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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Effect of Thermal Cycles on Creep Behavior of Bituminous Binder in Hot Regions
Bachir Glaoui1, Mahdjoub Bendjima1, M’hamed Merbouh1 and Martin Van de Ven2
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DOI:10.17265/1934-7359/2024.07.004
1. Laboratoire de la Fiabilité des Matériaux et Structures en Régions Sahariennes (FIMAS), Université de Béchar B.P. 417, Béchar, 08000, Algérie
2. Laboratory of Road and Railway Engineering, TU Delft, P.O. Box 5048 2600 GA Delft, The Netherlands
This research is devoted to the study of creep behavior of asphalt binder in hot region. This binder was subjected to thermal cycles due to the variation of temperature from day to night. These cycles produce a heating-cooling phenomenon. To evaluate the effect of climate change in laboratory, the DSR (dynamic shear rheometer) was used, and the results found with the nine samples were compared. These thermal cycles led to aging and therefore hardening of the binder. Thus, a rheological model was proposed that can represent the curves obtained experimentally, where it is able to describe the creep behavior of binders tested. A new model is proposed that correlates well with the experimental curves, which is called A + 2 K.
Bitumen, temperature, heating/cooling, DSR, BBR, model.
Journal of Civil Engineering and Architecture 18 (2024) 334-339 doi: 10.17265/1934-7359/2024.07.004
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