Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
-A Rapid Communication Note of the 61th Japan Conference on Materials Environments-
Corrosion Mechanism of Steel Bars in Concrete Poles
Norihiro FujimotoYasuhiro HigashiTakashi Sawada
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2015 Volume 64 Issue 6 Pages 231-234

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Abstract

To clarify the corrosion mechanism of steel bars in concrete poles (CPs), the corrosion state of a steel bar that had been taken out of a discarded CP and a new steel bar that had been immersed in a quasi-concrete-environment (weak alkaline) solution were compared. The formation of rust was observed beneath the scale that covered the surface of the steel bar removed from the CP. A similar rust compound was observed in the bar immersed in the weak alkaline solution, which shows that the corrosion of a steel bar in a CP environment can be experimentally reproduced.

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© 2015 Japan Society of Corrosion Engineering
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