CN106116230A - Concrete composite air entraining agent - Google Patents
Concrete composite air entraining agent Download PDFInfo
- Publication number
- CN106116230A CN106116230A CN201610480949.5A CN201610480949A CN106116230A CN 106116230 A CN106116230 A CN 106116230A CN 201610480949 A CN201610480949 A CN 201610480949A CN 106116230 A CN106116230 A CN 106116230A
- Authority
- CN
- China
- Prior art keywords
- parts
- air entraining
- entraining agent
- concrete
- composite air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
Abstract
The invention belongs to technical field of concrete additives, particularly to a kind of concrete composite air entraining agent, it is made up of the raw material of following weight portion: coconut oil fatty acid monoethanolamide 20～40 parts, alkyl polyglucoside 15～35 parts, cetyltrimethylammonium hydroxide 18～32 parts, sodium carboxymethyl cellulose 5～18 parts.The concrete composite air entraining agent of the present invention can also preferably improve the intensity of concrete while introducing abundant bubble, and the bubble introduced is fine and smooth, and quality is good.
Description
Technical field
The invention belongs to technical field of concrete additives, particularly to a kind of concrete composite air entraining agent.
Background technology
Concrete air-entrainer can be effectively improved the workability of concrete, reduces bleeding performance, substantially improves mixed simultaneously
The freeze proof anti-permeability performance of solidifying soil, is suitable for the important engineering xoncrete structures such as airport, harbor work and bridge, spreads for severe cold area
The Concrete Highway of cryosel, bridge are even more important.Additionally, the configuration of these concrete usually uses flyash mix as activity
And material, to improve the workability of fresh concrete, and reduce the temperature contracting cracking trend of mass concrete.But application finds, portion
Divide the flyash that loss on ignition is higher because containing unburned carbon granules, usually reducing the bleed effect of air entraining agent.
At present, the kind of concrete air-entrainer is a lot, has anion active agent, cationic active agent, tween
With types such as bi ion active agents, be most widely used is the air entraining agent based on anion active agent, such as, have Colophonium
Class, alkyl benzene sulfonate and other types.But, the air entraining agent of one matter has bigger limitation in terms of serviceability
And deficiency, it is impossible to enough performances improving concrete all sidedly.The air entraining agent bleed effect of some one matter is preferable, but introduce
Bubble is not stable micro-bubble fine and smooth, the most even, and such air entraining agent can significantly reduce the performances such as the intensity of concrete；Have
The bubble quality that the air entraining agent of a little one matters introduces is preferable, but its bleed effect is general, it is impossible to enough introduce abundant micro-
Minute bubbles, such air entraining agent can not significantly increase the endurance quality of concrete.Therefore, kinds of surface active material
Composite air entraining agent becomes the study hotspot of new air entraining.
Summary of the invention
The technical problem to be solved is to provide concrete composite air entraining agent, and this composite air entraining agent introduces abundant
Bubble while can also preferably improve the intensity of concrete, and the bubble introduced is fine and smooth, and quality is good.
For achieving the above object, technical scheme to be solved by this invention is:
The present invention provides concrete composite air entraining agent, is made up of the raw material of following weight portion: coco-nut oil fatty acid monoethanol
Amide 20～40 parts, alkyl polyglucoside 15～35 parts, cetyltrimethylammonium hydroxide 18～32 parts, sodium carboxymethyl cellulose 5
～18 parts.
Preferably, concrete composite air entraining agent of the present invention, it is made up of the raw material of following weight portion: coconut oil fat
Acid single ethanol amide 25～35 parts, alkyl polyglucoside 20～30 parts, cetyltrimethylammonium hydroxide 21～29 parts, carboxymethyl is fine
Dimension element sodium 7～15 parts.
It is highly preferred that concrete composite air entraining agent of the present invention, it is made up of the raw material of following weight portion: Cortex cocois radicis oils and fats
Fat acid single ethanol amide 30 parts, alkyl polyglucoside 25 parts, cetyltrimethylammonium hydroxide 25 parts, sodium carboxymethyl cellulose 11
Part.
