Calcium Chloride Home : Frequently Asked Questions : Dust Control Application Questions

What are the application guidelines for using calcium chloride to control dust on gravel surfaces?

Various forms of calcium chloride have been used to control dust on gravel roadways for over 80 years, improving safety and comfort for travelers while reducing maintenance costs for road managers.

The most desirable product for any given situation is a matter of personal choice. Solid calcium chloride products may be spread directly, or dissolved in water and spread as a liquid. In the U.S., the most common liquid concentration used for dust control is 38%. In Canada, the most common concentration is 35%. Liquid concentrations higher than 38% may be used; however, higher concentrations are more likely to crystallize as the solution cools. (For guidance on making solutions from solid calcium chloride products, refer to General Questions).

For additional information related to this topic, click on the link below:

Calcium Chloride in Dust Control Applications