WBMAD/ULB/KM/NIT-01/ Road/2026-27/SlNo-06

Water Bound Macadam Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density (Reference to MoRT&H's specification 404). A) By Manual Means (i) Using Sulvage materials Ref : -Ch.04, Pg-106, item no. 12 of NH Schedule of Rates 2019-20

Prime Coat Providing and applying primer coat with cationic bitumen emulsion SS1grade conforming to IS:8887 on prepared porous granular surface including clearing of road surface and spraying primer using mechanical means (Reference to MORT&H's specification clause 502). On WMM/WBM surface @ 0.70-1.0kg /sqm Ref. Ch.05, Pg-110, item no. 1A(i) of NH Schedule of Rates 2019-20

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with echanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). On bituminous surface @ 0.20kg-0.3kg /sqm. Ref. Ch.05, Pg-110, item no. 2A(i) of NH Schedule of Rates 2019-20

Bituminous Macadam Providing and laying bituminous macadam using crushed aggregates of pecified 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 (Reference to MORT&H's specification clause 504). With Continuous Type HMP (60-90 TPH) for Grading 2 (19 mm nominal size) Ch.05, Pg-112, item no. 39(ii) of NH Schedule of Rates 2019-20

Providing, laying and rolling of open - graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using viscosity grade bitumen of approved grade 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 smooth wheeled tandem or other approved type roller 8-10 tonne capacity, finished to required level and grades (Reference to MORT&H's specification clause 510). Mechanical method using approved grade Bitumen and HMP of appropriate capacity not less than 75 tonnes/hour Item No. 10.4.. Page No. 167 of S.O.R of P.W.(R) NH,2019-20 (0 Corri)

Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using. Type B seal coats (Reference to MORT&H's specification clause 511) 12(i) suitable approved grade. Providing and laying of premix sand seal coat with HMP using approved crushed stone chipping and viscosity grade paving bitumen of suitable approved grade. Item No. 5.12..(ii) Page No. 121 of S.O.R of P.W.(R) NH,2019-20 (0 Corri)

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