Effect of Clogging on the Permeability of Porous Asphalt Pavement

Table 1

Properties of modified asphalt binder.

Index	Test	Requirement	Test method
Penetration at 25°C (0.1 mm)	71.3	50–80	T0604
Softening point (°C)	90.2	≥80	T0606
Ductility at 5°C (cm)	41	≥30	T0605
Kinematical viscosity at 175°C (Pa·s)	1.245	≤1.5	T0625
Elastic recovery at 25°C (%)	92	≥85	T0620
TFOT
Mass loss (%)	0.25	≤0.6
Residual penetration ratio at 25°C (%)	91.8	≥70	T0609
Residual ductility at 5°C (cm)	30	≥20