The physical properties of bitumen (ie, asphalt) are a topic of consistent interest in the fields
of oil, gas, and mining. In this study, the relationship between bitumen viscosity and the
rotation of asphaltene clusters was empirically explored via broadband dielectric
spectroscopy (BDS). Cluster size was found to be independent of the concentration, and
BDS was found to be a reliable means to predict viscosity in neat bitumen and concentrated
solutions. Because of the simplicity and portability of modern impedance analyzers, this …