Development of High Performance Asphalt for Prevention of Reflective Cracking

Many methods for prevention of reflective cracking by use of sheets, grids or stress absorbing membranes have been applied for the existing concrete slab pavements or asphalt pavements with severe cracks. Stone Mastic Asphalt (SMA) with high performance asphalt is developed for prevention of reflective cracking. The asphalt is 177 in penetration and 84 degree Celsius in softening point (TR&B). It is modified asphalt with a high-content SBS and a small amount of newly developed additive. The m-value by BBR test of the asphalt is twice that of conventional SBS-modified asphalt. The SMA with the developed asphalt is high in stress absorbing capacity and flexibility as well as in rutting resistance. The number of load cycles to rupture by flexural fatigue test of the SMA with this asphalt is over 200 times as great as that of the SMA with a conventional modified asphalt. Two test pavement sections were built in August 2003 on a national highway in Niigata Prefecture. The objective of the test was to observe asphalt overlays on concrete slab pavements. The thickness of concrete pavement was designed for 1,000 heavy vehicles per day. One of the test sections consisted of a 6-cm thick SMA and the other consisted of a 3-cm thick dense graded asphalt concrete plus a 3-cm thick stress absorbing membrane interlayer (SAMI) on the concrete slab. Four years after overlaying, an inspection of reflective cracking was performed. The percentage of reflective cracking was 0.1% in the SMA section and 10.2% in the SAMI section. From these observations, it could be concluded that the SMA with the developed high performance Asphalt might be useful for overlays to prevent reflective cracking on concrete pavements.

• Record URL:
  https://www.pavementpreservation.org/icpp/paper/71_2010.pdf
• 
• Corporate Authors:

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Foundation for Pavement Preservation

  2025 M Street, NW, Suite 800
  Washington, DC  United States  20036-3309
• Authors:
  • Shimazaki, Masaru
  • Konno, Michito
  • Takahashi, Mitsuhiko
  • Kasahara, Atsushi
• Conference:
  • First International Conference on Pavement Preservation
  • Location: Newport Beach CA, United States
  • Date: 2010-4-13 to 2010-4-15
• Publication Date: 2010

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 227-245
• Monograph Title: Compendium of Papers from the First International Conference on Pavement Preservation

Subject/Index Terms

• TRT Terms: Asphalt concrete; Concrete pavements; High performance concrete; Pavement distress; Pavement maintenance; Rutting; Stone matrix asphalt
• Uncontrolled Terms: Reflective cracking
• Subject Areas: Highways; Pavements; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01158685
• Record Type: Publication
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jun 11 2010 12:05PM