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

Table 3

Technical indexes of SBS-modified asphalt.

Technical index	Measured values
Penetration (25°C, 100 g, 5 s)/0.1 mm	48.1
Ductility (25°C, 5 cm/min)/cm	＞100
Softening point (°C)	81.5
Relative density	1.043