Effect of surface roughness and chemistry on ice bonding to asphalt aggregates

摘要

In winter maintenance, it is common to use chemicals to weaken the bonding between snow and a road. However, this practice damages the road pavement and has a negative impact on the environment. Moreover, aggregates are the main component of asphalt mixtures and, due to the wear of traffic, typically make up the surface of roads. For this reason, with the aim of reducing the need for chemicals, it is interesting to study how stone aggregates interact with ice and snow and try to evaluate if it is possible to find a type of stone which forms weak bonds with ice and snow.