Key Joint Expanda Joint – Danley™


Key Joint Expanda Joint by Danley™

Danley™ Keyjoint Expanda™ supplied by InfraBuild Reinforcing is designed specifically to overcome slab alignment problems. Keyjoint Expanda™ comprises Danley™ Keyjoint fitted with 5mm close cell foam which provides for thermal expansion of adjacent slabs. This allows expansion of the concrete, giving a high performing, cost effective expansion system with a joint finish. Similar to Keyjoint, Keyjoint Expanda™ is self-supporting and height adjustable utilising the Danley™ drive-n-twist stake system.

Keyjoint Expanda™ is available in standard 3m lengths features knock-out holes for 16mm or 20mm square dowels every 150mm. This provides flexibility in centre spacings at 150mm, 300mm, 450mm and 600mm as standard. The Knock-out holes suit 16mm and 20mm Dowelmaster® sleeves .

Typical Uses

  • Ideal for Dowelmaster® and square dowels
  • Allows for continuous concrete slab pours


  • Provides the same benefits as key joint as well as expansion joint capability
  • One side faced with 5mm closed cell foam
  • Multiple cappings available
  • Drive-and-twist stake system
  • Knockouts allow use of 16 and 20 mm Dowelmaster® sleeves and square dowels

To find out more about the Danley™ Key Joint Expanda products stocked at your local InfraBuild Reinforcing please contact your nearest branch.


Product Code Height (mm)Length (m)
EXPKJ3100S 1003
EXPKJ3125S 1253
EXPKJ3150S 1503
EXPKJ3200S 2003
EXPKJ3250S 2503

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