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Multifunctional surface optimization agent for concrete and preparation method thereof

A multi-functional, concrete technology, applied in the field of materials, can solve the problems of large performance differences and no evaluation methods, and achieve the effects of stable performance, fast film forming speed, and environmentally friendly materials

Active Publication Date: 2019-10-25
CHINA STATE CONSTR READY MIXED CONCRETE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the construction admixtures related to the surface quality of concrete on the market are all single-performance products, such as concrete release agent, concrete surface enhancer, concrete defoamer, etc. There are many types of them, and their performance varies greatly, and there is no effective evaluation method ,

Method used

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  • Multifunctional surface optimization agent for concrete and preparation method thereof
  • Multifunctional surface optimization agent for concrete and preparation method thereof
  • Multifunctional surface optimization agent for concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of multifunctional surface optimizer for concrete is as follows:

[0027] Weigh 100g of 58-degree palm oil into a round-necked flask, add 5g of sorbitan fatty acid ester-80, stir, heat to 40°C, dissolve 5g of polyoxyethylene sorbitan fatty acid ester, 1g of phosphoric acid Diester, 1g butyl acrylate, 1g carboxylate, 1g polyvinyl alcohol, 0.5g polyacrylamide, 0.5g xanthan gum and 40°C water (emulsified water) are slowly added dropwise to the round neck flask until the phase inversion of the emulsion . Increase the rotation speed to 150r / min, and slowly pour in the remaining water. After stirring for 20 minutes, reduce the rotating speed to 60r / min, and discharge after cooling to obtain the multifunctional surface optimizer YH-1.

Embodiment 2

[0029] A preparation method of multifunctional surface optimizer for concrete is as follows:

[0030] Weigh 100g of 58-degree palm oil and pour it into a round-necked flask, add 10g of sorbitan fatty acid ester-80, stir, heat to 40°C, dissolve 10g of polyoxyethylene sorbitan fatty acid ester, 1g of phosphoric acid Monoester, 1 g of carboxylate, 1 g of polysiloxane, and 1 g of polyacrylamide in water (emulsified water) at 40° C. were slowly added dropwise into a round-necked flask until the phase of the emulsion was inverted. Increase the rotation speed to 200r / min, and slowly pour in the remaining water. After stirring for 20 minutes, reduce the rotation speed to 60r / min, and discharge the material after cooling to obtain the multifunctional surface optimizer YH-2.

Embodiment 3

[0032] A preparation method of multifunctional surface optimizer for concrete is as follows:

[0033] Weigh 100g of 58-degree palm oil and pour it into a round-necked flask, add 10g of fatty alcohol polyoxyethylene ether (MOA-3), stir, heat to 30°C, and dissolve 10g of fatty alcohol polyoxyethylene ether (MOA-9) , 1g phosphoric acid diester, 1g butyl acrylate, 1g carboxylate, 1g polyvinyl alcohol, 0.5g polyacrylamide, 0.5g xanthan gum and 30°C water (emulsified water) were slowly added dropwise to the round-necked flask until Emulsion phase inversion. Increase the rotation speed to 150r / min, and slowly pour in the remaining water. After stirring for 20 minutes, the rotation speed was reduced to 60r / min, and after cooling, the material was discharged to obtain the multifunctional surface optimizer YH-3.

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Abstract

The invention belongs to the technical field of materials, and particularly relates to a multifunctional surface optimization agent for concrete and a preparation method thereof. The multifunctional surface optimization agent for the concrete comprises, by mass, 5%-15% of palm oil with 58 degrees, 1%-5% of a compound emulsifying agent, 1%.-5%. of an anti-rust component, 1%.-5%. of a defoaming component, 1%.-10%. of a surface enhancing component, 1%.-5%. of a stabilizing agent, 0.1%. of an anti-corrosion agent and 80%-90% of water. According to the multifunctional surface optimization agent, four functional units including dust preventing, defoaming, demolding and surface enhancing which are related to the surface quality are integrated, the film forming speed is high when the multifunctional surface optimization agent acts on the formwork surface, a formed film is very compact, the surface strength of the concrete is improved by 10%-20%, and a powerful guarantee is provided for enhancing the durability of the concrete.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a multifunctional surface optimizer for concrete and a preparation method thereof. Background technique [0002] Since the advent of concrete, it has experienced the development of low strength, medium strength, high strength and even super high strength. It seems that people are always willing to pursue the continuous improvement of strength. However, in the past 50 years, the accidents of premature failure and collapse of concrete structures due to material deterioration have been common at home and abroad, and they are becoming more and more serious. The premature failure of these concrete works was not due to insufficient strength but due to poor durability of the concrete. [0003] The factors affecting the durability of concrete mainly include the following aspects: concrete freeze-thaw damage, concrete alkali-aggregate reaction; The various deterioration pr...

Claims

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Application Information

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IPC IPC(8): B28B7/38C04B40/00
CPCB28B7/384B28B7/388C04B40/00
Inventor 邢菊香王军赵日煦熊龙
Owner CHINA STATE CONSTR READY MIXED CONCRETE CO LTD
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