| This paper presents an evaluation method for the chloride resistance of concrete containing supplementary cementitious materials based on electrical resistivity at early ages which is related to the diffusion coefficient derived by non-steady-state migration test. It was confirmed that the increase of electrical resistivity of concrete with material age can be fit by a regression formula where the concrete whose diffusion coefficient by non-steady-state migration test is less than 10×10-12m2/s except for the mixture using fly ash. Electrical resistivity at the age of 91 days can be estimated with a margin of error of plus or minus 20 % from three electrical resistivity data within the age of 3days and 14 days. |
