Kolkata Metropolitan Development Authority Tender

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 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 surfaces treated with primer

Mechanised Mastic Asphalt Providing and laying mastic asphalt by mechanical means done in a centralised batching plant with appropriate built- in pollution control units with specified aggregates and lime stone powder (with Calcium Carbonate content not less than 80%) and approved grade of industrial grade bitumen as per approved design mix, transporting the hot mastic ashphalt to the worksite by thermocontainer with the arrangement of maintaing specified temperature during transport, laying with a paver finisher for spreading and floating the plastic mix uniformly on the surface to the specified width and thickness at correct grade and camber through its heated, distortion free steel float and turning sword distributors, applying uniform size of bitumen coated stonechips at a specified rate, on the laid surface through a power driven chip spreader as per the procedure laid down in Annexure - II of IRC : 107 (2013) all complete as per clause 516 along with IRC : 107 for materials and design mix etc. i) 25 mm Thick