Best Practices for Road Weather Management Version 2.0
Title:
Friction Trends of Anti-icing Chemicals on Tined Concrete
Abstract:
This latest set of anti-icing chemical friction test was conducted on a tined concrete surface. Most of the chemicals tested, in their liquid state provided a friction equivalent to, or greater than, 0.5. Relative humidity levels between 25 and 40 percent caused most of the chemicals to transition through a minimum friction slurry state. During this transition a number of chemicals produced a friction significantly below 0.5. Some of the chemicals appeared to be absorbed by the porous concrete. Others appeared to forma a bond with the concrete allowing them to remain in a liquid state, even at extremely low relative humidity levels, and therefore provide a constant friction.
Source(s):
Forensic Dynamics
Date: 2001
Author:
Sdoutz, Leggett
Keywords:
Pavement friction
Humidity
Air temperature
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