Common concrete mixture ratio design involves broad theory and rich practice knowledge.

普通混凝土配合比设计,其涉及的理论和实践知识甚广.

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Considering engineering safety, the paper selects a C 30 mixture ratio to be applied a engineering.

从工程安全角度的考虑, 优选了一组C30配比作为工程应用.

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The characteristics and mixture ratio design of the polypropylene fiber shotcrete are introduced.

摘要介绍了聚丙烯纤维喷射混凝土的特点及其配合比设计.

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Through the experiments, the mixture ratio of cemented crushed stone backfilling materials was optimized.

通过试验, 优化了碎石胶结充填料配比.

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