▎ 摘　　要

NOVELTY - Preparing asphalt pickering emulsion comprises mixing the asphalt solution with the graphene oxide aqueous dispersion, and performing ultrasonic dispersion to obtain asphalt pickering emulsion, where the pH value of the graphene oxide aqueous dispersion is 4-6. USE - The pickering emulsion is useful in building engineering (claimed), where the asphalt solution comprises petroleum asphalt, coal tar pitch and natural asphalt. ADVANTAGE - The pickering emulsion has excellent stability at normal temperature, which can improve the use effect of asphalt at normal temperatures and excellent dispersibility of graphene oxide, is not easy to agglomerate, has excellent stability, can replace the use of traditional small molecule surfactant reducing the harm to the environment and human health, and has excellent application prospect in building engineering. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for asphalt pickering emulsion prepared by the preparation method, comprising dispersed asphalt droplets and graphene oxide nanosheets wrapped at the water-oil interface outside the asphalt droplets, and asphalt pickering emulsion exhibits core-shell structure.