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Autoclaved brick and method for preparing same

A technology of autoclaved bricks and manufacturing methods, which is applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of limited development of autoclaved bricks, and achieve the effects of improved heat exchange effects, increased ultimate pressure, and low water absorption

Inactive Publication Date: 2019-03-12
河北瑞天建材制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes an autoclaved brick and its preparation method, which solves the problem of limited development of autoclaved bricks caused by poor strength and frost resistance of autoclaved bricks in the prior art

Method used

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  • Autoclaved brick and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An autoclaved brick: fly ash 50, slag 5, tailing sand 5, iron oxide black 2, carbide slag 6, quicklime 4, water 7.

[0046] The preparation method is:

[0047] a: According to the above mass ratio, the above components are crushed and mixed uniformly to obtain a mixed material,

[0048] c: digest and age the mixed material obtained in step a for 2-4 hours,

[0049] d: Wheel mill the digested material for 3-5 minutes,

[0050] e: Pressing and molding the material obtained in step d, the molding pressure is 15-20MPa, applying pressure in stages to obtain bricks,

[0051] f: The brick adobe is kept at 15-35°C and the humidity is 70%-95%, and then after vacuuming, it is maintained at 190-220°C for 6-8 hours under autoclaved pressure to obtain an autoclaved brick product.

[0052] Staged pressure includes,

[0053] S1, applying a pressure of 15-20MPa to the material obtained in step d for 8-10s;

[0054] S2, canceling the pressure,

[0055] Repeat the S1-S2 operation a...

Embodiment 2

[0057] An autoclaved brick: fly ash 53, slag 6, tailing sand 7, iron oxide black 2.5, carbide slag 7, quicklime 5, water 10.

[0058] The preparation method is:

[0059] a: According to the above mass ratio, the above components are crushed and mixed uniformly to obtain a mixed material,

[0060] c: digest and age the mixed material obtained in step a for 2-4 hours,

[0061] d: Wheel mill the digested material for 3-5 minutes,

[0062] e: Pressing and molding the material obtained in step d, the molding pressure is 15-20MPa, applying pressure in stages to obtain bricks,

[0063] f: The brick adobe is kept at 15-35°C and the humidity is 70%-95%, and then after vacuuming, it is maintained at 190-220°C for 6-8 hours under autoclaved pressure to obtain an autoclaved brick product.

[0064] Staged pressure includes,

[0065] S1, applying a pressure of 15-20MPa to the material obtained in step d for 8-10s;

[0066] S2, canceling the pressure,

[0067] Repeat the S1-S2 operation ...

Embodiment 3

[0069] An autoclaved brick: fly ash 55, slag 7, tailing sand 10, iron oxide black 3, carbide slag 8, quicklime 6, water 12.

[0070] The preparation method is:

[0071] a: According to the above mass ratio, the above components are crushed and mixed uniformly to obtain a mixed material,

[0072] c: digest and age the mixed material obtained in step a for 2-4 hours,

[0073] d: Wheel mill the digested material for 3-5 minutes,

[0074] e: Pressing and molding the material obtained in step d, the molding pressure is 15-20MPa, applying pressure in stages to obtain bricks,

[0075] f: The brick adobe is kept at 15-35°C and the humidity is 70%-95%, and then after vacuuming, it is maintained at 190-220°C for 6-8 hours under autoclaved pressure to obtain an autoclaved brick product.

[0076] Staged pressure includes,

[0077] S1, applying a pressure of 15-20MPa to the material obtained in step d for 8-10s;

[0078] S2, canceling the pressure,

[0079] Repeat the S1-S2 operation...

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Abstract

The invention belongs to the technical field of autoclaved bricks, and provides an autoclaved brick and a method for preparing the same. The autoclaved brick comprises, by weight, 50-55 parts of fly ash, 5-7 parts of slag, 5-10 parts of tailing sand, 2-3 parts of iron oxide black, 6-8 parts of calcium carbide residues, 4-6 parts of quicklime and 7-12 parts of water. The method for preparing the autoclaved brick includes crushing components according to mass ratios and then uniformly mixing the components with one another to obtain mixed materials; digesting and ageing the obtained mixed materials for 2-4 h; carrying out wheel grinding on digested and aged materials for 3-5 min; carrying out compression molding on obtained materials at the molding pressures of 15-20 MPa and applying pressures in a sectioned manner to obtain green bricks; carrying out static curing on the green bricks under the conditions of the temperature of 15-35 DEG C and the humidity of 70%-95%; carrying out vacuumizing, then carrying out curing at the temperatures of 190-220 DEG C under the steam pressures for 6-8 h to obtain autoclaved brick products. According to the technical scheme, the autoclaved brick andthe method have the advantage that the problem of limited development of existing autoclaved bricks due to poor strength and frost resistance of the existing autoclaved bricks in the prior art can besolved by the aid of the autoclaved brick and the method.

Description

technical field [0001] The invention belongs to the technical field of autoclaved bricks, and relates to an autoclaved brick and a preparation method thereof. Background technique [0002] Resources, energy, environment, economy and performance make materials science, especially the development of building materials industry, should be considered comprehensively. Natural resources are limited, and human beings have begun to face the threat of depletion of natural resources. Excessive waste and abandonment of natural resources have How to protect limited natural resources is directly related to the protection of human living environment. Wall materials are long-term products. To ensure a continuous supply of raw materials for wall materials, attention must be paid to the economical use of natural resources, the comprehensive utilization of solid waste, and the repeated circulation of natural resources. [0003] Autoclaved brick products are building materials that have been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B40/02B28B3/02B28B11/24
CPCB28B3/02B28B11/24C04B28/10C04B40/024C04B2201/50C04B18/08C04B18/06C04B18/12C04B14/308C04B18/0481C04B22/002
Inventor 高建茹
Owner 河北瑞天建材制造有限公司
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