Joint free slabs is a patented system for slab on grade pavements constructed using our innovative method of catering for concrete shrinkage. In traditional slabs on grade control joints are installed for this purpose. Joint Free Slabs Pty Ltd has developed a crack inducer grid that eliminates the need for all control joints. The joint free slabs crack inducer grid consists of plastic tubes and four way junctions that are assembled on site and installed on the ground, their primary purpose being to induce a closely spaced network of fine cracks throughout the entire length and breadth of the slab. With this system vast areas of slab on grade can be constructed much faster than is possible using traditional details, and there is the potential for sizeable direct savings in both the construction cost and the construction time. Added to this, the aesthetics of the finished floor are superior and the cost of ongoing maintenance is significantly reduced. All in all, joint free slabs can be