Table 2.
Shear test results for Ø4, Ø8, and Ø10. Tested bars: BFRP (basalt fiber-reinforced polymer), HFRP (hybrid fiber-reinforced polymer), and nHFRP (hybrid bars modified nano silica).
| Type of Bar | Pre-Heating Temperature (°C) | Equivalent Diameter (mm) |
Average Shear Force (kN) |
Average Shear Stress (MPa) |
CV Average Shear Stress (%) |
|---|---|---|---|---|---|
| BFRP Ø4 | 20 | 4.64 | 5.798 | 171.52 | 4.66 |
| 80 | 5.733 | 169.61 | 2.21 | ||
| 200 | 6.208 | 183.65 | 4.93 | ||
| HFRP Ø4 | 20 | 6.901 | 204.41 | 3.21 | |
| 80 | 4.64 | 6.555 | 194.18 | 6.13 | |
| 200 | 7.157 | 211.99 | 8.15 | ||
| nHFRP Ø4 | 20 | 7.340 | 193.25 | 7.14 | |
| 80 | 4.92 | 7.360 | 193.79 | 7.79 | |
| 200 | 7.740 | 203.80 | 4.65 | ||
| BFRP Ø8 | 20 | 8.32 | 22.348 | 205.37 | 6.30 |
| 80 | 21.856 | 200.84 | 6.56 | ||
| 200 | 19.574 | 179.87 | 10.08 | ||
| HFRP Ø8 | 20 | 27.726 | 229.44 | 1.98 | |
| 80 | 8.77 | 24.183 | 200.12 | 9.32 | |
| 200 | 25.208 | 208.60 | 6.50 | ||
| nHFRP Ø8 | 20 | 20.214 | 173.48 | 4.21 | |
| 80 | 8.61 | 21.192 | 181.88 | 4.71 | |
| 200 | 21.612 | 185.48 | 4.88 | ||
| BFRP Ø10 | 20 | 9.97 | 27.398 | 175.33 | 4.12 |
| 80 | 26.291 | 168.25 | 4.27 | ||
| 200 | 25.557 | 163.55 | 6.50 | ||
| HFRP Ø10 | 20 | 38.245 | 198.31 | 3.48 | |
| 80 | 11.08 | 26.887 | 139.41 | 2.25 | |
| 200 | 24.209 | 125.53 | 5.91 | ||
| nHFRP Ø10 | 20 | 35.768 | 191.64 | 3.21 | |
| 80 | 10.89 | 28.334 | 151.81 | 3.14 | |
| 200 | 29.369 | 157.35 | 3.29 |