Application of Electrokinetic Stabilisation (EKS) Method for Soft Soil: A Review

Azhar, A T S; Azim, M. N.; Syakeera, NN; Jefferson, IF; Rogers, C. D. F.

doi:10.1088/1757-899x/226/1/012075

Cited by 10 publications

(7 citation statements)

References 23 publications

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“…It is mostly operative in clayey soils either at saturated and unsaturated conditions. The electrolysis reactions only occurs with help of EK which demonstrates the pH change in soil [25,60]. This happens due to production rate of hydrogen ions difference at cathode and anode which leads to increase in pH near cathode and decrease near anode [61].…”

Section: E Electro-kineticmentioning

confidence: 99%

Properties of Biomineralization Process in Various Types of Soil and Their Limitations

Mousa*¹,

Nahazanan²,

Huat³

et al. 2019

IJEAT

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Weak and problematic soils affect stability and safety of structures founded on them. The problems occur due to limitation or absence of shear strength or over shear stress applied on the soil during loading which then lead to large settlement and consequently failure to the founded structures. Replacing the soil with better materials would be very costly as these types of soil are normally extended to a great depth under the ground surface. The proposed solution for such kind of soils is curing weak soils instead of replacing them. One of the proposed treatment methods is bio-grouting in which the conditions and the scales of the application differs according to the soil types and limitations. Reviews on previous researches have shown that treatment results by bio-grouting method are controlled by several factors, such as size of pores, value of pH, duration of treatment, presence of water and electro-kinetic effect, which give impact to treatment results quality and quantity. The outcome can go as far as killing the bacteria which then reduce the microbial growth if it was not controlled. Understanding of bio-grouting process and its application will help in improving the engineering properties of the weak soils and its applications.

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Section: E Electro-kineticmentioning

confidence: 99%

Properties of Biomineralization Process in Various Types of Soil and Their Limitations

Mousa*¹,

Nahazanan²,

Huat³

et al. 2019

IJEAT

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“…Unlike, EK remediation, electro kinetic stabilization (EKS) of soil specifically deals with the improvement in physical and geotechnical properties of the soil, that enhances or improves the suitability of the soil as a geotechnical material. The improvement in the physical properties are attributed to the various electrochemical effects like electroosmosis, electromigration, electrolysis that take place during application of an electrical gradient [13]. Thus, it may be noted that the application of EK method for soil remediation also invariably results in changes to the physical properties of the soil resulting in soil improvement.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it may be noted that the application of EK method for soil remediation also invariably results in changes to the physical properties of the soil resulting in soil improvement. EKS is a combination of electroosmosis and chemical grouting [13], wherein stabilizing agents are drawn into the soil by electroosmosis and electromigration and result in increased cementation. The major benefit of adopting EKS when compared to traditional mix in place treatment is that it enables remote treatment of the target soil layer without excavation [13].…”

Section: Introductionmentioning

confidence: 99%

“…EKS is a combination of electroosmosis and chemical grouting [13], wherein stabilizing agents are drawn into the soil by electroosmosis and electromigration and result in increased cementation. The major benefit of adopting EKS when compared to traditional mix in place treatment is that it enables remote treatment of the target soil layer without excavation [13]. There have been previous investigations where investigators have used stabilizing/enhancing agents for soil stabilization.…”

Section: Introductionmentioning

confidence: 99%

“…The use of enhancing agents for improvement of soil during electroosmosis began in the 1990s [14]. Azhar et al [13] state that these agents can be introduced from either anode or cathode of the EK cell, depending upon the ion to be fed. Ozkan et al [15] used aluminium and phosphate ions for EKS of kaolinite.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plasticity and Swell-Shrink Behaviour of Electrokinetically Stabilized Virgin Expansive Soil using Calcium Hydroxide and Calcium Chloride Solutions as Cationic Fluids

James

Kumar

et al. 2019

Civil and Environmental Engineering Reports

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This investigation focussed on the plasticity and swell-shrink behaviour of an expansive soil that was stabilized using electro kinetic stabilization (EKS) techniques with cationic fluids for enhancement of stabilization. 0.25 M solutions of calcium hydroxide and calcium chloride were used as cationic fluids. An electro kinetic (EK) cell of dimensions 500 mm x 150 mm x 160 mm with inert graphite electrodes of size 140 mm x 160 mm x 5 mm was adopted for the stabilization process, carried out at an applied voltage of 40 V over a period of 6 hours. After the duration of the test, stabilized soil sample was subjected to Atterberg limits and free swell tests to determine its plasticity and swell-shrink characteristics. The results of the investigation found that both fluids were capable of reducing the plasticity and swell-shrink behaviour of the soil with different levels of effectiveness.

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Effect of Various Parameters on Electrokinetic Dewatering of Saturated Clay

Rotte

Sutar

Patel

et al. 2021

Lecture Notes in Civil Engineering

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Application of Electrokinetic Stabilisation (EKS) Method for Soft Soil: A Review

Cited by 10 publications

References 23 publications

Properties of Biomineralization Process in Various Types of Soil and Their Limitations

Properties of Biomineralization Process in Various Types of Soil and Their Limitations

Plasticity and Swell-Shrink Behaviour of Electrokinetically Stabilized Virgin Expansive Soil using Calcium Hydroxide and Calcium Chloride Solutions as Cationic Fluids

Effect of Various Parameters on Electrokinetic Dewatering of Saturated Clay

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