Details: providing, laying and spreading of granular sub-base by providing coarse graded material (table 400-2), spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at omc, and compacting with vibratory roller to achieve the desired density, complete as per mort&h specification clause - 401 including all material, labour, machinery, lighting, guarding and maintenance of diversion. grading - iii material providing and laying lean cement concrete 1:4:8 in 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 concrete mixer, laid manually, compacted with surface
Sector: RDPR