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Inorganic binder stabilized soil as road subbase filling and production method of inorganic binder stabilized soil

An inorganic binder and soil stabilizing technology, applied in roads, roads, buildings, etc., can solve problems such as soil calcification, achieve the effects of reducing project cost, saving resources, and being easy to promote

Inactive Publication Date: 2016-11-16
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbide slag is not only the key pollution source of the sewage pipe network, but also can easily cause serious calcification of the soil when piled up

Method used

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  • Inorganic binder stabilized soil as road subbase filling and production method of inorganic binder stabilized soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The present embodiment is prepared as the inorganic binder stabilized soil of the road sub-base filler according to the following steps:

[0038] The first step is to take 50kg of representative soil samples with natural moisture content, crush them and pass through a 20mm sieve, mix the soil samples under the sieve evenly, and measure the natural moisture content of the soil samples; weigh 6% carbide slag according to the mass percentage , 20% iron tailings sand and 74% dried soil; first fully mix the iron tailings sand and dried soil sample, and then stir evenly with calcium carbide slag to obtain mixed soil;

[0039] In the second step, the optimal water content of the mixed soil is determined to be 11.9% according to the heavy compaction test in the "Highway Soil Test Regulations" (JTG E40-2007);

[0040] In the third step, according to the optimal water content determined in the second step, adjust the water content of the mixed soil obtained in the first step so a...

Embodiment 2

[0044] The present embodiment is prepared as the inorganic binder stabilized soil of the road sub-base filler according to the following steps:

[0045] The first step is to take 50kg of representative soil samples with natural moisture content, crush them and pass through a 20mm sieve, mix the soil samples under the sieve evenly, and measure the natural moisture content of the soil samples; weigh 8% carbide slag according to the mass percentage , 20% iron tailings and 72% dried soil, fully mix the iron tailings and dried soil samples first, and then stir with calcium carbide slag evenly to obtain mixed soil;

[0046] The second step is to determine the optimal moisture content of the mixed soil to be 13.8% according to the heavy compaction test in the "Highway Soil Test Regulations" (JTG E40-2007);

[0047] In the third step, according to the optimal moisture content determined in the second step, adjust the moisture content of the mixed soil obtained in the first step to kee...

Embodiment 3

[0051] The present embodiment is prepared as the inorganic binder stabilized soil of the road sub-base filler according to the following steps:

[0052] The first step is to take 50kg of representative soil samples with natural moisture content, crush them and pass through a 20mm sieve, mix the soil samples under the sieve evenly, and measure the natural moisture content of the soil samples; weigh 6% carbide slag according to the mass percentage , 30% iron tailings sand and 64% dried soil, the iron tailings sand and dried soil sample are fully mixed first, and then mixed with calcium carbide slag evenly to obtain mixed soil;

[0053] The second step is to determine the optimum moisture content of the mixed soil to be 14.0% according to the heavy compaction test in the "Highway Soil Test Regulations" (JTG E40-2007);

[0054] In the third step, according to the optimal moisture content determined in the second step, adjust the moisture content of the mixed soil obtained in the f...

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Abstract

The invention provides an inorganic binder stabilized soil as road subbase filling and a production method of the inorganic binder stabilized soil. Industrial waste iron tailing sand and carbide slag are used as inorganic binders; the iron tailing sand is large in granule intensity, so that a framework effect is achieved in a mixture, the intensity of the stabilized soil is improved, and a physical modification effect is achieved for a soil mass; and carbide slag hydrates not only can be used for filling pores, but also have the effect of cementation, so that a chemical modification effect is achieved for the soil mass. A method that two kinds of inorganic industrial waste are used for physical and chemical composite modification of the soil mass, is adopted by the invention. The industrial waste iron tailing sand and the carbide slag are doped in the soil, so that the internal structure of the soil mass is improved, and the density, the intensity and the water stability of the soil mass are improved. The production method disclosed by the invention has the characteristics of being simple in technique, low in cost, resource-saving, and easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of geological disaster treatment and geotechnical engineering, and in particular relates to an inorganic binder stabilized soil used as a road subbase filler. Background technique [0002] Since the reform and opening up, my country's road construction has developed by leaps and bounds. The "Twelfth Five-Year Plan" period is an extraordinary five years in the development of my country's transportation. The road network continues to expand. The total mileage of national highways has reached 4.57 million kilometers, the mileage of expressways has exceeded 120,000 kilometers, the "7918" national high-speed network has been basically completed, the mileage of rural roads has exceeded 3.97 million kilometers, and 81% of the official villages in the western region have been unobstructed. The technical level of national and provincial arterial highways has been gradually improved, and 96% of the counties in the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12E01C3/00
CPCC04B28/12C04B2111/0075E01C3/00E01C3/003C04B18/12C04B14/361
Inventor 储诚富赵辉陈天虎董满生查甫生
Owner HEFEI UNIV OF TECH
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