The oxidation of bitumen witnessed in-situ by infrared spectroscopy

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMakowska, Michalina
dc.contributor.authorHartikainen, Ari
dc.contributor.authorPellinen, Terhi
dc.contributor.departmentDepartment of Civil Engineeringen
dc.date.accessioned2018-05-22T14:39:41Z
dc.date.available2018-05-22T14:39:41Z
dc.date.issued2017-06-01
dc.description.abstractDuring the production and recycling of asphalt concrete, bitumen in contact with inorganic particles is exposed to air at high temperatures. As a result an oxidation of bitumen, also known as aging, occurs. The reaction between bitumen and air at 163 °C was studied insitu with and without the presence of inorganic impurities by means of fourier transform infrared spectroscopy in the attenuated reflectance mode. This oxidation was discovered to be a step-wise reaction facilitated by the oxidation of thiols and creation of peroxides within the system. The rate of reaction was demonstrated to depend on the type of impurity present, of which iron (III) chloride was the strongest catalyst. It was further demonstrated that the oxidation reaction is inhibited by the adsorption of thiol species present in the system on copper particles. Combining copper with the iron (III) chloride-containing system also resulted in the inhibition of signal increase in the sulfoxide region of the spectra. The results of this preliminary research on the bitumen oxidation reaction presented are proposed for further research regarding control of aging of asphalt concrete, especially during the recycling works.en
dc.description.versionPeer revieweden
dc.format.extent17
dc.format.mimetypeapplication/pdf
dc.identifier.citationMakowska, M, Hartikainen, A & Pellinen, T 2017, 'The oxidation of bitumen witnessed in-situ by infrared spectroscopy', Materials and Structures, vol. 50, no. 3, 189. https://doi.org/10.1617/s11527-017-1058-yen
dc.identifier.doi10.1617/s11527-017-1058-y
dc.identifier.issn1359-5997
dc.identifier.issn1871-6873
dc.identifier.otherPURE UUID: 72e9fce0-726b-4961-84d0-426c427155c7
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/72e9fce0-726b-4961-84d0-426c427155c7
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85020543840&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/20505618/10.1617_s11527_017_1058_y.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/30984
dc.identifier.urnURN:NBN:fi:aalto-201805222424
dc.language.isoenen
dc.publisherSpringer
dc.relation.ispartofseriesMaterials and Structuresen
dc.relation.ispartofseriesVolume 50, issue 3en
dc.rightsopenAccessen
dc.subject.keywordAsphalt
dc.subject.keywordATR
dc.subject.keywordBitumen
dc.subject.keywordFT-IR
dc.subject.keywordOxidation
dc.subject.keywordRecycling
dc.titleThe oxidation of bitumen witnessed in-situ by infrared spectroscopyen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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