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

被引：27

作者：

Lagos-Varas, M. ^{[1
,2
]}

Raposeiras, A. C. ^{[1
]}

Movilla-Quesada, D. ^{[1
]}

Arenas, J. P. ^{[3
]}

Castro-Fresno, D. ^{[2
]}

Munoz-Caceres, O. ^{[1
,2
]}

Andres-Valeri, V. C. ^{[1
]}

机构：

[1] Univ Austral Chile, Fac Engn Sci, Inst Civil Engn, Gi2V Res Grp, Valdivia, Chile

[2] Univ Cantabria, Dept Transportat & Technol Projects & Proc, GITECO Res Grp, Santander 39005, Spain

[3] Univ Austral Chile, Fac Engn Sci, Inst Acoust, POB 567, Valdivia, Chile

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 260卷

关键词：

Permanent deformation; Rheological properties; MSCR; Viscoelastic; Creep-recovery; Asphalt binder; RUTTING PERFORMANCE; CREEP-RECOVERY; BEHAVIOR; MSCR; PROPERTY; PAVEMENT; DSR;

D O I：

10.1016/j.conbuildmat.2020.120438

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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, xi(2), and the elastic-viscous properties of the different binders used, xi(1) and eta. 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 (xi(1) and eta) 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. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

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