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Modelling of Asphalt Concrete Stiffness in the Linear Viscoelastic Region

机译:线性粘弹区沥青混凝土刚度建模

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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 (5x105
机译:刚度模量是沥青混合物粘弹性行为的建模中使用的基本参数。基于线性粘弹性范围的主曲线,可以预测不同负载时间和温度下沥青混凝土的机械性能。本文讨论了流变数学模型下的主曲线的构建,即Sigmoider函数模型(MEPDG),分数模型和BAHIA和同携手工的模型与机械流变模型的结果相比,即广义Huet-Sayegh模型,广义麦克斯韦尔图型和汉堡模型。出于该分析的目的,制备了用于粘合剂粗糙层和交通类别KR3的参考沥青混凝土混合物(表示为AC16W)(5×10 5

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