Research on High-Temperature Rheological Properties of Emulsified Asphalt Mastics and Their Influencing Factors

The high-temperature rheological properties of emulsified asphalt mastics have a significant impact on the service performance cold recycled mixtures with emulsions. In this paper, dynamic shear (DSR) test and multiple stress creep recovery (MSCR) are carried out to analyze influence tunneling coal gangue powder (TCGP), portland cement (PC), limestone (LP), four kinds filler binder ratio (F/B) before after rolling thin film oven (RTFOT) ageing. Based principle time–temperature equivalence viscoelasticity material model, main curve under frequency scanning is established, in wide domain analyzed. Finally, grey entropy theory used quantitatively correlation between different high temperature evaluation indices mastics. results show that RTFOT ageing process can significantly enhance deformation resistance residue its rutting factor (G*/sin δ) increases exponentially increase F/B, while phase angle less affected. TCGP PC better performances than those LP most suitable range F/B 0.9~1.2 when as filler, 1.2~1.5 or filler. Grey analysis shows there good two systems DSR MSCR test, both evaluate