As the concrete slab hydrates and begins to set, it develops internal stresses. These stresses need to be relieved in a controlled way before they seek their own relief in the form of a random crack. By cutting control joints as a final step of the finishing process, you create a pattern of predetermined weakened planes in the concrete, that subsequently crack at the bottom of the cuts.
The Ultra Early Entry™ solution
The Husqvarna Soff-Cut® system is the optimal way to control random cracking. With ultra-early entry cutting you can control cracking in slabs up to 225 mm thick, with only a 25 mm minimum depth,
within the green zone (1–2 hours after pouring).
How to succeed with Husqvarna Soff-Cut®
- Start sawing as soon as you’re sure the concrete will support the weight of the saw and operator without marking or damaging the concrete. You don’t have a lot of time.
- Determine the layout of the joints in advance. Ensure straight cuts by drawing guidelines on the surface to follow.
- If possible, start the job with a new, unused Husqvarna XL Series dry-cutting diamond blade and anti-ravel skid plate.
Consider the following factors when choosing your Soff-Cut machine