Hydraulic conductivity of fine-grained soils subjected to freeze-thaw cycles

Feng, Shuyin and Ibraim, Erdin and Vardanega, Paul J. (2023) Hydraulic conductivity of fine-grained soils subjected to freeze-thaw cycles. Cold Regions Science and Technology, 213. p. 103902. ISSN 0165-232X

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This paper presents laboratory data from tests on four fine-grained soils: reconstituted Kaolinite, destructured Bothkennar clay, reconstituted Bothkennar clay, and reconstituted Gault clay. The soil samples were conditioned in an oedometer cell while being subjected to varying numbers of freezing and thawing cycles. The influence of freeze-thaw cycles on key soil parameters, including the hydraulic conductivity, Atterberg limits, compression and swelling index was studied. The experimental results were then compared with the analysis of a previously published database of hydraulic conductivity measurements on fine-grained soils called FG/KSAT-1358. The paper demonstrates that while multiple cycles of freezing and thawing affect some of the studied soil parameters, such as the Atterberg limits and the compression characteristics, the effects on the hydraulic conductivity transformation model parameters, linking the water content ratio to hydraulic conductivity are less apparent. The results are useful for geotechnical and pavement engineers when making assessments of freeze-thaw effects on subgrade materials in cold regions.

Item Type: Article
Identification Number: https://doi.org/10.1016/j.coldregions.2023.103902
20 May 2023Accepted
22 May 2023Published Online
Uncontrolled Keywords: Freeze-thaw, Clays, Atterberg limits, Hydraulic conductivity
Subjects: CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-01 - engineering (non-specific)
Divisions: Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Dept. of Built Environment
Depositing User: Gemma Tonks
Date Deposited: 21 Jun 2023 12:01
Last Modified: 21 Jun 2023 12:03
URI: https://www.open-access.bcu.ac.uk/id/eprint/14482

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