Alkali activation slurry containing alkali activation solution and inorganic powder

Abstract

The invention discloses alkali activation slurry containing an alkali activation liquid and inorganic powder. The alkali activation slurry comprises inorganic powder and an alkali activation solution,wherein the inorganic powder comprises a silicate compound, the alkali activation solution is obtained by mixing an alkali activator and water, the alkali activator is prepared from one or more of analkali metal hydroxide, an alkali metal silicate and a silicic acid glue and one or more of an alkali metal aluminate or aluminum powder, the molar ratio of the silicon dioxide to the metal oxide inthe alkali activation solution is 0.25-0.5, and the molar ratio of the silicon dioxide to the aluminum oxide is 20-100. According to the invention, a slurry prepared from inorganic powder subjected toalkali activation is used as a bonding material, can be independently used as a reinforcing material or a fireproof material, and can also be added with a proper amount of coarse and fine aggregatesto form mortar or concrete to replace the traditional cement slurry so as to be used as a building material.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an alkali-activated slurry containing an alkali-activated liquid and inorganic powder. Background technique [0002] In recent years, due to the rapid development of industrial production and urban construction, a large amount of carbon dioxide has been emitted. The large amount of carbon dioxide emitted will accumulate in the atmosphere because it cannot be absorbed by the ocean and forests. The more carbon dioxide accumulated in the atmosphere, the more the temperature will increase. ; The more the temperature increases, the more carbon dioxide remains in the atmosphere, which forms a vicious circle, leading to the pollution of the earth's environment and the increasing greenhouse effect; Among them, the industries that produce the largest carbon dioxide emissions, except for steelmaking and coal burning Besides power generation, the most important thing ...

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Problems solved by technology

[0003] Cement is an important industry for global construction and economic development, but traditional cement paste needs to be prepared from calcium carbonate after high-temperature firing, which not only consumes a lot of energy, but also produces a lot of carbon dioxide during the production process; generally It is estimated that the production of 1 metric ton of cement will emit 880 kilograms of carbon dioxide. If the domestic annual cement production volume is about 2.1 billion metric tons, the annual amount of carbon dioxide produced by domestic cement production is as high as 1.8 billion metric tons

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