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Waste tire particle modified expansive soil roadbed filler and preparation method thereof

A technology of discarded tires and soil roadbeds, which is applied in the field of civil engineering and road engineering, can solve problems such as high cost, poor effect, and environmental pollution, and achieve the effects of low cost, reduced emissions, and improved expansion and contraction

Pending Publication Date: 2022-07-15
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the modified expansive soil subgrade filling method in the prior art has problems such as poor effect, high cost and environmental pollution.

Method used

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  • Waste tire particle modified expansive soil roadbed filler and preparation method thereof

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Effect test

Embodiment 1

[0034] In this embodiment, a waste tire particle modified expansive soil roadbed filler, in terms of dosage, the components include: cement: 3%, tire particles: 3%, water: 18%-19%, and the balance is expansive soil.

[0035] The cement is early strength Portland cement.

[0036] Tire particles are materials made by crushing and grinding waste tires, and the particle size is 0.1mm.

[0037] The expansive soil is taken from Ningming County, Chongzuo City, Guangxi. It is a high liquid limit clay with a free expansion rate of more than 90%, which is a strong expansive soil.

[0038] Tire particle content refers to the ratio of tire particle mass to expansive soil dry soil mass, and cement content refers to the ratio of cement mass to expansive soil dry soil mass.

[0039] The preparation method of waste tire particle modified expansive soil roadbed filler, comprising the following steps:

[0040] S1: put the expansive soil in an oven to dry for 24 hours, the oven temperature is ...

Embodiment 2

[0045] In this embodiment, a waste tire particle modified expansive soil roadbed filler, in terms of dosage, the components include: cement: 3%, tire particles: 4.5%, water: 18%-19%, and the balance is expansive soil.

[0046] The cement is early strength Portland cement.

[0047] Tire particles are materials made by crushing and grinding waste tires, and the particle size is 0.1mm.

[0048] The expansive soil is taken from Ningming County, Chongzuo City, Guangxi. It is a high liquid limit clay with a free expansion rate of more than 90%, which is a strong expansive soil.

[0049] Tire particle content refers to the ratio of tire particle mass to expansive soil dry soil mass, and cement content refers to the ratio of cement mass to expansive soil dry soil mass.

[0050] The preparation method of waste tire particle modified expansive soil roadbed filler, comprising the following steps:

[0051] S1: put the expansive soil in an oven to dry for 24 hours, the oven temperature i...

Embodiment 3

[0056] In this embodiment, a waste tire particle modified expansive soil subgrade filler, in terms of dosage, the components include: cement: 3%, tire particles: 6%, water: 18%-19%, and the balance is expansive soil.

[0057] The cement is early strength Portland cement.

[0058] Tire particles are materials made by crushing and grinding waste tires, and the particle size is 0.1mm.

[0059] The expansive soil is taken from Ningming County, Chongzuo City, Guangxi. It is a high liquid limit clay with a free expansion rate of more than 90%, which is a strong expansive soil.

[0060] Tire particle content refers to the ratio of tire particle mass to expansive soil dry soil mass, and cement content refers to the ratio of cement mass to expansive soil dry soil mass.

[0061] The preparation method of waste tire particle modified expansive soil roadbed filler, comprising the following steps:

[0062] S1: put the expansive soil in an oven to dry for 24 hours, the oven temperature is...

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Abstract

The invention discloses a waste tire particle modified expansive soil roadbed filler and a preparation method thereof, and the modified expansive soil roadbed filler comprises the following components by mixing: 3% of cement, 3%-6% of tire particles, 18%-19% of water, and the balance of expansive soil. The cement and the tire particles are doped into the expansive soil, the water content is controlled to be 18%-19%, the mixture is fully stirred to be uniform, and a finished product of the modified expansive soil roadbed filler is obtained. The modified expansive soil roadbed filler can effectively improve the expansive property of expansive soil and increase the CBR value of the expansive soil, meanwhile, resource utilization of waste tires can be achieved, and the modified expansive soil roadbed filler has good economic benefits and social benefits.

Description

technical field [0001] The invention relates to the technical field of civil engineering and road engineering, in particular to a waste tire particle modified expansive soil roadbed filler and a preparation method thereof. Background technique [0002] Expansive soils are a class of "deceptive" cohesive soils with high liquid limit. In the past, the understanding of expansive soil was not deep enough. Because of its high strength and low compressibility, it was easily regarded as a good natural foundation. In fact, expansive soil has obvious expansion and shrinkage, multiple cracks, over-consolidation and strength attenuation. These characteristics often cause many engineering disasters and cause great economic losses to the country and the people. [0003] Since the reform and opening up, my country has vigorously developed transportation infrastructure, and it is inevitable to encounter expansive soil subgrade sections in construction. Aiming at the problem of expansive ...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B2201/50C04B18/22C04B14/104
Inventor 王协群张伊于祥伟彭琛李智奇
Owner WUHAN UNIV OF TECH
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