Snow-melting and de-icing products for sidewalks and streets are harmful to plants and trees in a number of ways. Here's one alternative.
Rock Salt Vs. Table Salt to Melt Ice
How To Avoid Winter Salt Damage to Trees, Shrubs & Lawns
RHS Rectangular Hollow Section, SHS Square Pipe
Impact of Winter Weather on Plants
Preventing Winter Salt Damage - FineGardening
How winter deicing chemicals affect plant health
How to Melt Snow and Ice Without Rock Salt
XYNYTH Manufacturing Corp., North American Ice melting Industry and Deicer
RHS Rectangular Hollow Section, SHS Square Pipe