论文部分内容阅读
设计了两种人工合成碳硫硅钙石的实验方法以研究水泥基材料中碳硫硅钙石的侵蚀机理。用X射线衍射、Raman光谱对水泥基材料不同龄期的反应产物进行定性分析,并采用Rietveld方法进行定量表征。结果表明:碳硫硅钙石在不能生成钙矾石的环境下仍可形成,说明其可以直接反应生成;在有钙矾石生成的环境下,碳硫硅钙石也可生成,表明碳硫硅钙石形成机理存在Woodfordite转变机理。钙钒石的存在提高了碳硫硅钙石的产率。相比较而言,Woodfordite转变机理比直接生成机理更容易发生,且两种机理可以同时并存。
Two synthetic methods for the synthesis of carbosulfite were designed to study the erosion mechanism of the carbosulfite in cement-based materials. The reaction products of cement-based materials at different instars were qualitatively analyzed by X-ray diffraction and Raman spectroscopy, and characterized by Rietveld method. The results show that the carbosulfite can still be formed under the environment that ettringite can not be formed, indicating that it can be directly reacted to produce. In the environment with ettringite formation, the carbosulfite can also be formed, indicating that the carbon and sulfur There is Woodfordite transformation mechanism in the formation mechanism of calcium silicate. The presence of ettringite increases the yield of glauberite. In contrast, the Woodfordite transformation mechanism is more likely to occur than the direct generation mechanism, and both mechanisms can co-exist simultaneously.