▎ 摘　　要

Iranian rock asphalt is chemically stable with stable performance at high temperatures and high corrosion resistance. Graphene's lamellar structure has also been shown to have anti-corrosion properties. In this study, a novel nano-anticorrosive coating was prepared using matrix asphalt, Iranian rock, graphene and epoxy resin as film forming materials. The corrosion resistance of the coating on the surface of building Q235 steel was tested. The doping of the Iranian rock and graphene can improve the high temperature and aging resistance of the anticorrosive coating. These properties increase with the increase of doping amount. Electrochemical impedance spectrum and polarization curves were used to characterize the anti-corrosion performance. The results show that the coating can significantly improve the anticorrosive effect of building steel structure. There is a positive correlation between the thickness of anticorrosive coating and its performance. The results of this study can provide reference for the corrosion protection research of civil engineering steel structures.(c) 2023 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).