03/2026-27/RWD/SIMDEGA

Granular Sub-Base with Graded Material (Table:- 400-1) Construction of granular sub-base by providing close graded Material, mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401. S.O.R Item No. 4.01 B (i)

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, replacing cement by fly ash to the extent of 20 percent, 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 129 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. S.O.R. Item No. 6.4

Direction and Place Identification Signs with size more than 0.9 sqm size Board.(Providing and erecting direction and place identification retro- reflectorised sign as per IRC :67 made of high intensity grade sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick or Aluminium composite material sheet with overall thickness of 4 mm with area exceeding 0.9 sqm fixed over back support frame of min 40 x 40 x 5 mm Angle mounted on two nos. of mild steel circular pipe 65 NB, 3.2mm thickness and 4.5m meter total height firmly fixed to the ground by means of properly designed foundation with M 25 grade cement concrete 45 cm x 45 cm x 60 cm, 60 cm below ground level as per approved drawing) S.O.R. Item No. 8.06

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