MgO对贝利特-硫铝酸钡钙水泥煅烧和性能的影响  

Influence of MgO on Sintering and Property of Belite-Barium Calcium Sulphoaluminate Cement

作　　者：芦令超[1] 王辉[1] 王守德[1] 郭向阳[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《建筑材料学报》2010年第3期281-285,共5页Journal of Building Materials

基　　金：国家重点基础研究发展计划(973)项目(2009CB623101);山东省自然科学基金资助项目(Y2008F49)

摘　　要：研究了MgO对贝利特-硫铝酸钡钙水泥煅烧与性能的影响.结果表明:MgO可以促进C3S在低温下形成;SO3的存在有利于MgO在贝利特-硫铝酸钡钙水泥熟料中的固溶;贝利特-硫铝酸钡钙水泥熟料具有较高的固溶MgO的能力,MgO含量达5.14%(质量分数)的贝利特-硫铝酸钡钙水泥的安定性良好,且3,28 d抗压强度分别达到49.1,81.9 MPa,展现了良好的力学性能;贝利特-硫铝酸钡钙水泥熟料较高的固溶MgO的能力,也有利于低品质高镁石灰石的应用.The influence of MgO on sintering and property of belite-barium calcium sulphoaluminate cement was studied.The research results show that C_3S is formed easily by mixing MgO at low temperature.SO_3 is beneficial to dissolution of MgO in belite-barium calcium sulphoaluminate cement clinker.Belite-barium calcium sulphoaluminate cement clinker has a high capacity to dissolve MgO.When MgO content is 5.14%（by mass）,belite-barium calcium sulphoaluminate cement still has a good soundness,compressive strengths are 49.1 MPa and 81.9 MPa at 3 d and 28 d curing age respectively,which indicates that the cement has good mechanical properties.Low-quality high-magnesium limestone can be used as source of MgO.

关 键 词：贝利特 硫铝酸钡钙 MGO 安定性 

分 类 号：TQ172.12[化学工程—水泥工业]