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试验保证混凝土配合比不变的情况下,通过调整普通机制砂和精品机制砂的比例以达到改变配制混凝土用机制砂的整体质量,采用单因素变量法研究机制砂品质对混凝土工作性能和力学性能的影响。试验结果表明:机制砂的品质不仅影响新拌混凝土的工作性能,而且对硬化混凝土的力学性能也存在一定的影响。越优质的机制砂配制的混凝土工作性能和力学性能越好。
Test to ensure the same proportion of concrete cases, by adjusting the ratio of general mechanism sand and fine mechanism of sand to achieve the overall quality of the system of concrete sand preparation, the use of single factor method to study the quality of sand on the concrete performance and mechanical properties Impact. The test results show that the quality of the manufactured sand not only affects the workability of the fresh concrete, but also affects the mechanical properties of the hardened concrete. The better the performance of the concrete prepared by the mechanism of sand and the better mechanical properties.