repairing work ( by pre coated stone materilas, brick stiching, jhama consodilation, bamboo pilling, kutcha drain cutting etc. ) for different roads of ranaghat highway sub-division under nadia highway division no.-ii, p.w. ( roads ) directorate in the district of nadia during the year 2022 - 2023.-1.00 supply of pakur variety stone aggregrates of different size at kalyani stavk yard under ka;lyani highway sub-division. a ) 22.40 mm size 2.00 supply of pakur variety stone aggregrates of different size at kalyani stavk yard under ka;lyani highway sub-division. b ) 11.20 mm size 3.00 pre-coating stone aggregates with hot matrix @ 56 kg / m3 of net volume of stone aggregate in concrete mixer including preheating the stone aggregate at a suitable temperature including the cost of carriage of the stone aggregate at the mixing yard and carriage of the pre-coated materials for dumping at a suitable place as directed including cost and carriage of bitumen and hire charges of machineries and all incidental charges complete as per direction of engineer-in-charge. 4.00 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 bituminous surface ( using bitumen emulsion at the rate of 0.20 to 0.30 kg per sqm. ) 5.00 pre-coating stone aggregates with hot matrix @ 56 kg / m3 of net volume of stone aggregate in concrete mixer including preheating the stone aggregate at a suitable temperature including the cost of carriage of the stone aggregate at the mixing yard and carriage of the pre-coated materials for dumping at a suitable place as directed including cost and carriage of bitumen and hire charges of machineries and all incidental charges complete as per direction of engineer-in-charge. a ) distance upto 10 km 6.00 pre-coating stone aggregates with hot matrix @ 56 kg / m3 of net volume of stone aggregate in concrete mixer including preheating the stone aggregate at a suitable temperature including the cost of carriage of the stone aggregate at the mixing yard and carriage of the pre-coated materials for dumping at a suitable place as directed including cost and carriage of bitumen and hire charges of machineries and all incidental charges complete as per direction of engineer-in-charge. b ) distance above 10 km upto 20 km 7.00 supplying and filling of empty cement bags with dry earth or sand, stitching the bag ( cost of thread included ) and carrying and placing them in position and all incidental charges complete but excluding cost of sand and gunny bags. 8.00 water bound macadam sub base by consolidating jhama metal / laterite chelly or stone metal / shingles of specific size in hard crust to requisite thickness ( measured after compaction ) in layers including screening of metals etc. as necessary, hand packing, sweeping, watering and rolling in stages with power roller to proper line, grade and camber, lighting, guarding & barricading and making necessary earthen bundh of one metre width on each side where necessary to protect edges and preparing the bed by necessary cutting or filling and rolling all complete including the cost of all materials and hire and labour charges of all men and machineries and compacting to the required density, as per clause 404 of specifications for road & bridge works of mort&h ( 5th revision ) . ( i ) for construction of sub base by consolidating jhama metal ( 63 mm to 45 mm ) with moorum screening : 9.00 close bamboo walling made of 65mm to 75mm dia. bamboos ( in single line ) driven about half-length into the ground side by side, with stout stays at an interval of 1m, 3nos. of half split bamboo runner of same dia fitted and fixed with nails etc. complete as per direction. ( measurement to be taken along the length of piling after finishing the works ) . ( i ) with bamboos of length above 2.00 m upto 2.50m 10.00 close bamboo walling made of 65mm to 75mm dia. bamboos ( in single line ) driven about half-length into the ground side by side, with stout stays at an interval of 1m, 3nos. of half split bamboo runner of same dia fitted and fixed with nails etc. complete as per direction. ( measurement to be taken along the length of piling after finishing the works ) . ( i ) with bamboos of length above 2.50 m upto 3.00m 11.00 mending potholes and depressions by stitching picked jhama bricks with one brick-on-edge laid in herring bone pattern and including necessary cushion of sand below the soling ( and in between layers ) including cutting the pothole area to rectangular shape with vertical edges, removing all loose materials, finishing the surface to match with adjacent areas complete as per direction. a ) one brick-on-edge laid in herring bond pattern on a layer of brick flat ( thickness 75 mm. plus 125 mm ) 12.00 mending potholes and depressions by stitching picked jhama bricks with one brick-on-edge laid in herring bone pattern and including necessary cushion of sand below the soling ( and in between layers ) including cutting the pothole area to rectangular shape with vertical edges, removing all loose materials, finishing the surface to match with adjacent areas complete as per direction.b ) one brick-on-edge laid in herring bond pattern ( thickness 125 mm ) 13.00 cutting kutcha drain of 600 mm wide and depth up to 300 mm, including disposal of excavated material in embankment slopes within a lead of 50 m. ( a ) through ordinary soil.