What is considered the most effective and economical deicer?

Salt, specifically sodium chloride, is considered the most effective and economical deicer because it has a proven track record in melting ice and snow on roads and sidewalks. When applied to icy surfaces, salt lowers the freezing point of water, which helps to break the bond between the ice and the pavement, making it easier to remove.

The cost-effectiveness of salt is due to its widespread availability and relatively low price compared to other deicing materials. Additionally, salt works rapidly, often within minutes of application, making it a preferred choice for immediate results in winter weather management.

While other options like calcium magnesium acetate and liquid calcium may provide benefits in terms of environmental impact and lower corrosion potential, they tend to be more expensive and less commonly used in large-scale applications. Sand, while useful for providing traction on icy surfaces, does not actually melt ice, making it less effective as a primary deicing agent.