Non-uniform rust expansion for chloride-induced pitting corrosion in RC structures

Steel corrosion normally takes pitting pattern in chloride contaminated RC structures. This paper examines the localized corrosion rust accumulation process through electrochemical analysis. The coupled micro- and macro-cell corrosion process involved in typical chloride-induced corrosion is numerically simulated by employing the Finite Element Method (FEM). The modeling results show that macrocell corrosion rate may decrease drastically while...