Bio materials with reclaimed asphalt: from lab mixes properties to non-damaged full scale monitoring and mechanical simulation

Three innovative environmentally friendly pavement materials, designed with 50% of Reclaimed Asphalt and three different biomaterials (2 bio-additivated bitumens and 1 bio-binder), were produced in an industrial plant. These mixes were tested in lab and also at full scale using an Accelerated Pavement Test facility. The asphalt mix viscoelastic properties were measured in lab and their intrinsic viscoelastic response were simulated. These rheological models are used to simulate the pavement mechanical response using both elastic and viscoelastic multilayer codes. Hence, full scale measurement performed during the full scale test at an early stage (without damages) can be compared with these simulations. The overall prediction accuracy, when all the signals are considered, is between 4% and 8% for all materials. It can be concluded that material characterisation in lab as well as the selected models are well adapted to simulate actual loading state under a moving load, even for these non-conventional mixes. For temperatures lower than 25°C, elastic modelling appears to be sufficient for pavement structural design with the innovative materials tested here.

• Record URL:
  • https://doi.org/10.1080/14680629.2019.1589557
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • © 2019 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Blanc, Juliette
  • Chailleux, Emmanuel
  • Hornych, Pierre
  • Williams, R Christopher
  • Lo Presti, Davide
  • Del Barco Carrion, Ana Jimenez
  • Porot, Laurent
  • Planche, Jean-Pascal
  • Pouget, Simon
• Publication Date: 2019-4

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp S95-S111
• Serial:
  • Road Materials and Pavement Design
  • Volume: 20
  • Issue Number: sup1
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Biological materials; Live loads; Prototype tests; Reclaimed asphalt pavements; Rheology; Simulation; Structural health monitoring; Viscoelasticity
• Subject Areas: Environment; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01706730
• Record Type: Publication
• Files: TRIS
• Created Date: May 29 2019 5:04PM