A private concrete boat ramp for the Port of Brisbane services various import and export ship activities, including fuel loading. The customer sought a solution to increase the durability and longevity of the concrete boat ramp; this was achieved by reducing the concrete’s permeability, increasing strength and increasing abrasion resistance by adding EdenCrete to the concrete mix.
In May 2021, the Port of Brisbane commenced a trial using EdenCrete added to the concrete mix. In a 50MPa, 15% flyash concrete mix the addition of EdenCrete resulted in an increase of 20MPa in overall strength and an ~35% reduction in permeability, as tested to Nordtest Method NT Build 443 1995-ll - Determination of Chloride Ion Diffusion Coefficient.
The successful trial results led to the project specification for a Port of Brisbane boat ramp. The project required 16 chevron grooved precast jetty planks, each approx. 2.5m3 . The specified concrete mix for this project was 50MPa with 30% flyash and GP cement reduced by ~30kg/m3 . Casting commenced in August 2022, with the boat ramp completed and installed in September 2022.
Following the results from the trial the specified concrete mix for this project was 50MPa with 30% flyash to reduce GP cement use by ~30kg/m3. With the addition of 5L/m3 of EdenCrete, the concrete exceeded the design strength of 50MPa.
