MICRO SURFACING ON VARIOUS PWD ROADS UNDER NORTH ZONE, PWD NEW DELHI DURING 2026-27

Providing and laying micro surfacing course of 6 to 8 mm thick confirming to Morth Specification of Type-III grading (as per 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 microsurfacing course using mechanized mixing laying unit after vacuum cleaning of surface complete as per the specifications and direction of Engineer-in-charge.