Abstract
In the calculation of concrete mix proportion, sand–aggregate ratio and water dosage are determined by referring table, which is fairly arbitrary. In this paper, according to the concept of coordination number and Bingham model rheology, we deduced the formulas of sand–aggregate ratio and water dosage, respectively, and then utilized the experimental data to test and verify the formulas. Thereby, the calculation of sand–aggregate ratio and water dosage is more exact.
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