Kalampokis, S., Manthos, E., & Valentin, J. (2025). Rheological investigation of bio-modified bitumen with two types of bio-oil. In L. Eberhardsteiner, B. Hofko, & R. Blab (Eds.), Advances in Materials and Pavement Performance Prediction IV : Contributions to the 4th International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2025), 7-9 May 2025, Vienna, Austria (pp. 402–405). TU Wien, E230-03 Road Engineering. https://doi.org/10.34726/10595
Advances in Materials and Pavement Performance Prediction IV : Contributions to the 4th International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2025), 7-9 May 2025, Vienna, Austria
The present study focuses on the evaluation of the conventional and rheological properties of bio-modified bitumen with two types of bio-derived oil (corn oil and sunflower seed oil). For each type of oil three different blends were produced (1%, 3% and 5% by weight of bitumen) utilizing a 35/50 reference bitumen. The conventional properties were assessed via the Penetration, Softening Point, Elastic Recovery, Dynamic Viscosity and Storage Stability tests. The rheological properties were examined via the Dynamic Shear Rheometer (DSR). The fatigue cracking, rutting and permanent deformation resistance were investigated through the fatigue cracking factor, the rutting factor and the high critical temperature, respectively. Two rheological ageing indexes were calculated to examine the impact of bio-modifiers on the ageing susceptibility of bitumen. The two main observations were that the bio-derived oils enhance the resistance to fatigue cracking by softening the bitumen and also reduce its ageing sensitivity.
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Research Areas:
Modeling and Simulation: 35% Structure-Property Relationsship: 30% Computational System Design: 35%
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