Study on the effect of oxygen ions on the steel corrosion in concrete

Oxygen ions diffusion directly influences steel corrosion rate, and have worse effect on concrete´s structure. The paper, starting from the steel corrosion mechanism, summarized the testing technology and the research progress of oxygen ion diffusion coefficient, analyzed the influencing factors and studied further the effect of oxygen ions diffusion on steel corrosion in concrete. The testing technology of oxygen ion diffusion coefficient is combined with the testing method of steel corrosion rate, and the relationship between oxygen ion diffusion coefficient and steel corrosion rate are established.