How To Repair Expansion Joints In Concrete With Belzona

In this video, we demonstrate how to repair a concrete expansion joint. You will see how the joints edges are rebuilt and reconstructed, and how a new joint sealant is created.

An expansion joint is commonly located on such structures such as bridges, highways and sidewalks. An expansion joint is a mid-structure separation designed to absorb vibration, join objects, or allow movement. In structures, expansion joints can help absorb the expansion and contraction of concrete slabs as a result of temperature changes. Without expansion joints, the concrete can crack or distort. However, expansion joints on their own are susceptible to failure. A major issue is incompressible materials that lock the joints and create stresses that may cause concrete spalling or shattering. As a result, seals are frequently installed in expansion joints to prevent incompressible debris from entering the joint.