Abstract:In order to solve the problem of insufficient durability of drainage asphalt pavement, many scholars at home and abroad have focused their research on high-stick asphalt modifiers, so the laboratory has developed an HVA-H generation high viscosity modifier with strong bonding capacity and good durability, using this modifier and SBS modified asphalt in a reasonable shearing process, to prepare a highly viscous modified asphalt. The dispersion of high-viscosity modified asphalt at 4%, 6%, 8% and 10% respectively was observed by fluorescence microscope, the optimal doping amount was determined,The performance of the high adhesive bitumen was compared and analyzed with that of the original high adhesive bitumen in the laboratory. The results show that the best doping amount of HVA-H generation high-mucous modifier is 8%, HVA-H generation high-mucous modified asphalt is better than HVA generation high-viscosity modified asphalt and commercially available high-viscosity (powder) modified asphalt in terms of high-temperature performance; In practical application, the zero shear viscosity can be fitted by Carreau model, which has a good guiding effect on the study of modified asphalt high temperature performance.