Published: 2025-12-04

Testing and evaluation of the new polymer-modified binder compositions with improved resistance against thermo- and photo- oxidative aging

Kamil Niemyjski , Jakub Kamiński , Mateusz Kędzierski

Abstract

The article presents the use of aging evaluation methods to assess new binders with improved aging resistance. A series of new compositions were subjected to RTFOT, PAV and UV Light accelerated aging and evaluated based on rheological analysis with DSR, FT-IR spectroscopy, alongside standard normative methods for binder evaluation. Furthermore, recent progress in development of standardized FT-IR testing method was taken into consideration in order to compare different aspects of semi quantitive infrared analysis of bitumens. Results of this study highlight the importance of long-term binder stabilization alongside the methods for testing and accurate evaluation of stabilizing efficiency of novel binder compositions, in order to enhance the commercial viability of new binders with significantly improved aging-resistance. Binders with modified composition show approximately 20% higher resistance to both RTFOT + PAV and RTFOT + UV aging, compared to the reference samples.

Keywords:

improved aging resistance, photo-oxidative aging, polymer-modified bitumen, thermo-oxidative aging

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Niemyjski, K., Kamiński, J., & Kędzierski, M. (2025). Testing and evaluation of the new polymer-modified binder compositions with improved resistance against thermo- and photo- oxidative aging. Roads and Bridges – Drogi I Mosty, 24(4), 441–453. https://doi.org/10.7409/rabdim.025.028

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