Influence of flexural loading on diffusion of chlorine ion and corrosion initiation time of steel bar in concrete

A check experiment for chlorine ion corrosion of hydraulic RC beams with loading in the designed artificial climate environment was tested,chlorine ions concentration distribution in the pure flexural region of experimental beams and those concrete without loading were analyzed.Influence of flexural loading on diffusion parameters of chlorine ion and corrosion initiation time of steel bar in concrete were studied on the basis of the measured chlorine ion concentration,Fick's second law and the Monte Carlo method.Analysis results show that there are obvious inhibition against diffusion of chlorine ion in compressive region of loaded concrete beams and delay of corrosion initiation time of steel bar in concrete.