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 Finite Element Method Freeze Thaw Durability Linear Regression Analysis Subsoil Surface Temperature Temperature Sensors Winter
• 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.
  
  
• Format:
  PDF
• Funding:
  99087
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b5326106f85c2254b7aebf9ec5e9e66d04ba2100822a8cc890c34ac1d4c67b4b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27863/dot_27863_DS1.pdf
• File Type:
  [PDF - 5.60 MB ]