Composition and Evaluation on Road Performance of SBS/PTW High-Viscosity-Modified Asphalt and Its Mixtures for Ultrathin Overlays

Table 11

High-temperature classification results of modified asphalt.

Asphalt type	Rutting factors of original asphalt at different temperatures (kPa)						Asphalt rut factor after RTFOT at different temperatures (kPa)						PG grade
	58°C	64°C	70°C	76°C	82°C	88°C	58°C	64°C	70°C	76°C	82°C	88°C
G	12.031	7.508	4.761	3.051	1.967	1.276	23.439	15.333	10.253	6.933	4.668	3.127	88
A	11.203	6.922	3.986	2.353	1.429	0.794	22.585	14.964	9.086	6.288	3.673	1.833	82
B	7.551	4.254	2.438	1.431	0.863	0.538	19.028	10.886	6.341	3.757	2.276	1.412	76
C	11.068	6.208	3.609	2.196	1.392	0.909	27.105	17.912	11.908	7.842	5.081	3.251	82