What effect does a common chemical deicer have on concrete surfaces? It is widely known that deicers containing ammonium nitrate and/or ammonium sulfate will chemically attack concrete. However, chemical deicers such as sodium chloride (rock salt), calcium chloride, urea, potassium chloride, and their combinations do not chemically attack concrete.
When choosing a deicer, there are a number of things to consider, including cost, long term effects, and effectiveness. It’s important to know what your deicing agent is composed of, and to keep in mind that the cheapest isn’t always the most effective. What you choose will vary depending on what type of area you are applying your agent to, the predicted drop in temperature, and maybe your own personal preference.