Carbon FRP Rebar (CFRP)
CFRP rebar is a carbon fiber reinforced polymer bar that delivers tensile strength well beyond GFRP or steel reinforcement, built for high-performance, weight-sensitive concrete projects.
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Haikuo CFRP rebar reinforces concrete using continuous carbon fiber rovings set in a thermosetting resin matrix, yielding a non-corroding bar whose tensile strength exceeds that of conventional steel and standard GFRP rebar by a wide margin.
Since it never rusts, CFRP rebar does away with the concrete spalling that corroding steel reinforcement causes, which makes it particularly valuable for marine structures, bridge decks, and other high-performance concrete elements where both long-term durability and a smaller cross-section matter.
CFRP Rebar Features
CFRP rebar’s features give it an edge over conventional alternatives:
- Very High Tensile Strength: At a matching diameter, its tensile strength runs well above both steel and standard GFRP rebar.
- Zero Corrosion: Fully immune to chloride-induced corrosion, which eliminates rust-driven concrete spalling.
- Lightweight Handling: Considerably lighter than steel rebar of comparable strength, making it easier to handle and place on site.
- Non-Magnetic & Non-Conductive Option: Well suited to structures located near sensitive electronic or magnetic equipment.
- Excellent Fatigue Performance: Strong resistance to cyclic loading makes it a good fit for bridge decks and other dynamically loaded structures.
Why Choose Haikuo CFRP Rebar
Designers specify Haikuo CFRP rebar when they need the most reinforcement performance per unit of cross-section — especially in corrosive or high-load settings where steel, and even GFRP, come up short.
Performance Parameters
The table below lists key performance parameters of CFRP rebar:
| Parameter | Unit | Value |
| Tensile strength | MPa | 2000 |
| Modulus of elasticity | GPa | 140 |
| Elongation at break | % | 1.5 |
| Density | g/cm³ | 1.6 |
Specification Parameters
The table below lists key specification parameters of CFRP rebar:
| Parameter | Unit | Range |
| Diameter | mm | 6~20 |
| Length | m | 1~12 |
| Surface texture | – | Sand-coated, ribbed |
| Color | – | Black (natural carbon fiber) |
Where CFRP Rebar Is Deployed Worldwide
CFRP rebar goes into high-performance, corrosion-critical concrete reinforcement projects such as:
- Marine & Coastal Structures: Seawalls, piers, and coastal bridge decks that face chloride-laden conditions.
- Bridge & Infrastructure Decks: Fatigue-resistant reinforcement built for high loads on critical infrastructure.
- Precast & Prestressed Concrete: High-strength reinforcement suited to precast panels and prestressed concrete members.
- Instrumentation-Sensitive Structures: Reinforcement for locations near MRI suites, radar installations, or electromagnetic test facilities.
Precision Pultrusion & Quality Control
Every batch of CFRP rebar is checked for fiber volume fraction, tensile performance, and bond-surface consistency, produced on dedicated carbon fiber pultrusion tooling kept separate from our glass fiber rebar lines.
Technical Summary & Engineering Insights
Haikuo CFRP rebar is a continuous carbon fiber reinforcement bar offering substantially higher tensile strength than steel or GFRP rebar at a fraction of the weight, with complete immunity to corrosion. It is specified for marine, bridge, and precast concrete projects where maximum reinforcement performance and long-term durability outweigh the higher material cost of carbon fiber.
| Structural Property | Haikuo CFRP rebar | Steel Rebar | GFRP Rebar |
|---|---|---|---|
| Corrosion & Rust Immunity | 100% Resistant (No spalling risk) | Poor (Rusts, causes spalling) | 100% Resistant |
| Tensile Strength Profile | Very High | High | Good |
| Weight Efficiency Index | Ultra-Lightweight (~25% of steel) | Heavy | Light |
| Electrical/Magnetic Behavior | Conductive, non-magnetic | Conductive, magnetic | Non-conductive, non-magnetic |
| Typical Unit Cost | Higher (premium reinforcement) | Moderate | Lower |
Targeted Product FAQ
Q1: Why would a project choose CFRP rebar over standard GFRP rebar?
A1: CFRP rebar offers substantially higher tensile strength and stiffness than GFRP at the same diameter, allowing a reduced reinforcement cross-section in high-load or weight-sensitive designs.
Q2: Does CFRP rebar corrode like steel?
A2: No. Like our GFRP rebar range, CFRP rebar is fully immune to chloride-induced corrosion, eliminating the spalling risk associated with rusting steel reinforcement.
Q3: Can CFRP rebar be bent or shaped on site?
A3: No — like all FRP rebar, bends and anchorage details must be fabricated at the factory to the confirmed geometry before shipment.
Q4: What diameters are available?
A4: Standard diameters range from 6mm to 20mm; larger diameters can be reviewed on request.
Q5: Is CFRP rebar suitable for prestressed concrete?
A5: Yes, its high tensile strength and low relaxation make it well suited to prestressed and precast concrete elements — share your design load with our technical team for a suitability review.