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A kind of soft soil curing agent and preparation method thereof

A curing agent and soft soil technology, applied in the field of environmental restoration, can solve problems such as dust pollution, increased production costs, and threats to the health of mine employees, achieving high compressive and flexural strength, easy construction, and excellent consolidation performance Effect

Active Publication Date: 2022-07-12
肇庆市武大环境技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of soft soil curing agent, because of its fine particle size, it will cause a certain degree of dust pollution during use, which poses a great threat to the health of mine employees, especially pneumoconiosis
At present, soft soil curing agents are mainly in powder form, and the research on soft soil curing agents is still in its infancy. The production of soft soil curing agents with pure industrial raw materials will inevitably increase its production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Activation of tailings: caustic soda and tailings in Table 1 are uniformly mixed in a ratio of 0.8:1 and then calcined and activated at a temperature of 600 ° C for 2 hours to obtain activated tailings;

[0030] (2) According to the activated mineral material: water: SJ-30 liquid resin: ethanol: nitric acid: glass fiber mass ratio = 60: 13.8: 20: 3: 3: 0.2, uniformly mix under the condition of continuous stirring, that is, soft soil solidification is obtained agent;

[0031] (3) the above-mentioned table 1 tailings are cured by using the obtained soft soil curing agent, and the ratio of the tailings and the soft soil curing agent is 96:4, and the obtained mixture material is prepared into a 5*5 cylindrical test block, at a temperature of 20 ° C , under the curing conditions of 92% humidity for a period of time, the unconfined compressive strength test was carried out. The test results are shown in Table 2:

[0032] Table 2 Unconfined compressive strength of test bl...

Embodiment 2

[0036] (1) Activation of tailings: caustic soda and tailings in Table 1 are uniformly mixed at a ratio of 1:1.5 and then calcined and activated at a temperature of 600° C. for 2 hours to obtain activated tailings;

[0037] (2) According to the activated mineral material: water: SJ-30 liquid resin: ethanol: nitric acid: glass fiber = 70: 13.9: 10: 2: 4: 0.1, uniformly mix under the condition of continuous stirring, that is, the soft soil curing agent is obtained;

[0038] (3) the above-mentioned table 1 tailings are cured by using the obtained soft soil curing agent, and the ratio of the tailings and the soft soil curing agent is 97:3, and the obtained mixture material is prepared into a 5*5 cylindrical test block, at a temperature of 20 ° C , under the curing conditions of 92% humidity for a period of time, the unconfined compressive strength test was carried out. The test results are shown in Table 2:

[0039] Table 3 Unconfined compressive strength of test blocks obtained wi...

Embodiment 3

[0043] (1) Activation of tailings: caustic soda and tailings in Table 1 are uniformly mixed in a ratio of 1.5:1 and then calcined and activated at a temperature of 600 ° C for 2 hours to obtain activated tailings;

[0044] (2) According to the activated mineral material: water: SJ-30 liquid resin: ethanol: nitric acid: glass fiber mass ratio = 60: 30.9: 4: 3: 2: 0.1, uniformly mix under the condition of continuous stirring, that is, soft soil solidification is obtained agent;

[0045](3) the above-mentioned table 1 tailings are cured by using the obtained soft soil curing agent, and the ratio of the tailings and the soft soil curing agent is 96:4, and the obtained mixed material is prepared into a 5*5 cylindrical test block, at a temperature of 20 ° C , under the curing conditions of 92% humidity for a period of time, the unconfined compressive strength test was carried out. The test results are shown in Table 4:

[0046] Table 4 Unconfined compressive strength of test blocks...

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Abstract

The invention discloses a soft soil curing agent and a preparation method thereof. The soft soil curing agent comprises components such as activated tailings, alcohol compounds, glass wool, inorganic acid solution, water, liquid resin, etc., wherein the activated tailings are composed of tailings It is obtained by calcination and activation with alkaline activation activator. The soft soil curing agent is used in soil consolidation, which reduces dust pollution, and at the same time can significantly improve the compressive and flexural strength of the consolidated body. Construction, low production cost, effectively realize the in-situ harmless absorption of industrial tailings, and meet the green production requirements of waste treatment.

Description

technical field [0001] The invention relates to a soft soil solidifying agent, in particular to a soft soil solidifying agent prepared by using tailings as the main raw material, after being activated by high temperature alkali melting, and prepared with alcohols, glass wool, acid, liquid resin, water, etc. The preparation method belongs to the technical field of environmental restoration. Background technique [0002] In recent years, the rapid development of China's economy has benefited from the improvement of modern mining technology. However, with the increase of mining resources, a large number of tailings are left behind while obtaining the raw materials needed for people's life and production. Among them, silica-alumina tailings, as a typical tailings, are among the top in the discharge quantity of all tailings. The general characteristics of silica-alumina tailings are complex composition, fine particle size, large emission, and contain some heavy metals and other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02C04B7/24C04B7/42C04B7/44
CPCC04B28/02C04B7/243C04B7/424C04B7/44C04B2111/00732C04B2111/00767C04B2103/0045C04B24/02C04B22/085C04B14/42Y02W30/91
Inventor 侯浩波张鹏举叶非华韩旭纪建业江俊锋李银生孙琪
Owner 肇庆市武大环境技术研究院
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