Development of a finite element based thermal cracking performance prediction model.

Details

• Creators:
  Buttlar, William G. ; Paulino, Glaucio H.
• Corporate Creators:
  NEXTRANS Center (U.S.) ; University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  Finite Element Method Pavements Pavements, Asphalt--Cracking--Mathematical Models Testing
• Publication/ Report Number:
  011IY01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  NEXTRANS Center (U.S.)
• Abstract:
  Low-temperature cracking of hot-mix asphalt (HMA) pavements continues to be a leading cause of
  
  premature pavement deterioration in regions of cold climate and/or where significant thermal cycling
  
  occurs. Recent advances in fracture testing and modeling of HMA materials have greatly aided in the
  
  understanding of the key mechanisms behind this devastating pavement distress mode. While these
  
  advances have led to new insights into cracking mechanisms and design strategies, there remains the
  
  challenge of implementing these models into a standalone program which can be easily used by other
  
  researchers and practitioners. The proposed supplemental study extends the scope of the existing
  
  pooled fund study to more explicitly capture the interactions between vehicles and the infrastructure.
  
  Following the successful first phase of the National Pooled Fund Study on Low Temperature Cracking, a
  
  second phase will be initiated in mid-2007 and continue for two to three years. While the phase II study
  
  will provide additional funding for more field sections at the Minnesota Road Research (Mn/Road)
  
  facility and other locations in the US (selected participating states), there is a need for additional
  
  research which would facilitate the development of standalone, efficient code for thermal crack
  
  prediction. The main deliverable of this project is a user-friendly, computationally efficient program
  
  called Visual LTC, which can be used to analyze and to design against thermal cracking in asphalt
  
  pavements. This tool will greatly facilitate the design of economical pavement systems and the
  
  utilization of modern material formulations and construction techniques that are environmentally
  
  friendly and sustainable, such as the use of very high amounts of recycled materials and the use of low
  
  energy/low emission warm mix technologies. Planned work in the next phase of this study will lead to
  
  the integration of this software into a more holistic asset management analysis system.
  
  
• Format:
  PDF
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha256:76319a00d1af01a3f78df6d121eabfadfa22b6073c945c0b05300990392693de
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17348/dot_17348_DS1.pdf
• File Type:
  [PDF - 1.82 MB ]