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Method for preparing non-sintered brick from industrial waste residues

A technology for industrial waste residue and non-sintered bricks is applied in the field of building materials, which can solve the problems of high energy consumption and long maintenance time, and achieve the effects of low thermal conductivity, reduced processing cost and shortened preparation time.

Inactive Publication Date: 2016-11-09
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The existing non-sintered bricks usually use cement as the binder, and the curing time is very long, at least 7 days, and dozens of days at most
Those that do not use cement need to be cured by autoclaving (such as patent number 201310047588.1), and the energy consumption is still high

Method used

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  • Method for preparing non-sintered brick from industrial waste residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The non-fired brick of this embodiment is prepared from the following component raw materials in parts by weight: 95 parts of industrial waste slag (steel slag), and 5 parts of calcium oxide.

[0029] The non-fired brick of the present embodiment is prepared by the following method, which comprises the following steps:

[0030] (1) Pass the industrial waste residue through a 100-mesh sieve, so that the particle size of the industrial waste residue reaches the range of 120 μm to 150 μm;

[0031] (2) Weigh each raw material according to the following parts by weight: 95 parts of steel slag, 5 parts of calcium oxide, and then put each raw material into a ball mill to grind evenly, and the particle size of the powder reaches the range of 120 μm to 150 μm, and the material is made;

[0032] (3) Mix the material described in step (2) with an appropriate amount of water, add it to a steel abrasive tool for tablet molding, and the molding pressure is 0 MPa to make a flat embryo...

Embodiment 2

[0036] The non-fired brick of this embodiment is prepared from the following components by weight: industrial waste slag (steel slag + fly ash) = 95 parts, calcium oxide 5 parts.

[0037] The non-fired brick of the present embodiment is prepared by the following method, which comprises the following steps:

[0038] (1) Pass the industrial waste slag through a 100-mesh sieve, so that the particle size of steel slag and fly ash reaches the range of 120 μm to 150 μm;

[0039] (2) Weigh each raw material according to the following parts by weight: 95 parts of steel slag + fly ash in total, 5 parts of calcium oxide, and then put each raw material into a ball mill for uniform ball milling, and the particle size of the powder reaches the range of 120 μm-150 μm. into materials;

[0040] (3) Mix the material described in step (2) with an appropriate amount of water, add it to a steel abrasive tool for tablet molding, and the molding pressure is 5 MPa to make a flat embryo;

[0041] (...

Embodiment 3

[0044] The non-fired brick of this embodiment is prepared from the following components by weight: industrial waste residue (construction waste + fly ash) = 95 parts, calcium oxide 3 + magnesium oxide 2 = 5 parts.

[0045] The non-fired brick of the present embodiment is prepared by the following method, which comprises the following steps:

[0046] (1) Pass the industrial waste residue through a 100-mesh sieve, so that the particle size of the industrial waste residue reaches the range of 120 μm to 150 μm;

[0047] (2) Weigh each raw material according to the following parts by weight: 95 parts of the industrial waste residue (construction waste + fly ash), 3 parts of calcium oxide + 2 parts of magnesium oxide = 5 parts, and then put each raw material into a ball mill for uniform ball milling. The bulk particle size reaches the range of 120μm ~ 150μm, and it is made into materials;

[0048] (3) Mix the material described in step (2) with an appropriate amount of water, add i...

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Abstract

The invention discloses a method for preparing a non-sintered brick from industrial waste residues and belongs to the technical field of building materials. The method comprises taking 85-95 parts by weight of industrial waste residues with particle sizes of 120-150 microns and 5-15 parts by weight of a metal oxide, grinding and uniformly mixing the raw materials to obtain powder with particle sizes of 120-150 microns, mixing the powder and a proper amount of water, carrying out wet pressing molding to obtain a brick-shaped blank, maintaining the brick-shaped blank in a carbon dioxide maintenance furnace for 2 days, and taking out the non-sintered brick, wherein the metal oxide comprises one or more of alkaline earth oxides. The method is free of a cement binder and autoclaved curing, utilizes greenhouse gas carbon dioxide and industrial waste residues to prepare a building material brick, is a novel preparation method for production and development of building materials and interior and outdoor finishing materials, can eliminate greenhouse gas carbon dioxide and produces positive effects on environment protection.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a method for preparing non-fired bricks from industrial waste residues (the meaning of bricks herein includes bricks and tiles). Background technique [0002] The currently known research on using a variety of wastes to turn waste into treasure to make non-sintered bricks has made great achievements, and also obtained many new materials, such as the research and development of non-sintered bricks using urban sludge sintered shale, lakes The preparation method of a series of non-sintered bricks such as silt load-bearing sintered non-sintered bricks, concrete non-sintered bricks, coal gangue non-sintered bricks, western Hubei hematite tailings prepared non-sintered bricks, fly ash shale sintered non-sintered bricks, etc. [0003] Non-sintered bricks can be divided into two types: sintered and non-sintered (fire-free). [0004] Sintered type, such as Chinese patent applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00C04B18/14C04B18/12C04B18/08C04B111/27C04B111/28C04B111/52
CPCC04B18/08C04B18/12C04B18/142C04B30/00C04B2111/27C04B2111/28C04B2111/52C04B2201/50Y02W30/91
Inventor 陈艳林李进刘伟李雅琪彭航
Owner HUBEI UNIV OF TECH
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