Product Data Sheet Show all documents

SikaWrap®-231 C IN

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

SikaWrap®-231 C IN is a unidirectional woven carbon fibre fabric made with high strength carbon fibres, designed for installation using the dry application process.

  • Manufactured with heat-set weft fibres to keep the fabric stable
  • 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
Product Data Sheet Show all documents

Usage

Structural strengthening of reinforced concrete, masonry, brickwork and timber elements or structures, to increase axial, 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

  • Manufactured with heat-set weft fibres to keep the fabric stable
  • 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

1 roll in cardboard box

≥ 50 m

500 mm

Colour

Black fabric

Product Details

Product Information

Chemical base

Carbon fibre

Construction

Fibre orientation

0° (unidirectional)

Warp

Black carbon fibres 95 %

Weft

Heat-set glass fibres 5 %

Fibre type

Selected high 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

1.80 g/cm3

Dry fibre thickness

0.127 mm (based on fibre content)

Area density

230 g/m2 ± 12 g/m2 (carbon fibres only)

Dry fibre tensile strength

4 900 N/mm2

(ISO 10618)

Dry fibre modulus of elasticity in tension

250 000 N/mm2

(ISO 10618)

Dry fibre elongation at break

2.1 %

(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 IN

Impregnating / laminating resinSikadur®-330 IN

Structural strengthening fabric

SikaWrap®-231 C IN

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

Laminate nominal thickness

0.127 mm

Laminate nominal cross section

127 mm2 per m width

Application

Consumption

Consumption

Dry application with Sikadur®-330 IN as primer and adhesive layer:

First layer fabric including primer and lamination

0.8–1.2 kg/m2

Following fabric layers

0.5–0.8 kg/m2

Note: Consumption is for standard application only. Rough or uneven substrate surfaces, fabrics crossings, loss and wastage can lead to a higher resin consumption.

  

Please also refer to the relevant Method Statement for further information.
Application steps

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.

Documents