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对比了国内有关标准对石粉含量的限制,研究了不同石粉含量对机制砂混凝土性能的影响,提出C50机制砂混凝土石粉含量不宜大于10%。
Comparing with the domestic standard, the content of stone powder is limited. The effect of different stone powder content on the performance of the sand is studied. It is suggested that the content of stone powder in the C50 sand should not exceed 10%.