Table 1.
Parameters of the specimens.
| Group No. | Diameter of Prefabricated Steel Bars D1 (mm) | Diameter of Post-Retrofitted Connecting Steel Bars D2 (mm) |
Single-Sided Welding Length L (mm) | Protective Layer Thickness D (mm) | Strength of Reinforcement Material | Number of Specimens |
|---|---|---|---|---|---|---|
| RM1 | 16 | 12 | 6D2 | 3D2 | C85 | 3 |
| RM2 | 16 | 12 | 6D2 | 3D2 | C60 | 3 |
| RM3 | 16 | 12 | 6D2 | 3D2 | C40 | 3 |
| RM4 | 14 | 10 | 6D2 | 3D2 | C60 | 3 |
| RM5 | 18 | 14 | 6D2 | 3D2 | C60 | 3 |
| RM6 | 16 | 12 | 7D2 | 2D2 | C60 | 3 |
| RM7 | 16 | 12 | 7D2 | 2D2 | C85 | 3 |
| RM8 | 16 | 12 | 7D2 | 2D2 | C40 | 3 |
| RM9 | 16 | 12 | 7D2 | 3D2 | C60 | 3 |
| RM10 | 14 | 10 | 7D2 | 3D2 | C60 | 3 |
| RM11 | 18 | 14 | 7D2 | 3D2 | C60 | 3 |
| RM12 | 16 | 12 | 8D2 | 3D2 | C40 | 3 |
| RM13 | 16 | 12 | 8D2 | 3D2 | C60 | 3 |
| RM14 | 18 | 14 | 8D2 | 3D2 | C60 | 3 |
| RM15 | 16 | 12 | 9D2 | 3D2 | C60 | 3 |