In allusion to a series of concretion failure problems happened in the Luohe ironmine auxiliary shaft, on the basis of shaft wall water seepage source study, using seepage water from the site to soak shaft wall original Portland cement concrete and sulfate resis-ting concrete used in shaft wall rehab respectively. Through the monitoring of main anions, cations and pH values came to the following conclusions:(1) Shaft wall seepage water is mainly from fractured cavities in upper Jurassic Zhuanqiao Formation lower part; (2) Shaft wall original Portland cement concrete and sulfate resisting concrete used in shaft wall rehab are mainly corroded by sulfate, sup-plemented by magnesium sa(3) Compared to original Portland cement concrete, the sulfate resisting concrete has good resistant to sulfate corrosion, but not effectively to magnesium salt corrosion.%针对安徽马钢集团罗河铁矿副井发生的一系列混凝土结构破坏的问题,在查明井壁渗出水来源的基础上,利用现场采取的井壁渗出水分别浸泡井壁原状普通硅酸盐混凝土和修复井壁所用的抗硫酸盐混凝土,通过对浸泡液主要阴阳离子及pH值的监测,得出如下结论:(1)井壁渗出水主要来源于侏罗系上统砖桥组下段裂隙孔洞水;(2)井壁原状普通混凝土和修复所用的抗硫酸盐混凝土受到的侵蚀类型均以硫酸盐侵蚀为主,镁盐侵蚀为辅;(3)与原状普通混凝土相比,修复井壁所用的抗硫酸混凝土具有良好的抗硫酸盐侵蚀的耐性,但是并不能有效抵抗镁盐的侵蚀.
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