A cumulative damage model for predicting and assessing raveling in asphalt pavement using an energy dissipation approach
作者机构：School of Civil Engineering and TransportationSouth China University of TechnologyGuangzhou 510640China
出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)
年 卷 期：2024年第18卷第6期
页 面：949-962页
核心收录：
学科分类：08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 0823[工学-交通运输工程] 082301[工学-道路与铁道工程]
基 金：The authors gratefully acknowledge the financial supports by the National Natural Science Foundation of China(Grant No.51278203) the Natural Science Fund of Guangdong Province(No.2019A1515011965)
主 题：asphalt pavement raveling cumulative damage dissipation energy theory
摘 要：Raveling is a common distress of asphalt pavements,defined as the removal of stones from the pavement *** predict and assess raveling quantitatively,a cumulative damage model based on an energy dissipation approach has been developed at the meso *** construct the model,a new test method,the pendulum impact test,was employed to determine the fracture energy of the stone-mastic-stone meso-unit,while digital image analysis and dynamic shear rheometer test were used to acquire the strain rate of specimens and the rheology property of mastic,*** of the model reveals that when the material properties remain constant,the cumulative damage is directly correlated with loading time,loading amplitude,and loading ***,damage increases with superimposed linear and cosine variations over time.A higher stress amplitude results in a more rapidly increasing rate of damage,while a lower load frequency leads to more severe damage within the same loading ***,an example of the application of the model has been presented,showing that the model can be utilized to estimate failure life due to *** model is able to offer a theoretical foundation for the design and maintenance of anti-raveling asphalt pavements.
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