所用的轻质骨料为轻质陶粒、漂珠、蛭石、膨胀珍 珠岩或其它轻质耐火原料。
The used lightweight aggregate is lightweight ceramsite, floating bead, vermiculite, expansion perlite or other lightweight fireproof raw material.
油页岩渣可用作建筑材料，如高档水泥填料、轻质混凝土骨料陶粒及轻质砖材料等；
The oil shale can be used as construction materials, such as high grade cement filler, light concrete bone material-pottery grain and light brick materials, etc.
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