Random cracking is one of the most costly and frustrating issues contractors face. The Husqvarna Soff-Cut system minimizes the risk of random cracking through timed cutting, ensuring control joints are part of the finishing process. This system focuses on making Ultra Early Entry™ cuts while the concrete is in the Green Zone™—a crucial window of 1–2 hours after finishing, before the concrete sets completely.
The Soff-Cut system is the only system that allows contractors to place control joints when the concrete needs relief the most. By making cuts during this early stage, contractors can significantly reduce the chance of random cracking.
Follow these best practices to minimize the risk of random cracking and ensure quality results:
- Choose the Right Equipment - consider the size and scope of the project when selecting the appropriate machine(s) and diamond tooling for the job. The right tools ensure efficiency and precision.
- Check engine Components - before starting, inspect the machine to confirm that the engine and other components are in optimal condition for peak performance.
- Replace the Skid Plate and Blade - always replace the skid plate with each new blade. This prevents chipping and spalling - maintaining the quality of the cuts.
- After Blade Change: Check Blade Block Operation - after replacing the blade, ensure the blade block is operating smoothly by plunging the pistons up and down. This step ensures the blade block keeps consistent pressure on the concrete surface for accurate, quality cuts.
- Detect the Green Zone - to determine if the concrete is in the Green Zone, gently touch, step, or roll the saw onto the slab. If an impression appears, the slab isn’t quite ready. Wait and retest in 15-minute intervals.
- Snap Chalk Lines - once the Green Zone is confirmed, use snapping chalk lines to mark the control joint layout, ensuring precise placement.
- Prevent Airborne Dust - since the concrete is still hydrating and not fully set, connect the Soff-Cut machine to a dust extractor to minimize airborne dust during the cutting process.
- Break-in the Blade - operate the Soff-Cut saw at half the normal forward speed for approximately 100 lineal feet to allow the blade to open up and expose the diamonds. This will also allow the blade to remain cool, give a faster cut and better blade life.
- Avoid Stepping on New Cuts - new control joints are fragile at this stage. Avoid stepping on them, as additional pressure could cause the joints to collapse.
- Insert Joint Protectors - once all four points of an intersection are cut, apply joint protectors to reinforce the joint. Using multiple protectors strengthens the concrete and helps prevent damage.
- Transport and Storage - transport and store the saw without a blade attached, but always with a skid plate attached.
By following these best practices, contractors can significantly reduce the likelihood of random cracking, ensuring a durable, high-quality finish for every project.
To find the right machine for your application, connect with one of our experts and request a demo here >> View Soff-Cut Saw Range
