Construction of Rain water drain

Earthwork in excavation by mechanical means (hydraulic excavator)/ manuel means in foundation pipeline trenches drains( not exceeding 1.5M in width or 10 sqm on plan)including dressing of sides ramming of bottoms lift upto 1.5m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead 50M. a)All Kinds of soil

b) Earthwork in excavation by mechanical means (hydraulic excavator)/ manuel means in foundation pipeline trenches drains( not exceeding 1.5M in width or 10 sq.m on plan) including dressing of sides ramming of bottoms lift upto 1.5m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead 50M. b)All types of ordinary rock including all types of laterite rock, blsting prohibited

Rubble packing with laterite stone under floors including watering ramming and consoidating etc. in pipeline trenches and other foundation complete

Providing and laying cement concrete 1:2:4(1 cement 2 coarse sand:4 graded granitic or basaltic stone aggregate 20 mm nominal size) excluding cost of centering, shuttering and finishing in:a)all works upto plinth level

i) Centering and shuttering including strutting Propping and removal of forms for i) Foundations, Footings, Bases for columns

a) Supplying and fixing of precast RCC slabs (factory made the factory should be ISO certified and registered under Directorate of industries, Govt of India) at site in concrete grade of M-25 with 20mm nominal size Granitic or basaltic aggregate consolidated by means of mechanical platform vibration etc. with lifting hooks of M.S 10mm bars and PVC cups including cost of reinforcement certificate from manufacturer shall be produced indicating grade of concrete and minimum content of steel in the product along with 5 year free replacement warranty in case of breakage complete and as directed by Engineer-in-charge. a) Size 1200 x 400 x 150 mm with steel reinforcement not less than 9 kg.