Investigation on RAP binder in reclaimed asphalt concrete under different blending level: development of a gradual binder extraction method

In order to meet their environmental goals, civil engineering firms reduce their environmental impact by developing solutions to save raw materials and energy. The combined use of these solutions enables a decrease ranging up to 40% of the energy induced by the production of asphalt mixes. With the aim of monitoring the re-melting of the asphalt to be recycled during the recycling process of asphalt mixes, a gradual binder extraction method was developed. Gradual extraction of the binder is obtained by pulverizing solvent on a thin layer of reclaimed asphalt concrete (RAC). Infrared spectrometric analysis of chemical functions in extracted solutions makes the characterization of the homogeneity level of reclaimed asphalt concrete possible. In addition, photographs of non-conventional reclaimed asphalt concrete are presented. These pictures are used to represent visually the homogeneity level of constituents, at a binder scale of the RAC. This innovative approach should enable control of the mix of components and therefore ensure the quality of the asphalt mixes with a high recycling rate. This approach will be correlated with mechanical performance of asphalt mixes.

• Availability:
  • Find a library where document is available. Order URL: http://www.piarc.org/en/order-library/13949-en-Proceedings%20of%20the%20XXIVth%20World%20Road%20Congress,%20Mexico%20-%202011.htm
• Supplemental Notes:
  • Abstract reprinted with permission of the World Road Association – PIARC.
• Corporate Authors:

  World Road Association (PIARC)

  La Grande Arche, Paroi Nord, Niveau 5
  F-92055 La Defense Cedex,   France 
• Authors:
  • Navaro, J
  • Drouadaine, I
  • Pouteau, B
  • Bruneau, D
  • Colin, J
  • Dony, A
• Conference:
  • 24th World Road Congress
  • Location: Mexico City , Mexico
  • Date: 2011-9-26 to 2011-9-30
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: 14p
• Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt concrete; Asphalt mixtures; Binders; Bituminous mixtures; Reclaimed asphalt pavements; Recycled materials
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials; I32: Concrete;

Filing Info

• Accession Number: 01516055
• Record Type: Publication
• ISBN: 2840602679
• Files: TRIS
• Created Date: Feb 27 2014 9:04AM