EFFECT AND SOLID SOLUTION MECHANISM OF P2O5 DURING C3S FORMATION

摘要：

C3S was one of the most important mineral phases in silicate cement clinker, Foreign ions could solidify into C3S crystal lattice. For the research on solid solution mechanism which was talked about C3S doped by ion, the research achievement could be taken as guidable for cement clinker industry. The effect and solid solution mechanism of P2O5 during C3S formation was studied by means of chemical analysis, XRD and phase diagram analysis. The results show that when P2O5 addition was less than 2.0％, the f-CaO content increased with the increasing P2O5, the formation of C3S was accelerated by P2O5; when P2O5 addition exceeded 2.0％, the f-CaO content decreased with the increasing P2O5, P2O5 cause C3S to decompose into dicalcium silicate and calcium oxide. Besides, by least square method and defined f-CaO, the molecular formula that P2O5 solidifies in C3S could be deduced: (Ca3_o.223ixPo.223ix) (Sii-o.7769x P o.7769x )Os (x=0.0273).

关键词： C3S crystal form phase diagram solid solution

作者: K. Ke B.G Ma X.L. Wang X.G Li

作者单位: Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education Wuhan University of Technology, Wuhan Hubei 430070

会议类型: 国际会议

会议名称: The 7th International Symposium on Cement & Concrete(ISCC2010)、The 11th International Conference on Advance in Concrete Technology and Sustainable Development(第七届水泥与混凝土国际会议暨第11届混凝土技术可持续发展国际会议)

会议地点: 济南

会议语种:英文

页码: 114-119

在线出版日期: 2010-05-09（万方平台首次上网日期，不代表论文的发表时间）