Introduction:

In an age where durability, sustainability, and innovation shape the construction industry, High-Strength Fiberglass Rebar (GFRP) represents a breakthrough for reinforcing concrete structures. Offered via Candide Global on Build Pakistan, this advanced rebar presents impressive material properties for builders aiming for long-lasting, corrosion-resistant construction.

What Is Fiberglass Rebar (GFRP)?

Fiberglass Rebar, or GFRP, is a composite material combining fiberglass fibers and resin—usually via pultrusion. This production method ensures a uniform, high-performance rebar. Unlike steel, GFRP is non-corrosive, non-magnetic, and offers a remarkable tensile strength of 500–600 MPa, while maintaining a low density of 2.1–2.2 g/cm³.

Check out the Product: https://build.com.pk/product/high-strength-fiberglass-rebar-gfrp

 

Key Attributes of Candide Global’s GFRP Rebar

Diameter: Customizable between 6 mm and 32 mm

Tensile Strength: 500–600 MPa

Shear Strength: >110 MPa

Elastic Modulus (E-modulus): ≥40 GPa

Colors & Lengths: Customizable

Working Temperature: −40 °C to 120 °C

Service Life: Over 75 years

Surface: Sand-coated or smooth for better concrete bonding

It offers a better lifecycle in corrosive environments compared to steel.

Advantages of GFRP Rebar

Corrosion Resistance & Longevity:

GFRP doesn’t rust—ideal for marine or chemically aggressive environments—extending structure lifespan significantly.

High Strength-to-Weight Ratio:

• It's strong yet lightweight, easing handling and reducing structural load.

• Perfect for MRI rooms, toll booths, or structures requiring radio transparency.

Reduced Concrete Cover Requirements:

Its corrosion resistance allows for thinner concrete covers, saving materials.

Limitations and Design Considerations

Brittleness & Low Ductility:

GFRP fails without yielding—offering little warning before failure—so structures need careful design adjustments.

Lower Modulus & Greater Deflection:

With lower stiffness, concrete members may deflect more under load, demanding recalibration in design.

Difficulty in Field Bending:

GFRP cannot be bent on-site—pre-fabricated bends are required, increasing cost and complexity

Shear Reinforcement Challenges:

Inferior shear performance often requires redesign using more concrete or alternative solutions.

Practical Considerations for Engineers

• Consult engineers familiar with GFRP design principles

• Account for increased quantity or thickness due to deflection limits

• Ensure pre-fabricated elements are properly ordered for on-site assembly

• Implement adequate fire protection due to limited heat resistance

Summary Table: GFRP vs. Steel Rebar

Final Insights:

High-Strength Fiberglass Rebar (GFRP) is redefining construction in Pakistan by offering a corrosion-resistant, strong, and long-lasting alternative to steel. Especially for demanding environments or long-term infrastructure, GFRP adds significant value.

Available now on Build Pakistan from Candide Global—it’s a smart option for forward-thinking engineers and developers.