Sarat Chatterjee Road from 0.00 km to 2.00 km, patch repairing work in stretches of Howrah Highway Sub-Division under Howrah Highway Division in the district of Howrah during the year 2025-26

Picking up and removing old bituminous layer or sand sealing coat from old black topped surface and cleaning the exposed surface by scraping and stacking the material as directed. By manual means: From 50 mm to 100 mm thick.

Water Bound Macadam Base Course Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregate, watering including lighting, guarding, barricading and making necessary earthen bundh of one metre width on each side and preparing the bed by necessary cutting or filling, including cost of all materials and hire and labour charges of all men and machinery and compacting to the required density, as perClause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). Grading-II Aggregate (53 mm to 22.4 mm) Using Stone Screening Type B (11.2 mm) Manual Means

Supplying and laying in the specified pattern of the interlocking concrete block pavement (ICPB) with concrete blocks (with concrete grade as per specified as per Table- 1 of IS 15658: 2006) manufactured in steel mould clamped to a vibrating tablr by hydraulic pressure [as per clause no. 6.30 of IRC: SP-63 (2018)] from BIS licencee manufacturer with spacer nib (small protruding profiles on the vertical face of a paver block used as a device for keping minimum joint gap in between the paving blocks as per clause no- 3.26 of IS: 15658) and of specified size and shape with aspect ratio (the ratio of length to thickness of a paver block, as per clause no- 3.3 of IS: 15658) as per table -2 of IS : 15658 with flextural strength/ breking load as per Annexure -G of IS: 15658, on the prepared base course of specified CBR as per table-1 of IRC SP 63 (2018) or else as mentioned in design and drawing with a cushion of compacted bedding sand of 25-35 mm thick (grading of the bedding sand as per clause 6.5.1 of IRC: SP- 63) and filling up the gaps in betwen paver blocks with joint filling sand (the grading of joint filling sand will be as per clause 6.3.2 of IRC SP- 63) and completing the edges with cut blocks as per Cl. No.- 8.7 of IRC SP- 63 (2018) with proper confinement of beding and joint filling sand, compaction, levelling and filling up of the edge gap. 100 mm Thick. Grey

Plain / Reinforced Cement Concrete in Open foundation with or without reinforcements, in any part of foundation of bridges/ culverts with graded stone chips of appropriate nominal sizes, including screening and cleaning of coarse aggregates, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement, as necessary, cost of curing with water, including cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge, cost for quality control, sampling, testing etc. including cost of formwork but excluding reinforcement complete as per drawing and technical specifications. PCC Grade M30

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. 7

LWC @ 1.00% over sl. no. 1 to sl no. 8.01

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