High-modulus asphalt mixture as well as preparation method and application thereof

The invention discloses a high-modulus asphalt mixture as well as a preparation method and application thereof, and belongs to the technical field of pavement construction. The high-modulus asphalt mixture is prepared by mixing high-modulus asphalt, aggregate, machine-made sand and mineral powder according to a preset proportion, the high-modulus asphalt has the needle penetration of 15-40mm, the softening point of more than or equal to 60 DEG C, the ductility of more than or equal to 5cm, the flash point of more than or equal to 230 DEG C, the density of more than or equal to 1.1 g/cm < 3 >, the elastic recovery rate of more than or equal to 50%, the 48-hour softening point difference corresponding to storage stability segregation of less than or equal to 2.5 DEG C, the mass change of less than or equal to +/-0.5%, the residual needle penetration ratio of more than or equal to 70% and the residual ductility of more than or equal to 2cm. When the high-modulus asphalt, replacing SBS modified asphalt or asphalt