Study on the effects of aging processes on the fatigue and self-healing properties of graphene oxide modified asphalt
YAO Huaiwei
XIONG Ying
CHEN Hailong
LI Xiao
LI Ruixia
Abstract：This study focuses on graphene oxide(GO)modified asphalt and 70#virgin asphalt as the research object,adopting the dynamic shear rheometer(DSR)to conduct frequency sweep tests,linear amplitude sweep(LAS)tests,and self-healing tests,aim-ing to reveal the variation patterns of fatigue self-healing properties of GO modified asphalt under various aging conditions.The re-sults indicate that GO can,to a certain extent,enhance the fatigue properties and self-healing properties of 70#virgin asphalt.Short-term and long-term aging processes improve the fatigue performance of both asphalts.Short-term UV exposure strengthens the fatigue performance of GO modified asphalt subjected to short-term and long-term aging,but prolonged UV exposure exerts detrimental effects.As the degree of aging intensifies,the self-healing properties of both GO modified asphalt and 70#virgin as-phalt gradually decline,and UV radiation further exacerbates this decline in self-healing capabilities.
Keywords：graphene oxide modified asphalt70#virgin asphaltagingfatigue propertiesself-healing properties
Publication Date：2026-02-25
Online Publishing Date：2026-03-25(First online date of this platform, not the publication date of the document)
Pages：5( 113-117 )