The physical and mechanical property of steel slag is very similar to crude gravel, It is a kind of potential building material with good properties for road use.
2
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。
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.
3
在我国很多地区出现天然砂资源短缺的同时，采石场加工碎石产生大量的石屑，占用场地且污染环境。
While a shortage of sand resources in many states of our country, much crushed stone dust was produced in the course of crushing stones in quarry.
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