Concrete synergist containing sulfonic acid group and preparation method thereof

A concrete synergist and sulfonic acid-containing technology, which is applied in the field of fine chemicals, can solve the problems that the economy and construction performance cannot be guaranteed, the cement strength cannot be effectively exerted, and the concrete is difficult to work again, and the conditions are mild and easy. , the effect of improving performance

Inactive Publication Date: 2018-10-26
李达峰
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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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  • Concrete synergist containing sulfonic acid group and preparation method thereof
  • Concrete synergist containing sulfonic acid group and preparation method thereof
  • Concrete synergist containing sulfonic acid group and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A concrete synergist containing sulfonic acid groups of the present invention is made of the following raw material components in proportions by mass:

[0037]

[0038] A kind of preparation method of the concrete synergist containing sulfonic acid group of the present invention, realizes by following steps:

[0039] (1) Put 26 parts of tea saponin, 10 parts of formic acid, and 0.2 parts of aluminum trichloride into the reaction tank, start stirring and raise the temperature, and react for 1.5 hours after the temperature rises to 102°C;

[0040] (2) Add 34.6 parts of water, 1.2 parts of pentaerythritol triacrylate, and 2 parts of acrylamidomethylpropanesulfonic acid into the reaction tank and stir for 0.6 hours;

[0041] (3) then dripping the sodium persulfate solution that the mass percent concentration is 9%, this sodium persulfate solution is formulated by 1.8 parts of sodium persulfate and 18.2 parts of water, and the dropping time is controlled at 3.2 hours, and...

Embodiment 2

[0044] A concrete synergist containing sulfonic acid groups of the present invention is made of the following raw material components in proportions by mass:

[0045]

[0046] A kind of preparation method of the concrete synergist containing sulfonic acid group of the present invention, realizes by following steps:

[0047] (1) Put 29 parts of tea saponin, 8 parts of formic acid, and 0.3 parts of aluminum trichloride into the reaction tank, start stirring and raise the temperature, and react for 2 hours after the temperature rises to 105°C;

[0048] (2) Add 29.2 parts of water, 2 parts of pentaerythritol triacrylate, and 3.5 parts of acrylamidomethylpropanesulfonic acid into the reaction tank and stir for 0.7 hours;

[0049] (3) then dripping the sodium persulfate agent solution that the mass percent concentration is 7.5%, this sodium persulfate solution is formulated by 1.5 parts of sodium persulfate and 18.5 parts of water, and the time of dropping is controlled at 4.5 ho...

Embodiment 3

[0052] A concrete synergist containing sulfonic acid groups of the present invention is made of the following raw material components in proportions by mass:

[0053]

[0054]

[0055] A kind of preparation method of the concrete synergist containing sulfonic acid group of the present invention, realizes by following steps:

[0056] (1) Put 32 parts of tea saponin, 8 parts of acetic acid, and 0.4 parts of ferric chloride into the reaction tank, start stirring and raise the temperature, and react for 3.2 hours after the temperature rises to 109°C;

[0057] (2) Add 23.1 parts of water, 2.5 parts of pentaerythritol triacrylate, and 5 parts of acrylamidomethylpropanesulfonic acid into the reaction tank and stir for 0.8 hours;

[0058] (3) then dripping mass percentage concentration is the potassium persulfate solution of 6%, this potassium persulfate solution is formulated by 1.2 parts of potassium persulfate and 18.8 parts of water, and the time of dropping is controlled at...

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Abstract

The invention provides a concrete synergist containing a sulfonic acid group and a preparation method thereof. The preparation method comprises the following steps: (1) adding tea saponin, organic acid and a catalyst into a reaction tank; starting to stir and raising the temperature; after raising the temperature to 100 DEG C to 120 DEG C, reacting for 1 to 5h; (2) then adding water, pentaerythritol triacrylate and acrylamide methyl propane sulfonic acid into the reaction tank and stirring for 0.5 to 1h; (3) then dripping an initiator solution with the mass percent concentration of 1 to 10 percent, wherein the initiator solution is prepared from an initiator and part of the water; controlling the dripping time to 3 to 5h and controlling the dripping temperature to 90 to 100 DEG C; (4) after dripping, adding organic amine and continuously reacting for 0.5 to 2h; then cooling and discharging to obtain the concrete synergist.

Description

technical field [0001] The invention belongs to the field of fine chemicals, in particular to a concrete synergist containing sulfonic acid groups 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 w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C08F289/00C08F222/20C08F220/58C08F8/32
CPCC04B24/163C08F8/32C08F289/00C04B2103/0068C08F222/104C08F220/585
Inventor 李达峰
Owner 李达峰
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