SikaWrap®-230 C
Carbon fibre, unidirectional, woven, mid-strength fabric with a fibre area density of 235 g/m2 designed for dry or wet application
SikaWrap®-230 C is a unidirectional woven carbon fibre fabric. The Product is made of mid-range strength carbon fibres with an area density of 235 g/m2. The fabric is designed for installation using the dry or wet application process.
- Improves the service life of a structure
- Manufactured with thermo-welded 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 (such as beams, columns, chimneys, piles, walls, soffits and silos)
- Available in different widths for optimum utilisation
- Low density for minimal additional weight
Usage
SikaWrap®-230 C is used as a reinforcement fabric for externally bonded structural strengthening systems on concrete, masonry and wooden substrates. Externally bonded structural strengthening systems are used for:- Increasing the flexural and shear loading capacity of elements and structures
- Enhancing the load-carrying capacity or ductility of structural members in compression
- Replacing missing steel reinforcement
- Structural upgrading of weak concrete elements or structures
- Improving impact resistance
- Passive strengthening for seismic event protection
- A specialist structural engineer must be consulted for any structural strengthening design calculation.
- The Product may only be used by experienced professionals.
Advantages
- Improves the service life of a structure
- Manufactured with thermo-welded 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 (such as beams, columns, chimneys, piles, walls, soffits and silos)
- Available in different widths for optimum utilisation
- Low density for minimal additional weight
Packaging
Rolls, 300 mm wide | 50 m |
Rolls, 600 mm wide | 50 m |
Refer to the current price list for available packaging variations.
Product Details
ENVIRONMENTAL INFORMATION
Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4
APPROVALS / STANDARDS
Czech Republic: Technical Approval, ITC, Nr. STO-AO 224-1012/2020/a
Technical Approval, CSTB, Avis Technique 3.3/19-1005_V1
National Technical Assessment Sika CarboDur® kit, ITB, Approval No. ITB-KOT-2018/0414 v.2
Technical Approval Sika CarboDur, Nr. IBDiM-KOT-2019-0361 v.2
Technical Agreement, CTPC, No. 016-01/488-2022
Russia: Technical Certificate SikaWrap®, No. 6477-22
Test Report, University of Belgrade, No. 368/2019
Slovakia: Technical Assessment, TSUS, No. SK04-ZSV-2669
Technical Approval, DIT, No. N604R/19
Construction
Fibre orientation | 0° (longitudinal, unidirectional) |
Warp (longitudinal) | Black carbon fibre, 99 % |
Weft (transversal) | White thermoplastic heat-set fibre, 1 % |
Fibre Type
Selected mid-range strength carbon fibres
Shelf Life
24 months from date of production
Storage Conditions
The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Protect the Product from direct sunlight. Always refer to packaging.
Dry Fibre Modulus of Elasticity in Tension
230 kN/mm² | (ISO 10618) |
Dry Fibre Tensile Strength
4000 N/mm² | (ISO 10618) |
Dry Fibre Elongation at Break
1.7 % | (ISO 10618) |
Dry Fibre Thickness
0.129 mm
Area Density
(235 ± 10) g/m²
Dry Fibre Density
1.82 g/cm³
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 or laminating resin | Sikadur®-330 or Sikadur®-300 |
Structural strengthening fabric | SikaWrap®-230 C |
For detailed information on Sikadur®-330 or Sikadur®-300, together with the resin and fabric application details, please refer to the individual Product Data Sheets and the relevant Method Statement.
Laminate Nominal Thickness
0.129 mm
Laminate Nominal Cross Section
129 mm² per metre width
Laminate Tensile Strength
Mean | 3500 N/mm² |
5 % characteristic | 3200 N/mm² |
Mean | 3400 N/mm² |
Characteristic (ACI 440.2R) | 3100 N/mm² |
All values refer to the relevant design nominal thickness.
Tensile Resistance
Average | Characteristic |
452 kN/m | 413 kN/m |
Laminate Modulus of Elasticity in Tension
Mean | 225 kN/mm² |
5 % characteristic | 220 kN/mm² |
Mean | 220 kN/mm² |
All values refer to the relevant design nominal thickness.
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 |
Laminate Elongation at Break in Tension
Mean | 1.56 % |
5 % characteristic | 1.35 % |
Mean | 1.50 % |
Characteristic (ACI 440.2R) | 1.35 % |
Application
Consumption
DRY APPLICATION WITH SIKADUR®-330
First layer, including primer | 0.7–1.2 kg/m² |
Following layers | 0.5 kg/m² |
WET APPLICATION WITH SIKADUR®-300, PRIMER SIKADUR®-330
SikaWrap®-230 C | |
Primer | 0.4–0.6 kg/m² |
Fabric layers | 0.6 kg/m² |
SUBSTRATE QUALITY
Tensile adhesion strength of the substrate must be a minimum of 1.0 N/mm2 or as specified in the strengthening design. If necessary, verify this by applying a test area first.
Refer to the relevant SikaWrap® Method Statement for further information.
SUBSTRATE PREPARATION
Clean and prepare concrete to achieve a laitance-free, contaminant-free, open-textured surface.
Refer to the relevant SikaWrap® Method Statement for further information.
APPLICATION
IMPORTANT
Application by trained personnel
The application of this Product must only be carried out by an applicator that is trained or approved by Sika. The applicator must also be experienced in this type of application.
IMPORTANT
Strictly follow installation procedures
Strictly follow installation procedures as defined in Method Statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
IMPORTANT
Do not interchange different system components
SikaWrap® fabrics are coated to ensure maximum bond and durability with the Sikadur® adhesives, impregnating and laminating resins. To maintain and ensure full system compatibility, do not interchange different system components.
- IMPORTANT Never fold the fabric. Cut the fabric with special scissors, a razor knife or a box-cutter knife.
- Apply the SikaWrap fabric using the wet or dry application process. Refer to the relevant Method Statement for details on either the impregnating or laminating procedure:
850 41 02 Method Statement SikaWrap® manual dry application
850 41 03 Method Statement SikaWrap® manual wet application
OVERCOATING SIKAWRAP® FABRICS
SikaWrap® fabrics can be overcoated with a cementitious overlay or other coatings for aesthetic or protective purposes. The selection of the overcoating system depends on the exposure and project-specific requirements.
For additional protection from UV light in exposed areas, use one of the following:
Sikagard®-550 W Elastic
Sikagard®-675 W ElastoColor
Sikagard®-680 S Betoncolor
Sikagard®-5500