Details: construction of embankment with approved material having cbr>7 obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required and compacting to meet requirement of table 300-1, 300-2 and as per relevent clauses of section-300. 4.12 crusher run macadam sub base/base courseproviding crushed stone aggregate, depositing on a prepared surface by hauling vehicles, spreading and mixing with a motor grader, watering and compacting with a vibratory roller to clause 410 to form a layer of sub-base/base in accordance to table no. 400-14, 400-15 and as per clause of section 407 of specifications.(ii) for 37.5 mm maximum size 6.1 dry lean cement concrete sub- baseconstruction of dry lean cement concrete sub- base over a prepared sub-grade or drainage layer 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 6
Sector: PWD