Method for preparing high stone powder mixing quantity porous baked brick

Abstract

The invention belongs to the field of building material, and relates to a method for preparing a high stone powder mixing quantity porous baked brick which comprises the raw materials by weight percent: 80-95% of stone powder, 3-5% of sintering auxiliary agent and 0-17% of additive. The raw materials are simultaneously added pore for forming a medium with the weight accounting for 3-10% of the total weight of the powder, and the solvent is water solution containing 1-5% of binding agent. The preparation method comprises the steps such as weighing the raw materials, mixing, molding, drying, sintering, cooling and the like. As the organic binding agent and the sintering auxiliary are added, the bonding force among stone powder particles can be enhanced, and the formability and the sinteringperformance of adobe can be improved. By adding the pore for forming the medium, the density of the baked brick can be reduced. The invention has simple technique, low cost, high stone powder demand,energy conservation, environmental protection as well as high strength and low density of the baked brick. The invention can increase the stone powder mixing quantity in the baked brick and simultaneously reduce the density of the baked brick, thus being beneficial to expanding the application field of the baked brick and improving the using performance thereof.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a technique for producing porous sintered bricks with waste rock powder as the main raw material. Background technique [0002] Stone powder is the main waste produced in the production process of stone processing enterprises. The huge amount of waste stone powder not only occupies space, but also pollutes the environment, seriously affecting the production and life of local residents. At present, the reuse of waste rock powder has become an important bottleneck restricting the harmonious development of stone companies and the local economy. [0003] The main components of stone powder are minerals such as quartz, feldspar and mica. At present, its application and transformation are mainly used as a filler for concrete, and for the preparation of unburned bricks and sintered bricks. Among them, sintered bricks are currently attracting attention from all wa...

AI Technical Summary

Problems solved by technology

[0005] According to the search, there is no report at home and abroad that uses stone powder as the main raw material to prepare porous sintered bricks with high stone powder content by adding organic binders and sintering aids and adding pore-forming media at the same time.