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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
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/62079/dot_62079_DS1.pdf
  • File Type:
    Filetype[PDF - 1.34 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:0c99c0460a502b55bd97d1df6d0598a1407111b00a2aaf17b6894f3db118d52b
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