Patch repairing work in stretches of Nabanna Zone of Howrah Highway Sub-Division under Howrah Highway Division in the district of Howrah during the year 2025-26

Repairing pot-holes and making up small depressions with ramming or power rolling including screening, cleaning chips or metals and washing,drying as necessary and heating the chips or metal where necessary, cutting pot holes to regular shapeswith vertical edges, cleaning the disintegrated materials, heating matrix and applying tack coat(including sides), finishing the top of repairedsurface levelled with adjoining area, including cost and carriage of stone aggregates and matrix, including cost of applying tack coat. With premixed Chips or Bajrees with 54 kg of bitumen per m3 of loose net volume of stone chips using concrete mixer machine. Using Mobile HMP (Light duty)

Open Graded Premix Surfacing with Cationic Bitumen Emulsion using 13.2 mm (@ 0.018 m3/ m2) and 11.2 mm (@ 0.009 m3/ m2) size stone aggregates, premixed with Cationic Bituminous Emulsion (M.S. grade) conforming to IS : 8887-1970 @ 21.5 kg per 10 m2 of surface, including cleaning, moistening the surface, applying tack coat with cationic bitumen emulsion, screening, cleaning and washing the stone chips, intimately mixing with emulsion using concrete mixer, laying the mixture uniformly over the surface and rolling with power roller after hand packing and pinning adequately to ensure a compact surface all complete as per specification and direction of the Engineer-in-charge including cost and carriage of stone materials and emulsion, including cost of labour, hire and running charges of road roller and other tools and plants and cost of all other incidental charges including hire charges and cost of fuel and lubricants of machineries and equipment for construction and quality control as per Technical Specification Clause 508.2 for Rural Roads of MORD.

Seal Coat 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, 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 Cationic Bitumen Emulsion (@ 10.50 kg / 10 sqm.)

GST @18.00% over sl.no. 1 to sl.no. 3

LWC @ 1.00% over sl. no. 1 to sl no. 4.01

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