CN105884232A - Aluminum powder gas production promoter for aerated concrete - Google Patents
Aluminum powder gas production promoter for aerated concrete Download PDFInfo
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- CN105884232A CN105884232A CN201410597548.9A CN201410597548A CN105884232A CN 105884232 A CN105884232 A CN 105884232A CN 201410597548 A CN201410597548 A CN 201410597548A CN 105884232 A CN105884232 A CN 105884232A
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- Prior art keywords
- hydroxide
- aluminium powder
- aerogenesis
- accelerator
- gas production
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an aluminum powder gas production promoter for aerated concrete, and relates to the technical field of concrete. The promoter is composed of the following components in percentage by weight: 70 to 75% of potassium hydroxide, 15 to 20% of calcium hydroxide, 5 to 8% of aluminum hydroxide, 5 to 7% of sodium meta-aluminate, and 1 to 1.5% of naphthalene water reducer. The gas production promoter can replace quicklime completely, can solve the problem that the gas production effect is not stable because qualities of quicklime from different areas are different, is not needed to be heated at the same time, and can produce gas at a room temperature.
Description
Technical field:
The present invention relates to technical field of concrete, be specifically related to a kind of air entrained concrete aluminium powder aerogenesis
Accelerator.
Background technology:
During producing air-entrained concrete building block, it is as gas generating agent, aluminium powder and raw material with aluminium powder
In quick lime and water react, produce a large amount of hydrogen, be internally formed in a large number at cement slurry
Minute bubbles.Bubble formation abscess after theing cement solidifies, eventually becomes air entrained concrete stock, passes through
The air-entrained concrete building block of various sizes is become after cutting.
Quick lime plays 2 effects in this process, and one is to provide alkalescence ring for aluminium powder aerogenesis
Border；Two is that quick lime meets a large amount of heat production of water, supplements slurry temperature.
In conventional formulation, the purity requirement of quick lime is high, and the quality of natural quick lime is unstable,
Aerogenesis can be caused slow, uneven, and aerogenesis speed is unstable, can cause the mould that collapses, Chuan Pao time serious
Etc. phenomenon.And it is smooth slurry must to be warmed to more than 60 degree guarantee aerogenesis, the energy
Consume bigger.Owing to geographical position is different, manufacturer's buying high-quality quick lime is very difficult,
Should not grasp in technology controlling and process, percent defective is higher.
Summary of the invention:
It is an object of the invention to provide a kind of air entrained concrete aluminium powder aerogenesis accelerator, it can be complete
Replace quick lime, and eliminate the Lime Quality difference caused because of regional difference and bring and get angry
The problem that effect is unstable, without the need for heating, solves aluminium powder room temperature aerogenesis problem.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions:
Its main component and proportioning are as follows: potassium hydroxide 70～75%, calcium hydroxide 15～20%, hydrogen
Aluminium oxide 5～8%, sodium metaaluminate 5～7%, how based water reducer 1～1.5%.
As preferably, described potassium hydroxide belongs to caustic alkali, and alkalescence is strong more than quick lime, and
And purity is high, can be the alkaline environment providing higher of getting angry, aerogenesis can be made to accelerate.Hydrogen simultaneously
Potassium oxide and aluminium powder react the gas molecule quantity produced and want many 30%, it is possible to reduce aluminium powder uses
Amount.Calcium hydroxide can play part quick lime effect, reduces accelerator cost.
As preferably, described aluminium hydroxide, sodium metaaluminate can as the early strength agent of cement,
Abscess can be promoted to form intensity as early as possible, it is to avoid cell collapse causes the mould that collapses, Chuan Pao, improves into
Product rate, shortens the demoulding time, improves production efficiency.
As preferably, described how based water reducer can to a certain degree reduce the ratio of mud, can improve system
The later strength of product, shortens the demoulding cycle.
The method have the advantages that 1, eliminate what quick lime composition instability caused
Get angry uneven drawback；2, high-purity caustic alkali provides and more does to obtain alkaline environment, is to get angry
Speed accelerates, more stable；3, solving aluminium powder room temperature to get angry problem, cement slurry need not
Heating, reduces energy consumption and production costs；4, make air-entrained concrete building block the strongest, improve abscess
Rate of closed hole and stability, reduce mould risk of collapsing；5, later strength is improved, or in intensity not
Cement consumption can be reduced during change.
Detailed description of the invention:
This detailed description of the invention is by the following technical solutions: its main component and proportioning are as follows: hydrogen
Potassium oxide 70～75%, calcium hydroxide 15～20%, aluminium hydroxide 5～8%, sodium metaaluminate 5～7%,
How based water reducer 1～1.5%.
