Gabion Walls Design
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GalFan ZGF 255 expected design life 50yrs to 150yrs
The estimated time to first maintenance for a hot-dip galvanized coating that experiences common atmospheric exposure can be seen below. Time to first maintenance is defined as the time to 5% rusting of the substrate steel. The time to first maintenance of hot-dip galvanized steel is directly proportional to the zinc coating thickness. Source American Galvanisers Association www.galvanizeit.org
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Your retaining wall supply experts.
What is GalFan?
GalFan is 95% zinc, 5% aluminium coated steel.
What lifespan to expect?
50yrs to 150yrs for 5% rust to show.
Acidic soils?
Use geotextile fabrics for separation.
Good drainage?
Improves walls stability and design life.
Want to know more?
Study on factors affecting gabion lifespan.
Special Environments?
Increased corrosion likelihood in NZ.
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