Analysis of Natural Aging Behavior of Asphalt Binder in Cold and Arid Region

Table 2

The effect degree of different natural aging methods on the properties of asphalt binder.

Properties	Effect
Viscoelastic properties	TO + UV > all > TO
High-temperature performance	All > TO + UV > TO
Stiffness modulus at −6°C	All > TO + UV > TO
Stiffness modulus at −12°C	All = TO + UV > TO
Stiffness modulus at −18°C	All > TO + UV > TO
Functional group	All > TO + UV > TO
Mn	TO + UV > TO > all
	All > TO + UV > TO