Effect of Multiple-Walled Carbon Nanotubes (MWCNTs) on Asphalt Binder Rheological Properties and Performance

Table 5

Test results of modified asphalt binder with SBS.

Parameter	Criteria	Standard specifications	Modified asphalt binder
			1% SBS		3% SBS		5% SBS
			Test results	Measured temp.	Test results	Measured temp.	Test results	Measured temp.
RV, Pa s	3 Pa s, max	(AASHTO) (T-316)	0.8	@135°C	1.49	@ 135°C	2.09	@135°C
Aging	Unaged binder
G/sin δ, kPa	1 kPa, min	(AASHTO) (T-315)	1.87	@76°C	1.77	@82°C	2.89	@82°C
			0.923	@82°C	0.88	@88°C	0.78	@88°C
Aging	Rolling thin film oven (RTFO)
G/sin δ, kPa	2.2 kPa, min	(AASHTO) (T-315)	2.98	@70°C	2.43	@76°C	3.05	@82°C
			1.25	@76°C	1.62	@82°C	2.11	@88°C
Aging	Pressure aging vessel (PAV)
G. sin δ, kPa	5,000 kPa, max	(AASHTO) (T-315)	4,810	@28°C	4,210	@ 31°C	4,528	@31°C