Antiaging Property and Mechanism of Phase-Change Asphalt with PEG as an Additive

Table 2

Effects of different PEG on physical properties of asphalt.

Index		PEG content (%)
		0	5	10	15
Penetration (100 g, 5 s) (0.1 mm)	15°C	25	27	33	40
	25°C	65	79	98	115
	30°C	108	110	128	134
Softening point (°C)		53.0	48.5	49.0	53.0
Ductility (5 cm/min, 15°C) (cm)		150	135	119	107
Viscosity (135°C, mPa·s)		364	403	432	490