CN106116220B - Concrete air-entrainer - Google Patents
Concrete air-entrainer Download PDFInfo
- Publication number
- CN106116220B CN106116220B CN201610471716.9A CN201610471716A CN106116220B CN 106116220 B CN106116220 B CN 106116220B CN 201610471716 A CN201610471716 A CN 201610471716A CN 106116220 B CN106116220 B CN 106116220B
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- parts
- concrete
- entrainer
- air
- concrete air
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
Abstract
The invention belongs to technical field of concrete additives, more particularly to a kind of concrete air-entrainer, it is made up of the raw material of following parts by weight：40~60 parts of colophony powder, 10~18 parts of sodium hydroxide, 6~16 parts of sulfuric acid, 8~18 parts of ethylene glycol, 5~13 parts of bisphenol-A, 7~15 parts of pentaerythrite, 90~130 parts of water.When concrete air-entrainer of the present invention is applied in concrete, bubble is stable, and size is suitable, is evenly distributed, additionally it is possible to improves the intensity of concrete, improves the workability of concrete.
Description
Technical field
The invention belongs to technical field of concrete additives, more particularly to a kind of concrete air-entrainer.
Background technology
Concrete air-entrainer can be effectively improved the workability of concrete, reduce bleeding performance, while substantially improve mixed
The freeze proof anti-permeability performance of soil is coagulated, is suitable for the important engineering concrete structure such as airport, harbor work and bridge, is spread for severe cold area
Concrete Highway, the bridge of cryosel are even more important.In addition, usually mixed in the configuration of these concrete using flyash as activity
And material, to improve the workability of fresh concrete, and reduce the warm contracting cracking trend of mass concrete.But application is found, portion
The higher flyash of loss on ignition is divided usually to reduce the bleed effect of air entraining agent because containing unburned carbon granules.
In commerical ready-mixed concrete, the high-quality air entraining agent of performance, plastic concrete and maturing are remarkably improved
Properties, and the cost of additive and concrete can also be reduced.The research and application of excellent air entraining agent are China's coagulations
Soil and its needs and certainty of additive development, exploitation, the promotion and application of air entraining agent are of far-reaching significance, should be the high property of Future Development
The indispensable additive of energy concrete.But there is unreasonable introducing bubble structure, skewness, bubble not more in existing air entraining agent
Stably, the deficiencies of size is improper, it is impossible to the workability of effective fresh concrete, and improve the durability of maturing,
It is poor with the plyability of other concrete admixtures.
The content of the invention
The technical problems to be solved by the invention are to provide concrete air-entrainer, and when being applied in concrete, bubble is stable,
Size is suitable, is evenly distributed, additionally it is possible to improves the intensity of concrete, improves the workability of concrete.
To achieve the above object, technical scheme to be solved by this invention is：
The present invention provides concrete air-entrainer, is made up of the raw material of following parts by weight：40~60 parts of colophony powder, sodium hydroxide
10~18 parts, 6~16 parts of sulfuric acid, 8~18 parts of ethylene glycol, 5~13 parts of bisphenol-A, 7~15 parts of pentaerythrite, 90~130 parts of water.
Preferably, concrete air-entrainer of the present invention, it is made up of the raw material of following parts by weight：50 parts of colophony powder, hydrogen
14 parts of sodium oxide molybdena, 11 parts of sulfuric acid, 13 parts of ethylene glycol, 9 parts of bisphenol-A, 11 parts of pentaerythrite, 110 parts of water.
Preferably, colophony powder particle diameter of the present invention is 2~10 μm.In the raw material of the present invention, colophony powder can be it is special,
First, two, three, four or Pyatyi, but to save composition, the present invention preferably one, two, three common rosin powder, use common rosin
The air entraining agent that powder is prepared has reached fabulous performance.The present invention is significantly overcome from the colophony powder that particle diameter is 2~10 μm
Liquid air entraining agent stores the deficiency of rosin precipitation for a long time, while improves reaction efficiency, significantly improves the adaptability with concrete, with
And the plyability with other concrete admixtures, particularly complete that sour water reducer is compound, and bleed performance is good with poly-, it is concrete and easy
Property and excellent strength.
