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Acrylate grouting liquid and preparation method thereof

A technology of acrylate and grouting fluid, which is applied in the field of grouting materials, can solve the problems of crosslinking agent toxicity, unfavorable environmental protection, etc., achieve large expansion capacity, good durability, and improve the effect of anti-seepage

Active Publication Date: 2008-09-17
北京朗巍时代科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of acrylate grouting liquid, to solve the technical problem that the cross-linking agent used in the traditional grouting liquid is toxic and not conducive to environmental protection; and can further improve the anti-seepage effect of the grouting liquid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1, an acrylate grouting liquid, including liquid A and liquid B, liquid A uses acrylate as the main material, and the mixing ratio of the components of liquid A and liquid B in parts by weight is as follows:

[0061]Liquid A: 41 parts of 1,6-hexanediol diacrylate salt solution;

[0062] 5 parts of polymethyl acrylate crosslinking agent;

[0063] Accelerator sodium thiosulfate 5 parts;

[0064] 0.75 parts of additive sodium hydroxide;

[0065] 1.6 parts of water;

[0066] B solution: initiator methyl ethyl ketone peroxide 0.4 parts;

[0067] 1.25 parts of additive sodium hydroxide;

[0068] 45 parts of water.

[0069] The preparation method of the above-mentioned acrylate grouting liquid is as follows: first prepare liquid A and liquid B, and then mix equal volumes of liquid A and liquid B at room temperature on site to form a gel. If the gel time needs to be shortened, the amount of accelerator can be increased.

Embodiment 2

[0070] Embodiment 2, an acrylate grouting liquid, including liquid A and liquid B, liquid A uses acrylate as the main material, and the mixing ratio of the components of liquid A and liquid B in parts by weight is as follows:

[0071] Liquid A: 44 parts of sodium acrylate aqueous solution;

[0072] 6 parts of methyl acrylate crosslinking agent;

[0073] Accelerator triethanolamine 0.5 part;

[0074] 0.4 part of additive potassium hydroxide;

[0075] 2 parts of water;

[0076] Liquid B: 0.5 parts of initiator ammonium persulfate;

[0077] 1.25 parts of additive potassium hydroxide;

[0078] 44.85 parts of water.

[0079] In addition, liquid B also contains an aqueous solution of potassium ferricyanide retarder accounting for 5‰ of the total weight, and the solid content of the aqueous solution of potassium ferricyanide retarder is 10%.

[0080] The preparation method of the above-mentioned acrylate grouting liquid is as follows: first prepare liquid A and liquid B, and th...

Embodiment 3

[0081] Embodiment 3, an acrylate grouting liquid, including liquid A and liquid B, liquid A uses acrylate as the main material, and the mixing ratio of the components of liquid A and liquid B in parts by weight is as follows:

[0082] Liquid A: 50 parts of polymethacrylic acid saline solution;

[0083] 5.5 parts of butyl acrylate crosslinking agent;

[0084] Accelerator ethylene glycol monomethyl ether solution 1.2 parts;

[0085] 0.4 parts of additive sodium hydroxide;

[0086] 1.5 parts of water;

[0087] Liquid B: 0.4 parts of initiator potassium persulfate;

[0088] Additive sodium hydroxide 1 part;

[0089] 40 parts of water.

[0090] The preparation method of the above-mentioned acrylate grouting liquid is as follows: firstly prepare liquid A and liquid B, and then mix equal volumes of liquid A and liquid B at room temperature to form a gel on site.

[0091] The preparation method of the alkali metal hydroxide can supply the aqueous alkali metal chloride solution t...

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Abstract

The invention provides an acrylate grouting liquid composed of a liquid A and a liquid B, which both contain acrylate as main ingredient. The formulation and weight proportions of the liquids A and B are as follows: liquid A: acrylate aqueous solution 40-50 parts, acrylic ester cross-linking agent 5-7 parts, accelerator 0.5-5 parts, alkali metal hydroxide additive 0.4-0.5 parts, and water 1.5-3 parts; liquid B: initiator 0.3-0.6 parts, alkali metal hydroxide additive 1-1.5 parts and water 40-50 parts. The liquids A and B are prepared before use, and mixed in the field at equal volume under room temperature to form a gel. In the invention, the acrylic ester is used as cross-linking agent so that the grouting liquid is free of amido groups and doesn't cause environmental pollution; and the alkali metal hydroxide is added so that the grouting liquid exhibits certain expandability in water and exhibits good anti-seepage effect.

Description

technical field [0001] The invention relates to a grouting material for building anti-seepage and plugging, in particular to an organic grouting material and a preparation method thereof. Background technique [0002] Acrylate grout for soil stabilization began in the 1940s with the use of calcium acrylate. Because acrylic acid could not be mass-produced at that time and acrylamide chemical grouting materials appeared in the 1950s, the research, development and application of acrylate grouting materials progressed slowly. In 1974, after the application of acrylamide chemical grouting materials in Japan caused environmental pollution, acrylate grouting materials received people's attention. In 1980, the United States developed the AC-400 acrylate chemical grouting material, the toxicity of the aqueous solution of the acrylate monomer mixture with a solid content of 38-42%, oral LD ​​in rats 50 Close to 5000 mg / kg, classified according to toxicity, close to the actual non-to...

Claims

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Application Information

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IPC IPC(8): C04B24/04
Inventor 何月巍谭日升何跃峰
Owner 北京朗巍时代科技有限责任公司
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