling & stacking all complete as per approved shop drawings & design mix as per the direction of the engineer-in-charge. (cost of strands should be paid separately). note : excess/ less cement over the specified cement content used as per design mix is payable / recoverable separately 150 mm thick hollow core slab 6 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 initial lead, for all leads including all lifts involved. 7 supply of mobile hydraulic crane 35 tonne capacity (173 hp) in all respect as per direction of engineering in charge. 8 dewatring pump 10 hp at site on hire bases including cost of diesel and driver etc complete in all respect as per direction of engineer in charge. 9 empty bag filling by sand: supply and laying fo sandy earth plastic cement bags (volume 0.035 cum) including cost fo earth cost of empty bags, labour, stitching with sututely complete, laying and placing complete at the place of restoration of embankment.