Some geomechanical properties of a biopolymer treated medium sand

Wiszniewski, Mateusz; Skutnik, Zdzisław; Biliniak, Marcin; Çabalar, Ali Fırat

doi:10.1515/sggw-2017-0016

Cited by 16 publications

(8 citation statements)

References 12 publications

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“…Therefore, relatively weaker specimens were prepared. The findings are in agreement with previous research [11,25,27,28]. Chang et al [25] investigated the effect of XG on the UCS of sand, sand with silt and high plasticity clay.…”

Section: Unconfined Compression Testsupporting

confidence: 91%

“…On the other hand, the highest increase in strength was achieved in the sand, which is not surprising when considering that the plain sand had a virtually negligible strength compared to other soils that had a significant amount of fine particles. The peak of the deviatoric stress of the plain sand was close to the results of other researches that performed triaxial tests on the plain poorly graded sand under similar confining pressures [11,28]. Furthermore, the same research showed that the addition of XG increases the peak deviatoric stress during the triaxial stress state.…”

Section: Unconsolidated Undrained Triaxial Testsupporting

confidence: 85%

“…They are present in the food industry, agriculture, cosmetic industry, and oil drilling industry [6][7][8][9][10]. Furthermore, their potential for the improvement of soil mechanical properties was investigated [11][12][13][14]. Some biopolymers proved effective in reducing the erosion of soil [15][16][17] and the collapsibility of soil [18].…”

Section: Introductionmentioning

confidence: 99%

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Study on Shear Strength of Xanthan Gum-Amended Soil

Soldo

Miletić

2019

Sustainability

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When construction work is planned on soil with inadequate shear strength, its engineering properties need to be improved. Chemical stabilization is one of the solutions for soil strength improvement. Currently, the most common additive that is used for chemical soil improvement is cement. Cement is an effective solution, but it has several negative effects on the environment. Therefore, the urges for environment-friendly solutions that can replace cement and show good potential for sustainable engineering are rising. One of the promising environment-friendly solutions is the use of biopolymers. Therefore, the main aim of the present study was to investigate the effect of the biopolymer xanthan gum on the strength of different types of soil. Xanthan gum was mixed with three different types of soil: sand, clay, and silty sand. The strength of treated and non-treated soil was experimentally investigated by performing unconfined compression, direct shear, and triaxial tests. From the results, it was observed that xanthan gum significantly increased the strength of each soil, which shows its major potential for the future of sustainable engineering.

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Section: Unconfined Compression Testsupporting

confidence: 91%

Section: Unconsolidated Undrained Triaxial Testsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Study on Shear Strength of Xanthan Gum-Amended Soil

Soldo

Miletić

2019

Sustainability

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“…Their advantage over the MICP treatment is that they can be used in both fine- and coarse-grained soils, and they do not generate effluent ammonia [ 14 , 15 ]. Up to now, several research studies have shown the positive biopolymer effect on soil-strength improvement, permeability reduction, and soil-collapsibility decrease [ 14 , 16 , 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Macroscopic Stress-Strain Response and Strain-Localization Behavior of Biopolymer-Treated Soil

2022

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The enhancement of soil engineering properties with biopolymers has been shown recently as a viable and environmentally benign alternative to cement and chemical stabilization. Interest in biopolymer-treated soil is evident from the upsurge of related research activities in the last five years, most of which have been experimental in nature. However, biopolymers have not yet found their way into engineering practice. One of the reasons for this may be the absence of computational models that would allow engineers to incorporate biopolymer-treated soil into their designs. Therefore, the main goal of this study is to numerically capture a macroscopic stress-strain response and investigate the effect of biopolymers on the onset of strain localization. Several diagnostic strain-localization analyses were conducted, thus providing strain and stress levels at the onset of strain localization, along with the orientations of the deformation band. Several unconfined compression and triaxial tests on the plain and biopolymer-treated soils were modeled. Results showed that biopolymers significantly improved the mechanical behavior of the soil and affected the onset of strain localization. The numerical results were confirmed by the digital image analysis of the unconfined compression tests. Digital image processing successfully captured high strain concentrations, which tended to occur close to the peak stress.

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“…Their advantage over the MICP treatment is that they can be used in both fineand coarse-grained soils, and they do not generate the effluent ammonia (Chang et al 2015;Aguilar et al 2016). Up to date, several research studies have shown the positive biopolymer effect on the soil strength improvement, permeability reduction, and soil collapsibility decrease (Chang et al 2015;Ayeldeen et al 2017;Wiszniewski et al 2017;Cabalar et al 2017;Soldo and Miletić 2019;Toufigh and Kianfar 2019;Soldo et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Macroscopic stress-strain response and strain localization behavior of biopolymer-treated soil

Soldo

Miletić

Aguilar

2021

Preprint

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Enhancement of soil engineering properties with biopolymers has been shown recently as a viable and environmentally benign alternative to cement and chemical stabilization. Interest in biopolymer-treated soil is evident from the upsurge of related research activities in the last five years, most of which have been of experimental nature. However, biopolymers have not yet found their way into engineering practice. One of the reasons for this may be the absence of computational models that would allow engineers to incorporate biopolymer-treated soil into their designs. Therefore, the main goal of this study is to numerically capture a macroscopic stress-strain response and investigate the effect of biopolymers on the onset of strain localization. Several diagnostic strain localization analyses were conducted, thus providing strain and stress levels at the onset of strain localization, along with the orientations of the deformation band. Several unconfined compression and triaxial tests on the plain and biopolymer-treated soils were modeled. Results showed that biopolymers significantly improved the mechanical behavior of the soil and affected the onset of strain localization. The numerical results were confirmed by the digital image analysis of the unconfined compression tests. Digital image processing successfully captured high strain concentrations, which tend to occur close to the peak stress.

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Some geomechanical properties of a biopolymer treated medium sand

Cited by 16 publications

References 12 publications

Study on Shear Strength of Xanthan Gum-Amended Soil

Study on Shear Strength of Xanthan Gum-Amended Soil

Macroscopic Stress-Strain Response and Strain-Localization Behavior of Biopolymer-Treated Soil

Macroscopic stress-strain response and strain localization behavior of biopolymer-treated soil

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