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Microstructural Investigation of Reclaimed Asphalt Binder with Bio-Based Rejuvenators

  • Maria Chiara CavalliEmail author
  • Martins Zaumanis
  • Lily D. Poulikakos
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 20)

Abstract

Reclaimed asphalt pavement (RAP) has become an important source for road materials for energy consumption in asphalt pavement production. In this work, three different bio based rejuvenators were added to the RAP binder: a vegetable oil, a cashew nut shell oil and a tall oil. To better understand the microstructural morphology, atomic force microscopy (AFM) was used with quantitative nano-mechanical mapping (QNM) showing how the addition of rejuvenators decreased the elastic moduli of the RAP binder before and after aging procedure. Aim of this work is to enlighten the effect of rejuvenators at the morphology of RAP’s binder.

Keywords

Reclaimed asphalt binder Rejuvenators Atomic force microscopy Elastic moduli 

Notes

Acknowledgments

Authors would like to thank the Swiss federal office for the environment grant number UTF 489.19.14/IDM 2006.2423.487 for the financial support.

References

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Copyright information

© RILEM 2019

Authors and Affiliations

  • Maria Chiara Cavalli
    • 1
    • 2
    Email author
  • Martins Zaumanis
    • 1
    • 2
  • Lily D. Poulikakos
    • 1
    • 2
  1. 1.EMPA, Swiss Federal Laboratories for Materials Science and TechnologyDübendorfSwitzerland
  2. 2.ETH Zurich, Institute for Mechanical SystemsZurichSwitzerland

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