Sohela Barpali Binka PWD Road to Bisipali

Clearing grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area etc. complete as per direction of the Engineer in charge.

Flank dressing to proper camber including T&P materials etc. complete as per direction of the Engineer in charge.

Construction of embankment with approaved materials obtained from borrow pits with a lift upto 1.5m transporting to site, spreading, grading to required slope and compacting to meet requirement of tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification clause 301.5

Cleaning the existing black topped surface with removal of foreign materials with brooms or soft brushes and finally dusting with old gunny bags and/or compressed air to receive bituminous treatment

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous/granular surface cleaned with mechanical broom as per Clause 503 of MoSRT&H Specifications for Road & Bridge works (4th Revision)

Providing laying and rolling of premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates using S-65 penetration grade bitumen to 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 three wheel 80-100 kN static roller capacity, finished to required level and grades to be followed by seal coat of Type C as per Technical Specification Clause 508 of MoRD by manual means and as per the direction of the Engineer-in-charge.

Providing and laying semi dense bituminous concrete with batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder of 60/70 penetration grade of bitumen, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheelede, vibratory and tandem rollers to achieve the desired compaction as per Clause 508 of MoSRT&H Specifications for Road & Bridge works (4th Revision)

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