Deicing Performance of Road Salt: Modeling and Applications

This paper describes the results of a field study designed to quantify the effects of various factors on the snow-melting performance of salt. Many tests were conducted in a realistic environment over two winter seasons, covering more than 70 snow events, with temperatures ranging from –14°C to 3°C and snowfalls ranging from ~0.2 to 21.0 cm. For each snow event, salts were applied to a set of test sections with specific application rates, and time series performance; condition data such as snow coverage or bare pavement status, friction, pavement and air temperature, sky view, and humidity were collected. An exploratory data analysis was performed to identify the key factors influencing the snow-melting performance of salt, such as application rate, temperature, and snow amount. A multiple linear regression model was calibrated for the relationship between the key snow-melting performance indicators: bare pavement regain time and various influencing factors. The calibrated model was then applied to determine the minimum amount of salt required for achieving a given level of service under specific weather events. Although the research was motivated by the need to develop optimal salt application rates for parking lots and sidewalks, the results could be equally applicable for other transportation facilities after factors specific to the facility, such as traffic and dilution, are accounted for.

• Record URL:
  https://doi.org/10.3141/2440-10
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Blurbs/172087.aspx
• Authors:
  • Hossain, S M. Kamal
  • Fu, Liping
  • Lu, Chi-Yin
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 76–84
• Monograph Title: Maintenance Services, Transportation Weather, and Winter Maintenance
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2440
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Deicing chemicals; Field studies; Field tests; Linear regression analysis; Melting; Test sections
• Uncontrolled Terms: Performance indicators
• Subject Areas: Highways; Maintenance and Preservation; Pavements; I62: Winter Maintenance; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01515680
• Record Type: Publication
• ISBN: 9780309295291
• Report/Paper Numbers: 14-4007
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Feb 24 2014 5:00PM