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Can the aging processes of asphalt be inhibited?

Members of the MSAGroup team including: Szymon Malinowski, Agneszka Woszuk and Wojciech Franus published a paper entitled: "Modern two-component modifiers inhibiting the aging process of road bitumen", exploring the possibility of inhibiting the bitumen aging process by using two-component polymer composites based on chitosan. The studies, published in the prestigious international journal Construction and Building Materials (IF =7.4) included an evaluation of changes in the bitumen physicochemical properties due to technological ageing. Moreover, the authors investigated in this paper how the chemical structure of road bitumen changes during the production of the asphalt mixture. The performed studies and determined indicators showed that composites rich in amine groups, i.e. chitosan:polyaniline, inhibit the technological ageing processes of bitumen with the greatest efficiency and enable the maintenance of the original bitumen physicochemical properties at a level of up to 90%. For more details, please read: https://doi.org/10.1016/j.conbuildmat.2023.133838. The research was carried out within the framework of the research task MINIATURA 5 (No. 2021/05/X/ST8/00161) funded by the National Science Centre.

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