WBPWD/PW(R)/SE/EHC/NIT-07 of 2026-27

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 40013 revised vide table 2 of IRC : 109 (2015) 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 .The thickness of a single compacted layer shall not be less than 75 mm.(Reference to MoRT&H's specification 406. Using Pakur variety of stone aggregates of different sizes.

Prime Coat Providing and applying primer coat with cationic bitumen emulsion CSS1(Bulk) grade 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 surface . Using Cationic emusion CSS-1@ 0.85kg /sqm

Dense Graded Bituminous Macadam Providing and laying dense graded bituminous macadam with 100-120 TPH batch type HMP using crushed aggregates of specified grading, premixed with bituminous binder of approved grade @4.0% (min) for Grading-1 and 4.5% (min) for Grading-2 by weight of total mix and filler (hydrated lime) as per table 500-10 and mix design done as pertable 500-11 and job mix formula as per clause 505.3.3 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 wheeled ,vibratory tandem roller and with pneumatic tyre roller of 12 to15 tonne weight with a pressure at least 0.56MP a as directed by E-I-C, and to achieve the desired compaction as per MORT&H specification clause No.505.3.5 complete in all respects (Reference to MORT&H's specification clause 505). For Grading 2 (26.5 mm nominal maximum aggregate size). Using Pakur variety of stone aggregates of different sizes.

Bituminous Concrete Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder of approved grade @5.4% (min) for Gr.-2 ,as pertable 500-17, and mix designd one as per table 500-10 and job mix formula as per cl.505.3.3 and filler(hydratedlime), transporting the hot mix to worksite, laying with a hydrostatic paverfinis her with sensor control to the required grade,level and alignment,rolling with smooth wheeled,vibratory tandem roller and with pneumatic tyre roller of 12 to15 tonne weigh twitha pressure at least 0.56MP a as directed by E-I-C to a chieve the desired compaction as per clause no507.3.5 complete in all respects ref.toMORTH specification clauseNo.507 For Grading-2 ( (13.2 mm nominal maximum aggregate size). Using Pakur variety of stone aggregates of different sizes.

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (Bulk,RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). On Granular surface treated with primer. Using Cationic emulsion RS1 @ 0.275 /sqm.

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion ( Bulk, RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). On bituminous surface Using Cationic emulsion, RS1@ 0.25kg /sqm

Construction of Subgrade and Earthen Shoulders Construction of sub-grade and earthen shoulders with approved material obtained from borrow pits with all lifts & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table No. 300-2 (Reference to MoRT&H's specification clause 305).

Boulder Apron Laid in Wire Crates Providing and laying of boulder apron laid in wire crates made with 4mm dia wire dia not less than 4mm GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh Mesh size not more than 150mm (weaved diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 40 kg each ( Tensile strength 300-450mpa, size of wire crates 3.0mx1.50mx1.25 m) (Reference to MORT&H's specification 2503).