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Test results regarding the corrosion protection of the reinforcement at the application of acrylate gels in concrete cracks

✍ Scribed by M. Raupach; J. Harnisch; L. Wolff

Publisher: John Wiley and Sons
Year: 2009
Tongue: German
Weight: 979 KB
Volume: 60
Category: Article
ISSN: 0947-5117
DOI: 10.1002/maco.200805011

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✦ Synopsis

Abstract

This paper deals with the possible corrosion risk for steel rebars in cracked reinforced concrete structures by using acrylate gels for grouting. In the course of this project, 19 customary acrylate gels were analysed. The results of the conducted test procedures revealed that none of the tested acrylate gels can provide an active corrosion protection for the steel rebars due to their low electrolytic resistivity and low pH values. Just when applied in very thin layers (e.g., fine cracks) it seems to be possible that alkaline components of the surrounding concrete can penetrate through the gel to form a passive layer on the embedded steel rebar.

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