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SikaWrap®-230 C

Woven unidirectional carbon fibre fabric, designed for structural strengthening applications as part of the Sika® strengthening system

SikaWrap®-230 C is a unidirectional woven carbon fibre fabric with mid-range strength, designed for installation using the dry or wet application process. Suitable for use in hot and tropical climatic conditions.

  • Manufacturedwith heat-set weft fibres to keep the fabric stable
  • 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.)
  • Available in different widths for optimum utilisation
  • Low density for minimal additional weight
  • Extremely cost effective in comparison to traditional strengthening techniques
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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

  • Manufacturedwith heat-set weft fibres to keep the fabric stable
  • 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.)
  • Available in different widths for optimum utilisation
  • 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

Sustainability / Certifications / Approvals

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.
Product Information

Construction

Fibre orientation0° (unidirectional)
WarpBlack carbon fibres 99 %
WeftWhite 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

0.129 mm (based on fibre content)

Area Density

235 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 information

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®-230 C

For detailed information on Sikadur®-330, together with the resin and fabric application details, please refer to the Sikadur®-330 Product Data Sheet and the relevant Method Statement.
Technical Information

Laminate Nominal Thickness

0.129 mm

Laminate Nominal Cross Section

129 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

Characteristic

452 kN/m

413 kN/m

Tensile Stiffness

Average

Characteristic

29.0 MN/m

28.4 MN/m

29.0 kN/m per ‰ elongation

28.4 kN/m per ‰ elongation

Average

Characteristic

28.4 MN/m

27.1 MN/m

28.4 kN/m per ‰ elongation

27.1 kN/m per ‰ elongation

 

Application

Consumption

Consumption

Dry application with Sikadur®-330

First layer including priming layer

0.8 – 1.2 kg/m2

Following layers

0.7 kg/m2

Wet application with Sikadur®-300

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.
Application steps

SUBSTRATE QUALITY

Minimum substrate pull-off 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.

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