High-performance regenerated SBS modified asphalt and preparation method thereof

The invention discloses high-performance regenerated SBS modified asphalt and a preparation method thereof.The regenerated SBS modified asphalt is prepared from aged SBS modified asphalt, a component regulator, an SBS structure regenerant, a compatilizer and a stabilizer, the component regulator is aromatic hydrocarbon oil, the SBS structure regenerant is at least one of a multi-epoxy-group compound or a dioxazoline compound, the compatilizer is at least one of a compatilizer and a compatilizer, and the stabilizer is at least one of a compatilizer and a compatilizer. The compatilizer is an anhydride compound, and the stabilizer is sulfur. According to the present invention, the components of the regenerated asphalt are adjusted, the cross-linked network structure of the SBS polymer in the regenerated asphalt is reconstructed, and the performance of the aged SBS modified asphalt can be recovered to a high level. The high-temperature and low-temperature pavement performance of the high-performance SBS modified