Abstract
The rheological characteristics of mastics, or filler-bitumen mixtures, as a component of asphalt mixtures have a significant effect on the overall in-time performance of asphalt pavements such as low temperature cracking, fatigue and rutting behaviour. Viscosity is one of the rheological characteristics which is influenced by the physico-chemical filler-bitumen interaction. In this study, after reviewing some of more often used theories for calculating the viscosity of suspensions, a framework for calculating the viscosity of mastics is presented. This framework aims at covering the entire range of filler concentrations that is found in mastics. Also, a procedure for measuring viscosity mastic from dilute to high concentration mastic using a vane rotor viscometer is introduced. The paper is presenting the first experimental results and discusses the effect of the shape of the investigated fillers on the measured viscosity of the mastics.
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Hesami, E., Jelagin, D., Birgisson, B., Kringos, N. (2012). Towards a New Experimental and Numerical Protocol for Determining Mastic Viscosity. In: Scarpas, A., Kringos, N., Al-Qadi, I., A., L. (eds) 7th RILEM International Conference on Cracking in Pavements. RILEM Bookseries, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4566-7_11
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DOI: https://doi.org/10.1007/978-94-007-4566-7_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-4565-0
Online ISBN: 978-94-007-4566-7
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