In order to promote the in-depth application of magnesium oxychloride cement reinforced concrete(MOCRC)in the western region,an accelerated indoor destruction test that simulates the saline soil environment and climatic environment in the western region was designed to study the protective effect of the coating on the steel bars under the multi-factor damage test environment.The electrochemical workstation was used to test the polarization curve and corrosion current density of the test piece.The corrosion current density was selected as the degradation index of the Wiener stochastic degradation process,and the reliability function prediction model of the stochastic degradation process was established.The results show that the protective effect of the coating on the steel bar in the multi-factor test environment is weaker than the protection effect on the steel bar in the pure immersion test environment.Through the reliability function life prediction model,it can be determined that the time for MOCRC to reach moderate corrosion damage under the indoor multi-factor accelerated damage test environment of different concentrations of 2%,4%,6%,and 8%sodium chloride salt solution is 4 000,3 500,1 400,400d respectively.
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