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A kind of anti-sag lightweight gypsum for ceiling and preparation method thereof

A sag-resistant and lightweight technology, applied in the field of building thermal insulation materials, can solve the problems of initial viscosity and workability, easy sag in ceiling construction, poor thermal insulation performance, etc. The effect of improving adhesion

Active Publication Date: 2021-09-28
CHONGQING JIANDA BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are several key problems in the use of lightweight gypsum for the ceiling. First, the ceiling construction is easy to hang. Since it is used for the ceiling, it is under the structural slab, and the effect of gravity is particularly significant.
The second is the contradiction between initial viscosity and workability. Generally speaking, the better the initial viscosity, the worse the workability, especially the shorter the operability time.
The third is the contradiction between bond strength and density. Generally speaking, the higher the bond strength, the greater the density, so the greater the thermal conductivity, the worse the thermal insulation performance

Method used

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  • A kind of anti-sag lightweight gypsum for ceiling and preparation method thereof
  • A kind of anti-sag lightweight gypsum for ceiling and preparation method thereof
  • A kind of anti-sag lightweight gypsum for ceiling and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A ceiling of anti-flow in a ceiling, a lightweight gypsum, the raw material used and its quality is as follows:

[0027]

[0028] in:

[0029] The construction plasma particle diameter is less than 80 μm, and the mass of <15 μm is 40 kg, and the particle size is distributed at a mass of 35 kg, and the particle size distribution is from 45 μm to 80 μm, and the particle size is distributed in <15 μm. The mass ratio of the three intervals of 15 μm to 45 μm and 45 μm to 80 μm is 40:35:25, respectively;

[0030] The particle size of the glass is 80 μm to 250 μm, and the particle size is distributed at a mass of 80 μm to 180 μm, and the mass of the particle size is from 180 μm to 250 μm. The mass proportion of the two intervals is 16: 9, respectively. ;

[0031] Water uses ordinary tap water;

[0032] The anti-flow hanging reactant is 6650R high-performance amide wax fine powder;

[0033] The adhesive is a vinyl acetate-ethylene copolymer can be scattered latex powder; white po...

Embodiment 2

[0039] A ceiling of anti-flow in a ceiling, a lightweight gypsum, the raw material used and its quality is as follows:

[0040]

[0041] The specifications and preparation methods of the above raw materials are the same as those in Example 1.

Embodiment 3

[0043] A ceiling of anti-flow in a ceiling, a lightweight gypsum, the raw material used and its quality is as follows:

[0044]

[0045] The specifications and preparation methods of the above raw materials are the same as those in Example 1.

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Abstract

The invention relates to an anti-sagging lightweight gypsum for ceilings. The raw materials of the light gypsum include the following components in parts by mass: 100 parts of building gypsum, 25-35 parts of vitrified microbeads, and 75-85 parts of water 0.2-0.5 parts of thixotropic agent, 0.2-0.6 parts of adhesive, 0.2-0.5 parts of water-retaining agent, 0.3-0.9 parts of water-reducing agent, and 0.2-0.5 parts of retarder. The present invention adopts the light gypsum prepared by composite methods such as overall particle gradation optimization and the appropriate ratio of external additives, etc., to solve the related problems in the construction process of the thermal insulation on the household floor slabs, and to obtain anti-sagging and high Lightweight gypsum with adhesive strength is very suitable for roof construction, and because it has excellent thermal insulation at the same time, it can greatly reduce the energy consumption of building operation and can be applied in industrial production.

Description

Technical field [0001] The present invention belongs to the technical field of building insulation materials, involving a ceiling of anti-flow lane light gypsum and preparation methods thereof, more involved in anti-flowing light gypsum of the ceiling. Background technique [0002] With the deepening of energy-saving buildings, the depository must take insulation measures to meet the basic threshold requirements of 65% of building energy conservation. At present, the material of the fixed-house floor insulation layer has inorganic insulation mortar, polyphenylene granule thermos, foam concrete, benzene sheet, composite silicate plate, all light concrete. These insulation layer materials are used above the settlement floor structure, so they are required to reach a certain compressive strength. However, the first five material insulation layer is low, requiring a layer of anti-crack layer (varying resistance glass fiber mesh or wire mesh) and protective layer (usually fine stone c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B111/40
CPCC04B28/14C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B18/027C04B24/287C04B24/2623C04B24/383C04B24/223C04B24/06C04B24/14
Inventor 彭家惠刘先锋张建新朱聪瞿金东曹文湘
Owner CHONGQING JIANDA BUILDING MATERIAL
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