阅读说明：本技术 一种花岗岩瓷质透水砖及其制备方法 (Granite ceramic water permeable brick and preparation method thereof ) 是由 周伟军 范国雄 胡启成 蔡世杰 曾睿 于 2019-09-02 设计创作，主要内容包括：本发明公开了一种花岗岩瓷质透水砖,包括底料和面料,所述底料由陶瓷废料、粘结剂与水制成；所述面料由按重量份计的以下组分制成：40-80份水洗钠石粒、17-22份陶瓷废料、6-9份粘结剂、2-5份助熔剂、0.6-3份铝粉、0.4-3份色料、1-6份黑砂和3-5份的水制成；所述水洗钠石粒中二氧化硅含量大于70％。本发明还提供了该花岗岩瓷质透水砖的制备方法,包括对底料中的陶瓷废料进行筛分配级和采用二次混料法制得面料混合料。该花岗岩瓷质透水砖具有仿花岗岩的外形、质感和光泽,透水砖整体上强度、透水性及防滑性满足国标要求。(The invention discloses a granite porcelain water permeable brick which comprises a backing material and a fabric, wherein the backing material is prepared from ceramic waste, a binder and water; the fabric is prepared from the following components in parts by weight: 40-80 parts of washed sodalite particles, 17-22 parts of ceramic waste, 6-9 parts of binder, 2-5 parts of fluxing agent, 0.6-3 parts of aluminum powder, 0.4-3 parts of pigment, 1-6 parts of black sand and 3-5 parts of water; the content of silicon dioxide in the washed sodalite particles is more than 70%. The invention also provides a preparation method of the granite ceramic water permeable brick, which comprises the steps of screening and grading ceramic waste in a backing material and preparing a fabric mixture by adopting a secondary mixing method. The granite ceramic water permeable brick has the appearance, texture and luster of the imitation granite, and the strength, water permeability and skid resistance of the whole water permeable brick meet the national standard requirements.)

1. The granite porcelain water permeable brick is characterized by comprising a backing material and a fabric, wherein the backing material is prepared from ceramic waste, a binder and water; the fabric is prepared from the following components in parts by weight: 40-80 parts of washed sodalite particles, 17-22 parts of ceramic waste, 6-9 parts of binder, 2-5 parts of fluxing agent, 0.6-3 parts of aluminum powder, 0.4-3 parts of pigment, 1-6 parts of black sand and 3-5 parts of water; the content of silicon dioxide in the washed sodalite particles is more than 70 percent; the ceramic waste of the bottom material is formed by screening and grading ceramic waste with more than 6-30 meshes, and the washed sodalite grains of the surface material are formed by screening and grading washed sodalite grains with 10-40 meshes.

2. The granite ceramic water permeable brick of claim 1, wherein the ceramic waste of the bed material consists of 15-53 parts of ceramic waste of 6-10 meshes, 25-40 parts of ceramic waste of 10-16 meshes, 5-10 parts of ceramic waste of 16-30 meshes and 10-20 parts of ceramic waste of more than 30 meshes.

3. The granite ceramic water permeable brick of claim 1, wherein the binder is an inorganic binder of the silicate type.

4. The granite ceramic water permeable brick of claim 1, wherein the backing material is composed of ceramic waste, binder and water in a weight ratio of (85-93) to (5-10) to (2-5).

5. The granite ceramic water permeable brick of claim 1, wherein the ceramic waste of the facing material has a particle size of 20-40 mesh.

6. The granite porcelain water permeable brick of claim 1, wherein the washed sodalite grains are composed of 32-55 wt% of washed sodalite grains of 10-20 meshes, 28-43 wt% of washed sodalite grains of 20-30 meshes, and 2-40 wt% of washed sodalite grains of 30-40 meshes.

