As global infrastructure demands grow, engineers increasingly face the challenge of concrete reinforcement corrosion, particularly in aggressive environments such as marine structures, chemical plants, and tunnels. SupAnchor, a recognized leader in geotechnical reinforcement solutions, has addressed this challenge with the launch of its SupFRP® GFRP (Glass Fiber Reinforced Polymer) Reinforcement Rebar. This advanced product combines high tensile strength with permanent corrosion resistance, offering a durable alternative to traditional steel rebar. With a track record of innovation in self drilling anchor systems and hollow bar anchors, SupAnchor is now extending its expertise to fiber-reinforced polymer technology, ensuring safer, longer-lasting concrete structures worldwide.
The SupFRP GFRP rebar is manufactured from high-quality corrosion-resistant resin and fiberglass materials, making it immune to chlorides, alkalis, and acidic environments that cause steel deterioration. This inherent corrosion resistance eliminates the need for thick concrete cover and costly protective coatings, significantly reducing maintenance expenses over the structure's lifespan. Moreover, the rebar exhibits excellent bonding with concrete, thanks to a waved thread structure that enhances mechanical interlock. Unlike steel, GFRP rebar is non-conductive and non-magnetic, making it ideal for applications near sensitive electronic equipment, in MRI facilities, or where stray currents are a concern. Its lightweight nature—approximately one-quarter the weight of equivalent steel bars—facilitates easy handling and cutting on site, leading to faster installation and reduced labor costs. As a manufacturer of ground anchor bolt factory and geotechnical reinforcement system, SupAnchor ensures each rebar meets stringent quality standards for consistent performance.
The SupFRP GFRP Reinforcement Rebar is available in a wide range of diameters, from 8 mm to 40 mm, with customized shapes produced in the factory to suit specific design requirements. The table below summarizes the technical data for representative bar sizes. All rebars feature a waved thread structure that increases the nominal outside diameter, providing enhanced bond strength with concrete. The guaranteed tensile load ranges from 50.3 kN for the smallest size to over 1000 kN for the largest, with tensile strengths of 1000 MPa for diameters up to 25 mm and gradually reducing to 800 MPa for the 40 mm bar to optimize material efficiency. The tensile modulus of elasticity remains constant at 50 GPa, ensuring predictable deformation behavior. An ultimate strain of 2% signifies a ductile failure mode that provides visual warning before rupture, a crucial safety feature in structural design. The low weight per meter—starting at just 0.125 kg/m—makes transportation and positioning noticeably easier than conventional steel rebar.
| Designation | Outside Diameter (mm) | Guaranteed Tensile Load (kN) | Tensile Strength (MPa) | Weight (kg/m) |
|---|---|---|---|---|
| ReB-10 | 11.5 | 79 | 1000 | 0.20 |
| ReB-16 | 18 | 201 | 1000 | 0.50 |
| ReB-25 | 28 | 491 | 1000 | 1.20 |
| ReB-32 | 36 | 720 | 900 | 2.00 |
| ReB-40 | 45 | 1006 | 800 | 3.10 |
Note: All bars have a waved thread structure, E-modulus of 50 GPa, and ultimate strain of 2%.
The SupFRP GFRP rebar is engineered for a broad spectrum of construction environments where conventional steel reinforcement falls short. In soft-eye excavation for tunneling, its non-conductive nature prevents electrolytic corrosion and its easy cutting allows precise shaping for temporary works. Bridge decks and sea walls benefit from exceptional chloride resistance, eliminating the spalling and cracking caused by steel rust. For port aprons and marine structures, the rebar withstands constant saltwater exposure without degradation. Precast elements and foundations gain from the rebar's lightweight nature, reducing transportation costs and crane loads. Industrial plants with aggressive chemical atmospheres see extended service life. As a comprehensive geotechnical reinforcement system, SupAnchor also offers complementary products such as self drilling anchor bolts and hollow bar anchors for soil nailing and rock bolting, making it a single-source provider for complex projects requiring both deep foundation support and corrosion-free concrete reinforcement. The drill-and-grout bolt technique, often employed in slope stabilization, can be paired with GFRP reinforced concrete for surface protection, ensuring complete geotechnical safety.
The introduction of high-performance GFRP rebars aligns with the global push for sustainable and resilient infrastructure. By drastically reducing maintenance cycles, these rebars lower the whole-life carbon footprint of structures. Their non-magnetic property opens new possibilities in electromagnetically sensitive areas, such as hospital MRI suites and laboratory foundations. Engineers can reliably design with the material's consistent 50 GPa modulus and predictable strain behavior, integrating it seamlessly into existing design codes adapted for FRP reinforcement. The availability of factory-produced customized shapes, including bent bars and curved profiles, reduces on-site fabrication and ensures dimensional accuracy. Moreover, the cost-effectiveness of GFRP rebar, combined with its ease of handling and cutting, makes it an economically viable solution for both small-scale projects and mega-infrastructure endeavors. As a leading soil nail system manufacturer, SupAnchor brings decades of geotechnical expertise to this product, ensuring that technical support and application engineering are readily available.
SupAnchor has built a reputation as a professional and innovative force in construction materials. With ISO-certified manufacturing facilities and a global project portfolio spanning over 50 countries, the company continuously invests in research and development to advance anchoring and reinforcement technologies. The SupFRP GFRP Rebar is the latest result of this commitment, developed through rigorous testing and collaboration with leading engineering firms. Every rebar is produced under strict quality control, guaranteeing the specified tensile loads and dimensional tolerances. The factory's ability to customize shapes and diameters allows for rapid response to project-specific demands, a hallmark of the company's collaborative approach. By integrating GFRP rebar with its existing range of self drilling anchor system components and drill-and-grout bolts, SupAnchor provides holistic solutions that simplify procurement and ensure compatibility on site. This synergy reinforces the brand's message of professionalism, collaboration, and innovation, empowering contractors and engineers to build safer, longer-lasting structures in the most challenging environments worldwide.
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