In order to study the mechanical properties of eucalyptus bio-oil modified asphalt,the 70#A petroleum asphalt is modified by eucalyptus bio-oil.Bio-oil modified asphalt by adding different proportions of bio-oil(0,5%,10%and 15%)are prepared to use high-speed shear method.The rotational viscosity tests,the three major indexes tests,dynamic shear rheometer tests,bending beam rheological tests and Fourier transform infrared spectroscopy analysis are conducted.Research results show that eucalyptus bio-oil has a significant effect on viscosity reduction,which can effectively reduce the mixing and c...