Ritti Kothi road (Under UT Capex Permanent Restoration)

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

Supplying and stacking at site Graded crushed stone aggregate of size 63 mm to 45 mm

Supplying and stacking at site Graded crushed stone aggregate of size 53 mm to 22.4 mm

Laying, spreading and compacting stone aggregate of specified sizes to WBM specifications in uniform thickness, hand picking, rolling with 3 wheeled road / vibratory roller 8-10 tonne capacity in stages to proper grade and camber, applying and brooming requisite type of screening /binding material to fill up interstices of coarse aggregate, watering and compacting to the required density.

Supplying and stacking at site Stone screening of size 11.2 mm nominal size type B

Supplying and stacking at site crusher dust

Supplying and stacking at site good earth

Providing and applying tack coat using hot straight run bitumen of grade – VG-30, 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. @ 0.75 Kg/sqm.

Providing & laying bituminous macadam using crushed stone aggregates of specified grading premixed with bituminous binder, transported to site by tippers, laid over a previously prepared surface with paver finisher 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 specifications and directions of engineer- in- charge 50 mm average compacted thickness with bitumen of grade VG-30 @3.5% (percentage by weight of total mix) prepared in Drum type Hot mix plant of 60-90 TPH capacity.

2.5 cm premix carpet surfacing with 2.25 cum and 1.12 cum of stone chippings of 13.2 mm and 11.2 mm size respectively per 100 sqm and 52 kg and 56 kg of hot bitumen per cum of stone chippings of 13.2 mm and 11.2 mm size respectively including a tack coat with hot straight run bitumen including consolidation with road roller of 6 to 9 tonne capacity etc. complete (tack coat to be paid for separately) with paving Asphalt grade VG-30 with no solvent

Providing and laying seal coat of premixed fine aggregate (passing 2.36 mm and retained on 180 micron sieve) with bitumen using 128 kg of bitumen of grade VG-30 bitumen per cum of fine aggregate and 0.60 cum of fine aggregate per 100 sqm of road surface including rolling and finishing with road all complete

Carriage of material by M.T incl loading/unloading & stacking complete

Sand av lead 48 km

Stone agg. above 40 mm av lead 10 km

Stone agg. below 40 mm av lead 10 km

Earth av lead 2 km