Research Article
A Comparative Experimental Study on the Flexural Behavior of High-Strength Fiber-Reinforced Concrete and High-Strength Concrete Beams
Table 3
Experimental results of the beam specimens.
| | Beam specimens | Initial cracking state | Yielding state | Peak state | Crack stiffness Kcr (kN/mm) | Ductility index | Flexural toughness (kN·mm) | Normalized flexural toughness (kN·mm) | | Pcr (kN) | Mcr (kN) | Δcr (mm) | Py (kN) | My (kN) | Δy (mm) | Pp (kN) | Mp (kN) | Δp (mm) |
| | H100-R1 | 16.1 | 9.6 | 0.9 | 78.0 | 46.8 | 27.3 | 95.3 | 57.2 | 92.1 | 2.35 | 3.38 | 6,980 | 6,980 | | H100-R2 | 16.4 | 9.8 | 1.0 | 129.0 | 30.5 | 30.5 | 139.6 | 83.8 | 45.0 | 3.82 | 1.47 | 5,224 | 5,224 | | H100-R3 | 12.7 | 7.6 | 0.9 | 162.0 | 32.6 | 32.6 | 174.6 | 104.8 | 47.8 | 4.71 | 1.47 | 5,641 | 5,641 | | H120-R1 | 23.3 | 14.0 | 1.2 | 86.4 | 51.8 | 22.2 | 99.4 | 59.6 | 96.1 | 3.00 | 4.34 | 8,065 | 8,229 | | H120-R2 | 17.4 | 10.4 | 0.9 | 120.4 | 72.2 | 26.0 | 131.6 | 79.0 | 60.9 | 4.11 | 2.35 | 6,482 | 6,614 | | H120-R3 | 17.4 | 10.4 | 1.0 | 157.2 | 94.3 | 28.5 | 170.2 | 102.1 | 64.5 | 5.09 | 2.26 | 8,230 | 8,397 | | HF120-R1 | 46.4 | 27.8 | 2.9 | 145.1 | 87.1 | 22.3 | 149.3 | 89.6 | 30.5 | 5.09 | 1.37 | 5,456 | 4,950 | | HF120-R2 | 62.2 | 37.3 | 5.1 | 172.4 | 103.4 | 22.8 | 185.0 | 111.0 | 32.5 | 6.23 | 1.43 | 8,087 | 7,337 | | HF120-R3 | 58.8 | 35.3 | 4.2 | 222.0 | 133.2 | 25.7 | 236.8 | 142.1 | 41.0 | 7.59 | 1.60 | 13,971 | 12,676 |
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