钢筋混凝土锈胀开裂及对腐蚀反作用影响研究  

Summary on corrosion-induced cracking of reinforced concrete and its reverse effect on corrosion under aggressive environments

作　　者：张小刚[1] 邢锋[1] 李大望[1] 林小嵩 

机构地区：[1]深圳大学土木工程学院深圳市土木工程耐久性重点实验室,广东深圳518060 [2]深圳市南山区政府,广东深圳518060

出　　处：《混凝土》2010年第3期39-42,共4页Concrete

基　　金：国家自然科学基金项目(50908148);国家科技支撑计划子题(2006BAJ02B04);住房与城乡建设部研究开发项目(2009-K4-23);深圳市土木工程耐久性重点实验室开放基金项目(CED08-11)

摘　　要：在阅读分析大量国内外研究文献和总结对比欧盟、挪威及中国相关土木规范的基础上,深入系统的综述了腐蚀环境下钢筋混凝土锈胀开裂、裂缝宽度和裂缝对腐蚀影响三方面的研究现状,分析表明已有的大量锈胀开裂研究中未能深入考虑混凝土内部实际初始缺陷;目前尚缺乏锈胀裂缝宽度的理论分析;且未从锈胀裂缝动态发展对腐蚀进程时变影响的角度研究裂缝与腐蚀的关系。相关研究的随机分析在国际上仍处于起步阶段,而针对我国具体环境特征的研究依然十分缺乏,由此对未来研究趋势进行了展望。Based on the analysis of plentiful research references and corresponding criterions of Norway,China and EEC,the rounded summary of corrosion-induced cracking of reinforced concrete,width of crack and its reverse effect on corrosion is presented in the paper.It is found that there are some limitations in the current research,such as neglect of effects of initial defects on analytical analysis for time to cracking,lack of models for width of crack on the concrete cover surface,and also absentness of dynamic cracking process＇s time-depended reverse effect on corrosion.The random study on corrosion-induced cracking in the world is still on beginning.Up to now the corresponding study in the corrosive environment of China is few yet.As a result the research direction in future is gained.

关 键 词：锈胀开裂 裂缝宽度 裂缝对腐蚀影响 实际初始缺陷 多因素随机分析 综述 

分 类 号：TU528.01[建筑科学—建筑技术科学]