KADA 2026-27

Construction of Granular sub-base by providing HBG material confirming to Grading - VI of MoRT&H (Table 400-1 & 400-2) including cost, and conveyance of all materials to work site and spreading in uniform layers with motor grader or by approved means, on prepared surface mixing by mix-in-place method with rotavator / approved means at OMC and compacting with vibratory roller to achieve CBR value minimum of 30% at 98% of dry density and PI value maximum 6, complete for finished item of work as per MoRT&H Specification 401 (5th revision) including contractors profit & Over head charges excluding Seignarage charges etc

Laying of Plain Vibrated cement concrete pavement with Nominal Mix VCC ( 1:2:4 ) Prop Equalent to M20 Grade as per IS 456-2000 over a prepared sub base, with 43 grade cement , coarse and fine aggregates conforming to IS : 383, mixed in a concrete mixer of not less than 0.2 cum capacity and laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the formwork and providing mastic pad joints etc as per drawing), spreading the concrete with sholvels, rakes, compacted using needle and plate vibrators in continuous operation and curing of concrete etc ., complete for finished item of work .

Cutting transverse contraction joints 3 to 4 mm wide and 1/3 rd depth of concrete slab using concrete groove cutting machine with diamond studded saw within 24 - 48 hours of casting of CC Pavement. complete including subsequent widening of the groove 8 to 10 mm. wide at top having depth of 15 mm. as directed by Engineer incharge.