Effects of Temperature Segregation on the Volumetric and Mechanistic Properties of Asphalt Mixtures [Tech Summary]

Details

• Creators:
  Mohammad, Louay N. ; Cooper III, Samuel
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Department of Transportation and Development ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Asphalt mixtures
  • Cores (Specimens)
  • Density
  • Laboratory tests
  • Mechanical properties
  • Paving
• Publication/ Report Number:
  State Project No. DOTLT1000008 / LTRC Project No. 14-1B
• Resource Type:
  Brief
• Geographical Coverage:
  Louisiana ; United States
• Edition:
  Tech Summary
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Segregation in asphalt mixtures can be described as a concentration of coarse materials in some areas and fine materials in others, which results in non-uniform mixes that do not duplicate the original design, grading, or asphalt cement. Temperature segregation (TS) is a recently found phenomenon of non-uniform distribution of temperatures across the uncompacted asphalt mat during the construction thanks to the popular use of high-precision portable infrared thermal cameras in the paving sites. While many researchers have reported correlations between the TS and the performance of pavements, many others did not. The lack of agreement on the influence of TS to pavement quality and performance could have resulted from inconsistent definition of temperature segregation and dissimilar ranges of asphalt mat temperatures investigated by different researchers.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/66212/dot_66212_DS1.pdf
• File Type:
  [PDF - 191.79 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:d123b37613d22f7d265e29a34b677a472278df2c11e46ad3acb4b49d1ae4ccf7