Triaxial test behaviour of silty sands treated with agar biopolymer

Smitha, S.; Rangaswamy, K.; Keerthi, D.

doi:10.1080/19386362.2019.1679441

Cited by 37 publications

(6 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that the high vertical stress causes the adhesions and bonds formed between the grains and the agarose gel to break. The implication is that the application of this method must consider vertical stresses, or in other words its application is more suitable in conditions of low vertical stress, this result relevant to previous research by [10].…”

Section: Effect Of Agar Content On Vertical Normal Stressmentioning

confidence: 63%

“…Recent previous studies related to the use of agarose as a polymer to improve sandy soil strength have done, include by [8] using the unconfined compression test, using 1%-4% agarose concentration, have certain the strength and deformation characteristics behavior in stiffness and ductility. Likewise other reseacher [9]the results of their study as passive stabilization using coloidal silica, while [10] [7] which specifically focused their research on the dynamic loading aspect using the triaxial test concluded that increasing the behavior of shear strength in agorase content 0.5%, 1% and 2%. However, from these research, the type and source of the test materials used were slightly limited, so to see its behavior, it still requires various sources of sand material and the type of study, includes material from the liquefaction site and using other types testing such as direct shear tests.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Shear strength behaviour of liquefiable sand of petobo on treated by agarose under direct shear test

Beddu

Setiawan

Nuraida

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Liquefaction process is associated with the loss of the shear strength of the saturated loose sands caused by strong earthquakes. Due to mitigitation of liquefaction hazard, an appropriate mitigation of liquefaction using environmentally friendly methods is critical and becoming increasingly important and unavoidable. The laboratory investigation was carried out to study the shear strength behaviour of liquefiable sand of Petobo treated by agarose on different concentration 1%,3% 5%. A series of direct shear test were conducted under three level of vertical stress 10 kPa, 20 kPa, and 30 kPa on the specimen. It was found that the optimum content of agarose which can be considered is at 1%-3%, using stress ratio (τ/σv) analysis shows that stress ratio decreases with increasing the vertical stress on the same agar content. The implication this result that the application of this method must consider variation of material source and characteristic, and the suitable level of vertical stresses.

show abstract

Section: Effect Of Agar Content On Vertical Normal Stressmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Shear strength behaviour of liquefiable sand of petobo on treated by agarose under direct shear test

Beddu

Setiawan

Nuraida

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The incorporation of xanthan gum into soils on site can be conducted through deep mixing, spraying, grouting, high-pressure injection, and etc. [9,31,49]. Given the high viscosity of xanthan gum solution that is prone to block the voids in soils for further solution penetration, deep mixing might be recommended.…”

Section: Possible Implementations Of Xanthan Gum In Geotechnical Engineering Practicesmentioning

confidence: 99%

Performance of soils enhanced with eco-friendly biopolymers in unconfined compression strength tests and fatigue loading tests

et al. 2020

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…Furthermore, adding paper can improve the malleability of the sample (Chegenizadeh and Nikraz, 2012;Naeini and Gholampoor, 2014). Yang and other researchers used modified carboxymethyl cellulose (M-CMC) and other polymers to study their effects on silt shear strength, silty slope stability, and erosion control (Yang et al, 2019;Smitha et al, 2021). Kean-Thai et al studied the impact of acrylate cement and sodium sulfate slurries on the strength of silt.…”

Section: Introductionmentioning

confidence: 99%

Use of COVID-19 personal protective equipment pollutants to improve physical properties of silty sand in Yellow River flooded area

Wang

Guo

Liu

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

Silty sand in the Yellow River flood area (YRFA) of China exhibits a low cohesive force and water-holding capacity. Its direct use for subgrade filling leads to phenomena such as subgrade bed depression, slurry, and mud. Therefore, from the perspective of waste utilization, this study investigates disposable protective clothing (DPC) and disposable nitrile gloves (DNG) produced due to COVID-19 in combination with silty sand as subgrade filling for the YRFA. Through an unconfined compressive strength and permeability test, we studied the influence of personal protective equipment (PPE) with different moisture content, concentration, and size on the strength and permeability of mixed samples. Further, we discuss its impact on the improvement of subgrade filling in YRFA. Results show that adding DPC improves both the compressive strength and ductility of the sample. However, the impermeability of the sample remains unchanged. In contrast, the addition of DNG does not increase the compressive strength and ductility of the sample at the same time, whereas it significantly improves its impermeability. The size of PPE has a considerable influence on the compressive strength of the mixed sample, whereas it does not affect the sample permeability. This method makes use of the PPE waste produced due to COVID-19, reduces environmental pollution, and provides a novel concept for improving silty sand in the YRFA.

show abstract

Triaxial test behaviour of silty sands treated with agar biopolymer

Cited by 37 publications

References 37 publications

Shear strength behaviour of liquefiable sand of petobo on treated by agarose under direct shear test

Shear strength behaviour of liquefiable sand of petobo on treated by agarose under direct shear test

Performance of soils enhanced with eco-friendly biopolymers in unconfined compression strength tests and fatigue loading tests

Use of COVID-19 personal protective equipment pollutants to improve physical properties of silty sand in Yellow River flooded area

Contact Info

Product

Resources

About