Research Article
Laboratory Evaluation on Performance of Fiber-Modified Asphalt Mixtures Containing High Percentage of RAP
Table 4
Technical properties of different types of fibers.
| | Properties | Lignin fiber | Polyester fiber | Basalt fiber |
| | Diameter (μm) | 45 (average) | 20–25 | 10–13 | | Length (mm) | <5 | 5–7 | 6–7 | | Tensile strength (MPa) | >300 | >600 | 3000–4000 | | Elongation at break (%) | 15–20 | 25–40 | 3.1 | | Density (g/cm3) | 0.8 | 0.95 | 2.7 |
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