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Efeito do tempo de cura na resistência e deformabilidade de um solo argiloso ligado com cimento

2023-07-26Artigo científico Acesso aberto
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dc.contributor.authorSantana, Teresa
dc.contributor.authorDias, João
dc.contributor.authorLamas, Pedro
dc.contributor.institutionUNIC - Centro de Investigação em Estruturas e Construção
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.institutionGeoBioTec - Geobiociências, Geoengenharias e Geotecnologias
dc.contributor.pblSociedade Portuguesa de Geotecnia | Imprensa da Universidade de Coimbra
dc.date.accessioned2023-09-19T22:14:53Z
dc.date.available2023-09-19T22:14:53Z
dc.date.issued2023-07-26
dc.descriptionPublisher Copyright: © 2023 Sociedade Portuguesa de Geotecnia.
dc.description.abstractThis work presents the laboratory results of a cement bound clayey soil, using a Portland cement, CEM IV/A 32,5 R, added in the proportions of 8 % and 12 % relative to the dry mass of soil. Unconfined compression tests were conducted on specimens compacted in a Proctor mould, under the optimum water content (owc), for different curing times up to 90 days. The results show that the use of cement allows an increase in the unconfined compression strength of 30 % up to 7 days of curing time and only an increase in 6 % from 7 to 90 days of curing time, for the two cement contents studied. Correlations between unconfined compression strength, Rc and the percentage of cement and the curing time are proposed, as well as for the secant Young’s modulus, E30. The models enable the long-term prediction of the behaviour of those mixtures, knowing the compaction and strength properties of the soil used.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent23
dc.format.extent1892632
dc.identifier.doi10.14195/2184-8394_158_2
dc.identifier.issn0379-9522
dc.identifier.otherPURE: 68885494
dc.identifier.otherPURE UUID: 3d67b9b5-589d-49f2-b58a-044633a6231c
dc.identifier.otherScopus: 85166265191
dc.identifier.otherORCID: /0000-0002-1691-8153/work/183572693
dc.identifier.urihttp://hdl.handle.net/10362/158005
dc.identifier.urlhttps://www.scopus.com/pages/publications/85166265191
dc.language.isopor
dc.peerreviewedyes
dc.subjectcement bound soil
dc.subjectcuring time
dc.subjectunconfined compression strength
dc.subjectEarth and Planetary Sciences (miscellaneous)
dc.subjectGeology
dc.subjectGeotechnical Engineering and Engineering Geology
dc.subjectCivil and Structural Engineering
dc.titleEfeito do tempo de cura na resistência e deformabilidade de um solo argiloso ligado com cimentopt
dc.title.alternativeEffect of the curing time on the strength and deformability of a cement bound clayey soilen
dc.typejournal article
degois.publication.firstPage25
degois.publication.issue158
degois.publication.lastPage47
degois.publication.titleGeotecnia
degois.publication.volume2023
dspace.entity.typePublication
rcaap.rightsopenAccess

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