Can you really recycle PEMS back to PEMS and be confident also on surface properties?

Porous European Mixes (PEMs) are open-graded surface courses with high void content (circa 20%). About ten million square meters of PEMs are going to be definitely laid in Southern Italy (Calabria), but there is still considerable need for additional performance information for the use of Reclaimed Asphalt Pavement (RAP) in premium surface course mixes, and this will pose rehabilitation problems. Therefore research is needed. In light of these premises, objectives and scope were focused on the idea of recycling porous asphalt concretes back into porous asphalt concretes. Two main issues were addressed: I) what about the bearing properties?; II) what about the friction properties? In order to investigate on the above-mentioned issues an experimental plan was designed. Mixes with high RAP (reclaimed asphalt pavement) content were prepared and tested. Design and construction features, including mix design and mixing procedures were addressed.Mechanical performance was adequate and environmental compatibility was achieved. The tests carried out are encouraging about the possibility of achieving a satisfactory level of surface performance. Practical applications and perspectives in rehabilitation, maintenance, and research are outlined.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 11p
  • Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

Filing Info

  • Accession Number: 01516053
  • Record Type: Publication
  • ISBN: 2840602679
  • Files: TRIS
  • Created Date: Feb 25 2014 3:07PM