High-strength heat-insulation composite brick

A composite brick, high-strength technology, applied in the direction of sustainable waste treatment, solid waste management, application, etc., can solve the problem of insufficient strength of thermal insulation composite bricks, and achieve the effect of reducing labor input, light weight, and good sound insulation effect.

Inactive Publication Date: 2014-12-10
江西省石湾环球陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of insufficient strength of existing heat-insulating composite bricks, and provide a high-strength heat-insulating composite brick with high strength, excellent heat insulation effect, good sound insulation effect and light weight

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] High-strength heat-insulating composite brick, consisting of the following steps:

[0022] (1) First mix 45wt% kaolin, 25wt% Al 2 o 3 17wt% fly ash and 2wt% silicon dioxide micropowder are mixed with water evenly, and kept at 1500-1700°C for 1-3 hours;

[0023] (2) After lowering the temperature to 600-700°C, add 5wt% calcium aluminate cement, 4wt% asbestos fiber and 2wt% foaming agent, stir evenly with a mixer, pour the mixture into the mold, and then Insulate at 900-1000°C for 3-5 hours;

[0024] (3) After the heat preservation is completed, maintain at room temperature for 24-48 hours, take the semi-finished brick out of the mold, and then dry it at 100-120°C for 20-36 hours; finally, keep it at 1400-1550°C for 3-5 hours to obtain finished product;

[0025] The particle size of the kaolin is less than 2mm, Al 2 o 3 The particle size of the silica powder is 0.5-2 mm, the particle size of the silica powder is less than 0.2 μm, and the length of the asbestos fiber...

Embodiment 2

[0029] The difference between this embodiment and embodiment 1 is that the content of each component is different, and its weight percentage of concrete each component is as follows:

[0030] The kaolin is 37.5wt%, calcium aluminate cement is 10wt%, asbestos fiber is 6wt%, Al 2 o 3 23wt%, fly ash 22wt%, silica powder 0.5wt%, blowing agent 1wt%.

[0031] In this embodiment, the foaming agent in the step (2) is selected as magnesium carbonate, and the length of the asbestos fiber is 2-6 mm.

[0032] After testing, the weight of the product in this embodiment is 1643kg / m 3 , the compressive strength is 18Mpa, and the thermal conductivity is 0.09w / (m·k).

Embodiment 3

[0034] The difference between this embodiment and embodiment 1 is that the content of each component is different, and its weight percentage of concrete each component is as follows:

[0035] The kaolin is 30wt%, calcium aluminate cement is 15wt%, asbestos fiber is 8wt%, Al 2 o 3 20wt%, fly ash 25wt%, silica powder 0.5wt%, blowing agent 1.5wt%.

[0036] In this embodiment, the foaming agent in the step (2) is selected to be silicon carbide, and the length of the asbestos fibers is selected to be 0.5-4 mm.

[0037] After testing, the weight of the product in this embodiment is 1513kg / m 3 , the compressive strength is 17Mpa, and the thermal conductivity is 0.08w / (m·k).

[0038] It can be seen through testing that the intermediate temperature insulation effect of the present invention is extremely high, and its strength is far higher than the compressive strength of ordinary bricks.

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Abstract

The invention discloses a high-strength heat-insulation composite brick mainly used for solving the problem of low strength of the traditional heat-insulation composite brick. The high-strength heat-insulation composite brick comprises the following components in percentage by weight: 30-45wt% of kaolin, 5-15wt% of calcium aluminate cement, 4-8wt% asbestos fiber, 20-25% of Al2O3, 15-25wt% of coal ash, 0.5-2wt% of silicon dioxide micropowder and 1-2wt% of foaming agent, wherein the particle size of the kaolin is smaller than 2mm, the particle size of Al2O3 is 0.5-2mm, the particle size of the silicon dioxide micropowder is smaller than 0.2mu m, and the length of the asbestos fiber is 0.5-10mm. The high-strength heat-insulation composite brick has the advantages of high compression strength, light weight, excellent heat insulation effect and the like.

Description

[0001] technical field [0002] The invention relates to a heat-insulating composite brick, in particular to a high-strength heat-insulating composite brick. Background technique [0003] The existing heat-insulating composite bricks have improved the defects of ceramic facing bricks and artificial (natural) stone slabs. The existing heat-insulating composite bricks are composed of a surface layer and a bottom layer. The surface layer can be at least ceramic wear-resistant bricks and ceramic wear-resistant anti-skid bricks. , antique ceramic tiles and other ceramic tiles or artificial (natural) stone slabs that have been cut, the bottom layer can be at least organic foam board, inorganic microporous foam board as heat insulation and sound insulation layer, providing a wear-resistant, anti-corrosion , waterproof, beautiful, heat preservation, heat insulation, sound insulation ceramic foam board facing brick. [0004] As long as the tiles are laid on the floor level, the nois...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B38/02C04B14/40C04B18/08C04B14/10
CPCY02W30/91
Inventor 曾德明
Owner 江西省石湾环球陶瓷有限公司
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