Advances in Civil Engineering / 2020 / Article / Tab 4

Research Article

Effect of Polyester Fiber on Air Voids and Low-Temperature Crack Resistance of Permeable Asphalt Mixture

Table 4

Technical indexes of polyester fiber.

ProjectPerformancePavement requirements

Length (mm)12 ± 2≥3
Diameter (μm)20 ± 2.520 ± 5
Strength (MPa)500∼680≥500
Elongation at break (%)15∼35≥15
Young’s modulus (GPa)>13.5
Proportion1.361.36 ± 0.05
Melting point (°C)259≥258

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.