In civil Engineering (Road Works), What is the function of a sand layer underlying paving slab/interlocking blocks?

أفضل جواب: The air void content of bituminous materials is an important control parameter for the quality of bitumen ... الإطلاع على المزيد

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أفضل جواب: in most Company's  IOSH and Nebosh is compulsory  in HSE field  الإطلاع على المزيد