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A kind of industrial waste residue soil curing agent and its preparation method and construction method

The technology of soil solidifying agent and industrial waste residue is applied in the field of civil engineering and building materials, which can solve the problems of low utilization rate of solid waste, high storage cost, pollution, etc., and achieve the effects of low cost, wide source and broad application prospect.

Active Publication Date: 2022-01-25
HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, as a large industrial country, my country produces a large amount of solid waste such as fly ash, steel slag, and coal gangue every year. The utilization rate of these solid wastes is low, the pollution is serious, and the storage cost is high.

Method used

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  • A kind of industrial waste residue soil curing agent and its preparation method and construction method
  • A kind of industrial waste residue soil curing agent and its preparation method and construction method
  • A kind of industrial waste residue soil curing agent and its preparation method and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The industrial waste slag soil curing agent of the present invention is prepared by 30% of steel slag powder, 30% of slag powder, 10% of fly ash, 10% of phosphogypsum, 5% of coal gangue powder, and 15% of carbide slag;

[0049] During preparation, first add fly ash, coal gangue powder, phosphogypsum, steel slag powder and slag powder into the coulter mixer in sequence, mix at high speed for 30 minutes at a speed of 1500r / min, finally add calcium carbide slag, and continue mixing for 20 minutes After a few minutes, pack it into a bag and keep it sealed.

[0050] Mix the prepared industrial waste soil stabilizer into the soil according to 3%, 6%, 9%, and 12% of the dry weight of the soil, and measure the optimum moisture content of the mixture; add water and mix with the optimum moisture content of the mixture Uniformly compacted and formed, and maintained according to the test method. After reaching the age, test the properties of the solidified soil. The test results a...

Embodiment 2

[0052] The industrial waste slag soil curing agent of the present invention is prepared by 20% of steel slag powder, 30% of slag powder, 15% of fly ash, 12% of mold gypsum, 5% of coal gangue powder, and 18% of carbide slag;

[0053] The preparation method is the same as in Example 1.

[0054] Mix the prepared industrial waste soil solidifier into the soil according to 6% of the dry weight of the soil, and measure the optimal moisture content of the mixture; add water to mix and evenly compact the mixture according to the test method Carry out maintenance, and after reaching the age, test the various properties of the solidified soil. The test results are shown in Table 7 and Table 8 below.

Embodiment 3

[0056] The industrial waste slag soil curing agent of the present invention is prepared by 20% of steel slag powder, 30% of slag powder, 25% of fly ash, 10% of mold gypsum, 5% of coal gangue powder, and 10% of carbide slag;

[0057] The preparation method is the same as in Example 1.

[0058] Mix the prepared industrial waste soil solidifier into the soil according to 6% of the dry weight of the soil, and measure the optimal moisture content of the mixture; add water to mix and evenly compact the mixture according to the test method Carry out maintenance, and after reaching the age, test the various properties of the solidified soil. The test results are shown in Table 7 and Table 8 below.

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Abstract

The invention discloses an industrial waste slag soil solidifying agent, which is composed of 5-50% of steel slag powder, 20-40% of slag powder, 5-30% of fly ash, 8-25% of waste gypsum and 0-17% of coal gangue , calcium carbide slag 10-30% is prepared according to the following method: firstly, the raw materials fly ash, coal gangue powder, waste gypsum, steel slag powder, and slag powder are added to the coulter mixer in sequence, and the mixture is mixed at a speed of 1500-2000r / min. , and mix uniformly at high speed for 20-30 minutes, finally add calcium carbide slag, continue stirring for 10-20 minutes, and store the finished curing agent in bags and sealed. The industrial waste slag soil curing agent prepared by the invention can replace cement and lime and be used in roadbed improvement treatment. The resource utilization of industrial waste such as steel slag has played a positive role in promoting and has extensive and far-reaching significance.

Description

technical field [0001] The invention relates to civil engineering and construction materials, in particular to an industrial waste residue soil curing agent, and also relates to a preparation method and a construction method of the soil curing agent. Background technique [0002] At present, in the field of highway engineering construction, the general method of soil improvement and treatment is to add cement, lime and other solidification materials into the soil to improve the engineering performance of the soil. However, the rapid development of the cement and lime industry has brought environmental problems that cannot be ignored. For example, the production of cement and lime will produce different degrees of pollution problems, and the energy and resources required for cutting mountains and rocks are huge, which will cause water and soil erosion. And ecological imbalance, and then aggravate the deterioration of the natural environment. [0003] At the same time, althou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/08E01C3/00E01C3/04C09K103/00
CPCC09K17/08E01C3/003E01C3/04C09K2103/00
Inventor 王笑风杨博张晓果万晨光刘建飞侯明业
Owner HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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