The primary objective of this study is to identify a parameter characterizing the binder, based on which it would be possible to predict the quality of asphalt concrete (AC) made with given binders in terms of their resistance to permanent deformation. An additional objective of the study is to find a relationship between the result of the proposed creep test under repeated shear loading performed on the asphalt binder itself and the rutting test performed on slabs made of AC. An analysis of the obtained results is presented, and the existence of a correlation between the proposed parameter and the rut depth is demonstrated. This indicates the potential possibility of replacing the expensive rutting test with a much cheaper and simpler test that can be performed in a DSR rheometer.Road structures are currently subjected to increasing traffic loads. (…)
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Source: Logistyka Magazine