
Comparison of Concrete Lifting Methods
Sandjacking vs Mudjacking vs Foaming
The Best Concrete Lifting Solution
Patented. Proven. Affordable.
Sandjacking, mudpumping (mudjacking), and foaming (polyurethane foam injection) are all techniques used in an attempt to lift and level settling concrete slabs.
The Chuck’s Sandjacking’s unique, patented processes provide several distinct advantages for Concrete Repair:
Stability,
Precise lift,
Dryness
and Longevity.
Please review the advantages of our Sandjacking process compared to mudpumping and foaming:
Moisture Control and Drying
ADVANTAGE – Chuck’s Sandjacking:
Uses specifically ultra-dried sand, preventing additional moisture intrusion and buildup under the slab.
Helps dry out the sub-base and underlying soils over time.
CONTRAST:
Mudpumping introduces a wet slurry (cement, water, and soil), which introduces moisture and may cause further settlement or frost heave.
Foaming is mostly dry but does not actively reduce moisture in the subgrade like our patented sandjacking process.
NEITHER mudpumping nor foaming completely fills the voids, so water can again find its way under your slab and keep everything saturated.
Compaction and Stability
ADVANTAGE – Chuck’s Sandjacking:
Our specifically ultra-dried sand is mechanically compacted beneath the slab, filling voids and creating a very stable base.
Because it is ultra-dry, the sand fills the voids and compacts immediately. Our unique, patented Sandjacking process reduces the risk of future settling or voids forming, therefore reducing the possibility of water storage.
CONTRAST:
Since mudpumping introduces water in the process, the mixed materials will likely shrink over time.
Foam cannot fill voids completely; therefore, water will likely fill the empty voids.
Environmental and Material Safety
ADVANTAGE – Chuck’s Sandjacking:
Involves only our specifically ultra-dried, inert materials (sand) - no chemicals or synthetic components.
More environmentally friendly and non-toxic.
Contrast:
Foaming involves chemical reactions and synthetic materials (polyurethane), which can emit toxic gases and may be less desirable in eco-sensitive environments.
Traditional mudjacking is more natural than foam, but it can result in slab settling in our harsh freeze-thaw weather cycles.
Long-Term Performance
ADVANTAGE – Chuck’s Sandjacking:
High durability and minimal degradation over time.
Resists erosion and void formation better than mud or foam.
Water accelerates slab settling. No water – NO SETTLING!
CONTRAST:
Neither foam nor mud fills voids completely, so water can accumulate under your slab again.
Precision and Control
ADVANTAGE – Chuck’s Sandjacking:
Allows for very precise slab lifting, as our method can be fine-tuned during the unique, patented process. Chuck's Sandjacking uses mechanical methods to precisely raise concrete slabs BEFORE introducing the specifically ultra-dried sand to fill the voids and provide maximum stability.
CONTRAST:
Foaming and mudpumping don’t allow for the precise lifting provided by Chuck’s Sandjacking process.
Foam expands rapidly and can over-lift (too high) if not carefully controlled.
Mudpumping is less precise due to slurry spread.
Low Pressure vs High Pressure
ADVANTAGE – Chuck’s Sandjacking:
Following the mechanical lifting of the slab, our specifically ultra-dried sand is placed using low air pressure, allowing precise and complete filling of voids.
CONTRAST:
Foaming uses higher pressure, which lends to unpredictability and can cause overfilling/overlifting.
Mudpumping uses higher pressure, which can cause slab fractures and slab shifting.
Side-by-side Features Comparisons
Moisture Control
The Process
Stability & Compaction
shrinks/cracks
(can be compressed)