7. The granite ceramic water permeable tile of claim 1, wherein the colorants are orange red and pure yellow.

8. A method for preparing granite ceramic water permeable bricks according to any of claims 1 to 7, comprising the following steps:

1) grinding and grading of the base material: grinding and grading the ceramic waste of the backing material, and adding the graded ceramic waste, water and a binder into a stirrer to obtain a backing material mixture;

2) mixing the fabrics for the first time: sequentially adding 40-75% of water-washed sodalite particles, ceramic waste, water, a binder, a fluxing agent, aluminum powder and a pigment into a stirrer, and uniformly stirring;

3) and (3) mixing the fabrics again: adding the balance of the formula of the washed sodalite particles into the mixture obtained in the step 2), adding black sand, and uniformly mixing to obtain a fabric mixture;

4) molding: laying a base material mixture to form a substrate of 40-70mm, laying a surface material mixture to form a surface layer of 15-30mm, and performing compression molding;

5) and (3) firing: sintering in a kiln at 1100-1200 ℃.

9. The preparation method of claim 8, wherein in the step 1), the ceramic waste is ground and then sequentially screened through a 6-mesh screen, a 10-mesh screen, a 16-mesh screen and a 30-mesh screen, and the screened components are respectively (3-4): (4-5): 1: 1-3 weight ratio grading; in the step 2), after the washed sodalite particles are ground, the washed sodalite particles are sequentially screened by a 10-mesh sieve, a 20-mesh sieve, a 30-mesh sieve and a 40-mesh sieve, and the screened components are respectively (32-35): (28-43): (20-35) grading by weight ratio.

10. The method as set forth in claim 8, wherein in the step 4), the molding pressure is 9000-12000 KN.

Technical Field

The invention relates to the technical field of building materials, in particular to a granite porcelain water permeable brick and a preparation method thereof.

Background

The permeable bricks are laid on sidewalks, parking lots and urban squares, so that rainwater can rapidly permeate into the ground, urban drainage and flood control pressure can be relieved, soil water and underground water can be supplemented, soil humidity is kept, urban microclimate is improved, urban heat island effect is relieved, and the permeable bricks have a good effect on building 'sponge cities'.

The water permeable bricks on the market at present are mainly divided into the following categories:

1) common water permeable bricks: the porous concrete material made of common macadam is pressed and formed, is used for pedestrian footpaths and squares in common blocks, and is a product for general pavement;

2) polymer fiber concrete permeable brick: the material is granite aggregate, high-strength cement and cement polymer reinforcing agent, polypropylene fiber is blended, the feeding proportion is tight, and the mixture is pressed and formed after being stirred, so that the material is mainly used for paving places such as sidewalks, squares, parking lots and the like of municipal works, important projects and residential districts;

3) the color stone composite concrete permeable brick comprises the following steps: the surface layer of the product is natural colored granite, marble and modified epoxy resin are glued, and then the product is pressed and compounded with polymer fiber porous concrete of the bottom layer to form, the surface layer of the product is beautiful, natural color and has the same texture as stone, after the product is compounded with the concrete, the strength is higher than that of the stone, the cost is slightly higher than that of a concrete permeable brick, the price is 1/2 of stone floor tiles, and the product is an economic and high-grade floor paving product;

4) colored stone epoxy through body permeable brick: the aggregate is natural color stone glued with imported modified epoxy resin, and is formed by special process, the product can be prefabricated, can be cast on site, and can be spliced into various artistic patterns and color lines, thereby providing a pleasant feeling for people. The method is mainly used for landscape engineering and high-grade villa districts;

5) concrete permeable brick: the material is river sand, cement, water, and then a certain proportion of water-permeable agent is added to prepare the concrete product. Compared with resin water permeable bricks, ceramic water permeable bricks and gap water permeable bricks, the product has the advantages of low production cost, simple manufacturing process and easy operation. The method is widely applied to the fields of highways, airport runways, driveways, pedestrian ways, squares, garden buildings and the like.

