Repair
CFRP Systems
Carbon-fibre (CFRP) strengthening to increase the capacity of existing concrete elements without added mass.
Get a Free QuoteWhat Is CFRP Systems?
CFRP Systems use carbon-fibre reinforced polymer — externally bonded fabrics and laminates — to increase the flexural, shear or axial capacity of existing concrete members. The high-strength, low-weight material is bonded to the prepared surface with structural epoxy, adding strength without significant dead load or loss of headroom.
Design and installation follow ACI 440.2R and fib Bulletin 14, using structural bonding materials conforming to EN 1504-4. CFRP is ideal where loads have increased, where reinforcement has corroded, or where a new opening has weakened an element.
Why You Need It
When a slab, beam or column is asked to carry more than it was designed for — a change of use, new equipment, or a new opening — demolition and rebuilding is disruptive and costly. CFRP restores or increases capacity in place, in days rather than weeks.
Because the system is thin and light, it strengthens without enlarging members or adding foundation load, keeping the building in service with minimal intrusion.
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Get a Free QuoteOur Process
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Structural Assessment
Review the element, confirm the strengthening demand and design the CFRP layout to code.
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Surface Preparation
Grind and clean the concrete to expose sound substrate and achieve the required bond profile.
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CFRP Application
Prime, then bond carbon fabric or laminate with structural epoxy, working out voids for full contact.
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Protection & Verification
Apply protective coating, cure, and verify bond by tap-testing / pull-off as specified.
Techniques & Equipment
- Externally Bonded CFRP Fabric Flexural & shear
- Pultruded CFRP Laminates High-capacity flexural
- Near-Surface-Mounted (NSM) Bars Where cover allows
- Structural Epoxy Bonding EN 1504-4 materials
- Pull-Off Bond Testing Post-install QC
Technical Specifications
| Design Guide | ACI 440.2R / fib Bulletin 14 |
|---|---|
| Bonding Material | EN 1504-4 |
| Reinforcement | Carbon-fibre fabric / laminate |
| Applications | Flexural, shear, axial confinement |
| Verification | Pull-off / tap testing |
Frequently Asked Questions
When an existing element must carry more load, has lost reinforcement to corrosion, or has been weakened by a new opening — and demolition is undesirable.
The gain is engineered case by case to ACI 440.2R; CFRP can significantly increase flexural and shear capacity within the limits set by the existing member.
Yes — carbon fibre does not corrode, and with correct surface preparation, bonding and protective coating the system is designed for long-term service.
Minimal — it is thin, light and applied in place, so the structure stays largely in use with no major demolition.
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