Design and Performance of Anticracking Asphalt-Treated Base

Table 1

Technical indexes of asphalt binders.

Technical indexes	Unit	Shell 70-A	SBS modified asphalt
Penetration (25°C, 5 s, 100 g)	0.1 mm	67	46
Softening point, R&B	°C	47.5	73
Kinematic viscosity @177°C	Pa·s	—	2.0
Kinetic viscosity @60°C	Pa·s	223	—
Flash point	°C	327	230
Elastic recovery @25°C	%	—	83
Difference of softening point for 48 h	°C	—	2.0
Mass lost	%	0.10	0.12
Penetration ratio, 25°C	%	65.2	79