Research on Calcium Strontium Sulphoaluminate Cement with Strontium Slag as Raw Material

摘要：

In the paper, the application of strontium-bearing slag for manufacturing sulphoaluminate cement has been studied. The best mineral composition of calcium strontium sulphoaluminate (CSS) cement clinker, sintering temperature and time were investigated by orthogonal test. The results show that the early and later stage compressive strength of sulphoaluminate cement can be improved by adding appropriate amount of strontium slag replaced for partial limestone and gypsum. Compressive strength of 3 d and 28 d are 67.75 MPa and 89.63 MPa respectively, and the firing condition and grinding conditions of the cement also was improved. SEM pictures show the grain boundary of clinker mineral is clear and the size of crystal is about 1 um. Through the analysis of XRD and DTA-TG, the hydrated product of calcium strontium sulphoaluminate cement is Sr-bearing AFt, CAHio, AH3 (gel), C-S-H and Ca(OH)2.

关键词： strontium slag calcium strontium sulphoaluminate strength hydrated product

作者: W.J. Tan J. Chang H.Z. Wu Z.M. Ye X.Cheng

作者单位: Department of Materials Science and Engineering, University of Jinan, Jinan 2500222, China Ministry Department of Materials Science and Engineering, University of Jinan, Jinan 2500222, China Ministry Department of Materials Science and Engineering, University of Jinan, Jinan 250022, China Ministry o

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: 160-165

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）