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How Effective is Rock Salt?

Pavement Temp(F)How Much One Pound of Salt MeltsMelting Time
3046.3 lbs of ice5 minutes
2514.4 lbs of ice10 minutes
208.6 lbs of ice20 minutes
156.3 lbs of ice1 hour
104.9 lbs of iceSalt becomes ineffective and will most likely blow away before it melts anything.
54.1 lbs of iceSalt becomes ineffective and will most likely blow away before it melts anything.
03.7 lbs of iceSalt becomes ineffective and will most likely blow away before it melts anything.
-63.2 lbs of iceSalt becomes ineffective and will most likely blow away before it melts anything.

Key Points:

  • Everthing is based off of pavement temperature. Air temperature and wind chill has no bearing on effectiveness of salt.-
  • As the temperatures decrease, you have to decide whether to apply more salt per area, which is not cost-effective or sometimes practical, or choose another form of de-icer.


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