Rheological Analysis of The Aging Behavior of Short-Term Aged Pure And SBS-Modified Asphalt Binders

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Firat University Journal of Experimental and Computational Engineering
Cilt: 4 Sayı: 2
Rheological Analysis of The Aging Behavior of Short-Term Aged Pure And SBS-Modified Asphalt Binders

Rheological Analysis of The Aging Behavior of Short-Term Aged Pure And SBS-Modified Asphalt Binders

Pages : 276-289

View : 44 | Download : 30

Publication Date : 2025-06-26

Article Type : Research Paper

Abstract :Flexible pavements consist of a bituminous binder and certain graded aggregate. The performance of the bitumen determines the overall pavement performance. Bitumen undergoes short-term aging from production to application, accounting for most of its total aging during service life. This study rheologically investigates the short-term aging behavior of 70/100 pure bitumen and SBS-modified bitumen. Frequency Sweep test was performed on bitumen samples with Dynamic Shear Rheometer (DSR) device at different frequency (0.01-10 Hz) and temperature (40, 50, 60, 70°C) ranges. The complex modulus and complex viscosity master curves of the binders were obtained by processing the experimental data and the curves were subjected to rheological model analysis. The study showed that SBS modification enhanced aging resistance by preserving elastic properties. Moreover, the master curves were applied to rheological models with high accuracy.
Keywords : Bitüm, SBS, Reolojik model, DSR, Frekans taraması

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