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用ＤＴＡ和ＴＧ法研究在不同碳化率下钙矾石的热稳定性，发现钙矾石碳化率从零增加到８０％，其加热脱水峰温约降２０℃，这是由于碳化破坏了钙矾石结构，使本来难脱去的结构水变成自由水所致，由此可知被深度碳化的水泥构件抗温能力低。
The thermal stability of ettringite at different carbonization rates was studied by DTA and TG methods. It was found that the carbonization rate of ettringite increased from zero to 80%, and the peak temperature of dehydration by heating decreased about 20 ℃, which was attributed to the destruction of ettringite Stone structure, so that the structure of water has been difficult to get off into free water, which shows that the depth of carbonization of cement components low temperature resistance.