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Soil curing agent and preparation method thereof

A technology of soil curing agent and sulfonated oil, applied in chemical instruments and methods, soil conditioning materials, organic fertilizers, etc., can solve problems such as unfavorable restoration of planting soil, danger to operators, inconsistent fineness, etc., and achieve economic and environmental benefits All are good, the shear strength is improved, and the effect of tight arrangement

Active Publication Date: 2018-10-26
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the powder soil stabilizer is prepared, there are problems such as poor uniformity, easy agglomeration, difficulty in control, inconsistent fineness, etc. In comparison, the liquid soil stabilizer does not have these problems
[0005] But existing liquid soil solidifying agent, such as Chinese patent application CN104694133A, the disclosed liquid soil solidifying agent of CN105038806B have poor water stability, and wherein contain inorganic acids such as sulfuric acid or acidic salts, make the solution be strong Acidity not only brings great danger to the operators, but also the strong acid solution enters the groundwater and soil, which is very unfavorable to the restoration of planting soil in the future, and there are different degrees of environmental damage. Conservation and environmental friendliness" type of technical development requirements deviate from

Method used

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  • Soil curing agent and preparation method thereof

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preparation example Construction

[0033] A preparation method of soil solidifying agent, it comprises:

[0034]S1: In parts by mass, weigh 30-100 parts of sulfonated oil, 10-40 parts of alcohol amine, 10-80 parts of polyol, 0.1-0.5 part of polyanionic cellulose, and 50-100 parts of water.

[0035] Wherein, the alcohol amine is preferably diethanolamine, triethanolamine or triisopropanolamine.

[0036] Wherein, the polyhydric alcohol is preferably one or more of ethylene glycol, 1,2-propanediol, 1,4-butanediol, neopentyl glycol and glycerol, preferably glycerol.

[0037] Wherein, the sulfonated oil is preferably sulfonated castor oil.

[0038] S2: dissolving polyanionic cellulose in water to obtain a first solution. Specifically, the water temperature during dissolution is 10-30°C, and the stirring time is 20-30 minutes to obtain the first solution described above.

[0039] S3: Dissolving the sulfonated oil in the first solution to obtain a second solution. Specifically, the dissolution temperature is 10-30...

Embodiment 1

[0043] S1: In parts by mass, weigh 60 parts of sulfonated castor oil, 20 parts of triethanolamine, 30 parts of ethylene glycol, 0.2 part of polyanionic cellulose, and 100 parts of water.

[0044] S2: dissolving the polyanionic cellulose in water at 30°C, stirring for 20 min, until the polyanionic cellulose is completely dissolved to obtain the first solution.

[0045] S3: Dissolving sulfonated castor oil in the first solution at a dissolution temperature of 20°C and stirring for 30 minutes to form a milky white suspension to obtain a second solution.

[0046] S4: Add triethanolamine and ethylene glycol to the second solution, the dissolution temperature is 25°C, and stir for 40min to obtain a transparent solution, which is the soil curing agent.

Embodiment 2

[0048] S1: In parts by mass, weigh 50 parts of sulfonated castor oil, 20 parts of diethanolamine, 10 parts of 1,2-propylene glycol, 0.2 parts of polyanionic cellulose, and 100 parts of water.

[0049] S2: dissolving the polyanion cellulose in water at 10°C, stirring for 30 min, until the polyanion cellulose is completely dissolved to obtain the first solution.

[0050] S3: Dissolving sulfonated castor oil in the first solution at a dissolution temperature of 10°C and stirring for 45 minutes to form a milky white suspension to obtain a second solution.

[0051] S4: Add diethanolamine and 1,2-propanediol to the second solution, the dissolution temperature is 10°C, and stir for 60 minutes to obtain a transparent solution, which is the soil curing agent.

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Abstract

The invention relates to a soil curing agent. The soil curing agent is prepared from the following components in parts by mass: 30 to 100 parts of sulfonated oil, 10 to 40 parts of alkylol amine, 10 to 80 parts of polyol, 0.1 to 0.5 part of polyanionic cellulose and 50 to 100 parts of water. A stabilized soil reagent prepared from the soil curing agent can obtain very good perform indexes including unconfined compression strength, high water stability and the like. Meanwhile, a soil curing agent solution is weakly alkaline so that the soil curing agent is safer to use and the environment protection is facilitated better. The invention further relates to a preparation method of the soil curing agent.

Description

technical field [0001] The invention relates to a curing agent, in particular to a liquid soil curing agent and a preparation method thereof. Background technique [0002] Soil stabilizing agent is also called soil stabilizing admixture, (English soil stabilizing admixtures) is an admixture that is added to the soil to improve soil engineering performance through physical and (or) chemical reactions with inorganic binders, soil and water, referred to as soil stabilization agent. According to the form of the solidifying agent, it is divided into liquid soil stabilizing admixture (LSS) and powder soil stabilizing admixture (PSS). For the liquid soil stabilizer, the indicators for evaluating its performance include: homogeneity, stability, soluble heavy metal ion content, test piece performance indicators: coagulation time influence coefficient ratio (%), unconfined compressive strength ratio ( %), water stability coefficient ratio (%). [0003] With the deepening of the res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/32C09K103/00
CPCC09K17/32C09K2103/00
Inventor 杨富民张松琦马荣田蔡德钩孙成晓何军利
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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