Corrosion-Resistant FRP Products to Play Key Role in Rebuilding US Infrastructure

15 May 2018

Corrosion-Resistant FRP Products to Play Key Role in Rebuilding US Infrastructure

Composite Advantage has issued a statement highlighting the potential role of composite products in US infrastructure applications.

No matter where you look, the Department of Transportation (DOT) is scrambling to fix what is broken, the company states. According to the American Automobile Association (AAA), pothole damages alone costs US motorists a total of $3 billion per year. But there is one product that isn’t on crews’ maintenance ‘to-do’ lists. Corrosion-resistant, maintenance-free fibre reinforced polymer (FRP) composites offer an attractive choice for infrastructure applications ranging from bridges and bridge decks to repair and retrofit and internal reinforcement for concrete. 

In a hearing this month before the US House of Representatives Subcommittee on Research and Technology of the Committee on Science, Space and Technology, Representative Daniel Lipinski (D-IL) said, “As we make plans to shore up our infrastructure and build for the future, we must take advantage of all the tools at our disposal. This includes using innovative technologies and emerging materials where they offer the best value for a project. Materials such as fibre reinforced polymer composites, or advanced composites … may play a key role in how the nation addresses its challenges under constrained resources.”

Composite Advantage reports that its FiberSPAN FRP bridges and bridge decks have found a strong market niche due to the mechanical characteristics of its products.

“Our bridges and bridge deck panels don’t corrode,” says Composite Advantage's President, Scott Reeve. “That translates to zero maintenance and gives our products a life cycle of 100 years. The cost saving that results from eliminating upkeep has also driven field adoption of our FiberSPAN pedestrian bridges, bridge decks and trail bridge systems.”

According to Reeve, FRP composites are an engineered material. Polymers support and protect high-strength fibre reinforcements from corrosion and the effects of environmental factors such as salt water, de-icing chemicals, oils, acids and UV radiation. One of the oldest FRP decks was installed in 1996 on a bicycle path in Ohio where it has been exposed to snow, ice and cold temperatures for more than a decade. Regular inspections have found the deck surface damage free.

Composite Advantage also uses coatings and non-slip overlays that are highly resistant to UV rays. In 2015, the FRP supplier added Matacryl, a surface product especially suited for areas that experience heavy use. The system combines quartz aggregate in a methyl methacrylate polymer for greater durability, reduced roughness and higher elongation than conventional non-slip overlays.

“Bridge owners and design engineers are starting to at the look term benefits of sustainable materials that can minimise the life cycle costs of structures,” says Reeve. “FRP composites provide that.”

Photo provided by Composite Advantage

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