Correlation Test of Correlation Between Concrete Resistivity and Chloride Diffusion Coefficient

Resistivity measurement,resistance to chloride penetration and cube crushing strength of mineral admixture concrete are tested to analyse the variation of resistivity and chloride diffusion coefficient with age and the regression relationship between resistivity and chloride diffusion coefficient. Test results show that concrete resistivity increased with the increase of concrete age and chloride diffusion coefficient decreased with the increase of concrete age. The effect of double mixing mineral admixture is better than that of single mixing.Chloride diffusion coefficient increased with the decrease of concrete resistivity and has a good inverse regression relationship with each other.