CN109455970A - A kind of concrete air-entrainer and preparation method thereof - Google Patents
A kind of concrete air-entrainer and preparation method thereof Download PDFInfo
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- CN109455970A CN109455970A CN201811551817.2A CN201811551817A CN109455970A CN 109455970 A CN109455970 A CN 109455970A CN 201811551817 A CN201811551817 A CN 201811551817A CN 109455970 A CN109455970 A CN 109455970A
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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
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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
- 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
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
It the invention discloses a kind of concrete air-entrainer, is made by the raw material of following parts by weight: 10-15 parts of sodium alkyl benzene sulfonate, 2-3 parts of lauryl sodium sulfate, 3-5 parts of aminotriacetic acid sodium, 0.5-1.5 parts of Lauryl Alcohol ester, 4-6 parts of disodium ethylene diamine tetraacetate, 1-1.5 parts of tetramethyl-ammonium iodide, 5-9 parts of poly carboxylic acid series water reducer, 0.3-0.5 parts of diethylene glycol monobutyl ether, 1-1.8 parts of Cocoamidopropyl betaine, 1-1.6 parts of aluminium magnesium silicate inorganic gel, 0.2-0.4 parts of anhydrous sodium pyrophosphate, 30-40 parts of water.The invention also discloses the preparation methods of the concrete air-entrainer.Concrete air-entrainer performance of the present invention is stablized, and is effectively improved the bubble stability of fresh concrete, significantly improves concrete strength, improves concrete workability, adaptable with various concrete, stable storing good with the plyability of other additives.
Description
Technical field
The invention belongs to building concrete additive technical fields, and in particular to a kind of concrete air-entrainer and its preparation side
Method.
Background technique
A certain amount of air entraining agent is carefully used in concrete works, can be generated in fresh concrete a certain amount of micro-
Thin round sealed bubble, this reduces the isolation and bleeding of mix to mobility, the workability for improving concrete, improves coagulation
The uniformity of soil, durability (impervious, frost resistance) are all highly beneficial.Air entraining agent can also reduce additive and concrete
Cost.The research and application of excellent air entraining agent are the needs and certainty that China's concrete and its additive develop, air entraining agent
Exploitation, promotion and application are of far-reaching significance, should be the indispensable additives of Future Development high performance concrete.
Currently, there are many type of concrete air-entrainer, there are anion active agent, cationic active agent, tween
With the types such as bi ion active agent, what is be most widely used is the air entraining agent based on anion active agent, such as has rosin
Class, alkyl benzene sulfonate and other types.However, the air entraining agent of single substance has biggish limitation in terms of service performance
And deficiency, it can not comprehensively improve the performance of concrete.The air entraining agent bleed effect of some single substances is preferable, but introduce
Bubble is not fine and smooth, uniform stable micro-bubble, 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 single substances introduces is preferable, but its bleed effect is general, can not introduce enough micro-
Minute bubbles, such air entraining agent can not improve the endurance quality of concrete significantly.
Summary of the invention
The present invention provides a kind of air entraining agents for concrete, are effectively improved the bubble stability of fresh concrete, show
It writes and improves concrete strength, improves concrete workability.
The present invention also provides the preparation methods of the concrete air-entrainer.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 10-15 parts of sodium alkyl benzene sulfonate, dodecyl sulphur
Sour sodium 2-3 parts, 3-5 parts of aminotriacetic acid sodium, 0.5-1.5 parts of Lauryl Alcohol ester, 4-6 parts of disodium ethylene diamine tetraacetate, tetramethyl
1-1.5 parts of ammonium iodide, 5-9 parts of poly carboxylic acid series water reducer, 0.3-0.5 parts of diethylene glycol monobutyl ether, Cocoamidopropyl betaine
1-1.8 parts, 1-1.6 parts of aluminium magnesium silicate inorganic gel, 0.2-0.4 parts of anhydrous sodium pyrophosphate, 30-40 parts of water.
Preferably, a kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, ten
2.5 parts of sodium dialkyl sulfate, 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, tetramethyl iodine
Change 1.2 parts of ammonium, 7 parts of poly carboxylic acid series water reducer, 0.4 part of diethylene glycol monobutyl ether, 1.4 parts of Cocoamidopropyl betaine, silicic acid
1.3 parts of magnalium inorganic gel, 0.3 part of anhydrous sodium pyrophosphate, 35 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, high-speed stirred 5-10min obtains B
Solution；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
100-200r/min stirs 2-4min；B solution is added to wherein again, high-speed stirred 5-10min is ultrasonically treated 5min afterwards, obtains mixed
Solidifying soil air entraining agent.
