Composites elements: carbon fibre reinforced concrete girders for structural support, with glass fibre rebar used in the concrete deck.
Why composites: carbon fibre increased tensile strength in the girders, reducing the weight and load on support beams. Glass fibre in the deck achieved the same strength as steel reinforcement while being lighter and offering a longer lifespan due to corrosion resistance in harsh environments.
The integration of carbon and glass fibre reinforcement in this "no steel design" significantly improved weight efficiency compared to traditional materials.
Cost
Although the initial cost of composite rebar was higher, the weight reduction and nearly maintenance-free lifespan made composites a cost-effective choice for this coastal application.
Strength
Carbon fibre offers superior tensile strength compared to steel, fully complying with traditional building regulations.
Durability
The use of composite materials ensures a significantly longer lifespan than conventional materials.
Maintenance
In highly corrosive coastal environments, composite reinforcements eliminate steel corrosion, which typically damages surrounding concrete and leads to expensive repairs.
LCA/Environmental Impact
A longer, maintenance-free lifespan reduces overall costs, extends functionality, and contributes to a reduced CO₂ footprint.