Research Article
Influence of Fiber Type on Low-Temperature Fracture Performance of Presawed Asphalt Mixture Beams
Table 3
Technical indicators of fibers.
| | Fiber type | Diameter (μm) | Length (mm) | Tensile strength (MPa) | Young’s modulus (GPa) | Tensile elongation (%) | Melting point (°C) | Density (g/cm3) |
| | Polyester fiber | 20 4 | 12 | >550 | >13.5 | 15–30 | 259 | 1.36–1.4 | | Basalt fiber | 15 2 | 12 | 3900 | >40 | 3.2 | 1050 | 2.60 | | Lignin fiber | 45 | 3 | <300 | 3.5 | 15–20 | 170 | 0.91 |
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