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Experimental Study on the Penetration Depth and Concentration of Corrosion Inhibitor Using Press-in Method Into the Inside of Concrete  

Cho, Hyeong-Kyu (한양대학교 건축환경공학과)
Yoo, Jo-Hyeong (한양대학교 건축환경공학과)
Lee, Han-Seung (한양대학교 건축학부)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.5, 2009 , pp. 160-168 More about this Journal
Abstract
After steel bar was corroded it removes concrete contaminated, it does steel bar corrosion protection, repairing method and corrosion inhibitor spreading method are difficult to secure corrosion protection performance. Accordingly, in this research before Research and Development to penetrate corrosion inhibitor to high pressure by steel bar position, it measures penetration depth through corrosion inhibitor high pressure penetration experiment and amount of nitrite by position and then it predicts penetration depth in accordance with water-cement ratio, pressure, pressure time and it computed water-cement ratio, pressure, pressure time to be more than 0.6 mol ratio of chloride ion and nitrite to have outstanding corrosion protection performance. As a result of experiment, water-cement ratio gives the biggest influence to penetration of corrosion inhibitor and also the more depth of specimen becomes deep, concentration of penetrated corrosion inhibitor does not equal and becomes low.
Keywords
Corrosion inhibitor; Coefficient of diffusion; Penetration depth; Lithium nitrate;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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