The burnability of four raw mixes, using of burned duns, micropowder of silica sand, mill tailings of silicate rock and sand stone, was tested.

• 用自燃煤矸石、石英砂超细粉、硅石尾矿和砂岩分别制备4种生料进行易烧性试验，结果表明是可以用工业废渣替代砂岩的。