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.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
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。
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
Chemical attack
Durability
Energy dispersive spectroscopy
Raman spectroscopy
Scanning electron microscopy
Temperature
X ray diffraction analysis
