Soil improvement material taking olivine as raw material as well as preparation method and application of soil improvement material

The invention is applicable to the technical field of soil remediation, and provides a soil improvement material taking olivine as a raw material and a preparation method and application thereof, the main component of the soil improvement material is amorphous silicon dioxide, and the soil improvement material comprises the following raw materials: olivine slag and potassium hydroxide particles. The preparation method provided by the invention is simple to operate, low in cost and good in effect, and overcomes the defects of complex operation, high cost and poor effect of a conventional method. The soil improvement material prepared by taking olivine as a raw material has the advantages of accelerating soil structure construction, promoting aggregate generation, improving water retention and air permeability of soil and the like, and has certain potential in inhibition of soil salinization. Meanwhile, the waste olivine-containing slag is recycled, so that the green and environment-friendly thought of turning