Effect of bound chloride on extraction of water soluble chloride in cement-based materials exposed to a chloride salt solution

In this study, chloride ion concentration in the water extracted solution was measured. For comparison, it was also calculated based on the electrical double layer model under extraction equilibrium. The results indicated that the release of physically bound chloride can result in 1–7 times higher water extracted chloride ion concentration than free chloride ion concentration. With increase of fineness of powder, the chloride ion concentration...