Abstract
In recent years, various surface protection methods have been developed and applied toward restoring the performance of frost-damaged concrete open channels in cold regions. Such methods work by repelling moisture and thus, inhibiting freeze-thaw in concrete. For these methods to demonstrate long-term performance, they must demonstrate sufficient adhesion to concrete. In this study, new kinds of freezing and thawing tests were used to evaluate various surface protection methods for concrete open channels in terms of their durability of adhesion. The evaluation proved that the adhesive deterioration is caused by freeze-thaw action when inorganic and organic surface protection coatings are conducted and it was also proved that the adhesive deterioration differs according to the characteristic of protection material.
