Nano-aggregation of asphaltenes and its influence on the multiscale properties of bitumen recycled through multiple ageing and rejuvenation cycles

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 512; p. 162348
• Main Authors: Hu, Yongping, Yin, Yike, Sreeram, Anand, Liu, Jiayao, Si, Wei, Tang, Dong, Airey, Gordon D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.05.2025
• Subjects: Ageing; Asphaltenes; Bitumen; Multiscale characterisation; Nano-aggregation; Rejuvenation; Repeated recycling; Asphaltenes; Ageing; Repeated recycling; Rejuvenation; Nano-aggregation; Bitumen; Multiscale characterisation

•Ageing results in the aggregation of asphaltenes while rejuvenation effectively reduced aggregation.•The microstructure of aged bitumen is not recoverable while the chemical composition is partially recoverable.•The overall performance of bitumen remains within acceptable limits after multiple cycl...