Lean hematite tailing concrete light body building block brick and preparation method thereof

Abstract

The invention belongs to the technical field of building bricks and in particular relates to a lean hematite tailing concrete light body building block brick and a preparation method thereof. The hematite tailing concrete light body building block brick is manufactured by dry raw materials by weight percentage: 20%-30% of portland cement, 35%-45% of lean hematite tailing, 10%-20% of ceramsite and 15%-25% coal ash. The preparation method comprises the following process flows: pretreating the dry raw materials, mixing and stirring the materials, preparing wet material slurry, pressing and forming and obtaining end product building block green bricks. The preparation method turns to utilization of lean hematite tailing from earth excavation and field destroy, achieves comprehensive utilization and turns waste into wealth. The light body building block brick manufactured by lean hematite tailing can be used for building tailing ponds, thereby eliminating pollution of tailing on the environment, achieving comprehensive utilization of resource and protecting ecological environment.

Description

technical field [0001] The invention belongs to the technical field of building bricks, and in particular relates to a light-weight block brick made of lean hematite tailings concrete and a preparation method thereof. Background technique [0002] Lean hematite ore is an important type of iron ore in my country, and its beneficiation plays an important role in iron ore beneficiation in my country. Poor hematite tailings are industrial wastes with a large amount of iron content of 10-17% and silica content of 75-85%. A large amount of industrial waste has not been developed and utilized, resulting in a large amount of tailings occupying cultivated land, rivers, and polluting the environment. It is a social public hazard that needs to be solved urgently. The comprehensive utilization of lean hematite tailings can not only eliminate the harm of tailings to the environment, It can also be recycled as a resource, which has good environmental effects and high economic benefits. ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of product structure uniform, dense, high strength, energy-saving, environmental protection, low cost, long service life lean hematite tailings concrete light body block brick, to solve the problem of not using clay, using poor Technical problems of preparing light-weight block bricks from industrial waste such as iron ore tailings