Product Description
Our premium 1/2-inch fiberglass rebar (13mm GFRP rebar) offers a corrosion-resistant alternative to traditional steel reinforcement for concrete structures. Made from high-strength glass fiber reinforced polymer, this corrosion-resistant concrete reinforcement delivers strong performance in environments where moisture resistance and lightweight handling are priorities.
Whether you’re working on residential concrete slabs, salt-water adjacent structures, or specialized applications requiring non-conductive reinforcement materials, our 1/2″ fiberglass rebar provides the durability and reliability your concrete projects demand. The 1/2-inch diameter fiberglass rod provides optimal reinforcement for most standard concrete applications while being much lighter than steel for equal diameter.
Each non-metallic reinforcement rod is manufactured using advanced pultrusion technology, ensuring consistent quality and performance throughout its extended service life. Unlike conventional steel rebar, our composite fiberglass reinforcement bars are designed for long service life in corrosive environments with moisture, chlorides, chemicals, or salt exposure.
Choose our corrosion-resistant fiberglass rebar for concrete projects where long-term performance matters more than short-term savings. Though initially more expensive than steel alternatives, the reduced installation labor, maintenance costs, and extended service life make it the economical choice for forward-thinking builders and property owners seeking durable concrete reinforcement solutions.
Our 1/2-inch fiberglass rebar is manufactured by pultrusion for consistent quality. Related FRP solutions: pultruded FRP profiles, FRP rebar, pultrusion machines, and pultrusion dies.
Technical Specifications
| Specification | Details |
|---|---|
| Diameter | 1/2 inch (13mm) |
| Standard Lengths | 10ft and 20ft |
| Tensile Strength | 110 ksi (758 MPa) |
| Weight | 0.26 lbs/ft (0.39 kg/m) |
| Weight Comparison | approximately 75% lighter than steel by weight |
| Strength-to-Weight Ratio | 2.5× higher than steel |
| Thermal Expansion | 5.5 × 10^-6 in/in/°F |
| Corrosion Resistance | 100% (will not rust) |
| Electrical Conductivity | Non-conductive |
| Magnetic Properties | Non-magnetic |
| Chemical Resistance | Excellent against acids, alkalis, and salts |
| UV Resistance | Moderate (cover required) |
Applications and Use Cases
- Residential Concrete Construction
- Concrete patios, driveways, and decorative concrete flatwork
- Swimming pool decks and pool coping applications
- Basement foundation walls (for temperature and shrinkage control)
- Landscape retaining walls and outdoor concrete structures
- Commercial Concrete Projects
- Sidewalks and pedestrian concrete walkways
- Non-structural concrete floor slabs
- Parking garage structures (especially in coastal salt regions)
- Laboratory floors and clean rooms requiring non-metallic reinforcement
- Marine and Saltwater Environments
- Concrete seawalls and coastal breakwaters
- Boat ramps and waterfront concrete docks
- Underwater inspection chambers and marine structures
- Coastal bridge infrastructure and concrete pier elements
- Specialized Reinforcement Applications
- Hospital MRI rooms requiring non-magnetic reinforcement
- Electrical substations needing non-conductive reinforcement
- Water treatment plants with chemical exposure
- Precast concrete elements requiring lightweight reinforcement solutions
Product Advantages
| Feature | Fiberglass Rebar | Steel Rebar | Your Benefit |
|---|---|---|---|
| Weight | 0.26 lbs/ft | 1.04 lbs/ft | 75% reduction in handling effort |
| Corrosion | Highly corrosion-resistant | Begins rusting within 3-5 years in harsh conditions | No concrete spalling or structure failure |
| Lifespan | Long service life | 15-50 years (environment dependent) | Lower lifetime ownership cost |
| Installation Speed | Faster installation | Standard | Reduced labor costs |
| Electrical Properties | Non-conductive | Conductive | Safer for specialized applications |
| Environmental Impact | Lower carbon footprint | Standard | More sustainable building option |
Value Proposition
While fiberglass rebar typically costs more than steel upfront, the total lifecycle cost analysis reveals significant savings:
- Labor Savings: Reduction in installation time and crew size
- Transportation: Lower shipping costs due to lighter weight
- Maintenance: Reduced repair costs related to reinforcement corrosion
- Replacement: Extended structure life eliminates early replacement needs
- ROI Calculation: Break-even can occur over the project life
For a typical 1,000 sq ft residential project, choosing fiberglass over steel rebar results in potential lifetime savings when accounting for all factors.
Frequently Asked Questions
Q: Can 1/2-inch fiberglass rebar be bent on-site like steel rebar? A: No, fiberglass reinforcement bars cannot be field-bent without damaging the internal fiber structure. Pre-bent shapes must be ordered for corners and special configurations. We offer standard 90° and 45° bent fiberglass rebar with 2-week lead time for concrete corner reinforcement needs.
Q: Is 1/2-inch fiberglass rebar code-approved for structural concrete applications? A: Yes, with limitations. Most building codes now approve GFRP fiberglass rebar for specific applications, particularly non-structural concrete and horizontal reinforcement applications. Always consult local building codes and structural engineers for vertical load-bearing concrete reinforcement applications.
Q: How do I cut fiberglass rebar to length for my concrete project? A: Use a diamond blade or abrasive wheel designed for cutting composite materials. Always wear protective equipment, including gloves, eye protection, and a dust mask, as cutting fiberglass reinforcement produces glass fiber dust. We recommend wetting the cut area to minimize dust particles.
Q: How should fiberglass concrete reinforcement bars be stored at the jobsite? A: Store 1/2-inch fiberglass rebar horizontally on a flat surface, protected from direct sunlight and excessive moisture. While our GFRP reinforcement is UV-resistant, prolonged exposure to sunlight before concrete placement may affect long-term performance.
Q: How do I connect or tie fiberglass rebar in my concrete formwork? A: Use plastic zip ties or specialized non-metallic rebar clips rather than traditional wire ties. This prevents potential galvanic reactions and maintains the non-conductive properties of the fiberglass reinforcement system for concrete structures.
Q: Does 1/2-inch fiberglass rebar require special concrete cover requirements? A: While fiberglass rebar is corrosion-resistant, proper concrete cover is still important for structural bond and fire protection. Follow standard cover guidelines from your local building code, typically 3/4″ minimum for non-structural applications.
Q: Can I use 1/2-inch fiberglass rebar with conventional concrete mix designs? A: Yes, our fiberglass reinforcement products work with standard concrete mix designs without modification. There are no special concrete requirements for using GFRP reinforcement in your concrete projects.
Request a Quote for 1/2-Inch Fiberglass Rebar
Need 1/2-inch fiberglass rebar for your project? Contact us for a quote and we will confirm specifications, lead time, and pricing.









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