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Plastering gypsum mortar and preparation method thereof

A technique for plastering gypsum and mortar, which is applied in the field of plastering gypsum mortar and its preparation, can solve the problems of low coating rate of plastering gypsum mortar and the like, and achieves the effects of good thermal insulation performance, lower production cost and material saving.

Inactive Publication Date: 2022-04-08
娄城环保(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the common plastering gypsum mortars currently on the market have relatively low spreading rates. Therefore, it is urgent to design a plastering gypsum mortar that has high spreading rates, good construction performance and can meet the requirements of strength standards to solve the above problems.

Method used

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  • Plastering gypsum mortar and preparation method thereof
  • Plastering gypsum mortar and preparation method thereof
  • Plastering gypsum mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A plastering gypsum mortar, comprising components and the weight percentage of the components are: 75% of hemihydrate gypsum, 1% of vermiculite powder, 7.55% of heavy calcium powder, 15% of vitrified microbeads, 1% of ash calcium, cellulose Ether 0.2%, starch ether 0.05%, air-entraining agent 0.03%, retarder 0.12%, thixotropic agent 0.05%.

[0018] Specifically, the hemihydrate gypsum is β-type hemihydrate gypsum, the fineness of the vermiculite powder is 30-50 mesh, the fineness of the heavy calcium powder is 200 mesh, and the fineness of the vitrified microbeads is The degree is 70-90 mesh, the model of the cellulose ether is 4155P, and the model of the starch ether is A850.

[0019] Its preparation method comprises the following steps:

[0020] S1, according to the formula of above-mentioned a kind of plastering gypsum mortar, weigh each component for subsequent use;

[0021] S2, then add the hemihydrate gypsum, heavy calcium, gray calcium, cellulose ether, starch ...

Embodiment 2

[0027] A plastering gypsum mortar, comprising components and the weight percentage of the components are: 70% of hemihydrate gypsum, 1.05% of vermiculite powder, 9.25% of heavy calcium powder, 18% of vitrified microbeads, 1.15% of lime calcium, cellulose Ether 0.25%, starch ether 0.06%, air-entraining agent 0.04%, retarder 0.14%, thixotropic agent 0.06%.

[0028] Specifically, the hemihydrate gypsum is β-type hemihydrate gypsum, the fineness of the vermiculite powder is 30-50 mesh, the fineness of the heavy calcium powder is 200 mesh, and the fineness of the vitrified microbeads is The degree is 70-90 mesh, the model of the cellulose ether is 4155P, and the model of the starch ether is A850.

[0029] Its preparation method comprises the following steps:

[0030] S1, according to the formula of above-mentioned a kind of plastering gypsum mortar, weigh each component for subsequent use;

[0031] S2, then add the hemihydrate gypsum, heavy calcium, gray calcium, cellulose ether,...

Embodiment 3

[0037] A plastering gypsum mortar, comprising components and the weight percentage of the components are: 80% of hemihydrate gypsum, 0.95% of vermiculite powder, 5.04% of heavy calcium powder, 13% of vitrified microbeads, 0.65% of lime calcium, cellulose Ether 0.15%, starch ether 0.04%, air-entraining agent 0.02%, retarder 0.11%, thixotropic agent 0.04%.

[0038] Specifically, the hemihydrate gypsum is β-type hemihydrate gypsum, the fineness of the vermiculite powder is 30-50 mesh, the fineness of the heavy calcium powder is 200 mesh, and the fineness of the vitrified microbeads is The degree is 70-90 mesh, the model of the cellulose ether is 4155P, and the model of the starch ether is A850.

[0039] Its preparation method comprises the following steps:

[0040] S1, according to the formula of above-mentioned a kind of plastering gypsum mortar, weigh each component for subsequent use;

[0041] S2, then add the hemihydrate gypsum, heavy calcium, gray calcium, cellulose ether,...

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Abstract

The invention discloses plastering gypsum mortar and a preparation method thereof. The plastering gypsum mortar comprises the following components in percentage by weight: 70%-80% of semi-hydrated gypsum, 0.95%-1.05% of vermiculite powder, 6%-10% of heavy calcium powder, 10%-18% of glass beads, 0.65%-1.15% of ash calcium, 0.15%-0.25% of cellulose ether, 0.04%-0.06% of starch ether, 0.02%-0.04% of an air entraining agent, 0.11%-0.14% of a retarder and 0.04%-0.06% of a thixotropic agent. The plastering gypsum mortar is high in coating rate, low in heat conductivity coefficient, good in heat preservation performance, low in shrinkage compared with cement mortar, free of hollowing and falling off after being smeared on a wall and good in construction performance, greatly saves the material consumption and further reduces the material use cost, and is the best environment-friendly plastering material for replacing existing plastering mortar including the cement mortar.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a plastering gypsum mortar and a preparation method thereof. Background technique [0002] Plastering gypsum mortar is a newer, more environmentally friendly and more economical product that replaces cement mortar. It not only has the strength of cement, but also is healthier and more environmentally friendly than cement. It is durable, has strong adhesion, is not easy to pulverize, and is not It has the advantages of cracking, no hollowing, no powder falling, etc., is easy to use, saves cost, basically solves the problems of hollowing, cracks and falling off of the plaster layer, and shortens the plastering period, and improves the efficiency compared with the traditional cement mortar plastering process 1.5-2 times. The quality of common plastering gypsum mortars currently on the market is uneven, and an important parameter to measure the usable area of ​​plastering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B14/24C04B14/20
Inventor 瞿国联李扣兰龚伟忠陈波
Owner 娄城环保(苏州)有限公司
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