Described, the revolving speed of high-speed stirred is 400-600r/min.
Described, the power of ultrasonic treatment is 220-280w, frequency 45Hz.
In the present invention, sodium alkyl benzene sulfonate and lauryl sodium sulfate are with good surface-active, foaming capacity
It is good, the bubble that size is reasonably distributed is introduced in concrete, group can be aligned in walls, reduce bubble chamber film
Low-surface-energy drops in solution-air surface tension, significantly improves the workability of concrete, and then improve the intensity of concrete.Three second of amino
After sour sodium and disodium ethylene diamine tetraacetate are dissolved in water, form a large amount of carboxyl and hydroxyl is adsorbed on cement particle surface, reduce bone
Expect intergranular frictional resistance, accelerates its dissociation and aquation, inhibit bleeding, improve the workability of concrete mix.12 carbon
Alcohol ester can increase the viscosity and elasticity of walls, maintain the stability of bubble in concrete.Tetramethyl-ammonium iodide molecular orientation row
It is listed on liquid-vapor interface, on the one hand forms unimolecule adsorbent thin film on concrete particle surface, it is direct between reduction solid particle
Contact area improves the workability of concrete, on the other hand significantly reduces the surface tension of solution, increases concrete mixing process
In bubbles volume, and then reduce concrete mixing water consumption.Diethylene glycol monobutyl ether and Cocoamidopropyl betaine have compared with
Good bleed and foam stabilizing effect is adsorbed on the bubble inner surface of sodium alkyl benzene sulfonate and lauryl sodium sulfate generation, increases bubble
Foam viscosity and elastic strength promote hydrated cementitious, stablize bubble structure.Aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are mutual
Cooperation disperses fine particle, makes its abundant aquation, reduces water-cement ratio, and can stablize bubble, make bubble it is stable be dispersed in it is mixed
Solidifying soil.
Beneficial effects of the present invention: concrete air-entrainer performance of the present invention is stablized, and the bubble of fresh concrete is effectively improved
Stability significantly improves concrete strength, improves concrete workability, good with the plyability of other additives, with various coagulations
Adaptable, the stable storing of soil.
Specific embodiment
Below with reference to embodiment, the invention will be further described.
Poly carboxylic acid series water reducer used in the present invention is powder.
Embodiment 1
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, it is 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 1.2 parts of tetramethyl-ammonium iodide, poly-
7 parts of carboxylic acid water reducing agent, 0.4 part of diethylene glycol monobutyl ether, 1.4 parts of Cocoamidopropyl betaine, aluminium magnesium silicate inorganic gel
1.3 parts, 0.3 part of anhydrous sodium pyrophosphate, 35 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, it is molten to obtain B by high-speed stirred 7min
Liquid；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
150r/min stirs 3min；B solution is added to wherein again, high-speed stirred 8min is ultrasonically treated 5min afterwards, obtains concrete bleed
Agent.
Described, the revolving speed of high-speed stirred is 500r/min.
Described, the power of ultrasonic treatment is 240w, frequency 45Hz.
Embodiment 2
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 14 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, it is 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 1.1 parts of tetramethyl-ammonium iodide, poly-
8 parts of carboxylic acid water reducing agent, 0.4 part of diethylene glycol monobutyl ether, 1.2 parts of Cocoamidopropyl betaine, aluminium magnesium silicate inorganic gel
1.5 parts, 0.3 part of anhydrous sodium pyrophosphate, 33 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, it is molten to obtain B by high-speed stirred 9min
Liquid；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
150r/min stirs 3min；B solution is added to wherein again, high-speed stirred 6min is ultrasonically treated 5min afterwards, obtains concrete bleed
Agent.
Described, the revolving speed of high-speed stirred is 500r/min.
Described, the power of ultrasonic treatment is 260w, frequency 45Hz.
Embodiment 3
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 12 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 part, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 1.3 parts of tetramethyl-ammonium iodide, is gathered 4 parts of aminotriacetic acid sodium
6 parts of carboxylic acid water reducing agent, 0.4 part of diethylene glycol monobutyl ether, 1.6 parts of Cocoamidopropyl betaine, aluminium magnesium silicate inorganic gel
1.2 parts, 0.3 part of anhydrous sodium pyrophosphate, 38 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, it is molten to obtain B by high-speed stirred 6min
Liquid；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
150r/min stirs 3min；B solution is added to wherein again, high-speed stirred 9min is ultrasonically treated 5min afterwards, obtains concrete bleed
Agent.
