Here is a bit of info for our city. It's generally too cold for salt to be effective here. Trust me, the 'sanding chip mixture'
will keep you off the road with a nice car...
Salt management plan FAQ
Although there is ongoing research into the use of alternative materials for winter maintenance, road salts continue to be the most cost-effective de-icers.
The City believes in using the right amount of salt or sanding product in the right place and at the right time.
•The use of sand or salt is dependent on road surface temperatures and weather conditions.
•When road surface temperatures are between 0 and -10 degrees Celsius, salt is used to melt accumulated snow and ice.
•For road surface temperatures below -5 degrees Celsius, a sanding chip mixture (3% salt, 97% fine gravel) is used.
All sanding trucks are equipped with automatic controls that spread a pre-determined amount of material depending on road conditions. Under certain conditions salt or calcium chloride brine may be applied to roads or bridges just before a snowfall is expected. This treatment prevents snow and ice from adhering to the road or bridge surface, reducing the amount of salt or sanding chips needed during the snowfall.
1. What are road salts?
Road salts include sodium chloride (NaCl), calcium chloride (CaCl2), potassium chloride (KCl) and magnesium chloride (MgCl2). The City of Calgary only uses sodium chloride and calcium chloride. Roads salts used for snow and ice control may be solid or liquid brines.
5. How much road salt does The City of Calgary use?
The City applies approximately 30,000 to 40,000 tonnes of road salts annually in order to keep Calgary on the move in difficult winter driving conditions.