Rebar planting adhesive composition as well as preparation method and application thereof

The invention provides a bar planting adhesive composition, which is composed of a component A and a component B which are respectively stored at ordinary times and mixed during use, and the mass ratio of the component A to the component B is 2: 1; wherein the component A is modified epoxy resin and is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyurethane modified epoxy resin, 10 to 40 parts of bisphenol A epoxy resin, 1 to 20 parts of AG-80 epoxy resin, 1 to 20 parts of reactive diluent, 1 to 5 parts of coupling agent, 1 to 10 parts of thixotropic agent, 1 to 5 parts of stabilizer and 50 to 80 parts of modified inorganic filler; the component B is prepared from the following raw materials in parts by weight: 30 to 45 parts of a modified amine curing agent, 5 to 20 parts of an epoxy toughening agent, 1 to 15 parts of an accelerant and 1 to 20 parts of a thixotropic agent. The invention further provides a preparation method of the embedded steel bar adhesive composition a