Method for preparing lightweight aggregate and inorganic insulation using product thereon as main insulation source

A technology of inorganic thermal insulation materials and lightweight aggregates, applied in the field of building thermal insulation materials, can solve the problems of poor thermal insulation performance and high water absorption rate, and achieve the effect of compact structure, small diameter and compensation for material shrinkage

Inactive Publication Date: 2009-02-04
北京北科华电科技股份有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of this, the inventor has conducted many researches and tests, and has focused on the problems of high water absorption and poor thermal insulation performance of inorganic thermal insulati

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: (the preparation method of light aggregate)

[0065] The preparation method of light aggregate comprises the steps of:

[0066] (1) Pulverize the acidic vitreous turpentine with a silica content of more than 70%, and pass through a 0.3mm sieve to obtain particles with a particle size ranging from 0.3mm to 0.075mm. Take 1000 parts of the obtained particles and add them to a multi-stage silicon carbide heating tube In the type vitrification furnace, it is softened and melted at 500°C, and then the pyrolysis gas-generating material is added with a mass ratio of 1:1. Spherical particles with a porous cavity and a glassy thin shell on the surface, that is, coarse light aggregate;

[0067] (2) Surface treatment of coarse light aggregate

[0068] Take 500 parts of liquid organosilicon saturated solution, evenly spray on the surface of the crude light aggregate obtained in step (1), and dry at 100°C until constant weight; then take 300 parts of aluminate saturat...

Embodiment 2

[0069] Embodiment 2 (embodiment 2-5 is a kind of preparation method of inorganic thermal insulation material)

[0070] Take 1000 parts of light aggregate prepared according to the method in Example 1, 600 parts of cement, 60 parts of sulphoaluminate expansion agent, 6 parts of polypropylene short fiber, 340 parts of light powder-diatomaceous earth, redispersible 30 parts of latex powder, 1 part of calcium formate, and 0.5 parts of cellulose are uniformly mixed in a mixer, and the obtained is dry powder inorganic insulation material;

[0071] During construction, take 1000 parts of dry powder inorganic thermal insulation materials, add 900 parts of water and stir in a forced mixer to obtain slurry thermal insulation materials that can be used for construction.

Embodiment 3

[0073] Get 800 parts of light aggregates prepared according to the method in Example 1, 400 parts of cement, 50 parts of sulphoaluminate expansion agent, 4 parts of polypropylene short fibers, 80 parts of diatomite, 80 parts of attapulgite clay, silicon 390 parts of ash, 50 parts of redispersible latex powder, 1.6 parts of calcium formate, and 0.8 parts of cellulose are uniformly mixed in a mixer, and the obtained is a dry powder inorganic thermal insulation material;

[0074] During construction, take 1000 parts of dry powder inorganic thermal insulation materials, add 900 parts of water and stir in a forced mixer to obtain slurry thermal insulation materials that can be used for construction.

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PUM

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Abstract

The invention relates to a preparation method of lightweight aggregate and an inorganic heat insulation material which takes the product thereof as a main heat insulation source. The lightweight aggregate is prepared by two surface treatments after the sudden cooling after the high-temperature melting by pitchstone and the introduction of gasification materials, the water absorption is low and the adhesion is good. The inorganic heat insulation material takes the obtained lightweight aggregate with the excellent performances as the main heat insulation sources and takes cement as an adhesive material, lightweight powder, expansion agent, acrylic short fiber, re-dispersible emulsion powder, cellulose and calcium formate are further added to adjust the mechanical and the construction performances of the heat insulation material. The prepared inorganic heat insulation material has excellent heat insulation, fire resistance, durability, long service life, environmental protection, energy conservation, material economy and better social and economic values.

Description

technical field [0001] The invention relates to a building thermal insulation material, in particular to a preparation method of an inorganic light aggregate and an inorganic thermal insulation material whose product is the main thermal insulation source. Background technique [0002] At present, thermal insulation materials are mainly divided into organic thermal insulation materials and inorganic thermal insulation materials. [0003] The outstanding advantage of organic thermal insulation materials is that they have very good thermal insulation properties. However, its fire resistance is poor during use, it is easy to catch fire, and there are great safety hazards; at the same time, the durability of organic thermal insulation materials is poor, and the service life is short. Environmental friendly. Therefore, polystyrene board insulation materials have been included in the restricted use list by many countries or regions. [0004] Inorganic thermal insulation material...

Claims

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Application Information

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IPC IPC(8): C04B14/04C04B20/04C04B20/10C04B28/00C04B16/06
Inventor 王栋民扈士凯罗小红刘晓斌惠飞曲志勇王莉民
Owner 北京北科华电科技股份有限公司
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