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Industrial waste residue soil stabilizer and preparation method and construction method thereof

A technology of soil stabilizer and industrial waste, which is applied in the field of civil engineering and construction materials, can solve the problems of pollution, low utilization rate of solid waste, high storage cost, etc., and achieve the effect of broad application prospects, low cost, and wide sources

Active Publication Date: 2020-09-29
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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  • Industrial waste residue soil stabilizer and preparation method and construction method thereof
  • Industrial waste residue soil stabilizer and preparation method and construction method thereof
  • Industrial waste residue soil stabilizer and preparation method and construction method thereof

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 residue soil stabilizer. The industrial waste residue soil stabilizer is prepared from 5-50% of raw material steel slag powder, 20-40% of slag powder, 5-30%of fly ash, 8-25% of waste gypsum, 0-17% of coal gangue and 10-30% of carbide slag through the following method: firstly, raw materials including fly ash, coal gangue powder, waste gypsum, steel slagpowder and slag powder are sequentially added into a coulter type stirrer and are uniformly mixed at a high speed of 1500-2000 r / min for 20-30 min, finally, the carbide slag is added, stirring continues to be conducted for 10-20 min, and an obtained curing agent finished product is bagged, sealed and stored. The industrial waste residue soil stabilizer prepared by the invention can replace cementand lime to be applied to roadbed improvement and treatment, has the outstanding advantages of no calcination, energy conservation, environmental protection and the like, has obvious price advantagecompared with cement and lime, plays a positive role in promoting the resource utilization of industrial wastes such as fly ash, carbide slag, steel slag and the like, and has wide 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 Applications(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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