Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Conference Publication
Electrochemical Study on Blast Furnace Slag Mixed Cement-based Anticorrosive Paint
Kae AmanoMikako MoriyamaMikitomo IkedaMakoto HibinoShigenobu Kainuma
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2018 Volume 67 Issue 8 Pages 331-335

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Abstract

In this study, the influence of chemical factors of anticorrosion paint blended with blast furnace slag mixed cement on rust prevention effect was evaluated electrochemically. The blast furnace slag mixed cement provides an alkali atmosphere in the rust preventive layer and protects steel from invasion of corrosive agents. The rust preventive effect is emphasized when used in combination with nitrite. As a condition for nitrite to exhibit rust prevention effect, strong alkali and nitrite / chloride concentration ratio of [NO2]/[Cl]≧1 are necessary. Sulfate ions required smaller amount of nitrite ions than chloride ions.

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© 2018 Japan Society of Corrosion Engineering
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