摘要
水泥的主要水化产物水化硅酸钙凝胶(C-S-H)组成与结构的研究,对于理解、调节与控制水泥基复合材料的力学性能与化学稳定性具有重要意义。讨论了拉曼光谱在C-S-H结构研究中的应用;通过拉曼光谱技术对溶液反应法合成的水化硅酸钙(钙硅比为1.5)的聚合状态进行了探索性研究,结果与红外光谱的进行了对比。结果表明,该种水化硅酸钙的硅氧四面体结构主要以Q1、Q2两种形式存在。
It is important to investigate composition and nanostructure of calcium silicate hydrate formed by cement hydration for understanding,adjusting and controlling mechanical properties and chemical stability of cement-based material.Application of Raman technique in the study on structure of calcium silicate hydrate is introduced.A fundamental Raman study on polymerization state of calcium silicate hydrate synthesized by solution reaction of sodium silicate and calcium nitrate with C/S 1.5 is carried out,and Raman result is compared with IR result.Results show that main Si sites in silica tetrahedron structure of this kind of C-S-H are Q1 and Q2.
出处
《建材世界》
2011年第2期6-8,12,共4页
The World of Building Materials
关键词
水化硅酸钙
溶液反应法
拉曼光谱
聚合状态
calcium silicate hydrate
solution reaction
raman technique
polymerization state
