| Rebar type | Compr. strength of concrete (MPa) | 4ds | 7ds | 10ds | 13ds | ||||
| Max. load (kN) | Bond strength (MPa) | Max. load (kN) | Bond strength (MPa) | Max. load (kN) | Bond strength (MPa) | Max. load (kN) | Bond strength (MPa) | ||
| Steel | 40 80 100 120 | 43.068 44.552 42.392 43.698 | 35.89 37.13 35.33 36.42 |
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| GFRP | 40 80 100 120 | 20.206 25.302 23.978 23.486 | 16.93 21.21 20.10 19.68 | 31.852 44.210 42.876 41.074 | 15.25 21.17 20.53 19.67 | 43.118 59.204 54.116 57.450 | 14.45 19.85 18.14 19.26 | 55.596 75.890 69.430 71.104 | 14.34 19.57 17.90 18.34 |