Title
Experimental Validation of the Dual-Oxidation Routes in Bituminous Binders
Author
Pipintakos, Georgios (Universiteit Antwerpen)
Ching, H. Y.Vincent (Universiteit Antwerpen)
Mühlich, Uwe (Universiteit Antwerpen)
Soenen, Hilde (Nynas NV)
Van Doorslaer, Sabine (Universiteit Antwerpen)
Sjövall, Peter (Research Institutes of Sweden RISE)
Varveri, Aikaterini (TU Delft Pavement Engineering) 
Vande Velde, Christophe (Universiteit Antwerpen)
Lu, Xiaohu (Nynas AB)
Contributor
Di Benedetto, H. (editor)
Baaj, H. (editor)
Chailleux, E. (editor)
Tebaldi, G. (editor)
Sauzéat, C. (editor)
Mangiafico, S. (editor)
Date
2021
Abstract
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.
Subject
Bitumen
EPR
FTIR
Oxidative ageing
TOF-SIMS
To reference this document use:
http://resolver.tudelft.nl/uuid:254500e9-4fcf-4e60-9105-686e6b869c78
DOI
https://doi.org/10.1007/978-3-030-46455-4_115
Publisher
Springer, Cham
Embargo date
2022-03-26
ISBN
978-3-030-46454-7
Source
Proceedings of the RILEM International Symposium on Bituminous Materials
Event
RILEM International Symposium on Bituminous Materials, 2020-12-14 → 2020-12-16, Online conference, , France
Series
RILEM Bookseries, 2211-0844, 27
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
book chapter
Rights
© 2021 Georgios Pipintakos, H. Y.Vincent Ching, Uwe Mühlich, Hilde Soenen, Sabine Van Doorslaer, Peter Sjövall, Aikaterini Varveri, Christophe Vande Velde, Xiaohu Lu