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AlphaJoint Classic 4010

AlphaJoint Classic 4010

The original – the Classic – AlphaJoint.  Well known as the ‘industry standard’ armoured joint, this remains a popular choice for many projects due to its strength and versatility.



  • Heavy duty joint arris protection.
  • Shear studs securely anchor the joint into the slab along its length.
  • Resistant to twisting caused by the impact of wheeled traffic.
  • Efficient load transfer between adjacent concrete slabs with plate dowels.
  • Allows controlled horizontal slab movement, preventing random cracking.
  • Eliminate vertical movement between slabs during concrete contraction, for a level floor surface.
  • Supplied as one unit for easy handling and installation - the two sides are connected with frangible rivets which separate naturally after installation.
  • Also available with Permaflex ‘T’ tape system pre-installed as special order – contact our sales team for more information.



  • Suitable for a wide range of internal applications, but particularly heavy duty ones - such as industrial buildings and waste transfer stations.
  • Ideal for free movement areas, but also suitable for most other areas
  • Suitable for use with most vehicle types.  
  • Suitable for larger joint openings, up to 30mm.


Important note: Alphajoint variant with extra rigidity

We also provide an AlphaJoint Classic 4010 version with additional continuous concrete ties (see picture, right).  This gives added reinforcement and extra rigidity for an easier installation.  This variant will be supplied automatically where the height of the product is above 225mm.  Full technical details for this variant can be found on the AlphaJoint Classic 4010 specification sheet, in our Downloads section.

For heights of 225mm or less, the standard AlphaJoint Classic 4010 version will be supplied.  The enhanced reinforcement version is available on request.


Download our specification sheet for full information.


All our products comply with the Construction Products Regulation (Regulation (EU) No. 305/2011), and hold appropriate CE marking.

product use

The lists below show where we recommend this product can be used. The bold text shows where the product is best suited.

AlphaJoint Classic 4010 with 225mm caption

AlphaJoint Classic 4010 with extra reinforcement, supplied for heights above 225mm

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