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Self heat reserving sintered porous brick and sintering technology

A porous brick and self-insulation technology, applied in the field of building materials, can solve the problems affecting the application range of porous bricks, low sintering success rate, poor sintering quality, etc., and achieve the effects of good industrial application prospects, high comprehensive quality and low cost.

Inactive Publication Date: 2018-06-15
HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing production of porous bricks still has problems such as high cost, complex process, low sintering success rate, and poor sintering quality, which greatly affects the application range of porous bricks, and further improvement of raw materials and processes is required to obtain better performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A self-insulating sintered porous brick, comprising the following components in percentage: 40% of activated feldspar tailings, 15% of fly ash, 8% of microsilica fume, 10% of serpentine waste rock, and the balance of shale.

[0021] Among them, the activated feldspar tailings are a mixture of anorthite tailings and potassium feldspar tailings with a mass ratio of 1:5. The preparation method of the activated feldspar tailings is as follows: take the raw materials of anorthite tailings and potassium feldspar tailings according to the mass ratio, wash them with water After re-selection, magnetic separation is performed once, then crushed through a 15-mesh sieve, washed with water and re-selected, and then magnetically separated for the second time; the raw materials after the second magnetic separation are sent to a blender for blending, and a mixture of 1 times the total mass of raw materials is added to it. The mixed solution is a composition of borax water, phosphate buf...

Embodiment 2

[0029] A self-insulating sintered porous brick, comprising the following components in percent: 50% of activated feldspar tailings, 5% of fly ash, 3% of microsilica fume, 7% of serpentine waste rock, and the balance of shale.

[0030] Among them, the activated feldspar tailings are a mixture of anorthite tailings and potassium feldspar tailings with a mass ratio of 1:8, and the preparation method of the activated feldspar tailings is as follows: take the anorthite tailings raw materials and potassium feldspar tailings raw materials according to the mass ratio, wash with water After re-selection, magnetic separation is performed once, then crushed through a 15-mesh sieve, washed with water and re-selected, and then magnetically separated for the second time; the raw materials after the second magnetic separation are sent to a blender for blending, and a mixture of 2 times the total mass of raw materials is added to it. The mixed solution is a composition of borax water, phosphat...

Embodiment 3

[0038] A self-insulating sintered porous brick, comprising the following components in percent: 70% of activated feldspar tailings, 10% of fly ash, 4% of microsilica fume, 5% of serpentine waste rock, and the balance of shale.

[0039] Among them, the activated feldspar tailings are a mixture of anorthite tailings and potassium feldspar tailings with a mass ratio of 1:10. The preparation method of the activated feldspar tailings is as follows: take the raw materials of anorthite tailings and potassium feldspar tailings according to the mass ratio, and wash them with water. After re-selection, magnetic separation is performed once, then crushed through a 15-mesh sieve, washed with water and re-selected, and then magnetically separated for the second time; the raw materials after the second magnetic separation are sent to a blender for blending, and a mixture of 2 times the total mass of raw materials is added to it. Liquid, the mixed solution is a composition of borax water, pho...

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Abstract

The invention provides a self heat reserving sintered porous brick and a sintering technology. The sintered porous brick comprises following components in percentage by weight: 20 to 70% of activatedfeldspar tailings, 5 to 30% of fly ash, 3 to 10% of silica fume, 5 to 15% of waste serpentine, and the balance being shale. By selecting reasonable raw materials and improving the technology, the porosity of obtained sintered porous brick is greater than 28%, the compressive strength is greater than 36.7 MPa, the heat conductivity coefficient is less than 0.095 W / m.K, the wastes are fully utilized, the cost is low, the brick quality is high, and the technology has a good industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-insulating sintered porous brick and a sintering process. Background technique [0002] The use of brick and tile materials in residential buildings in our country is as high as about 85%. The traditionally used bricks are mostly clay solid bricks, which not only destroy a large amount of land every year, but also destroy the ecological environment. Meet existing building needs. Therefore, be badly in need of developing novel body of wall material to replace traditional solid brick. Porous brick refers to clay, shale, fly ash as the main raw materials, formed by molding and roasting, the porosity is equal to or greater than 15%, the hole type is round hole or non-round hole, the size of the hole is small and the number is large The brick body is mainly suitable for load-bearing walls and is a new type of wall material with better comprehensive quality at prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/135C04B33/138C04B33/36C04B33/32C04B33/30C04B38/00
CPCC04B33/1324C04B33/1352C04B33/138C04B33/30C04B33/32C04B33/36C04B35/62605C04B38/00C04B2235/3201C04B2235/3409C04B2235/447C04B2235/5276C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/96C04B2235/9607C04B38/0074Y02P40/60
Inventor 严艾青黄奋举
Owner HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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