How Contractors Can Reduce Random Concrete Cracking: Best Practices and Tools That Make a Difference.

Concrete is one of the most durable and versatile building materials, but it’s also prone to one frustrating issue—random cracking. For contractors, these unsightly cracks aren’t just cosmetic. They can lead to callbacks, repairs, and frustrated clients. Fortunately, there are proactive steps you can take to significantly reduce random cracking and improve the quality and lifespan of your concrete work.

At Emery Equipment, we work with contractors every day to provide solutions that make jobs more efficient and successful. One of the most effective techniques for minimizing random cracking is early-entry sawing—and no one does it better than Husqvarna with their Ultra Early Entry saws.

Understanding Why Concrete Cracks Randomly

Concrete cracks primarily because it shrinks as it cures. When this natural shrinkage is restrained—by the ground, rebar, or environmental conditions—the internal stress builds up until the concrete cracks. If this isn’t controlled with proper jointing techniques, the result is random cracks that weaken the slab and spoil its appearance.

Best Practices for Reducing Random Cracking

1. Use Control Joints Strategically

Control joints are planned cracks that allow concrete to shrink without causing unsightly random cracking. For the best results:

• Place joints at 24–36 times the slab thickness (in inches). For example, a 4” slab should have joints every 8–12 feet.
• Ensure joints are at least one-quarter the slab thickness in depth.

2. Enter the Green Zone with Early-Entry Sawing

The “green zone” refers to the optimal window of time—after the concrete has set but before it has fully hardened—to make saw cuts that guide where cracks will occur. This window typically occurs within 1 to 4 hours after finishing, depending on conditions.

Husqvarna Ultra Early Entry saws.

These saws are designed to cut during this early green zone with minimal risk of raveling or spalling. The benefits include:

• Cleaner cuts with minimal chipping.
• Reduced risk of random cracking by controlling stress earlier in the curing process.
• Faster job turnaround—you don’t have to wait until the concrete is fully cured.

3. Match the Blade to the Mix

Husqvarna offers blades tailored to specific aggregates and mix designs. Choosing the right blade reduces the risk of edge chipping and extends the life of your equipment.

4. Monitor Weather Conditions

Temperature, wind, and humidity all impact how quickly concrete sets. Be ready to adjust your timeline for sawing based on current conditions. The earlier you can safely get those joints in, the better.

5. Proper Curing Practices

Don’t forget that cracking can still occur due to improper curing. Using curing compounds or wet coverings can help maintain adequate moisture and reduce the shrinkage stress that leads to cracking.

6. 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.

7. Break in the blade

Operate the soft-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 as well as expand the life of the blade.

Why Choose Husqvarna Ultra Early Entry Saws from Emery Equipment?

At Emery Equipment, we stock Husqvarna’s full line of Ultra Early Entry saws, including blades and accessories to match your project’s needs. These saws are engineered for performance, safety, and longevity—backed by a brand contractors trust and a local team that knows how to support your work.

Ready to Cut Smarter?

Whether you’re new to early-entry sawing or a seasoned pro, Emery Equipment is here to help you reduce random cracking, finish jobs faster, and deliver top-tier results your clients will love. Stop by or give us a call to learn more about our Husqvarna lineup or to schedule a demo today!

____________________________________________________________________________________EMERY EQUIPMENT 12181 Airline Hwy, Baton Rouge                   225.753.0541