|
Title |
Variation of Half Cell Potential Measurement in Concrete with Different Properties and Anti-Corrosive Condition
|
|
Keywords |
철근부식 ; 반전위 측정 ; 염해 분무 ; 비부식조건 Steel corrosion ; Half cell potential ; Salt spray ; Anti-corrosive condition |
|
Abstract |
Half Cell Potential (HPC) technique has been widely adopted for its quantitative evaluation of corrosion possibility. In this study, RC specimens with three different cover depths (10mm, 30mm, and 60mm) and w/c ratios (0.35, 0.55, and 0.70) are prepared and accelerated salt spray test (SST) is performed for 45 days. Steel corrosion occurs in the specimens with 0.55 of w/c and 10mm of cover depth. In the case of 0.70 of w/c and 30mm of cover depth, steel corrosion is also monitored. Considering the effect of cover depth and w/c ratio, HCP evaluation equation is proposed and the condition which can control steel corrosion is obtained. Furthermore, anti-corrosive conditions containing w/c ratio and cover depth are analyzed through Life 365 program and the conditions are compared with the results from this study.
|