What are key joints in concrete?

A key joint is a pre-manufactured device used to create control joints in concrete structures. As freshly-poured concrete begins to dry, it tends to shrink or contract. This contraction can lead to cracks or breaks in the surface of the concrete, or in tiles and other floor finishes installed over the slab.

How do you fill gaps between concrete slabs?

The best way to repair your expansion gap is to use purpose-designed foam backer rods and self-leveling caulk. Both materials are available in most home improvement stores. Cut your foam backer rods to the proper length for your expansion gap and press them into the gap.

What is expansion joint material?

Expansion joint material is a product used to fill, seal, fire rate, or provide a transitional surface over an expansion joint. An expansion joint is a gap designed into a building element to accommodate movement.

What are the types of expansion joint?

Types of Metal Expansion Joints

  • SINGLE UNRESTRAINED.
  • UNIVERSAL EXPANSION JOINT.
  • SINGLE TIED EXPANSION JOINT.
  • TIED UNIVERSAL EXPANSION JOINT.
  • PRESSURE BALANCED ELBOW EXPANSION JOINT.
  • GIMBAL EXPANSION JOINT.
  • HINGED EXPANSION JOINT.
  • IN-LINE PRESSURE BALANCED EXPANSION JOINT.

What is Connolly key joint?

Connolly Key Joint is a high quality preformed metal key joint for the control of shrinkage cracking and differential movement in concrete slabs. Peikko supplies a large selection of concrete connections and composite structures.

Why choose Connolly for concrete jointing?

Continuous pour jointing systems Having built a reputation for quality and innovation over the last 30+ years, Connolly is a leading name in slab-on-ground concrete jointing solutions. The range covers all applications, from the light-duty footpaths of the residential sector to the heavy-duty requirements of large-scale industrial warehouse slabs.

What is a Connolly expansion joint?

The Connolly Expansion Joint is a continuous pour solution for expansion joints in slab on ground applications. View Now Universal Dowels Connolly Universal Dowel Sleeves are available for round and square dowels, to allow for load transfer across joints in slab-on-ground applications. View Now Continuous pour jointing systems

What are Connolly crack inducers?

Connolly Crack Inducers are a roll-formed galvanized steel section available in 3m lengths. They are available in 25mm and 45mm heights and can be supplied with or without a permanent, flexible PVC capping. The permanent PVC capping is available in a range of colours and comes with a tear-off-strip to allow for a slurry-free finish.