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Soil stabilizer for high-pressure rotary jet grouting pile in foundation construction and preparation method of soil stabilizer

A technology of high-pressure rotary spray pile and soil curing agent, applied in the field of construction, can solve the problems of poor stability of finished products, short shelf life, poor curing and hardening effects, etc., and achieve the effects of improving strength, improving dispersibility, and improving curing effect.

Inactive Publication Date: 2017-11-24
任运(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the curing and hardening effect of the soil curing agent in the prior art is not good, and because the finished curing agent contains a variety of inorganic and organic blends, the stability of the finished product is relatively poor, and the shelf life is short. Soil curing agent for high-pressure rotary grouting pile in foundation construction and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The soil curing agent for high-pressure jet grouting piles in foundation construction is composed of the following raw materials by weight:

[0028] Silica sol dispersion 17, polyvinyl alcohol 4, acrylamide 18, sodium sulfate 10, coconut acid diethanolamide 4, ethoxylated alkylphenol ammonium sulfate 1, sodium myristate soap 3, calcium phosphate 30, peroxide Ammonium sulfate 0.4.

[0029] The silica sol dispersion liquid is composed of the following parts by weight of raw materials;

[0030] Ethyl orthosilicate 20, medical stone powder 3, ammonium polyphosphate 2, alkylphenol polyoxyethylene ether 0.13, palm wax 4, pentaerythritol 7, sucrose acetate isobutyrate 0.2.

[0031] The preparation method of the silica sol dispersion liquid includes the following steps:

[0032] (1) Take pentaerythritol, add it to 30 times its weight in deionized water, add palm wax, and keep stirring at 90°C for 20 minutes to obtain an alcohol solution;

[0033] (2) Take medical stone powder and sucrose...

Embodiment 2

[0042] The soil curing agent for high-pressure jet grouting piles in foundation construction is composed of the following raw materials by weight:

[0043] Silica sol dispersion 10, polyvinyl alcohol 3, acrylamide 10-18, sodium sulfate 7, coconut acid diethanolamide 3, ethoxylated alkylphenol ammonium sulfate 0.6, sodium myristate soap 2, calcium phosphate 25 , Ammonium persulfate 0.3.

[0044] The silica sol dispersion liquid is composed of the following parts by weight of raw materials;

[0045] Ethyl orthosilicate 18, medical stone powder 2, ammonium polyphosphate 1, alkylphenol polyoxyethylene ether 0.1, palm wax 3, pentaerythritol 6, sucrose acetate isobutyrate 0.1.

[0046] The preparation method of the silica sol dispersion liquid includes the following steps:

[0047] (1) Take pentaerythritol, add it to 20-30 times its weight in deionized water, add palm wax, and keep stirring at 85°C for 15 minutes to obtain an alcohol solution;

[0048] (2) Take medical stone powder and sucros...

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Abstract

The invention discloses a soil stabilizer for a high-pressure rotary jet grouting pile in foundation construction. The soil stabilizer is prepared from the following raw materials in parts by weight: 10-17 parts of a silicasol dispersion liquid, 3-4 parts of polyvinyl alcohol, 10-18 parts of acrylamide, 7-10 parts of sodium sulfate, 3-4 parts of coconut fatty acid diethanolamide, 0.6-1 part of ethoxylated alkylphenol ethoxylated alkylphenol, 2-3 parts of sodium myristate soap, 25-30 parts of calcium phosphate and 0.3-0.4 part of ammonium persulfate. The soil stabilizer provided by the invention has the effects of being capable of directly cementing the surfaces of soil particles in a soil body or being reacted with clay minerals to produce gelatinous substances at a normal temperature after various inorganic materials and organic materials are subjected to blending and compatible treatment and can improve the composition of soil and engineering properties of the soil body, so that the strength of the soil body and the compactability of the soil quality are improved.

Description

Technical field [0001] The invention belongs to the field of construction, and in particular relates to a soil curing agent for high-pressure jet grouting piles in foundation construction and a preparation method thereof. Background technique [0002] In the construction of houses, bridges, highways and other buildings, when soft foundations are encountered, it is necessary to use the high-pressure jet grouting pile technology to increase the strength of the foundation before subsequent construction. The addition of soil curing agent during the construction of high-pressure jet grouting piles can greatly save the amount of cement and increase the high pressure. The strength of jet grouting piles can also be used for construction of underground retaining walls; [0003] The construction principle is to mix cement and clean water according to the ratio of 1:1 to form cement slurry, use a grouting machine at a pressure of 20-40Mpa to inject the underground soft soil foundation accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K103/00
CPCC09K17/40C09K2103/00
Inventor 刘霞张鹏伟
Owner 任运(北京)科技有限公司
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