Corrosion protection of reinforcement by hydrophobic treatment of concrete
conference paper
Penetration of de-icing salts into concrete bridge decks may cause corrosion of reinforcement. Hydrophobic treatment of concrete was studied as additional protection. It was shown that hydrophobic treatment strongly reduces chloride ingress, during semi-permanent contact and in wetting/drying situations. The protection remains effective for at least five years. Carbonation of concrete is not significantly accelerated. Hydrophobic treatment does not stop corrosion if initiation by chlorides has already taken place before the treatment. Criteria for testing hydrophobic agents are available. Hydrophobic treatment is an effective, low cost preventative measure against corrosion of reinforcement. It has become standard for all new concrete bridge decks in The Netherlands.
TNO Identifier
329478
Source title
EUROCORR'99, Aachen, Germany, 30 Augustus-2 September
Pages
10
Files
To receive the publication files, please send an e-mail request to TNO Repository.