Part 2 – Detailed Testing and Quality Determination of GFRP Rebars
Inside the Lab: The 12 Critical Tests That Define GFRP Quality
Behind every certified SFT-Bar® GFRP Rebar lies a rigorous testing process — 12 comprehensive evaluations that measure every mechanical, physical, and durability property that defines structural integrity.
Conducted under the standards ASTM D7957/D7957M − 22, ASTM D8505-23, and CSA S807:19, these tests ensure that each GFRP Rebar can withstand the world’s most demanding conditions. The series of tests includes:
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Mechanical Tests – Tensile Strength, Modulus of Elasticity, Transverse Shear, Bond Strength to Concrete, and Bent Bar Performance.
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Physical Tests – Fiber Content, Glass Transition Temperature (Tg), Degree of Cure, and Moisture Absorption.
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Durability Tests – Alkali Resistance, Long-Term Performance, and Dimensional Stability.
Each property must meet precise thresholds — for example, tensile modulus ≥ 44,800 MPa, and alkaline resistance ≥ 80% after 90 days — to achieve certification.
SFTec, Inc., the manufacturer of SFT-Bar®, leads this testing program through partnerships with Université de Sherbrooke and the University of Miami, two of the only fully accredited laboratories in the world capable of performing all 12 tests under one roof. Under the direction of world-renowned experts such as Prof. Brahim Benmokrane, Prof. Antonio Nanni, and Prof. Francisco De Caso, these institutions validate each batch of SFT-Bar® Rebars through full-scale ASTM and CSA procedures.
This level of verification is what sets SFT-Bar® apart — and what allows RayBelle Infratrade Corp. to deliver GFRP solutions with tested reliability, engineering precision, and proven performance.
RayBelle Infratrade Corp. — where every rebar is a result of science, not assumption.