With the development of society, especially the rapid development of architectural ceramic industry, people have gradually improved the appearance requirement of water permeable brick, and the problem of how to make granite porcelain water permeable brick with uniform color is still solved while parameters such as water permeability, breaking strength and the like are ensured.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a granite ceramic water permeable brick imitating natural granite. The granite ceramic water permeable brick consists of a bottom material taking ceramic waste as a base material and a fabric taking washed sodalite particles and ceramic waste as main base materials, wherein the surface layer of the water permeable brick has better appearance and texture similar to natural granite, the material of the surface layer is easy to disperse, and the obtained water permeable brick has better appearance uniformity and small color difference; the bottom layer can provide better water permeability and strength support, and the water permeable brick has better water permeability and strength and better anti-skid performance.

The other purpose of the invention is to provide a preparation method of the granite ceramic water-permeable brick, which adopts a secondary material mixing mode for the fabric, so that the mixing uniformity of the fabric is better.

One of the purposes of the invention is realized by adopting the following technical scheme:

a granite porcelain water permeable brick comprises a backing material and a fabric, wherein the backing material is prepared from ceramic waste, a binder and water; the fabric is prepared from the following components in parts by weight: 40-80 parts of washed sodalite particles, 17-22 parts of ceramic waste, 6-9 parts of binder, 2-5 parts of fluxing agent, 0.6-3 parts of aluminum powder, 0.4-3 parts of pigment, 1-6 parts of black sand and 3-5 parts of water; the content of silicon dioxide in the washed sodalite particles is more than 70 percent; the ceramic waste of the bottom material is formed by screening and grading ceramic waste with more than 6-30 meshes, and the washed sodalite grains of the surface material are formed by screening and grading washed sodalite grains with 10-40 meshes.

Further, the ceramic waste of the base material consists of 15-53 parts of ceramic waste with 6-10 meshes, 25-40 parts of ceramic waste with 10-16 meshes, 5-10 parts of ceramic waste with 16-30 meshes and 10-20 parts of ceramic waste with more than 30 meshes. The graded ceramic waste is used as a base material of a backing material, so that better support and water permeable core materials can be provided for the water permeable brick.

Further, the binder is a silicate-based inorganic binder. The viscosity of the inorganic binder is required to be 0.8-1.0Pa.s when the viscosity value is measured by adding two times of water, and the granularity is required to be less than 200 meshes.

Further, the base material consists of ceramic waste, a binder and water according to the weight ratio of (85-93) to (5-10) to (2-5).

Further, the grain size of the ceramic waste of the fabric is 20-40 meshes. Ceramic waste in the fabric is used as strength support, and forms a water permeable channel and a pressure bearing support together with washed sodalite particles and the like.

In the step, the particle size of the washed sodalite particles is 10-40 meshes. The washed sodalite particles consist of 32-55 wt% of washed sodalite particles with 10-20 meshes, 28-43 wt% of washed sodalite particles with 20-30 meshes and 2-40 wt% of washed sodalite particles with 30-40 meshes; the washed sodalite grains are used as a simulated object of granite and can be matched with ceramic waste to form a water permeable channel and a pressure bearing support.

Further, the colorant is orange and pure yellow. Or may further include antimony tin ash, extra black pigment and cobalt.

The second purpose of the invention is realized by adopting the following technical scheme:

the preparation method of the granite ceramic water permeable brick comprises the following steps:

1) grinding and grading of the base material: grinding and grading the ceramic waste of the backing material, and adding the graded ceramic waste, water and a binder into a stirrer to obtain a backing material mixture;

2) mixing the fabrics for the first time: sequentially adding 40-75% of water-washed sodalite particles, ceramic waste, water, a binder, a fluxing agent, aluminum powder and a pigment into a stirrer, and uniformly stirring;

3) and (3) mixing the fabrics again: adding the balance of the formula of the washed sodalite particles into the mixture obtained in the step 2), adding black sand, and uniformly mixing to obtain a fabric mixture;

4) molding: laying a base material mixture to form a substrate of 40-70mm, laying a surface material mixture to form a surface layer of 15-30mm, and performing compression molding;

5) and (3) firing: sintering in a kiln at 1100-1200 ℃.

