Abstract Asphalt pavement is under different climatic conditions throughout its service life, which means that fatigue cracking does not occur at a specific temperature, but at a temperature range. The main objective of this paper is to evaluate the influence of different temperatures in the fatigue life of two asphalt binders: a non-modified binder (penetration grade 30/45) and a highly polymermodified binder (HPMB). The fatigue resistance characterization was performed by means of a linear amplitude sweep (LAS) test at the temperatures of 10, 15, 20, 25, and 30°C using a dynamic shear rheometer (DSR). From the dynamic shear modulus (|G*|) results, adhesion loss was observed between the binder and the rheometer parallel plate at the lower temperature of 10°C,while at higher temperatures (25 and 30°C) plastic flow was observed rather than fatigue damage. Therefore, considering that the actual test procedure does not specify the testing temperature, the evaluation of failure mechanism is essential to validate test results, because the random selection of test temperature might lead to inconsistent data.

中文翻译：

---

温度对沥青结合料疲劳行为的影响

摘要 沥青路面在其整个使用寿命期间处于不同的气候条件下，这意味着疲劳开裂不是在特定温度下发生，而是在一定温度范围内发生。本文的主要目的是评估不同温度对两种沥青结合料疲劳寿命的影响：非改性结合料（渗透等级 30/45）和高度聚合物改性结合料（HPMB）。使用动态剪切流变仪 (DSR) 在 10、15、20、25 和 30°C 的温度下通过线性振幅扫描 (LAS) 测试进行疲劳抗力表征。根据动态剪切模量 (|G*|) 结果，在 10°C 的较低温度下观察到粘合剂和流变仪平行板之间的附着力损失，而在较高温度（25 和 30°C）下，观察到塑性流动而不是疲劳损坏。因此，考虑到实际测试程序并没有规定测试温度，失效机制的评估对于验证测试结果至关重要，因为测试温度的随机选择可能导致数据不一致。