Preferably, the mass concentration of sodium hydroxide of the present invention is 30~40%.Under the sodium hydroxide concentration, prepare
The air entraining agent excellent performance gone out, bubble is stable, size is suitable, the air entraining agent stable storing prepared, stores for a long time without bright
Aobvious precipitation.
Preferably, the mass concentration of sulfuric acid of the present invention is 20~40%.Under the concentration, what is prepared draws sulfuric acid
The adaptability of gas agent and concrete is good, and can significantly improve the plyability with other additives, the air entraining agent addition prepared
Bubble structure is reasonable during into concrete, is evenly distributed.
The air entraining agent of the present invention is in the application of concrete, and volume is 0.01%~0.05%, by weight, if volume
More than 0.05%, place and have precipitation generation for a period of time, if less than 0.01%, bleed effect is poor, or even does not reach addition
The effect of air entraining agent.
Compared with prior art, the beneficial effects of the present invention are：
1st, concrete air-entrainer of the invention be added in concrete bubble structure rationally, be evenly distributed, bubble is stable, big
Small suitable, when being applied in concrete, standing the air content after a hour reduces by 4~9%, and air content loss is smaller, has
Excellent foam stabilizing effect.
2nd, bleeding rate significantly reduces, and water-reducing rate significantly improves, and through experiment, compared with normal concrete, water-reducing rate is more than
8%, bleeding rate reduces by 40%.
3rd, there are good cryoprotective effects, through measurement, freeze thawing resistance cycle-index is up to more than 250 times.
4th, the workability of concrete is significantly improved, adaptability with various concrete good with the plyability of other additives
By force, stable storing, deposit 18 months, no obvious sediment.
5th, while having good air-entraining effect, the rupture strength of concrete can also improve, and through experiment, be mixed with benchmark
Solidifying soil is compared, and when air content is not more than 5%, concrete flexural strength can improve 18~26%, 7d and 28d compressive strength rates are equal
More than 95%.
6th, concrete air-entrainer of the invention is to the corrosion-free effect of reinforcing bar.
Embodiment
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Embodiment 1
Concrete air-entrainer, it is made up of the raw material of following parts by weight：60 parts of colophony powder (particle diameter is 2 μm), sodium hydroxide (matter
It is 30%) 18 parts to measure concentration, 16 parts of sulfuric acid (mass concentration 20%), 8 parts of ethylene glycol, 13 parts of bisphenol-A, 7 parts of pentaerythrite,
130 parts of water.
The preparation method of above-mentioned concrete air-entrainer is：Whole raw materials are mixed, stir 30min, are put into reactor, are risen
High-temperature is incubated 50min to 85 DEG C, you can obtains.
Embodiment 2
Concrete air-entrainer, it is made up of the raw material of following parts by weight：55 parts of colophony powder (particle diameter is 4 μm), sodium hydroxide (matter
It is 32%) 16 parts to measure concentration, 14 parts of sulfuric acid (mass concentration 25%), 11 parts of ethylene glycol, 11 parts of bisphenol-A, 9 parts of pentaerythrite,
120 parts of water.
The preparation method of above-mentioned concrete air-entrainer is：Whole raw materials are mixed, stir 30min, are put into reactor, are risen
High-temperature is incubated 50min to 85 DEG C, you can obtains.
Embodiment 3
Concrete air-entrainer, it is made up of the raw material of following parts by weight：50 parts of colophony powder (particle diameter is 6 μm), sodium hydroxide (matter
It is 35%) 14 parts to measure concentration, 11 parts of sulfuric acid (mass concentration 30%), 13 parts of ethylene glycol, 9 parts of bisphenol-A, 11 parts of pentaerythrite,
110 parts of water.
The preparation method of above-mentioned concrete air-entrainer is：Whole raw materials are mixed, stir 30min, are put into reactor, are risen
High-temperature is incubated 50min to 85 DEG C, you can obtains.
Embodiment 4
Concrete air-entrainer, it is made up of the raw material of following parts by weight：45 parts of colophony powder (particle diameter is 8 μm), sodium hydroxide (matter
It is 38%) 12 parts to measure concentration, 9 parts of sulfuric acid (mass concentration 35%), 13 parts of ethylene glycol, 7 parts of bisphenol-A, 13 parts of pentaerythrite,
100 parts of water.
