"tooled joints" refer to specific types of joints in concrete work that are created using a tool to shape and finish the joint. These joints are typically used in concrete slabs, pavements, and other flatwork to control cracking and to allow for slight movements due to temperature changes, shrinkage, or other factors.

Tooled joints are created by pressing a tool into the surface of the fresh concrete before it has fully set. This tool, often a groover or jointer, forms a groove or indentation in the concrete. The depth and width of the joint can vary depending on the specifications of the project and the expected stresses on the concrete.

The primary purposes of tooled joints in construction include:

1. Crack Control: By creating a weakened plane in the concrete, tooled joints help control where cracks will occur, directing them to the joint rather than allowing random cracking across the surface.

2. Aesthetic Appeal: Tooled joints can provide a neat and uniform appearance to concrete surfaces, enhancing the overall look of the finished project.

3. Structural Integrity: Properly placed tooled joints can help maintain the structural integrity of concrete surfaces by allowing for controlled movement and reducing the risk of uncontrolled cracking.

In Australian construction, as in other regions, the use of tooled joints is guided by industry standards and best practices to ensure durability and performance of the concrete structures.