氯盐侵蚀下的钢筋均匀与非均匀锈蚀研究进展  

Research progress on the uniform and non-uniform corrosion of RC structures under chloride environments

作　　者：张菊辉[1] 凌晓政 梁磊[1] 管仲国[2] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《混凝土》2016年第10期25-29,共5页Concrete

基　　金：国家自然科学基金项目(51408359);上海高校青年教师培养资助计划项目(1015307801)

摘　　要：氯盐侵蚀引起的钢筋锈蚀是影响混凝土结构耐久性性能劣化的主要原因,研究因氯盐侵蚀导致的混凝土内钢筋的锈蚀机理、锈蚀层分布规律以及锈后结构或构件的使用寿命预测,具有一定的工程应用实际意义。综述了氯盐侵蚀引起的钢筋混凝土结构耐久性分析的研究进展。介绍了氯盐侵蚀下的钢筋混凝土结构的性能退化过程,针对基于均匀腐蚀和非均匀腐蚀下的钢筋锈蚀机理及保护层开裂受力分析,以及耐久性寿命预测研究进行了总结与归纳,并提出了一些建议,为氯盐侵蚀下的钢筋混凝土结构的进一步研究提供参考。Chloride-induced corrosion of the reinforcement is identified as the main cause of deterioration of reinforced concrete structures.Study on chloride-induced steel corrosion mechanism,corrosion layer distribution,and service life prediction of corroded structures or components, has significant value for engineering practice.It reviewed the research progress on the durability analysis of RC structures under chloride environments, and summarized the chloride induced deterioration process of RC structures, the steel corrosion mechanism based on uniform corrosion and non-uniform corrosion and mechanical analysis for concrete cover cracking, as well as the service life prediction of RC structures.And some suggestions were put forward to provide a guide for the further research.

关 键 词：氯离子 钢筋混凝土结构 均匀腐蚀 非均匀腐蚀 寿命预测 

分 类 号：TU528.01[建筑科学—建筑技术科学]