Characterization of physical aging by time-resolved rheometry: fundamentals and application to bituminous binders

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLaukkanen, Olli Villeen_US
dc.contributor.authorWinter, H. Henningen_US
dc.contributor.authorSeppälä, Jukkaen_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen
dc.contributor.groupauthorPolymer technologyen
dc.contributor.organizationUniversity of Massachusettsen_US
dc.date.accessioned2019-04-02T06:58:38Z
dc.date.available2019-04-02T06:58:38Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2019-09-29en_US
dc.date.issued2018-11-01en_US
dc.description.abstractPhysical aging is a ubiquitous phenomenon in glassy materials and it is reflected, for example, in the time evolution of rheological properties under isothermal conditions. In this paper, time-resolved rheometry (TRR) is used to characterize this time-dependent rheological behavior. The fundamentals of TRR are briefly reviewed, and its advantages over the traditional Struik’s physical aging test protocol are discussed. In the experimental section, the TRR technique is applied to study physical aging in bituminous binders. Small-diameter parallel plate (SDPP) rheometry is employed to perform cyclic frequency sweep (CFS) experiments over extended periods of time (from one to 8.6 days). The results verify that the mutation of rheological properties is relatively slow during physical aging (mutation number N′mu << 1), thus allowing rheological measurements on a quasi-stable sample. The effects of temperature, crystallinity, and styrene-butadiene-styrene (SBS) polymer modification on the physical aging of bitumen are evaluated. The time-aging time superposition is found to be valid both for unmodified and for polymer-modified bitumen. Vertical shifts are necessary, in addition to horizontal time-aging time shifts, to generate smooth master curves for highly SBS-modified bitumen.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.extent745-756
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLaukkanen, O V, Winter, H H & Seppälä, J 2018, ' Characterization of physical aging by time-resolved rheometry : fundamentals and application to bituminous binders ', Rheologica Acta, vol. 57, no. 11, pp. 745-756 . https://doi.org/10.1007/s00397-018-1114-8en
dc.identifier.doi10.1007/s00397-018-1114-8en_US
dc.identifier.issn0035-4511
dc.identifier.otherPURE UUID: fd275865-4dc6-414d-a9ba-00d06a5a419fen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/fd275865-4dc6-414d-a9ba-00d06a5a419fen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85050407888&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/32645713/CHEM_Laukkanen_et_al_Physical_aging_2018_Rheologica_Acta.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/37409
dc.identifier.urnURN:NBN:fi:aalto-201904022540
dc.language.isoenen
dc.publisherSpringer Verlag
dc.relation.ispartofseriesRheologica Actaen
dc.relation.ispartofseriesVolume 57, issue 11en
dc.rightsopenAccessen
dc.subject.keywordBitumenen_US
dc.subject.keywordPhysical agingen_US
dc.subject.keywordSample mutationen_US
dc.subject.keywordTime-aging time superpositionen_US
dc.subject.keywordTime-resolved rheometryen_US
dc.titleCharacterization of physical aging by time-resolved rheometry: fundamentals and application to bituminous bindersen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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[article-cris] Kemian tekniikan korkeakoulu / CHEM