Not all pavements are equal when it comes to winter maintenance. Different pavements and pavement designs respond differently to winter maintenance strategies. A recent research project looked at the various performance aspects of open graded, ultra thin permeable friction course surfaces that have been used by transportation agencies for many years. While they have lots of advantages, in the wintertime they tend to freeze more rapidly, deicing and anti-icing chemicals drain off more readily, and they tend to retain snow and ice for longer periods of time. In this episode we’re going to look into winter maintenance operations on permeable friction courses with Michelle Akin formerly of Washington State University and Laura Fay from the Western Transportation Institute.
Link to the report “Understanding the chemical and mechanical performance of snow and ice control agents on porous or permeable pavements” https://clearroads.org/project/12-03/