VajraCor® GFRP Rebars Solutions
Revolutionary Glass Fiber Reinforced Polymer rebars that are Stronger | Lighter | Cheaper
What is GFRP?
Glass Fiber Reinforced Polymer (GFRP) is a composite material made of glass fibers embedded in a resin matrix, engineered as a high-performance alternative to traditional steel rebars.
Material Composition & Structure
Glass Fibers (60-75% by volume)
Continuous roving oriented along the bar axis with 10-20 µm diameter filaments for maximum load-carrying capacity.
Polymer Matrix
Vinyl ester or epoxy resin systems that bind fibers, transfer loads, and protect from environmental attack.
Surface Deformation
Helical or ribbed surface design for optimal mechanical interlock and bond strength ≥30-40 MPa with concrete.
Pultrusion Process
Continuous glass rovings and resin are pulled through a heated die that shapes and cures the composite into uniform cross-section bars.
Quality Advantages
- • High production rate
- • Uniform quality control
- • Consistent material properties
Why Choose ASSP VajraCor® GFRP Rebars?
ASSP Advanced Materials brings deep technical expertise and innovation to deliver superior GFRP solutions that outperform traditional steel in every critical aspect.
900-1100 MPa tensile strength - more than double that of conventional steel (500 MPa).
100+ years durability with complete resistance to all forms of corrosion.
4x lighter than steel with 25-30% cost savings and 10-15% transportation savings.
Lightweight design enables easier handling, cutting, and installation with plastic clips.
Superior fatigue performance with 2.5x less cracking and 20x longer life under cyclic loads.
Significantly lower carbon footprint with 20-30k kg CO₂ emissions vs steel's 65-120k kg.
Steel vs GFRP Comparison
Comprehensive comparison between traditional steel rebars and advanced GFRP rebars across key performance metrics.
| Property | GFRP Rebar | Steel Rebar | Advantage |
|---|---|---|---|
| Tensile Strength | 900-1200 MPa | 500 MPa | 2.4x Higher |
| Density | 1.9-2.1 g/cm³ | 7.8 g/cm³ | 4x Lighter |
| Corrosion Resistance | Completely Resistant | Susceptible | 100% Better |
| Service Life | 100+ Years | 30-50 Years | 2-3x Longer |
| Bond Strength with Concrete | 17 MPa | 13 MPa | 3x Higher |
| Electrical Conductivity | Non-Conductive | Conductive | Safer |
| Magnetic Properties | Non-Magnetic | Magnetic | MRI Compatible |
| Thermal Conductivity | Low (Insulator) | High (Conductor) | 34% Less Heat Loss |
| Fatigue Life | 20x Longer | Standard | Superior Durability |
Properties & Applications
Comprehensive technical specifications and diverse application areas for VajraCor® GFRP Rebars.
Product Formats
ASSP's VajraCor® GFRP Rebars are available in multiple formats to suit various construction requirements and applications.
Standards & Certifications
ASSP VajraCor® GFRP Rebars comply with comprehensive international and Indian standards ensuring quality, safety, and performance across all applications.
AASHTO (2018)
"LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete," American Association of State Highway and Transportation Officials.
ACI 440R-07 (2007)
"Report on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures" ACI Committee 440.
ACI 440.5-18 (2018)
"Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars" ACI Committee 440.
ACI 440.6M-08 (2017)
"Specification for Carbon and Glass Fiber-Reinforced Polymer Bar Materials for Concrete Reinforcement" ACI Committee 440.
ASTM D570-98 (2018)
"Standard Test Method for Water Absorption of Plastics." ASTM International
ASTM D792-20 (2020)
"Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement" ASTM International
ASTM D7205/D7205M-21 (2021)
"Standard Test Methods for Tensile Properties of Fiber Reinforced Polymer Matrix Composite Bars" ASTM International
ASTM D7957 (2017)
"Standard Specification for Solid Round Glass Fiber Reinforced Polymer Bars for Concrete Reinforcement", ASTM International, West Conshohocken, PA, USA
IRC 137:2022
Guidelines for use of GFRP rebar in Highway and Infrastructure projects
BIS CODE IS 18256: 2023
For solid round glass fibre reinforced polymer (GFRP) bars used to reinforce concrete
ACI 440.1R-15
Guide for the Design and Construction of Structural Concrete Reinforced with Fiber-Reinforced Polymer (FRP) Bars
MORTH Circular
Ministry of Road Transport and Highways approval for highway applications
All ASSP GFRP rebars undergo rigorous testing and quality assurance processes to ensure compliance with international and Indian standards.
Certifications and Accreditations
At ASSP Advanced Materials Private Limited, we pride ourselves on maintaining the highest standards of quality and compliance in the manufacturing and supply of advanced materials. Our commitment to excellence is reflected in the various certifications and accreditations we have achieved.
We are proud to be ISO 9001:2015 certified, which underscores our adherence to international quality management standards. This certification covers our scope of manufacturing GFRP Rebars, BFRP Rebars, CFRP Rebars, and Bullet Proof Vests, as well as trading AAC Blocks, Block Adhesive, Ready Mix Plaster, Murfor Mesh, and GGBS.
Our compliance with Good Manufacturing Practices ensures that our products are consistently produced and controlled according to quality standards. This certification is essential for our manufacturing processes and product quality assurance.
Testing and Quality Reports
Essar Laboratories & Research Centre
Gogte Institute of Technology
| Specimen No | Deflection at Ultimate Load (mm) | Ultimate Load (kN) | Flexural Strength (N/mm²) |
|---|---|---|---|
| 1 | 14.25 | 93.90 | 8.875 |
| 2 | 9.72 | 112.20 | 10.60 |
| 3 | 10.30 | 128.50 | 12.14 |
The failure patterns and load vs. deflection curves for each specimen were thoroughly analyzed to ensure the highest quality and performance of our GFRP Rebars.
Ready to Upgrade to VajraCor® GFRP Rebars?
Contact ASSP Advanced Materials today to discuss your project requirements and discover how our VajraCor® GFRP Rebars solutions can enhance your construction projects.
ASSP Advanced Materials Pvt. Ltd.
995/2 GADE MARG, SHAHAPUR, BELGAUM - 590003