| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Varveri, Aikaterini
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylenecitations
- 2023Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylenecitations
- 2023Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylenecitations
- 2023Bituminous binder and bituminous mixture modified with waste polyethylenecitations
- 2021Exploring the oxidative mechanisms of bitumen after laboratory short- and long-term ageingcitations
- 2021Accelerated carbonation of ordinary Portland cement paste and its effects on microstructure and transport properties
- 2021Experimental Validation of the Dual-Oxidation Routes in Bituminous Binderscitations
- 2020Experimental investigation of the oxidative ageing mechanisms in bitumencitations
- 2019Effect of moisture on the adhesion of aggregate–binder systemscitations
- 2018Effects of different aging methods on chemical and rheological properties of bitumencitations
- 2017Moisture damage susceptibility of asphalt mixtures
- 2016Microstructural analysis of porous asphalt concrete mix subjected to rolling truck tire loadscitations
- 2016Durability of European Asphalt Mixtures Containing Reclaimed Asphalt and Warm-Mix Additives
Places of action
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article
Experimental investigation of the oxidative ageing mechanisms in bitumen
Abstract
<p>Oxidative ageing in bituminous materials is considered one of the most important factors for distress types in road applications. This paper aims to offer insights into the validity of commonly held beliefs regarding the oxidation phases of ageing in bitumen, the fast- and the slow-rate phase, and explore the main oxidation products formed upon ageing. In order to evaluate possible differences between bitumen types, the penetration grade as well as the bitumen production process was varied. Thus, the ageing of three different binders was first studied by Fourier-Transform Infrared (FTIR) and Electron Paramagnetic Resonance (EPR) spectroscopy. The formation of oxygen-containing molecular structures on the bitumen surface during ageing was studied with Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS). The results of FTIR reveal a gradual increase of sulfoxides upon ageing, while the EPR results show an increase of organic carbon-centred radicals. In parallel, TOF-SIMS results provide evidence for an increase of oxygenated compounds, such as SO<sub>x</sub><sup>-</sup>-, HO<sub>x</sub><sup>-</sup>- and NO<sub>x</sub><sup>-</sup>-containing compounds. It appears also that paramagnetic metal species, such as vanadyl-porphyrins, are insusceptible during ageing. Overall, the findings of this study are in agreement with a mechanism comprising two rate-determining phases and support the formation of different oxygenated products. It is believed that the experimental approach used in this work may contribute further to an improved understanding of the ageing mechanisms in bitumen.</p>