Described, the revolving speed of high-speed stirred is 500r/min.
Described, the power of ultrasonic treatment is 260w, frequency 45Hz.
Embodiment 4
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 10 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
3 parts, it is 5 parts of aminotriacetic acid sodium, 0.5 part of Lauryl Alcohol ester, 4 parts of disodium ethylene diamine tetraacetate, 1.5 parts of tetramethyl-ammonium iodide, poly-
5 parts of carboxylic acid water reducing agent, 0.5 part of diethylene glycol monobutyl ether, 1.8 parts of Cocoamidopropyl betaine, aluminium magnesium silicate inorganic gel 1
Part, 0.2 part of anhydrous sodium pyrophosphate, 40 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, it is molten to obtain B by high-speed stirred 5min
Liquid；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
200r/min stirs 4min；B solution is added to wherein again, high-speed stirred 10min is ultrasonically treated 5min afterwards, obtains concrete bleed
Agent.
Described, the revolving speed of high-speed stirred is 400r/min.
Described, the power of ultrasonic treatment is 280w, frequency 45Hz.
Embodiment 5
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 15 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2 parts, 3 parts of aminotriacetic acid sodium, 1.5 parts of Lauryl Alcohol ester, 6 parts of disodium ethylene diamine tetraacetate, 1 part of tetramethyl-ammonium iodide, poly- carboxylic
9 parts of sour based water reducer, 0.3 part of diethylene glycol monobutyl ether, 1 part of Cocoamidopropyl betaine, aluminium magnesium silicate inorganic gel 1.6
Part, 0.4 part of anhydrous sodium pyrophosphate, 30 parts of water.
Described, poly carboxylic acid series water reducer is the poly carboxylic acid series water reducer of commercially available water-reducing rate >=25%.
A kind of preparation method of concrete air-entrainer, is as made from following steps:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, it is molten to obtain B by high-speed stirred 10min
Liquid；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
100r/min stirs 2min；B solution is added to wherein again, high-speed stirred 5min is ultrasonically treated 5min afterwards, obtains concrete bleed
Agent.
Described, the revolving speed of high-speed stirred is 600r/min.
Described, the power of ultrasonic treatment is 220w, frequency 45Hz.
Comparative example 1
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, 1 part of Lauryl Alcohol ester, 1.2 parts of tetramethyl-ammonium iodide, 7 parts of poly carboxylic acid series water reducer, 0.4 part of diethylene glycol monobutyl ether,
1.4 parts of Cocoamidopropyl betaine, 1.3 parts of aluminium magnesium silicate inorganic gel, 0.3 part of anhydrous sodium pyrophosphate, 35 parts of water.
Remaining is the same as embodiment 1.
Comparative example 2
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 7 parts of poly carboxylic acid series water reducer, two
0.4 part of ethylene glycol monobutyl ether, 1.4 parts of Cocoamidopropyl betaine, 1.3 parts of aluminium magnesium silicate inorganic gel, anhydrous sodium pyrophosphate
0.3 part, 35 parts of water.
Remaining is the same as embodiment 1.
Comparative example 3
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, it is 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 1.2 parts of tetramethyl-ammonium iodide, poly-
7 parts of carboxylic acid water reducing agent, 1.3 parts of aluminium magnesium silicate inorganic gel, 0.3 part of anhydrous sodium pyrophosphate, 35 parts of water.
Remaining is the same as embodiment 1.
Comparative example 4
A kind of concrete air-entrainer is made by the raw material of following parts by weight: 13 parts of sodium alkyl benzene sulfonate, lauryl sodium sulfate
2.5 parts, it is 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, 5 parts of disodium ethylene diamine tetraacetate, 1.2 parts of tetramethyl-ammonium iodide, poly-
7 parts of carboxylic acid water reducing agent, 0.4 part of diethylene glycol monobutyl ether, 1.4 parts of Cocoamidopropyl betaine, 35 parts of water.
Remaining is the same as embodiment 1.
Performance test
Concrete air-entrainer prepared by embodiment 1-5 and comparative example 1-4 is provided according to GB8076-2008 " concrete admixture "
Water-reducing rate test method, air content as defined in GB/T50080-2002 " Standard for test methods of properties of ordinary concrete mixture standard "
Relatively durable property index as defined in test method, GBJ82-1985 " Standard for test methods of longterm performance and durability of ordinary concrete "
Test method detects air content, relatively durable property index (200 after water-reducing rate, the initial air content of concrete, 60min respectively
It is secondary), concrete strength, mean air bubble diameter and bubble gap factor.The volume of concrete air-entrainer is cementitious material quality
0.08‰.The performance test results are as shown in table 1.
