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.
- Multifunctional fabric for use in many different strengthening applications
- Flexible and accommodating to 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 to 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 | |
| 10 rolls in cardboard box | ≥ 50 m | 100 mm |
4 rolls in cardboard box | ≥ 50 m | 300 mm |
| 2 rolls in cardboard box | ≥ 50 m | 600 mm |
Product Details
APPROVALS / STANDARDS
- 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)
Area Density
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.
Laminate Nominal Thickness
0.167 mm
Laminate Nominal Cross Section
167 mm2 per m width
Laminate Tensile Strength
| Average | Characteristic |
| 3,500 N/mm2 | 3,200 kN/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 % | (based on EN 2561) |
1.59 % | (based on 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 Sikadur®-330
| Primer layer | 0.4 – 0.6 kg/m2 |
| Fabric layers | 0.6 kg/m2 |
Please also refer to the relevant Method Statement for further information.
SUBSTRATE QUALITY
Minimum substrate tensile strength: 1.0 N/mm2 or as specified in the strengthening design.
Please also refer to the relevant Method Statement for 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.