Method for preparing novel composite concrete air entraining agent

A composite and concrete technology, applied in the field of concrete preparation, can solve the problems of low flow slump retention performance of concrete, large bubble diameter, short bubble stabilization time, etc., and achieves excellent compounding effect, small bubble diameter, and long bubble stabilization time. Effect

Inactive Publication Date: 2019-08-09
湖南加美乐素新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditionally, the concrete air-entraining agent generally uses triangular saponin air-entraining agent, which has poor effect and has the disadvantages of low foaming rate, large bubble diameter, and short foam stabilization time. The performance is low, so it cannot meet the needs of users

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of a novel composite air-entraining agent for concrete. The raw materials in parts by weight include: 5% of lauryl dimethoxyamine, 5% of ethoxylated alkyl sodium sulfate, 5% of sodium rosinate, coconut oil Diethanolamide 5%, the balance is water.

[0031] The preparation method of the preparation method of described novel composite concrete air-entraining agent, concrete steps are as follows:

[0032] (1) take each raw material according to parts by weight;

[0033] (2) water is added in the reactor and heated;

[0034] (3) When the temperature of the water in the reactor in step (2) rises to 60-80 degrees, first sodium abietate is dropped into the reactor while stirring while feeding and dissolving;

[0035] (4) After the sodium rosinate added in step (3) is completely dissolved, put coconut oil diethanolamide and AES into the reaction kettle to stir and mix, and the product can be obtained after mechanical stirring evenly. The reaction used in s...

Embodiment 2

[0037] A preparation method of a novel composite air-entraining agent for concrete. The raw materials in parts by weight include: 7% dodecyl dimethoxyamine, 7% sodium ethoxylated alkyl sulfate, 6% sodium rosinate, coconut oil Diethanolamide 7%, the balance is water.

[0038] The preparation method of the preparation method of described novel composite concrete air-entraining agent, concrete steps are as follows:

[0039] (1) take each raw material according to parts by weight;

[0040] (2) water is added in the reactor and heated;

[0041] (3) When the temperature of the water in the reactor in step (2) rises to 60-80 degrees, first sodium abietate is dropped into the reactor while stirring while feeding and dissolving;

[0042] (4) After the sodium rosinate added in step (3) is completely dissolved, put coconut oil diethanolamide and AES into the reaction kettle to stir and mix, and the product can be obtained after mechanical stirring evenly. The reaction used in step (2) ...

Embodiment 3

[0044] A preparation method of a novel composite air-entraining agent for concrete. The raw materials in parts by weight include: 10% of lauryl dimethoxyamine, 10% of ethoxylated alkyl sodium sulfate, 8% of sodium rosinate, coconut oil Diethanolamide 10%, the balance is water.

[0045] The preparation method of the preparation method of described novel composite concrete air-entraining agent, concrete steps are as follows:

[0046] (1) take each raw material according to parts by weight;

[0047] (2) water is added in the reactor and heated;

[0048] (3) When the temperature of the water in the reactor in step (2) rises to 60-80 degrees, first sodium abietate is dropped into the reactor while stirring while feeding and dissolving;

[0049] (4) After the sodium rosinate added in step (3) is completely dissolved, put coconut oil diethanolamide and AES into the reaction kettle to stir and mix, and the product can be obtained after mechanical stirring evenly. The reaction used i...

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PUM

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Abstract

The invention discloses a method for preparing a novel composite concrete air entraining agent. The novel composite concrete air entraining agent is prepared from 5%-15% of dodecyl dimethylamine, 5%-15% of sodium ethoxylated alkyl sulfate, 5%-10% of sodium abietate, 5%-15% of coconut oil diethanolamide and the balance water. According to the method, the materials with different components for airentraining, bubble stabilizing, plastification and the like are compounded to be used for perfecting the application performance of concrete, the novel composite concrete air entraining agent is liquid, can be dissolved in water, and can be diluted into the liquid with the concentration of 1.5%-2.0% in a stirring station to be automatically metered and added. The novel composite concrete air entraining agent can be used when a finished additive is compounded, the compounding performance of the product and other concrete additives is good, the amount of admixture is small, the compounding effect is superior to that of a deltonin air entraining agent, the surface tension of a solution can be effectively reduced, and sealed and independent bubbles are generated. The advantages of being high in foaming rate, small in bubble diameter and bubble stabilizing time are achieved, and the work performance of the concrete and the concrete flowing slump loss resistant performance can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a preparation method of a novel composite air-entraining agent for concrete. Background technique [0002] Concrete, referred to as "concrete (tóng)": refers to the general designation of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering, is one of the most important contemporary civil engineering materials. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/34C04B103/30
CPCC04B40/0039C04B2103/304C04B24/12C04B24/16C04B24/124C04B24/34
Inventor 王伟龙威
Owner 湖南加美乐素新材料股份有限公司
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