建筑垃圾黏土砖的水热固化再利用  

Utilization of Waste Clay Brick by Hydrothermal Solidification

作　　者：孙光耀[1] 景镇子[1] 赵卫国[1] 徐鹏亮[1] 王至炯[1] 

机构地区：[1]同济大学材料科学与工程学院,上海201804

出　　处：《非金属矿》2012年第4期4-7,42,共5页Non-Metallic Mines

基　　金：国家自然科学基金项目(50872096;51072138)

摘　　要：利用水热固化技术通过添加消石灰,可将建筑垃圾黏土砖在低温(～200℃)下固化成抗折强度约为23 MPa的建筑材料。实验结果表明,样品强度增加的主要原因是托勃莫来石晶相的生成,而托勃莫来石的量受蒸馏水添加量、Ca(OH)2添加量、固化时间、固化温度等因素的影响。Hydrothermal solidification of waste clay brick has been carried out under low curing temperature. Experimental results showed that with addition of slaked lime the flexural strength of the solidified sample reached about 23 MPa, and the strength development of specimens was found to be mainly due to the formation of tobermorite. The distilled water content, Ca（OH）2 content, curing time and curing temperature seemed to influence the tobermorite formation.

关 键 词：水热固化 黏土砖 抗折强度 托勃莫来石 建筑垃圾 

分 类 号：TU522.11[建筑科学—建筑技术科学] X799.1[环境科学与工程—环境工程]