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Temperature-Dependent Brine Customization

7:09
14:29
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At 7:09 in

SIMA Snow and Ice Management Rates Charles Glossop

What happens here

Effective brine application depends critically on pavement temperature. While 23.3% brine is effective down to 15°F, simply increasing the salt concentration beyond this point would cause it to freeze. To combat colder temperatures (e.g., 4°F to -20°F), calcium chloride is added to the brine. A 20% calcium additive extends the effectiveness down to 4°F, and a 30% additive works down to -20°F. This custom blending ensures the brine remains active and prevents freezing, allowing for year-round effectiveness and optimal melting.

Goal: Adjust brine composition based on pavement temperature for maximum effectiveness.

Tools and materials

  • Brine — Base solution for de-icing
  • Calcium Chloride — Lowering the freezing point of brine in colder temperatures (below 15°F)