Fiberglass Rebar (GFRP)

Fiber Dowels / Products / Fiberglass Rebar (GFRP)
Fiber Dowels - Product - Fiberglass reinforcement bars

Fiberglass rebars are profiled rods used in concrete structures to prevent the expansion of plates caused by temperature variations, among other factors. The fiberglass variant offers several advantages. In this article, we will cover everything you need to know about fiberglass rebars!


Fiberglass rebars come with numerous benefits you may not be aware of. To help you make an informed decision, here are the key advantages:


Fiberglass is up to 4 times lighter than steel, making it faster to work with and requiring less labor. This contributes to the satisfaction of workers.

Yield strength

The yield strength of fiberglass is higher than that of traditional steel versions. This has been confirmed through testing with dowels.

Environmentally friendly

The production of fiberglass products emits less CO2 compared to producing their steel counterparts, making them environmentally friendly.

Technical specifications

Fiberglass is not only an environmentally conscious choice but also a lightweight and incredibly robust material, offering even more advantages compared to steel. With a tensile strength of up to 1000 MPa and a composition consisting of 70% fibers, it delivers impressive performance. Additionally, fiberglass is entirely immune to radio waves and can provide tensile strengths ranging from 600 to 1600 N/mm². As a bonus, it has a thermal conductivity of only 0.25%. To learn more about the technical specifications in comparison to steel, check out our Fiberglass vs. Steel!

Fiberglass rebars 600/16GV-A6001616mm600mm
Fiberglass rebars 600/20GV-A6002020mm600mm
Fiberglass rebars 800/16GV-A8001616mm800mm
Fiberglass rebars 800/20GV-A8002020mm800mm

Applications and areas of application for Fiberglass Rebar

Fiberglass rebars are used at longitudinal joints in concrete pavements. The profiled rods are applied in an adhesive manner, connecting the plates in the concrete pavement and transmitting tensile forces. The diameter and spacing are determined in the overall design.

Also, explore our other products such as fiberglass dowels, fiberglass dowel baskets, and T-FORM.

Recent projects

Fiberglass rebars can be applied to various projects, making a positive impact. Here are some notable projects using fiberglass rebars:

Fiber Dowels - Project - Fiberglass rebars Reppel

Fiberglass rebars delivered in Reppel

For a project in Reppel, Belgium 450 Fiberglass rebars were delivered.
Fiber Dowels - Project - Fiberglass dowels Ham

Fiberglass dowels applied in Ham

For a project in Ham, Belgium 1335 fiberglass dowels and 150 fiberglass tie-bars were delivered.

Why you should work with the Fiberglass Rebar of Fiber Dowels

Fiber Dowels’ fiberglass rebars offer all the benefits of steel rebars and more. They are lighter, environmentally friendly, and corrosion-resistant. These combined advantages make projects more sustainable, cost-effective, and easier to execute.

A fun fact

Did you know that fiberglass rebars do not lose strength at low temperatures.