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Title |
Experimental Study on the Penetration Depth and Concentration of Corrosion Inhibitor Using Press-in Method Into the Inside of Concrete
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Keywords |
방청제 ; 확산계수 ; 침투깊이 ; 아질산 리튬 Corrosion inhibitor ; Coefficient of diffusion ; Penetration depth ; Lithium nitrate |
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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.
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