Fiberglass Rebar

GFRP rebar
  • GFRP rebar
  • GFRP rebar
  • GFRP rebar

GFRP rebar

GFRP rebar is a novel product that combines the advantages of fiber-reinforced plastic (FRP) and concrete to create a strong and durable structural eleme

Customized service:

Diameter Color Length
Winding method Surface Sandblasting Punch hole

GFRP rebar is a novel product that combines the advantages of fiber-reinforced plastic (FRP) and concrete to create a strong and durable structural element. FRP is a composite material that consists of a polymer matrix reinforced with fibers, such as glass, carbon, or polyester. FRP has high strength-to-weight ratio, corrosion resistance, and design flexibility. Concrete is a widely used construction material that has high compressive strength, fire resistance, and low cost. By combining FRP and concrete, Frp Spiral Column can achieve enhanced performance in terms of load-bearing capacity, deformation, and durability. 

Gfrp rebar machine


Product Features

GFRP raber consists of an external FRP tube that is filled with concrete and internally reinforced with FRP spiral bars. The FRP tube provides confinement to the concrete core, increasing its strength and ductility. The FRP spiral bars provide additional reinforcement to the concrete, preventing strain-softening behavior and improving the stiffness and energy absorption of the column.

GFRP raber can be fabricated in various shapes and sizes, such as square, circular, or rectangular cross-sections. The corner radius of the square columns can be adjusted to optimize the confinement effectiveness of the FRP tube. The FRP tube can also be customized with different colors, textures, or patterns to suit the aesthetic requirements of the project.

GFRP raber can be easily installed on site using simple tools and techniques. The FRP tube can be cut to the desired length and joined with adhesive or mechanical connectors. The concrete can be poured into the FRP tube using conventional methods or precast in advance. The FRP spiral bars can be inserted into the concrete before or after curing, depending on the design specifications.

GFRP raber can withstand various environmental conditions and loads, such as axial compression, bending, shear, torsion, impact, earthquake, fire, or corrosion. The FRP tube protects the concrete from moisture, chemicals, or temperature variations, extending its service life. The FRP spiral bars enhance the ductility and toughness of the concrete, enabling it to resist cracking or spalling under extreme loading scenarios. 

Product Specifications

The following table summarizes some of the typical specifications of GFRP raber based on previous studies. These values are for reference only and may vary depending on the design parameters and material properties of each project.

Parameter Unit Value
Height-to-width ratio - 2.0
Corner radius (for square columns) mm 15 - 45
FRP tube thickness mm 2 - 4
FRP tube fiber volume fraction % 40 - 60
FRP tube elastic modulus GPa 20 - 40
FRP spiral bar diameter mm 6 - 12
FRP spiral bar pitch mm 30 - 60
FRP spiral bar fiber volume fraction % 50 - 70
FRP spiral bar elastic modulus GPa 40 - 60
Concrete compressive strength MPa 20 - 60

Production Process

  • Pultrusion Profile Equipment

    Pultrusion Profile Equipment

  • Fiberglass placed on a shelf

    Fiberglass placed on a shelf

  • Profile mold debugging

    Profile mold debugging

  • Profile cutting

    Profile cutting

  • Profile punching

    Profile punching

  • Profile cutting details control

    Profile cutting details control

  • Profile inspection

    Profile inspection

  • Profile packaging

    Profile packaging


More >>


  • Certificate
  • Certificate
  • Certificate
  • Certificate
  • Certificate


01- Are you Trading Company or Manufacturing Factory?

We are both manufacturer trading and company. We have our own factory and we have better service ofoverseas customers. Welcome to send your inquiry!

02- I am interested in your products, could I get sample for free?

We can supply a few pieces FREE samples if we have some in stock, and you only need to pay the freight cost by yourself. Welcome to send your inquiry for FREE samples!

03- How about the Delivery time?

10-15days after receiving the deposit based on the MOQ. Normally, 30-35days to finish the order for a 20ft container. Welcome to ask for the detailed delivery time according to your order quantity!

04- How can you guarantee the product quality?

Our whole production lines and products have been certificated by IS09001:2015, and it's been followed strictly. We also have the professional QC team, and each our package worker will be in charge of the final inspection according to the QC instruction before packing.

05- What is about the payment terms.

Basically, the payment terms areT/T,L/C at sight. Western Union, Paypal, Moneygram, Alipay Credit card are acceptableforsample order.

06- Can you do OEM for me?

We accept all OEM orders,just contact us and give me your design,we will offer you a reasonable price ASAP.

Industry Application

More >>

Client Feedback

  • The quality of the product is very good, all performance tests have passed, and the service attitude of the docking staff is very good


    Engineer, From india

  • Compared with our local products, the quality of this batch of profiles is quite good, it is worth recommending


    CEO, From Germany

  • The engineer has comprehensive professional knowledge, answered many questions, and put forward many useful suggestions, which made the plan more perfect


    CTO, From Mexico

Get Quote & Solution

Get Quote & Solution