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Influences of various factors on half-cell potential testing |
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| รหัสดีโอไอ | |
| Creator | 1. Sirisil Kalayanakoul 2. Sirapong Suwanpunjasil 3. Tada Yocapajorn 4. Wanchai Yodsudjai |
| Title | Influences of various factors on half-cell potential testing |
| Publisher | Faculty of Engineering, Khon Kaen Univeristy |
| Publication Year | 2555 |
| Journal Title | KKU Engineering Journal |
| Journal Vol. | 39 |
| Journal No. | 4 |
| Page no. | 401-406 |
| Keyword | Reinforced Concrete, half-cell potential,steel corrosion,concrete structure inspection |
| ISSN | 0125-8573 |
| Abstract | Half-cell potential testing has been recommended as a non-destructive method for assessing the probability of corrosion of reinforcing steel in concrete structure before the damage is evident on the surface of concrete structure. The objective of this research was to quantify the effects of chloride concentration, concrete cover thickness, concrete compressive strength and presence of epoxy coating on half-cell potential measurements of concrete structure. The results of the testing indicated that all of the factors have important impacts on half-cell potentials over the ranges of levels investigated in this research. Half-cell potential measurements became more negative with increasing chloride concentrations and; on the other hand, it became less negative with increasing concrete cover thickness and increasing compressive strength. As expected, the uncoated rebar had more negative half-cell potential than epoxy-coated rebar. |
