Strengthening of road patch over newly constructed embankment on Mathra road under Sasti Sub Area

Amount

Excavation in soil using hydraulic excavator and tippers wiith disposal upto 1000 meters. Excavation for roadwork in soil with hydraulic excavator including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location with all lifts and lead upto 1000 m as per relevant clauses of section - 300 of specification.

Construction of granular sub-base by providingwell graded material like natural sand crushedgravel or crushed stone having CBR >30, spreading in uniform layers with motor grader onprepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, andcompacting with vibratory rollers of 80 to 100 kNstatic weight to achieve the desired density, complete as per Clause 401 of Specification Plant Mix Method For Grading-I Material

Construction of granular sub-base by providingwell graded material like natural sand crushedgravel or crushed stone having CBR >30, spreading in uniform layers with motor grader onprepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, andcompacting with vibratory rollers of 80 to 100 kNstatic weight to achieve the desired density, complete as per Clause 401 of Specification Plant Mix Method For Grading-III Material

Water Bound Macadam. Providing laying spreading and compacting stone aggragate of specifc sizes to water bound macadam specifications including spreading in uniform thickness , hand packing, rolling with vibratory roller 8-10 T in stages to proper grade and camber , applying and brooming requisite type of screenings / binding materials to fill up the interstices of coarse aggregate watering and compacting to the required density as per clause 404 of specifications. ( B ) By mechanical means, Grading II ( 53 mm to 22.4mm ) using type B screenings ( 11.2 mm ). ( Note : for one 1.00 cum of compacted thickness contractor have to supply following materials 53 mm to 22.4 mm aggregate = 1.21 cum screenings 11.20 mm = 0.24 cum stone dust = 0.08 cum)

surface dressing: Providing and laying surface dressing as wearing course in single coat using crushed stone aggregates of specified size on a layer of bituminous binder laid on prepared surface and rolling with 8-10 tonne smooth wheeled steel roller all complete as per clause 509 of specification. I with 19 mm nominal chipping size & bitumen @1.2kg per sqm.

Total impact of GST for the purpose of CTC

Neha Enterprises (BID ID -1140732)

Alok Ranjeet Saha (BID ID -1141533)