WORK NO 5

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on preared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achive the desired denisty, complete as per Technical Specification clause 401.

Providing laying spreading and compacting stone aggregates of water bound macadam specification including spreading in uniform thickness hand packing-rolling with 3- wheeled steel/vibratory roller 80-100 tonnes in stages to proper grade and camber applying and brooming requisite type of screening/binding materials to fill-up the interstices of course aggregtate watering and compacting to the required density grading 3 as per Technical Specification clause 405.

Construction of un-reinforced, dowel jointed at expansion and construction joint only, plain cement concrete pavement, thickness as per design, over a prepared sub base, with 43 grade cement or any other type as per Clause 1501.2.2 M 30 (Grade), coarse and fine aggregates conforming to IS: 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a concrete mixer of not less than 0.2 cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the formwork as per drawing), spreading the concrete withshovels, rakes, compacted using needle, screed and plate vibrators and finished in continuous operation including provision of contraction and expansion, construction joints, applying debonding strips, near approaches to bridge/culvert and construction joints, admixtures as approved, curing of concrete slabs for 14-days, curing compound (where specified) and water.

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