Abstract: The aging of concrete dam located on the regions with cold climate is characterized by resorption, destroyed by freeze-thaw and frozen-heave, scouring and etc, but the carbonized depth is low. The freeze-thaw and frozen-heave destruction mainly result from seepage. The practice has shown that the dam body should be covered by concrete outside followed by the steps of anti-seepage and drainage in order to prevent and prolong concrete dam aging.

摘要： 寒冷地区混凝土坝老化主要表现在溶蚀、冻融和冻胀破坏、冲刷破坏等，其碳化深度不大。溶蚀、冻融和冻胀破坏等均与渗漏有关。工程实践表明，为防止或延缓混凝土坝的老化，在外包混凝土的同时必须采取防渗和排水措施。