Table 3.
Corrosion evaluation of the carbon steel rebar in concrete column C11.
| Diameter Reduction (μm) | Corrosion Rate νcorr (μm/year) | Maximum Pit Depth (mm) | Maximum Pit-Corrosion Rate νcorr-pit (μm/year) | HEAVILY Corroded Area (%)* | MILDLY Corroded Area (%)** | |
|---|---|---|---|---|---|---|
| Dry zone (first 0.5 m) | 46 | 11 | 1.2 | 270 | 0.1 | 2.9 |
| Dry zone (next 0.5 m) | 58 | 14 | 2.4 | 550 | 0.6 | 1.6 |
| Splash zone | 146 | 34 | 1.6 | 370 | 1.5 | 4.7 |
| Tidal zone | 58 | 13 | 1.7 | 390 | 0.1 | 3.5 |
| Below surface | 75 | 17 | 1.9 | 440 | 2.9 | 1.7 |
| In-water zone | 10 | 2 | 0.2 | 50 | 0 | 0.1 |
* Area of corrosion damages deeper than 1 mm; ** Area of corrosion damages shallower or equal to 1 mm.