Oxidation Hardening Kinetics of the Rheological Function G '/(eta '/G ') in Asphalts Academic Article uri icon

abstract

  • The authors used 9 asphalts oxidized at various temperatures and pressures to determine the hardening kinetics for the DSR function, an easily measured and meaningful surrogate for 15C ductility that relates well to age-related binder deterioration. For each asphalt, there is a rapid initial period that slows to a constant rate period. This constant rate period can be represented by carbonyl formation (oxidation) rate times a hardening susceptibility (HS). For the DSR function and viscosity, the HS and initial jump were pressure-but not temperature-dependent. The DSR function initial jump was relatively higher than the viscosity initial jump. 2011 Taylor & Francis Group, LLC.

published proceedings

  • PETROLEUM SCIENCE AND TECHNOLOGY

author list (cited authors)

  • Juristyarini, P., Davison, R., & Glover, C. J.

citation count

  • 6

complete list of authors

  • Juristyarini, P||Davison, R||Glover, CJ

publication date

  • July 2011