The North West region of Western Australia is acknowledged as having one of the highest tidal movements in Australia with a maximum tidal range in excess of 7m. This abnormally high tidal range, coupled with year round high temperatures and humidity, presents the challenge of having a rapidly corroding splash zone region in excess of 3m.
A wharf asset in this region had significant localised corrosion with deep pitting on the surface on many piles, requiring structural strengthening and protection. The presence of unique doublers on each piling, required a customised solution preventing further corrosion.
The project had the following specifications:
Structure | Steel circular tubes with doublers |
Application Type | FRP remediation |
Operating Environment | Splash Zone |
Quantity | Multiple piles |
Dimensions | 560mm - 620mm |
Compressive Strength | 550kPa |
Design Temperature | 65oC |
Design Life | 10 years |
Weight of Repair | 20kg per half shell |
Corrosion Type | External pitting in excess of 50% section loss |