NHIDCL/RO/AN/6th Call/FY 2020-21/02

Amount

Clearing of Bushes & Grasses from Road Side: Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area(road land) cleared.

Maintenance of Earth Shoulder (stripping excess soil): Stripping excess soil from the shoulder surface to achieve the approved level and compacting with plate compactor, Assuming average depth of stripping as 75 mm.

Granular Sub-Base: 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-III (size range 26.5 mm to 0.075 mm ) having CBR Value-20; for hard shoulder with 100mm compacted thicknes

Dismantling of Flexible pavement: i.e Bituminous Courses & Base layer, with overall depth of 100mm by mechanical means and disposal of dismantled material up to a lead of 1 kilometre, as per direction of Engineer-in-charge.

Tack coat: Providing and applying tack coat using hot straight run bitumen of grade VG - 10, including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications :

On W.B.M./W.M.M @ 0.75 Kg / sqm

On Bituminous Surface @ 0.50 Kg / sqm

Dense Graded Bituminous Macadam Laying: Providing and laying Dense Graded Bituminous Macadam using crushed stone aggregates of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site by tippers, laying with paver finisher equiped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers as per specifications to achieve the desired compaction and density, complete as per specificatons and directions of Engineer-in-Charge. 75mm average compacted thickness with bitumen of grade VG-30 @ 5% (percentage by weight of total mix) and lime filler @ 2% (percentage by weight of Aggregate) prepared in Drum Type Hot Mix Plant of 60-90 TPH capacity.

Bituminous Concrete Laying: Providing and laying Bituminous concrete using crushed stone aggregates of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site by tippers, laying with paver finisher equiped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction and density as per specification, complete and as per directions of Engineer-in-Charge. 40mm compacted thickness with bitumen of grade VG-30 @ 5.5% (percentage by weight of total mix) and lime filler @ 3% (percentage by weight of Aggregate) prepared in drum Type Hot Mix Plant of 60-90 TPH capacity.

Road Markers/Road stud with Lense Reflector

Road Marking with Hot applied Thermoplastic Compound with Reflectorising Glass Beads on Bituminous Surface

Retro-Reflecrtorised Traffic Signs : 60 CM Circular

Hydraulic Excavator (3D) with driver and fuel

Labour

Road Side Drains with Random Rubble Masonry: Random rubble masonry with hard stone including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

PCC (1:5:10) below RRM Road Side Drains of 100mm thickness: Providing and laying in position cement concrete of specified grade, 1:5:10 (1 cement : 5 coarse sand (zone-III): 10 graded stone aggregate 40 mm nominal size)