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Performance Characteristics of Nano-Modified Asphalt Mixtures

  • Lucia TsantilisEmail author
  • Giuseppe Chiappinelli
  • Orazio Baglieri
  • Pier Paolo Riviera
  • Fabrizio Miglietta
  • Ezio Santagata
Conference paper
  • 110 Downloads
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 76)

Abstract

The growing need for high quality paving materials has aroused an increasing interest in innovative reinforcing agents, such as those characterized by nanometric dimensions. The experimental study presented in this paper focused on the use in asphalt mixtures of nanoclays and multiwall carbon nanotubes as bitumen modifiers. The performance characteristics of asphalt mixtures containing these nano-sized additives and those of a reference neat mixture were compared in a wide array of temperature and loading conditions. The testing program included the assessment of linear viscoelastic characteristics, anti-rutting potential and crack propagation resistance, by means of stiffness modulus, flow number and semi-circular bending tests, respectively. Results highlighted that both types of nano-additives have the potential to improve the performance properties of neat asphalt mixtures, with nanoclays yielding a superior reinforcing action.

Keywords

Asphalt mixture Nanoclays Multiwall carbon nanotubes Rutting Cracking 

Notes

Acknowledgements

The study reported in this paper is part of the FIRB research project on “Innovative nano-structured and polymer-modified bituminous materials” funded by the Italian Ministry of Education, University and Research (MIUR) (Grant RBFR10JOWO).

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Lucia Tsantilis
    • 1
    Email author
  • Giuseppe Chiappinelli
    • 1
  • Orazio Baglieri
    • 1
  • Pier Paolo Riviera
    • 1
  • Fabrizio Miglietta
    • 1
  • Ezio Santagata
    • 1
  1. 1.Department of Environment, Land and Infrastructure EngineeringPolitecnico di TorinoTurinItaly

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