Due to budget constraints in Europe, sustainability of pavement materials is taking an increasing part in the construction and maintenance policy of road networks. The aging properties of bituminous binders are known to have a direct impact on the durability of road pavement and must be properly assessed. The measurement of in-situ bituminous binder and asphalt mix performances is the most reliable way to appreciate and measure the consequence of aging and oxidation on materials. However, accelerated test methods provide a cost-efficient, predictive assessment of the aging behavior, provided that these methods are representative of the aging phenomenon in the field. The present study is focused on the low-temperature and the aging properties of various bituminous binders in relation to the corresponding properties of asphalt mixes. In a first publication, investigations were devoted to different binder's characterization method (Fraass, BBR, ABCD) as potential predictive tool to thermal cracking of asphalt mixtures (TSRST). This paper focuses on analyzing the sensitivity of these test methods to the degree of aging of different binders (paving bitumen, crosslinked elastomer-modified binder and physical blend elastomer-modified binder) and asphalt mixes. Based on original investigations, noticeable trends are pointed out aging impact on binders and both methods.
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