FRP Rebar (Fiberglass Reinforcing Bar, Style 01)

Also called GFRP Rebar or Composite Rebar, FRP Rebar is a spiral-wound rod of glass fiber and resin engineered to outperform steel in concrete reinforcement. It suits structural and construction work that calls for light weight, high strength, corrosion resistance, and non-conductivity.

Customized service:

Diameter Color Length
Winding method Surface Sandblasting Punch hole

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Why FRP Rebar Outperforms Steel: The Case for Glass Fiber Reinforced Plastic Rebar

Made by spiral-winding glass fiber and resin into a solid rod, FRP Rebar — also called GFRP Rebar (Glass Fiber Reinforced Plastic Rebar) or Composite Rebar — is a concrete reinforcement material built to outperform steel rebar. It suits structural and construction work that calls for light weight, high strength, corrosion resistance, and non-conductivity.

Key benefits of FRP Rebar:

Light weight: FRP Rebar’s specific gravity runs only one-fourth that of steel rebar, meaning it weighs just 25% as much as steel rebar of the same size. That trims the self-weight of concrete structures, lowers transport and installation costs and labor, and speeds up construction.

High strength: FRP Rebar’s tensile strength is twice that of steel rebar, so it withstands greater tension at the same diameter. This lowers the risk of cracking in concrete structures and increases their load-bearing capacity and safety.

Corrosion resistance: Unlike steel rebar, FRP Rebar is unaffected by water, chlorine, salt, acid, alkali, and other chemicals, letting it hold its performance and lifespan in harsh environments. This cuts maintenance and repair costs and extends the service life of structures.

Non-conductivity: FRP Rebar neither conducts electricity nor becomes magnetized the way steel rebar does, so it can be used in sensitive settings involving high voltage, high frequency, or electromagnetic interference. This avoids electric shock or signal interference and keeps concrete structures functional and stable.

Main parameters of FRP Rebar:

Diameter （mm）	6	8	10	12	14	16	18	20	22	25	28	30	32	34	36
Cross section（mm2）	28	50	73	103	134	180	248	278	355	478	590	671	740	867	977
Density (g/cm3)	2.2	2.2	2.2	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1
Weight (g/m)	51	98	150	210	275	388	485	570	700	970	1195	1350	1589	1788	2044
Ultimate Tensile Load (KN)	36	54	72	99	117	149	189	225	270	342	432	475	504	540	585
Ultimate Tensile Strength (Mpa)	1280	1080	980	870	764	752	744	716	695	675	702	637	626	595	585
Ultimate Shear Strength (Mpa)	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150	＞150
E-modulus (GPa)	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40	＞40

Interested in our FRP Rebar products? Contact us for more information and a quotation. Guangdong Haikuo Composite Materials Co.,Ltd. is a professional manufacturer and supplier of FRP Rebar across a wide range of specifications and performance grades.

Our contact number is +8618951988522, contact email is: helena@frphk.co.

We look forward to working with you and providing quality products and service.

Technical Summary & Engineering Insights

Executive Summary: Haikuo FRP Rebar is a spiral-wound glass fiber and resin reinforcement rod engineered as a lighter, corrosion-immune alternative to steel rebar for structural and marine concrete work. Its non-conductive, non-magnetic composition makes it the preferred choice wherever chloride exposure or electromagnetic neutrality rules out steel.

Performance Factor	Haikuo FRP Rebar	Steel Rebar	Wood/Timber Support
Corrosion in Chloride/Saltwater Exposure	Total immunity, no rust or spalling	Corrodes, causes concrete spalling	Rots in wet or buried conditions
Weight per Equivalent Strength	Up to 75% lighter than steel	Heavy, raises transport & labor cost	Light but structurally weak
Electrical / Magnetic Conductivity	Fully non-conductive, non-magnetic	Conductive, interferes with sensitive equipment	Non-conductive
Tensile Strength-to-Weight Ratio	Excellent, often exceeds steel	Good, but at much higher weight	Poor
Long-Term Maintenance Cost	Minimal, no coating needed	Ongoing coating/replacement cost	Frequent replacement

Targeted Product FAQ

Q1: Can FRP rebar fully replace steel rebar in load-bearing concrete structures?

A1: Yes, for most non-seismic structural and marine applications engineers now specify FRP rebar as a direct structural replacement, sized to the same design codes used for steel (with adjusted bar diameter/spacing for FRP’s different elastic modulus). We work with your engineer to confirm the right diameter and layout for your project.

Q2: Is FRP rebar safe to bend or cut on-site like steel?

A2: FRP rebar cannot be field-bent like steel — bent shapes (stirrups, hooks) must be pultruded to the final shape at the factory. Straight lengths can be cut on-site with standard diamond or abrasive blades; we recommend confirming your bent-shape requirements before ordering so we produce them correctly.

Q3: Does FRP rebar bond properly with concrete?

A3: Yes. Our rebar is manufactured with a sand-coated or ribbed surface finish specifically to maximize mechanical bond strength with concrete, matching or exceeding the bond performance of deformed steel bar.

Q4: What diameters and lengths are available?

A4: Standard diameters and custom lengths are available to match your structural drawings — see the Customized Service options above, or send us your specification and we’ll confirm availability and lead time.

Q5: Is FRP rebar suitable for both new construction and repair/retrofit work?

A5: Yes, it’s used in both — new marine and coastal structures where steel corrosion is a known risk, and repair/retrofit projects where non-conductive, lightweight reinforcement simplifies handling and installation.