Special asphalt for airport pavement and preparation method thereof

The invention discloses special asphalt for an airport pavement. The special asphalt is prepared from the following components in parts by weight: 70-84 parts of matrix asphalt, 3-5 parts of chlorosulfonated polyethylene, 3-5 parts of an octavinyl polyhedral oligomeric silsesquioxane modifier, 10-20 parts of SEBS (Styrene-Ethylene-Butylene-Styrene) and 0.1-0.3 parts of a stabilizer. The invention also provides a preparation method of the special asphalt for the airport pavement. The special asphalt for the airport pavement, provided by the invention, is very excellent in viscosity and toughness, impact resistance and oxidation resistance. According to the preparation method of the special asphalt for the airport pavement, provided by the invention, after the components in certain parts by weight are mixed, a structure that a polymer macromolecular chain penetrates through a POSS (Polyhedral Oligomeric Silsesquioxane) body-asphalt network is formed in an asphalt mixture, so that the impact resistance and the t