Armoured joints protect construction joints from damage with our armoured joints. Our armoured joints (properly called “leave-in-place joint systems”) offer four important benefits:

• They act as a permanent formwork, creating a secure boundary or day joint during the concrete pour.
• They allow the concrete slab to contract in a controlled way, to prevent random cracks occurring.
• They protect the construction joint arrises from impact damage once the building is in use, saving the expense of repair.
• They allow efficient load transfer between concrete slabs, for a stable and durable floor.

How armoured joints work

Armoured joints are used to create a boundary in which to contain a day’s concrete pour. As the concrete sets and contracts, the two sides of the joint (held together with frangible rivet connectors) are gradually pulled apart horizontally. Dowels fixed through the centre stop the slabs moving vertically nd allow for load transfer between the two sections of the floor. Once the floor has contracted, the gap between the two sides can simply be filled with a suitable joint sealant

The value-engineered approach

Traditional-style armoured joints only account for about 5% of the material cost of the floor slab. Joints are a small part of the overall cost – but can make an enormous difference to the floor’s lifetime performance. By using a combination of Permaban armoured joints you can create an optimum specification without a significant cost increase. For example, using Signature and Eclipse together in a specification will provide superior joint protection, but with a less than 1% increase in material cost. Using Signature alone means only a 3% increase in material cost. But remember that any additional up-front costs will be more than recouped over the life of the building, due to reduced floor and vehicle maintenance costs. The building’s versatility, and saleability, can also be improved.

Speak to our technical advisers for further guidance on value engineering using Permaban joints.

 Permaban Wave

Permaban Wave® is the versatile, impact-free plate joint that’s easy to install. Its triple curve design has no straight edges, so MHE crosses smoothly in any direction. The narrow top plate aids stability and levelling. An extension plate allows installers to choose the correct joint height, then use excess stock on the next job site.

Permaban Signature

Permaban Signature® is an armoured joint like no other. The clever half-hexagon shape prevents the wheels of materials handling vehicles from dropping into the gap between the two edges of the joint. Because there’s no impact, there’s no damage to either the joint or the truck. Winner of Most Innovative New Product, UK Concrete Show 2012.

Permaban Eclipse

Eclipse is a tough, hard-working armoured joint for heavy-duty applications. A high-tensile steel triangular section reinforces the top edge of the joint, so it can withstand heavy and persistent traffic. The full-height divider plate adds to its strength and rigidity, making Eclipse a versatile and economical alternative to a traditional-style joint. Galvanised as standard for internal and external use.

Permaban Alpha Joint Classic 4010

Well known as the ‘industry standard’ armoured joint, this remains a popular choice for many projects worldwide due to its strength and versatility. It is now supplied with Permaban’s Universal Divider Plate, with pre-set positions which allow installers to choose the correct joint height, then use excess stock on the next job site.

Permaban Beta Joint Range

Tough and sturdy, yet remarkably light – the Beta Joint range offers medium-duty construction joint protection in concrete floors and pavements. Continuous concrete ties ensure firm anchoring into the concrete along its entire length. Choose BetaExpansion (pictured) for external slabs; and BetaEdge if using traditional removable timber or steel formwork.

Permaban Signature Slide

No impact, no damage, no gap! SignatureSlide’s clever double-plate top ensures no gap is exposed when the joint opens. Designed to cover larger gap sizes, it is ideal for jointless floors, post-tensioned floors and cold/freezer stores; and also where debris or substances might enter the gap. Continuous concrete ties ensure firm anchoring.

Permaban Dowel System is a type of dowel bar that is used in the construction of concrete floors and performs an important job of load transfer. Dowel bars are used to transfer loads between adjacent concrete slabs and help to maintain proper alignment and levelness of the slabs.  Because a concrete slab only has around 50% of its load-bearing capacity at the edges, dowels are needed to support the slab, help bear and transfer weight, and permit controlled movement of the two adjacent slabs (technically called the “approach and leave slabs”).

The Permaban Dowel System is designed to provide a durable and long-lasting solution for concrete construction joints. The system is made up of two components: the dowel bars and the sleeves.

The dowel bars are made from high-strength steel and are available in a variety of sizes and lengths to suit different applications. The sleeves are made from a high-density polyethylene material and are used to hold the dowel bars in place during installation.

The Permaban Dowel System is easy to install and requires minimal maintenance. The system is designed to provide maximum load transfer between adjacent concrete slabs while allowing for movement caused by changes in temperature or settling of the concrete.

The Permaban Dowel System is suitable for use in a wide range of industrial and commercial applications, including warehouses, distribution centers, and manufacturing facilities. It is designed to be a cost-effective solution that can improve the durability and performance of concrete floors.