B.T ROAD REPAIR WORK OF EXISTING ROAD SECTION AMBIKAPUR TO RAJPURIKHURD KM 0.000 TO 7.830 Total Length 7.830 KM OF AMBIKAPUR RAMANUJGANJ GARHWA ROAD N.H-343

Item Description

(B) Wet Mix Macadam / Interlocking layer laying using by Grader (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.) as per clause 406.

Prime Coat over WMM/WBM (Providing and applying primer coat with bitumen emulsion or cutback bitumen 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 as per clause 502 & 112) (i) with bitumen emulsion (SS-1, grade confirming to IS:8887) @0.85 kg/sqm

Tack coat (Providing and applying tack coat with bitumen emulsion RS-1, grade confirming to IS:8887 using emulsion pressure distributor on the prepared bituminous surface cleaned with mechanical broom) as per clause 503 & 112. (i) on Bituminous surfaces @ 0.25 kg per sqm

Bituminous Macadam (Providing and laying bituminous macadam as per clause 504 with mixed prepared in 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 to achieve the desired compaction) (A) With Mechanical paver finisher (ii) for Grading II (19 mm nominal maximum size, bitumen content 3.40%)

Close Graded Premix Surfacing/Mixed Seal Surfacing (Mechanical means using minimum 40-60 TPH capacity of HMP. Providing, laying and rolling of close-graded premix surfacing material of 20 mm thickness using 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, and finishing to required level and grade, complete as per clause 508) (I) With mechanical paver finisher (A) With bitumen (ii) Type B (13.2 mm to 0.09 mm size aggregates )

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