Home ▸ Applications ▸ Concrete Lifting & Slabjacking
Concrete lifting—often referred to as slabjacking or mudjacking—is a high-margin service that restores sunken concrete to its original grade without the massive overhead of demolition. However, your results are only as reliable as your equipment.
At Black Jack Grout Pumps, we manufacture contractor-grade, USA-made grout pumps designed to handle the rigorous pressures of lifting heavy slabs.
If you are leveling a residential walkway or stabilizing a massive industrial floor, our systems provide the control you need to prevent cracking and ensure a level finish.
We’ll help you find the right product for your job, whether you know what you need or have a few questions first.
Our flagship system is the gold standard for professional slabjacking.
The biggest risk in slabjacking is secondary settlement. If your mix shrinks or washes away, the slab will sink again.
Our IBC-compliant proprietary grout mix is engineered specifically for lifting:
1. High Compressive Strength: Outperforms traditional mud slurries. Delivers long-term load-bearing support for both residential and heavy commercial slabs.
2. Zero Shrinkage: Once the slab is lifted, it stays lifted.
Eliminates callbacks caused by settlement or material consolidation over time.
3. Hydrophobic Properties: Resists wash-out in areas with high water tables or poor drainage.
Ideal for environments prone to moisture intrusion, ensuring durability in challenging soil conditions.
As your partner in the field, we want to ensure every lift is a success. Here are three professional keys to slabjacking:
1. Strategic Drill Patterns: Space your holes based on slab thickness. Thinner residential slabs require closer spacing to prevent spiderweb cracking during the lift.
2. The Slow and Low Method: Always start lifting at the lowest point of the settlement. Apply pressure in small increments across multiple holes to distribute the load evenly.
3. Void Filling vs. Lifting: Always fill the void completely before attempting to move the slab. Our pumps allow you to feel the backpressure so you know exactly when the void is full.
Are you bidding on a large municipal contract? Or are you a new business owner looking for the right starter rig?
At Black Jack Grout Pumps, we offer free project consultations. Our experts will review your project specs and recommend the exact pump, mix, and pressure settings required to get the job done right the first time.
We’ll help you find the right product for your job, whether you know what you need or have a few questions first.