Repair Systems
CFRP strips & laminates
Pultruded CFRP laminate strip — technical reference for reinforcement corrosion in Australian remedial building practice. Covers system selection, product comparisons, and brand equivalents.
What is cfrp strips & laminates?
Carbon fibre reinforced polymer (CFRP) strips are thin, pre-cured composite laminates bonded to the tension face of concrete elements to restore or increase flexural, shear, or axial capacity. Specified by structural engineers as a non-invasive strengthening solution for beams, slabs, columns, and walls where load conditions have changed, section capacity has been reduced by corrosion or damage, or a change-of-use upgrade is required without adding structural depth or self-weight. CFRP is the lightest and highest-strength structural strengthening material available, with tensile strength typically 3–5× structural steel at less than 20% of the weight, and it does not corrode in aggressive environments. Application requires specialist accredited applicators, meticulous concrete surface preparation (minimum CSP 4), and a structural engineer overseeing the work to ensure the laminate is correctly positioned and bonded. Full-depth epoxy bond to sound concrete must be verified by tap testing after cure.
Product Reference
Scroll right to see all brands. Use each card's TDS link for verified specifications before specifying on any project.
System Description
For flexural and shear strengthening. Apply with compatible epoxy laminating resin. Structural engineer to design.
Technical Properties
- High tensile strength-to-weight ratio — up to 10× structural steel at less than 20% of the weight
- No corrosion risk — suitable for aggressive and marine-exposure environments
Limitations
- Highest material and installation cost of all structural strengthening options
- Not inherently fire-rated — additional intumescent protection is typically required
PROCUREMENT SOURCES
Fosroc Nitowrap CW
unidirectional carbon fibre fabric system for structural strengthening, roll
System Description
For flexural and shear strengthening. Apply with compatible epoxy laminating resin. Structural engineer to design.
Technical Properties
- High tensile strength-to-weight ratio — up to 10× structural steel at less than 20% of the weight
- No corrosion risk — suitable for aggressive and marine-exposure environments
Limitations
- Highest material and installation cost of all structural strengthening options
- Not inherently fire-rated — additional intumescent protection is typically required
PROCUREMENT SOURCES
System Description
For flexural and shear strengthening. Apply with compatible epoxy laminating resin. Structural engineer to design.
Technical Properties
- High tensile strength-to-weight ratio — up to 10× structural steel at less than 20% of the weight
- No corrosion risk — suitable for aggressive and marine-exposure environments
Limitations
- Highest material and installation cost of all structural strengthening options
- Not inherently fire-rated — additional intumescent protection is typically required
PROCUREMENT SOURCES
System Description
For flexural and shear strengthening. Apply with compatible epoxy laminating resin. Structural engineer to design.
Technical Properties
- High tensile strength-to-weight ratio — up to 10× structural steel at less than 20% of the weight
- No corrosion risk — suitable for aggressive and marine-exposure environments
Limitations
- Highest material and installation cost of all structural strengthening options
- Not inherently fire-rated — additional intumescent protection is typically required
PROCUREMENT SOURCES
Brand Equivalents
Side-by-side view of equivalent products across all major brands.
| Material | Ardex | Sika | Fosroc | Tremco / Other | Parchem / Mapei |
|---|---|---|---|---|---|
| Carbon-fibre reinforcement strip (CFRP) | — | Sika CarboDur M614 | Fosroc Nitowrap CW | Mapei Mapewrap C Uni-Axial | Parchem Nitowrap Carbon |
Disclaimer
Information is general only. Product selection must be confirmed against project requirements, substrate condition, exposure class, manufacturer technical data sheets, NCC requirements, Australian Standards (including AS 3600), and consultant or structural engineer specifications. Do not rely on this reference as a substitute for professional engineering advice.
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