Changes in Nanoscaled Mechanical and Rheological Properties of Asphalt Binders Caused by Aging

Table 3

Rheological properties of asphalt before and after RTFO tests.

Test project	Test temperature/°C	Asphalt	RTFO aged asphalt residual
(KPa)	52	5.10	13.70
	58	2.25	5.77
	64	1.05	2.46
	70	0.50	1.44
Phase angle (°)	52	85.8	82.5
	58	86.7	84.5
	64	87.2	86
	70	86.3	84.4
(KPa)	52	5.10	13.58
	58	2.25	5.74
	64	1.05	2.45
	70	0.50	1.43
Elastic (KPa)	52	0.37	1.77
	58	0.13	0.55
	64	0.05	0.17
	70	0.03	0.14
Viscous (KPa)	52	5.09	13.47
	58	2.25	5.72
	64	1.05	2.45
	70	0.50	1.43