Stabilization of Dispersive Soil Using Biopolymer

Swain, Kajal; Mahamaya, Mahasakti; Alam, Shamshad; Das, Sarat Kumar

doi:10.1007/978-3-319-61612-4_11

Cited by 20 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These findings are consistent with previous research studies of biopolymer-treated soil under triaxial loading conditions showing that biopolymers can increase the peak deviatoric stress 40,[42][43][44][45][46] . On the other hand, Karimi 47 showed that the maximum deviatoric stress of 1% XG-treated silt can decrease in the period between five and 30 days.…”

Section: Resultssupporting

confidence: 93%

“…This is because the biopolymers within one hour were still in a gelatinous form with low strength. Similar behavior was reported by Swain et al 40 where a dispersive soil was treated with various concentrations of XG and GG. Figure 4 depicts the impact of different biopolymer types, biopolymer concentrations, and curing time periods (one hour, five days, and 30 days) on the compressive strength.…”

Section: Resultssupporting

confidence: 87%

“…However, the change in the friction angle of pure sand was found negligible. Khatami & O'Kelly 40 showed that agar and starch increase the cohesion of sand but reduce the friction angle. Ayeldeen et al 19 demonstrated with the direct shear test that XG and GG increase the cohesion of a soil that had a significant presence of fine particles, but the biopolymers slightly decreased the friction angle that soil.…”

Section: Direct Shear Testmentioning

confidence: 99%

See 2 more Smart Citations

Biopolymers as a sustainable solution for the enhancement of soil mechanical properties

Soldo

Miletić

Auad

2020

Sci Rep

168

View full text Add to dashboard Cite

improving soil engineering properties is an inevitable process before construction on soft soil. increasing soil strength with chemical stabilizing agents, such as cement, raises environmental concerns. therefore, sustainable solutions are in high demand. one of the promising solutions is the usage of biopolymers. Five biopolymer types were investigated in this study: Xanthan Gum, Beta 1,3/1,6 Glucan, Guar Gum, Chitosan, and Alginate. Their effect on the soil strength improvement was experimentally investigated by performing unconfined compression, splitting tensile, triaxial, and direct shear tests. All tests were performed with different biopolymer concentrations and curing periods. Additionally, in order to have an insight on the susceptibility to natural elements, plain soil, and biopolymertreated specimens were exposed to real atmospheric conditions. The extensive experimental results showed that the soil strength tends to increase with the increase of biopolymer concentration and with the curing time. However, it was shown that the soil strength does not considerably change after a certain biopolymer concentration level and curing time. furthermore, it has been observed that the biopolymer-treated specimens showed better resistance to the influence of the environmental conditions. In general, Xanthan Gum, Guar Gum, and Beta 1,3/1,6 Glucan showed the most dominant effect and potential for the future of sustainable engineering.

show abstract

Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 87%

Section: Direct Shear Testmentioning

confidence: 99%

See 1 more Smart Citation

Biopolymers as a sustainable solution for the enhancement of soil mechanical properties

Soldo

Miletić

Auad

2020

Sci Rep

168

View full text Add to dashboard Cite

show abstract

“…The synergistic effect is due to the flocculation of fine particles as well as the interconnection between fine and coarse particles (Chang and Cho, 2018). Studies have also demonstrated the importance of complete drying in order to achieve maximum strength for biopolymer treated soils (Swain et al, 2018) as the strength of biopolymers has been found to be dependent on water content (Chang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Sustainable utilization of biopolymers and biocement in aggregation of granular materials

Ramachandran¹,

Dhami²,

Mukherjee³

2019

Sustainable Construction Materials and Technologies (SCMT)

View full text Add to dashboard Cite

Soil stabilisation through materials such as lime or cement have considerable environmental penalty due to high embodied energy of the cementitious material. Biogeotechnology allows cement formation with dramatically reduced carbon footprint and promises a sustainable soil improvement method. In the current study, investigations were performed to evaluate the effect of biopolymer Xanthan gum and Microbially Induced Calcite Precipitation (MICP) on cementation of sands as well as sand-clay mixtures individually as well as in combination. The unconfined compressive strength tests and micrographic analysis through scanning electron microscope and energy dispersive X-ray spectroscopy results revealed that synergistic effect of biopolymer and MICP resulted in superior performance. Water absorption test indicated that the Xanthan gum was susceptible to water attack and incorporation of MICP helped in addressing the concern. Therefore, the present study was successful in overcoming the individual limitations of biopolymer and MICP as a sustainable soil stabilisation technology.

show abstract

“…Bu çalışmada 5 mol/L sodyum silikatın eklenmesi, en yüksek serbest basınç mukavemeti sonuçlarını vermiştir. Swain (2015), çalışmasında hem geopolimer bileşenlerinin hem de biyopolimer bileşenlerinin etkilerini incelemiştir. Sodyum bazlı alkali aktivatörler ve katkı maddesi olarak uçucu kül geopolimer bileşenleri olarak, ayrıca zantan sakızı ve guar sakızı da biyopolimer bileşenleri olarak kullanılmıştır.…”

unclassified

Zemi̇nlerde Tek Fazli Geopoli̇meri̇zasyon Uygulamasi Ve Geopoli̇meri̇zasyonun Serbest Basinç Mukavemeti̇ Üzeri̇ndeki̇ Etki̇si̇

Eskişar

Aksu

2020

Konya Journal of Engineering Sciences

View full text Add to dashboard Cite

Bu çalışmada likit aktivatörler ile yapılan tek fazlı geopolimerizasyon sonucu kil, killi kum, kum zeminlerde gözlenen mukavemet değişimleri incelenmiştir. Örnek grupları deney planına uygun olarak 7 günden 90 güne değişen sürelerde küre tabi tutulmuştur. Geopolimerizasyon metodunun, aktivatör içeriğinin ve oranlarının, kür sürelerinin ve donma-çözünme çevrimlerinin serbest basınç mukavemeti üzerindeki etkisi belirlenmiştir. Farklı likit aktivatör içeriklerinin başarısının, zeminin türü ve geopolimerizasyon metodundan önemli ölçüde etkilendiği bulunmuştur. Kum ve killi kum örneklerinde optimum su içeriği kadar likit aktivatör kullanılması iyileştirme sağlarken, kil zemin örneklerinde optimum su içeriğinin yaklaşık iki katı kadar likit aktivatör kullanılması mukavemeti artırmaktadır. Mukavemet ayrıca kür süresinin uzaması ile artmaktadır. İşlem görmeyen kil zeminin mukavemeti 315 kPa iken 90 gün sonunda aynı zemin örnekleri 1114 kPa mukavemete ulaşmıştır. Donma-çözünme çevrimleri uygulanan zeminlerde ise belirgin bir mukavemet azalımı görülmüştür. En fazla mukavemet kaybı yine kil zeminlerde gözlemlenmiş ve 3 çevrim sonunda mukavemet %55 kadar azalmıştır.

show abstract

Stabilization of Dispersive Soil Using Biopolymer

Cited by 20 publications

References 11 publications

Biopolymers as a sustainable solution for the enhancement of soil mechanical properties

Biopolymers as a sustainable solution for the enhancement of soil mechanical properties

Sustainable utilization of biopolymers and biocement in aggregation of granular materials

Zemi̇nlerde Tek Fazli Geopoli̇meri̇zasyon Uygulamasi Ve Geopoli̇meri̇zasyonun Serbest Basinç Mukavemeti̇ Üzeri̇ndeki̇ Etki̇si̇

Contact Info

Product

Resources

About