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dc.contributor.authorCordero Arias, Josbel Andreina
dc.contributor.authorUseche, G
dc.contributor.authorPrat, P. C.
dc.contributor.authorLedesma Villalba, Alberto
dc.contributor.authorSantamarina, J. C.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2018-02-06T15:04:18Z
dc.date.available2019-01-01T01:30:37Z
dc.date.issued2017-12
dc.identifier.citationCordero, J.A., Useche, G., Prat, P.C., Ledesma, A., Santamarina, J.C. Soil desiccation cracks as a suction-contraction process. "Geotechnique Letters", Desembre 2017, vol. 7, núm. 4, p. 279-285.
dc.identifier.issn2049-825X
dc.identifier.urihttp://hdl.handle.net/2117/113816
dc.description.abstractRecent macro- and particle-scale advances in unsaturated soil behaviour have led to an enhanced understanding of the effects of moisture changes on soil response. This research examines desiccation cracks as a suction–contraction-coupled process using sand–clay mixtures. Suction–moisture measurements highlight the role of fines on suction potential even at low fines content; on the other hand, oedometer tests exhibit a marked transition from sand-controlled to clay-controlled compressibility. Time-lapse photography of desiccation tests in flat trays show the onset of crack initiation and the subsequent evolution in horizontal strains; concurrent gravimetric water content measurements relate crack nucleation to suction at air entry. Suction and compressibility increase with the soil-specific surface and have a compounded effect on desiccation-driven lateral contraction. Both layer thickness and its lateral extent affect the development of desiccation cracks. The recently proposed revised soil classification system properly anticipates the transitions in compressibility and capillary phenomena observed in this study (between 15 and 35% fines content).
dc.format.extent7 p.
dc.language.isoeng
dc.publisherInstitution of Civil Engineers (ICE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subject.lcshClay soils
dc.subject.otherclays
dc.subject.othercompressibility
dc.subject.othersands
dc.subject.othersuction
dc.titleSoil desiccation cracks as a suction-contraction process
dc.typeArticle
dc.subject.lemacSòls argilosos
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.identifier.doi10.1680/jgele.17.00070
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.icevirtuallibrary.com/doi/full/10.1680/jgele.17.00070
dc.rights.accessOpen Access
drac.iddocument21869203
dc.description.versionPostprint (published version)
upcommons.citation.authorCordero, J.A.; Useche, G.; Prat, P.C.; Ledesma, A.; Santamarina, J.C.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameGeotechnique Letters
upcommons.citation.volume7
upcommons.citation.number4
upcommons.citation.startingPage279
upcommons.citation.endingPage285


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