WBPWD/EE /HD/NIT_ 28 /2025_2026

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. (b) By mechanical means : (i) From 25 mm to 50 mm thick.

Providing and applying Bituminous profile corrective course using Mobile hot mix plant (Light duty) and using aggregate of Grading-2 of Table-3.3 premixed with 75kg of bitumen per cum, transported to site laid over apreviously prepared surface at specified laying temperature to the required grade, level,and alingment as per specification to achieve desired compaction including cost and carriage of stone materials and bitumen, hire charges of machinery and equipment cost of fuel and lubricants and wages of operational staffs quality control complete as per direction of Engineer in charge

Providing and applying Tack coat with Cationic Bitumen Emulsion 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). i) On Granular Surface (Tack coat @ 0.275 kg /sqm)

On Bituminous Surface :-(Tack coat @ 0.25 kg /sqm)

Repairing Potholes and making up small depression with power roller including screening cleaning chips or metal and washing drying as necessary and heating the chips or metal where necessary cutting potholes to regular shapes with vertical edges cleaning the disintegrated materials heating matrix and applying tack coat @ 0.225kg/m2 finishing the top of repaired surface levelled with adjoining area including cost and carriage of stone aggregate and matrix and including cost of applying tack coat (Tack coat is to be considered separately) i) With premixed chips with 54kg /m3 of bitumen per m3 of loose net volume of stone chips b)Using Mobile Hot Mix plant (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 etc..

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, co By Manual Means With Hot Bitumen Binder (@ 6.80 kg / 10 sqm.)

Add GST @ 18%

Add Labour Welfare Cess @ 1%