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Experimental Validation of the Dual-Oxidation Routes in Bituminous Binders
University of Antwerp, Belgium.
University of Antwerp, Belgium.
University of Antwerp, Belgium.
Nynäs NV, Belgium.
Vise andre og tillknytning
2022 (engelsk)Inngår i: RILEM Bookseries, Springer Science and Business Media B.V. , 2022, Vol. 27, s. 903-909Kapittel i bok, del av antologi (Fagfellevurdert)
Abstract [en]

Oxidative ageing in bituminous materials is considered to be one of the most important factors for distress types in road applications. The increasing interest in oxidative ageing has highlighted the need for a thorough understanding of the oxidation mechanisms at molecular level. This paper offers some insight in the validity of the proposed hypotheses about the oxidation routes of bitumen, the fast- and the slow-rate route, reflecting on previous studies. Fourier-Transform Infrared (FTIR) and Electron Paramagnetic Resonance (EPR) spectroscopy were utilised for this verification. To elucidate the uncertain formation of sulfoxides, an additional surface investigation with Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) was performed. The findings of the aforementioned techniques reveal the existence of the oxidation products reported previously and contribute to the understanding of the oxidation mechanisms. Overall, this research strengthens experimentally the hypotheses of the dual-oxidation routes of bitumen. © 2022, The Author(s)

sted, utgiver, år, opplag, sider
Springer Science and Business Media B.V. , 2022. Vol. 27, s. 903-909
Serie
RILEM Bookseries, ISSN 2211-0844 ; 27
Emneord [en]
Bitumen, EPR, FTIR, Oxidative ageing, TOF-SIMS
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-59776DOI: 10.1007/978-3-030-46455-4_115Scopus ID: 2-s2.0-85116492017OAI: oai:DiVA.org:ri-59776DiVA, id: diva2:1680524
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Tilgjengelig fra: 2022-07-04 Laget: 2022-07-04 Sist oppdatert: 2023-06-05bibliografisk kontrollert

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