Prediction Model for Connected Voids Ratio of the Porous Asphalt Mixture

Table 3

Technical index of modified asphalt.

Experiment item	Common asphalt	Asphalt rubber	High-viscosity asphalt
Softening point (°C)	48	66	81.8
15°C ductility(cm)	>100	12.4	>100
Penetration (0.1 mm)	66	42	43.1
Viscosity (135°C)	0.41	3.67	4.72