掺烧城市垃圾残渣硅酸盐水泥性能及重金属浸出行为研究  

Study on leaching behavior of heavy metals and properties of combustion residue of municipal solid waste Portland cement

作　　者：杨力远[1] 雷蕾[1] 马军涛[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001

出　　处：《混凝土》2012年第3期12-14,共3页Concrete

基　　金：国家"十一五"科技支撑计划重大项目(2006DAF02A24)

摘　　要：通过生料易烧性试验、熟料矿物岩相分析、XRD、SEM、水泥胶砂强度试验、重金属离子浸出试验等,对利用城市垃圾分拣残渣配料煅烧硅酸盐水泥熟料及其水化反应的特征进行了研究。结果表明:城市垃圾分拣残渣配料制成的水泥熟料,其矿物结构与常规的硅酸盐水泥熟料相同;其烧成温度有降低的趋势;其水化产物和凝结硬化过程与常规硅酸盐水泥相同;熟料煅烧和凝结硬化过程对城市垃圾中重金属离子的固化有一定的辅助作用。Through experiments on burnability of raw materials,petrographic analysis of cement clinker,XRD, SEM, strength test of cement mortar, soluble test of heavy metal ion and so on,portland cement clinker calcined by using residue which is sorted in municipal refuse and its characteristic of hydration reaction have been researched.The results show that： the mineral structure of cement clinker made from residue which is sorted in municipal refuse is identical with that of conventional Portland cement clinker;and its firing temperature tends to decrease;its hydrated product and process of setting and hardening is identical with that of conventional portland cement clinker;calcination process of clinker and pro- cess of setting and hardening have played some additional role in solidify of heavy metal ion in municipal refuse.

关 键 词：城市垃圾 熟料 水化 重金属 固化 

分 类 号：TU528.01[建筑科学—建筑技术科学]