Rock Salt is often used for managing ice. Because brine (a solution of water and salt) has a lower freezing point than pure water, putting salt or saltwater on ice that is near 0 °C (32 °F) will cause it to melt. (This effect is called freezing-point depression.) It is common for homeowners in cold climates to spread salt on their walkways and driveways after a snow storm to melt the ice. It is not necessary to use so much salt that the ice is completely melted; rather, a small amount of salt will weaken the ice so that it can be easily removed by other means. Stock up your Rock Salt in a 1 cubic yard bag. And you don't have to worry for that cold weather. One "MyGardenBag" always equals one cubic yard (3x3x3= 1 cubic yard) Save $20 on each additional bag purchased of any product, your cart updated automatically. Sample of materials available to see... Visit us at 12745 116 Ave , Surrey.