CN101759385A - Fly ash concrete expansion agent - Google Patents
Fly ash concrete expansion agent Download PDFInfo
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- CN101759385A CN101759385A CN200910227541A CN200910227541A CN101759385A CN 101759385 A CN101759385 A CN 101759385A CN 200910227541 A CN200910227541 A CN 200910227541A CN 200910227541 A CN200910227541 A CN 200910227541A CN 101759385 A CN101759385 A CN 101759385A
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- fly ash
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Abstract
The invention discloses a fly ash concrete expansion agent. The expansion agent is prepared from the following raw materials based on parts by weight: 30 parts of sulphate aluminium cement, 30 parts of I grade fly ash, 30 parts of phosphogypsum, 5 parts of calcium oxide powder, and 5 parts of alunite powder. Before weighing, the raw materials are respectively pretreated, the fineness achieves the extent that the sieve residue is smaller than 1% by a sieve of 180 meshes. After weighing by proportioning and metering, the raw materials are uniformly mixed, inspected and bagged, and then the finished product is prepared. The property of the expansion agent is guaranteed, and simultaneously, the manufacture technology is simplified, and the manufacture cost is greatly reduced; the environment is favorably protected by using industrial residues; the expansion agent can be used for the compensating shrinkage, crack and permeation resistance and natural water prevention of the concrete, and various concrete structures with the requirement of prestress.
Description
Technical field
The present invention relates to building material technical field, especially relate to a kind of fly ash concrete expansion agent.
Background technology
Existing swelling agent is made needs calcining mostly, and manufacture craft is comparatively complicated, and cost is higher.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of fly ash concrete expansion agent, when guaranteeing the swelling agent performance, reduce its cost of manufacture greatly, and adopt industrial residue to help environmental protection.
For achieving the above object, the present invention by the following technical solutions:
Fly ash concrete expansion agent of the present invention proportioning raw materials by weight is: 30 parts of aluminosulfate cements, 30 parts of I level flyash, 30 parts of phosphogypsums, 5 parts of calcium lime powders, 5 parts of alum stone flours; All make fineness all reach 180 mesh sieves before raw material is weighed to tail over through pre-treatment＜1%, by behind the proportioning computation weigh various raw materials being mixed, check, pack finished product.
The invention has the beneficial effects as follows:
The raw materials such as flyash that it is qualified that the present invention utilizes fineness are directly prepared, and under the situation that its performance does not subtract, utilize industrial residue, and environmental protection and waste utilization is beneficial to the resources circulation development; Simplify technology, lowered the material material cost, cheap, make simple.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can obtain instruction from the practice of the present invention to investigating hereinafter.
Embodiment
Below in conjunction with embodiment the present invention is further described.
The fly ash concrete expansion agent of present embodiment proportioning raw materials by weight is: 30 parts of aluminosulfate cements, 30 parts of I level flyash, 30 parts of phosphogypsums, 5 parts of calcium lime powders, 5 parts of alum stone flours; All make fineness all reach 180 mesh sieves before raw material is weighed to tail over through pre-treatment＜1%, by behind the proportioning computation weigh various raw materials being mixed, check, pack finished product.
The putty of making: outward appearance, grey fine powder; Magnesium chloride ,≤5.0%; Water ratio ,≤3.0%; Total alkali content ,≤0.75; Chlorion ,≤0.05; Fineness, 0.08mm tails over≤10%; Physicals: initial set 〉=45min; Final set ,≤10h.Limited expansion rate, 7d in the water, 〉=0.025%, 28d≤0.10%; In the air, 21d 〉=-0.02%.Ultimate compression strength, 7d 〉=25Mpa; 28d 〉=45Mpa; Folding strength, 7d 〉=4.5Mpa, 28d 〉=6.5Mpa.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. a fly ash concrete expansion agent is characterized in that, proportioning raw materials is by weight: 30 parts of aluminosulfate cements, 30 parts of I level flyash, 30 parts of phosphogypsums, 5 parts of calcium lime powders, 5 parts of alum stone flours; All make fineness all reach 180 mesh sieves before raw material is weighed to tail over through pre-treatment＜1%, by behind the proportioning computation weigh various raw materials being mixed, check, pack finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910227541A CN101759385A (en) | 2009-12-18 | 2009-12-18 | Fly ash concrete expansion agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910227541A CN101759385A (en) | 2009-12-18 | 2009-12-18 | Fly ash concrete expansion agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759385A true CN101759385A (en) | 2010-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910227541A Pending CN101759385A (en) | 2009-12-18 | 2009-12-18 | Fly ash concrete expansion agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759385A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219430A (en) * | 2011-04-08 | 2011-10-19 | 衡阳市山王建材实业有限责任公司 | High performance concrete inorganic environmental waterproof expanding agent and preparation method thereof |
| CN102491669A (en) * | 2011-11-14 | 2012-06-13 | 南京瑞迪高新技术有限公司 | Special plastic expansion agent for cement-based grouting material and preparation method of same |
| CN103755193A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Concrete composite expanding agent |
| CN103979815A (en) * | 2014-05-27 | 2014-08-13 | 长沙矿山研究院有限责任公司 | Filled body swelling agent for filling mining and preparation method thereof |
| CN104193266A (en) * | 2014-08-21 | 2014-12-10 | 桂林华越环保科技有限公司 | Cement expansive material with harmonious coordinated development of expansion rate and concrete strength |
| CN104310845A (en) * | 2014-09-29 | 2015-01-28 | 湖州丰盛新材料有限公司 | Self-feeding water type cement expansive agent and preparation method thereof |
-
2009
- 2009-12-18 CN CN200910227541A patent/CN101759385A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219430A (en) * | 2011-04-08 | 2011-10-19 | 衡阳市山王建材实业有限责任公司 | High performance concrete inorganic environmental waterproof expanding agent and preparation method thereof |
| CN102491669A (en) * | 2011-11-14 | 2012-06-13 | 南京瑞迪高新技术有限公司 | Special plastic expansion agent for cement-based grouting material and preparation method of same |
| CN102491669B (en) * | 2011-11-14 | 2012-12-26 | 南京瑞迪高新技术有限公司 | Special plastic expansion agent for cement-based grouting material and preparation method of same |
| CN103755193A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Concrete composite expanding agent |
| CN103979815A (en) * | 2014-05-27 | 2014-08-13 | 长沙矿山研究院有限责任公司 | Filled body swelling agent for filling mining and preparation method thereof |
| CN103979815B (en) * | 2014-05-27 | 2016-01-06 | 长沙矿山研究院有限责任公司 | A kind of obturator swelling agent for mining with stowing and preparation method thereof |
| CN104193266A (en) * | 2014-08-21 | 2014-12-10 | 桂林华越环保科技有限公司 | Cement expansive material with harmonious coordinated development of expansion rate and concrete strength |
| CN104310845A (en) * | 2014-09-29 | 2015-01-28 | 湖州丰盛新材料有限公司 | Self-feeding water type cement expansive agent and preparation method thereof |
| CN104310845B (en) * | 2014-09-29 | 2015-11-04 | 湖州丰盛新材料有限公司 | A kind of self-supporting ability of swimming cement expansive material and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |