Comprehensive analysis of effect of high-acid-value waste cooking oil on adhesion between aged asphalt and aggregates.

ABSTRACT: Waste cooking oil (WCO) has widespread applications in the rejuvenation of aged asphalt. A few investigations have been conducted on the multiscale adhesion properties and rejuvenation mechanism of aged asphalt-aggregate surfaces treated with high-acid-value WCO. This research focuses on the implications of WCO on the interfacial adhesion of aged asphalt from both macroscopic and microscopic structural viewpoints. The asphalt-aggregate interfacial adhesion was macroscopically assessed through binder bond strength (BBS) tests, and the microscopic mechanism of activation was investigated using a molecular dynamics model. The findings show that through promoting microstructure recovery and mitigating the adverse consequences of aging, WCO might enhance the adhesion strength of aged asphalt. A

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12611140 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature