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1·Optimization of process in concrete crushed aggregate production will bring great economical and social benefits.

混凝土人工骨料系统生产的过程优化具有明显的经济效益和社会效益。

2·A large number of experiment studies are performed for basalt crushed aggregate alkali activity by different test methods at site of Xiluodu hydropower station.

用多种检测方法对溪洛渡水电站当地的玄武岩人工骨料的碱活性进行了大量的试验研究。

3·It has to be crushed after firing and the aggregate therefore has sharp corners.

煅烧后需要进行破碎，因此骨料具有尖锐的棱角。

4·The paper mainly introduced the application technology of the pumping high strength concrete (C60) which takes crushed gravel as coarse aggregate with big fluidity.

本文着重介绍采用以破碎卵石为粗骨料配制大流动性泵送c 60混凝土技术应用。

5·Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately.

分别以铁尾矿砂和铁尾矿石代替天然砂和普通碎石配制了C30和C60两个强度等级的混凝土。

6·Cement stabilized crushed base material for gravel aggregate are tested.

对指定的片麻岩碎石进行水泥稳定碎石基层材料的试验。

7·Recycled aggregate is made from crushed concrete rubbish which is from demolished concrete building. The aggregate shall not be used until it is graded.

建筑物或构筑物解体后的废弃混凝土经破碎、分级成为混凝土集料，称为再生混凝土集料。