SikaWrap®-300 C
Woven unidirectional carbon fibre fabric, designed for structural strengthening applications as part of the Sika® strengthening system
SikaWrap®-300 C is a unidirectional woven carbon fibre fabric with mid-range strengths, designed for installation using the dry or wet application process. Suitable for use in hot and tropical climatic conditions.
- Multifunctional fabric for use in many different strengthening applications
- Flexible and accommodating of different surface planes and geometry (beams, columns, chimneys, piles, walls, soffits, silos etc.)
- Low density for minimal additional weight
- Extremely cost effective in comparison to traditional strengthening techniques
Usage
Structural strengthening of reinforced concrete, masonry, brickwork and timber elements or structures, to increase flexural and shear loading capacity for:- Improved seismic performance of masonry walls
- Replacing missing steel reinforcement
- Increasing the strength and ductility of columns
- Increasing the loading capacity of structural elements
- Enabling changes in use / alterations and refurbishment
- Correcting structural design and / or construction defects
- Increasing resistance to seismic movement
- Improving service life and durability
- Structural upgrading to comply with current standards
Advantages
- Multifunctional fabric for use in many different strengthening applications
- Flexible and accommodating of different surface planes and geometry (beams, columns, chimneys, piles, walls, soffits, silos etc.)
- Low density for minimal additional weight
- Extremely cost effective in comparison to traditional strengthening techniques
Packaging
Fabric length per roll | Fabric width |
≥ 100 m | 500 mm |
Product Details
APPROVALS / CERTIFICATES
- Poland: Technical Approval ITB AT-15-5604/2011: Zestaw wyrobów Sika CarboDur do wzmacniania i napraw konstrukcji betonowych.
- Poland: Technical Approval IBDiM Nr AT/2008-03-0336/1, Płaskowniki. pręty, kształtki i maty kompozytowe do wzmacniania betonu o nazwie handlowej: Zestaw materiałów Sika CarboDur® do wzmacniania konstrukcji obiektów mostowych.
- USA: ACI 440.2R-08, Guide for the Design and construction of Externally Bonded FRP Systems for strengthening concrete structures, July 2008.
- UK: Concrete Society Technical Report No. 55, Design guidance for strengthening concrete structures using fibre composite material, 2012.
Construction
Fibre orientation | 0° (unidirectional) |
Warp | Black carbon fibres 99 % |
Weft | White thermoplastic heat-set fibres 1 % |
Fibre type
Selected mid-range strength carbon fibres
Shelf life
24 months from date of production
Storage conditions
Store in undamaged, original sealed packaging, in dry conditions at temperatures between +5 °C and +35 °C.
Protect from direct sunlight.
Dry fibre density
1.82 g/cm3
Dry fibre thickness
0.167 mm (based on fibre content)
Mass per area
304 g/m2 ± 10 g/m2 (carbon fibres only)
Dry fibre tensile strength
4 000 N/mm2 | (ISO 10618) |
Dry fibre modulus of elasticity in tension
230 000 N/mm2 | (ISO 10618) |
Dry fibre elongation at break
1.7 % | (ISO 10618) |
System structure
The system build-up and configuration as described must be fully complied with and may not be changed.
Concrete substrate adhesive primer | Sikadur®-330 |
Impregnating / laminating resin | Sikadur®-330 or Sikadur®-300 |
Structural strengthening fabric | SikaWrap®-300 C |
For detailed information on Sikadur®-330 or Sikadur®-300, together with the resin and fabric application details, please refer to the Sikadur®-330 or Sikadur®-300 Product Data Sheet and the relevant Method Statement.
Design nominal thickness
0.167 mm
Design nominal cross section
167 mm2 per m width
Laminate tensile strength
Average | Characteristic |
3 500 N/mm2 | 3 200 N/mm2 |
Laminate modulus of elasticity in tension
Average | Characteristic |
225 kN/mm2 | 220 kN/mm2 |
Average | Characteristic |
220 kN/mm2 | 210 kN/mm2 |
* modification: sample with 50 mm
Values in the longitudinal direction of the fibres
Single layer, minimum 27 samples per test series
Laminate elongation at break in tension
1.56 % | (EN 2561) |
1.59 % | (ASTM D 3039) |
Tensile resistance
Average | Characterstic |
585 N/mm | 534 N/mm |
Tensile stiffness
Average | Characteristic |
37.6 MN/m | 36.7 MN/m |
37.6 kN/m per ‰ elongation | 36.7 kN/m per ‰ elongation |
Average | Characteristic |
36.7 MN/m | 35.1 MN/m |
36.7 kN/m per ‰ elongation | 35.1 kN/m per ‰ elongation |
Application
Consumption
Dry application with Sikadur®-330
First layer including primer layer | 1.0 - 1.5 kg/m2 |
Following layers | 0.8 kg/m2 |
Wet application with Sikadur®-300
Primer layer | 0.4 - 0.6 kg/m2 |
Fabric layers | 0.6 kg/m2 |
Note: Consumtion is for standard application only. Rough or uneven substrate surfaces, loss and wastage may lead to a higher consumption.
Please refer to the relevant Method Statement for further information.
SUBSTRATE QUALITY
Minimal substrate tensile strength: 1.0 N/mm2 or as specified in the strengthening design.
Please also refer to the relevant Method Statement or further information.
SUBSTRATE PREPARATION
Concrete must be cleaned and prepared to achieve a laitance and contaminant free, open textured surface.
Please also refer to the relevant Method Statement for further information.