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Environmental-friendly gypsum board

A gypsum board and environmental protection technology, applied in the field of building materials, can solve problems such as low, one direction of research in building materials, general wear resistance of gypsum board, etc., to achieve good environmental protection function, no radioactive poison, hard texture. Effect

Inactive Publication Date: 2015-02-18
合肥向荣环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wear resistance of gypsum board is average, and the environmental protection requirements are not high. It is a research direction in building materials, but its application scope still needs to be developed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The environmentally friendly gypsum board is composed of the following raw materials in parts by weight: 20-25 parts of blast furnace slag with a particle size of 80-100 μm, 30-45 parts of exhaust gas desulfurization gypsum, 8-10 parts of plant ash, 12-15 parts of slag wool, 9- 11 parts of water glass, 3 to 5 parts of water reducer, 40 to 50 parts of water with a Ph value of 9-11, the specific preparation method proceeds in the following steps:

[0015] 1) Mix blast furnace slag, slag wool and flue gas desulfurization gypsum, add water with 30-50% of the weight of flue gas desulfurization gypsum at the same time, stir for 10-12 hours, then put it into the aging warehouse for aging, the stirring speed is 800-1000rpm, the stirring time for 9 to 11 hours, and then dried in the sun to obtain aged materials with a moisture content controlled at 5-9%;

[0016] 2) Add plant ash, water glass, water reducer, and remaining water to the aging material obtained in step 1), then put...

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Abstract

The invention discloses an environmental-friendly gypsum board. The environmental-friendly gypsum board comprises the following raw materials in parts by weight: 20-25 parts of blast furnace slag with the particle size of 80-100 microns, 30-45 parts of flue gas desulfurization gypsum, 8-10 parts of plant ash, 12-15 parts of slag wool, 9-11 parts of water glass, 3-5 parts a water reducer and 40-50 parts of water with the Ph value of 9-11. The environmental-friendly gypsum board uses the blast furnace slag, the plant ash and the slag wool as the raw materials, is formaldehyde-free and pollution-free during production, meanwhile, realizes recycling of gypsum resources, and has an excellent environmental-friendly function while ensuring the strength and the hardness of the gypsum board.

Description

[0001] technical field [0002] The invention relates to the field of building materials used for interior decoration, in particular to environmentally friendly gypsum boards. [0003] Background technique [0004] Gypsum board is widely used in building decoration materials because of its light weight, high strength, sound insulation, heat insulation, fire prevention, and easy processing. The wear resistance of gypsum board is average, and the environmental protection requirements are not high. It is a direction of research in building materials, but its application scope still needs to be developed. [0005] Contents of the invention [0006] The purpose of the present invention is to provide an environmentally friendly gypsum board, using blast furnace slag, plant ash, and slag cotton as raw materials to produce formaldehyde-free and pollution-free, and at the same time realize the reuse of gypsum resources, ensure the strength and hardness of the gypsum board, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B28/14C04B18/14
CPCY02W30/91
Inventor 不公告发明人
Owner 合肥向荣环保科技有限公司
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