Table 3 Properties of the steel fibres (Shanghai Realstrong Steel Fibre Co., Ltd. 2018; Bekaert China Co., Ltd. 2018; Shanghai Harex Steel Fiber Technology Co., Ltd. 2018; Zhitai Steel Fiber Co., Ltd. 2018; Zhengzhou YuJian Steel Fiber Co., Ltd. 2018).
Fibre profile | Type | Length (mm) | Equivalent diameter (mm) | Tensile strength (MPa) | Shape and surface | \(l_{p}\) (mm) | Nf |
|---|---|---|---|---|---|---|---|
| S-1 (Shanghai Realstrong Steel Fibre Co., Ltd. 2018) | 30 | 0.22 | 2850 | Straight, smooth, round | 9 | 4 |
| S-2 (Bekaert China Co., Ltd. 2018) | 30 | 0.75 | 1100 | Straight, smooth, round | 8 | 4 |
| H-1 (Shanghai Realstrong Steel Fibre Co., Ltd. 2018) | 38 | 0.22 | 2850 | Hooked, smooth, round | 9 | 4 |
| H-2 (Bekaert China Co., Ltd. 2018) | 35 | 0.54 | 1200 | Hooked, smooth, round | 9 | 2, 3, 4, 5 |
| R-H (Shanghai Harex Steel Fiber Technology Co., Ltd. 2018) | 32 | 0.91 | 600 | Hooked, roughened, flat | 9 | 3 |
| I-A (Zhitai Steel Fiber Co., Ltd. 2018) | 36 | 1.57 | 800 | Indented, round | 11 | 1 |
| C-A (Zhengzhou YuJian Steel Fiber Co., Ltd. 2018) | 40 | 1.26 | 600 | Crimped, FLAT | 10 | 1 |
