How does putting salt on frozen roads make the roads less icy?
Hi, Sulikjon!
The main purpose it to lower the freezing point of water, and we use salt for this.
I hope this helps;)
Icy sidewalks and roadways can lead to disasters. Wintertime slick surfaces can cause a variety of problems, from a simple slip to a major car accident. To prevent property damage, injury or death, it's important for surfaces to be de-iced. This is usually done by distributing sand, chemical de-icers or salt over the ice. Of these three, salt is the most common.
Hope this helps.