GRP Rebar (Fiberglass Rebar, Style 02)

GRP Rebar — also known as fiberglass rebar, GFRP rebar, or composite rebar — is made of high-strength glass fibers and resin, offering corrosion resistance, light weight, high tensile strength, and easy installation compared with traditional steel rebar.

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Diameter Color Length
Winding method Surface Sandblasting Punch hole

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GRP Rebar: A New Generation of Reinforcement Material

GRP Rebar — also known as fiberglass rebar, GFRP rebar, or composite rebar — is a newer reinforcement material made from high-strength glass fibers and resin. It offers several advantages over traditional steel rebar, including corrosion resistance, light weight, high tensile strength, and easy installation, and it is used across applications such as bridges, tunnels, roads, buildings, water treatment plants, and coastal structures.

Product Specifications

Our GRP Rebar products meet the international standards ASTM D7957/D7957M-17 and ISO 10406-1:2008. Our main product specifications are as follows:

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

We can also customize products to your specific requirements.

Product Features

Our GRP Rebar products offer the following features:

Corrosion resistance: immune to chloride ions, alkali, acid, salt, and other corrosive agents, extending the service life of concrete structures and lowering maintenance costs.

Light weight: at about one-fourth the weight of steel rebar, it reduces transportation and installation costs and improves work efficiency.

High tensile strength: exceeding that of steel rebar, it enhances the load-bearing capacity and crack resistance of concrete structures.

Easy installation: cut, bent, and connected with simple tools and accessories, saving time and labor costs while improving construction quality.

Thermal insulation: its low thermal conductivity and thermal expansion coefficient reduce the thermal stress and deformation temperature changes can cause in concrete structures.

Product Applications

Our GRP Rebar products serve a wide range of applications, including:

Bridges: improves durability and safety in harsh environments such as coastal, humid, and cold regions.

Tunnels: prevents corrosion and deterioration caused by groundwater, chemicals, and gases.

Roads: increases strength and stability where traffic volume, load, and vibration are high.

Buildings: enhances seismic performance and fire resistance in earthquake-prone and urban areas.

Water treatment plants: resists corrosion and erosion from sewage, chlorine, and other substances.

Coastal structures: withstands impact and abrasion from waves, tides, sand, and salt.

Guangdong Haikuo Composite Materials Co.,Ltd. is a leading manufacturer and supplier of GRP Rebar in China, with more than 10 years of experience producing and exporting it worldwide. We offer high-quality products, competitive prices, fast delivery, and excellent customer service.

To learn more or place an order, contact us at +8618951988522 or helena@frphk.co — we look forward to hearing from you.

Technical Summary & Engineering Insights

Executive Summary: Haikuo GRP Rebar delivers the corrosion resistance, light weight, and high tensile strength of glass-fiber composite reinforcement, built as an easy-to-install, long-service-life alternative to traditional steel rebar.

Performance Factor	Haikuo GRP Rebar	Steel Rebar	Wood/Timber Support
Corrosion Resistance	Total immunity	Rusts over time	Rots
Installation Ease	Light, easy to handle and place	Heavy, harder to handle	Light but weak
Tensile Strength	High	Good	Low
Electrical Conductivity	None	Conductive	None
Long-Term Service Life	50+ years typical	Reduced by corrosion	Short

Targeted Product FAQ

Q1: Is GRP Rebar the same material as GFRP or FRP rebar?

A1: Yes — GRP (Glass Reinforced Plastic), GFRP, and FRP rebar all refer to the same class of glass-fiber/resin composite reinforcement; naming varies by region and industry convention, but the material and performance are equivalent.

Q2: What applications is GRP Rebar best suited for?

A2: Any concrete structure where corrosion resistance, non-conductivity, or reduced weight is valuable — marine structures, coastal buildings, tunnels, and general construction in corrosive environments.

Q3: Can GRP Rebar be cut and installed with standard construction tools?

A3: Straight lengths can be cut with standard abrasive or diamond blades on-site; bent shapes are produced at the factory to your drawing since FRP cannot be field-bent.

Q4: What’s the typical bond strength with concrete?

A4: Our rebar’s ribbed/sand-coated surface is designed to provide strong mechanical bond with concrete, comparable to deformed steel bar — technical data is available on request.

Q5: Do you provide samples before a full order?

A5: Yes, a limited number of free samples are available when stock is on hand — just cover the shipping cost and specify the diameter and length you’d like to test.