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Testing Methodology for Performance Characteristics and Friction Coefficient of Deicing and Anti-icing Chemicals

Started: March, 2010 Ended: August, 2010 Project ID #4W3026 Status: Completed

Results & Findings

The existing laboratory tests are limited in their ability to predict field performance and friction coefficient of deicers for several reasons. Traffic, humidity, pavement temperature and condition, presence of solar or thermal radiation, and active precipitation and wind are all factors that are often overlooked in lab tests. Most importantly, previous studies are not typically correlated to results from field tests. Test methods identified during the extensive literature search will provide a more complete picture of previous research. Field tests will also be reviewed to determine additional field parameters that may play a role in deicer performance and friction coefficient.  A thorough analysis of the literature is the first step to designing a single or suite of laboratory tests that will predict the actual field performance of deicers in a variety of meteorological and pavement conditions. This project will provide information on laboratory and field test methods that quantify deicer performance and the friction coefficient. The provided information will be foundation for Phases II and III of this research project in which laboratory and field methods that quantify deicer performance and friction coefficients will be selected, developed if necessary and tested.  Laboratory results will then be correlated with results from the field.

Objective

The purpose of this project is to conduct a thorough analysis of test methods and available literature and make recommendations to design a single or suite of laboratory tests that will predict the actual field performance of deicers in a variety of meteorological and pavement conditions.

Abstract

New laboratory tests, tools or methods are needed to evaluate the performance and friction coefficient of deicing chemicals in conditions that replicate the actual roadway. Laboratory tests have been developed to measure eutectic curves, ice melting capacity, ice penetration, ice undercutting, environmental effects, corrosion and other chemical characteristics of deicing chemicals and blends, but none have been developed that effectively and consistently replicate the real world. Decision makers need better information about the influence of traffic, meteorological parameters, pavement temperature, pavement type and condition, the physical and chemical properties of deicers, and application rates on the performance and friction coefficient of deicing chemicals.

Contacts

Files & Documents

Sponsors & Partners

  • Wisconsin Department of Transportation (WisDOT) Sponsor
  • Clear Roads Winter Highway Operation Pooled Fund Partner

Part of: Winter Maintenance and Effects

Project Tagged In: Deicer performance, lab and field testing, friction testing

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