Asphalt mastic, the combination of fine-grained mineral particles and asphalt binder, plays a significant role on the performance of Hot Mix Asphalt mixtures. A clear understanding of the effects of both filler and asphalt binder, and their interaction, on the properties of HMAs is critical to ensure a proper mix design and pavement performance. Several researchers have studied the response of the mastic in terms of fatigue, rutting and fracture resistance using different load configurations and equipments. However, a fundamental interpretative model of mastic behaviour, that is intrinsic to that particular filler-asphalt binder combination, has not been defined yet. This study presents a new prototype test in direct tensile configuration to evaluate the rate of damage accumulation of the mastic at intermediate temperatures. The results presented are preliminary and are intended to evaluate the feasibility of developing an interpretative model of mastic at intermediate temperatures in terms of energy dissipation.

细粒矿物颗粒和沥青结合料的沥青胶泥对热拌沥青混合料的性能起着重要作用。清楚地了解填料和沥青粘结剂的作用及其相互作用对HMA的性能至关重要，这对于确保适当的混合料设计和路面性能至关重要。一些研究人员使用不同的载荷配置和设备研究了乳香在疲劳，车辙和抗断裂性方面的响应。然而，尚未确定该特定的填充剂-沥青结合剂组合所固有的乳香行为的基本解释模型。这项研究提出了一种新的原型试验，以直接拉伸配置来评估中温下乳香的损伤累积率。