Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
Conference Publication
Effect of Rust Remaining Surface Characteristics on Corrosion Prevention by Paint
Hideki MatsudaRemi OtaIkuro TsuchiokaMakoto Sano
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2018 Volume 67 Issue 1 Pages 27-32

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Abstract

In order to establish a new repainting method for aged steel structures, we examined the paint corrosion prevention property when painted on the steel surface where rust remains due to insufficient surface preparation of the rusted steel. Relationship between the surface condition and corrosion protection property when coated with paints was studied by various surface preparation methods on the rusted steel prepared through outdoor exposure.

The corrosion protection mechanism could not be explained by residual salt content or remained rust thickness. It was revealed that the electrochemical characteristics derived from the cyclic voltammetry method and the unevenness information analyzed from the laser displacement meter greatly influence the paint corrosion prevention on the remaining rust surface.

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© 2018 Japan Society of Corrosion Engineering
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