RESURFACING OF CERTAIN ROADS INCLUDING REPAIRS OF ROAD FURNITURE AT CHAF BANGALORE

Repair to potholes any depth, not exc 1 sqm each including sweeping free from dust and mud or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 25 mm in depth, making good by filling in screened & graded road metal, watering and well ramming (including supply of road metal) complete all as specified and directed.

All as per item No 1 here in above, but making good by applying tack coat using paving bitumen @ 5 Kg per 10 Sqm putting in premixed bituminus macadam, well rammed and sealed with binder 9.8 kg per 10 Sqm blinded with 0.09 cum of stone chipping, 6.3 mm size and again well rammed (including supply of premix mecadam, binder and chippings) depth of potholes exc 30mm complete all as specified and directed.

M&L for premix bituminous macadam laid / rolled and compacted to required gradient and camber (consolidated thickness 75mm or less) using paving bitumen of any penetration as binder 4% by weight of total mix complete all as specified and directed by Engineer-in-Charge.

Preparing black top surfaces by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt etc. and applying evenly a priming / tack coat with bituminous primer using paving bitumen (VG-30) at 5 Kgs/10 Sqm of road surface using paving bitumen complete all as specified and directed.

M&L for bituminous premix semi dense asphaltic concrete 40mm consolidated thickness with 5.5% binder content of paving bitumen VG-30 (by weight of total mix) using 6 to 8% waste plastic by weight of bitumen content (only plastic conforming to Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), PET and Polyurethane conform to the size passing 2.36 mm sieve and retained on 600 micron sieve shall be used) and not to be heated more than 180°C while mixing. Waste plastic mixing should be done using dry process as per para 6.1 of IRC:SP:98-2013. The waste plastic will not be provided by the department and the contractor to refer IRC:SP:98-2013 before quoting the rates. The mix shall be laid with mechanical paver, rolled and compacted to required camber and gradient with 8 to 12 tonne power roller and tandom vibratory roller complete all as specified and directed.

M&L for cleaning the road surfaces of dirts, seals, oil grease, and foreign materials etc. and applying 2.5mm thick marking strips/lines, dashes, arrows, (retro reflective) of white or yellow colour using hot thermo plastic material by fully/ semi automatic thermoplastic paints applicator machine fitted with profile shoe glass beads dispencer, propan tank heater and profile shoe heater drive by operator on existing/ new road surfaces complete all as specified and directed. (glass beads shall not be less than 300 gms per sqm).

S&F two way reflective road stud cat eye reflective type of ABS plastic body of dimension 100mm x 100mm x 20mm, reflective panel of amber, red/ white/ yellow/ blue/ green colour with dry & wet reflectivity, fixed at site as per manufacturer's instructions including taing down existing complete all as specified and directed. (Make : 3M/ Dark Eye/ Sinor Infrastructure or equivalent).