Details: a-road work surface drainsconstruction of unlined surface drains of average cross- sectional area 0.40 sqm in ordinary soil to specified lines, grades, levels and dimensions. excavated material to be used in embankment with a lift upto 3 m and lead of 50 m (average lead 25 m) as per mord technical specification clause 307.(i) surface drains in ordinary soil(a) manual means water bound macadam sub-base / base using jhama brick aggragate2) wbm grading - 3providing, laying, spreading and compacting jhama brick aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing rolling with three wheel roller 80-100 kn in stages to proper grade and camber, applying and brooming binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density grading- 3 as per mord technical specification clause 4
Sector: Buildings