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Color ceramic aggregate and its preparation method and application

A ceramic aggregate and color technology, applied in the field of color ceramic aggregate and its preparation, can solve the problems of substandard Mohs strength, shortened service life, particle crushing, etc., and achieve the effects of not easy to fade, improve strength, and high production efficiency

Active Publication Date: 2020-09-29
HANDAN SHENGHUO CERAMIC PROPPANT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its temperature is too low, resulting in the Mohs strength of the finished product is not up to standard
Under the rolling of heavy-duty vehicles such as vehicles, the particles are easily crushed, resulting in a greatly shortened service life

Method used

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  • Color ceramic aggregate and its preparation method and application
  • Color ceramic aggregate and its preparation method and application

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Experimental program
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preparation example Construction

[0050] According to a second aspect of the present invention, a method for preparing the above-mentioned colored ceramic aggregate is provided, comprising the following steps:

[0051] According to the formula quantity, the coloring material is evenly mixed with pulverized kaolin, coal ash waste and bauxite, then calcined at 1150-1300 DEG C, and the colored ceramic aggregate is obtained after cooling.

[0052] Calcination is an important process of material preparation, and the calcination process directly affects the microstructure of the calcined compact, such as grain size and distribution, pore size and distribution, and grain boundary volume fraction. Calcination is a general term for the densification process and phenomenon of materials at high temperatures. With the increase of temperature and the extension of time, solid particles are bonded to each other, grains grow, and voids (pores) and grain boundaries gradually decrease. During the calcination process, through th...

Embodiment 1

[0081] A colored ceramic aggregate is prepared from the following raw materials by weight percentage: 20% of kaolin, 30% of coal ash waste, 49.5% of bauxite and 0.5% of green pigment.

[0082] The preparation method of ceramic aggregate comprises the following steps:

[0083] (1) pulverizing kaolin, coal ash waste and bauxite;

[0084] (2) mix the green colorant with pulverized kaolin, coal ash waste and alcolite according to the formula to obtain material A;

[0085] (3) After grinding the material A to a fineness of 400 meshes, carry out stale homogenization. During the stale homogenization, the moisture content of the material was kept at 16%, and the stale homogenization time was 48 hours to obtain material B;

[0086] (4) The material B is made into a green body, dried and crushed into particles with a particle size of 5 mm, calcined at 1200° C. for 16 hours, and cooled;

[0087] (5) Sieve the cooled material to the required particle size to obtain green ceramic aggrega...

Embodiment 2

[0089] A colored ceramic aggregate is prepared from the following raw materials by weight percentage: 49% of kaolin, 20% of coal ash waste, 28.5% of bauxite and 2.5% of blue pigment.

[0090] The preparation method of ceramic aggregate comprises the following steps:

[0091] (1) pulverizing kaolin, coal ash waste and bauxite;

[0092] (2) Mix the blue colorant with pulverized kaolin, coal ash waste and white alcol according to the formula to obtain material A;

[0093] (3) After grinding the material A to a fineness of 400 meshes, carry out stale homogenization. During the stale homogenization, the moisture content of the material was kept at 14%, and the stale homogenization time was 72 hours to obtain material B;

[0094] (4) Making the material B into a green body, crushing it into particles with a particle diameter of 4mm after drying, calcining at 1250° C. for 10 hours, and cooling;

[0095] (5) Sieve the cooled material to the required particle size to obtain blue cera...

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Abstract

The invention discloses a color ceramic aggregate and a preparation method and application thereof, and relates to the technical field of paving materials. The color ceramic aggregate is mainly prepared from, by weight, 20-49% of kaolin, 20-30% of coal ash waste, 30-55% of Baicuo clay and 0.5-2.5% of pigment. The preparation method comprises the step that the pigment, the smashed kaolin, the coalash waste and the Baicuo clay are mixed to be uniform according to the formula ratio, then calcined under the temperature of 1,150-1,300 DEG C and cooled. The defects that the aggregate obtained by anexisting surface coating mode is likely to fade due to friction, and the strength of the aggregate adopting waste glass powder as the body cannot meet the requirement are overcome. On the condition that the content of oxide is ensured, the aluminum content is increased, the raw materials and the pigment are mixed to be uniform and then are subjected to high-temperature calcination, the obtained color ceramic aggregate is bright in color and high in strength, the aggregate is not likely to fade after friction, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of pavement materials, in particular to a colored ceramic aggregate and its preparation method and application. Background technique [0002] In the application of urban construction, the traditional urban road design and paving technology can no longer meet the requirements of modern urban construction. Strengthen the recognizability of the road surface through special colors, textures and configurations, divide traffic sections of different natures, induce and reveal traffic, effectively limit the speed of vehicles, strengthen the blocking between people and vehicles, and give people directions sense and orientation, etc., thereby further improving the safety performance of urban road traffic. [0003] Colored ceramic aggregate particles are used as a material for pavement paving, which makes the pavement beautiful and increases the recognizability of the pavement. With the application of sustainable dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132C04B33/14C04B33/04
CPCC04B33/04C04B33/1352C04B33/14C04B2235/3217C04B2235/3463C04B2235/96C04B2235/9661Y02P40/60
Inventor 王景硕安丽丽
Owner HANDAN SHENGHUO CERAMIC PROPPANT CO LTD
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