Why Steel Falls Short
Steel has been the backbone of construction. In moisture, salt and chemical exposure it corrodes, which cuts durability and raises maintenance cost.
GWC REBARS | A GWC GROUP BUSINESS
Built Once.Built Forever.
Redefining reinforcement for modern infrastructure. GFRP rebars that do not corrode.
600 to 1,200 MPa Tensile Strength
About 1,900 to 2,100 kg/m3 Density
Non-Corrosive, Non-Magnetic, Non-Conductive
Batch-Level Testing
Typical values. Diameter-wise data on request.
Engineering the Future of Strength
GWC Rebars is a next-generation manufacturer of glass fibre reinforced polymer (GFRP) rebars for the infrastructure of tomorrow. Rooted in North-East India, we combine advanced materials, precision engineering and uncompromising quality to make rebars built for performance and durability.
GWC Rebars offer high tensile strength, a fraction of the weight of steel, and resistance to moisture, salt and chemicals.
GFRP rebars do not rust. They are lighter to transport and install, and suited to the environments where steel is most at risk.
Key Advantages of GWC Rebars
Does not corrode
Resists moisture, salt and harsh chemicals.
High tensile strength
600 to 1,200 MPa, against 500 to 550 MPa for conventional rebar.
Lightweight
About 1,900 to 2,100 kg/m3, against about 7,850 for steel.
Easy to handle and cut
Simpler transport, cutting and installation on site.
Non-conductive and non-magnetic
Suits sensitive environments and specialised applications.
Low thermal expansion
Expansion closer to concrete, which lowers the risk of thermal cracking.
Lower installation cost
Lighter bars mean less labour and handling.
Batch-level testing
Consistent performance from batch to batch.
GWC Rebars Compared with Steel
HIGH TENSILE STRENGTH
600–1200 MPa
(500–550 MPa for conventional rebars)
LOW DENSITY
~1900–2100 kg/m³
(~7850 kg/m³ for conventional rebars)
REDUCED RISK OF THERMAL CRACKING
Coefficient of thermal expansion closer to that of concrete, minimizing the risk of cracking. (Conventional rebars can expand and contract more significantly.)
EASE OF INSTALLATION
Lightweight and easy to handle, reducing labour intensity and simplifying installation. (Conventional rebars are heavier and more difficult to handle.)
Note: The values 120–150 MPa (~200 MPa for conventional rebars) appear to be flexural modulus values. If so, they should be presented separately and not under “Ease of Installation.”
THERMAL INSULATION
High
(Low for conventional rebars)
CORROSION RESISTANCE
100% corrosion resistant
(Conventional rebars are prone to corrosion.)
NO ADDITIONAL COATINGS REQUIRED
Eliminates the need for protective coatings, reducing costs and complexity.
(Conventional rebars often require additional coatings to resist corrosion.)
NON-MAGNETIC AND NON-CONDUCTIVE
Ideal for sensitive environments and specialized applications.
(Conventional rebars are magnetic and electrically conductive.)
ZERO MAINTENANCE
Significantly reduces maintenance costs over the life of the structure.
(Conventional rebars require periodic inspections and maintenance to address corrosion.)
HIGH STRENGTH-TO-WEIGHT RATIO
Delivers exceptional strength while remaining lightweight.
(Conventional rebars have a lower strength-to-weight ratio.)
HIGH DURABILITY
Excellent resistance to chemicals, moisture, and aggressive environments.
(Conventional rebars have limited durability and are susceptible to corrosion.)
LONG SERVICE LIFE
75+ years
(20–30 years for conventional rebars, depending on exposure conditions)
Standards
GWC Rebars are made to the requirements of:
IS 18256:2023
Solid round glass fibre reinforced polymer (GFRP) bars for concrete reinforcement. Specification.
IRC 137:2022
Guidelines on use of fibre-reinforced polymer bars in road projects (Part 1: GFRP bars).
ASTM D7957
Standard specification for solid round glass fiber reinforced polymer bars for concrete reinforcement.
ACI CODE-440.11-22
Building code requirements for structural concrete reinforced with glass fiber-reinforced polymer (GFRP) bars.
GWC Rebars are carefully packed for safe transport and easy handling.
Applications
Roads and Highways
- Approach Slabs
- Foot Over Bridge Walkways
- Slab Culverts
- Bridge-cum-Bandharas, including Deck Slabs and Pier Barriers
- Concrete Roads, including Jointed Plain Concrete Pavements
- Continuously Reinforced Concrete Pavements (CRCP)
- Short-Panel Concrete Pavements (Cast-in-Situ and Precast)
- Retaining Walls
- Noise Barriers
- Box Culverts
- Crash Barriers and Bridge Parapets
- Pedestrian Parapets and Railings
- Bulkheads and Bulkhead Copings Drains
- Plain Concrete Components
Industrial / Commercial
- Deck Slabs
- Underground Water Tanks
- Sewage Treatment Plants
- Flooring
- Septic Tanks
- Chemical and Wastewater Treatment Plants
- Boundary Walls
Real Estate
- Parking Garages
- Drainage Systems
- Pavements and Internal Roads
- Swimming Pools
- Sewage Treatment Plants
- Flooring
- Underground Water Tanks
- Grade Slabs
Bridges and Tunnels
- Tunnel Eyes
- Mechanically Stabilized Earth (MSE) Wall Panels and Copings
- Retaining Walls
- Bridge Decks and Deck Overlays
- Noise Barriers
- Crash Barriers and Bridge Parapets
Airports, Ports & Metro Stations
- Runways
- Drains
- Sewage Treatment Plants
- Underground Water Tanks
- Noise Barriers
- Deck Slabs
- Non-Structural Walls
Where durability matters, GWC Rebars deliver dependable performance, project after project.
Built for Diverse Applications
GWC Rebars are engineered to deliver reliable performance across a wide range of demanding environments, where strength, durability, and consistency are critical to long-term structural integrity.
Where durability matters, GWC Rebars deliver dependable performance you can rely on—project after project
Why It Matters
Lower lifecycle cost
Enhanced durability in demanding environments
Reduced risk of corrosion-related failures
Reliable, predictable performance over time
Backed by GWC Group
GWC Rebars is part of GWC Group, an infrastructure enterprise led by entrepreneurs whose association with infrastructure development spans generations.
Experience in Infrastructure
Precision in Materials
Confidence in Performance
Technical Data
Diameter-wise specifications, test reports and handling guidelines for engineers and procurement teams.
Handling and Safety
Wear gloves, safety glasses and a dust mask to guard against splinters and dust.
Do not bend on site. GFRP rebars are strong but not ductile like steel.
Use non-metallic tools, such as plastic or rubber mallets.
Store on flat or padded supports to keep the bars straight.
Cut with diamond or carbide blades. Use water suppression or dust extraction.
Handle with care to avoid exposed fibres and sharp edges.
Use proper lifting equipment for heavy bundles.
Secure bars in position during installation to prevent movement.
Install as per the structural design, including anchorage and development length, and have the design reviewed by a qualified professional.
GWC Rebars have limited resistance to elevated temperatures. Provide adequate concrete cover as the design requires, keep bars away from direct flame and excess heat during handling and installation, and follow local fire safety codes.
GWC Rebars
Get in Touch
For specifications, quantities or project discussions, share your requirement. We respond with data and pricing.
Call Us+91 75770 10777Visit Us1st Floor, Anil Plaza-II, ABC, Guwahati, Assam, India.
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