Trucks will spread 900K tons of salt on Pennsylvania's state roads this winter

01.22.19 | Brandon Dickson

That figure is based on past years.

While the salt is great for motorist safety, it takes a toll on roads and sidewalks.

But, in a new study, Drexel University engineers have identified an odd weapon to neutralize some of the damaging effects of salt, bacteria.

When the researchers made concrete using a certain type of bacteria and nutrients, they found that the surface was better able to withstand the damage from a type of road salt called calcium chloride.