High compressive and environment-friendly hollow brick and preparation method thereof

Abstract

The invention discloses a high compressive and environment-friendly hollow brick and a preparation method thereof. The hollow brick is composed of the following raw materials by weight: 26-30 parts ofindustrial waste soil, 20-25 parts of coal gangue, 4-5 parts of fluorite tailings, 4-5 parts of feldspar tailings, 10-12 parts of silt, 6-12 parts of water glass, 8-15 parts of ceramsite, 3-5 parts of asbestos powder, 5-8 parts of sepiolite powder, 5-7 parts of tourmaline powder, 4-6 parts of crop straw powder, 1-3 parts of glass fiber, 2-4 parts of carbon fiber, 3-5 parts of microsilica, 0.5-1 part of sodium gluconate, 0.5-1 part of hydroxypropyl methyl cellulose, and 4-6 parts of an anticorrosive paint. The preparation method includes: conducting crushing, dry blending, wet mixing, aging, moulding, coating, drying and sintering on the raw materials respectively, thus obtaining the product. The method provided by the invention utilizes waste to make the hollow brick, lowers the cost, andreduces environmental pollution. The obtained finished product has small porosity, light weight and high compressive strength.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a hollow brick, in particular to a high-pressure-resistant and environment-friendly hollow brick and a preparation method thereof. Background technique [0002] Hollow brick is the main wall material commonly used in the construction industry. Due to its advantages of light weight, high strength, heat preservation, and good sound insulation and noise reduction performance, it has become the first product recommended by the national construction department. Hollow bricks are made of clay, shale, etc. as the main raw materials, after raw material processing, molding, and sintering. Most of the existing hollow bricks are sintered hollow bricks. Sintered hollow bricks are referred to as porous bricks for short. They refer to shale, coal gangue or fly ash as the main raw materials, which have vertical holes after roasting (the porosity is not less than 25%, and the size of the holes sm...

AI Technical Summary

Problems solved by technology

However, the mainstream hollow bricks currently on the market have considered cost, water absorption, wear resistance, non-sandification and other properties, and their strength and compression resistance are poor, so they can only be used in places that do not bear weight.