Comparison of winter temperature profiles in asphalt and concrete pavements.

Details

• Creators:
  Guthrie, W. Spencer ; Dye, Jeremy B. ; Eggett, Dennis L.
• Corporate Creators:
  Brigham Young University. Dept. of Civil and Environmental Engineering
• Subject/TRT Terms:
  • Asphalt pavements
  • Concrete pavements
  • Surface temperature
  • Winter
  • Freeze thaw durability
  • Temperature sensors
  • Linear regression analysis
  • Finite element method
  • Subsoil
• Publication/ Report Number:
  UT-14.01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Utah
• Corporate Publisher:
  Utah. Dept. of Transportation
• Abstract:
  The objectives of this research were to 1) determine which pavement type, asphalt or concrete, has ; higher surface temperatures in winter and 2) compare the subsurface temperatures under asphalt and ; concrete pavements to determine the pavement type below which more freeze-thaw cycles of the ; underlying soil occur. For analysis, 12 continuous months of climatological data primarily from the 2009 ; calendar year were acquired from 22 environmental sensor stations (ESSs) near asphalt roads and nine ; ESSs near concrete roads. To predict pavement surface temperature, a multiple linear regression was ; performed with input parameters of pavement type, time period, and air temperature. Similarly, a multiple ; linear regression was performed to predict the number of subsurface freeze-thaw cycles, based on month, ; latitude, elevation, and pavement type. A finite-difference model was created to model surface ; temperatures of asphalt and concrete pavements based on air temperature and incoming radiation. ; With respect to pavement surface temperatures, the results showed that, for near-freezing conditions, ; asphalt is warmer during the afternoon and concrete is warmer during other times of the day, but that ; neither pavement type is warmer, on average. The regression equation predicting the number of subsurface ; freeze-thaw cycles provided estimates that did not correlate well with measured values; data that were not ; available for this research but are likely necessary in estimating the number of freeze-thaw cycles under the ; pavement include pavement layer thicknesses, layer types, and layer moisture contents.
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• Format:
  PDF
• Funding:
  99087
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27863/dot_27863_DS1.pdf
• File Type:
  [PDF - 5.60 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b5326106f85c2254b7aebf9ec5e9e66d04ba2100822a8cc890c34ac1d4c67b4b