M/o Schemes under Nazul Account-II in Rohini Zone.

Providing and carrying out Cold Milling of the existing bituminous pavement comprising Bituminous Concrete (BC), Dense Bituminous Macadam (DBM) or any other asphaltic layer, using a self-propelled, sensor-controlled cold milling machine equipped with automatic grade and slope control, to remove the existing bituminous layer to a depth ranging from 25 mm to 100 mm or as directed by the Engineer-in-Charge. The work shall be executed in a manner that maintains the line, level, longitudinal profile, cross-fall and camber of the underlying pavement without causing damage or disturbance to the underlying base/sub-base or concrete pavement. The milled surface shall be left clean, uniform, and suitable for laying subsequent bituminous layers. The item includes: Surveying and marking of milling limits; Milling of the existing bituminous layer to the specified depth; Collection, loading, transportation and disposal of surplus milled material (RAP) to the designated location for all leads and lifts, or as directed by the Engineer-in-Charge; Thorough cleaning of the milled surface using mechanical broom, air compressor or other approved means; Rectification of localized damages, depressions, loose patches or distress exposed after milling using approved bituminous materials, wherever required; Maintaining traffic and providing all necessary safety measures during execution; all labour, machinery, fuel, tools, plants, incidentals and other operations required to complete the work. The work shall be carried out in accordance with the relevant provisions of MoRTH Specifications (Latest Revision), IRC:SP:100 (Use of Cold Milling Machine for Asphalt Pavement), IRC:37, IRC:81 and other applicable IRC guidelines, complete as directed by the Engineer-in-Charge. Note: The Reclaimed Asphalt Pavement (RAP) generated from cold milling shall become the property of the contractor. The contractor shall transport, utilize, recycle, or dispose of the RAP material at his own cost. The quoted rate shall be deemed to include the salvage value of the recovered RAP and no separate payment shall be made for the reclaimed material.

Providing and applying tack coat using bitumen emulsion conforming to IS: 8887, using emulsion pressure distributer including preparing the surface & cleaning with mechanical broom.

With medium setting bitumen emulsion.

On bituminous surface @ 0.25kg/sqm.

Providing and applying tack coat using bitumen emulsion conforming to IS:8887, using emulsion pressure distributer including preparing the surface & cleaning with mechanical broom.

With medium setting bitumen emulsion

On W.B.M / W.M.M. @ 0.4kg/sqm

Providing and laying bituminous macadam using crushed stone aggregate of specified grading premixed with bituminous binder, transported to site by tippers, laid over a previously prepared surface with paver finisher equipped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers as per specifications to achieve the desired compaction and density, complete as per specifications and directions of Engineer-in-Charge.

50 to 100 mm average compacted thickness with bitumen of grade VG-30 @ 3.50% (percentage by weight of total mix) prepared in Batch Type Hot Mix Plant of 100-120 TPH capacity.

Providing and laying Bituminous concrete using crushed stone aggregates of specified grading premixed with bituminous binder and filler, transporting the hot mix to work site by tippers, laying with paver finisher equipped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction and density as per specification, complete and as per directions of Engineer-in-Charge.