Liquid deicers such as salt brine and brine blends can effectively clear snow and ice while using less salt than traditional granular applications. To fully utilize this strategy, though, agencies need detailed guidance and application rates for multiple liquids across a variety of weather and pavement conditions.
Drawing from field test results and practitioner recommendations, a recent Clear Roads project developed comprehensive application guidelines for liquid deicers that address a range of pavement temperatures, temperature trends, road surface conditions and materials—including guidance for using liquids at lower temperatures.
- Related research: Evaluation of Winter Maintenance with Salt Brine Applications in Wisconsin, Wisconsin DOT, December 2021. Study author Andrea Bill of University of Wisconsin–Madison discussed the project on a recent episode of AASHTO’s SICOP Talks Winter Ops podcast.