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Concrete synergist and preparation method thereof

A technology of concrete synergist and mass percentage, applied in the field of concrete, can solve the problems that the strength of cement cannot be effectively exerted, the economy and construction performance are difficult to be guaranteed, and the concrete is difficult to function again.

Inactive Publication Date: 2018-12-28
QINGHAI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research data show that under normal circumstances, about 20% to 30% of the cement in concrete does not participate in the hydration reaction, and only plays the role of filling fine aggregates, which cannot effectively exert the strength of cement, resulting in a great waste of resources.
On the other hand, because different water reducing agents have different influence mechanisms on cement adsorption, etc., after being mixed to a certain extent, it is difficult to work on concrete again, and its economical efficiency and construction performance are difficult to be guaranteed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] S1. Weigh each raw material according to mass percentage: 7% of acrylic acid emulsion; 2% of sodium lauryl sulfate; 5% of ethylene glycol; 5% of triisopropanolamine; 10% of nano-calcium carbonate; sodium lignosulfonate 3%; sodium lignosulfonate 2%; nano silicon particles 1%; octyl phenolic tackifying resin 10%; the balance is water.

[0024] S2. Add octylphenol formaldehyde tackifying resin, polyol and triisopropanolamine into the reaction tank, start stirring and raise the temperature. After the temperature rises to 100°C-120°C, stir for 3-6 hours;

[0025] S3, then add acrylic acid emulsion to the reaction tank, stir evenly and start adding sodium lauryl sulfate solution dropwise, the dropping time is controlled at 2-3 hours, and the temperature is controlled at 80-90°C during the dropping; wherein, twelve Alkyl sodium sulphate solution is obtained by mixing sodium lauryl sulphate taken by weighing and 1 / 3 of water taken by weighing;

[0026] S4. Add nano-calcium car...

Embodiment 2

[0028] S1. Weigh each raw material by mass percentage: 12% acrylic acid emulsion; 3% sodium lauryl sulfate; 7% ethylene glycol; 10% triisopropanolamine; 15% nanometer calcium carbonate; sodium lignosulfonate 5%; sodium lignosulfonate 4%; nano silicon particles 3%; 15%; the balance is water.

[0029] S2. Add octylphenol formaldehyde tackifying resin, polyol and triisopropanolamine into the reaction tank, start stirring and raise the temperature. After the temperature rises to 100°C-120°C, stir for 3-6 hours;

[0030] S3, then add acrylic acid emulsion to the reaction tank, stir evenly and start adding sodium lauryl sulfate solution dropwise, the dropping time is controlled at 2-3 hours, and the temperature is controlled at 80-90°C during the dropping; wherein, twelve Alkyl sodium sulphate solution is obtained by mixing sodium lauryl sulphate taken by weighing and 1 / 3 of water taken by weighing;

[0031] S4. Add nano-calcium carbonate, nano-silicon particles, sodium lignosulfon...

Embodiment 3

[0033] S1. Weigh each raw material according to mass percentage: 9.5% of acrylic acid emulsion; 2.5% of sodium lauryl sulfate; 6% of ethylene glycol; 7.5% of triisopropanolamine; 12.5% ​​of nano-calcium carbonate; sodium lignosulfonate 4%; sodium lignosulfonate 3%; nano silicon particles 2%; octyl phenolic tackifying resin 12.5%; the balance is water.

[0034] S2. Add octylphenol formaldehyde tackifying resin, polyol and triisopropanolamine into the reaction tank, start stirring and raise the temperature. After the temperature rises to 100°C-120°C, stir for 3-6 hours;

[0035] S3, then add acrylic acid emulsion to the reaction tank, stir evenly and start adding sodium lauryl sulfate solution dropwise, the dropping time is controlled at 2-3 hours, and the temperature is controlled at 80-90°C during the dropping; wherein, twelve Alkyl sodium sulphate solution is obtained by mixing sodium lauryl sulphate taken by weighing and 1 / 3 of water taken by weighing;

[0036] S4. Add nano...

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Abstract

The invention discloses a concrete synergist. The concrete synergist is prepared from the following raw materials in percentage by mass: 7%-12% of acrylic emulsion, 2%-3% of sodium dodecyl sulfate, 5%-7% of polyalcohol, 5%-10% of triisopropanolamine, 10%-15% of nano calcium carbonate, 3%-5% of diethylenetriamine-5-tetraoxaoctadecanoicacid, 2%-4% of sodium lignosulfonate, 1%-3% of nanometer silicongranules, 10%-15% of octyl phenolic tackifying resins and the balance of water. According to the concrete synergist disclosed by the invention, gaps in concrete can be stuffed, the bending tensile strength and the permeability resistance of the concrete are improved, the concrete is endowed with high mechanical force resistant performance, the problem of large time loss in collapsed slump of theconcrete is solved, the frost melting resistant capacity and the durability of the concrete can be improved at the same time, and the service life of the concrete can be prolonged.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a concrete synergist and a preparation method thereof. Background technique [0002] Concrete has become the most widely used material in the world because of its series of advantages. Research data show that about 20% to 30% of the cement in concrete does not participate in the hydration reaction in conventional environments, and only plays the role of filling fine aggregates, which cannot effectively exert the strength of cement, resulting in a great waste of resources. On the other hand, because different water reducers have different influence mechanisms on cement adsorption, etc., after being mixed to a certain extent, it is difficult to work on concrete again, and its economical efficiency and construction performance are difficult to be guaranteed. How to develop new concrete admixtures to solve the above problems and save the surplus cement while ensuring the basic performance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/30
CPCC04B40/0039C04B24/26C04B24/16C04B24/122C04B24/12C04B24/18C04B24/302C04B22/02C04B14/28C04B24/026
Inventor 李双营
Owner QINGHAI UNIV FOR NATITIES
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