Influence of the test specimen diameter on the measurement of electrical resistivity in sands by using laboratory devices

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dc.contributor.authorPregnolato, M. C. [UNESP]
dc.contributor.authorGiacheti, H. L. [UNESP]
dc.contributor.authorPeixoto, A. S.P. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:06:57Z
dc.date.available2022-04-28T19:06:57Z
dc.date.issued2016-05-01
dc.description.abstractElectrical resistivity tests have long been used in geo-environmental site characterization because they provide qualitative data to identify the presence of contaminants in soil. The measurement of soil electrical resistivity is affected by many intervening factors, which are usually studied separately in the laboratory and are important to ensure the correct interpretation of in situ test data. This paper presents the evaluation of the influence of the diameter of test specimens on electrical resistivity measurements of a particulate medium in the laboratory, using two different techniques, copper plates and a resistivity probe. The data were discussed considering Archie's Law, and it indicates that the geometry of test specimen has a greater effect than the measurement technique. The larger test specimen allows more current pathways for electron propagation because electric current travels along the path of least resistance to the passage of electrons. The findings from this research can be used to guide a laboratory test investigation and its data interpretation.en
dc.description.affiliationDepartamento de Engenharia Civil e Ambiental Universidade Estadual Paulista 'Júlio de Mesquita Filho'
dc.description.affiliationUnespDepartamento de Engenharia Civil e Ambiental Universidade Estadual Paulista 'Júlio de Mesquita Filho'
dc.format.extent157-165
dc.identifier.citationSoils and Rocks, v. 39, n. 2, p. 157-165, 2016.
dc.identifier.issn1980-9743
dc.identifier.scopus2-s2.0-85029516722
dc.identifier.urihttp://hdl.handle.net/11449/220920
dc.language.isoeng
dc.relation.ispartofSoils and Rocks
dc.sourceScopus
dc.subjectArchie Law
dc.subjectCopper plates
dc.subjectElectrical resistivity
dc.subjectResistivity probe
dc.subjectSite characterization
dc.titleInfluence of the test specimen diameter on the measurement of electrical resistivity in sands by using laboratory devicesen
dc.typeArtigo

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