The volume shrinkage of different cementitious materials was investigated. 摘要研究了不同膠凝材料體系水泥漿體的體積收縮變形特性。
Chemical analysis showed that there is a little magnesium in leavings, can be used to make cement or building gelation materials. 提取氧化鎂后鎂的含量很少的剩餘物可用來製造水泥或膠凝材料。
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