Alkyl polyglucoside in the present invention is synthesized by Renewable resource natural fat alcohol and glucose, be a kind of performance relatively
Comprehensively new non-ionic surfactants, it has the characteristic of conventional nonionic and anion surfactant concurrently, has high table
Ecological security that face is active, good and intermiscibility, be internationally recognized first-selection " green " functional surfactant.Itself and its
Its raw material one works, it is possible to increase the stability of bubble, introduces bubble abundant small and of uniform size, additionally it is possible to increase
The intensity of reinforced concrete.
Preferably, present invention additionally comprises poly-aspartate 3～11 weight portion.Poly-aspartate is a kind of artificial bionic synthesis
Water-soluble high-molecular substance, because of containing peptide bond and the construction features of carboxyl isoreactivity group, have extremely strong chelating, dispersion,
The effects such as absorption, and compatibility is splendid, and the workability that other material combination can improve concrete, and improves and concrete
Adaptability and compound with other additive, poly-aspartate can also adsorb at coconut oil fatty acid monoethanolamide, alkyl
The bubble surface that glucosides and cetyltrimethylammonium hydroxide produce, during stoping concrete immersion, moisture is inside bubble
Be impregnated with, make the moisture within bubble will not overfill, there is the effect of steady bubble.
It is highly preferred that present invention additionally comprises poly-aspartate 7 weight portion.
The sodium carboxymethyl cellulose of the present invention can increase bubble wall thickness and increase liquid phase medium viscosity, contributes to strengthening gas
Bubble stability, make bubble park at concrete, vibrate during be stable in the presence of inside concrete and be unlikely to assemble, ease
Dissipate.
The air entraining agent of the present invention is in the application of concrete, and volume is 0.008%～0.016%, by weight, if mixed
Amount is more than 0.016%, and placement a period of time has precipitation and generates, if less than 0.008%, and bleed weak effect, introduce bubble few,
Even do not reach the effect adding air entraining agent.
Compared to existing technology, the beneficial effects of the present invention is:
1, the concrete composite air entraining agent of invention can also preferably improve the strong of concrete while introducing abundant bubble
Degree, through test, compared with normal concrete, when air content is not more than 6%, concrete flexural strength can improve 25～34%,
7d and 28d compressive strength rate is all more than 94%.
2, the bubble introduced is fine and smooth, and quality is good, bubble parks at concrete, vibrate during be stable in the presence of in concrete
Portion and do not assemble or loss.
3, the Air Bubble Size introduced is uniform, stable, and in concrete during application, the air content after standing hour reduces
3～7%, air content loss is less, has the foam stabilizing effect of excellence.
4, there is good durability, compared with normal concrete, durability index is retained with the dynamic modulus of elasticity of 200 times
Value is calculated as 99%, and durability loss is less.
5, having good cryoprotective effects, through measuring, freeze thawing resistance cycle-index can reach 300 times.
6, bleeding rate significantly reduces, and water-reducing rate significantly improves, and through test, compared with normal concrete, water-reducing rate is more than
7%, bleeding rate reduces by 48%.
7, the concrete composite air entraining agent strong adaptability of the present invention, is suitable for various concrete, and additional with other concrete
Agent plyability is good.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but the invention is not limited in these embodiments.
Embodiment 1
Concrete composite air entraining agent, is made up (mix homogeneously) of the raw material of following weight portion: coco-nut oil fatty acid list
Glycollic amide 40 parts, alkyl polyglucoside 15 parts, cetyltrimethylammonium hydroxide 32 parts, sodium carboxymethyl cellulose 5 parts, poly-Radix Asparagi
Propylhomoserin 11 parts.
Embodiment 2
Concrete composite air entraining agent, is made up (mix homogeneously) of the raw material of following weight portion: coco-nut oil fatty acid list
Glycollic amide 25 parts, alkyl polyglucoside 30 parts, cetyltrimethylammonium hydroxide 21 parts, sodium carboxymethyl cellulose 15 parts, poly-sky
Winter propylhomoserin 3 parts.
