Bitumen Emulsion and Foam Bitumen for Cold Recycled and Bitumen Stabilized Materials: A Comparison Based on Performances, Costs and Safety

The strong demand for environmental sustainable techniques in road pavements has increased during the years due to environmentally-friendly worldwide policies of the major industrialized countries. One of the consequences is the adoption of cold, in place recycling and bitumen stabilization as two of the preferred technologies for addressing rehabilitation by reusing material of existing pavements. Stabilization with bitumen enhances the performances of subgrade, providing durability equal or exceeding that achievable through virgin materials, even at lower costs. Cold recycling and bitumen stabilized materials for road pavements, using either bitumen emulsion or foamed bitumen, are internationally considered environmentally sustainable and cost effective; when correct construction techniques are used, these pavements perform very well. Cold recycling has long been used in the past, but little research is aimed at comparing the two binders (bitumen emulsion and foamed bitumen). In this paper the authors analyze performance and cost and outline risks related to bitumen emulsion and foamed bitumen focusing on an Italian context. In particular, cost, equipment and environment sustainability are compared based on results from laboratory and real scale applications. Finally, a simplified analysis on major causes of risk is reported.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9789561412309
• Supplemental Notes:
  • The local host for the conference is Pontificia Universidad Catolica de Chile; the international host is the Transportation Research Board of the National Research Council, USA.
• Corporate Authors:

  Pontificia Universidad Catolica de Chile

  College of Engineering
  Avenida Vicuna Mackenna 4860, Macul
  Santiago,   Chile 
• Authors:
  • Crispino, Maurizio
  • Brovelli, Claudio
• Conference:
  • Eighth International Conference on Managing Pavement Assets
  • Location: Santiago , Chile
  • Date: 2011-11-15 to 2011-11-19
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 8p
• Monograph Title: 8th International Conference on Managing Pavement Assets, November 15-19, 2011, Santiago, Chile: "Fulfilling the Social, Economic and Environmental Responsibility for Sustainable, Well Managed, Better Roads"

Subject/Index Terms

• TRT Terms: Cold in-place recycling; Emulsified asphalt; Foamed asphalt; Pavement maintenance; Rehabilitation; Subgrade (Pavements); Sustainable development
• Uncontrolled Terms: Stabilization
• Geographic Terms: Italy
• Subject Areas: Highways; Maintenance and Preservation; Pavements; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01366575
• Record Type: Publication
• ISBN: 9789561412309
• Report/Paper Numbers: ICMPA068
• Files: TRIS
• Created Date: Mar 29 2012 11:30AM