Details: construction of granular sub-base by providing close graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with front end loader at omc, and compacting with vibratory roller to achieve the desired density, complete as per clause 401. grading-i material 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/ , 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. construction of un-reinforced, dowel jointed, plain cement concre
Sector: Road development