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A kind of clay solidifying agent and its preparation method and use method

A technology of curing agent and clay, applied in the field of clay curing agent and its preparation, can solve the problems of storage stability, permeability and diffusivity of curing agent and poor environmental protection, and achieve excellent biodegradability, good degradability, water solubility, etc. Good performance and diffusion

Active Publication Date: 2022-03-01
NANJING INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a clay curing agent and its preparation method and use method, and solve the problems of poor storage stability, permeability, diffusibility and environmental protection of traditional curing agents

Method used

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  • A kind of clay solidifying agent and its preparation method and use method
  • A kind of clay solidifying agent and its preparation method and use method
  • A kind of clay solidifying agent and its preparation method and use method

Examples

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Effect test

Embodiment 1

[0054] A clay curing agent, including the raw materials of the following mass components: 10 parts of vegetable oil mixed with tung oil and linseed oil at a ratio of 5:1, 10 parts of potassium oleate, OP-10, Tween-81 and lauryl Dimethylsulfoethyl betaine mixed at 1:1:0.1 is 5 parts of diffusing agent, 2.5 parts of 20%wt aluminum sulfate solution, 10 parts of sodium copolyacrylate, and 20 parts of pH value buffer solution with pH=6.5.

[0055] The preparation method of above-mentioned clay solidifying agent, comprises the following steps:

[0056] Mixing and stirring the pH buffer solution and sodium copolyacrylate according to mass components to obtain component A;

[0057] Mix the diffusing agent, unsaturated fatty acid potassium salt and vegetable oil according to mass components, heat to 50±5°C and stir evenly, then add dropwise 20%wt metal cation sulfate or hydrochloride solution, and stir to obtain component B;

[0058] Add component A to component B dropwise, keep a con...

Embodiment 2

[0065] A clay curing agent, including raw materials with the following mass components: 50 parts of vegetable oil mixed with tung oil and linseed oil at a ratio of 5:1, unsaturated potassium linoleate and potassium ricinoleate mixed at a ratio of 1:1 30 parts of potassium salt of fatty acid, 20 parts of diffusion agent mixed by Tuwen-81 and octadecyl dimethyl sulfoethyl betaine in 8:2, 20%wt aluminum chloride and ferric chloride solution (Al and The molar ratio of Fe is 1:1) 0.05 parts, 50 parts of sodium copolyacrylate, and 1 part of pH value buffer solution with pH=7.5.

[0066] The preparation method of above-mentioned clay solidifying agent is with embodiment 1.

[0067] The use method of above-mentioned clay solidifying agent in clay solidification, comprises the following steps:

[0068] Mix 60 parts of quicklime with 2000 parts of clay A, stack and mature for 5 days under natural conditions to obtain mellow soil;

[0069] Stir and mix 100 parts of cement A, 0.8 parts ...

Embodiment 3

[0073] A clay curing agent, including raw materials with the following mass components: 30 parts of vegetable oil mixed with tung oil and catalpa oil at a ratio of 1:1, unsaturated potassium linoleate and potassium ricinoleate mixed at a ratio of 1:1 Fatty acid potassium salt 20 parts, OP-10, Twain-81, Span 80, dodecyl dimethyl sulfopropyl betaine mixed according to 1:1:1:0.1 15 parts of diffusing agent, 20% 1.0 parts of wt aluminum sulfate and iron sulfate solution (the molar ratio of Al to Fe is 1:1), 30 parts of sodium copolyacrylate, and 10 parts of pH buffer solution with pH=7.0.

[0074] The preparation method of above-mentioned clay solidifying agent is with embodiment 1.

[0075] The use method of above-mentioned clay solidifying agent in clay solidification, comprises the following steps:

[0076] Mix 50 parts of quicklime with 1500 parts of clay A, stack and mature for 4 days under natural conditions to obtain mellow soil;

[0077] Stir and mix 60 parts of cement A...

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Abstract

The invention discloses an environment-friendly clay curing agent and its preparation method and use method. The clay curing agent comprises raw materials with the following mass components: 10-50 parts of vegetable oil, 10-30 parts of unsaturated fatty acid potassium salt, 5-50 parts of diffusing agent 20 parts, 0.01-0.5 parts of metal cation sulfate or hydrochloride, 10-50 parts of sodium copolyacrylate, 1-20 parts of pH buffer solution. The curing agent provided by the invention has good permeability, diffusivity, stability and environmental protection. When applied to clay strengthening, the obtained solidified soil can meet the construction requirements of the subgrade base layer and the waterproof layer of the subgrade, which can greatly save engineering construction Reduce costs, improve construction quality, and speed up construction progress.

Description

technical field [0001] The invention belongs to the technical field of curing agents, and in particular relates to a clay curing agent and its preparation method and use method. Background technique [0002] Clay easily absorbs water and swells, gelatinizes, and its strength decreases rapidly. In road construction, due to the poor water stability of clay, the strength of the paved roadbed is seriously insufficient after soaking in water, resulting in road surface collapse or obvious settlement, and the quality of the project cannot be guaranteed. In this case, it is often necessary to use hard materials such as sand, stone, and cement to reinforce it or even directly replace it with concrete. With the increase in the construction volume of various projects, more and more sand, stone and cement are required for construction, which not only increases the cost of construction, but also increases the burden on the natural environment, which is not conducive to sustainable devel...

Claims

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Application Information

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IPC IPC(8): C04B24/32C04B28/04
CPCC04B40/0039C04B28/04C04B2201/20C04B2201/50C04B24/08C04B24/085C04B24/32C04B24/283C04B24/16C04B22/148C04B24/2641C04B22/16C04B22/064C04B14/10C04B22/12C04B22/149
Inventor 陈正年刘云魏汝庆丁晨晟叶欣鑫程镕时
Owner NANJING INST OF TECH
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