Quote:
Originally Posted by G-CPTN
Do your local authority highway services use salt or sand to combat ice?
I realise that salt doesn't work at very low temperatures (sand is better), but it sounds as though your problems were due to refreezing of snowmelt (which would be close to zero Celsius).
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Well they use salt and other methods. But this type of ice is hard to melt with that method if the temperature is below zero on the road surface. Actually it does not have to be very cold in the air to be very cold on the road surface.