Analysis of Optimal RAP Content Based on Discrete Element Method

Table 1

Basic performance indexes of virgin asphalt.

Test indicators	Unit	Requirements	Test results	Test method
Penetration degree (25°C, 100 g, 5 s)	0.1 mm	60∼80	70.2	T0604
Softening point	°C	≮46	48	T0606
Ductility	cm	≮100	>100	T0605
Density	g/cm^3	—	1.023	T0603
Dynamic viscosity	Pa·s	≮180	237.8	T0619