ABSTRACT
Abstract Three different accelerated tests for chloride diffusivity are reviewed and the theoretical relationships between the diffusion coefficients from different tests are examined and discussed. The potential application of the diffusion coefficient for predicting chloride penetration into concrete structures is also discussed. An electrically accelerated test based on the non-steady state process is recommended because of its theoretical basis and simplicity. A numerical model of chloride penetration accompanied with chloride binding was used and some predicted results under different exposure conditions are presented by comparison with the measured data from the field and laboratory studies. Keywords: Cement, chlorides, chloride penetration, concrete, diffusion, prediction, test methods, modeling.
