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Xanthan biopolymer-based soil treatment effect on kaolinite clay fabric and structure using XRD analysisoa mark
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Publication Year
2023-12-01
Journal
Scientific Reports
Publisher
Nature Research
Citation
Scientific Reports, Vol.13 No.1
All Science Classification Codes (ASJC)
Multidisciplinary
Abstract
In this study, we evaluated the impact of xanthan gum biopolymer (XG) on kaolinite fabrics using X-ray diffraction (XRD) and the ensuing changes in the compaction behavior and shear resistance of kaolinite soils. The XRD peak analysis revealed that XG changed kaolinite fabrics into face-to-face associations. Moreover, environmental scanning electron microscopy showed the formation of XG-bridges between kaolinite particles, resulting in the change in fabrics and subsequently improving the resistance of kaolinite to external forces. Consequently, as XG content increased, the maximum dry density decreased, and the undrained shear strength increased. The viscous XG hydrogels produced a higher optimal moisture content and increased resistance to shear force. This study showed that XG affects the mechanical properties of kaolinite through changing kaolinite fabrics (up to 0.5% of the XG-to-kaolinite mass ratio) and absorbing pore-fluids (excess XG over 0.5% of the XG-to-kaolinite mass ratio).
ISSN
2045-2322
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/33542
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85165400370&origin=inward
DOI
https://doi.org/2-s2.0-85165400370
Journal URL
https://www.nature.com/srep/
Type
Article
Funding
This work was supported by the National Research Foundation of Korea (NRF) Grants funded by the Korea Government (MSIT) (No. 2023R1A2C300559611 and No. 2022R1A2C2091517). We would like to thank Editage [ http://www.editage.com ] for editing and reviewing this manuscript for English language.
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Chang, Il Han Image
Chang, Il Han장일한
Department of Civil Systems Engineering
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