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Concrete water-reducing agent with high pressure resistance as well as preparation method thereof

A technology of concrete water reducing agent and defoaming agent, which is applied in the field of construction accessories, can solve the problems of easy slump, lack of resistance to pressure, resistance to pressure difference, etc., to improve fluidity, strengthen modification effect, high The effect of slump retention

Inactive Publication Date: 2019-04-26
广州华隆建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the water reducing agents in the prior art are only used to quickly reduce the water so that the concrete can be set as soon as possible. They do not have the ability to withstand compression. Even if they have, their compression resistance is very poor, so they are easy to slump

Method used

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  • Concrete water-reducing agent with high pressure resistance as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A compressive and strong concrete water reducer, comprising the following raw materials in parts by weight: 20 parts of methacrylic alcohol polyoxyethylene ether, 8 parts of fatty acid potassium soap, 3 parts of sodium methacrylic acid sulfonate, and 5 parts of bone glue , 2 parts of sodium tripolyphosphate, 2 parts of cocoyl diethanolamine, 1 part of shell powder, 2 parts of methacrylic polyethylene glycol, 1 part of supersaturated urea solution, 8 parts of melamine formaldehyde resin, 3 parts of defoamer , 2 parts of thickener, 1 part of mercaptoacetic acid, 10 parts of deionized water.

[0018] The molecular weight of the methacrylic alcohol polyoxyethylene ether is 2000.

[0019] The defoaming agent is emulsified silicone oil; the thickening agent is aluminum silicate.

[0020] A method for preparing the compressive and strong concrete water reducer, the steps are as follows: S1: Add methacrylic alcohol polyoxyethylene ether, fatty acid potassium soap, sodium methacrylic ...

Embodiment 2

[0024] A compressive and strong concrete water reducer, comprising the following raw materials in parts by weight: 23 parts of methacrylic alcohol polyoxyethylene ether, 10 parts of fatty acid potassium soap, 5 parts of sodium methacrylate sulfonate, and 7 parts of bone glue , 3 parts of sodium tripolyphosphate, 3 parts of cocoyl diethanolamine, 2 parts of shell powder, 4 parts of methacrylic polyethylene glycol, 2 parts of supersaturated urea solution, 10 parts of melamine formaldehyde resin, 4 parts of defoamer , 4 parts thickener, 2 parts mercaptoacetic acid, 13 parts deionized water.

[0025] The molecular weight of the methacrylic alcohol polyoxyethylene ether is 2,100.

[0026] The defoaming agent is emulsified silicone oil; the thickening agent is aluminum silicate.

[0027] A method for preparing the compressive and strong concrete water reducer, the steps are as follows: S1: Add methacrylic alcohol polyoxyethylene ether, fatty acid potassium soap, sodium methacrylic sulfona...

Embodiment 3

[0031] A compression-resistant and strong concrete water reducer, comprising the following raw materials in parts by weight: 26 parts of methacrylic alcohol polyoxyethylene ether, 12 parts of fatty acid potassium soap, 6 parts of sodium methacrylate sulfonate, and 8 parts of bone glue , 4 parts of sodium tripolyphosphate, 3.5 parts of cocoyl diethanolamine, 3 parts of shell powder, 5 parts of methacrylic polyethylene glycol, 3 parts of supersaturated urea solution, 13 parts of melamine formaldehyde resin, 4.5 parts of defoamer , 6 parts thickener, 3 parts mercaptoacetic acid, 16 parts deionized water.

[0032] The molecular weight of the methacrylic alcohol polyoxyethylene ether is 2,200.

[0033] The defoaming agent is emulsified silicone oil; the thickening agent is aluminum silicate.

[0034] A method for preparing the compressive and strong concrete water reducer, the steps are as follows: S1: Add methacrylic alcohol polyoxyethylene ether, fatty acid potassium soap, sodium metha...

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Abstract

The invention discloses the technical field of a building auxiliary material and relates to a concrete water-reducing agent with high pressure resistance as well as a preparation method thereof. The water-reducing agent comprises the following raw materials in parts by weight: 20 to 32 parts of methyl allyl alcohol polyoxyethylene ether, 8 to 16 parts of potassium fatty acid soap, 3 to 9 parts ofsodium methallyl sulfonate, 5 to 10 parts of bone glue, 2 to 6 parts of sodium tripolyphosphate, 2 to 5 parts of coconut diethanolamine, 1 to 5 parts of shell powder, 2 to 8 parts of methyl propyleneglycol, 1 to 5 parts of supersaturated urea solution, 8 to 18 parts of melamino-formaldehyde resin, 3 to 6 parts of a defoaming agent, 2 to 10 parts of a thickening agent, 1 to 5 parts of mercaptoacetic acid and 10 to 22 parts of deionized water. According to the concrete water-reducing agent provided by the invention, the concrete has high slump maintaining performance and pressure resistance, the concrete can maintain the construction property for a long time, and the collapse resistance is enhanced.

Description

Technical field [0001] The invention relates to the technical field of construction auxiliary materials, in particular to a compressive-resistant and strong concrete water reducer and a preparation method thereof. Background technique [0002] Water reducer refers to an admixture that can reduce the mixing water and increase the strength of concrete under the conditions of constant workability and cement consumption; or save cement consumption under the conditions of constant workability and strength; cement mixed with water After the combination, due to the molecular gravity of the cement particles, the cement slurry forms a flocculating structure, so that 10%-30% of the mixing water cannot participate in free flow and lubrication, thus affecting the fluidity of the concrete mixture. After the water agent, because the water-reducing agent molecules can be adsorbed on the surface of the cement particles, the surface of the cement particles is charged with the same electric charge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42C04B103/30
CPCC04B40/0039C04B2103/302C04B24/32C04B24/08C04B24/16C04B24/14C04B22/16C04B24/122C04B22/10C04B24/126C04B24/305C04B24/42C04B22/00
Inventor 池业建
Owner 广州华隆建筑材料有限公司
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