Method capable of utilizing shales to produce aerated hollow brick

Abstract

The invention discloses a method capable of utilizing shales to produce an aerated hollow brick. The method comprises the following steps: (1), mixing such materials according to dry basis mass part as crushed shales with particle size of 1,000-1,500 meshes, lime and coal ash; and (2), according to the step (1), adding water in 85-95 percent of mixed material dry basis, adding waste aluminite powder in 0.04-0.06 percent of mixed material dry basis, gypsum in 9-11 percent lime, peregal in 1-4 percent of waste aluminite powder and triethanolamine in 0.1-0.3 percent of lime. According to the invention, a larger amount of the shales can be used to achieve the purposes of energy conservation and environment protection and ease the site problem caused by processing the shale piling, and a novel material source is provided for the hollow bricks.

Description

technical field [0001] The invention relates to the field of novel building materials, in particular to a method for preparing aerated hollow bricks by utilizing shale. Background technique [0002] Shale is a kind of sedimentary rock with complex composition, but all of them have lamellar or lamellar joints, mainly composed of clay deposits formed by pressure and temperature, but mixed with quartz, feldspar debris and other chemical Substances can be divided into: calcareous shale, iron shale, siliceous shale, carbonaceous shale, black shale, kerogen shale, etc., according to the composition of the mixed material, among which iron shale may become iron ore, Kerogen shale can be used to extract oil,[1] black shale can be used as an indicator formation for oil. [0003] Shale is formed in a still water environment, and sediment has been deposited for a long time, so it often exists in lakes and river deltas. Shale is also formed in the ocean continental shelf, and shale ofte...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method of using shale to prepare aerated hollow bricks. The amount of shale is large, which can alleviate the problems caused by shale storage and treatment, and at the same time provide a new source of raw materials for hollow bricks.