Alumina tailing-based foam light soil and preparation method thereof

The invention discloses alumina tailing-based foam light soil and a preparation method thereof, and belongs to the technical field of building materials. The alumina tailing-based foam light soil is prepared from the following raw materials in parts by weight: 50 parts of cement, 20 parts of fly ash, 30 parts of mineral powder, 60-90 parts of flow-state alumina tailing mud (the water content is 200-300%), 0.3-0.5 part of silane coupling agent modified calcium stearate, 1-2 parts of a water reducing agent, and 400-1100L/m < 3 > of water and foam, wherein the water cement ratio is 0.6. According to the invention, the flow alumina tailing mud with high water content is taken as a raw material, and is matched with the silane coupling agent modified calcium stearate and other components, so that the foamed light soil with high strength, good impermeability and adjustable density can be prepared; and the problem of alumina tailing mud accumulation at present can also be solved. 本发明公开了一种铝土尾矿基泡沫轻质土及其制备方法，属于建筑材料技术领域。所