The aging of concrete DAMS is manifested by surface carbonization, freeze-thaw, abrasion, weathering, internal corrosion, frost-heaving, cracks, water erosion and et al.

混凝土坝老化表现在表层碳化、冻融、风化、内部溶蚀、冻胀、裂缝发育以及体积改变等。

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The changes of the temperature and water in rock are mainly reasons of weathering, especially cycles of freeze-thaw.

温度和水分的变化是引起岩石风化的主要原因之一，尤其是循环冻融更易使岩石风化。

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