Fracture Performance of a Large-Stone Asphalt Mixture Based on a Monotonic Tensile Overlay Test
作者： Tao Fu , Junlin Liang , Jianhui Wei
DOI: 10.1155/2021/6622024
关键词: Base course 、 Fracture mechanics 、 Ultimate tensile strength 、 Composite material 、 Materials science 、 Asphalt 、 Constitutive equation 、 Fracture (geology) 、 Cracking 、 Fractal dimension
摘要: A large-stone asphalt mixture (LSAM) is usually used as the base course of pavement to prevent generation cracks. However, there are few studies on fracture performance and crack resistance LSAMs. Under monotonic tensile loading mode, overlay test (OT) was explored investigate influence different factors cracking performance. The study results indicated that a change in temperature aging variation fractal dimension, energy growth higher than initiation, increased certain extent by decreased temperature, an rate or aging. Finally, constitutive model established based disturbed state concept (DSC), proposed consistent with results.
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