The industrial waste in cement raw material has been made full of use，which improve the sintering activity of raw materials and make the coal expendence drop by eight percent．It has utilized lots of industrial waste in cement cliker．From 1998 to 2000，there are 220 thousand tons of various industrial waste have been used．Having tested by cement quality testing center，compound cement 525，ordinary silicate cement 625 and silicate cement 725 have been met the chinese criterion．%在水泥生料中掺用工业废渣，经过合理配料，提高生料易烧性，使煤耗降低8％．在熟料中亦大量掺用工业废渣生产水泥，焦作坚固水泥有限公司1998年至2000年已累计掺用各种工业废渣22万t，经水泥质量检测中心检测，复合525水泥、普硅625水泥以及硅酸盐725水泥均达到国家标准．
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