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Building external wall thermal insulation foamed ceramic material and production method thereof

A technology of foam ceramics and building exterior walls, applied in the field of building materials, can solve the problems of high price, serious environmental pollution, and low reprocessing utilization rate, and achieve the effects of low cost, environmental protection, and favorable waste utilization

Inactive Publication Date: 2012-07-18
ZHONGCAI HIGH NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For Class A non-combustible inorganic thermal insulation materials, there is a problem of high price
[0003] On the other hand, the industrial solid waste produced in my country every year amounts to more than one billion tons, and the reprocessing utilization rate is low, which seriously pollutes the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] After mixing 60kg of metal tailings, 20kg of coal gangue, 15kg of albite feldspar and 5kg of silicon carbide powder, dry grind until the particle size of the powder is D90<10μm, and fill the ground material into a recrystallized silicon carbide mold. It is 1 / 2 of the capacity of the mold, and then the mold filled with materials is sent into the kiln, and the temperature is raised to 1170°C at a rate of 2.5°C / min, the holding time is 1h, and then cooled to room temperature with the furnace, after cutting and inspection, the conformity is obtained. Ceramic foam materials required for building exterior wall insulation.

[0025] The relevant performance test results of the obtained product are: bulk density 0.38g / cm 3 , compressive strength 2.8Mpa, thermal conductivity 0.06W / m·K.

Embodiment 2

[0027] After mixing 56kg of coal gangue, 20kg of polishing waste, 20kg of waste glass from bottles and cans and 4kg of silicon carbide, dry grind until the particle size of the powder is D90<10μm, and fill the grinding material into a recrystallized silicon carbide mold with a filling amount of 1 / 3 of the capacity, then send the mold filled with materials into the kiln, raise the temperature to 1190 °C at a rate of 2 °C / min, hold for 2 hours, and then cool to room temperature with the furnace, after cutting and inspection, it can meet the requirements of the building exterior. Ceramic foam material for wall insulation requirements.

[0028] The relevant performance test results of the obtained product are: bulk density 0.34g / cm 3 , compressive strength 2.2Mpa, thermal conductivity 0.05W / m·K.

Embodiment 3

[0030] After mixing 35kg of metal tailings, 36kg of polishing waste, 25kg of albite and 4kg of silicon carbide, dry-grind until the particle size of the powder is less than 10 μm, and fill the grinding material into a recrystallized silicon carbide mold, the filling amount is 1 / 2 of the mold capacity 5 / 12, then send the mold filled with materials into the kiln, raise the temperature to 1130°C at a rate of 3°C / min, hold for 1.5h, and then cool down to room temperature with the furnace, after cutting and inspection, it can meet the requirements of building exterior walls. Ceramic foam material for thermal insulation requirements.

[0031] The relevant performance test results of the obtained product are: bulk density 0.36g / cm 3 , compressive strength 2.6Mpa, thermal conductivity 0.06W / m·K.

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Abstract

The invention belongs to the field of building materials, and in particular relates to a building external wall thermal insulation foamed ceramic material and a production method thereof. The building external wall thermal insulation foamed ceramic material is prepared from the following raw materials in part by weight: 60 to 80 parts of industrial solid waste, 15 to 35 parts of fluxing material and 2 to 5 parts of foaming agent, wherein the industrial solid waste is a mixture of two or three of coal gangue, metal tailing and polishing waste in any ratio; the fluxing material is one or a mixture of two of albite and bottle waste glass in any ratio; and the foaming agent is silicon carbide powder. The method comprises the following steps of: mixing the raw materials, grinding, filling in a recrystallized silicon carbide die, feeding into a kiln, firing, naturally cooling, cutting, and inspecting to obtain the foamed ceramic material which meets the building external wall thermal insulation requirement. The building external wall thermal insulation foamed ceramic material has the characteristics of A-level non-inflammability, high thermal insulation and heat preservation performance, energy conservation, environment friendliness and low cost.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a thermal insulation foam ceramic material for building exterior walls and a production method thereof. Background technique [0002] External thermal insulation of building exterior walls is an important part of building energy saving, which can account for 30%-40% of building energy saving. It is realized by putting a thermal insulation coat on the building. Therefore, the development of external insulation materials for exterior walls is also an important link in building energy-saving technology. At present, the mainstream products of external wall insulation materials in China are organic insulation materials such as polystyrene foam board and polystyrene extruded board. The advantages of these organic insulation materials are excellent insulation performance and low price, but there are also fatal flaws, namely They are all combustible materials and pose a fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02B09B3/00
Inventor 吕宝伟赵小玻陈达谦徐先豹刘鹏王玉宝鲍晓芸王振环张飞飞
Owner ZHONGCAI HIGH NEW MATERIAL
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