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Light high-strength mullite-quartz porous brick and preparation technology thereof

A preparation process and technology for porous bricks, which are applied in the fields of resources, environment and building materials, can solve the problems of reducing the service life of coal gangue bricks, insufficient porosity of coal gangue bricks, low brick strength, etc., achieving significant economic and environmental benefits, eliminating the need for Numerous environmental concerns, high-intensity effects

Inactive Publication Date: 2016-11-23
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Many bricks prepared from gangue are provided in the prior art, but the prepared bricks have low strength and are easily broken when vehicles pass by, which reduces the service life of gangue bricks; on the other hand, the prepared gangue Insufficient porosity of the bricks leads to the accumulation of water on the road in rainy weather, which cannot quickly penetrate into the ground surface, causing inconvenience for people to travel

Method used

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  • Light high-strength mullite-quartz porous brick and preparation technology thereof
  • Light high-strength mullite-quartz porous brick and preparation technology thereof
  • Light high-strength mullite-quartz porous brick and preparation technology thereof

Examples

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Embodiment 1

[0028] Such as figure 1 Shown, a kind of lightweight high-strength mullite-quartz porous brick, it comprises coal gangue, burnt gemstone and bauxite, wherein the raw material of said brick is composed of coal gangue, burnt gemstone, bauxite, fly ash and Clay, wherein the weight percentage content of each raw material is: coal gangue 50%, burnt gem 20%, bauxite 5%, fly ash 15%, clay 10%.

[0029] In this embodiment one, the coal gangue raw material composition and its weight percentage content are: Al 2 o 3 The content is 23%, SiO 2 The content is 65%, K 2 O content is 5%, Fe 2 o 3 The content is 5%, and the remaining unavoidable impurities are 2%.

[0030] In this embodiment one, the bauxite raw material composition and its weight percent content are: Al 2 o 3 The content is 60%, SiO 2 The content is 26%, Fe 2 o 3 The content is 8%, TiO 2 The content is 5%, and the remaining unavoidable impurities are 1%.

[0031] The process of preparing lightweight high-strength...

Embodiment 2

[0040] Such as figure 2 Shown, a kind of lightweight high-strength mullite-quartz porous brick, it comprises coal gangue, burnt gemstone and bauxite, wherein the raw material of said brick is composed of coal gangue, burnt gemstone, bauxite, fly ash and Clay, wherein the weight percentage content of each raw material is: coal gangue 54%, burnt gemstone 16%, bauxite 5%, fly ash 14%, clay 11%.

[0041] In the present embodiment two, the coal gangue raw material composition and its weight percentage content are: Al 2 o 3 The content is 24.5%, SiO 2 The content is 64.8%, K 2 O content is 4.3%, Fe 2 o 3 The content is 4.7%, and the remaining unavoidable impurities are 1.7%.

[0042] In this embodiment two, the bauxite raw material composition and its weight percent content are: Al 2 o 3 The content is 61.5%, SiO 2 The content is 25.6%, Fe 2 o 3 The content is 7.4%, TiO 2 The content of other unavoidable impurities is 4.7%, and the content of other unavoidable impuritie...

Embodiment 3

[0051] Such as image 3 Shown, a kind of lightweight high-strength mullite-quartz porous brick, it comprises coal gangue, burnt gemstone and bauxite, wherein the raw material of said brick is composed of coal gangue, burnt gemstone, bauxite, fly ash and Clay, wherein the weight percentage content of each raw material is: coal gangue 60%, burnt gem 15%, bauxite 5%, fly ash 12%, clay 8%.

[0052] In the present embodiment three, the coal gangue raw material composition and its weight percentage content are: Al 2 o 3 The content is 25%, SiO 2 The content is 65%, K 2 O content is 4.7%, Fe 2 o 3 The content is 4.3%, and the remaining unavoidable impurities are 1%.

[0053] In the present embodiment three, the bauxite raw material composition and its weight percent content are: Al 2 o 3 The content is 62%, SiO 2 The content is 23%, Fe 2 o 3 The content is 9%, TiO 2 The content is 5%, and the content of other unavoidable impurities is 1%.

[0054] The process of preparin...

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Abstract

The invention discloses a light high-strength mullite-quartz porous brick and a preparation technology thereof, belongs to the field of resources and environment and the technical field of building materials and aims at solving the technical problems of high brick preparation cost, low strength of the prepared bricks and easy water accumulation on brick surface in the prior art. The solution is as follows: the porous brick consists of the following raw materials in percentage by weight: 50-60% of coal gangue, 15-20% of flint clay, 5-10% of bauxite, 12-15% of fly ash and 8-12% of clay. The invention provides a technology for preparing the light high-strength mullite-quartz porous brick. In the invention, by fully utilizing the coal gangue and adding auxiliary materials into the coal gangue base material, the brick preparation cost is reduced, resource utilization of the coal gangue solid waste is realized, and the solid waste accumulation and environmental pollution are reduced; the prepared brick has the characteristics of light weight and high strength as well as good porosity and facilitates road surface drainage; and therefore, the porous brick prepared in the invention brings remarkable economic benefits and environmental benefits.

Description

technical field [0001] The invention belongs to the field of resources and environment and the technical field of building materials, and particularly relates to a preparation process and products thereof for preparing light-weight and high-strength mullite-quartz porous bricks using coal gangue mining waste residue as raw materials. Background technique [0002] Coal gangue is a kind of solid waste produced in the process of coal mining and coal washing. It is a hard black mixture rock with low carbon content formed by coal mines, soil and sandstone during the coal formation process. Its main component is is al 2 o 3 with SiO 2 , and Fe 2 o 3 、K 2 O et al. According to statistics, the coal gangue discharge in Shanxi Province is about 1.5 billion tons, ranking first in the country. There are about 1,540 coal gangue hills, covering an area of ​​about 260,000 hectares, with an average annual discharge of about 100 million tons. The accumulation and discharge of solid wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/132C04B33/135
CPCC04B33/132C04B33/1352C04B38/00C04B2111/00284C04B2201/20C04B2201/50C04B2235/3201C04B2235/3217C04B2235/3232C04B2235/3272C04B2235/3418C04B38/0067C04B38/0074Y02P40/60
Inventor 王凯悦田玉明武雅乔周毅力国民郝建英
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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