Deicer usage on concrete and asphalt pavements in Utah.

Details

• Creators:
  Guthrie, W. Spencer ; Thomas, Chase D.
• Corporate Creators:
  Brigham Young University. Dept. of Civil and Environmental Engineering
• Subject/TRT Terms:
  • Asphalt pavements
  • Concrete pavements
  • Winter maintenance
  • Deicing chemicals
  • Linear regression analysis
  • Traffic volume
  • Statistical analysis
• Publication/ Report Number:
  UT-14.02
• Resource Type:
  Tech Report
• Geographical Coverage:
  Utah
• Corporate Publisher:
  Utah. Dept. of Transportation
• Abstract:
  The objectives of this research were to 1) compile winter maintenance data for the Utah Department of ; Transportation (UDOT) to directly compare concrete and asphalt pavements with regards to deicer usage and 2) ; determine if there is a statistical difference in deicer usage on concrete and asphalt pavements. To this end, three ; data sources were consulted for this research: Maintenance Management Quality Assurance (MMQA) database, ; UDOT road database, and Google Maps. The final compiled data set prepared for analysis in this research ; contained deicer quantities by deicer type, pavement surface areas by pavement material type, traffic, longitude, ; latitude, and elevation data. The deicer data evaluated in this analysis represented the total quantities of each deicer ; distributed during the 8-year period during which the MMQA database was used by UDOT. ; Several multiple linear regression analyses were performed to determine if concrete or asphalt pavements ; required different amounts of deicers, including salt, Redmond salt, brine, wetted salt, magnesium chloride, sand, ; pre-mix, and wetted pre-mix, during the winter seasons evaluated in this research. From the results of the statistical ; analyses, concrete proportion was statistically significant in models for three of the dependent variables, including ; brine, wetted salt, and wetted pre-mix. However, neither the full nor the reduced regression model prepared for the ; sum of all deicers had concrete proportion as one of the significant variables. The absence of concrete proportion as ; an independent variable in these models shows that, on average, after correcting for differences in traffic volume and ; pavement area, deicer usage in Utah is not affected by pavement type. Therefore, except in areas where applications ; of brine, wetted salt, and wetted pre-mix are common, winter maintenance costs should not be a factor in the ; determination of pavement type.
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• Format:
  PDF
• Funding:
  99087
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27864/dot_27864_DS1.pdf
• File Type:
  [PDF - 1.74 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:7f46fa9095542d6bccc5be30491c59cbff68a8c5a102f542857ab6361d353000