Table 1 Corrosion levels and cracks on the concrete surface
Specimen | Average area loss η1 (%) | Rib area loss η2 (%) | Crack widths before pullout tests (mm) | Damage rating (Table 2) | |||
|---|---|---|---|---|---|---|---|
Front face | Left side face | Right side face | Total width | ||||
C#1 | 1.5 | 10.0 | 0.31 ± 0.17 | 0.32 ± 0.17 | – | 0.63 | moderate |
C#2 | 1.8 | 11.2 | 0.34 ± 0.12 | – | – | 0.34 | slight |
C#3 | 2.2 | 7.10 | 0.50 ± 0.11 | 0.25 ± 0.09 | – | 0.75 | moderate |
C#4 | 4.1 | 11.8 | 0.42 ± 0.14 | – | – | 0.42 | moderate |
C#5 | 7.1 | 34.0 | 0.39 ± 0.10 | – | – | 0.39 | slight |
C#6 | 7.7 | 40.0 | 0.30 ± 0.14 | 0.48 ± 0.24 | 1.39 ± 0.47 | 2.17 | severe |
C#7 | 7.8 | 30.4 | – | 0.44 ± 0.16 | 1.20 ± 0.05 | 1.64 | severe |
C#8 | 9.1 | 37.5 | 0.64 ± 0.12 | 0.76 ± 0.22 | – | 1.40 | moderate |
C#9 | 10.3 | 48.8 | 0.21 ± 0.11 | 0.30 ± 0.16 | – | 0.51 | moderate |
C#10 | 12.2 | 58.4 | 0.26 ± 0.09 | 0.27 ± 0.13 | – | 0.53 | moderate |
C#11 | 15.6 | 70.1 | 0.24 ± 0.15 | 0.87 ± 0.43 | 1.56 ± 0.51 | 2.67 | severe |
C#12 | 17.8 | 71.2 | 0.84 ± 0.30 | 1.14 ± 0.55 | – | 1.98 | severe |
C#13 | 18.1 | 72.1 | 1.07 ± 0.44 | 1.00 ± 0.33 | 1.28 ± 0.92 | 3.35 | severe |
C#14 | 29.5 | 90.4 | 0.26 ± 0.18 | 1.71 ± 0.84 | 1.51 ± 0.66 | 3.48 | severe |
C#15 | 35.0 | 93.5 | 0.98 ± 0.30 | 0.78 ± 0.19 | 0.79 ± 0.32 | 2.55 | severe |