Embodiment 3
Concrete composite air entraining agent, is made up (mix homogeneously) of the raw material of following weight portion: coco-nut oil fatty acid list
Glycollic amide 30 parts, alkyl polyglucoside 25 parts, cetyltrimethylammonium hydroxide 25 parts, sodium carboxymethyl cellulose 11 parts, poly-sky
Winter propylhomoserin 7 parts.
Embodiment 4
Concrete composite air entraining agent, is made up (mix homogeneously) of the raw material of following weight portion: coco-nut oil fatty acid list
Glycollic amide 35 parts, alkyl polyglucoside 20 parts, cetyltrimethylammonium hydroxide 29 parts, sodium carboxymethyl cellulose 7 parts, poly-Radix Asparagi
Propylhomoserin 11 parts.
Embodiment 5
Concrete composite air entraining agent, is made up (mix homogeneously) of the raw material of following weight portion: coco-nut oil fatty acid list
Glycollic amide 20 parts, alkyl polyglucoside 35 parts, cetyltrimethylammonium hydroxide 18 parts, sodium carboxymethyl cellulose 18 parts, poly-sky
Winter propylhomoserin 3 parts.
Claims (5)
1. concrete composite air entraining agent, it is characterised in that be made up of the raw material of following weight portion: coco-nut oil fatty acid monoethanol acyl
Amine 20～40 parts, alkyl polyglucoside 15～35 parts, cetyltrimethylammonium hydroxide 18～32 parts, sodium carboxymethyl cellulose 5～
18 parts.
Concrete composite air entraining agent the most according to claim 1, it is characterised in that be made up of the raw material of following weight portion:
Coconut oil fatty acid monoethanolamide 25～35 parts, alkyl polyglucoside 20～30 parts, cetyltrimethylammonium hydroxide 21～29
Part, sodium carboxymethyl cellulose 7～15 parts.
Concrete composite air entraining agent the most according to claim 1, it is characterised in that be made up of the raw material of following weight portion:
Coconut oil fatty acid monoethanolamide 30 parts, alkyl polyglucoside 25 parts, cetyltrimethylammonium hydroxide 25 parts, carboxymethyl cellulose
11 parts of sodium of element.
4. according to the concrete composite air entraining agent described in claims 1 to 3 any one, it is characterised in that: also include poly-Radix Asparagi
Propylhomoserin 3～11 weight portion.
Concrete composite air entraining agent the most according to claim 4, it is characterised in that: also include poly-aspartate 7 weight portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480949.5A CN106116230A (en) | 2016-06-24 | 2016-06-24 | Concrete composite air entraining agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480949.5A CN106116230A (en) | 2016-06-24 | 2016-06-24 | Concrete composite air entraining agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106116230A true CN106116230A (en) | 2016-11-16 |
Family
ID=57265738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610480949.5A Pending CN106116230A (en) | 2016-06-24 | 2016-06-24 | Concrete composite air entraining agent |
Country Status (1)
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| CN (1) | CN106116230A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133701A (en) * | 2018-07-27 | 2019-01-04 | 东莞市道滘金汤减水剂厂 | A kind of concrete micro-nano bubble air entraining agent and preparation method thereof |
| CN112250346A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Asphalt concrete pavement construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496525A (en) * | 2014-12-09 | 2015-04-08 | 江苏苏博特新材料股份有限公司 | Composite concrete air entraining agent, and preparation method and application thereof |
-
2016
- 2016-06-24 CN CN201610480949.5A patent/CN106116230A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496525A (en) * | 2014-12-09 | 2015-04-08 | 江苏苏博特新材料股份有限公司 | Composite concrete air entraining agent, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吕百龄: "《实用工业助剂全书》", 31 August 2001 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133701A (en) * | 2018-07-27 | 2019-01-04 | 东莞市道滘金汤减水剂厂 | A kind of concrete micro-nano bubble air entraining agent and preparation method thereof |
| CN112250346A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Asphalt concrete pavement construction method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
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