Product Description
8mm glass fiber reinforced polymer (FRP) rebar is a corrosion-resistant concrete reinforcement for aggressive service environments. It is manufactured by pultrusion with continuous E-glass fibers in a thermoset resin matrix. The 8 mm nominal diameter offers a tensile strength range of 800-1100 MPa and is substantially lighter than steel of equal diameter. It is suitable for coastal infrastructure, chemical facilities, water treatment plants, bridge decks, and other applications where non-corrosive reinforcement is required.
Technical Specifications
| Property | 8mm FRP Rebar | Notes |
|---|---|---|
| Diameter | 8 mm (nominal) | Same nominal size as steel equivalent |
| Weight | 0.08-0.11 kg/m | Approximately 70-80% lighter than steel of equal diameter, based on typical densities |
| Tensile Strength | 800-1100 MPa | Higher tensile strength than Grade 500 steel on an equal-diameter basis |
| Density | 1.7-1.9 g/cm3 | Lower density than steel (7.85 g/cm3) |
| Standard Length | 12 meters | Custom lengths and 100 m coils available |
| Corrosion Resistance | Resists chlorides and many industrial chemicals | Performance depends on resin system and exposure |
| Electrical Conductivity | Non-conductive | Suitable for applications requiring electrical isolation |
| Concrete Cover | As specified by project engineer | May allow reduced cover in some designs |
| Service Life | Depends on exposure and resin system | Engineering assessment recommended |
Applications
- Marine and Coastal Structures: Seawalls, piers, jetties, and floating docks exposed to saltwater
- Chemical Processing Facilities: Concrete exposed to acids, alkalis, and corrosive substances
- Water Treatment Plants: Structures subject to moisture and chemicals
- Bridge Decks and Highway Infrastructure: Road salt exposure
- MRI Rooms and Medical Facilities: Non-magnetic reinforcement near sensitive equipment
- Precast Concrete Elements: Lightweight reinforcement for prefabricated components
- Swimming Pools and Water Features: Reduces rust staining risk
Cost and Lifecycle Considerations
| Cost Factor | Consideration |
|---|---|
| Installation Labor | Lighter weight can reduce handling time compared with steel |
| Transportation | Lower per-meter weight may reduce freight costs |
| Maintenance | Generally lower corrosion-related maintenance in aggressive environments |
| Service Life | Depends on exposure conditions, resin system, and design |
| Total Lifecycle Cost | Project-specific; should be evaluated by the engineer |
Key Benefits
- Lightweight Design: At about 20-25% of the weight of steel for equal diameter, 8 mm FRP rebar can reduce structural dead load and handling effort
- Corrosion Resistance: Resists rust, chlorides, and many chemicals when matched to the exposure
- Non-Conductive: Electrically isolating properties can reduce electrical hazards in specific applications
- Design Flexibility: Available in custom lengths and configurations
- Reduced Concrete Requirements: Some designs allow reduced concrete cover; confirm with project specifications
Frequently Asked Questions
How is 8mm FRP rebar cut and installed?
FRP rebar can be cut with standard diamond-blade saws or grinders. Installation follows the same tying methods as steel rebar, using binding wire or plastic ties. Follow the project engineer’s guidance for handling and placement.
Will 8mm composite rebar handle the same loads as steel?
8mm FRP rebar has higher tensile strength than Grade 500 steel of equal diameter, but its modulus of elasticity is lower. Structural design must account for these differences to achieve the required performance.
Is special training needed to work with non-metallic rebar?
No specialized training is required. Crews familiar with steel rebar can adapt to FRP rebar using the installation guidelines we provide.
How does temperature affect glass fiber reinforced rebar performance?
FRP rebar maintains properties across a wide temperature range (-40 degrees C to +80 degrees C typical). For applications above 80 degrees C, consult our technical team.
Can 8mm GFRP rebar be used in all concrete applications?
It is suitable for many applications. Extremely high-temperature environments or cases requiring high stiffness may require alternative solutions. Our technical team can provide application-specific guidance.
What standards does your composite reinforcement meet?
Our 8mm FRP rebar is manufactured and tested in accordance with ACI 440.1R, ASTM D7957, ISO 10406-1, and IS 18256/18255. Project-specific code approval is the responsibility of the design engineer.
Quality Commitment
Each production batch is tested for tensile strength, fiber content, and dimensional accuracy. Material traceability and test documentation are available on request.
Related Products and Capabilities
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