Abstract Road pavement is principally made of mineral aggregates and a bitumen binder. Aggregates, due to their mineralogical nature, have complex chemical compositions and physical properties, which are strongly dependent on the minerals that constitute the stones. In pavement technology, bitumen/aggregate affinity is of paramount importance. Moisture damage in hot mix asphalt (HMA) is one of the major concerns in durability of flexible pavements, to improve the adhesion between the bitumen and the stones and increase the life of the road pavements often it is necessary using additives as the antistripping agents. Currently, there are several techniques such as the Boiling Test, the Rolling Bottle Test (RBT), etc., which evaluate the adhesion between the bitumen and the stones, however, most of them are based on a subjective evaluation. In the present paper, several types of mineral aggregates are characterized in detail by optical microscopy (OM) and X-ray powder diffraction (XRPD) in order to correlate the Boiling Test and the contact angle method to investigate the level of bitumen/aggregate affinity. For this reason, a single type of modified bitumen and two adhesion promoters were studied. The obtained results show the reliability of the technique used. However, there are still some limitations regarding the use of a contact angle test in assessing bitumen/aggregate affinity.

中文翻译：

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沥青附着力评价试验方法、沸腾和接触角试验之间的比较和相关性

摘要 道路路面主要由矿物骨料和沥青粘合剂组成。由于其矿物性质，骨料具有复杂的化学成分和物理特性，这在很大程度上取决于构成石头的矿物质。在路面技术中，沥青/骨料的亲和力是至关重要的。热拌沥青 (HMA) 中的水分损坏是柔性路面耐久性的主要问题之一，为了提高沥青和石头之间的附着力并延长路面的使用寿命，通常需要使用添加剂作为抗剥落剂。目前，有几种技术，如沸腾试验、滚瓶试验（RBT）等，可以评估沥青和石头之间的附着力，但大多数都是基于主观评价。在本论文中，几种类型的矿物骨料通过光学显微镜 (OM) 和 X 射线粉末衍射 (XRPD) 进行了详细表征，以便将沸腾测试和接触角方法关联起来，以研究沥青/骨料的亲和力水平. 为此，研究了单一类型的改性沥青和两种增粘剂。获得的结果表明所用技术的可靠性。然而，在使用接触角测试评估沥青/集料亲和力方面仍然存在一些限制。研究了单一类型的改性沥青和两种增粘剂。获得的结果表明所用技术的可靠性。然而，在使用接触角测试评估沥青/集料亲和力方面仍然存在一些限制。研究了单一类型的改性沥青和两种增粘剂。获得的结果表明所用技术的可靠性。然而，在使用接触角测试评估沥青/集料亲和力方面仍然存在一些限制。