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Gypsum-based dry-mixed moisture-proof anti-crack mortar and preparation method thereof

An anti-crack mortar and backbone technology to achieve the effect of reducing absorption, improving moisture resistance and crack resistance, and reducing the possibility of

Inactive Publication Date: 2022-06-10
苏州白鲨建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the cracking of mortar under water vapor erosion, that is, the defect of poor moisture-proof and crack-resistant properties of mortar, this application provides a gypsum-based dry-mixed moisture-proof and crack-resistant mortar and its preparation method

Method used

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  • Gypsum-based dry-mixed moisture-proof anti-crack mortar and preparation method thereof
  • Gypsum-based dry-mixed moisture-proof anti-crack mortar and preparation method thereof
  • Gypsum-based dry-mixed moisture-proof anti-crack mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0045] Preparation example 21-24

[0046] Dispersant preparation example

preparation example 2-4

[0048] Preparation 32

[0049] Preparation 33

[0050] Preparation example 34-36

[0051] Example 1-3

preparation example 5-9

[0053] Table 5 Example 1-3 Moisture-proof and anti-cracking mortar composition

[0054] Example 5

[0055] Example 6-15

[0056] Examples 16-21

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Abstract

The invention relates to the field of building materials, and particularly discloses gypsum-based dry-mixed moisture-proof anti-crack mortar and a preparation method thereof. The gypsum-based dry-mixed moisture-proof anti-crack mortar is prepared from, by weight, 60-70 parts of ardealite, 5-10 parts of filler, 5-10 parts of fine sand, 5-15 parts of cement, 1-2 parts of slaked lime and 0.1-0.3 part of retarder, the filler is prepared from kieselguhr and paraffin emulsion according to the mass ratio of (2-3): (1-2), and the paraffin emulsion is rosin-modified liquid paraffin; the preparation method comprises the following steps: S1, phosphogypsum pretreatment; s2, carrying out gelling reaction on the ardealite; s3, mortar preparation. The gypsum-based dry-mixed moisture-proof anti-crack mortar can be used for building blocks, blocky material binding materials and the like, and has the advantages of being good in water vapor isolation effect and not prone to cracking; in addition, the preparation method disclosed by the invention has the advantages of simplicity and convenience in operation and stable mortar property.

Description

technical field [0001] The present application relates to the field of building materials, in particular to a gypsum-based dry-mixed moisture-proof and crack-resistant mortar and a preparation method thereof. Background technique [0002] Gypsum is another resource with relatively abundant reserves in my country. Applying gypsum to the field of building materials can obtain building materials with excellent performances such as fire resistance, breathing function, thermal insulation, heat insulation, and sound insulation. At the same time, gypsum building material is a light material, which can reduce the self-weight of the building and improve the earthquake resistance and safety of the building. [0003] Among gypsum building materials, gypsum-based mortar is widely used. Compared with ordinary cement mortar, gypsum-based mortar has excellent effects such as health and environmental protection, durability, strong adhesion, and not easy to pulverize. Gypsum-based mortar is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/27
CPCC04B28/143C04B2111/27C04B7/00C04B14/06C04B14/08C04B22/064C04B24/36C04B24/2611C04B24/2682C04B22/02C04B2103/22
Inventor 闵炳茂沈明华闵明桂宗根
Owner 苏州白鲨建材有限公司
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