介绍了用人工砂(包括石屑)试配高强混凝土以及人工砂在预应力高强混凝土管桩生产中应用的情况。

Preparation of high strength concrete with stone sand (stone screenings) and the application of the stone sand in the PHC pipe pile production are presented.

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在试验研究的基础上，探讨了在限定级配下，由天然砂与石屑混合组成的细集料的棱角性(FAA)对沥青混合料体积性质、水敏感性的影响。

By experimental study, how the moisture susceptibility and volume property was influenced by the FAA value of mixed fine aggregate which includes natural sand and stone chips was discussed.

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本文讨论了砂屑岩综合结构系数与沉积环境分析的实例。

The comprehensive textural coefficient of arenaceous rocks can be used for analysis of sedimentary environments.

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