Innovation in marine civil engineering using foam-free concrete pontoon floats

Overview

This technical session will explore recent developments in marine civil engineering, focusing on the move towards foam-free floating concrete pontoon systems. It will outline the limitations of traditional floats that use concrete-encapsulated expanded polystyrene (EPS), including durability, maintenance challenges, and potential environmental impacts in marine environments.

The session will introduce alternative approaches that eliminate EPS, using low-density waterproof concrete to provide buoyancy within composite concrete structures. Attendees will gain an understanding of how these systems are engineered and how they compare with conventional solutions in terms of structural performance, service life, and sustainability, including reduced plastic content and improved end-of-life recyclability.

A real-world example will be presented through the application of ScaffFloat’s Reef Float™, demonstrating how foam-free concrete floats can be deployed in practice. This will include insights from installation within Falmouth Harbour, highlighting practical challenges, installation methods, and in-service performance.

The session will also examine installation methodologies that enable float replacement with minimal disruption, as well as broader considerations for maintenance and asset management of marine infrastructure.

This event will be of interest to civil and structural engineers, designers, and asset managers involved in marine and coastal infrastructure, offering a balanced perspective on emerging materials and construction techniques for more resilient and environmentally responsible floating systems.

Programme