The invention discloses anti-
ultraviolet-aging emulsified
asphalt and a preparation method thereof. The method comprises the following steps: S1, preparing a
mixed solution of
hydrochloric acid and
sodium nitrite, adding o-nitrochloroaniline and
uric acid, and conducting stirring to obtain diazonium salt; S2, placing the diazonium salt in an
ethanol solution, conducting stirring and dispersing, adjusting the pH value, conducting stirring, and adding
hydroquinone to obtain a material A; S3, adding
thiourea dioxide into the material A, and conducting stirring to obtain a
copolymer monomer; and S4, adding
aniline into a
hydrochloric acid solution, conducting stirring, sequentially adding an emulsifier,
ammonium persulfate, a flexibilizer, a curing agent and water-borne
epoxy resin, adding the
copolymer monomer and matrix
asphalt, and conducting emulsifying to obtain the emulsified
asphalt. The prepared emulsified asphalt mixture is good in
conductivity, high in stability, excellent in
ultraviolet aging resistance, mild in technological process, simple in reaction principle, very suitable for industrial production and market application and popularization, capable of greatly prolonging the service life of an asphalt material and extremely high in economic value and practicability.