氯离子侵蚀环境下混凝土结构耐久性评估与寿命预测模型  

Durability assessment and service life prediction model for concrete structure exposed to chloride environment

作　　者：王睿[1] 王信刚[2] 

机构地区：[1]南昌大学艺术与设计学院,江西南昌330031 [2]南昌大学建筑工程学院,江西南昌330031

出　　处：《南昌大学学报（理科版）》2013年第3期281-286,共6页Journal of Nanchang University(Natural Science)

基　　金：国家自然科学基金项目(51002072);江西省教育厅科技项目(GJJ11270)

摘　　要：在海洋或除冰盐的环境中,氯离子侵蚀是造成钢筋锈蚀的主要原因。主要分析了钢筋混凝土中氯离子侵蚀引发钢筋锈蚀的机理,介绍了氯离子侵蚀环境下混凝土结构耐久性评估与寿命预测模型,其中详细阐述了基于Fick第二扩散定律的寿命预测模型,并对氯离子侵蚀环境下混凝土的使用寿命进行了实例分析。In marine or deicing agent environment,chloride penetration into concretes is the main cause of the reinforcement corrosion.The mechanism of the above problem was analyzed in this paper.Some durability assessments and service life prediction models for the concrete structure exposed to chloride environment were presented as well,especially the service life prediction models based on Fick＇s second law of diffusion.Finally,the service life of concrete structure exposed to chloride environment was analyzed according to an actual underground engineering.

关 键 词：混凝土结构 氯离子 耐久性评估 服役寿命预测 

分 类 号：TU528[建筑科学—建筑技术科学]