Assessment of air void content of asphalt using dielectric constant measurements by GPR and with microwave radar

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPellinen, Terhi
dc.contributor.authorEskelinen, Pekka
dc.contributor.authorHartikainen, Ari
dc.contributor.authorHuuskonen-Snicker, Eeva
dc.contributor.authorEskelinen, Jussi
dc.contributor.departmentRakennustekniikan laitosfi
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.labMineral based materialsen
dc.contributor.schoolInsinööritieteiden korkeakoulufi
dc.contributor.schoolSchool of Engineeringen
dc.date.accessioned2016-08-05T09:01:14Z
dc.date.available2016-08-05T09:01:14Z
dc.date.issued2016
dc.description.abstractIn this report, we have presented microwave radar and GPR measurements as well as laboratory tests conducted in 2014-2016. The microwave radar was tested in three different construction sites. In addition, GPR measurements were obtained for comparison. Laboratory tests included traditional density measurements and 7-17 GHz VNA scanning of drill cores obtained from the test sites. A new laboratory measurement method using cavity resonator principle was introduced with promising results. Testing of this new method will be continued. The results indicate no clear correlation between air void content and GRP permittivity measurements. Permittivity is sensitive to the changes in the relative permittivity of aggregates and volume portions of aggregates and bitumen. The relative permittivity of the aggregates determines the base level for permittivity measured with radar or VNA. In the course of this research, it has become apparent that a new calibration procedure for the GPR measurements is needed. The aim in further research is to extract core samples from pavement areas with different densities to obtain a local calibration model.en
dc.format.extent66
dc.format.mimetypeapplication/pdfen
dc.identifier.isbn978-952-60-6879-4 (electronic)
dc.identifier.issn1799-490X (electronic)
dc.identifier.issn1799-4896 (ISSN-L)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/21243
dc.identifier.urnURN:ISBN:978-952-60-6879-4
dc.language.isoenen
dc.publisherAalto Universityen
dc.publisherAalto-yliopistofi
dc.relation.ispartofseriesAalto University publication series SCIENCE + TECHNOLOGYen
dc.relation.ispartofseries8/2016
dc.subject.keywordasphalten
dc.subject.keywordair voidsen
dc.subject.keywordGPRen
dc.subject.keywordpermittivityen
dc.subject.keywordcalibrationen
dc.subject.keyworddielectric constanten
dc.subject.otherCivil engineeringen
dc.subject.otherElectrical engineeringen
dc.subject.otherTransport engineeringen
dc.titleAssessment of air void content of asphalt using dielectric constant measurements by GPR and with microwave radaren
dc.typeD4 Julkaistu kehittämis- tai tutkimusraportti tai -selvitysfi
dc.type.dcmitypetexten
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
isbn9789526068794.pdf
Size:
8.19 MB
Format:
Adobe Portable Document Format