Abstract
This paper reports an investigation of the effectiveness of a range of concrete coating and impregnant materials for stopping or reducing the rate of corrosion of steel in concrete. The types of material tested were (a) a waterproof polymer cement slurry, (b) a solvent free urethane, (c) a liquid plastic dressing, (d) a silane/acrylic and (e) an alkyl alkoxy silane. Their effectiveness was assessed on laboratory specimens by monitoring variations in corrosion current and potential of the steel, resistivity and chloride content of the concrete and the weight of the test specimens, before and after surface treatment of the concrete. None of the materials succeeded in stopping the corrosion. The alkyl alkoxy silane produced the largest average reduction (37%) in corrosion rate. This reduction in corrosion current appeared to be caused by a small decrease in the moisture content of the concrete. (A)
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Publisher | London, U.K., Elsevier Applied Science |
| ISBN (Print) | 1851664874, 9781851664870 |
| State | Published - 1990 |
ASJC Scopus subject areas
- General Engineering