Thus, the quantity of cement required for 1 cubic meter of concrete = 0.98/0.1345 = 7.29 bags of cement. The quantities of materials for 1 m3 of concreteproduction can be calculated as follows: The weight of cement required = 7.29 x 50 = 364.5kg. Weight of fine aggregate (sand) = 1.5 x 364.5 = 546.75 kg.