Effects of Xanthan gum biopolymer on soil strengthening

Chang, Ilhan; Im, Jooyoung; Prasidhi, Awlia Kharis; Cho, Gye-Chun

doi:10.1016/j.conbuildmat.2014.10.026

Cited by 504 publications

(266 citation statements)

References 30 publications

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“…SEM images of sand-clay-biopolymer mixtures show that biopolymers directly bond with kaolinite particles, producing accumulated face-to-face clay layers, while sand surfaces remain clean or only film-type coats form around particles (Figure 4). Thus, the strengthening is maximized in the presence of clayey particles due to the hydrogen and ionic bonding between the biopolymers and clay particles, which have electrical charges [103,106]. However, this does not mean that biopolymers have a negligible impact in terms of their use with sand particles, because well-graded soil with coarse particles treated with biopolymers shows higher strength than that obtained with pure clay, such as kaolinite [103].…”

Section: How Biopolymers Strengthen Soilmentioning

confidence: 96%

“…Xanthan gum has been introduced to geotechnical engineering to reduce the hydraulic conductivity of silty sand via pore filling [94,101] as well as to increase the undrained shear strength of soil by increasing the liquid limit [102]. Another recent study has studied possibilities for using xanthan gum as a soil strengthener, and showed that xanthan gum preferentially forms firm xanthan gum-clayey soil matrices via hydrogen bonding [103].…”

Section: Xanthan Gummentioning

confidence: 99%

“…Thus, the strengthening is maximized in the presence of clayey particles due to the hydrogen and ionic bonding between the biopolymers and clay particles, which have electrical charges [103,106]. However, this does not mean that biopolymers have a negligible impact in terms of their use with sand particles, because well-graded soil with coarse particles treated with biopolymers shows higher strength than that obtained with pure clay, such as kaolinite [103]. Figure 5 shows the inter-particle cohesion and friction angle variation of 1% gellan gum biopolymer mixed soils, evaluated via direct shear tests.…”

Section: How Biopolymers Strengthen Soilmentioning

confidence: 99%

“…Specifically, it has been reported that a 0.5% biopolymer mix is necessary to achieve strength levels that are equivalent to or even higher than those for 10% OPC-soil mixtures [98]. In addition, unlike other ground improvement methods, biopolymers work well in the presence of fine soils [103]. Table 2.…”

Section: Hydro-dependency and Clogging Effect Of Biopolymersmentioning

confidence: 99%

“…Table 2. Overview of ground improvement methods (after [7,72,98,103,[114][115][116][117] Moreover, biopolymers can be introduced into the soil by various practical modes of application including mixing, injection, spraying, and grouting, and they can be used for building materials, earth pavement, and farmland erosion prevention (Figure 7). Furthermore, biopolymers form a stable gel matrix inside soil that does not damage the local ecosystem.…”

Section: Hydro-dependency and Clogging Effect Of Biopolymersmentioning

confidence: 99%

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Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering

2016

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Soil treatment and improvement is commonly performed in the field of geotechnical engineering. Methods and materials to achieve this such as soil stabilization and mixing with cementitious binders have been utilized in engineered soil applications since the beginning of human civilization. Demand for environment-friendly and sustainable alternatives is currently rising. Since cement, the most commonly applied and effective soil treatment material, is responsible for heavy greenhouse gas emissions, alternatives such as geosynthetics, chemical polymers, geopolymers, microbial induction, and biopolymers are being actively studied. This study provides an overall review of the recent applications of biopolymers in geotechnical engineering. Biopolymers are microbially induced polymers that are high-tensile, innocuous, and eco-friendly. Soil-biopolymer interactions and related soil strengthening mechanisms are discussed in the context of recent experimental and microscopic studies. In addition, the economic feasibility of biopolymer implementation in the field is analyzed in comparison to ordinary cement, from environmental perspectives. Findings from this study demonstrate that biopolymers have strong potential to replace cement as a soil treatment material within the context of environment-friendly construction and development. Moreover, continuing research is suggested to ensure performance in terms of practical implementation, reliability, and durability of in situ biopolymer applications for geotechnical engineering purposes.

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Section: How Biopolymers Strengthen Soilmentioning

confidence: 96%

Section: Xanthan Gummentioning

confidence: 99%

Section: How Biopolymers Strengthen Soilmentioning

confidence: 99%

Section: Hydro-dependency and Clogging Effect Of Biopolymersmentioning

confidence: 99%

Section: Hydro-dependency and Clogging Effect Of Biopolymersmentioning

confidence: 99%

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Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering

2016

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Applications of Biopolymers in Construction and Civil Engineering

Philip,

Reshmy

2024

Applications of Biopolymers in Science, Biotechnology, and Engineering

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Enhancing the mechanical and hydraulic properties of coarse quartz sand using a water‐soluble hydrogel based on bacterial alginate for novel application in agricultural contexts

Barrientos-Sanhueza

Mondaca

Tamayo

et al. 2021

Soil Science Soc of Amer J

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Climate change is generating severe changes in the physical behavior of soils (i.e., soil structure, mechanical resistance, and water conductivity), causing negative impacts on different agricultural systems and, therefore, threatening food security. To cope with this situation, hydrogels based on biopolymers have been proposed to modify the mechanical and hydraulic behavior of complex porous materials such as soils, yet most of them are nonsoluble, making their application at field level laborious. In this study, we investigated the effect of a water‐soluble hydrogel based on bacterial alginate on the mechanical and hydraulic behavior of coarse quartz sand. The results from unconfined uniaxial compression test showed that the strength of the sand treated with hydrogel increased by 94.5%, whereas hydraulic conductivity decreased 33%. Interestingly, we observed that bacterial alginate and hydrogel shifted the mechanics of the fluid phase toward a Darcy regime. The aggregate stability tests showed that coarse quartz sand treated with hydrogel displays larger mean weight diameter, reaching 1.5 mm compared with 0.12 mm of the control (i.e., coarse quartz sand). Finally, transmission light microscopy imaging of the hydrogel treatment revealed a new three‐dimensional matrix between the quartz sand particles, changing the microaggregates and macroaggregates and providing a modified structure of the sand material. Our findings suggest that the use of the water‐soluble hydrogel improves the mechanical and hydraulic behavior of coarse quartz sand, allowing better soil conservation against climate change‐related phenomena, and is also potentially applicable in agricultural systems facing water scarcity.

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Effects of Xanthan gum biopolymer on soil strengthening

Cited by 504 publications

References 30 publications

Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering

Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering

Applications of Biopolymers in Construction and Civil Engineering

Enhancing the mechanical and hydraulic properties of coarse quartz sand using a water‐soluble hydrogel based on bacterial alginate for novel application in agricultural contexts

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