水泥混凝土TSA侵蚀影响因素研究  

Research on Influence Factor of the Thaumasite Form of Sulfate Attack on Cement Concrete

作　　者：严海彬[1] 

机构地区：[1]重庆交通大学,土木建筑学院,重庆400074

出　　处：《四川建材》2009年第4期2-4,共3页Sichuan Building Materials

摘　　要：碳硫硅钙石型硫酸盐侵蚀(TSA)是一种特殊的硫酸盐侵蚀形式,直接导致混凝土中C-S-H凝胶的分解,使混凝土变成一种灰白色、果肉状泥砂混合物。介绍了CO2、温度、pH值、C3A、C-S-H、水泥品种和粉煤灰等影响因素的研究情况,结合研究情况提出一些建议。The thaumasite form of sulfate attack is a special kind of sulfate attack,the form of attack lesds to decomposition of C-S-H gel. As a result,the attacked concrete becomes a white mushy mixture. The research on influence factor such as CO2、temperature、pH、C3A、C-S-H、cement type and fly ash is expatiated. And some advice is put forward with present research.

关 键 词：碳硫硅钙石 硫酸盐侵蚀 钙矾石 

分 类 号：TU528.01[建筑科学—建筑技术科学]