MATERIAL PROPERTIES AT A GLANCE
PROPERTY LABEL
Tensile Strength
600 – 1200 MPA
Exceeds standard steel yielding points, offering superior load-bearing safety margins in structural concrete. Approximately 2.5x the tensile strength of steel at the same bar diameter.
PROPERTY LABEL
Thermal Expansion
6 – 10 X 10⁻⁶ /°C
Matches concrete thermal coefficients closely, minimizing internal stresses and delamination during temperature shifts. Low thermal conductivity also reduces energy loss through the structure.
PROPERTY LABEL
Modulus of Elasticity
40 – 60 GPA
Optimized stiffness-to-weight ratio for reduced crack propagation and enhanced seismic performance. E of GFRP is roughly one quarter that of steel, so serviceability governs the layout.
PROPERTY LABEL
Corrosion Resistance
NON-CORROSIVE
Eliminates concrete spalling risks in salt-exposed or chemical environments; reduces maintenance lifecycles by 80%.
PROPERTY LABEL
Density
1.9 – 2.1 G/CM³
Significantly reduces structural dead load and logistical costs; approximately 1/4 the weight of traditional steel reinforcement.
PROPERTY LABEL
Structural Durability
100+ YEARS
Engineered for century-long infrastructure performance, surpassing traditional steel in environmental weathering tests.
TWO NON-METALLIC CONSTITUENTS, ONE ENGINEERED BAR
Fiberglass rebar is a composite material made of two non-metallic components used for concrete reinforcement. Every bar is produced by pultrusion, the continuous process that gives GFRP its consistent mechanical performance along the full length.
Fibre, the structural constituent
E-CR glass fibre carries the load and defines the ultimate tensile capacity and modulus of elasticity of the bar. Boron-free, corrosion-resistant glass produced on 85+ years of glass fibre innovation.
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Matrix, the binder
A thermoset resin system (vinyl ester or epoxy) protects the fibres from alkali degradation, guarantees long-term durability and creates composite action between glass and resin.
Pultrusion, the process
Continuous rovings are impregnated with resin, pulled through a heated die, surface-treated for bond and cured into a straight, dimensionally stable bar with consistent fibre volume fraction.
INSTALLATION & HANDLING GUIDELINES
Easier and safer handling and placement, with fewer workers and faster work, GFRP bars can be tied in the same way as steel ones.
01
STORAGE & PROTECTION
GFRP rebar should be stored off the ground on timber dunnage. While inherently corrosion-resistant, prolonged exposure to direct UV radiation (over 3 months) should be avoided by using opaque protective sheeting to maintain resin integrity.
02
CUTTING & FIELD REPAIRS
Never use shear cutters or torches. GFRP must be cut using a high-speed diamond blade or masonry saw to ensure a clean finish without fraying the fibres. Standard PPE, including dust masks and gloves, is mandatory during cutting operations.
03
ON-SITE PLACEMENT
Due to its lower density, GFRP rebar may float during concrete vibration; ensure cage stability by using plastic chairs spaced at closer intervals than steel. Secure bars using plastic-coated wire ties or nylon cable ties to maintain non-magnetic properties.
TECHNICAL LIBRARY
Access our comprehensive database of technical documentation, safety protocols, and engineering design guides for GFRP reinforcement solutions.
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