Effects of Microwave Heating and Long-Term Aging on the Rheological and Chemical Properties of Recovered Bitumen
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Microwave heating of asphalt pavement is a promising technique to reduce the maintenance and increase the service life of materials through self-healing of cracks. Previous studies have shown that microwave heating technology at high temperatures could damage the bitumen of asphalt mixture, which is an unwanted effect of the crack-healing technique. In this study, the effects of microwave heating and long-term aging on the rheological and chemical properties of recovered bitumen were quantified using a frequency sweep test and Fourier Transform Infrared Spectrometry analysis, respectively. The main results indicate that microwave heating has no significant effect on the aging performance of G* and δ for aged asphalt mixtures. However, for newer bitumens, the rheological properties G* and δ show minor changes after microwave heating was applied. Overall, this study confirms that microwave heating is a potential alternative for maintenance of asphalt pavements, without severely affecting the rheological and chemical properties of bitumen.
Details
Originalsprache | Englisch |
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Aufsatznummer | 7787 |
Fachzeitschrift | Materials |
Jahrgang | 14 |
Ausgabenummer | 24 |
Publikationsstatus | Veröffentlicht - 1 Dez. 2021 |
Peer-Review-Status | Ja |
Externe IDs
Scopus | 85121360427 |
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