WBPWD/R/EE/S24PGSHD/NIT-14 of 2025-2026

Maintenance of Non-bituminous Base and Sub-Base or WBM Road Patching of potholes by draining water, cutting the pothole area to rectangular shape with vertical edges, removing all loose materials, screening and stacking the same for reuse with new materials as per requirement, filling the pothole area with additional volume of crushed stone materials / laterite / Jhama / broken shingles / coated stones of Pakur variety etc. and screenings as applicable, and compacting the same with static roller as per Water Bound Macadam Specification, including cost of all materials and machineries. Using Grading-2 aggregates - 0.21 m3 & Type-B screening - 0.21 m3/m3 (The payment is to be done based on loose net volume of coarse aggregates only).

Providing and applying primer coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 and requisite quantity on prepared surface of granular base including cleaning of road surface and spraying primer using Mechanical means including cost and carriage of bitumen emulsion and all other incidental costs of work complete as per Clause 502 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). For WBM / WMM Surface: (with primer (MS- Type) @ 0.85 kg/sqm) Mode of measurement on bais of finished surface area in sq/m)

Repair to pot holes by removal of failed material, trimming the sides to vertical and leveling the bottom, cleaning the same with compressed air or any appropriate method filled with B.M (thickness not more than 75 mm in single layer) applying bitumen emulsion prime coat at the bottom and bitumen emulsion tack coat on sides and on bottom as per technical specifications Clauses 502 and 503 for Rural Roads of MORD.(Including Stacking of coarse aggregrate)

Patch repair on already filled pot holes with BM with 6 mm premix carpet using premixed stone chips of approved quality with hot matrix using 0.80 m3 of 11.2 mm chips and 0.25m3 of 5.6 mm chips per 100 m2 of surface, including stacking and preheating the stone chips on suitable pans and intimately mixing the hot chips separately with hot matrix @ 70 kg per m3 of stone chips, laying the mixture uniformly over the surface and rolling with power roller, after hand packing and pinning adequately to ensure a compact surface.

Patch repair on already filled pot holes with BM with 20 mm premix carpet and seal coat Type B as per drawings and technical specification Clause 1904.2 for Rural Roads of MORD. (Including Stacking of coarse aggregrate)

Dressing and chilchalling Road flanks including cutting and filling with earth up to 150 mm average thickness finished with outward cross-grade of 1 in 30.

Goods and Services Tax(GST)@18%

Labour Welfare Cess(LWC)@1%

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