Corporation Of Chennai Tender

Providing and laying Granular Sub Base (GSB) layer of 200 m.m. compacted thickness on the prepared Sub Grade with approved coarse Graded material ;of; minimum CBR Value 30 grading confirming to Table 400 1/400 2 Grading 1 of MORTH Revision IV, including screening, spreading in uniform ;layer with motor; grader, watering and premixing at ;optimum moisture content, compacting with power and vibratory roller of 80 to 100 KN static weight to not less than 98pct. of the maximum laboratory dry density as per IS:2720 (Part 8) and fine dressing to required grade and cross slope as shown on the drawing or as directed by the Engineer including obtaining and transporting all materials from approved Quarry Site to Work site with all lifts and lead by Mechanical Transport head load or any other mode of transportation including labour, tools, equipment, safety measures testing and incidentals necessary to complete the work as per MORTH specification clause 401 and as; directed by Engineer..

Providing and laying Tackcoat over the existing bituminous surface using 2.0 kgs of bitumen emulsion (Rapid Setting 1) per 10 Sq.m area including cost of bitumen emulsion at the site, including labour charges for preparing the surface, and applying the required quantity of bitumen emulsion as Tack Coat using bitumen sprayer etc., complete as per Clause 503 of MoRT &H Specifications Rev.5

Providing Prime Coat 7Kg/10 m2 with Bitumen Emulsion (slow setting) including cost of bitumen at the site, including labour charges for preparing the surface and applying required quantity of bitumen emulsion as Prime Coat using bitumen sprayer etc., complete over wet Mix Macadam as per clause 502 of MORT & H specifications