Effect of Surface Defects of Reinforced Co ncrete Cover on Corrosion Expansion Cracking
The effect of initial defects on the surface of concrete cover with different sizes on the corrosion cracking time of steel bars was studied by electrochemical acceleration method.The results show that the initial defects on the surface of the concrete cover will significantly shorten the cracking time of the cover and have a strong induction effect on the cracking direction.The degree of cracking time reduction is positively correlated with the length of surface defects.At the engineering site,attention should be paid to the surface quality of the concrete structure.Then,the paper also evaluated the effect of the thickness of the sheath and the diameter of the steel bar on the cracking time of the cover.
Surface defect Corrosion expansion Cracking time
Ce JIANG Xiao-gang ZHANG Hong-fang SUN Gui-qin ZUO Xiao-ye ZHAO Kun CAO Guo-jun MA
Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering,College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,China
国际会议
长沙
英文
66-70
2019-08-30（万方平台首次上网日期，不代表论文的发表时间）