06/10/2026
Concrete piles rarely fail from the outside. They fail from the steel inside.
Salt from spray and tide works through the concrete until it reaches the reinforcement. The rebar rusts, swells and cracks the concrete off. That is spalling, and in the Caribbean it starts in the splash zone, where piles are wet, dry and baking in the sun every day.
A survey of a 24-year-old tropical concrete jetty found piles already corroding.
Greenheart has no rebar, so there is nothing inside to rust. No treatment, no cover depth, just dense timber doing the work.
Specifying concrete piles for a waterfront job? Message us the exposure and design life and we will size the Greenheart option.