Product Data Sheet Safety Data Sheet Show all documents

Sika® CarboShear L

L-Shaped carbon fibre shear links profiles for structural strengthening. Part of the Sika® CarboDur® System

Sika® CarboShear L carbon fibre shear links are corrosion resistant, designed for strengthening concrete structures in shear and to anchor Sika® CarboDur® plates at their ends. They are part of the Sika® CarboDur® CFRP Strengthening System. Sika® CarboShear L shear links are bonded as external reinforcement using Sikadur®-30 od Sikadur®-30 LP epoxy resin based adhesive.

  • Tested anchorage system.
  • Non-corroding
  • Very high strength and durability
  • Shear and bursting enhancement.
  • Well defined anchoring.
  • Lightweight.
  • Low overall thickness, can be over coated.
  • Easy transportation.
  • Easy installation – no heavy handling and installation equipment.
  • Outstanding fatigue resistance.
  • Minimal preparation of the shear links is required.
  • Minimal aesthetic impact.
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika® CarboShear L profiles are used as a reinforcement profiles for externally bonded shear structural strengthening systems on concrete for:
  • Increasing the shear load capacity of beams.
  • Reducing the stress on steel reinforcement
  • Changes in building use.
  • Deterioration of the original construction materials
  • Steel reinforcement corrosion
  • Improved fatigue resistance
  • Replacing missing steel reinforcement
  • Passive seismic retrofitting strengthening for to prevent brittle shear failure mechanism
  • Insufficient / inadequate reinforcement
Please note:
  • A specialist structural engineer must be consulted for any structural strengthening design calculation.
  • The Product may only be used by experienced professionals.
 

Advantages

  • Tested anchorage system.
  • Non-corroding
  • Very high strength and durability
  • Shear and bursting enhancement.
  • Well defined anchoring.
  • Lightweight.
  • Low overall thickness, can be over coated.
  • Easy transportation.
  • Easy installation – no heavy handling and installation equipment.
  • Outstanding fatigue resistance.
  • Minimal preparation of the shear links is required.
  • Minimal aesthetic impact.

Packaging

Packs of 20 links, or individual pieces

Colour

Carbon fibre reinforced polymer with an epoxy matrix, black.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Czech Republic: Technical Approval, ITC, Nr. STO-AO-1012/2020/a

  • Technical Agreement, CTPC, No. 016-01/488-2022

  • Slovakia: Technical Assessment, TSUS, No. SK04-ZSV-2669

  • 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

  • EMPA Test Report 169’219 E/1: Testing of CFRP shear strips on reinforced concrete T-beams T1 and T2, Swiss Federal Laboratories for Materials Testing and Research EMPA, 1998

  • EMPA Test Report 169’219 E/2: Testing of CFRP shear strips. Flexural beam T3, Swiss Federal Laboratories for Materials Testing and Research EMPA, 1998

  • EMPA Test Report 116/7: Shear strengthening with prefabricated CFRP L-shaped plates, Test beams S1 to S6, Swiss Federal Laboratories for Materials Testing and Research EMPA, 2002

 
Product Information

Fibre Volume Content

> 55 %

Shelf Life

4 years from date of production

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

Dimensions

Sika® CarboShear L is a CFRP L-shaped plate with a 90° bend.

Type

Leg length short

Leg length long

Width

Nominal thickness

4/20/50

200 mm

500 mm

40 mm

2 mm

4/30/70

300 mm

700 mm

40 mm

2 mm

4/50/100

500 mm

1000 mm

40 mm

2 mm

4/80/150

800 mm

1500 mm

40 mm

2 mm

The leg length can be cut to size (by saw, or preferably by diamond cutting disk). The inner radius of the bend zone is 25 mm for all sizes

Density

1.55 g/cm3
System information

System Structure

The system build-up and configuration as described must be fully complied with and may not be changed.

Resin adhesive

Sikadur®-30 or Sikadur®-30 LP

Structural strengthening carbon plates

Sika® CarboShear L

For detailed information on Sikadur®-30 or Sikadur®-30 LP, together with the resin and plate application details, please refer to the individual Product Data Sheets and Sika® CarboShear Externally Bonded Shear Reinforcement” Ref: 850 41 06.
Technical Information

Laminate Tensile Strength

Mean*

1850 N/mm²

5 % characteristic*

1700 N/mm²

*Values in the longitudinal direction of the fibres, considering a nominal thickness of 2 mm

Laminate Modulus of Elasticity in Tension

Mean*

95 000 N/mm²

*Values in the longitudinal direction of the fibres, considering a nominal thickness of 2 mm

Laminate Elongation at Break in Tension

Mean*

1.60 %

*Values in the longitudinal direction of the fibres, considering a nominal thickness of 2 mm

Glass Transition Temperature

> +100 °C

(EN 61006)

Application

Consumption

Consumption

Please refer to the “Method Statement Sika® CarboShear Externally Bonded Shear Reinforcement” Ref: 850 41 06.
Application steps

SUBSTRATE QUALITY

SIKA® CARBOSHEAR PROFILES EXTERNALLY BONDED TO THE CONCRETE SURFACE

Recommended minimum concrete pull-off strength after surface preparation:

  • Mean: 2.0 N/mm2

  • Minimum: 1.5 N/mm2

The effective concrete pull-off strength after surface preparation has to be verified.

Concrete must generally be older than 28 days (dependent on curing conditions and the type of concrete).

SUBSTRATE PREPARATION

Clean and prepare the concrete to achieve a laitance-free, contaminant-free, open-textured surface.

Please refer to the “Method Statement Sika® CarboShear Externally Bonded Shear Reinforcement” Ref: 850 41 06.

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

Exposure to UV or weathering

The Product is not resistant to permanent UV exposure or weathering.

  1. Contact Sika Technical Services for detailed advice.

Maximum service temperature

Note: Maximum permissible continuous service temperature is approximately +50 °C. refer to the “Method Statement Sika® CarboShear Externally Bonded Shear Reinforcement” Ref: 850 41 06.

Please refer to the relevant Product Data Sheets and method statement:

  • The Product Data Sheet for Sikadur®-30

  • The Product Data Sheet for Sikadur®-30 LP

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