Investigating the Effects of Chopped Basalt Fiber on the Performance of Porous Asphalt Mixture

Table 1

Properties of the asphalt.

Properties	Results	Specification requirements
Penetration (25°C, 0.1 mm)	66.0	≥50
Softening point (°C)	80	≥75
Ductility (cm)	29	≥20
Viscosity (Pa·s)	2.302	2.2∼3.0
Elastic recovery (25°C, %)	98.7	≥90
Density (g·cm^−3)	1.023	Measured
Penetration ratio (25°C, %)	85.7	≥65