2022-6-7 · Considering voids in sands, we assume that materials consist of 60% voids. That is, for 1m 3 of wet cement mortar, 1.6m 3 of materials are required. Now we calculate the volume of materials used in cement mortar based on its proportions. Let''s say, the proportion of cement and sand in mortar is 1:X, where X is the volume of sand required.
Xem thêm / View more