SikaWrap® Hex-103 C
SikaWrap® Hex-103 C is a high-strength, high-modulus, unidirectional carbon fibre fabric. Material is field laminated using Sikadur®-300 epoxy to form a carbon fibre reinforced polymer (CFRP) used to strengthen structural elements.
- Used for shear, confinement, seismic or flexural strengthening
- Flexible, can be wrapped around complex geometries
- High modulus of elasticity
- Lightweight
- Non-corrosive
- Alkali resistant
- Low aesthetic impact
Usage
Loading increases- Increasing the live loads in warehouses
- Increased traffic volumes on bridges
- Installation of heavy machinery in industrial buildings
- Vibrating structures
- Changes of building utilization
- Columns
- Masonry walls
- Aging of construction materials
- Vehicle impact
- Fire
- Removal of walls or columns
- Removal of slab sections for openings
- Insufficient reinforcements
- Insufficient structural depth
Advantages
- Used for shear, confinement, seismic or flexural strengthening
- Flexible, can be wrapped around complex geometries
- High modulus of elasticity
- Lightweight
- Non-corrosive
- Alkali resistant
- Low aesthetic impact
Packaging
Roll, 635 mm x 91.4 m or 635 mm x 15.2 m (Roll, 25 in x 300 ft or 25 in x 50 ft)
| 635 mm x 91.4 m (25 in x 300 ft) | 635 mm x 15.2 m (25 in x 50 ft) |
Colour
BlackProduct Details
APPROVALS / CERTIFICATES
- Approved by ICBO ER-5558
- Approved by ICC ESR-3288 (certain conditions apply, consult Sika Canada)
- Product recognized by the British Columbia Ministry of Transportation (BC MoT)
Fibre Type
0° (unidirectional)
Shelf Life
Unlimited, if stored properly in original, unopenend, undamaged packaging.
Storage Conditions
Store dry between +4 °C and +35 °C (+40 °F and +95 °F).
Dry Fibre Thickness
0.34 mm ( 0.0135 in)
Area Density
1.8 g/cm3 (0.065 lb/in3)
Mass per Unit Length
611 g/m2 (18 oz/y2)
Dry Fibre Tensile Strength
3.79 GPa (5.5 x 105 psi)
Dry Fibre Modulus of Elasticity in Tension
234.5 GPa (34 x 106 psi)
Dry Fibre Elongation at Break
1.5 %
Laminate Nominal Thickness
1.016 mm (0.04 in)
Laminate Tensile Strength
| Average Value1 | Design Value2 |
| 1 248 MPa (1.81 x 105 psi) | 1 110 MPa (1.60 x 105 psi) |
| Average Value | Design Value |
| - | 11.2 kN/cm/ply (6.4 kips/in/ply) |
1 Average value of test series
2 Average value minus 3 standard deviations
Laminate Modulus of Elasticity in Tension
| Average Value1 | Design Value2 |
| - | 71 700 MPa (1.039 x 106 psi) |
1 Average value of test series
2 Average value minus 3 standard deviations
Laminate Elongation at Break in Tension
| Average value1 | Design value2 |
| 1.75 % | 1.45 % |
1 Average value of test series
2 Average value minus 3 standard deviations
Tensile Stiffness
| Average Value1 | Design Value2 |
| - | 728 kN/cm/ply (416 kips/in/ply) |
1 Average value of test series
2 Average value minus 3 standard deviations
Application
SUBSTRATE PREPARATION
Prepare the concrete surface by sandblasting or grinding (CSP 3 - 4 as per ICRI). Remove any dust or loose particles by means of an industrial vacuum cleaner. The surface must be clean, free from grease and oil and should be dry with the maximum substrate moisture content of < 4 % by weight. The surface to be bonded must be level, with no irregularities or protrusion > 0.5 mm (20 mil). Larger deviations must be levelled with Sikadur®-30, extended with (mix. ratio 1:1 parts by volume) oven-dried silica sand for thicknesses over 3 mm (1/8 in). The concrete adhesive strength must be verified following surface preparation by random pull-off testing (ACI 503R) at the engineer’s discretion. Minimum tensile strength, 1.5 MPa (218 psi) with concrete substrate failure. All corners of the structure must be rounded to a radius of 12 mm (1/2 in).
APPLICATION
Mixing
Consult Sikadur®-300 or 330 Product Data Sheet for information on epoxy resin.
Application
Cutting SikaWrap®
Fabric can be cut to appropriate length using commercial quality, heavy-duty scissors. Since dull or worn cutting implements can damage, weaken or fray the fibre, their use should be avoided.
Priming and Saturating
Prior to placing the fabric, prime concrete with Sikadur®-300 or Sikadur®-330 (Sikadur®-330 provides improved ‘tack’ adhesion, especially useful for overhead or similarly demanding applications). Sikadur® products may be spray, brush or roller applied. Saturate the SikaWrap® Hex-103 C using Sikadur®-300 epoxy. For best results on larger projects, the saturation process should be accomplished using an AMI Custom Fabric Saturator or similar device.
In special cases, where the size of the project does not justify the use of a saturator, the fabric may be saturated by hand using a roller or a spatula, prior to placement.
Protection and overlayment
At low temperatures and/or high relative humidity it may be longer than 12 hours for the surface may become slightly tacky (amine blush). Before laying up another layer of fabric or a coating, the tackiness must be removed. This can be accomplished by washing the surface with a wet sponge or rinsing with water. To avoid this phenomenon, use the SikaWrap® Peel Ply (please see below). To prevent exposure of the strengthening fabric to direct sunlight, top coat with Sikagard®-550 W Elastic, Sikagard® Color A50 Lo-VOC or other acceptable product. To adhere cementitious top coat systems to the cured epoxy, apply an additional layer of epoxy (15 - 20 mil) and blind (broadcast) the surface with silica sand to promote adhesion before coating.
SikaWrap® Peel Ply
If the product needs to be overcoated either with a coating (Sikagard®, etc.) or with a extra layer of fabric passing the overlay delay, apply the SikaWrap® Peel Ply immediately after the fabric installation, in order to protect and provide a textured surface (consult SikaWrap® Peel Ply Product Data Sheet for more informations).