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Use of Prewetted Solid Materials for Roadway Anti-Icing

File Language:
English


Details

  • Alternative Title:
    Use of Prewetted Solid Materials for Roadway Anti-Icing: Synthesis Report
  • Corporate Creators:
    CTC & Associates LLC
  • Corporate Contributors:
    Minnesota. Dept. of Transportation. Clear Roads Pooled Fund
  • Subject/TRT Terms:
  • Publication/ Report Number:
    CR 17-S2
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Edition:
    Final Report
  • Corporate Publisher:
    Minnesota. Department of Transportation. Clear Roads Pooled Fund
  • Abstract:
    Anti-icing (also known as “pre-treating”) is the winter road maintenance practice of applying a liquid or solid material intended to depress the freezing point of water in order to prevent winter storm precipitate from bonding to roadway pavement. Anti-icing may be performed hours (or even days) before a winter storm event begins; it can also be performed after ice or snow begins to fall in order to keep pavements as clear of ice and snow as possible. Salt [sodium chloride] brine and other chloride liquids are widely used for anti-icing. Historically, materials other than liquids, such as dry and prewetted salt/solids, have also been used by winter maintenance agencies for anti-icing. This Clear Roads synthesis project sought to learn how and the extent to which agencies use prewetted salts/solids for anti-icing, the conditions under which they are used, their effectiveness, cost-effectiveness and agencies’ response to environmental concerns about anti-icing salt use. The investigation included a national survey of state department of transportation winter maintenance experts that gathered information about materials used for anti-icing, including reasons why materials were selected, how they were prepared and applied, and their effectiveness, with particular focus on the use of prewetted solids. The results of a literature search supplemented the survey findings.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:0c99c0460a502b55bd97d1df6d0598a1407111b00a2aaf17b6894f3db118d52b
  • Download URL:
  • File Type:
    Filetype[PDF - 1.34 MB ]
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