Gradation optimization of continuous-graded crushed sand …
The gradation of crushed sand can be characterized by the fineness modulus, packing void fraction, and rock powder content, which should respectively be in the range of 41.8–45.0 %, 2.9–3.2 and 6–9 %.. The correlation between the yield shear stress τ 0 of the mortar and its slump flow SF was obtained, which can be used to …
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