Grouting material, preparation method and application thereof in seepage-proofing and water-plugging construction

The invention provides a grouting material and a preparation method thereof, and belongs to the technical field of underground engineering materials. The grouting material provided by the invention comprises the following raw materials: 760-800 parts of clay, 80-120 parts of cement, 30-70 parts of bentonite, 700-800 parts of water, 5-15 parts of water glass and 1-5 parts of a water reducing agent.According to the invention, bentonite is used for improving the clay basic slurry, and complex reaction with a cement hydration product is carried out, so that the water flushing release resistance,strength and permeation resistance of the slurry are improved, and the product has excellent economical efficiency; the water glass accelerates the gelling time of the material and generates relatively stable micelles with the clay cement slurry; the water reducing agent reduces the porosity of the material and improves the strength and impermeability of the material. The initial setting time of the grouting material is 75