Re-construction of NH-37 to Betoni Namghar Road of Digboi LAC under SOPD-G for the year 2019-20 under Digboi Territorial Sub Division-under PWD, Digboi and Margherita Territorial Road Division, Margherita-Digboi LAC.

Amount

4.7/3/A - WBM Grading 3 - Using stone screening Type-B 11.2 mm for Gr.III - Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 KN in stages to proper grade and camber, applying and brooming stone screening to fillup the interstices of coarse aggregate,watering and compacting to the required density Grading 3 as per technical specification clause 405. (A) By Manual means

5.1(i) -Prime Coat :Providing and applying primer coat with bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0 kg/sqm using mechanical means as per Technical Specification Clause 502

5.2(i): Tack Coat. Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

16.10 A (I) - Semi - Dense Bituminous Concrete (Providing and laying semi dense bituminous concrete with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.5 to 5% of mix and filler transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment,rolling with smooth wheeled,vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no.508. complete in all respect.