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Water-reducing agent for concrete and preparation method thereof

A technology of concrete water reducing agent and mixture, which is applied in the field of concrete, and can solve problems such as cracking, affecting the quality and strength of concrete, and achieve the effects of avoiding cracking, improving comprehensive performance, and improving fluidity

Inactive Publication Date: 2018-06-01
JIANGSU BAIRUIJI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the concrete using the above-mentioned water reducing agent can reduce the unit water consumption and improve the fluidity of the concrete mixture, the concrete is prone to cracking after solidification, which affects the quality and strength of the concrete

Method used

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  • Water-reducing agent for concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh the following components by mass percentage: 4.5% aminobenzenesulfonate, 8% sodium pyrosulfite, 18% methacrylic acid, and 8% acrylic acid to obtain mixture A; weigh the reinforcing component by mass percentage: glycidyl azide polymerization 25% glyceryl monostearate, 20% glyceryl monostearate, 6.5% triethanolamine, 15% sodium polymethacrylate, 35% polyquaternary ammonium salt, and 13.5% sodium dodecylbenzenesulfonate; Mix to obtain mixture B; take the following components by mass percentage: 6% methyl methacrylate, 5% sodium p-aminobenzenesulfonate, 3.5% phosphobutane tricarboxylic acid, 14.5% sodium lauryl sulfate, Stabilizer 6.5%, and stir evenly at 18°C ​​to obtain mixture C; take the curing component by mass percentage: lithium polysilicate 23%, antioxidant 18%, trimethoxysilane 10%, nano-titanium dioxide 33% , silane coupling agent 26%; the curing component and the mixture C are added to the mixture B to obtain the concrete water reducer of the present invent...

Embodiment 2

[0040] Weigh the following components by mass percentage: 2.5% aminobenzenesulfonate, 9% sodium pyrosulfite, 18% methacrylic acid, and 8% acrylic acid to obtain mixture A; weigh the reinforcing component by mass percentage: glycidyl azide polymerization 25% glyceryl monostearate, 20% glyceryl monostearate, 8.5% triethanolamine, 18% sodium polymethacrylate, 25% polyquaternary ammonium salt and 9.5 sodium dodecylbenzenesulfonate; Mix to obtain mixture B; take the following components by mass percentage: 6% methyl methacrylate, 5% sodium p-aminobenzenesulfonate, 3.5% phosphobutane tricarboxylic acid, 8.5% sodium lauryl sulfate, Stabilizer 9.5%, and stir evenly at 18°C ​​to obtain mixture C; take the curing component by mass percentage: lithium polysilicate 21%, antioxidant 16%, trimethoxysilane 20%, nano-titanium dioxide 25% , silane coupling agent 27%; the curing component and the mixture C are added to the mixture B to obtain the concrete water reducer of the present invention....

Embodiment 3

[0042] Weigh the following components by mass percentage: 3.5% aminobenzenesulfonate, 9.5% sodium pyrosulfite, 16% methacrylic acid, and 10% acrylic acid to obtain mixture A; weigh the reinforcing component by mass percentage: glycidyl azide polymerization 27%, glyceryl monostearate 18%, triethanolamine 9.5%, sodium polymethacrylate 18%, polyquaternary ammonium salt 28%, and sodium dodecylbenzenesulfonate 10.5; Mix to obtain mixture B; weigh the following components by mass percentage: 14% methyl methacrylate, 17% sodium p-aminobenzenesulfonate, 7.5% phosphobutane tricarboxylic acid, 10.5% sodium lauryl sulfate, Stabilizer 8.5%, and stir evenly at 18°C ​​to obtain mixture C; take the curing component by mass percentage: lithium polysilicate 22%, antioxidant 17.5%, trimethoxysilane 28%, nano-titanium dioxide 28% , silane coupling agent 26%; the curing component and the mixture C are added to the mixture B to obtain the concrete water reducer of the present invention.

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Abstract

The invention provides a water-reducing agent for concrete and a preparation method thereof. The water-reducing agent for concrete is prepared from the following components in percentage by mass: 2.5-4.5% of amino benzene sulfonate, 8-11% of sodium metabisulfite, 12-18% of methacrylic acid, 8-16% of acrylic acid, 6-15% of methyl methacrylate, 5-15% of sodium p-aminobenzenesulfonate, 3.5-8.5% of phosphinobutane tricarboxylic acid, 7.5-14.5% of lauryl sodium sulfate, 6.5-10.5% of stabilizer, 13-25% of enhancing component and 10-15% of curing component. The water-reducing agent for concrete provided by the invention has the beneficial effects that the unit consumption of water is reduced, the fluidity of concrete mixture is improved, simultaneously the strength of the cured concrete also canbe obviously enhanced, the cracking of the concrete can be avoided, the benefit for ensuring the sufficiency of concrete reaction is achieved and the comprehensive property of the concrete can be improved.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete water reducer and a preparation method thereof. Background technique [0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete basically unchanged. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement. However, although the concrete using the above-mentioned water reducing agent can reduce the unit water consumption and improve the fluidity of the concrete mixture, the concrete is prone to cracking after solidification, which affects the quality and strength of the concrete. Therefore, in view of the above problems, it is necessary to propose a further solution. Contents of the invention [0003] The object o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42C04B103/30
CPCC04B40/0039C04B2103/302C04B24/20C04B22/16C04B24/04C04B24/045C04B24/003C04B24/16C04B24/24C04B24/085C04B24/122C04B24/2641C04B24/121C04B22/08C04B2103/608C04B24/42C04B14/305C04B24/02
Inventor 王亚军卢祎
Owner JIANGSU BAIRUIJI NEW MATERIAL
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