A manganese tailings permeable brick and its preparation method

Abstract

The invention discloses a manganese tailing water permeable brick and a preparation method thereof. The manganese tailing water permeable brick comprises a base layer and a facing layer, and a base layer blank comprises the following raw materials in parts by mass: 40-60 parts of manganese tailings, 10-15 parts of cement, 15-20 parts of water and 0.135-0.38 part of a pore forming agent; the facinglayer blank is prepared from the following raw materials in parts by mass: 35 to 50 parts of manganese tailings, 10 to 15 parts of cement, 15 to 20 parts of water and 0.12 to 0.34 part of pore forming agent. The components such as SiO2 and Al2O3 in the tailings have potential gelling activity; under the action of cement, the gelling property can be exerted and the basic conditions for making bricks can be met; manganese ore is used as a main raw material, a small amount of cement is used as a cementing material, a pore-forming agent is added for uniform mixing and stirring, the water permeable brick is prepared through compression molding and maintenance, the raw materials are easy to obtain, the preparation process is simple, a high-temperature sintering process is avoided, energy consumption is greatly reduced, meanwhile, the raw material cost is reduced, and industrialization is facilitated.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a manganese tailings permeable brick and a preparation method thereof. Background technique [0002] The most direct way to comprehensively utilize tailings is to use tailings as building materials. Manganese ore tailings are waste rocks produced in the process of manganese ore mining and beneficiation. They have been stacked in manganese ore tailings ponds for a long time, occupying a large amount of agricultural and forestry land, resulting in land in the area where the manganese ore tailings ponds are located (Guangxi, Hunan and other places) ) resource imbalance. Tailings are widely used in the field of building materials. Technologies such as using tailings to make aerated concrete and tailings to make wood-based panels have achieved certain results. However, there are few studies on using tailings to make permeable bricks. Most of the permeable bricks prepared fr...

AI Technical Summary

Problems solved by technology

Tailings are widely used in the field of building materials. Technologies such as using tailings to make aerated concrete and tailings to make wood-based panels have achieved certain results. However, there are few studies on using tailings to make permeable bricks. Most of the permeable bricks prepared from tailings are made by high-temperature sintering method, which leads to their good compressive strength, but the cost of sintered permeable bricks is high and it is not conducive to environmental protection

Images