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研究了不同水灰比、石屑掺量、石粉含量、砂率对混凝土性能的影响。试验表明:石屑混凝土抗压强度与河砂混凝土抗压强度增长规律基本一致;在水灰比相同的条件下,不同石屑掺量、石粉含量、砂率的石屑混凝土28 d强度均能满足设计强度要求,且较河砂混凝土还有所提高;石屑掺量在40%,石粉含量在13%时,石屑混凝土28 d的强度最高;砂率在40%时,石屑混凝土的综合性能最好。
The effects of different water cement ratio, stone powder content, stone powder content and sand ratio on the properties of concrete were studied. The test results show that the compressive strength of stone chip concrete agrees well with that of river sand concrete. Under the same water-cement ratio, the strength of stone chip concrete with different stone chip content, stone powder content and sand rate at 28 d Meet the design strength requirements, and more than river sand concrete has improved; stone content of 40%, stone powder content of 13%, the highest intensity of stone dredged concrete 28 d; sand rate of 40%, the stone content of concrete The best overall performance.