Structural Engineering Data
Technical Specs & Data Sheets
Official engineering datasheet for Hindustan FRP. Review nominal diameters (6mm-32mm), weights, ultimate tensile strengths, bond ratings, and code compliance checklists.
Tested Parameters.
Certified engineering traits that exceed traditional steel structural criteria.
1100+
MPa Ultimate Tensile Strength
Delivers double the tensile resistance of high strength carbon steel rebars, establishing a high structural safety factor.
46 GPa
Modulus of Elasticity
Engineered to behave linear-elastically up to structural failure, designed in full compliance with ACI 440 deflection criteria.
>70%
Fiber Glass Content
10+ MPa
Minimum Concrete Bond
IS 18256
Bureau of Indian Standards Certified
Manufactured and tested strictly as per IS 18256:2023, the definitive national standard for structural composites.
Dimensional Data & Strength Limits
Diameter (mm)
Nominal Area (mm²)
Linear Weight (kg/m)
Min Tensile Strength (MPa)
6 mm
28.27
0.058
1150 MPa
8 mm
50.27
0.098
1150 MPa
10 mm
78.54
0.116
1100 MPa
12 mm
113.10
0.220
1100 MPa
16 mm
201.06
0.395
1000 MPa
20 mm
314.16
0.620
950 MPa
25 mm
490.87
0.960
850 MPa
32 mm
804.25
1.620
750 MPa
Physical & Thermal Specifications.
Chemical, thermal, and material properties supporting long-term concrete stability.
Material Composition
Primarily composed of high-strength Boron-free E-CR glass fibers bound in a high-grade chemical-resistant epoxy resin matrix, providing maximum resistance to alkaline cement environments.
Thermal Coefficient
Longitudinal CTE is 9.0 x 10^-6 /°C, matching concrete expansion rates to eliminate thermal shear stress. Transverse CTE is 22.0 x 10^-6 /°C, maintaining internal structural consistency.
Electrical Insulation
GFRP is completely dielectric, offering an electrical volume resistivity greater than 10^12 ohm-cm. This prevents galvanic loop currents and track-current leaks in heavy rail tunnels.
Product Engineering
GFRP Ribbed Bar Diameters & Profile
Technical FAQ.
What standard testing codes govern GFRP rebar parameters?
Our composite rebars are designed and tested according to ASTM D7957 (Standard Specification for Solid Round GFRP Bars for Concrete Reinforcement) and are certified under the Bureau of Indian Standards code IS 18256:2023.
What is the shear strength of GFRP rebar?
GFRP rebar features a transverse shear strength exceeding 150 MPa, in compliance with ASTM D7617 test criteria. This ensures adequate resistance to lateral forces inside the reinforced concrete element.
How does GFRP bond strength with concrete compare to steel?
Due to the external spiral-wound fiber wrap and sand-coating texture, GFRP bond strength exceeds 15 MPa, which matches or exceeds standard deformed steel rebars, preventing slippage inside the concrete matrix.