REPAIR AND MAINTENANCE OF BITUMINOUS ROADS AT DRDO ESTATE, UNDER EMU (R and D) DRDO NASIK

Amount

“Repair and Maintenance of Bituminous Roads at DRDO Estate, under EMU(R&D), Nasik Under EMU (R&D) DRDO, Nasik” as per scope of works attached as Appendix-‘A’.

DSR Items

Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material within all lifts and lead upto 1km (by mechanical means).

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in for all leads & lifts, laying in uniform layers with mechanical paverfinisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to chievethe desired density, complete as per specifications and directions of Engineer-in-Charge.

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 : with including brooming ,blowing with air compressor, cleaning for dust free surface

On bituminous surface @ 0.50 Kg / sqm

Providing and laying semi- dense 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.

25 mm 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 Batch Type Hot Mix Plant of 100-120 TPH capacity.

75 mm thick back filling for pitching including supplying of required materials and consolidation etc. complete with road side Berm : Compaction with 8 to 10 Tone Roller

Providing and applying 2.5 mm thick road marking strips (retroreflective) of specified shade/ colour using hot thermoplastic material by fully/ semi automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads dispenser, propane tank heater and profile shoe heater, driven by experienced operator on road surface including cost of material, labour, T&P, cleaning the road surface of all dirt, seals, oil, grease and foreign material etc. complete as per direction of Engineer-in-charge and accordance with applicable specifications.

MS SAIKRISHNA GARDENS

M/s M R MAHANA