Analysis of Two-Dimensional Diffusion of Chloride Ion in RC Rectangular Members

According to two-dimensional diffusion model,the influence of various factors on two-dimensional diffusion of the chloride ion in conventional cross section is studied,including as diffusion coefficient,diffusion time,reinforcement location,boundary concentration of chloride ion and cross section dimension.It is shown: diffusion coefficient and diffusion time influence both the diffusion area and the extent of chloride ion;with increasing diffusion coefficient and diffusion time,the diffusion area and the concentration of chloride ion increase;the reinforcement location is the primary factor in determining its rusty time;the boundary concentration of chloride ion has no impact on its diffusion area,but obviously influences its diffusion extent.