Scarifying existing bituminous surface to a depth of 50 mm by mechanical means Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material with in all lifts and lead upto 1000 metres.
2
Providing and applying tack coat with catonic bitumen emulsion (RS-1) using emulsion pressure distributor on the prepared bituminous /granular surface cleaned with mechanical broom andas per relevant clauses of section-503 of specifications. @ 0.25 kg per sqm (normal bituminous surfaces)
3
Bituminous Macadam (Providing and laying bituminous macadam with minimum 40-60 TPH capacity hot mix plant using crushed aggregates of specified grading premixed with bituminous binder, transported to site, laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled as per clauses-501.6 and 501.7 to achieve the desired compaction and as per clause 504 of specifications. Using Drum Mix Plant of appropriate capacity. for Grading II (19 mm nominal size, bitumene content 3.50%).
4
Close Graded Premix Surfacing/Mixed Seal Surfacing (Mechanical means using HMP of appropriate capacity not less than 75 tonnes /hour.) Providing, laying and rolling of close-graded premix surfacingmaterial of 20 mm thickness composed of 11.2 mm to 0.09 mm (Type-A) or 13.2 mm to 0.09 mm (Type-B) aggregates using penetration grade bitumen to the required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a Smooth wheeled roller 8-10 tonne capacity & finishing to required level and grade all complete as per clause 508 of specifications. with 60/70 butumen (VG-30)
5
Construction of Shoulders with approved material /selected soil i/c excavation all lifts & leads i/c grading to required slope & camber of 4% and compacting using vibratory roller of 80 to 100 kN static weight to meet requirement as per relevant clause of 400.Earthen Shoulders (CBR value >7)
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