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Standard Method of Test for Mechanical Rocker Ice Melting
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2024-02-01
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[PDF-1.76 MB]
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Edition:Final Report [January 2020 – February 2024]
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Abstract:Winter road maintenance provides significant safety and economic benefits during adverse winter weather conditions. Chemicals are commonly used prior, during and after storms to provide better road conditions through a variety of mechanisms. The solid deicer most used by State departments of transportation (DOTs) is sodium chloride (NaCl), but the use of liquids has been increasing steadily for over 20 years because of their many benefits and advantages. Uses of liquid deicers include liquid-only application for anti-icing, frost prevention, treating thin ice, etc. and as a pre-wetting agent to reduce bounce/scatter of solid salt and speed initial melting/penetration. While NaCl is the most common chemical product used by state and local transportation agencies in solid and liquid (brine) form, there are many additives, alternatives and performance-enhancing products and blends available. As such, a standardized laboratory test that can realistically and robustly assess the performance of deicers is needed to allow DOTs to make data-driven procurement decisions. This research conducted a round robin test to examine the effect of rotational speed, test duration, tilt angle, operating laboratory on IMC of ten liquid deicers measured by the Mechanical Rocker Ice Melting Test.
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