A kind of light-weight and high-strength exterior wall interior thermal insulation gypsum and preparation method thereof

A high-strength, external wall technology, applied in the field of building insulation materials, can solve the problems of the contradiction between the strength and density of thermal insulation gypsum in the external wall, the contradiction between thermal insulation and workability, and poor smearability, etc., to achieve good retarding effect, high Strength and compactness improvement effect

Active Publication Date: 2021-05-04
CHONGQING JIANDA BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general exterior wall insulation gypsum is used for building exterior wall insulation, and there are several key problems: ① The contradiction between the strength and density of exterior wall insulation gypsum
②Contradiction between thermal insulation and workability
Generally speaking, the better the thermal insulation, the worse the workability, especially the poorer the smearability

Method used

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  • A kind of light-weight and high-strength exterior wall interior thermal insulation gypsum and preparation method thereof
  • A kind of light-weight and high-strength exterior wall interior thermal insulation gypsum and preparation method thereof
  • A kind of light-weight and high-strength exterior wall interior thermal insulation gypsum and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A light-weight and high-strength thermal insulation gypsum for exterior walls, taking 100kg of building gypsum as an example, the raw materials and their quality are as follows:

[0032]

[0033] Among them: the particle size of the above-mentioned building gypsum is 45 μm to 145 μm, and the mass ratio of the particles distributed in the two intervals of 45 μm to 80 μm and 80 μm to 145 μm is 40:60;

[0034] The cement is grade 42.5 sulfoaluminate cement, the particle size is less than 45 μm, and the mass ratio of the particles distributed in the two intervals of <15 μm and 15 μm to 45 μm is 60:40;

[0035] The particle size of vitrified microbeads is 145 μm to 250 μm, and the mass ratio of particles distributed in the two intervals of 145 μm to 180 μm and 180 μm to 250 μm is 35:65;

[0036] The present invention optimizes the particle gradation of cementitious materials such as building gypsum, cement, and vitrified microbead light aggregates as a whole, and realizes...

Embodiment 2

[0047] A light-weight and high-strength thermal insulation gypsum for exterior walls, taking 100kg of building gypsum as an example, the raw materials and their quality are as follows:

[0048]

[0049] The specification and preparation method of the above-mentioned raw materials are the same as in Example 1.

Embodiment 3

[0051] A light-weight and high-strength thermal insulation gypsum for exterior walls, taking 100kg of building gypsum as an example, the raw materials and their quality are as follows:

[0052]

[0053] The specification and preparation method of the above-mentioned raw materials are the same as in Example 1.

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Abstract

The invention relates to a light-weight and high-strength thermal insulation gypsum for exterior walls. The raw materials of the thermal insulation gypsum for exterior walls include the following components in parts by mass: 100 parts of building gypsum, 5 to 15 parts of cement, micro vitrified 40-60 parts of beads, 120-170 parts of water, 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, 0.2-0.5 parts of retarder, 0.4-1.2 parts of polymer fiber. The present invention adopts various methods such as particle gradation optimization on the whole, water reducing agent, etc. to reduce the water demand under the standard working consistency, cement to increase hydration products, and retarder compounding to enhance and modify the thermal insulation gypsum in the outer wall to prepare The lightweight and high-strength external wall internal insulation gypsum not only has excellent thermal insulation performance, which can greatly reduce the energy consumption of building operation, but also has high strength. It solves the strength and workability problems of thermal insulation gypsum on the basis of low density and good thermal insulation performance.

Description

technical field [0001] The invention belongs to the technical field of building thermal insulation materials, and relates to a light-weight and high-strength external wall internal thermal insulation gypsum, and moreover to a preparation method thereof. Background technique [0002] With the deepening of the promotion and application of energy-saving buildings, insulation measures must be taken for the exterior walls of buildings to meet the basic requirements of building energy conservation. Building exterior wall insulation is divided into external insulation, internal insulation, and self-insulation. External insulation is more suitable for areas where thermal insulation is the mainstay, such as northern my country; internal insulation is more suitable for areas where thermal insulation is the mainstay, such as southern my country. [0003] There are mainly two technical approaches for thermal insulation of external walls: thermal insulation boards and thermal insulation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B111/28C04B111/40
Inventor 彭家惠张建新刘先锋瞿金东朱聪曹文湘
Owner CHONGQING JIANDA BUILDING MATERIAL
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