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. (The payment is to be done based on lose net volume of Course aggregrates only) Using Gr.-II agreegrate of 1.00 m3 of stone screening (Type B) of 0.21 m3

Primer coat Providing and applying primer coat with Cationic Bitumen Emulsion of approved grade (MS-1 Packed Type) 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). (i) For WBM / WMM Surface: (with primer SS-1 @ 0.85 kg/m2) (Mode of measurement: on the basis 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. (Payment to the Contractor is to be made on the basis of finished compacted volumes of potholes)

Track Coat Providing and applying tack coat with Cationic Bitumen Emulsion (M.S grade) of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). On bituminous Surface using bituminous emulsion @ 0.25 kg/sqm

Tack Coat Providing and applying tack coat with Cationic Bitumen Emulsion (M.S grade) of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). On bituminious surface using bituminous emulsion @ 0.275 kg/sqm)

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. Track Coat considered seperately

Providing and laying Premixed Seal Coat (Type B) with approved quality sand/grit @ 0.6 m3/ 100 m2 and bitumen binder on thoroughly cleaned black top surface coated with tack coat, including heating and mixing cleaned sand/grit (100 % passing through 2.36 mm sieve and retained on 180 micron sieve) uniformly with bitumen binder (VG-30 Packed), laying and spreading the mix at an uniform rate using suitable means, brushing the surface, if necessary, to ensure uniformity, followed by rolling with power roller including the cost and carriage of binder and aggregates, cost of heating the binder and aggregates and all other incidental charges, cost of fuel and lubricants, including hire charges of machineries, tools & plants required for construction and quality control complete as per Clause 511 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). By Mechanical Means With Hot Bitumen Binder (@ 6.80 kg / 10 sqm.)

Goods and Services Tax(GST)@18%

Labour Welfare Cess(LWC)@1%

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