对西部某水坝廊道运行6年的混凝土受腐蚀状况进行调研、取样,采用XRD、SEM、EDAX和激光Raman光谱等方法进行分析.结果表明,低温、高湿、硫酸盐和碳酸盐长期共同作用下混凝土的腐蚀产物是由硅灰石膏、钙矾石、石膏和方解石组成的一种稀泥状混合物.证实了在我国西部水工环境下混凝土可能发生TSA硫酸盐侵蚀,并探讨了这种侵蚀的发生机理.
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