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A light-weight, high-strength thermal insulation plastering gypsum mortar and its preparation method

A plastering gypsum, high-strength technology, applied in the field of building plastering materials, to achieve the effect of strong operability, simple preparation method and low price

Active Publication Date: 2022-06-17
江苏博拓新型建筑材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese invention patent application with the publication number CN109437797A discloses a slag micropowder modified phosphogypsum mortar, which uses industrial solid waste phosphogypsum as the main raw material, slag micropowder and Portland cement as the activator, and utilizes the high activity and high According to the characteristics of specific surface area, a kind of slag micropowder modified phosphogypsum mortar with flexural and compressive strength up to the standard is prepared, but whether its setting time and construction performance can meet the industrial operation needs further research

Method used

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  • A light-weight, high-strength thermal insulation plastering gypsum mortar and its preparation method
  • A light-weight, high-strength thermal insulation plastering gypsum mortar and its preparation method

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Effect test

Embodiment 1

[0021] The light-weight high-strength thermal insulation plastering gypsum mortar of this embodiment includes the components and the weight parts of each component: 45 parts of gypsum powder, 5 parts of activated magnesium oxide, 1 part of magnesium sulfate, 12 parts of mineral retarder, 0.3 parts of changing agent, 3 parts of water retention thickener, 4.5 parts of vitrified microbeads, and 40 parts of water.

[0022] The mineral retarder in this embodiment is ultra-fine mineral powder, ultra-fine fly ash, and ultra-fine silica fume 1:1:0.1, which are the same in the following embodiments.

[0023] The preparation method of the mortar comprises the following steps: the preparation method of the light-weight high-strength thermal insulation plastering gypsum mortar is as follows: 1) the weighed gypsum powder, activated magnesium oxide, mineral retarder, mineral thixotropic agent, water-retaining thickener 2) Mix the weighed magnesium sulfate with water and stir well; 3) Add th...

Embodiment 2

[0026] The light-weight high-strength thermal insulation plastering gypsum mortar of this embodiment includes the components and the weight parts of each component: 55 parts of gypsum powder, 6 parts of activated magnesium oxide, 1.1 parts of magnesium sulfate, 15.25 parts of mineral retarder, 0.4 part of changing agent, 3% to 5.5 parts of water retention thickener, 7 parts of vitrified microbeads, and 50 parts of water.

[0027] The preparation method of the mortar comprises the following steps: the preparation method of the light-weight high-strength thermal insulation plastering gypsum mortar is as follows: 1) the weighed gypsum powder, activated magnesium oxide, mineral retarder, mineral thixotropic agent, water-retaining thickener 2) Mix the weighed magnesium sulfate with water and stir well; 3) Add the mixture obtained in step 2 to the mixture obtained in step 1, stir at low speed for 90-120s while adding, and stop for 15 minutes -30s, high-speed stirring for 60-90s, sta...

Embodiment 3

[0029] The lightweight high-strength thermal insulation plastering gypsum mortar of this embodiment includes the components and the weight parts of each component: 65 parts of gypsum powder, 7 parts of activated magnesium oxide, 1.2 parts of magnesium sulfate, 23 parts of mineral retarder, mineral contact 0.6 parts of changing agent, 4 parts of water retention thickener, 10 parts of vitrified microbeads, and 60 parts of water.

[0030] The preparation method of the mortar comprises the following steps: the preparation method of the light-weight high-strength thermal insulation plastering gypsum mortar is as follows: 1) the weighed gypsum powder, activated magnesium oxide, mineral retarder, mineral thixotropic agent, water-retaining thickener 2) Mix the weighed magnesium sulfate with water and stir well; 3) Add the mixture obtained in step 2 to the mixture obtained in step 1, stir at low speed for 90-120s while adding, and stop for 15 minutes -30s, high-speed stirring for 60-90...

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Abstract

The invention discloses a light-weight, high-strength thermal insulation plaster plaster mortar and a preparation method thereof. The components included in the gypsum mortar and the parts by weight of each component are: 45-70 parts of gypsum powder, 5-8 parts of activated magnesium oxide, 1-1.6 parts of magnesium sulfate, 9-40.25 parts of mineral retarder, and 9-40.25 parts of mineral thixotropic agent 0.3-0.9 parts, 3-5.5 parts of water-retaining thickener, 4.5-18 parts of vitrified microbeads, 40-70 parts of water. The mineral retarder of the present invention can not only prolong the setting time of the gypsum mortar, but also increase the strength of the gypsum mortar and improve the waterproof performance of the gypsum mortar, avoiding the problem of reducing the strength of the gypsum mortar by using salt and protein retarders. The gypsum mortar also uses a mineral thixotropic agent magnesium aluminum silicate, which improves the construction performance of the gypsum mortar; active magnesium oxide and magnesium sulfate are hydrated to form a magnesia gelling material, which improves the strength of the gypsum mortar. The invention also provides a preparation method of the light-weight, high-strength thermal insulation plastering gypsum mortar.

Description

technical field [0001] The invention relates to the technical field of building plastering materials, in particular to a light-weight high-strength thermal insulation plastering gypsum mortar and a preparation method thereof. Background technique [0002] Plastering gypsum, as an ecological and environmentally friendly plastering material for the interior walls and top surfaces of buildings, has attracted widespread attention after the country implemented the plan for energy conservation and emission reduction. Compared with traditional cement plastering materials, plastering plaster has the characteristics of light weight, no hollow cracking, good hygroscopicity, good volume stability, and excellent fire resistance and is widely used. The dry density of light plastering gypsum is below 1000kg / m3. Compared with ordinary plastering plaster, the use of lightweight plastering plaster will have a lower density, and low-density materials will also have a lower thermal conductivi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B111/27C04B111/28
CPCC04B28/144C04B2201/50C04B2201/20C04B2201/10C04B2111/28C04B2111/27C04B2111/00017C04B22/066C04B22/142C04B14/24C04B18/141C04B18/08C04B18/146C04B22/08C04B24/383C04B2103/0057
Inventor 顾红霞蒋文羊中军吴其胜罗乃将蒋正武
Owner 江苏博拓新型建筑材料股份有限公司
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