Preparation method of basalt fiber asphalt

The invention relates to the technical field of asphalt, and discloses a preparation method of basalt fiber asphalt, 64-88 parts by mass of basalt powder and 3-20 parts by mass of zircon sand are mixed and crushed, then put into an electric melting furnace for melting and wire drawing to obtain a wire drawing product, under standard atmospheric pressure, the wire drawing product is cooled to 40-60 DEG C, and then 3-15 parts by mass of a surfactant is added. According to the scheme, basalt powder and zircon sand are mixed, smashed and then drawn, a buffering agent and a surfactant are added, drying and short cutting are conducted, the content of all the substances can be accurately determined, accordingly, proper basalt fibers are prepared, then the basalt fibers and ceramic fibers are mixed, and the composite material is obtained. The basalt fiber asphalt is prepared from the sodium hydroxide, the sodium hydroxyethyl sulfonate, the dilauryl mercapto peroxide and the stearic acid, the preparation method is sim