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Study of the permanent deformation of binders and asphalt mixtures using rheological models of fractional viscoelasticity

Abstract: ABSTRACT: The accumulation of load on asphalt pavement as a result of increased vehicle traffic generates problems in the asphalt layer due to permanent deformation. For correct design, it is essential to carry out a rheological characterization of the aggregate-binder materials that make up the asphalt mix. This article shows the analysis of permanent deformation based on the rheological behavior of asphalt mixtures and binders. Experimental tests based on creep and recovery phenomena allow the study of permanent deformations using theoretical models of fractional viscoelasticity. The rheological characterization allows us to detail the elasticity of the aggregate, ?2,, and the elastic-viscous properties of the different binders used, ?1 and ? .The results obtained show that it is possible to predict the deformations of the recovery phenomenon in asphalt mixtures from the rheological values (aggregate-binder) obtained in the creep process. Besides, the properties of the asphalt binder (?1 and ?) correlate with the recovery phenomenon of the MSCR test for conventional and modified materials. The methodology proposed allows a better understanding of the states of permanent deformation to improve the design of binders and asphalt mixtures..

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Construction and Building Materials Volume 260, 10 November 2020, 120438

Editorial: Elsevier

 Fecha de publicación: 01/11/2020

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

DOI: 10.1016/j.conbuildmat.2020.120438

ISSN: 0950-0618,1879-0526

Url de la publicación: https://doi.org/10.1016/j.conbuildmat.2020.120438

Autores/as

MANUEL EVANDRO LAGOS VARAS

RAPOSEIRAS, A.C.

MOVILLA-QUESADA, D.

ARENAS, J.P.

OSVALDO MUÑOZ CÁCERES

ANDRES-VALERI, V. C.