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Test specimen details.
| Specimens | Strengthening Methods | Strengthening Material | Strengthening Amount (EA) |
|---|---|---|---|
| R4C | - | - | - |
| R2C | - | - | - |
| R4NSP | Near Surface Mounted | CFRP | 1 |
| R2NSP | Near Surface Mounted | CFRP | 1 |
| R2NSN(H) | Near Surface Mounted | CFRP | 1 |
| R4NSN(S) | Near Surface Mounted | CFRP | 1 |
| R4EPP | External Prestressing | Strand | 2 |
| R2EPP | External Prestressing | Strand | 2 |
| R4EBN | External Bonding | CFRP Sheet | 2 |
| R2EBN | External Bonding | CFRP Sheet | 2 |
| R2SEN | Section Enlargement | GFRP bar | 6 |
