<p>CB: Providing clay blanket/clay cover by carried earth supplied at contractor's own cost including royalty in different thickness over the side slopes or crest of the road embankment with selected soil (clay content minimum 80% and silt content 0-20%) including throwing clay in layers not exceeding 150 mm in thickness, clod breaking, benching the side slopes and compacting to 95% of maximum dry density at optimum moisture content with reference to laboratory density test AASHTO standard hammer with suitable equipment dressing etc. complete as per direction of Engineer-in-charge.Composition of specified soil must be confirmed by laboratory test before use. (compaction will be done by the contractor with approved equipment including all ancillary charges for compaction and testing) as per direction of Engineer in charge. Payment will be made on compacted volume.</p>