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基于混凝土氯离子扩散能力与冻融损伤的动态相关性,借助工程调查得到的混凝土结构表面剥落深度计算式,建立了同时考虑混凝土冻融损伤和表面剥落的氯离子扩散修正模型.通过某立交桥桥面板混凝土和胶州湾海底隧道洞口段衬砌混凝土实测数据,对提出的修正模型进行了工程验证和应用.研究表明:在盐冻环境中应用该修正模型的预测结果与实测数据吻合度高,且模型简单,便于工程应用.
Based on the dynamic correlation between concrete chloride ion diffusion ability and freeze-thaw damage, a modified model of chloride ion diffusion considering both freeze-thaw damage and surface spalling was established by engineering calculation formula of surface spalling depth of concrete structure. Panel concrete and Jiaozhou Bay Cross-Harbor Tunnel Liner Section, the proposed revised model was validated and applied to engineering.The results show that the predicted results of applying this modified model in salt frost environment are in good agreement with the measured data, and the model Simple, easy to use engineering.