1 the performance test results of table
As shown in Table 1, air content after the concrete water-reducing ratio of embodiment 1-5 air entraining agent, initial air content, 60min, opposite is used
Durability index and concrete strength are apparently higher than the concrete using comparative example 1-4 air entraining agent, use embodiment 1-5 air entraining agent
Concrete mean air bubble diameter and bubble gap factor be significantly lower than the concrete using comparative example 1-4 air entraining agent, illustrate this
It is beneficial the bubble of small size that the bubble that invention concrete air-entrainer introduces is more, this is to the raising intensity of concrete and resistance to
Long property is extremely important.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of concrete air-entrainer, which is characterized in that be to be made by the raw material of following parts by weight: sodium alkyl benzene sulfonate 10-15
Part, 2-3 parts of lauryl sodium sulfate, 3-5 parts of aminotriacetic acid sodium, 0.5-1.5 parts of Lauryl Alcohol ester, disodium ethylene diamine tetraacetate
4-6 parts, 1-1.5 parts of tetramethyl-ammonium iodide, 5-9 parts of poly carboxylic acid series water reducer, 0.3-0.5 parts of diethylene glycol monobutyl ether, cocounut oil acyl
1-1.8 parts of amine propyl betaine, 1-1.6 parts of aluminium magnesium silicate inorganic gel, 0.2-0.4 parts of anhydrous sodium pyrophosphate, 30-40 parts of water.
2. concrete air-entrainer according to claim 1, which is characterized in that be to be made by the raw material of following parts by weight: alkyl
13 parts of benzene sulfonic acid sodium salt, 2.5 parts of lauryl sodium sulfate, 4 parts of aminotriacetic acid sodium, 1 part of Lauryl Alcohol ester, ethylenediamine tetra-acetic acid two
5 parts of sodium, 1.2 parts of tetramethyl-ammonium iodide, 7 parts of poly carboxylic acid series water reducer, 0.4 part of diethylene glycol monobutyl ether, cocamidopropyl propyl amide sweet tea
1.4 parts of dish alkali, 1.3 parts of aluminium magnesium silicate inorganic gel, 0.3 part of anhydrous sodium pyrophosphate, 35 parts of water.
3. concrete air-entrainer according to claim 1, which is characterized in that the poly carboxylic acid series water reducer is commercially available water-reducing rate
>=25% poly carboxylic acid series water reducer.
4. the preparation method of concrete air-entrainer described in a kind of any one of claim 1-3, which is characterized in that be by following step
It is rapid obtained:
1) sodium alkyl benzene sulfonate, lauryl sodium sulfate and Cocoamidopropyl betaine are added in 30 DEG C of water of 1/2 amount, is stirred
It mixes to being completely dissolved, is cooled to room temperature, add aminotriacetic acid sodium and disodium ethylene diamine tetraacetate, be uniformly mixed, it is molten to obtain A
Liquid；
2) aluminium magnesium silicate inorganic gel and anhydrous sodium pyrophosphate are added in the water of remaining 1/2 amount, high-speed stirred 5-10min obtains B
Solution；
3) Lauryl Alcohol ester, tetramethyl-ammonium iodide, poly carboxylic acid series water reducer and diethylene glycol monobutyl ether are added in solution A,
100-200r/min stirs 2-4min；B solution is added to wherein again, high-speed stirred 5-10min is ultrasonically treated 5min afterwards, obtains mixed
Solidifying soil air entraining agent.
5. the preparation method of concrete air-entrainer according to claim 4, which is characterized in that the revolving speed of the high-speed stirred is
400-600r/min。
6. the preparation method of concrete air-entrainer according to claim 4, which is characterized in that the power of the ultrasonic treatment is
220-280w, frequency 45Hz.
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| WO2022090636A1 (en) * | 2020-10-29 | 2022-05-05 | Patrick Hazera | Moistened fibrous or powder composition |
| FR3115783A1 (en) * | 2020-10-29 | 2022-05-06 | Patrick HAZERA | WET FIBROUS OR PULVERULENT COMPOSITION |
| CN112592098A (en) * | 2020-12-24 | 2021-04-02 | 泰安市同达建材有限公司 | Concrete modifying flexibilizer and preparation method thereof |
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