Further, in the step 1), after the ceramic waste is ground, the ceramic waste is sequentially screened by a 6-mesh sieve, a 10-mesh sieve, a 16-mesh sieve and a 30-mesh sieve, and the screened components are respectively (3-4): (4-5): 1: 1-3 weight ratio grading; in the step 2), after the washed sodalite particles are ground, the washed sodalite particles are sequentially screened by a 10-mesh sieve, a 20-mesh sieve, a 30-mesh sieve and a 40-mesh sieve, and the screened components are respectively (32-35): (28-43): (20-35) grading by weight ratio.

Further, in step 4), the molding pressure is 9000-12000 KN.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a granite ceramic water permeable brick, which utilizes washed sodalite particles and ceramic waste materials which have better similarity with natural granite as a base material of a fabric, so that the surface layer has better strength, water permeability and skid resistance, and uses the ceramic waste materials as a base material of the water permeable brick, so that the water permeable brick has better ground gripping fastness, water permeability and strength support;

the invention provides a preparation method of granite ceramic water permeable bricks, which comprises the steps of screening and grading a base material and mixing a fabric by adopting a secondary mixing method.

Drawings

FIG. 1 is a diagram of a finished granite ceramic water-permeable brick obtained in example 6.

Detailed Description

The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the present invention, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment without conflict.

The following are specific examples of the present invention, and raw materials, equipments and the like used in the following examples can be obtained by purchasing them unless otherwise specified.

The invention provides a granite porcelain water permeable brick which comprises a backing material and a fabric, wherein the backing material is prepared from ceramic waste, a binder and water; the fabric is prepared from the following components in parts by weight: 40-80 parts of washed sodalite particles, 17-22 parts of ceramic waste, 6-9 parts of binder, 2-5 parts of fluxing agent, 0.6-3 parts of aluminum powder, 0.4-3 parts of pigment, 1-6 parts of black sand and 3-5 parts of water; the content of silicon dioxide in the washed sodalite particles is more than 70 percent; the ceramic waste of the bottom material is formed by screening and grading ceramic waste with more than 6-30 meshes, and the washed sodalite grains of the surface material are formed by screening and grading washed sodalite grains with 10-40 meshes.

This application uses ceramic waste as the base material of bed charge promptly, provides the intensity and supports and the matrix that permeates water, and the surface grain adopts washing sodium stone grain and ceramic waste as the base material, on the basis of providing simulation granite outward appearance and texture, still has the surface course coefficient of permeability and intensity of preferred.

The fluxing agent in the application is a silicon-rich fluxing agent, wherein the content of silicon dioxide exceeds 50 wt%, and the silicon dioxide can be selected from products of quartz slag, metallurgical slag and tailings, and preferably, the melting temperature of the fluxing agent is 900-1000 ℃; the flux used in the present application comprises 53% silica, 17% alumina, 7.7% ferric oxide, 5.50% calcium oxide, 5.4% magnesium oxide, 4.1% potassium oxide, 3.3% sodium oxide, 2.3% titanium dioxide, 1.1% diboron trioxide and the balance unavoidable impurities, with a burn reduction < 0.05%.

The washed sodalite granule that uses in this application is rich silicon class washed sodalite granule, and its composition contains: 77.6 percent of silicon dioxide, 13.6 percent of aluminum oxide, 7 percent of sodium oxide, 0.55 percent of magnesium oxide, 0.29 percent of calcium oxide and the balance of inevitable impurities, and the ignition loss is less than 0.5 percent.

The adhesive used in the application is silicate inorganic adhesive, and the viscosity value measured by adding two times of water is 0.8-1.0 Pa.s; the particle size is below 200 meshes.