Table 1 Nomenclature of the four initial tested beams: REF, RCFRP, RGFRP and R3DTR.
No. | Specimens name | Longitudinal strengthening at the bottom of beam | Wrapping | Description | |||||
|---|---|---|---|---|---|---|---|---|---|
Strengthening material (with 2500 mm length) | Out of bending zone–600 mm each side | End anchorage–200 mm each side | |||||||
CFRP | GFRP | 3D-Fiberglass | CFRP | GFRP | CFRP | GFRP | |||
1 | REF | − | − | − | − | − | − | − | − |
2 | RCFRP |  ×  | − | − | − | − |  ×  | − | Strengthening with one layer CFRP at the bottom and CFRP wrapping end anchorage |
3 | RGFRP | − |  ×  | − | − | − | − |  ×  | Strengthening with one layer GFRP at the bottom and GFRP wrapping end anchorage |
4 | R3DTR | − | − |  ×  | − |  ×  | − |  ×  | Impregnating the 3D-fiberglass with resin and extension of GFRP wrapping |