Light floamed ceramic building board and preparation thereof

A technology of building board and lightweight foam, applied in ceramic products, other household appliances, applications, etc., can solve the problems of high density of ceramic tiles and single use, and achieve the effect of reducing the cost of raw materials

Inactive Publication Date: 2009-05-20
RUIJING INVESTMENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses a large amount of fly ash as a raw material, and the raw materi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The mass percentages of fly ash, china clay, foaming material, feldspar and lepidolite in the raw materials are 50%, 40%, 7%, 2% and 1%, of which the foaming material contains 60% of perlite, vermiculite 30%. The raw material is made into 60-mesh powder with a water content of 6.5%. Press into a green body with 55Mpa, dry at 110°C for 10 hours, and the moisture content is 2.0%. Calcined in a gas furnace, the temperature was raised to 1160°C (±10°C) within 12 hours. Under the simultaneous action of a large amount of gas, expansion, and molten glass phase during calcination, an independent closed tough glass fiber foam with uniform and dense distribution is formed. The overall porcelain product obtained after annealing and cooling has a density of 650kg / m at room temperature 3 , the compressive strength is greater than 18MPa, the bending strength is greater than 5.2MPa, can be sawed and fixed screws, and can be used as a light wall and other purposes.

Embodiment 2

[0040] Billet formula and manufacturing process are the same as embodiment 1. Calcined in a microwave oven, the temperature rises to 1300°C (±10°C) within 2.5 hours. The pores of the product are obviously enlarged, and the density at room temperature is 200kg / m 3 , the compressive strength is greater than 6MPa, and the bending strength is greater than 1MPa. It can be sawed and fixed with screws, and can be used as floating and sound insulation materials.

Embodiment 3

[0042] The mass percentages of fly ash, china clay, foaming material and feldspar in the raw materials are 60%, 30%, 5% and 5%, wherein the foaming material contains 60% of perlite and 30% of vermiculite. The raw material adopts powder processing technology to make 20-mesh powder with 6.0% water content. Press into a green body with 55Mpa, dry at 110°C for 11 hours, and the moisture content is 2.0%. Calcined in a gas furnace, the temperature was raised to 1170°C (±10°C) within 12 hours. After cooling, a vitrified product with obviously fine bubbles is obtained, and the density at room temperature is 800kg / m 3 , the compressive strength is greater than 19MPa, the bending strength is greater than 8MPa, it can be sawed and fixed with screws, and can be used as a thermal insulation floor.

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Abstract

The invention belongs to the technical field of construction materials and discloses a light foamed ceramic construction board and a production method thereof. The light foamed ceramic construction board comprises the following components according to weight percentage: fly ash: 40 to 60 percent, porcelain clay: 30 to 50 percent, expanded material: 5 to 10 percent, rhombic quartz: 0 to 5 percent, and lepidolite stone: 0 to 1 percent; the board is prepared by carrying out the following procedures to the components: crashing, prilling, pressing and moulding and calcining. The ceramic construction board takes a great amount of the fly ash as raw materials which is low in cost; in the preparation process, the raw material is finely ground and all the components are mixed evenly; then the expanding foam matrix structure is reformed by the technique of prilling with power, thus causing the product to form foam and raise toughness degree; the finished board has ceramic foam structure which is formed by even, independent and closed small holes; the size of the small holes and the density of the product can be adjusted according to special application purpose; and the board can be used in walls and grounds for noise insulation, fire proof and flotation, and the like. The finished products can be cut and processed by a saw and can be taken as a substitute of wood plates.

Description

technical field [0001] The invention relates to a novel building material and a preparation method thereof, in particular to a lightweight foamed ceramic building plate and a preparation method thereof. Background technique [0002] Fly ash is a clay-like pozzolanic powder emitted from coal combustion, which is produced in large quantities by coal power plants and can be added in small quantities as raw materials for tiles. The invention patent with authorized notification number CN 1182067C discloses a high-volume fly ash porcelain brick and its preparation method, using 60-70% fly ash, 25-40% ultra-fine china clay and 0-10% Feldspar tiles. This method adopts fly ash in large quantities as raw material, and the raw material cost is low, but the tile density of making is big, and purpose is single. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a porcelain plate with a large amount of f...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B38/00C04B18/08C04B14/04
CPCC04B2111/28C04B2111/52C04B38/02C04B2111/60
Inventor 施纯伟
Owner RUIJING INVESTMENT HLDG
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