2026-08-28T09:04:47Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1551202025-04-30T20:18:26Zcom_10366_4368com_10366_4349com_10366_3946com_10366_3823col_10366_4369

Lagos-Varas, Manuel Movilla-Quesada, Diana Arenas, Jorge Patricio Raposeiras, Aitor Castro-Fresno, Daniel Calzada Pérez, Miguel Ángel Vega-Zamanillo, Ángel Maturana, Jorge 2024-01-31T17:26:39Z 2024-01-31T17:26:39Z 2019-03-10 Lagos-Varas, M., Movilla-Quesada, D., Arenas, J. P., Raposeiras, A. C., Castro-Fresno, D., Calzada-Pérez, M. A., . . . Maturana, J. (2019). Study of the mechanical behavior of asphalt mixtures using fractional rheology to model their viscoelasticity. Construction and Building Materials, 200, 124-134. doi:10.1016/j.conbuildmat.2018.12.073 0950-0618 http://hdl.handle.net/10366/155120 10.1016/j.conbuildmat.2018.12.073 [EN] This study focuses on themechanical behavior of asphalt mixtures composed of aggregate particles attached with an asphalt binder. Asphalt mixtures are viscoelastic composite materials widely used in the construction of pavement layers. The modelling of such materials is currently done using the Burgers model. However, this model is limited when explaining some of the viscoelastic phenomena of an asphalt mixture, mainly because the Burgers model was developed for a single material with a dual nature. This work presents a newapproach that provides amore appropriate framework for studying asphalt mixtures. Themodel assumes an aggregate particle enclosed by an asphalt material. Viscoelastic equations were developed using derivatives of fractional order. Then, the creep, recovery, and relaxation phenomena in an asphalt mixture were analyzed using the new model. Unlike the Burgers model, the new model can predict the elastic jump observed at the beginning of the creep modulus. Thus, the new model seems to describe better those practical cases of asphalt mixtures used in the construction of pavement layers. The new model can be used to modify the properties of the binder for designing optimized and more resistant asphalt mixtures. eng http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Viscoelacticity Asphalt mixtures Fractional rheology Aggregate Binder Study of the mechanical behavior of asphalt mixtures using fractional rheology to model their viscoelasticity info:eu-repo/semantics/article