Product Description
6mm FRP rebar (also called 6 mm GFRP rebar) is a glass fiber reinforced polymer bar used as concrete reinforcement in corrosive environments. Manufactured by pultrusion with continuous E-glass fibers in a thermoset resin, the 6 mm nominal diameter offers a minimum tensile strength of 900 MPa and is non-conductive and non-magnetic.
Technical Specifications
| Property | Specification | Notes |
|---|---|---|
| Nominal Diameter | 6 mm (+/-0.1 mm) | Same nominal size as steel equivalent |
| Material | E-Glass Fiber Reinforced Polymer (GFRP) | Vinyl ester or polyester resin available |
| Tensile Strength | >=900 MPa (130,000 psi) | Minimum value |
| Elastic Modulus | 55 GPa (8,000,000 psi) | Typical value |
| Linear Weight | ~0.06-0.08 kg/m | Approximately 75% lighter than steel of equal diameter, based on typical densities |
| Available Lengths | 1m, 2m, 3m, 100m coils, and custom-cut sizes | Cut-to-length service available |
| Surface Treatment | Sand-coated or spiral-wound | Selected for concrete bonding |
| Temperature Resistance | -60 degrees C to +80 degrees C | Verify for high-temperature applications |
| Water Absorption | <0.25% after 24-hour immersion | Typical value |
| Fiber Content | >70% by weight | Typical value |
Applications
- Coastal Construction: Seawalls, breakwaters, and marine structures
- Highway Infrastructure: Bridge decks and barriers exposed to de-icing salts
- Thin Concrete Elements: Precast panels and architectural features
- Masonry Wall Reinforcement: Crack control in brick, block, and stone walls
- Chemical Processing Facilities: Concrete exposed to acids, alkalis, and chlorides
- Swimming Pool Construction: Pool shells and decks
- Healthcare Facilities: MRI rooms requiring non-magnetic reinforcement
- Concrete Repair Projects: Retrofitting deteriorated structures
- Underground Utility Vaults: Electrical enclosures and transformer pads
Performance Comparison with 6 mm Steel Rebar
The values below are typical and should be verified against project specifications.
| Performance Metric | 6 mm GFRP Rebar | 6 mm Steel Rebar (Grade 60 typical) |
|---|---|---|
| Linear Weight | ~0.06-0.08 kg/m | ~0.222 kg/m |
| Tensile Strength | >=900 MPa | ~500 MPa |
| Corrosion Resistance | Resists chlorides and many chemicals | Requires protective coatings in aggressive environments |
| Electrical Resistance | Insulating | Conductive |
Key Benefits
- Corrosion Resistance: Resists rust, chlorides, and many industrial chemicals when matched to the exposure
- Lightweight: Low dead load can reduce transportation and handling costs
- Easy Field Fabrication: Can be cut with standard diamond-blade saws or abrasive wheels
- Electrical and Thermal Insulation: Non-conductive; suitable for electrical isolation applications
- Long-Term Value: Lower corrosion-related maintenance in suitable applications
- Chemical Resistance: Vinyl ester resins resist a wide pH range; confirm compatibility with your exposure
Why Choose Our 6 mm GFRP Rebar
Our 6 mm GFRP rebar is manufactured by pultrusion with continuous E-glass fiber and resin systems selected for construction applications. Each production batch is tested for tensile strength, fiber content, and dimensions. Technical documentation is available on request.
Frequently Asked Questions
What makes 6 mm GFRP rebar better than epoxy-coated steel for corrosion protection?
GFRP rebar is non-metallic and does not rely on a surface coating. When the resin system is matched to the exposure, it can provide long-term corrosion resistance even at cut or drilled ends. Project-specific performance should be confirmed with test data.
How do I calculate the equivalent strength when replacing 6 mm steel with 6 mm GFRP rebar?
6 mm GFRP rebar has higher tensile strength (900 MPa minimum) than Grade 60 steel (~500 MPa), but its modulus of elasticity is lower (55 GPa vs 200 GPa). Design must account for stiffness, crack widths, and bond. Our technical team can provide design assistance.
Can 6 mm FRP rebar be used in post-tensioning applications?
Our standard 6 mm FRP rebar is not recommended for post-tensioning. We can discuss specialized FRP tendons designed for post-tensioning on request.
What cutting tools work best with 6 mm GFRP rebar?
Diamond-blade wet saws or abrasive cutting wheels are effective. Wear appropriate PPE, including eye protection and dust masks, because glass fibers can irritate skin. FRP rebar does not produce sparks during cutting.
Does 6 mm FRP rebar meet international standards?
It is manufactured and tested in accordance with ACI 440.1R-15, ASTM D7957, and CSA S807-19. Code approval for a specific project is the responsibility of the design engineer.
What is the UV resistance of 6 mm GFRP rebar during construction delays?
GFRP rebar has short-term UV resistance, but extended exposure to direct sunlight before concrete placement should be minimized. Cover exposed bars with opaque tarps or place concrete within 30 days of installation.
Related Products and Capabilities
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