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A kind of ceramic permeable brick and preparation method thereof

A technology for permeable bricks and ceramics, which is applied in the direction of ceramic products, ceramic material production, clay products, etc., can solve the problems of easy pulverization, short service life, etc., to achieve convenient ball making and molding, good freeze-thaw resistance, and increased use effect of life

Active Publication Date: 2022-03-29
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a ceramic permeable brick and its preparation method in view of the deficiencies of the above-mentioned prior art. problems, and overcome the problems of easy pulverization and short service life of non-fired permeable bricks, and can also take into account the strength requirements of urban hardened road surfaces and the storage and drainage capacity, and realize the resource utilization of foundry waste sand

Method used

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  • A kind of ceramic permeable brick and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] The ceramic permeable brick of this embodiment is made of the following raw materials in mass percentage: 30% synthetic spherical aggregate of high-strength casting waste sand with a particle size of 495 μm to 5880 μm, 60% of quartz waste sand with a particle size greater than 417 μm, and high-temperature flux a 8% of waste glass powder, and the balance is temporary bonding agent a water glass; the synthetic spherical aggregate of high-strength foundry waste sand is made of the following raw materials in mass percentage: foundry waste sand with a particle size less than 417 μm (quartz with a particle size less than 417 μm) quality waste sand) 80%, high-temperature flux b (a mixture of granite fine powder and calcium fluoride sludge with a mass ratio of 3:1) 12%, and the balance is temporary binder b dextrin;

[0024] The high-strength foundry waste synthetic spherical aggregate is composed of high-strength foundry waste synthetic spherical aggregate with different partic...

Embodiment 2

[0036] The ceramic permeable brick of this embodiment is made of the following raw materials in mass percentage: 33% synthetic spherical aggregate of high-strength foundry waste sand with a particle size of 495 μm to 5880 μm, foundry waste sand with a particle size greater than 417 μm (kyanite with a particle size greater than 417 μm quality waste sand) 55%, high-temperature flux a waste glass powder 10%, and the balance is temporary binder a water glass; the high-strength foundry waste sand synthetic spherical aggregate is made of the following raw materials in mass percentage: the particle size is less than 417 μm Foundry waste sand (kyanite waste sand with particle size less than 417μm) 90%, high-temperature flux b calcium fluoride sludge 7%, and the balance is temporary binder b (dextrin and dextrin with a mass ratio of 3:4 mixture of soft clay);

[0037] The high-strength foundry waste synthetic spherical aggregate is composed of the following high-strength foundry waste ...

Embodiment 3

[0044] The ceramic permeable brick of this embodiment is made of the following raw materials in mass percentage: high-strength casting waste sand with a particle size of 495 μm to 5880 μm synthetic spherical aggregate 40%, foundry waste sand with a particle size greater than 417 μm (magnesia waste with a particle size greater than 417 μm) Sand) 50%, high-temperature flux a (a mixture of granite fine powder and calcium fluoride sludge with a mass ratio of 5:3) 8%, and the balance is temporary binder a water glass; the high-strength casting waste sand is synthesized into a spherical shape Aggregate is made of the following raw materials in mass percentage: foundry waste sand with particle size less than 417 μm (magnesia waste sand with particle size less than 417 μm) 85%, high-temperature flux b calcium fluoride sludge 12%, and the balance is temporarily combined Agent b (a mixture of dextrin and soft clay with a mass ratio of 3:7);

[0045] The high-strength foundry waste synth...

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Abstract

The invention provides a ceramic permeable brick, which is made of high-strength foundry waste sand synthetic spherical aggregate, foundry waste sand with a particle size greater than 417 μm, high-temperature flux a and temporary binder a; a preparation method is also provided, wherein the particle size is less than 417μm foundry waste sand, high-temperature flux b and temporary binder b are mixed to obtain the mixture, add water, ball mill, dry, granulate, sieve, classify, and sinter to obtain high-strength foundry waste sand synthetic spherical aggregate, and synthesize high-strength foundry waste sand Spherical aggregate, foundry waste sand with a particle size greater than 417 μm, high-temperature flux a and temporary binder a are mixed, pressurized, dried, and sintered to obtain ceramic permeable bricks. The ceramic permeable brick of the present invention has good water permeability and high compressive strength, responds to the needs of sponge city construction, solves problems such as poor drainage of urban hardened road surfaces, and overcomes the problems of easy pulverization and short service life of non-fired permeable bricks, and can Taking into account the strength requirements of the urban hardened road surface and the storage and drainage capacity to realize the utilization of foundry waste sand.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a ceramic permeable brick and a preparation method thereof. Background technique [0002] my country is a big foundry country, which consumes millions of tons of molding sand for casting every year, which also produces a large amount of foundry waste sand. Except for a small part of waste sand being effectively used, a large amount of waste sand is discarded at will, which is not only a waste of resources, but also easily causes environmental pollution. In addition, during the casting process, the waste sand is treated at high temperature to form a relatively stable crystal phase, which is characterized by wear resistance and high strength in terms of physical properties. At present, a feasible disposal method for this kind of waste sand is to prepare it into non-fired permeable bricks, such as: Chinese patent "a whole-body sand-based permeable brick with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132C04B33/32C04B38/00
CPCC04B33/1328C04B33/132C04B33/1321C04B33/1305C04B33/131C04B38/0038C04B2235/3427C04B2235/96Y02P40/60
Inventor 马成良詹学武吴晓鹏王世界赵飞邢益强崔杏辉巩志伟陈凯阳
Owner ZHENGZHOU UNIV