Physical and rheological properties of nano-TiO2 and nanocomposite modified bitumens

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dc.contributor.authorGunay, Taylan
dc.contributor.authorAhmedzade, Perviz
dc.date.accessioned2020-12-01T12:01:16Z
dc.date.available2020-12-01T12:01:16Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractUsage of nano-TiO2 and nano-TiO2/styrene-butadiene-styrene (SBS) nano-composite as a modifier in bitumen was studied. To this end, conventional test methods including softening point and penetration tests were applied to binders to examine the physical changes after nano-TiO2 modification. the rheological characterizations of base and nano modified binder were performed by means of constructing master curves of complex viscosity (eta*), storage (G') and loss modulus (G '') by time-temperature superposition principle. Short-term aging behavior of binders were investigated by means of roll thin film oven test (RTFOT). Dynamic shear rheometer (DSR) was employed to determinate high temperature performance grade (PG) of bitumens by using Superpave specification. Multiple stress creep recovery (MSCR) test, up-to-date method proposed for high temperature performance grades, was applied to short-term aged bitumen. the performance grades of base and nano modified bitumens determined by Superpave specification and MSCR method were also compared. the results suggest that addition of nano-TiO2 has a positive influence on stiffness of bitumen whereas the nanocomposite modifier formed by means of nano-TiO2 and SBS polymer could satisfactorily be employed as modifier in bitumen as better rheological parameters were obtained compared to pure SBS modification. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.conbuildmat.2020.118208
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.issn0950-0618en_US
dc.identifier.issn1879-0526en_US
dc.identifier.scopus2-s2.0-85078441124en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2020.118208
dc.identifier.urihttps://hdl.handle.net/11454/62369
dc.identifier.volume243en_US
dc.identifier.wosWOS:000527409700034en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofConstruction and Building Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBitumenen_US
dc.subjectRheologyen_US
dc.subjectModificationen_US
dc.subjectNano-TiO2en_US
dc.subjectNanomaterialsen_US
dc.titlePhysical and rheological properties of nano-TiO2 and nanocomposite modified bitumensen_US
dc.typeArticleen_US

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