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Desulfurization gypsum block

A technology for desulfurizing gypsum and blocks, applied in the field of building materials, can solve problems such as industrial waste residue pollution, and achieve the effects of improving the environment, fast construction, and improving work performance and physical and mechanical properties.

Inactive Publication Date: 2014-12-31
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: The purpose of this invention is to provide a desulfurized gypsum block, which uses industrial by-products to solve the problem of environmental pollution caused by industrial waste residues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0007] Embodiment: The desulfurized gypsum building blocks include desulfurized gypsum, SC gypsum retarder, mineral admixtures and glass fibers; the mineral admixtures are quicklime, white cement and fly ash; the desulfurized gypsum is 78.6 %, SC gypsum retarder is 0.2%, mineral admixture is 20%, glass fiber is 1.2%, all are percentages by weight; the quicklime of the mineral admixture: white cement: fly ash=1:4 : 3, the water consumption of the standard consistency is controlled at 53%~58%; the fly ash is grade Ⅱ, the white cement is P.C32.5, and the glass fiber is 15mm~20mm.

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Abstract

The invention relates to a desulfurization gypsum block, belonging to a building material. A mineral admixture comprises quick lime, white cement and coal ash, the weight percentage of desulfurization gypsum is 78.6%, the weight percentage of SC gypsum retarder is 0.2%, the weight percentage of the mineral admixture is 20%, and the weight percentage of glass fiber is 1.2%; the ratio of the quick lime to the white cement to the coal ash in the mineral admixture is 1:4:3, the water consumption for normal consistency is controlled to be 53%-58%; the coal ash is II-level coal ash, the white cement is P.C32.5, and the glass fiber is 15-20 mm. The advantages are as follows: the desulfurization gypsum block is mainly prepared from industrial residues, is applicable to a filler wall in a frame structure under a dry environment, can be prefabricated in a factory, and can achieve convenient and rapid construction. The desulfurization gypsum block prepared by the invention is remarkably improved in working performance and physical and mechanical properties, and has no radioactivity, hazardous substance or corrosivity.

Description

technical field [0001] The invention relates to a building material, in particular to a desulfurized gypsum block. Background technique [0002] At present, the flue gas desulfurization used in the industry produces a large amount of industrial waste residue - desulfurization gypsum, stacking these industrial waste residue - desulfurization gypsum takes up a lot of land and fertile fields, and there is no good treatment method, which brings secondary pollution to our life , is also an environmental pollution problem that we urgently need to solve. Contents of the invention [0003] Technical problem: The purpose of this invention is to provide a desulfurized gypsum block, which uses industrial by-products to solve the problem of environmental pollution caused by industrial waste residues. [0004] Technical solution: The object of the present invention is achieved in this way: the desulfurized gypsum block includes desulfurized gypsum, SC gypsum retarder, mineral admixtur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B22/00
Inventor 吕恒林周淑春李体浩
Owner CHINA UNIV OF MINING & TECH
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