Recycled FRP in Architecture and Hydraulic Engineering: Real-World Applications


Have you ever wondered what happens to decommissioned FRP gratings or trench covers? Beyond being treated as waste, can they serve another purpose? As sustainability becomes a shared language in global engineering, the reuse and recycling of FRP (Fiberglass Reinforced Plastic) is emerging as a practical and valuable trend.
Today, we’d like to share real-world projects we’ve participated in, demonstrating how FRP—once destined for landfills—can find a second life in both architectural and civil infrastructure.
Practical Scenarios for FRP Recycling
With its high strength, corrosion resistance, and lightweight properties, FRP is not only ideal for new construction but also maintains its structural integrity when recycled and reused. These qualities make FRP recycling far more than just an eco-friendly slogan—it’s a functional engineering solution.
Case Study in Architecture: Turning Waste into Valuable Building Assets
In one of our projects in Taipei, a commercial building undergoing structural renovations faced the typical scenario of disposing of large amounts of removed FRP grating. Normally, these materials would be sent directly to landfill.
Instead, we proposed a crush-and-remold approach: the discarded gratings were pulverized and reprocessed into new modular panels, which were then reused for stair treads, equipment room platforms, and maintenance walkways.
Benefits included:
- Cost savings: No need to purchase all-new materials—significantly reduced the project budget.
- Waste reduction: Each remanufactured panel helped divert waste from landfill.
- No compromise on strength: Compression tests showed that recycled FRP panels performed nearly as well as new ones under normal use.
This project proves that FRP can be reintegrated into the building system through circular design. For developers pursuing ESG goals or green building certifications, this approach offers a highly viable strategy.
Case Study in Water Engineering: Old Materials, New Impact
Durability, stability, and corrosion resistance are top priorities in water infrastructure, making FRP trench covers a natural fit. But the next step in sustainable design is extending material lifespan through reuse.
In a drainage upgrade project in southern Taiwan, we applied the following circular process:
- Remove old FRP covers and assess their condition.
- Cut and trim reusable units to remove damaged areas.
- Apply resin reinforcement and integrate with a modular structure to create refurbished covers.
- Reinstall the newly finished covers in urban roads, paired with resin concrete frames for improved structural performance and drainage efficiency.
What made this case particularly noteworthy was that it not only supported sustainable reuse principles, but also reduced total project costs and shortened production and construction timelines—making it a highly practical engineering method.
Conclusion: The Future of FRP Lies Not Only in Innovation—But in Circularity
As these cases illustrate, FRP is more than a high-performance material—it’s a key enabler of sustainable engineering. Whether it’s recycled gratings or remanufactured trench covers, the potential of FRP reuse is being proven in real applications across architecture and infrastructure.
At All Leader, we’re more than just suppliers of FRP gratings and trench covers—we’re your partners in designing with life cycle thinking from the ground up. We help clients integrate recycling strategies into the planning and design phases to create truly sustainable solutions.
Looking to move your project closer to sustainability? Start with reusing FRP and discover how we can help you maximize material value—and environmental impact.
Learn more about our solutions: https://www.all-leader.com/contact