重庆大学学报：自然科学版2011，Vol.34Issue(10)：103-108,6.
混凝土内钢筋锈蚀速率时变的全过程模式
Time-variation full process mode of steel bar corrosion in concrete
摘要
Abstract
This paper discusses the corrosion rate variation of reinforcing steels in concrete in constant climate environment.The corrosion current density of steel bar in concrete under a constant climate environmental condition and chloride attack.The results indicate that the corrosion rate（corrosion current density） of the steel bars is time-dependent during a corrosion process,and the time-dependent process can be divided into six phases in the full lifetime.The results also show that the effects of the concrete strength and the electrical resistivity of the concrete on the variation of the corrosion rate.This study conducts the mechanism analyses about the test results based on the microstructure of the interfacial transition zone（ITZ） between the steel bars and the concrete at different corrosion levels.The growth of the corrosion layer and the corrosion cracking are the main factors influencing the corrosion process.The time-variation mode of the corrosion rate of steel bars in full process is developed.关键词
混凝土/钢筋/锈蚀速率/氯盐侵蚀Key words
concrete/steel bar/corrosion rate/chloride attack分类
建筑与水利引用本文复制引用
蒋建华,袁迎曙,彭涛..混凝土内钢筋锈蚀速率时变的全过程模式[J].重庆大学学报：自然科学版,2011,34(10):103-108,6.基金项目
国家自然科学基金资助项目 （）
