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Connolly Key Joint

Leave-in-place, continuous pour solution for slab on ground.

Connolly Key Joints are a continuous pour solution for contraction joints in slab on ground applications.

Connolly Key Joints are a roll-formed galvanised steel section used as a leave-in-place formwork to control shrinkage induced cracking. The profile is fixed in place using the patented peg and wedge system.

main product photo

Our unique tongue profile provides positive load transfer with minimal stepping. For higher load applications the preformed knock-outs allow Key Joints to be used in conjunction with Connolly Universal Dowel Sleeves (UDS). The Universal Dowel Sleeves are installed in the steel section using the patented twist-fix feature.

Key Joints are available in 3 metre lengths for slab thicknesses from 100mm to 200mm.

Cappings are available to be used with Connolly Key Joints.

Features:

  • Enables continuous pours
  • 3 different profile heights
  • Knockouts to accommodate a range of dowel sizes
  • Patented wedge fixing mechanism allows fast and accurate height adjustment
  • Additional stiffening ribs to ensure straighter joints
  • Galvanised coating for corrosion protection
  • Can be used to screed off which makes getting the right level quick and easy
  • Cappings available
  • Minimise liability risks from slip and trip claims​

 

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Technical specifications

Specifications

Product KJ100 KJ150 KJ200
Description Keyjoint for 100mm slab Key Joint for 150mm slab Key Joint for 200mm slab
Slab Thickness (mm) 100 150 200
Profile Heights (mm) 90 135 180
Length (m)

Standard lengths 3 metres
Knock-out holes Round holes dia 21mm at 150mm centres Knock-out holes to suit UDS Sleeves at 150mm centres
Material Galvanised Z275
Pegs & Wedges Pack of 4 per 3m length
Peg Dimensions 8mm x 390mm 8mm x 390mm 8mm x 390mm
Downloads and resources
pdf
Connolly Key Joint Datasheet
pdf 716.8 KB
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pdf
Connolly Key Joint Installation Guide
pdf 291 KB
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