Overcoming Issues Faced with Traditional FRP Anchors
Houston, TX, April 1, 2025 – Traditional FRP anchors have been used for years but leave structural engineers and building inspectors with one issue – how are they inspected? When FRP is installed, the initial layers are applied to the substrate, anchors are installed, and a final layer or layers are applied over the top of the splayed anchor to secure the application. This means there is no way to inspect the anchors, and after a seismic event, this is especially important to ensure the structural reliability of a building or bridge.
Fyfe proud to launch a new solution to the market which removes the requirement for an additional later of FRP leaving the anchor visible for inspection at any time. Duktil
FRP Anchor Plates were developed by Duktil FRP LLC’s Victor Reyes and are hybrid steel/FRP plate systems engineered to provide an alternate load delivery from externally bonded FRP into concrete.
The system bonds directly to the LOCTITE® Tyfo Composite systems using LOCTITE Tyfo S epoxy. It is then anchored into the concrete substrate using Hilti’s KBTZ2 wedge anchors or KH-EZ-C screw anchors. It was developed to improve the overall performance of FRP Systems when used in retrofitting structures and provides an increased performance beyond traditional FRP bonding and anchorage provided by conventional FRP anchors.
While strength is its primary objective, it also provides ductility given the deformation and slotting of its metallic components: The plates will deform before the anchor fails ensuring the FRP remains bonded to the concrete and provides for easy visually inspection not possible with standard FRP systems.
The system has been extensively tested to ensure its structural performance. To date, it has proven to be the most effective method to anchor externally applied FRP systems to concrete. Minimum design properties have been evaluated and now form part of ICC-E.S.R. 2103 report.
Head of Fyfe, Mark Brand said: “As the need to anchor FRP materials continues to increase to overcome the ‘debonding’ strain, the Duktil FRP Anchor Plate system provides a solution that can be readily implemented into FRP designs. The installation process is simple and saves time compared to using conventional FRP anchors. The field quality control procedures are simple, and the post-installation inspection is straightforward.
“The result is a game-changing anchor detail that improves FRP performance and reduces costs.”
Fyfe is a provider of structural strengthening solutions to a range of industries such as building rehabilitation & structural strengthening, bridges & transportation, pipelines, water & wastewater, waterfront & marine structures, silos, stacks & chimneys, and industrial facilities & power generation.
About Fyfe
Fyfe was founded in 1988 to strengthen failing bridge columns using aerospace materials. It is a pioneer in the fiber-reinforced polymer (FRP) structural strengthening industry. Today it is a world leader in designing and manufacturing Tyfo, a system of specialized carbon and glass fabrics, which we combine with polymers to strengthen a wide range of masonry, concrete, steel, and timber structures. The Tyfo FRP system is also being used to rehabilitate potable, and non-potable piping systems. www.FyfeCo.com
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