Free Swelling Behaviour of Bentonite-Sand Mixtures in Presence of Pore Fluids of Different Dielectric Constants

Open Access

Year : 2021 | Volume : | Issue : 1 | Page : 26-38
By

    Shafi Kamal Rahman

  1. Binu Sharma

  2. Asuri Sridharan

  1. Research Scholar, Department of Civil Engineering, Assam Engineering College, Assam, India

Abstract

The free swelling behaviour of bentonite sand mixtures have been studied using different percentage of ethanol-water and methanol-water solutions. Free swell index tests were conducted at different proportion of ethanol and methanol with distilled water (0%, 20%, 40%, 60%, 80% and 100%). Free swell index (FSI), modified free swell index (MFSI) and free swell ratio (FSR) were determined from the results obtained from the tests. FSI, MFSI and FSR decrease with the increase of ethanol as well as methanol percentage. Good linear correlation has been observed between the dielectric constants of the pore fluids and FSI and MFSI of the bentonite sand mixtures. The study focuses on the significant influence of dielectric constants of different percentage of ethanol and methanol water solution on the free swell of bentonite-sand mixtures.

Keywords: Free swell index; modified free swell index; dielectric constant; bentonite; ethanol, methanol

[This article belongs to International Journal of Geological and Geotechnical Engineering(ijgge)]

How to cite this article: Shafi Kamal Rahman, Binu Sharma, Asuri Sridharan Free Swelling Behaviour of Bentonite-Sand Mixtures in Presence of Pore Fluids of Different Dielectric Constants ijgge 2021; 7:26-38
How to cite this URL: Shafi Kamal Rahman, Binu Sharma, Asuri Sridharan Free Swelling Behaviour of Bentonite-Sand Mixtures in Presence of Pore Fluids of Different Dielectric Constants ijgge 2021 {cited 2021 May 31};7:26-38. Available from: https://journals.stmjournals.com/ijgge/article=2021/view=90366

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Regular Issue Open Access Article
Volume 7
Issue 1
Received March 3, 2021
Accepted March 20, 2021
Published May 31, 2021