Influence of PPA on the Short-Term Antiaging Performance of Asphalt

Table 1

Basic properties of 90# Donghai asphalt.

Parameters measured		Result	Normal value
Penetration at 25°C (0.1 mm)		80.2	80∼100
Softening point (°C)		46.3	≥45
Ductility at 10°C (cm)		113.6	≥100
Ductility at 15°C (cm)		>100	≥100
TFOT (163°C, 5 h)	Mass loss (%)	0.15	≤0.8
	Penetration ratio (%)	58	≥57
	Ductility at 15°C (cm)	36	≥20