Provision of Cement Concrete road around Godown no. 1, 2, 3 and 4 along with drains, culverts at FSD Hirakud ..... 4th call.

Dismantling manually/by mechanical means including stacking of servicable material & disposal of unservicable material with in 50 m lead as per direction of Engineer in charge : Water Bound Macadam Road

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge. In cement mortar

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)

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and for all lift as directed by Engineer-incharge. All kinds of soil

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.

Preparation and consolidation of sub grade with power road roller of 8 to 12 tonne capacity after excavating earth to an average of 22.5 cm depth, dressing to camber and consolidating with road roller including making good the undulations etc. and re-rolling the sub grade

Construction of granular sub-base by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC, carriage of mixed material by tippers to work site, for all leads & lifts, spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.With material conforming to Grade-II (size range 53 mm to 0.075 mm) having CBR Value-25

Construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, coarse aggregate not exceeding 26.5 mm nominal size, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per Table: B below, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined by trial during construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a mechanical paver, compacting with 8-10 tonnes vibratory roller, finishing and curing etc. complete as per direction of Engineer-in-charge. Table B : Aggregate Gradation for Dry Lean Concrete Sieve Designation Percentage by weight passing the sieve 26.50 mm 100 19.0 mm 75-95 9.50 mm 50-70 4.75 mm 30-55 2.36 mm 17-42 600 micron 8-22 300 micron 7-17 150 micron 2-12 75 micron 0-10

Providing and laying of separation Membrane of impermeable plastic sheeting 125 micron thick.