Armoured Joints

Type A

3
6
5
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Our armoured joints, properly called “leave-in-place joint systems”, protect construction joints from damage.



  • Act as a permanent formwork, creating a secure boundary or day joint during the concrete pour.
  • Allow the concrete slab to contract in a controlled way, to prevent random cracks occurring.
  • Protect the construction joint arrises from impact damage once the building is in use, saving the expense of repair.
  • Allow efficient load transfer between concrete slabs, for a stable and durable floor.
  • Functions of Armoured Joint
  • Provide easy to install boundary to the concrete pour.
  • Protect joint arris against damage from materials handling equipment.
  • Provide mechanism for accurate alignment of load transfer devices.



Model Expansion Joint Height (mm) Plate Dowel Thickness (mm) Plate Dowel Spacing (mm) Length (mm) Correspondent to Slab Depth (mm)
YAJ-35-3000 35 - --- 3000 Edge Protection
YAJ6-100-3000 100 6 500 3000 110-145
YAJ6-125-3000 125 6 600 3000 135-170
YAJ6-150-3000 150 6 500 3000 160-195
YAJ6-180-3000 180 6 500 3000 190-225
YAJ6-210-3000 210 6 600 3000 220-245
YAJ10-150-3000 150 10 500 3000 160-195
YAJ10-180-3000 180 10 500 3000 190-225
YAJ10-210-3000 210 10 600 3000 220-225