The Effect of Magnesium Chloride as an Anti-Icing Agent on Tire/Road Friction Coefficient

This article reports on the findings of tests designed to measure the effectiveness of magnesium chloride (MgCL₂) as an anti-icing agent on tire/road friction coefficient. Skid tests under various conditions are conducted using a 1996 Chevrolet Caprice as the test vehicle. The authors aim is to determine if an overall decrease in road surface coefficient of friction occurs after the application of MgCL₂ as an anti-icing measure and, if so, to what extent such a decrease in friction performance can be expected to last. Among the authors' findings: 1) the application of MgCL₂ to a dry road surface in anticipation of an impending storm results in the reduction of overall friction coefficient by 18-21%; 2) if MgCL₂ is not applied to a road surface and hazardous climatic conditions occur, excessively low friction values are observed; and 3) within 15-20 minutes of MgCL₂ application, a slight increase in coefficient of friction occurs and after 15-20 minutes, friction appears to decrease.

  • Availability:
  • Authors:
    • Leggett, Timothy S
    • Brewer, Eric
  • Publication Date: 2019-1


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01712866
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 10 2019 5:09PM