Micro-Surfacing on various PWD roads under East Maintenance Zone, PWD, Delhi during 2026-27.

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 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.

40/50 mm compacted thickness with bitumen of grade VG- 30 @ 5.5% (percentage by weight of total mix) and lime filler @ 3% (percentage by weight of Aggregate) and waste plastic additive @ 8% (percentage by weight of bitumen) prepared in Batch Type Hot Mix Plant of 100- 120 TPH capacity

Multiplying factor @ 0.973% (- 0.027)

Add cost index @ 4.03%

Providing and laying micro surfacing course of 6 to 8 mm thick confirming to Morth Specification of Type-III grading (as per MoRTH Table 500-31) consisting of a mixture of dry fine aggregates, Portland cement filler, polymer modified cationic quick setting bitumen emulsion having 60% binder (as per Table 500-32 of Morth Specification), chemical additives & water in the following proportion. (i) Quantity of mix* (kg/m2) = 11.1 - 16.3 Kg/Sqm (ii) Polymer Modified Bitumen (PMB) emulsion @ 5.5% - 10.50% by weight of fine aggregate. (iii) Mineral filler (Cement)= 0.5 - 3.0% by weight of fine aggregate. (iv) Additive = As Needed (Av 1.5% by weight of fine aggregate) (v) Water = As Needed Note: Item includes proportioning mixing, laying of micro-surfacing course using mechanized mixing laying unit after vacuum cleaning of surface complete as per the specifications and direction of Engineer-in-charge.