Product Data Sheet Show all documents
Sika® CarboDur® BC

Sika® CarboDur® BC

Pultruded carbon fibre rods for structural strengthening as part of the Sika® CarboDur® system

Sika® CarboDur® BC rods are pultruded carbon fibre reinforced polymer (CFRP) laminates with a circular cross section, designed for strengthening concrete, timber and masonry.
Sika® CarboDur® BC rods are bonded into slots as near surface mounted reinforcement using Sikadur®-33, Sikadur®-330 or Sikadur®-30 epoxy resin based adhesives for normal application temperatures. Sikadur®-300 epoxy resin based adhesive is used for horizontal applications.
Sika® CarboDur® BC rods can also be used for anchoring SikaWrap® fabrics where positive attachment to concrete or masonry is required.
Refer to the relevant Product Data Sheet for more detailed information about each adhesive.

  • Non-corroding
  • Very high strength
  • Invisible once installed, no joints required
  • Excellent durability and fatigue resistance
  • Easy transportation
  • Lightweight, very easy to install
  • Smooth edges without exposed fibres as the result of production by pultrusion
  • Can accept traffic on the strengthened surface (rods not exposed)
  • No surface preparation / levelling of uneven substrates required
  • Improved resistance to fire (compared with externally bonded reinforcement)
  • Testing and Approvals available from many countries worldwide
Product Data Sheet Show all documents

Usage

Sika® CarboDur® BC rods are used to improve, increase or repair the performance and resistance of structures for: Increased Load Carrying Capacity:
  • Increasing the load capacity of floor slabs, beams and bridge sections
  • For the installation of heavier machinery
  • To stabilise vibrating structures
  • For changes in building use
Damage to structural elements due to:
  • Deterioration of the original construction materials
  • Steel reinforcement corrosion
  • Accidents (Vehicle impact, earthquakes, fire)
Improvement of serviceability and durability:
  • Reduced deflection and crack width
  • Stress reduction in the steel reinforcement
  • Improved fatigue resistance
Change of the structural system:
  • Removal of walls and / or columns
  • Removal of floor and wall sections to create access / openings
Resistance to possible events:
  • Increased resistance to earthquakes, impact or explosion etc.
To repair design or construction defects such as:
  • Insufficient / inadequate reinforcement
  • Insufficient / inadequate structural depth
Combination with other strengthening products:
  • Doweling applications
  • Anchoring of SikaWrap® fabrics

Advantages

  • Non-corroding
  • Very high strength
  • Invisible once installed, no joints required
  • Excellent durability and fatigue resistance
  • Easy transportation
  • Lightweight, very easy to install
  • Smooth edges without exposed fibres as the result of production by pultrusion
  • Can accept traffic on the strengthened surface (rods not exposed)
  • No surface preparation / levelling of uneven substrates required
  • Improved resistance to fire (compared with externally bonded reinforcement)
  • Testing and Approvals available from many countries worldwide

Packaging

Supplied in rolls of 100 m (BC 6) in non-returnable cardboard boxes, or cut to 12 m long bars (BC 8, BC 10, BC 12).

Colour

Carbon fibre reinforced polymer with an epoxy matrix, black.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Fib, Technical Report, bulletin 14: Externally bonded FRP reinforcement for RC structures, July 2001
Product Information

Shelf Life

Unlimited, provided the storage conditions are met.

Storage Conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures of max. +50 °C. Protect from direct sunlight.

Transportation: only in the original packaging, or otherwise adequately protected against any mechanical damage

Density

1.60 g/cm3

Dimensions

Type

Diameter

Cross sectional area

Sika® CarboDur® BC6

6 mm

28 mm2

Sika® CarboDur® BC8

8 mm

50 mm2

Sika® CarboDur® BC10

10 mm

79 mm2

Sika® CarboDur® BC1212 mm113 mm2

Fibre Volume Content

> 65 %
System information

System Structure

The system build-up and configuration as described must be fully complied with and may not be changed.
Structural Adhesive – Sikadur®-33, Sikadur®-330, Sikadur®-30.
Structural strengthening Carbon fibre plates – Sika® CarboDur® BC
For detailed information on the different structural adhesives, together with the application details, refer to the latest Product Data Sheets and the “Technical Information Manual Sika® CarboDur® Near Surface Mounted Reinforcement” Ref: 850 41 07
Technical Information

Laminate Tensile Strength

Mean value

3,100 N/mm2

5% Fractile value

2,900 N/mm2

Values in the longitudinal direction of the fibres

Laminate Tensile Modulus of Elasticity

Mean value

148,000 N/mm2

Values in the longitudinal direction of the fibres

Laminate Elongation at Break

Minimum value

> 1.70 %

Values in the longitudinal direction of the fibres

Glass Transition Temperature

> 100 °C

(EN 61006)

Application

Consumption

Consumption

Adhesive

Sika® CarboDur® BC6

≤ 0.12 kg/m
Sika® CarboDur® BC8≤ 0.18 kg/m

Sika® CarboDur® BC10

≤ 0.24 kg/m

Sika® CarboDur® BC12

≤ 0.32 kg/m
Groove size guidance for width and depth should be 1.5 x rod diameter.

 

Application steps

SUBSTRATE PREPARATION

To prepare the concrete use an appropriately sized diamond saw and blade. The concrete should be checked for the prescence
of existing reinforcing steel, steel tendons, embedded ducts, or other materials within the substrate. Care must be taken not to cut through any of these components. As a guide,bonding grooves should be cut with a depth and width of 1.5 x rod diameter.  The surface must be clean and sound. It may be dry or damp, but free of standing water and frost. Remove dust, laitance, grease,or other foreign particles that could affect adhesion of the adhesive to the surfaces of the cut groove, together with any damaged concrete.
Immediately prior to adhesive application, clean the cut groove with high pressure water and remove the excess water with oil-free compressed air.

Refer to the “Technical Information Manual Sika® CarboDur® Near Surface Mounted Reinforcement” Ref: 850 41 07 for further information.

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