Inorganic cured foam material for surface leaking stoppage in shallow buried coal seam mining area and preparation method of the same

摘要

#$%^&*AU2014253466A120150205.pdf#####6 Abstract The invention discloses an inorganic cured foam material for surface leaking stoppage in a shallow buried coal seam mining area and a method for preparation of the inorganic cured foam material, which belong to an inorganic cured foam material and a method for preparation of the inorganic cured foam material. The leaking-stoppage cured foam comprises: water, coal ash, slaked lime, cement, ox horn powder, aluminum powder, copper oxide, polyphosphoric acid, aluminum hydroxide, hydroxypropyl methyl cellulose and steel fiber. The method for preparation of the inorganic cured foam material comprises the following steps: firstly, adding the coal ash, cement, hydroxypropyl methyl cellulose, steel fiber and slaked lime into water to form a coal ash substrate slurry; secondly, adding the ox horn powder into a small amount of water and stirring to form a prefabricated viscous liquid, and stirring sufficiently the coal ash substrate slurry and the prefabricated viscous liquid to form a mixed solution; thirdly, adding an inorganic adhesive system into the mixed solution and stirring sufficiently to form a mixed adhesive solution; and finally, adding the aluminum powder and stirring sufficiently to a homogeneous state, foaming the slurry by utilizing an organic self-foaming system, to prepare the inorganic cured foam material for surface leaking stoppage in a shallow buried coal seam mining area. According to the invention, the fracture infiltration capability is strong, the compressive strength is high, the high-temperature resistance and the heat insulation performance are good, and the substrate is purely inorganic and pollution-free. 6