Challenges in FRP Composite Repair and Maintenance
FRP composites are transforming infrastructure development with their combination of strength, durability, and ease of installation. In bridge construction, FRP is used for decks, girders, and reinforcement bars, offering a corrosion-resistant alternative to steel. This extends the lifespan of structures and reduces maintenance costs.
One notable application is in FRP rebar, which is increasingly replacing steel reinforcement in concrete exposed to harsh environments, such as coastal areas or chemical plants. The non-corrosive nature of FRP eliminates the risk of rust-induced cracking and spalling, improving structural integrity over decades.
In addition, Fiber Reinforced Polymer composites are used for retrofitting aging infrastructure. Wrapping concrete columns or steel beams with FRP sheets or laminates can significantly increase their load-bearing capacity and seismic resistance without adding substantial weight.
FRP is also a preferred choice in pedestrian bridges, utility poles, and seawalls, thanks to its ability to withstand extreme weather, UV exposure, and moisture. Its lightweight property reduces transportation and installation costs, especially in remote locations.
With infrastructure demands rising and budgets tightening, FRP composites offer a long-term, low-maintenance solution that meets both engineering and economic needs.
