In order to improve the aging resistance of bio-asphalt, the Buton-rock asphalt (BRA) was selected to modify bio-asphalt. The rheological and Micro-property tests were performed on four types of BRA modified bio-asphalt under different aging degrees. The bio-asphalt with 5% contents of bio-oil was prepared as the base binder. The BRA contents for the four types of BRA modified bio-asphalt were 5%, 10%, 15%, and 20% by weight of the base binder. A series of rheological property tests were performed on BRA modified bio-asphalt with unaged or aged...
