Research Article
Shear Strengthening of RC Deep Beams with Symmetrically or Asymmetrically Positioned Square Openings Using CFRP Composites and Steel Protective Frames
| Steel (mm bars) | Diameter (mm) | Yield strength (MPa) | Ultimate tensile strength (MPa) |
| 6 | 6 | 300 | 495 | 12 | 12 | 398 | 728 | 18 | 18 | 472 | 667 |
| Concrete | Water (kg/m3) | Cement (kg/m3) | Fine aggregate (kg/m3) | Coarse aggregate (kg/m3) | Standard deviation (MPa) |
| | 181 | 467 | 1175 | 759 | 4.7 |
| Resin | Tensile strength (MPa) | Elastic modulus (GPa) | Ultimate tensile strain (%) |
| Sikadur-330 | 30 | 4.5 | 0.9 |
| Fiber | Tensile strength (MPa) | Elastic modulus (GPa) | Ultimate tensile strain (%) | Thickness (mm) |
| Sika wrap-200 C | 3900 | 230 | 1.5 | 0.9 |
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