CWE/Y-66/2022-23

Amount

Scarifying or picking gravelled, macadam or bituminous macadam surfaces, depth exceeding 50mm but not exceeding 100mm deep and area not exceeding 400sqm all as specified and directed.

Water bound macaadam (Compacted thickness) laid with coarse aggregate of grading 2 (63mm to 40 mm size) using granite, trap or basalt of best quality locally available spread and rolled with 10 to 12 tonnes power roller, consolidated to required gradient and camber, complete all as specified.

Preparing unsurfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally the cleaned surfaces with power sweeper or compressor to remove all loose dirt etc, applying evenly a priming/ tack coat with bituminous primer using paving bitumen @ 10 kg per 10 sq metre of road surface complete all as specified and directed.

Providing premix bituminous macadam (consolidated thickness 75mm or less) with 4% binder content of paving bitumen by weight of total mix, rolled and compacted to required camber and gradient with 8 to 10 tonne power roller, complete all as specified and directed. Note:- Bituminous macadam shall be mixed in hot mix plant, transported and shall be laid in single layer with self propelled mechanical paver, rolled with vibrator roller.

Preparing black top surfaces by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surfaces with power sweeper or compressor to remove all loose dirt etc., applying evenly a priming/ tack coat with bituminous primer using paving bitumen at 5 kg per 10 sq metre of road surface, laying bituminous premix semi dense asphaltic concrete 40mm consolidated thickness with 5.5% bitumen binder content by weight of total mix using 20mm crushed stone aggregate, rolled and compacted to required camber and gradient with 8 to 10 tonne vibrator power roller, complete all as specified and directed. Note:- Bituminous premix semi dense asphaltic concrete shall be mixed in automatic temperature controlled hot mixing plant, transported and premix carpet shall be laid in single layer with self propelled mechanical paver, rolled with vibrator roller.

Reinforced concrete pipes, class NP3, laid & jointed complete with collars, bore of pipe 300mm, complete all as specified & directed.

Marking lines, dashes, arrows etc of width 10 cms on black top/ concrete surfaces of road using hot applied thermo plastic road marking paint 2.5 mm thick (white/ gold, yellow) mixed with radium glass beads @ 250gm/ Sqm with automatic machine to provide reflectivity and night vision (approx temp being 200°C at the time of laying) including cleaning the surface of all dirt, dust and other foreign material complete all as specified. Note:- Road marking lines at the centre of road shall not be continuous, whereas the lines at outer sides of road shall be continuous i.e in one length.

Havish Construction