Study of the physico-chemical properties oforganic coatings for concrete degradation control

Abstract The main properties of a protective coating for concrete and reinforced concrete structures are discussed. The importance of evaluating water and water-vapour permeability is highlighted. Two new methods for testing water and water-vapour permeability of protective coatings are presented. The reliability of these tests is studied. The proposed measurements could be seen as a preliminary screening test that would easily and economically evaluate coating performances.