Construction Joints are placed in the concrete to compensate for the expansion and contraction of the material due to weather conditions. In order to avoid cracks, concrete installers will predict where the concrete will crack and how it will expand.\n
Based on their assessment, they will create forming, saw, tool, and place joint formers at different locations. These pre-formed cracks will help improve the overall performance of the concrete surface and ensure it has room to expand and contract without causing any harm to the surrounding structures.
These joints are placed to keep new concrete in place. They’re essentially screed rails made from wood, metal, or plastic and are placed during the pouring and finishing of concrete. The construction joints will allow you to pour the concrete in steps and control the slab placement according to your requirements. You can also use construction joints as contraction joints if you plan the placement well.