Entire Process Simulation of Corrosion due to the Ingress of Chloride Ions and CO₂ in Concrete

Abstract

A comprehensive mathematical model which can simulate the entire corrosion process of reinforcement in concrete is proposed in this paper. e combined effect of carbonation and chloride ingress is also discussed in the mass transport module. Nonuniform corrosion distribution is employed for the study of mechanical damage in concrete. e link of ABAQUS with MATLAB is adopted for the numerical implementation of the developed model. e numerical results of an illustrative example indicate that the depassivation time of reinforcement, corrosion rate and expansion displacement, and cracking pattern of concrete all can be accurately predicted.