Effects of freeze-thaw cycles on the unconfined compressive strength of straw fiber-reinforced soil

Liu, Chao; Lv, Yaru; Yu, Xiaojuan; Wu, Xun

doi:10.1016/j.geotexmem.2020.03.004

Cited by 88 publications

(23 citation statements)

References 37 publications

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“…Additional deformation occurred when external pressure exceeded gravity stress. However, additive (e.g., lime, fibers, quartz sands and sodium silicate et al) can improve the strength behavior of frozen-thawed soil, and the reinforcing mechanism was still not fully understood [77,78].…”

Section: Soil Propertiesmentioning

confidence: 99%

The Influence Mechanism of Freeze-Thaw on Soil Erosion: A Review

Zhang

Ren

et al. 2021

Water

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As an important type of soil erosion, freeze-thaw erosion occurs primarily at high latitude and altitude. The overview on the effect of freeze-thaw on soil erosion was provided. Soil erosion was affected by freeze-thaw processes, as thawing and water erosion reinforce each other. Remote sensing provided an unprecedented approach for characterizing the timing, magnitude, and patterns of large-scale freeze-thaw and soil erosion changes. Furthermore, the essence of soil freeze-thaw was the freeze and thaw of soil moisture in the pores of soil. Freeze-thaw action mainly increased soil erodibility and made it more vulnerable to erosion by destroying soil structure, changing soil water content, bulk density, shear strength and aggregate stability, etc. However, the type and magnitude of changes of soil properties have been related to soil texture, water content, experimental conditions and the degree of exposure to freeze-thaw. The use of indoor and field experiments to further reveal the effect of freeze-thaw on soil erosion would facilitate improved forecasting, as well as prevention of soil erosion during thawing in regions with freeze-thaw cycles.

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Section: Soil Propertiesmentioning

confidence: 99%

The Influence Mechanism of Freeze-Thaw on Soil Erosion: A Review

Zhang

Ren

et al. 2021

Water

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“…They also observed that with the addition of more than 0,4% fiber, the values of Young's Modulus corresponding to 1% axial strain increased. Liu et al (2020), in order to investigate the effects of freeze-thaw cycles on the strength of 0,2% and 0,4% cotton straw fiber reinforced clay soil they placed specimens for 12 hours in a freezing container at -20°C, then removed and placed in thawing container at 20°C for 12 hours. As a result, they reported that the cotton straw fiber not only increased the UCS of the soil, but also reduced the softening degree of the soil exposed to freeze-thaw cycles in the absence of confining pressure conditions.…”

Section: Jute Fibermentioning

confidence: 99%

Zeminlerin Doğal ve Sentetik Lifler ile Güçlendirilmesi Üzerine Bir Derleme Çalışması

Yazici

Keskin

2021

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Soil reinforcement techniques are frequently used to improve the engineering properties of soils in geotechnical engineering applications. For this purpose, natural and synthetic fibers have managed to attract the attention of geotechnical engineerings as an alternative reinforcement technique to traditional stabilization methods due to their sufficient strength, low cost and easily availability. The purpose of this study is to create a review on the effects of parameters such as fiber type, physical and mechanical properties of fiber, fiber quantity, fiber length and fiber surface roughness on the engineering properties of different types of soils, according to data of scientific studies on the reinforced-soils using different types of natural and synthetic fibers. Besides, this study contains information about the effects of water in the soil matrix on the behavior of natural fibers and the recommended treatments, in addition to the mechanical behavior of the fiber-soil composite.

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“…Generally, when the soil structure becomes looser, the mechanical properties and microstructure of the soil change significantly (Figure 2), and additional deformation occurs when external pressure exceed the gravity stress after the FTCs (Liu et al 2016;Karumanchi et al 2020). However, additive components could improve the strength behaviour of FT soils, though the reinforcing mechanism is still not fully understood (Nguyen et al 2019;Liu et al 2020).…”

Section: Soil Mechanical Propertiesmentioning

confidence: 99%

Effects of freeze-thaw on soil properties and water erosion

Sun¹,

Ren²,

Ding³

et al. 2021

Soil Water Res.

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Freeze-thaw erosion occurs primarily at high latitudes and altitudes. Temperature controlled freeze-thaw events dislodge soil particles and serve as a catalyst for erosion. This review paper provided an overview of the effects of freeze-thaw on soil properties and water erosion. The process of freeze-thaw cycles results in temporary and inconsistent changes in the soil moisture, and affects the soil’s mechanical, physical and chemical properties, such as the soil moisture content, porosity, bulk density, aggregates stability, shear strength and organic matter content and so on. The variation trend and range of the soil properties were related to the soil texture, water content and freeze-thaw degree. Furthermore, the soil erosion was affected by the freeze-thaw processes, as thawing and water erosion reinforce each other. However, research of different experimental conditions on indoor simulations have numerous limitations compared with field experiments. The use of indoor and field experiments to further reveal the freeze-thaw effect on the soil erosion would facilitate improved forecasting.

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Effects of freeze-thaw cycles on the unconfined compressive strength of straw fiber-reinforced soil

Cited by 88 publications

References 37 publications

The Influence Mechanism of Freeze-Thaw on Soil Erosion: A Review

The Influence Mechanism of Freeze-Thaw on Soil Erosion: A Review

Zeminlerin Doğal ve Sentetik Lifler ile Güçlendirilmesi Üzerine Bir Derleme Çalışması

Effects of freeze-thaw on soil properties and water erosion

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