User Manual

Revision A (Dated 05/01/13) 7
Water Freezing Prevention
In freezing weather conditions, allowing the water in TrafFix Water-Wall to freeze to a solid mass of
ice should not be allowed. If the temperature at the TrafFix Water-Wall site is expected to be at or
below the freezing point of water, it is recommended that an additive be used to prevent the water in
the TrafFix Water-Wall from freezing.
-Common additives used to prevent water freezing currently used in work zone devices
under the same category as the TrafFix Water-Wall.
SALT (Sodium Chloride)
20% mixture by weight
Reduces freezing down to 0° F [-18° C].
Corrosive to inadequately protected steel components (Galvanizing adequately prevents
corrosion)
Recommended - premix before filling
Prevent spilling since solution is harmful to vegetation, soils, and wildlife. Draining should be done
in an acceptable area.
CALCIUM CHLORIDE
35% mixture by weight
Reduces Freezing down to 20° F [ -6.6 °C ].
Corrosive to thin zinc plated components
Corrosive to inadequately protected steel components (Galvanizing adequately prevents
corrosion)
High tendency to stay on road surface resulting in slick road surface.
High level of heat created when mixing. It is recommended that pre-mixing is done before filling.
Prevent spilling since solution is harmful to vegetation, soils, and wildlife. Draining should be done
in an acceptable area.
ETHYLENE/PROPYLENE GLYCOL
50% mixture by volume
Reduces water freezing to 0° F [-18° C].
High tendency to stay on road surface resulting in slick road surface.
Prevent spilling since solution is harmful to vegetation, soils, and wildlife. Draining should be done
in an acceptable area.
LIQUID CMA (calcium magnesium acetate)
25% mixture by volume
Reduces water freezing to 0° F [-18° C].
Has a low environmental impact.
LIQUID POTASSIUM ACETATE
60% mixture by volume
Reduces water freezing to 20° F [-6.6° C]
Low corrosive characteristics and has a low environmental impact.