Fiberglass Rebar 90 Degree Corners (Customized)

Product Description

Our factory-formed fiberglass rebar 90 degree corners are designed for concrete reinforcement at corner junctions where non-metallic bars are preferred. These GFRP (Glass Fiber Reinforced Polymer) corners are pre-bent to 90° in controlled factory conditions, so installers do not need to bend them on site. Each corner is manufactured with a vinyl-ester or epoxy resin matrix and continuous glass fibers, giving consistent mechanical properties and corrosion resistance in saltwater, chemical, and other aggressive environments.

Because GFRP is approximately one-fourth the weight of steel for equal diameter, these corners are easier to transport, position, and tie. They also retain high tensile strength at the bend, making them suitable for foundations, retaining walls, marine structures, pool shells, and precast concrete elements where metallic reinforcement may corrode. Common arm lengths include 12″×12″, 24″×24″, and 36″×36″, with standard diameters from #3 (3/8″) to #8 (1″). Custom arm lengths, angles, and diameters are available on request.

IncomePultrusion produces these corners using the same pultrusion machines and precision pultrusion dies used for our pultruded FRP profiles and FRP rebar range, so dimensional consistency and fiber alignment are maintained across batches.

Technical Specifications

Applications & Use Cases

• Concrete Foundation Corners: Pre-bent corners simplify reinforcement at foundation perimeters and footings.
• Seawall Construction: Non-metallic reinforcement for marine concrete exposed to saltwater.
• Swimming Pool Corner Reinforcement: Reduces risk of rust staining and concrete spalling in pool shells.
• Retaining Wall Edge Reinforcement: Used at corner junctions where corrosion-resistant bars are specified.
• Bridge Deck Perimeter Reinforcement: Suitable for road-salt exposure where deicing chemicals accelerate steel corrosion.
• Wastewater Treatment Plant Construction: Withstands chemical exposure at concrete corner details.
• Precast Concrete Corner Elements: Provides consistent geometry in manufactured corner components.

Product Advantages

1. Factory-Formed Geometry: Each corner is bent under controlled conditions to protect fiber continuity and maintain strength at the bend.
2. Corrosion Resistance: Vinyl-ester and epoxy GFRP resist chlorides, alkalis, and saltwater, reducing long-term maintenance in aggressive environments.
3. Lightweight Handling: At roughly one-fourth the weight of steel for equal diameter, crews can carry and position more bars per lift.
4. High Tensile Strength at the Bend: Designed to retain high tensile strength at the corner, supporting structural requirements at critical junctions.
5. Thermal Compatibility: Coefficient of thermal expansion is closer to concrete than steel, which can reduce stress at corner interfaces during temperature cycles.
6. Electrical & Magnetic Neutrality: Non-conductive and non-magnetic, suitable for applications near sensitive equipment or where galvanic corrosion must be avoided.

Material Comparison: Fiberglass vs. Steel Rebar Corners

Frequently Asked Questions about Fiberglass Rebar 90 Degree Corners

What makes factory-bent fiberglass rebar 90 degree corners different from site-bent steel corners?

Fiberglass rebar cannot be field-bent without damaging the glass fibers. Factory bending controls temperature, radius, and fiber alignment so the corner retains high tensile strength at the bend and arrives ready to place.

How do I specify the correct fiberglass rebar corner sizes for my concrete project?

Measure the horizontal and vertical arm lengths required for your corner detail, then select a corner with arms equal to or slightly longer than needed. Common sizes are 12″×12″, 24″×24″, and 36″×36″. Choose the diameter according to your structural engineer’s design (#4/1/2″ is common for light-duty work; larger projects may use #6–#8).

Can I cut fiberglass rebar corners to fit my specific dimensions?

Yes, GFRP corners can be cut on site with a high-speed diamond blade or fine-toothed abrasive saw. Wear respiratory protection, eye shields, and gloves because cutting produces glass fiber dust. Seal cut ends if required by the specification.

How do I connect fiberglass rebar corners to straight rebar sections?

Use lap splicing with zip ties or nylon rebar ties. Typical overlap is 40× the bar diameter unless the project engineer specifies otherwise. For example, a #4 (1/2″) bar usually needs a 20″ overlap on each side. Do not weld GFRP.

Are custom-sized fiberglass rebar corners available for unique projects?

Yes. We fabricate custom arm lengths, special bend angles, and non-standard diameters. Minimum order quantities and lead times apply for custom sizes. Contact us with your project specifications for a tailored quote.

How do fiberglass rebar corners compare to traditional steel in freeze-thaw conditions?

GFRP has a coefficient of thermal expansion closer to concrete than steel, which can reduce differential movement and corner cracking during freeze-thaw cycles. The exact benefit depends on mix design, exposure severity, and detailing.

Bulk Supply & Custom Options

IncomePultrusion supplies fiberglass rebar 90 degree corners in standard and custom configurations for contractors, precast plants, and distributors. We can match resin systems, diameters, arm lengths, and bend angles to your project requirements and ship in bulk quantities.