Graphene oxide and silica fume composite modified concrete and preparation method thereof

The invention relates to the technical field of novel materials for civil engineering, and discloses graphene oxide and silica fume composite modified concrete and a preparation method thereof.The preparation method comprises the following steps that a water reducing agent is added into water, stirring is conducted for the first time in a mechanical stirring mode, then GO is added into the solution, and stirring is conducted for the second time in a mechanical stirring mode; continuously stirring for the second time by adopting the mechanical stirring mode to obtain a solution A; during feeding, firstly adding the cement, the silica fume and the sand into a stirring pot, carrying out dry mixing, then adding the solution A, carrying out first stirring, and then adding the crushed stones, and carrying out second stirring; after stirring is completed, a slump test is conducted immediately, if the slump test is qualified, the mixture is loaded into a test mold brushed with a release agent, and after loading, the