Measuring Dispersal and Tracking of Anti-Icing and Deicing Chemicals by Using In-Situ Spectral Data – Phase II

Abstract

The use and application of salt, sand and related mixtures and derivatives have proved to be highly effective for removing or controlling the development of ice on the roadway surface. Although ample research has indicated the way in which application method, application rate, and efficacy of mix contents can vary depending on temperature and surface conditions, little if any research has looked at the longevity and dispersal of anti-icing and deicing compounds after they have been applied to the roadway surface (i.e., how long it stays in place and where it goes post-application). This research extended a lab-based methodology developed in the UAF Hyperspectral Lab, in which spectroscopy was used to measure concentrations of anti-icing and deicing chemicals, into a field setting. Results showed both the promise of using imaging spectroscopy for winter maintenance and management, particularly for beet-brine solutions, and some limitations associated with environmental and roadway surface conditions.