Monitoring of concrete segregation using AC impedance spectroscopy

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorOjala, Teemuen_US
dc.contributor.authorAhmed, Hassanen_US
dc.contributor.authorKuusela, Petrien_US
dc.contributor.authorSeppänen, Akuen_US
dc.contributor.authorPunkki, Jounien_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.groupauthorMineral Based Materials and Mechanicsen
dc.contributor.organizationDepartment of Civil Engineeringen_US
dc.contributor.organizationUniversity of Eastern Finlanden_US
dc.date.accessioned2023-05-08T04:31:12Z
dc.date.available2023-05-08T04:31:12Z
dc.date.issued2023-06-27en_US
dc.descriptionFunding Information: This study was financially supported by Co-operation agreement with the Finnish concrete industry (project number 700721) and the Academy of Finland (Finnish Centre of Excellence in Inverse Modelling and Imaging, project number 336795). Publisher Copyright: © 2023 The Authors
dc.description.abstractSegregation is one of the major phenomena decreasing the durability of concrete and increasing its risk of failure. This paper investigates the feasibility of AC Impedance Spectroscopy (ACIS) to serve as a monitoring technique for the concrete segregation during compaction. The impedances of fresh concrete were determined between compaction intervals. Changes in the calculated bulk resistivities were compared to hardened densities of the drilled cores, as well as to aggregate segregation obtained via digital image analysis of the hardened concrete sections. During the compaction process, a significant difference in the bulk resistivity was observed between the top and bottom parts of segregated specimens in comparison to unsegregated specimens. By inspecting the relationship between the measurement methods, it was found that ACIS provides a reliable approach (r=-0.948) for estimating the segregation level in cases where the resistivity is mostly affected by the movement of aggregates.en
dc.description.versionPeer revieweden
dc.format.extent11
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationOjala, T, Ahmed, H, Kuusela, P, Seppänen, A & Punkki, J 2023, ' Monitoring of concrete segregation using AC impedance spectroscopy ', Construction and Building Materials, vol. 384, 131453 . https://doi.org/10.1016/j.conbuildmat.2023.131453en
dc.identifier.doi10.1016/j.conbuildmat.2023.131453en_US
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.otherPURE UUID: cc688b61-6685-41e4-9927-904c3f8c4852en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/cc688b61-6685-41e4-9927-904c3f8c4852en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85152902593&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/107504240/1_s2.0_S0950061823011662_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/120651
dc.identifier.urnURN:NBN:fi:aalto-202305082993
dc.language.isoenen
dc.publisherElsevier Science Ltd.
dc.relation.ispartofseriesConstruction and Building Materialsen
dc.relation.ispartofseriesVolume 384en
dc.rightsopenAccessen
dc.subject.keywordConcrete compactionen_US
dc.subject.keywordImpedance spectroscopyen_US
dc.subject.keywordSegregationen_US
dc.subject.keywordVibration timeen_US
dc.titleMonitoring of concrete segregation using AC impedance spectroscopyen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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