Strengthening potential of xanthan gum biopolymer in stabilizing weak subgrade soil

Hamza, Muhammad; Nie, Zhihong; Ijaz, Nauman; Ijaz, Zain; Rehman, Zia ur

doi:10.1007/s10098-022-02347-5

Cited by 32 publications

(17 citation statements)

References 37 publications

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“…Especially, xanthan gum can better adapt to different temperature and pH conditions 24 , and compared with other biopolymers, it has a larger production volume and relatively lower price 25 . As a green material, it has been used to improve various poor soils, such as high liquid limit coarse-grained soil 26 , clay [27][28][29] , sandy soil 30 , organic peat soil 31 etc. The mechanical parameters such as unconfined compressive strength and shear strength of the improved soil have been significantly improved.…”

Section: Openmentioning

confidence: 99%

Experimental study on mechanical and hydraulic properties of xanthan gum improved low liquid limit silty soil

Zhang,

Cao,

Zhang

2024

Sci Rep

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The low liquid limit silty soil in the North China plain area is generally unsuitable for direct use as roadbed and slope soil. In order to improve the performance of low liquid limit silty soil, xanthan gum was used as an improver. Through a series of tests, the improvement effect of xanthan gum on low liquid limit silty soil was studied. The test results showed that Xanthan gum as an improver could significantly improve the unconfined compressive strength of silty soil. With the increase in dosage and curing age, the unconfined compressive strength of improved silty soil continued to improve and eventually tended to stabilize. The optimal dosage and curing period were 2% and 7 days, respectively. In addition, Xanthan gum could greatly improve the permeability and disintegration of low liquid limit silty soil. The permeability coefficient of improved silty soil with a content of 0.75% Xanthan gum and a 7-day curing period was 4.73 × 10−4 m·s−1, which was only 1.10% of that of plain silty soil at the same curing period. After immersion in water for 12 h, the soil only experienced slight disintegration. The scanning electron microscope image showed that the gel generated by the hydration reaction of Xanthan gum could improve the compactness and integrity of the soil by filling the voids, thus significantly improving the mechanical and hydraulic properties of the low liquid limit silty soil.

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Section: Openmentioning

confidence: 99%

Experimental study on mechanical and hydraulic properties of xanthan gum improved low liquid limit silty soil

Zhang,

Cao,

Zhang

2024

Sci Rep

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“…Untreated soils are types of loose, loosely compacted soils that can be unstable and can cause problems for building foundations. Construction on untreated soils can lead to serious consequences, such as cracks in building structures and foundations, also highlighting studies that identify zones of soil vulnerability characterized by lower soil strengths, Atterberg limits exceeding construction guidelines, and areas prone to sensitive soil conditions 1 – 3 . Common techniques for improving soils include deep soil mixing, stone columns, jet grouting, pre-loading and related methods, but these techniques may not be sufficient for some types of soils.…”

Section: Introductionmentioning

confidence: 99%

“…Additives can include traditional stabilizers like lime, cement, fly-ash, fiber-reinforced cemented, coal wasted, and related additives 4 – 8 . A few researchers evaluated the role of novel stabilizers with low carbon footprint and how the current study fits into the broader context in soil stabilization 1 – 3 , 9 – 12 . Each of these materials has its own advantages and disadvantages, and it is important to study the differences between them to understand the best options for improving untreated soils 13 .…”

Section: Introductionmentioning

confidence: 99%

Micro- and nano-Illite to improve strength of untreated-soil as a nano soil-improvement (NSI) technique

Cheraghalikhani,

Niroumand,

Balachowski

2024

Sci Rep

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Soil stabilization is a technique of improving the geotechnical properties of soils for various engineering applications. However, conventional stabilizers such as cement and lime have some limitations, such as high cost, environmental impact, and durability issues. Therefore, there is a need for alternative and innovative stabilizers that can overcome these challenges. This study introduces nano-Illite, a type of clay mineral, as a novel and effective soil stabilizer. Nano-Illite can form nano-cementation (NC) in soil, which is a process of enhancing the durability of various building materials. NC is also known as nano soil-improvement (NSI), a technique that has been developed in recent years. Four formulations of micro- and nano-Illite with concentrations of 0, 1, 2, and 3% were separately added to soil samples. The unconfined compressive strength (UCS) and the secant modulus at 50% of peak stress (E50) of the treated samples were measured and compared with the untreated samples. The results showed that 3% nano-Illite increased the UCS of soil by more than 2.2 times and the E50 by more than 1.5 times after 7 days of curing. Micro-Illite also improved the UCS and E50 of soil, but to a lesser extent. X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray diffraction (XRD) analyses revealed the micro- and nano-structures of the soil specimens and the performance of Illite as a nano-additive. This research demonstrates the effectiveness of nano-Illite in soil improvement as a NSI technique, and its potential to replace or reduce the use of conventional stabilizers. This study also contributes to the understanding of the mechanisms and factors that influence the NC process in soil.

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“…The use of polysaccharides led to an increase in the optimal water content (OWC) required to achieve the necessary plasticity of the clay mass. Ayeldeen et al (2016), Dehghan et al (2019), Hamza et al (2022), andMuguda et al (2020) showed an increase in OWC of 1-4%, depending on the type of polysaccharide used and its amount. The effect was associated with the ability of polysaccharides to interact with water: hydrophilic groups of polysaccharides attract and partially bond water molecules (Hamza et al, 2022).…”

Section: Physical Propertiesmentioning

confidence: 97%

“…As presented in Table 1.2, under the column "special curing conditions", the "dry mixing method" or "wet mixing method" definitions indicate different approaches to using polysaccharides in the modification of clay-based materials. The "dry mixing" method mainly involves mixing raw clay/earth/soil with a certain amount of dry polysaccharide, with further addition of water (Hamza et al, 2022). The "wet mixing" method mostly involves dissolving the required amount of polysaccharide in the solvent (usually water) and then applying the resulting solution to dry clay (Chang et al, 2015a;Fatehi et al, 2023).…”

Section: Application Of Biopolymers In Clay Compositesmentioning

confidence: 99%

Research of structure and durability of natural polymer modified clays

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Vadovasdr. Olga KIZINIEVIČ (Vilniaus Gedimino technikos universitetas, medžiagų inžinerija -T 008).Vilniaus Gedimino technikos universiteto medžiagų inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas dr. Viktor GRIBNIAK (Vilniaus Gedimino technikos universitetas, medžiagų inžinerija -T 008). Nariai:dr. Agnė KAIRYTĖ (Vilniaus Gedimino technikos universitetas, medžiagų inžinerija -T 008), prof. habil. dr. Aivaras KAREIVA (Vilniaus universitetas, chemija -N 003), doc. dr. Šarūnas SKUODIS (Vilniaus Gedimino technikos universitetas, statybos inžinerija -T 002), prof. dr. Jiri ZACH (Brno technologijos universitetas, Čekija, medžiagų inžinerija -T 008). Disertacija bus ginama viešameMedžiagų inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2024 m. gegužės 15 d. 10 val. Vilniaus Gedimino technikos universiteto SRA-I posėdžių salėje.

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Strengthening potential of xanthan gum biopolymer in stabilizing weak subgrade soil

Cited by 32 publications

References 37 publications

Experimental study on mechanical and hydraulic properties of xanthan gum improved low liquid limit silty soil

Experimental study on mechanical and hydraulic properties of xanthan gum improved low liquid limit silty soil

Micro- and nano-Illite to improve strength of untreated-soil as a nano soil-improvement (NSI) technique

Research of structure and durability of natural polymer modified clays

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