Abstract
The first objective of this study is to highlight the effect of the rejuvenator on the linear viscoelastic (LVE) properties of various blends of a fresh 50/70 binder and a reclaimed asphalt pavement (RAP) binder, with a rejuvenator (a mixture of vegetal oils). A total of 17 binders (including pure fresh and RAP binders) produced as blends of two base binders and a rejuvenator in various proportions were tested. Dynamic shear rheometer tests were performed, and the experimental results were modelled using the 2S2P1D model. The second main objective was to present and analyse two different approaches for estimation of 2S2P1D parameters and temperature shift factors of binder blends, based on reduced experimental data (only data for the base constituents). Good correlation was found between the direct determination and the estimated results. However, a more accurate estimation was performed with the second approach.
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