Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils

The current classification of clayey soils does not entail information of pore fluid chemistry and particle size less than 75 µm. However, the pore fluid chemistry and particle size (at given mineralogy) are critical in the plasticity of clayey soils because of their impact on negative charge densit...

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Autores principales: Jongmuk Won, Junghee Park, Junki Kim, Junbong Jang
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:e7bd98eeff484f4291c298d3e5e7bc682021-11-11T19:27:44ZImpact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils10.3390/su1321117412071-1050https://doaj.org/article/e7bd98eeff484f4291c298d3e5e7bc682021-10-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/11741https://doaj.org/toc/2071-1050The current classification of clayey soils does not entail information of pore fluid chemistry and particle size less than 75 µm. However, the pore fluid chemistry and particle size (at given mineralogy) are critical in the plasticity of clayey soils because of their impact on negative charge density. Therefore, this study extensively discusses the description of clay with respect to mineralogy, particle sizes, and pore fluid chemistry based on liquid and plastic limits of kaolinite, illite, and bentonite, and estimates undrained shear strength from the observed liquid limits. The liquid limits and undrained shear strength estimated from the observed liquid limits as a function of mineralogy (clay type), particle size, and ionic concentration reveal the need of incorporating pore fluid chemistry and particle size into the fines classification system. Furthermore, multiple linear regression models developed in this study demonstrate the importance of particle size and ionic concentration in predicting the liquid limit of clayey soils. This study also discusses the need for a comprehensive understanding of fines classification for proper interpretation of natural phenomena and engineering applications for fine-grained sediments.Jongmuk WonJunghee ParkJunki KimJunbong JangMDPI AGarticleclaymineralogyparticle sizesoil classificationliquid limitpore fluid chemistryEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 11741, p 11741 (2021)
institution DOAJ
collection DOAJ
language EN
topic clay
mineralogy
particle size
soil classification
liquid limit
pore fluid chemistry
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
spellingShingle clay
mineralogy
particle size
soil classification
liquid limit
pore fluid chemistry
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
Jongmuk Won
Junghee Park
Junki Kim
Junbong Jang
Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
description The current classification of clayey soils does not entail information of pore fluid chemistry and particle size less than 75 µm. However, the pore fluid chemistry and particle size (at given mineralogy) are critical in the plasticity of clayey soils because of their impact on negative charge density. Therefore, this study extensively discusses the description of clay with respect to mineralogy, particle sizes, and pore fluid chemistry based on liquid and plastic limits of kaolinite, illite, and bentonite, and estimates undrained shear strength from the observed liquid limits. The liquid limits and undrained shear strength estimated from the observed liquid limits as a function of mineralogy (clay type), particle size, and ionic concentration reveal the need of incorporating pore fluid chemistry and particle size into the fines classification system. Furthermore, multiple linear regression models developed in this study demonstrate the importance of particle size and ionic concentration in predicting the liquid limit of clayey soils. This study also discusses the need for a comprehensive understanding of fines classification for proper interpretation of natural phenomena and engineering applications for fine-grained sediments.
format article
author Jongmuk Won
Junghee Park
Junki Kim
Junbong Jang
author_facet Jongmuk Won
Junghee Park
Junki Kim
Junbong Jang
author_sort Jongmuk Won
title Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
title_short Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
title_full Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
title_fullStr Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
title_full_unstemmed Impact of Particle Sizes, Mineralogy and Pore Fluid Chemistry on the Plasticity of Clayey Soils
title_sort impact of particle sizes, mineralogy and pore fluid chemistry on the plasticity of clayey soils
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/e7bd98eeff484f4291c298d3e5e7bc68
work_keys_str_mv AT jongmukwon impactofparticlesizesmineralogyandporefluidchemistryontheplasticityofclayeysoils
AT jungheepark impactofparticlesizesmineralogyandporefluidchemistryontheplasticityofclayeysoils
AT junkikim impactofparticlesizesmineralogyandporefluidchemistryontheplasticityofclayeysoils
AT junbongjang impactofparticlesizesmineralogyandporefluidchemistryontheplasticityofclayeysoils
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