Liquid soil stabilizer for improving water resistance and preparation method

A soil curing agent and water resistance technology, applied in chemical instruments and methods, soil conditioning materials, and other chemical processes, can solve the problems of reducing the plastic limit and liquid limit of clay, easily damaging the soil environment, and cumbersome process steps. Achieve the effects of low production cost, improved curing performance, and simple process steps

Pending Publication Date: 2022-03-15
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The patent whose publication number is CN109135761A discloses a new type of environment-friendly soil curing agent. The disclosed components are 10-25 parts of alkyl metal compound, 5-10 parts of triisopropanolamine, 6-20 parts of polyacrylate, water-soluble 12-25 parts of permanent cellulose, 5-10 parts of phosphate, 3-8 parts of ferrous sulfate, and the rest are solvents. This application uses divalent metal ions to solidify the soil, which is not friendly to the environment and is likely to cause environmental damage
[0007] The patent with the publication number CN105038806B discloses a polymeric organic soil stabilizer and its synthesis method. The disclosed components are proportioned in parts by weight: 2-6 parts of magnesium chloride, 4-8 parts of calcium chloride, 0.3- 0.8 parts of calcium oxide, 0.3-0.8 parts of magnesium oxide, 3-8 parts of acrylamide, 0.1-0.4 parts of ammonium persulfate, 0.2-0.6 parts of potassium persulfate, 10-20 parts of soluble cellulose, 5-15 parts of carboxymethyl Sodium cellulose, 0.5-1 part of sodium hydroxide, 50-70 parts of water, acrylamide, ammonium persulfate and potassium persulfate are used in the raw materials of this application, the risk is high in the production process, and the produced soil stabilizer is easy Destroy the soil environment
[0008] The patent with the publication number CN101525541B discloses a soil stabilizing agent, which consists of two compositions: a soil stabilizer and a soil curing agent, and discloses that the soil curing agent consists of 17-25 parts of polyvinyl alcohol, 4-8 parts of polyvinyl 3-6 parts, 3-6 parts of hydroxyethyl cellulose, 5-10 parts of polyethylene glycol, 2-4 parts of hydroxypropyl methylcellulose, 47-69 parts of water, the application utilizes soil stabilizer and soil curing agent to make The soil changes from hydrophilic to hydrophobic, reducing the plastic limit and liquid limit of clay, high raw material prices, cumbersome process steps, and high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a liquid soil solidifying agent for improving water resistance and a preparation method thereof, the specific method is as follows:

[0037] 1. Raw materials

[0038] Sodium carboxymethylcellulose, glycerin, fatty acid, fatty acid methyl ester, sodium p-lauryl sulfonate, sodium polycarboxylate, lithium hydroxide, calcium hydroxide, aluminum silicate, distilled water.

[0039] 2. Preparation steps

[0040] Step 1. Preparation of curing agent stock solution: add 13 parts of sodium carboxymethylcellulose, 4 parts of glycerin, 6 parts of fatty acid, 18 parts of fatty acid methyl ester, 10 parts of p-dodecyl to 40 parts of distilled water according to the mass ratio Sodium sulfonate and 3 parts of sodium polycarboxylate were stirred continuously at room temperature to dissolve them, and stirred continuously for 2 hours to obtain the stock solution of the curing agent;

[0041] Step 2. Adjust the pH of the stock solution: Add 1.2 parts of calcium hy...

Embodiment 2

[0045] This embodiment provides a preparation method of a bio-based highly water-resistant liquid soil stabilizer, the specific method is as follows:

[0046] 1. Raw materials

[0047] Hydroxypropyl methylcellulose, glycerin, fatty acid, fatty acid methyl ester, sodium p-lauryl sulfonate, sodium polycarboxylate, lithium hydroxide, calcium hydroxide, aluminum silicate, distilled water.

[0048] 2. Preparation steps

[0049] Step 1. Prepare the stock solution of curing agent: add 13 parts of hydroxypropyl methylcellulose, 4 parts of glycerin, 6 parts of fatty acid, 18 parts of fatty acid methyl ester, and 10 parts of p-dodecane to 40 parts of distilled water according to the mass ratio Sodium sulfonate and 3 parts of sodium polycarboxylate were continuously stirred at room temperature to dissolve them, and continued to stir for 2 hours to obtain the solidifying agent stock solution;

[0050] Step 2. Adjust the pH of the stock solution: Add 1.2 parts of calcium hydroxide to the...

Embodiment 3

[0054] This embodiment provides a preparation method of a bio-based highly water-resistant liquid soil stabilizer, the specific method is as follows:

[0055] 1. Raw materials

[0056] Sodium carboxymethylcellulose, glycerin, fatty acid, fatty acid methyl ester, sodium p-lauryl sulfonate, sodium polycarboxylate, lithium hydroxide, calcium hydroxide, aluminum silicate, distilled water.

[0057] 2. Preparation steps

[0058] Step 1. Preparation of curing agent stock solution: add 10 parts of sodium carboxymethylcellulose, 4 parts of glycerin, 6 parts of fatty acid, 18 parts of fatty acid methyl ester, 12 parts of p-dodecyl to 40 parts of distilled water according to the mass ratio Sodium sulfonate and 4 parts of sodium polycarboxylate were continuously stirred at room temperature to dissolve them, and continued to stir for 2 hours to obtain the curing agent stock solution;

[0059] Step 2. Adjust the pH of the stock solution: Add 1.2 parts of calcium hydroxide to the stock sol...

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Abstract

The invention relates to the technical field of soil stabilizers, in particular to a liquid soil stabilizer capable of improving water resistance and a preparation method, and the liquid soil stabilizer comprises the following components in percentage by mass: 6-16 parts of water-soluble biomass cellulose and organic biomass, the organic biomasses comprise glycerol and fatty acid derivatives; the invention relates to a water-soluble organic fertilizer, which is characterized by further comprising a bio-based and derivatives thereof, specifically comprising sodium dodecyl sulfate and sodium polycarboxylate, and further comprising inorganic matters, specifically comprising lithiates, calcified compounds and phosphorus aluminide; pure water is taken as a solvent, and the double-electrode-layer thickness of soil particles is changed by controlling the temperature as a main parameter, so that the soil particles are convenient to bond, and precipitates are generated to improve the water resistance. The water-soluble cellulose, the sodium dodecyl sulfate and the sodium polycarboxylate are adopted, so that the surfaces of soil particles are covered with oleophylic parts in organic matter macromolecules, overall stability of the particles and release of free water are facilitated, the hydrophobicity of the soil can be improved, and the problems in the background technology are solved.

Description

technical field [0001] The invention relates to the technical field of soil curing agents, in particular to a liquid soil curing agent for improving water resistance and a preparation method. Background technique [0002] Sustainable development is the theme of today's development. As the country pays more and more attention to ecological and environmental construction, resources such as sand and stone in construction industries such as buildings and roads have begun to be controlled, which has caused the cost of materials used in related industries to increase continuously. Therefore, biomass And soils such as natural silt are favored as sustainable alternatives. [0003] Soil stabilizer is a new type of environmental protection and energy-saving engineering material that can physically and chemically interact with soil components to change soil properties. It originated in the United States and other developed countries in the 1950s. It is mainly used to replace tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K103/00C09K109/00
CPCC09K17/40C09K2103/00C09K2109/00
Inventor 乐传俊李小英顾黎萍杨海森
Owner CHANGZHOU INST OF TECH
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