含碳硫硅酸钙腐蚀产物的微观结构与生成机理  

MICROSCOPIC STRUCTURE AND GROWTH MECHANISM OF THE CORROSION PRODUCTS INCLUDING THAUMASITE

作　　者：马保国[1] 罗忠涛[1] 李相国[1] 高小建[2] 张美香[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070 [2]哈尔滨工业大学土木工程学院,哈尔滨150006

出　　处：《硅酸盐学报》2006年第12期1503-1507,共5页Journal of The Chinese Ceramic Society

基　　金：国家"863"(2005AA332010)资助项目

摘　　要：通过X射线衍射分析、扫描电镜、X射线光电子能谱分析、Fourier变换红外光谱分析及激光Raman光谱分析等现代测试技术,分析英国某桥墩基部腐蚀产物的微观结构,证实所取样品中含有大量的碳硫硅酸钙晶体,已发生了明显的碳硫硅酸钙型硫酸盐侵蚀。探讨了碳硫硅酸钙的腐蚀机理。X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy analysis, Fourier transform infrared spectrometry, and laser Raman spectrometry testing techniques were used to analysis the microscopic structure of corrosion from one pier base in England. There are massive thaumasite crystal in the sample. It was proven that the thaumasite formation due to sulfate attack had occurred obviously. The mechanism of thaumasite formation was also investigated.

关 键 词：混凝土 硫酸盐侵蚀 碳硫硅酸钙 微观分析 机理 

分 类 号：TU528.01[建筑科学—建筑技术科学]