| Reinforcement | Concrete compressive strength (MPa) | Bond length (mm) | Number of specimens | |
| Steel | D10 (ϕ10-steel) | 40, 80, 100, 120 | 40 | 5 ea. per strength |
| GFRP | D9.5 (ϕ9.5-GFRP) | 40 | 40, 70, 100, 130 | 5 ea. per length |
| 80 | 40, 70, 100, 130 | 5 ea. per length | ||
| 100 | 40, 70, 100, 130 | 5 ea. per length | ||
| 120 | 40, 70, 100, 130 | 5 ea. per length | ||
|
|
|
| Total | 100 |