Effect of Concrete Hydrophobation against Chloride Penetration

Abstract

For concrete structures in chloride containing environments, hydrophobic surface treatments are often used as an additional protective measure for protecting the embedded steel against corrosion. In recent years, silane-based hydrophobic agents that can be used as concrete admixtures for making the whole concrete hydrophobic have also been introduced. In the present paper, the protective effectiveness of such an admixture against chloride penetration has been investigated. For comparison, some field investigations on the effectiveness of a traditional surface hydrophobation of two concrete harbor structures based on similar products are also briefly reported.

The Effect of Surface Hydrophobation Silane Treatment on Chloride Ion Penetration Resistance for Concrete Structures in Marine Environments

“…A certain amount research have been carried out in effectiveness of silane impregnation for concrete structures. Most of the study carried out in the laboratory [5][6][7][8][9][10][11], but laboratory environment are often under ideal conditions, and have obviously different with the in-site environment. So more further test should be studied by exposure test in order to examine laboratory test results.…”