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Concrete glue reducing agent and preparation method thereof

A technology of glue reducing agent and concrete, applied in the field of concrete glue reducing agent and its preparation, can solve the problems of unstable strength of concrete, inability to effectively reduce the amount of cement, etc., to improve workability and volume stability, improve mechanical properties and densification The effect of reducing the amount of cement used

Active Publication Date: 2021-02-12
北京富瑞勒斯科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, after the concrete reducer in the prior art is added, the amount of cement cannot be effectively reduced, and at the same time, it will cause problems such as unstable concrete strength.

Method used

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  • Concrete glue reducing agent and preparation method thereof
  • Concrete glue reducing agent and preparation method thereof
  • Concrete glue reducing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a concrete glue reducer, which is prepared from the following raw materials:

[0044] Methallyl polyoxyethylene ether polycarboxylate water reducer, 18 parts by weight;

[0045] Diethanolamine, 8 parts by weight;

[0046] Polyvinyl alcohol, 0.5 parts by weight;

[0047] Carboxymethyl cellulose, 4 parts by weight;

[0048] Alkyl quaternary ammonium salt surfactant, 0.1 parts by weight;

[0049] Amino silicone oil, 0.5 parts by weight;

[0050] Water, 55 parts by weight.

[0051] The preparation method of concrete glue reducer described in the present embodiment, comprises the steps:

[0052] (1) Under heating conditions, add the methallyl polyoxyethylene ether polycarboxylate water reducer to water at 25°C, stir and mix thoroughly for 1 hour, and set aside;

[0053] (2) Add diethanolamine and polyvinyl alcohol to the mixture obtained in step (1), stir and react for 20 minutes and set aside;

[0054] (3) Get the alkyl quaternary ammonium sa...

Embodiment 2

[0057] This embodiment provides a concrete glue reducer, which is prepared from the following raw materials:

[0058] Methallyl polyoxyethylene ether polycarboxylate water reducer, 22 parts by weight;

[0059] Diethanolamine, 2 parts by weight;

[0060] Polyvinyl alcohol, 2 parts by weight;

[0061] Methylcellulose, 1 part by weight;

[0062] Alkyl quaternary ammonium salt surfactant, 0.3 parts by weight;

[0063] Amino silicone oil, 0.1 parts by weight;

[0064]Water, 75 parts by weight.

[0065] The preparation method of concrete glue reducer described in the present embodiment, comprises the steps:

[0066] (1) Under heating conditions, add the methallyl polyoxyethylene ether polycarboxylate water reducer to water at 40°C, stir and mix thoroughly for 0.5 hours, and set aside;

[0067] (2) Add diethanolamine and polyvinyl alcohol to the mixture obtained in step (1), stir and react for 30 minutes and set aside;

[0068] (3) Get the alkyl quaternary ammonium salt surfac...

Embodiment 3

[0071] This embodiment provides a concrete glue reducer, which is prepared from the following raw materials:

[0072] Methallyl polyoxyethylene ether polycarboxylate water reducer, 20 parts by weight;

[0073] Diethanolamine, 5 parts by weight;

[0074] Polyvinyl alcohol, 1.2 parts by weight;

[0075] Carboxyethyl cellulose, 2.5 parts by weight;

[0076] Alkyl quaternary ammonium salt surfactant, 0.2 parts by weight;

[0077] Amino silicone oil, 0.3 parts by weight;

[0078] Water, 65 parts by weight.

[0079] The preparation method of concrete glue reducer described in the present embodiment, comprises the steps:

[0080] (1) Under heating conditions, add the methallyl polyoxyethylene ether polycarboxylate superplasticizer into water at 32°C, stir and mix thoroughly for 0.8 hours, and set aside;

[0081] (2) Add diethanolamine and polyvinyl alcohol to the mixture obtained in step (1), stir and react for 25 minutes and set aside;

[0082] (3) Get the alkyl quaternary am...

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Abstract

The invention relates to a concrete glue reducing agent and a preparation method thereof. The concrete glue reducing agent is prepared by adding a quaternary ammonium salt surfactant and silicone oilinto raw material components according to a proper proportion. During preparation, a methyl allyl polyoxyethylene ether polycarboxylic acid water reducing agent is added into water firstly, then organic amine and organic alcohol are added for a stirring reaction, cellulose ether is added, a stirring reaction is performed for certain time, a mixture of a quaternary ammonium salt surfactant and silicone oil is added, and a stirring mixing reaction is performed to finally prepare a concrete glue reducing agent. According to the invention, the concrete glue reducing agent is used for concrete, thehydration degree of the cement is enhanced, the cement consumption is lowered, the mechanical properties and compactness of the concrete are effectively enhanced, and the workability and the volume stability of the concrete are also improved; and according to the concrete glue reducing agent, the manufacturing cost can be effectively reduced, 30 kg of cement can be saved for each cubic meter of concrete with C30 or above, and the concrete glue reducing agent is compatible with a conventional additive and has no side effect.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a concrete glue reducer and a preparation method thereof. Background technique [0002] Concrete is a kind of cement that is used as a gel material, and then water, sand and other fillers are added. In addition, special concrete additives need to be added. Through sufficient mixing, the cement is hydrated to form an overall structure with a certain strength. As a building material, concrete is widely used in various construction projects. With the continuous development of infrastructure, the demand for concrete is also increasing. [0003] After full mixing, the dispersion state of cement in concrete has a great influence on the performance of concrete. The better the dispersion of cement in concrete, the higher the strength of concrete, which means that under the condition of ensuring the strength of concrete, the cement The better the dispersion in concrete, the l...

Claims

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Application Information

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IPC IPC(8): C04B24/42
CPCC04B40/0039C04B24/32C04B24/383C04B24/122C04B24/2623C04B24/42C04B2103/40Y02W30/91
Inventor 王镇
Owner 北京富瑞勒斯科技开发有限公司
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