Details: 3) wbm grading - 3providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kn in stages to proper grade and camber, applying and brooming, stone screening to fill up the interstices of coarse aggregate, watering and compacting to the required density 'grading 3' as per mord technical specification clause 405. (a) by manual means providing and applying tack coat using hot straight run bitumen of grade vg-30, including heating the bitumen, spraying the bitumen, cleaning and preparing the existing road surface as per specifications: on w.b.m. @ 0.75 kg/ sqm. 20 mm thick open-graded premix carpet using bituminous (viscosity grade/ modified bitumen) binder providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using viscosity grade bitumen or emulsion to required li
Sector: Buildings