温度对碳硫硅钙石形成的影响  

EFFECTS OF TEMPERATURES ON THAUMASITE FORMATION

作　　者：高礼雄[1] 姚燕[1] 王玲[1] 

机构地区：[1]中国建筑材料科学研究院水泥科学与新型建筑材料研究所,北京100024

出　　处：《硅酸盐学报》2005年第4期525-527,共3页Journal of The Chinese Ceramic Society

基　　金："973"计划(2001CB6107)资助项目。

摘　　要：研究了环境温度对碳硫硅钙石形成的影响.将浸泡于不同温度的质量分数为10%的MgSO4溶液中的含石灰石粉水泥石试样进行X射线衍射分析、扫描电子显微分析、能谱分析和激光Raman光谱分析.结果表明:掺石灰石粉的水泥石在0～10℃的温度范围内,可形成碳硫硅钙石的硫酸盐侵蚀破坏.环境温度越低,碳硫硅钙石形成得越早.Effects of temperatures on thaumasite formation were investigated. X-ray diffraction, scanning electron microscope, energy dispersive spectrum and laser Raman spectrum analysis were used to identify thaumasite in paste sample stored in 10% (in mass) of MgSO4 solution at different temperatures. Results show that paste containing ground limestone can be destroyed at the temperature of 0-10°C by the sulphate attack of thaumasite form. The lower the temperature is, the earlier the thaumasite formation is.

关 键 词：温度 碳硫硅钙石 温度 侵蚀机理 混凝土 石灰石 能谱分析法 

分 类 号：TU528[建筑科学—建筑技术科学]