Anticorrosive treatment coating applicable to directly-buried heat preservation pipes and construction process thereof

The invention provides an anticorrosive treatment coating applicable to directly-buried heat preservation pipes. The anticorrosive treatment coating consists of a component A and a component B, wherein the component A consists of phenolic epoxy resin, nanometer toughened epoxy resin, tung oil, a reactive diluent, microcrystalline cellulose, a defoaming agent, modified graphene, a leveling agent, N-methyl-2-pyrrolidone, polyoxyethylene nonylphenol ether, mercaptobenzothiazole and sodium alpha-alkenyl sulfonate; and the component B consists of diethylenetriamine and N-aminoethylpiperazine. The anticorrosive treatment coating of the invention is easy to produce; in use, the anticorrosive treatment coating can be used for the anticorrosion of the directly-buried heat preservation pipes only bymixing the component A and the component B uniformly, so the operation is convenient; and the directly-buried heat preservation pipes having undergone anticorrosion treatment not only have excellentanticorrosion ability, but