In-depth understanding of the synergetic effect between the various incorporating constituents in asphalt binders (e.g., polymers, fillers) is needed to design durable paving materials with desired properties. In this research, the focus was first on the effect of the reactivity of fillers on the evolution of adhesive strength between stone aggregates and epoxy modified asphalt mastics during the epoxy polymerization. Uniaxial tensile tests were performed on different combinations of fillers and binders with and without the epoxy-based polymer, and at different modification levels. Based on the results of the tensile tests, the increase of the adhesive strength of mastic with aggregates was generally lower when reactive filler particles (i.e., hydrated lime) were added than of epoxy binders with non-reactive filler. In other words, the non-reactive fillers did not influence the adhesion process and were thus selected for the next step studies on aging. The chemo-mechanical changes of epoxy modified asphalt mastics were analysed after pressure aging vessel and oven-conditioning after various aging times by means of Fourier transform infrared spectroscopy and dynamic shear rheometer. Less sulfoxides formed and higher modulus levels were measured with increasing the epoxy polymer in mastics over oven- and PAV-aging conditions. Due to the pressure difference, the rate of modulus increases and phase angle decrease was higher when the materials were conditioned in PAV than in oven.

中文翻译：

---

沥青胶泥中环氧改性的评价

需要深入了解沥青结合料中各种掺入成分（例如聚合物、填料）之间的协同效应，以设计具有所需性能的耐用铺路材料。在这项研究中，首先关注填料的反应性对环氧聚合过程中石骨料和环氧改性沥青胶粘剂之间粘合强度演变的影响。对填料和粘合剂的不同组合进行单轴拉伸试验，使用和不使用环氧基聚合物，并在不同的改性水平下进行。根据拉伸试验的结果，当添加反应性填料颗粒（即熟石灰）时，胶泥与骨料的粘合强度的增加通常低于含有非反应性填料的环氧粘合剂。换句话说，非反应性填料不影响粘合过程，因此被选择用于下一步的老化研究。利用傅里叶变换红外光谱和动态剪切流变仪分析了环氧改性沥青胶泥经过压力老化容器和烘箱调节不同老化时间后的化学力学变化。在烘箱和 PAV 老化条件下，随着胶粘剂中环氧聚合物的增加，形成的亚砜更少，模量水平更高。由于压力差，材料在 PAV 条件下比在烘箱条件下模量增加率和相角减小率更高。利用傅里叶变换红外光谱和动态剪切流变仪分析了环氧改性沥青胶泥经过压力老化容器和烘箱调节不同老化时间后的化学力学变化。在烘箱和 PAV 老化条件下，随着胶粘剂中环氧聚合物的增加，形成的亚砜更少，模量水平更高。由于压力差，材料在 PAV 条件下比在烘箱条件下模量增加率和相角减小率更高。利用傅里叶变换红外光谱和动态剪切流变仪分析了环氧改性沥青胶泥经过压力老化容器和烘箱调节不同老化时间后的化学力学变化。在烘箱和 PAV 老化条件下，随着胶粘剂中环氧聚合物的增加，形成的亚砜更少，模量水平更高。由于压力差，材料在 PAV 条件下比在烘箱条件下模量增加率和相角减小率更高。