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 1000m as per relevent clauses of section-300 of specification.
2
Scarifiying the existing bituminous road surface to depth of 50mm and disposal of scarified material withyin all lifts and lead upto 1000 metre (by mechanincal means).
3
Prime Coat : Providing and applying primer coat with bitumen emulsion (SS-1) on prepared surface of granular base including clearing of road surface and spraying primer at the rate of 0.85 kg/sqm using mechanical means
4
Tack Coat : Providing and applying Tack coat with bitumen emulsion (RS-1) using emulsion pressure distributor on the prepared bituminous/granular surface cleaned with mechanical broom and as per clouse 503 of section 500. Normal bituminous surface @ 0.25kg/sqm
5
Construction of granular sub-base by providing well graded cum 849.00 material like natural sand crushed gravel or crushed stone having CBR >30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification.
6
Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density in accordance to Table No. 400-12, 400-13 and as per clause of section 406 of specifications.
7
Providing and laying bituminous macadam 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 40-60 TPH Batch mix Plant and Paver Finisher Hydraustatic with Sensor control for Grading I(40 mm nominal size ) bitumen content 3.4%
8
Providing, laying and rolling of close-graded premix surfacing material 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.(Mechanical means using HMP of appropriate capacity not less than 75 tonnes /hour.)
9
Providing, laying and rolling of Moorum at site as per instruction of Engineer in charge(incl. Royalty)
10
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