CN102731049B - Autoclaved aerated concrete - Google Patents
Autoclaved aerated concrete Download PDFInfo
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- CN102731049B CN102731049B CN201210199385.XA CN201210199385A CN102731049B CN 102731049 B CN102731049 B CN 102731049B CN 201210199385 A CN201210199385 A CN 201210199385A CN 102731049 B CN102731049 B CN 102731049B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides an autoclaved aerated concrete. Ingredients for the concrete comprise, by mass, 100 parts of lime, 10 to 30 parts of cement, 160 to 350 parts of fly ash, 0.06 to 0.6 part of aluminum powder and 0.2 to 0.8 part of EPS polyphenyl granules. The autoclaved aerated concrete provided in the invention improves compressive strength of aerated concrete, reduces the shrink rate of materials and effectively overcomes the problem of cracking besides maintaining original performance of aerated concrete.
Description
Technical field
The present invention relates to a kind of New Building Materials, specifically a kind of steam-pressing aero-concrete.
Background technology
At present, along with country is about policy guidances such as " low-carbon (LC) ", " four joint one environmental protection ", carrying forward vigorously wallboard innovation and promoting energy saving building has become inexorable trend.Building trade, in banning use of the implementation process of clay brick, has been emerged in large numbers a large amount of non-clay goods materials for walls, and if gas concrete is exactly a kind of extraordinary clay substitute, not only having well can working ability and heat insulation and insulated capacity, also environmental protection.But see according to existing market practical situations, existing gas concrete, because its composition material and production technique exist intrinsic deficiency, is exactly that gas concrete shrinking percentage is larger, and ultimate compression strength is low, easily produce cracking, affect wall performance.
Summary of the invention
Ultimate compression strength for above-mentioned existing concrete is lower, material contracts rate is sent to, the easy deficiency of cracking, the invention provides a kind ofly when guaranteeing the original performance of gas concrete, increase ultimate compression strength and reduce material contracts rate, effectively solve the steam-pressing aero-concrete of problem of Cracking.
For achieving the above object, the technical solution used in the present invention is:
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 10 ~ 30 parts of cement; 160 ~ 350 parts, flyash; 0.06 ~ 0.6 part of aluminium powder; 0.2 ~ 0.8 part of EPS granular polystyrene.
Further, the ratio of quality and the number of copies of described five kinds of components is: 100 parts, lime; 20 ~ 25 parts of cement; 200 ~ 260 parts, flyash; 0.1 ~ 0.4 part of aluminium powder; 0.3 ~ 0.5 part of EPS granular polystyrene.
Further, described EPS granular polystyrene is the rounded grain that former germinal vesicle forms, the diameter≤5mm of described rounded grain, density 4 ~ 6kg/m
3.
Technical conceive of the present invention is: at traditional aeroconcrete proportioning: in lime, cement, flyash, aluminium powder, as required, add a certain proportion of EPS granular polystyrene.Wherein say that the EPS granular polystyrene adding is the rounded grain that former germinal vesicle forms, diameter≤5mm, density 4 ~ 6kg/m
3.
In existing gas concrete, aluminium powder, as foam material, produces a large amount of bubbles, be evenly distributed in concrete, but the concrete voidage after moulding is large, and shrinking percentage is high, and ultimate compression strength is little, easily cracking.For this reason, the EPS granular polystyrene adding just in time replaces the original space of part.Guaranteeing on the basis of same volume density, material contracts rate, ultimate compression strength aspect all obtain larger change.But, if the EPS granular polystyrene adding is more than 0.8 part, can affects concrete workability and volume density, and be less than 0.2 part of ultimate compression strength that directly affects finished product.
Compared with prior art, the beneficial effect that this invention brings is: this invention is increasing under the prerequisite that seldom cost drops into, and when guaranteeing the original performance of gas concrete, increases ultimate compression strength and reduces material contracts rate, solved gas concrete intensity low large with contraction, easily the deficiency of cracking.Applied widely, have good value for applications.
Embodiment
Below the present invention will be further described.
Embodiment 1
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 10 parts of cement; 160 parts, flyash; 0.06 part of aluminium powder; 0.2 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 2
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 15 parts of cement; 180 parts, flyash; 0.08 part of aluminium powder; 0.25 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 3
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 20 parts of cement; 200 parts, flyash; 0.1 part of aluminium powder; 0.3 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 4
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 22 parts of cement; 250 parts, flyash; 0.3 part of aluminium powder; 0.4 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 5
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 25 parts of cement; 260 parts, flyash; 0.4 part of aluminium powder; 0.5 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 6
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 28 parts of cement; 300 parts, flyash; 0.5 part of aluminium powder; 0.6 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 7
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 30 parts of cement; 280 parts, flyash; 0.45 part of aluminium powder; 0.8 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Embodiment 8
, described concrete batching comprises lime, cement, flyash and aluminium powder, and described concrete batching also comprises EPS granular polystyrene, and the ratio of quality and the number of copies of five kinds of components is: 100 parts, lime; 30 parts of cement; 350 parts, flyash; 0.6 part of aluminium powder; 0.8 part of EPS granular polystyrene.
In the present embodiment, on the basis with former gas concrete same volume density, existing material contracts rate, ultimate compression strength aspect all obtain larger change, and shrinkage crack situation is also greatly improved.
Claims (3)
1. a steam-pressing aero-concrete, described concrete batching comprises lime, cement, flyash and aluminium powder, it is characterized in that: described concrete batching also comprises EPS granular polystyrene, the ratio of quality and the number of copies of five kinds of components is:
100 parts, lime;
10 ~ 30 parts of cement;
160 ~ 350 parts, flyash;
0.06 ~ 0.6 part of aluminium powder;
0.2 ~ 0.8 part of EPS granular polystyrene.
2. steam-pressing aero-concrete as claimed in claim 1, is characterized in that: the ratio of quality and the number of copies of described five kinds of components is:
100 parts, lime;
20 ~ 25 parts of cement;
200 ~ 260 parts, flyash;
0.1 ~ 0.4 part of aluminium powder;
0.3 ~ 0.5 part of EPS granular polystyrene.
3. steam-pressing aero-concrete as claimed in claim 1 or 2, is characterized in that: described EPS granular polystyrene is the rounded grain that former germinal vesicle forms the diameter≤5mm of described rounded grain, density 4 ~ 6kg/m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199385.XA CN102731049B (en) | 2012-06-13 | 2012-06-13 | Autoclaved aerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199385.XA CN102731049B (en) | 2012-06-13 | 2012-06-13 | Autoclaved aerated concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102731049A CN102731049A (en) | 2012-10-17 |
| CN102731049B true CN102731049B (en) | 2014-02-05 |
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| CN201210199385.XA Active CN102731049B (en) | 2012-06-13 | 2012-06-13 | Autoclaved aerated concrete |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058596A (en) * | 2013-01-10 | 2013-04-24 | 浙江杭萧钢构股份有限公司 | Autoclaved aerated concrete |
| CN105218047A (en) * | 2015-08-30 | 2016-01-06 | 常州市鼎日环保科技有限公司 | A kind of preparation method of high strength foam concrete building block |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580365A (en) * | 2009-06-17 | 2009-11-18 | 重庆交通大学 | Wall material of polystyrene aeroconcrete |
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2012
- 2012-06-13 CN CN201210199385.XA patent/CN102731049B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580365A (en) * | 2009-06-17 | 2009-11-18 | 重庆交通大学 | Wall material of polystyrene aeroconcrete |
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| CN102731049A (en) | 2012-10-17 |
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Owner name: HANGXIAO STEEL COMPONENT CO., LTD. Free format text: FORMER NAME: ZHEJIANG HANGXIAO STEEL STRUCTURE CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 311217 Xinjie Town, Xiaoshan District, Zhejiang, Hangzhou Patentee after: Hang Xiao Gang Gou limited company Address before: 311217 Xinjie Town, Xiaoshan District, Zhejiang, Hangzhou Patentee before: Zhejiang Hangxiao Steel Structure Co., Ltd. |