Described potassium hydroxide belongs to caustic alkali, and alkalescence is strong more than quick lime, and purity is high,
Can be the alkaline environment providing higher of getting angry, aerogenesis can be made to accelerate.Potassium hydroxide and aluminum simultaneously
The gas molecule quantity that powder reaction produces wants many 30%, it is possible to reduce aluminium powder usage amount.Hydroxide
Calcium can play part quick lime effect, reduces accelerator cost.Described aluminium hydroxide, inclined aluminum
Acid sodium can promote abscess to form intensity as early as possible, it is to avoid abscess as the early strength agent of cement
Rupture and cause the mould that collapses, Chuan Pao, improve yield rate, shorten the demoulding time, improve production efficiency.
Described how based water reducer can to a certain degree reduce the ratio of mud, can improve the later strength of goods,
Shorten the demoulding cycle.
This detailed description of the invention has the advantages that 1, eliminates quick lime composition shakiness
The fixed uneven drawback of getting angry caused；2, high-purity caustic alkali provides and more does to obtain alkaline environment,
Be raising rate accelerate, more stable；3, solve aluminium powder room temperature to get angry problem, cement slurry
Need not heating, reduce energy consumption and production costs；4, make air-entrained concrete building block the strongest, carry
High abscess rate of closed hole and stability, reduce mould risk of collapsing；5, later strength is improved, or
Cement consumption can be reduced when intensity is constant.
Embodiment:
1, proportioning is according to potassium hydroxide 70%, calcium hydroxide 17%, aluminium hydroxide 5%, partially
Sodium aluminate 7%, how based water reducer 1% mixes.
2, proportioning is according to potassium hydroxide 74%, calcium hydroxide 15%, aluminium hydroxide 7%, partially
Sodium aluminate 5%, how based water reducer 1.5% mixes.
Claims (3)
1. an air entrained concrete aluminium powder aerogenesis accelerator, it is characterised in that its main component and
Proportioning is as follows: potassium hydroxide 70～75%, calcium hydroxide 15～20%, aluminium hydroxide 5～8%,
Sodium metaaluminate 5～7%, how based water reducer 1～1.5%.
A kind of air entrained concrete aluminium powder aerogenesis accelerator the most according to claim 1, its
The described potassium hydroxide being characterised by described belongs to caustic alkali, and alkalescence is strong more than quick lime, and
And purity is high, can be the alkaline environment providing higher of getting angry, aerogenesis can be made to accelerate；Hydrogen simultaneously
Potassium oxide and aluminium powder react the gas molecule quantity produced and want many 30%, it is possible to reduce aluminium powder uses
Amount；Calcium hydroxide can play part quick lime effect, reduces accelerator cost.
A kind of air entrained concrete aluminium powder aerogenesis accelerator the most according to claim 1, its
It is characterised by that described aluminium hydroxide, sodium metaaluminate can be able to promote as the early strength agent of cement
Make abscess form intensity as early as possible, it is to avoid cell collapse causes the mould that collapses, Chuan Pao, improve yield rate,
Shorten the demoulding time, improve production efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597548.9A CN105884232A (en) | 2014-10-31 | 2014-10-31 | Aluminum powder gas production promoter for aerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597548.9A CN105884232A (en) | 2014-10-31 | 2014-10-31 | Aluminum powder gas production promoter for aerated concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105884232A true CN105884232A (en) | 2016-08-24 |
Family
ID=56697649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410597548.9A Pending CN105884232A (en) | 2014-10-31 | 2014-10-31 | Aluminum powder gas production promoter for aerated concrete |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608484A (en) * | 2009-07-20 | 2009-12-23 | 贵州源隆新型环保墙体建材有限公司 | A kind of phosphorous slag autoclave aerated concrete building block and preparation method thereof |
| CN103373836A (en) * | 2012-04-18 | 2013-10-30 | 汉中市众信建材有限责任公司 | Raw material formula of autoclaved aerated concrete including limestone powder, fly ash and sand |
| CN104016652A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | Autoclaved aerated concrete and preparation method thereof |
-
2014
- 2014-10-31 CN CN201410597548.9A patent/CN105884232A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608484A (en) * | 2009-07-20 | 2009-12-23 | 贵州源隆新型环保墙体建材有限公司 | A kind of phosphorous slag autoclave aerated concrete building block and preparation method thereof |
| CN103373836A (en) * | 2012-04-18 | 2013-10-30 | 汉中市众信建材有限责任公司 | Raw material formula of autoclaved aerated concrete including limestone powder, fly ash and sand |
| CN104016652A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | Autoclaved aerated concrete and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 王东升等: "《建设工程新技术新工艺概论》", 31 May 2008, 中国海洋大学出版社 * |
| 王绍文等: "《固体废弃物资源化技术与应用》", 30 June 2003, 冶金工业出版社 * |
| 薛叙明等: "《环境工程技术》", 31 July 2002, 化学工业出版社 * |
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Application publication date: 20160824 |
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