Modelling of Asphalt Concrete Stiffness in the Linear Viscoelastic Region

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Mazurek, Grzegorz^1 ; Iwaski, Marek^1

Department of Transportation Engineering, Faculty of Civil Engineering and Architecture, Kielce University of Technology, Al. Tysiclecia Pastwa Polskiego 7, Kielce

25-314, Poland^1

关键词: Determination coefficients;    Generalized Maxwell model;    Linear viscoelastic regions;    Linear viscoelasticity;    Non-linear least squares;    Root mean squared errors;    Time-temperature superposition principles;    Viscoelastic behaviour;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/3/032029/pdf
DOI  :  10.1088/1757-899X/245/3/032029

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Stiffness modulus is a fundamental parameter used in the modelling of the viscoelastic behaviour of bituminous mixtures. On the basis of the master curve in the linear viscoelasticity range, the mechanical properties of asphalt concrete at different loading times and temperatures can be predicted. This paper discusses the construction of master curves under rheological mathematical models i.e. the sigmoidal function model (MEPDG), the fractional model, and Bahia and co-workers' model in comparison to the results from mechanistic rheological models i.e. the generalized Huet-Sayegh model, the generalized Maxwell model and the Burgers model. For the purposes of this analysis, the reference asphalt concrete mix (denoted as AC16W) intended for the binder coarse layer and for traffic category KR3 (5×105