The preparation method of above-mentioned concrete air-entrainer is：Whole raw materials are mixed, stir 30min, are put into reactor, are risen
High-temperature is incubated 50min to 85 DEG C, you can obtains.
Embodiment 5
Concrete air-entrainer, it is made up of the raw material of following parts by weight：40 parts of colophony powder (particle diameter is 10 μm), sodium hydroxide
10 parts of (mass concentration 40%), 6 parts of sulfuric acid (mass concentration 40%), 18 parts of ethylene glycol, 5 parts of bisphenol-A, pentaerythrite 15
Part, 90 parts of water.
The preparation method of above-mentioned concrete air-entrainer is：Whole raw materials are mixed, stir 30min, are put into reactor, are risen
High-temperature is incubated 50min to 85 DEG C, you can obtains.
Claims (5)
1. concrete air-entrainer, it is characterised in that be made up of the raw material of following parts by weight：40~60 parts of colophony powder, sodium hydroxide
10~18 parts, 6~16 parts of sulfuric acid, 8~18 parts of ethylene glycol, 5~13 parts of bisphenol-A, 7~15 parts of pentaerythrite, 90~130 parts of water.
2. concrete air-entrainer according to claim 1, it is characterised in that be made up of the raw material of following parts by weight：Rosin
50 parts of powder, 14 parts of sodium hydroxide, 11 parts of sulfuric acid, 13 parts of ethylene glycol, 9 parts of bisphenol-A, 11 parts of pentaerythrite, 110 parts of water.
3. concrete air-entrainer according to claim 1 or 2, it is characterised in that：The colophony powder particle diameter is 2~10 μm.
4. concrete air-entrainer according to claim 1 or 2, it is characterised in that：The mass concentration of the sodium hydroxide is
30~40%.
5. concrete air-entrainer according to claim 1 or 2, it is characterised in that：The mass concentration of the sulfuric acid be 20~
40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471716.9A CN106116220B (en) | 2016-06-24 | 2016-06-24 | Concrete air-entrainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471716.9A CN106116220B (en) | 2016-06-24 | 2016-06-24 | Concrete air-entrainer |
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| Publication Number | Publication Date |
|---|---|
| CN106116220A CN106116220A (en) | 2016-11-16 |
| CN106116220B true CN106116220B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610471716.9A Active CN106116220B (en) | 2016-06-24 | 2016-06-24 | Concrete air-entrainer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927756B (en) * | 2017-04-11 | 2019-08-13 | 南宁市嘉旺水泥制品有限公司 | A kind of regeneration concrete |
| CN108569858A (en) * | 2018-04-25 | 2018-09-25 | 临泉县凯晟建筑工程有限公司 | A kind of special air entraining agent of stable structure type cement |
| CN108585739A (en) * | 2018-08-02 | 2018-09-28 | 遵义市旭辉新型节能建材有限公司 | A kind of New Type Aerated Concrete mortar and preparation method thereof |
| CN113233844A (en) * | 2021-06-11 | 2021-08-10 | 天津宇善建筑材料有限公司 | Preparation method of concrete |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807333A (en) * | 2006-02-16 | 2006-07-26 | 江苏博特新材料有限公司 | Concrete air-entrainer |
| CN101333093A (en) * | 2008-08-05 | 2008-12-31 | 中国建筑材料科学研究总院 | Cement concrete air entraining agent and method for preparing same |
| CN104761177A (en) * | 2015-03-19 | 2015-07-08 | 杨帆 | Cement air entraining agent |
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2016
- 2016-06-24 CN CN201610471716.9A patent/CN106116220B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807333A (en) * | 2006-02-16 | 2006-07-26 | 江苏博特新材料有限公司 | Concrete air-entrainer |
| CN101333093A (en) * | 2008-08-05 | 2008-12-31 | 中国建筑材料科学研究总院 | Cement concrete air entraining agent and method for preparing same |
| CN104761177A (en) * | 2015-03-19 | 2015-07-08 | 杨帆 | Cement air entraining agent |
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| CN106116220A (en) | 2016-11-16 |
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