WBPWD/PW(R)/SEPD/PIU-I/NIT-21 OF 2026-2027_SL_1

Excavation in Hard Rock (blasting prohibited) Excavation for roadway in hard rock (blasting prohibited) with rock breakers including breaking rock, loading in tippers and disposal within all lifts and lead upto 1000metres, trimming bottom and side slopes in accordance with requirements of lines, grades and cross sections (Reference to MoRT&H's specification clause 301). Mechanized Method

Excavation for Structures. Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material (Reference to MORT&H's specification 304). Ordinary soil; Manual Means; Depth upto 3 m (With pumping out water including shoring as required.

Excavation in Soil using Hydraulic Excavator CK 90 and Tippers with Disposal upto 1000 metres. Excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead upto 1000m (Reference to MoRT&H's specification clause 301).

Scarifying Existing Bituminous Surface to a depth of 50 mm by Mechanical Means Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material within all lifts and lead upto 1000 meters (Reference to MoRT&H's specification clause 305.4.3).

Granular Sub-Base with Graded Material Plant Mix Method Construction of granular sub-base by providing graded material such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading spreading in uniform layers with motor grader on prepared surface, mixing by appropriate mechanical mixture (with controlled addition of water), and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8),complete as per clause 401 Rate per cum for grading-V Material With NB Variety stone matal/chips. (Payment will be made on the basis of finished compacted volume)

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 400- 13 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. With NB Variety stone matal/chips. (Payment will be made on the basis of finished compacted volume)

Prime Coat Providing and applying primer coat with cationic bitumen emulsion SS1 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). For WBM / WMM Surface: [with Cationic Bitumen Emulsion (Bulk) CSS-1 Type @ 0.85 kg/ sqm] (Payment will be made on the basis of finished surface area)

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 mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). On Granular surface treated with primer: [By using Cationic Bitumen Emulsion RS-1 Type (Bulk) @ 0.275 kg/m2] (Payment will be made on the basis of finished surface area)

Bituminous Macadam Providing and laying bituminous macadam with 100-120 TPH hot mix plant using crushed aggregates of specified grading premixed with approved bituminous [email protected]% (min) for Grading-1and3.4%(min) for Grading-2 by weight of total mix, transported to site, laid over a previously prepared base 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). For Grading II (19mmnominal maximum aggregate size) Layer compacted Thickness 50-75mm Using Pakur variety stone material,and bituminous binder (VG-30 bulk @ 75.00kg./ m3) Using Batch Type HMP of minimum capacity 100-120 TPH. (Payment will be made on the basis of finished compacted volume)