CN103351148B - Desulfurization gypsum block - Google Patents
Desulfurization gypsum block Download PDFInfo
- Publication number
- CN103351148B CN103351148B CN201310301138.0A CN201310301138A CN103351148B CN 103351148 B CN103351148 B CN 103351148B CN 201310301138 A CN201310301138 A CN 201310301138A CN 103351148 B CN103351148 B CN 103351148B
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- China
- Prior art keywords
- desulfurization gypsum
- gypsum block
- mineral admixture
- weight percentage
- white cement
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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
The present invention relates to a kind of material of construction, particularly a kind of desulfurization gypsum block.
Background technology
The flue gas desulfurization that current industry uses produces a large amount of industrial residue-desulfurated plaster, stack these industrial residue-desulfurated plasters and occupy a large amount of soils, good farmland, also there is no a kind of well treating method, bringing secondary pollution to our life, is also our pollution problem to environment urgently to be resolved hurrily.
Summary of the invention
Technical problem: the object of the invention is to provide a kind of desulfurization gypsum block, utilize industrial by-products, solves industrial residue to the pollution problem of environment.
Technical scheme: the object of the present invention is achieved like this: this desulfurization gypsum block comprises desulfurated plaster, SC calcium sulphate retarder, mineral admixture and glass fibre; Described mineral admixture is unslaked lime, white cement and flyash; Described desulfurated plaster is 78.6%, SC calcium sulphate retarder is 0.2%, mineral admixture is 20%, glass fibre is 1.2%, is all weight percentage; The unslaked lime of described mineral admixture: white cement: flyash=1:4:3, consumptive use of water normal consistence controls 53% ~ 58%; Described flyash is II grade, and white cement is P.C32.5, and glass fibre is 15mm ~ 20mm.
Beneficial effect: owing to have employed such scheme, owing to mixing multi-component admixture again, obviously improves, improves serviceability and the physical and mechanical property of gypsum block, while meeting national regulation, improve the performance of desulfurization gypsum block largely.Prepared desulfurization gypsum block, first final setting time is 49min and 68mi n, and length, height and thickness deviation are respectively+2.3mm ,+1.4 mm and-0.6 mm, and planeness is 0.9mm, and apparent density is 1092 kg/m
3, 3d and 28d breaking load is respectively 7.06kN and 12.87kN coefficient of softening 0.69 and all meets specification.Desulfurated plaster is utilized to prepare desulfurization gypsum block for main raw material(s), solve desulfurated plaster based on stocking and storing, land occupation resource, to the problem of environmental danger, for China's material of construction provides new variety, effectively control the problem of environmental pollution of China, for the modern urban construction of China provides novel starting material, selected material has desulfurated plaster and the flyash of larger component, solves the problem of part industrial residue environmental pollution; For the material of construction that China is novel strides forward the contribution made and having given prominence to.
Advantage: this desulfurization gypsum block forms primarily of industrial residue, is applicable to the infilled wall of dry environment frame structures under action, and can be prefabricated in the factory production, can realize convenient, fast construction.Desulfurization gypsum block prepared by the present invention significantly improves its serviceability and physical and mechanical property, "dead", unharmful substance and non-corrosiveness.The target that environmental protect saves the material of construction of the energy and innovation China can be realized, produce good Social benefit and economic benefit.
Embodiment
Embodiment: this desulfurization gypsum block comprises desulfurated plaster, SC calcium sulphate retarder, mineral admixture and glass fibre; Described mineral admixture is unslaked lime, white cement and flyash; Described desulfurated plaster is 78.6%, SC calcium sulphate retarder is 0.2%, mineral admixture is 20%, glass fibre is 1.2%, is all weight percentage; The unslaked lime of described mineral admixture: white cement: flyash=1:4:3, consumptive use of water normal consistence controls 53% ~ 58%; Described flyash is II grade, and white cement is P.C32.5, and glass fibre is 15mm ~ 20mm.
Claims (1)
1. a desulfurization gypsum block, is characterized in that: this desulfurization gypsum block comprises desulfurated plaster, SC calcium sulphate retarder, mineral admixture and glass fibre; Described mineral admixture is unslaked lime, white cement and flyash; Described desulfurated plaster is 78.6%, SC calcium sulphate retarder is 0.2%, mineral admixture is 20%, glass fibre is 1.2%, is all weight percentage; The unslaked lime of described mineral admixture: white cement: flyash=1:4:3;
The consumptive use of water normal consistence of described desulfurization gypsum block controls 53% ~ 58%;
Described flyash is II grade, and white cement is P.C32.5, and glass fibre is 15mm ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301138.0A CN103351148B (en) | 2013-07-18 | 2013-07-18 | Desulfurization gypsum block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301138.0A CN103351148B (en) | 2013-07-18 | 2013-07-18 | Desulfurization gypsum block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103351148A CN103351148A (en) | 2013-10-16 |
| CN103351148B true CN103351148B (en) | 2014-12-31 |
Family
ID=49307588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310301138.0A Expired - Fee Related CN103351148B (en) | 2013-07-18 | 2013-07-18 | Desulfurization gypsum block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103351148B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630884B (en) * | 2016-10-30 | 2019-03-19 | 张亮 | A kind of high-density gypsum building block |
| CN110194639A (en) * | 2019-01-03 | 2019-09-03 | 内蒙古云农实业有限公司 | A kind of high strength gypsum base foamed light thermal insulation material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001139356A (en) * | 1999-11-08 | 2001-05-22 | Taiheiyo Cement Corp | Gypsum for cement, process and equipment for producing the same and cement composition |
| CN101250051A (en) * | 2008-01-31 | 2008-08-27 | 上海中绿建材有限公司 | Gypsum terrace material |
| CN101993232A (en) * | 2009-08-19 | 2011-03-30 | 江苏仁和建材科技有限公司 | Crack-resisting masonry mortar for air-entrapping brick wall body, prepared from desulfurization gypsum powder |
| CN101891439A (en) * | 2010-07-02 | 2010-11-24 | 上海市建筑科学研究院(集团)有限公司 | Lightweight gypsum plaster mortar |
-
2013
- 2013-07-18 CN CN201310301138.0A patent/CN103351148B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103351148A (en) | 2013-10-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160718 |