Abstract
The current specifications for the use of machine-made sand do not consider the influence of lithology, grain type, and sand ratio on concrete performance. The actual production of machine-made sand concrete performance is not satisfactory. In this paper, the effect of each grain size on the fineness modulus of machine-made sand is studied to guide the production of machine-made sand. The bleeding of granite machine-made sand concrete can be improved by reducing the grading range of machine-made sand required by the specification. At the same time, a sand rate correction method considering fineness modulus, stone powder content, and water-cement ratio is proposed, which is a new technology for the use of granite machine-made sand concrete and provides a reference for the future use of granite machine-made sand concrete preparation projects.
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