Vertical pore structure profile of a compacted clayey soil

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dc.contributor.authorFener, Mustafa
dc.contributor.authorYesiller, Nazli
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractAn investigation was conducted to determine the vertical profile of the pore structure of a compacted clayey soil. Specimens were prepared at the dry and wet sides of optimum water content using standard compaction effort. Thin sections were prepared for microscopic analysis along vertical profiles throughout the depth of the specimens. The relative quantities of pores in the compacted specimens were determined using data obtained from image analysis of the thin sections. The parameter Pore Area Ratio (PAR) was introduced as the quotient of the area of pores to the total area for a given image to quantify pore structure. The results of the analysis indicated that PAR varied significantly from the top to the bottom of the specimens. This trend was strongest in the dry of optimum and near optimum water content specimens and less pronounced in the wet of optimum specimens, in particular under very wet conditions. The common standardized impact compaction testing procedure (i.e., standard compaction test) resulted in significant variation in the vertical pore profile of the specimens due to the cumulatively higher energy applied to the specimens near the bottom and lower energy applied to the specimens near the top. Larger and more connected pores were present in the top layers of the specimens, whereas the pores were smaller and less connected in the bottom layers of the specimens. In general, the PAR decreased with the depth of the specimens with the highest PAR observed at the top and the lowest PAR observed at the bottom of the specimens. The differences in PAR were commonly twofold to threefold between the top and bottom layers of the soils. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.sponsorshipCukurova University Research Foundation [FBE2002D47, MMF2003BAP17, MMF200043]; YOK (The Council of Higher Education of Turkey)
dc.description.sponsorshipThe first step of this study was financially supported in part by the Cukurova University Research Foundation (Project Nos: FBE2002D47, MMF2003BAP17, and MMF200043). The microscopic study for the investigation was conducted at Nigde University and the analyses were completed at California Polytechnic State University. Dr. Fener was a Visiting Scholar at California Polytechnic State University in 2011-2012 with the support of YOK (The Council of Higher Education of Turkey). The first author sincerely thanks his Ph.D. supervisor Prof. Dr. Hasan Cetin, whose help and teachings in investigating the structural and textural characteristics of both artificial and natural soils, provided inspiration for his scientific studies.
dc.identifier.doi10.1016/j.enggeo.2013.08.001
dc.identifier.endpage215
dc.identifier.issn0013-7952
dc.identifier.issn1872-6917
dc.identifier.scopus2-s2.0-84887125911
dc.identifier.scopusqualityQ1
dc.identifier.startpage204
dc.identifier.urihttps://dx.doi.org/10.1016/j.enggeo.2013.08.001
dc.identifier.urihttps://hdl.handle.net/11480/4327
dc.identifier.volume166
dc.identifier.wosWOS:000327804700019
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofENGINEERING GEOLOGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCompacted clay
dc.subjectSoil structure
dc.subjectSoil fabric
dc.subjectVertical profile
dc.subjectVoid distribution
dc.subjectImage analysis
dc.titleVertical pore structure profile of a compacted clayey soil
dc.typeArticle

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