Public Works Roads Department Tender

Supplying, spreading and compacting Sand to required thickness, in layers not exceeding 150 mm to proper gradient and camber, inundating each ayer by water and packing and ramming layer by layer to achieve desired compaction, including lighting, guarding, barricading and making adequate earthen bundh where necessary, curing with water as per direction, ending cracks and depressions by ramming wherever necessary.

Supplying and laying Polythene Sheet (150 gm/ Sqm) over damp proof course or below flooring or roof terracing or in foundation trenches.

Construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonnes vibratory roller, finishing and curing. (As per clause 601 of specifications for Road & Bridge Works of MoRT&H (5th Revision).

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 cement content as per IRC: 15-2011, coarse and fine aggregates conforming to IS:383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batch mix plant and appropriate weigh batcher using approved mix design (as per IRC:44 2008), laid in approved fixed side formwork (steel channel, laying and fixing of 125 icron thick polythene film, wedges, steel plates including levelling the formwork as per drawing, spreading the concrete with shovels, rakes, compacted using needle, screed and plate vibrators and finished in continuous operation including provision of contraction and expansion, construction joints, applying debonding strips, primer, polysulphide sealant, dowel bars, near approaches to bridge/ culvert and construction joints, admixtures as approved, curing of concrete slabs for 14-days, using curing compound (where specified) and water finishing to lines and grade as per drawing and Technical Specification Clause 1501 for Rural Roads of MORD.Characteristic Flexurl strength of concrete shal not be less than 4.5 Mpa. Including 25 mm dia MS dowel bars and 16 mm dia tor for tie bars. With Batch Mix Plant

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