High strength carbon fibre plate
Extruded carbon fibre laminate for external structural stengthening
durafibre CFP is a ready-to-use epoxy pre-impregnated, extruded laminated carbon fibre plate. The carbon fibre laminate system offers outstanding tensile strength for bending loads,deformation, or increased stress and E-modulus for the structural strengthening of reinforced concrete elements.
- Increase load requirements:
Increased live loads
Heavy machinery installed in buildings
External reinforcing flat structures like slabs and beams
Building/structure use change
- Damage to structures through:
Corrosion of steel
Durability reduction by fire
Reduced stress in rebar
Prevention of further cracking
Suppression of crack width due to expansion
Satisfy design change requirements
- Design or construction defects/changes:
Structures having insufficient reinforcing
Structures with insufficient element dimensions
New openings in structure to accommodate changes
- Carbon fibre offers exceptional tensile strengths and E-Modulus
- Light weight, hardly no additional weight to the structure
- Increase in bending moment
- Composite system offer outstanding fatigue properties
- Quick turn-around time for repair work
- Corrosion resistant
- Reliable structure repair system
- Long lengths reduce additional joint work
- Quality and performance is uniform due to pre-lamination of the carbon fibre with epoxy resin
- No multiple layers need to be applied
- Can be coated
Typical Physical Properties
|Fibre type||High strength carbon|
50 and 100
50 and 100
|Tensile strength (ASTM D 3039)||> 3 000 MPa|
|Elongation at break||> 1.8%|
|E-Modulus (ASTM D 3039)||> 165 GPa|
|Mean tensile strength at break||3 050 MPa|
|Elongation at break||> 1.7%|
Mass/100 m (W = width and T = thickness)
50 mm (W) x 1.2 mm (T)
Cross sectional area
|Shelf life||Unlimited (store clean and dry)|
See durafibre CFP adhesive data sheet
Spalling repairs required:
Request the relevant spalling methodology.
durafibre CFP carbon fibre plates:
When opening the 100 metre roll, take care when loosening the ties all at once, this may cause a hazard due to rapid unwinding. Carefully cut the length of durafibre CFP plate to the required length using a diamond cutter or file saw. Wear goggles, dust mask, gloves and other appropriate PPE.
Cleaning the durafibre CFP carbon plates:
Clean the rough side of the carbon plate that will be in contact with the durafibre CFP adhesive and concrete by thoroughly wiping using abe® thinners No. 3 and allow it to dry, cleanliness must be maintained prior to bonding the durafibre CFP plates.
Prevailing weather conditions must be taken into account. Thoroughly mix the durafibre CFP adhesive and apply the adhesive on the concrete surface using a rubber spatula 1 mm thick to enhance the adhesion properties. Also apply the mixed adhesive to the ground side of the carbon plate. The adhesive coat shall be 4 mm thick in total.
Attach the adhesive-coated carbon plate to the concrete surface by pressing. Using a rubber roller apply enough pressure to allow the excess adhesive to exude between the carbon plate panels.
Remove the excess adhesive with a rubber spatula or dry cloth.
Carbon plate attached to the concrete surface should be left alone for at least three to four hours for sufficient curing to take place.
Note: Ensure adequate ventilation is available and prohibit open flames at the site. Protect from any wind pressure in tunnels or underground rail tracks that may cause the carbon plate panels to detach from the concrete surface before curing. Keep the panels physically supported until fully cured. Grind the first surface layer of carbon plates applied to reinforce slabs in a cross before applying the second layer.
Consultation with a structural engineer is imperative when the design criteria and application configurations are required subject to load calculations of the various elements that are under consideration.
Protect outdoor applications from rain, dust and debris using a suitable plastic covering.
Allow the carbon plate adhesive to cure for 24 hours or more (increase the curing time when low ambient temperature is experienced).
Note: Discard mixed adhesive when its useful life is over. No solvent of whatever type should be mixed in with the adhesive. The use of any thinning solvent, coating roller or brush is strictly prohibited.
The longer the adhesive is mixed at a higher temperature, the shorter will be its useful life. The useful life varies depending on the site conditions. Discard a mixed batch of adhesive when its rising temperature or viscosity has made it difficult to apply, as this means its useful life is over.
Coverage – Approximate Adhesive Consumption
100 m length x 50 mm wide = 20 L
100 m length x 100 mm wide = 40 L
These calculations are theoretical and exclude waste or surface profile irregularities.
Cleaning of tools and equipment use abe® super brush cleaner before the epoxy has cured. Cured material will have to be removed mechanically.
Protection on Completion
All applied product needs to be protected for at least 24 hours against the weather and high winds.
It is desirable to apply a polyurethane paint to the carbon fibre plate system for protection against ultra-violet rays and or subsequent environmental conditions. See “coating types”.
Painting should be performed in not less than 24 hours after the application of the carbon plate lay-up process.
UV protection – abecote® tough PU paint
Damp/wet conditions – duraflex®, abe® silocoat
Submerged conditions – duraflex®
Chemical spill environments – abecote® SF 356 or SF 217
Temperature and Relative Humidity
durafibre CFP system should be applied at material temperatures between 12 °C and 18 °C and ambient temperatures of 5 °C to 30 °C. Temperatures should not fall below 5 °C in the 24 hours after application. Do not apply coating if the substrate temperature is at least 3 ºC (5 ºC is better) above dew point or highly humid conditions to cause condensation.
High strength epoxy extruded carbon fibre plates incorporating an epoxy adhesive system to be used for structural strengthening.
The system shall be durafibre CFP high strength carbon fibre plates including the durafibre CFP adhesive applied in accordance with the structural engineers detail and the recommendations of a.b.e.®
durafibre CFP is supplied in 100 m rolls.
50 mm wide x 1.2 mm thick (code: 12601169)
50 mm wide x 1.4 mm thick (code: 12602177)
100 mm wide x 1.2 mm thick (code: 12603173)
100 mm wide x 1.4 mm thick (code: 12604178)
Handling & Storage
durafibre CFP has an unlimited shelf-life if kept in a dry store in its sealed package.
Health & Safety
durafibre CFP is a carbon fibre product therefore when cutting/handling suitable protection must be employed to avoid contact with skin and eyes, avoid inhalation of particles during processing by wearing dust masks. The use of gloves, eye protection and dust masks is advised. Immediately wash with water in the event of contact with skin. Splashes into eyes should also be washed immediately with plenty of clean water and medical advice sought.
This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot accept any liability for application – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied.
Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total
a.b.e.® has a wealth of technical and practical experience built up over the years in the company’s pursuit of excellence in building and construction