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

SandJacking
Mud Pumping
Foaming
Excellent (dried sand)
Poor (wet slurry)
Good (oil-based)

The Process

SandJacking
Mud Pumping
Foaming
Pneumatic (dry)
Hydraulic (wet)
cHydraulic (wet)

Stability & Compaction

SandJacking
Mud Pumping
Foaming
Excellent
Fair (7% Organics)–
shrinks/cracks
Fair to good
(can be compressed)

Environmental Impact

SandJacking
Mud Pumping
Foaming
Low (natural sand)
Medium
Higher (forever chemical)

Long Term Durability

SandJacking
Mud Pumping
Foaming
Highest
Medium
Medium(depends on soil)

Precision Lifting

SandJacking
Mud Pumping
Foaming
High
Low
Medium

Interior Use

SandJacking
Mud Pumping
Foaming
Very suitable
Less suitable
Suitable

Holes in Slabs

SandJacking
Mud Pumping
Foaming
very few
Many-large
Many-medium

Risk of Slab Damage

SandJacking
Mud Pumping
Foaming
Low
Higher
Moderate

Lifting Methods

SandJacking
Mud Pumping
Foaming
30+
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