tender for patch repair work on roads under development block karchana. - wbm grading - iii providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheeled roller 8-10 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 iii as per mord technical specification clause 405 2 filling pot-holes and patch repairs with open-graded premix surfacing, 20mm. removal of all failed material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat on the sides and base of excavation as per clause 503, back filling the pot holes with hot bituminous material as per clause 510, compacting, trimming and finishing the surface to form a smooth continuous surface, all as per mord clause 3004.2