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Desulfurized gypsum based functional mortar for coating and preparation method thereof

A technology of desulfurized gypsum and plastering mortar, which is applied in the field of functional materials and building materials, can solve the problems of fast setting time and low strength, and achieve the effect of long construction time, high strength and excellent performance indicators

Inactive Publication Date: 2012-12-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the vigorous development of my country's construction industry, a large amount of mortar is required for indoor plastering and plastering. Gypsum-based mortar has a certain humidity regulating effect, is not easy to hollow and crack, and has good sound and heat insulation effects. It is a very good building interior Plastering mortar has been widely used in building interior wall plastering and plastering in western developed countries, but it is also vulnerable to its shortcomings such as fast setting time and low strength.

Method used

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  • Desulfurized gypsum based functional mortar for coating and preparation method thereof
  • Desulfurized gypsum based functional mortar for coating and preparation method thereof
  • Desulfurized gypsum based functional mortar for coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Desulfurized gypsum-based functional plastering mortar for non-humid indoor plastering, its components and proportions (weight percent) are: desulfurized gypsum: 27.8, S95 slag micropowder: 6, quartz sand: 60, diatomaceous earth : 4. Nano titanium dioxide: 0.3, redispersible latex powder: 0.7, cellulose ether: 0.1, defoamer: 0.065, water repellent: 0.4, lithium carbonate early strength agent: 0.6, retarder: 0.035; its total The parts by weight are 100 parts.

[0023] The performance results obtained from the detection test are shown in Table 2.

[0024] Table 2 The performance test results of the desulfurized gypsum-based functional plastering mortar of Example 1

[0025]

Embodiment 2

[0026] Example 2: Desulfurized gypsum-based functional plastering mortar that can be used for relatively humid indoor plastering, its components and proportions (weight percentage) are: desulfurized gypsum: 22, S95 slag micropowder: 10, quartz sand: 60, diatom Soil: 5.1, nano-titanium dioxide: 0.4, redispersible latex powder: 1.14, cellulose ether: 0.13, defoamer: 0.1, water repellent: 0.6, lithium carbonate early strength agent: 0.5, retarder: 0.03; The total parts by weight are 100 parts.

[0027] The performance results obtained from the detection test are shown in Table 3.

[0028] Table 3 The performance test results of the desulfurized gypsum-based functional plastering mortar of Example 2

[0029]

[0030] It can be seen from the above examples that the desulfurized gypsum-based functional plastering mortar proposed by the present invention can be formulated into corresponding products according to the requirements of construction projects. All performance indicato...

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Abstract

The invention relates to desulfurized gypsum based functional mortar for coating and a preparation method thereof. The desulfurized gypsum based functional mortar for coating comprises the following components in parts by weight: 20-35 parts of desulfurized gypsum, 5-10 parts of S95 superfine slag powder, 50-70 parts of quartz sands, 3-6 parts of kieselguhr, 0.2-0.5 parts of nanometer titanium dioxide, 0.5-1.5 parts of redispersible latex powder, 0.05-0.2 part of cellulose ether, 0-0.2 part of defoaming agent, 0.3-0.8 part of water repellent, 0.5-1.0 part of lithium carbonate early strength agent and 0.02-0.05 part of retarder. The desulfurized gypsum based functional mortar for coating, provided by the invention, has the advantages of good self-purification property, good self-humidifying property, good adhesive property, good construction performance, higher compressive strength and the like, and has good effects of purifying the air and adjusting the humidity when plastering an indoor wall of a building, so that the desulfurized gypsum based functional mortar for coating can be applied for plastering engineering of all kinds of indoor walls of buildings, and a large amount of industrial solid wastes are utilized with lower economic cost, and good environmental-friendly, energy-saving and waste utilization effects.

Description

technical field [0001] The invention belongs to the technical field of building materials, and also relates to the technical field of functional materials, in particular to a desulfurized gypsum-based functional type compound composed of desulfurized gypsum, slag micropowder, quartz sand, diatomite, nano-titanium dioxide, chemical additives, etc. Plastering mortar and preparation method thereof. Background technique [0002] With the development of my country's economy, the resource utilization of solid waste has been paid more and more attention. Desulfurization gypsum is a solid waste produced in the flue gas desulfurization process of coal-fired power plants, and has become the second largest solid waste except fly ash; nearly 100 million tons of wet flue gas desulfurization gypsum are produced in my country every year. Storage not only takes up a lot of land, but also pollutes the environment and land. Therefore, the utilization and research of industrial solid wastes s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
Inventor 张国防王培铭朱绘美李好新朱东坡
Owner TONGJI UNIV
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