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Connolly® Expansion Joint System


Connolly® Expansion Joint System

Connolly® Expansion Joint supplied by InfraBuild Reinforcing are a roll formed galvanised steel section with 10mm cross linked foam to provide a leave in place formwork that allows for joint expansion. The profile is fixed in place using the patented peg and wedge system.

The EXJ has pre-formed holes which allow it to be used in conjunction with Connolly Universal Dowel Sleeves (UDS). The EXJ profile is available in 3m length for slab thicknesses from 100mm to 200mm. Included in the system are dowels, dowel sleeves, pegs and wedges. Lengths without dowels, dowel sleeves, pages and wedges are also available.

Typical Uses

  • Expansion joints in slab-on-ground applications
  • Shear load transfer through expansion joints


  • Pre-formed holes allow for use with Connolly Universal Dowel Sleeves (UDS)
  • Rigid connection between Expansion Joint and dowel sleeve through patented twist-fix feature
  • Provides expansion capacity over the full depth of the slab
  • Permanent capping and rebate mould available
  • Galvanized coating for corrosion protection
  • Patented Wedge fixing mechanism allows fast and accurate height adjustment
  • Additional stiffening ribs (EXJ125, EXJ150 and EXJ200) to ensure straighter joints
  • Can be used to screed off which makes getting the right level quick and easy

To find out more about the Connolly Key Joint Expansion Joint System stocked at your local InfraBuild Reinforcing please contact your nearest bar shop.

Product Code Component Height (mm) Length (m)
CEKJ3100 System 100 3
CEKJ3125 System 125 3
CEKJ3150 System 150 3
CEKJ3200 System 200 3
CEKJ3100L Length Only 100 3
CEKJ3125L Length Only 125 3
CEKJ3150L Length Only 150 3
CEKJ3200L Length Only 200 3

dowel sleeves, pegs and wedges are not included with length only products codes.