Concrete Leveling Methods: Mudjacking, vs. Foam Lifting vs. Stone Slurry

Three methods stand out when it comes to concrete lifting and leveling: mud jacking, polyurethane foam lifting, and stone slurry. Each technique boasts unique strengths and potential drawbacks. But how do they truly compare in terms of cost, durability, and environmental impact?

Understanding these differences is crucial to making an informed choice for your project. Read on to discover which method is the heavyweight champion in the battle of concrete leveling.

Mudjacking Concrete Leveling

How Mudjacking Works

Mudjacking is a traditional method of leveling sunken concrete slabs where small holes are drilled into the surface. A slurry mixture, typically composed of water, soil, sand, and cement, is then hydraulically pumped through these holes.

As the slurry spreads beneath the slab, it exerts upward pressure, raising the concrete back to its original, level position. The holes are then filled, and the surface can be used soon after completion.

Advantages of Mudjacking

Mudjacking offers a cost-effective solution for lifting concrete. Due to lower material costs, it is generally about 20% less expensive than foam jacking. It’s particularly effective for smaller concrete slabs and areas where weight and structural stress are less intense.

Mudjacking has been around for decades, so it’s a proven method, and many contractors are well-versed in its application. It also serves well in cases with significant settlement and can even create a solid subbase for foam jacking if a more permanent solution is needed later.

Disadvantages of Mudjacking

• Heavier material causing potential soil compression
• Less precise void filling, risking uneven results
• Large drill holes in your concrete
• Susceptibility to water washout, reducing long-term effectiveness

When to use Mudjacking Concrete Leveling method

Consider mudjacking when budget constraints call for a more economical choice or when large construction equipment cannot easily access the project site, as it’s a procedure that doesn’t necessarily require heavy machinery. It’s also a solid option if the afflicted area is far from a road or the reach of heftier equipment exceeds 200-300 feet.

Mudjacking is a good option for residential projects with smaller and lighter slabs, such as patios, walkways, and porches, especially if future soil settlement is less of a concern.

“Mud-jacking grouts have been shown to be a much more reliable, safe, and sustainable alternative to poly-foam materials” Matthew P. Adams, Ph.D., FACI

Which Concrete Leveling Type Is Best for You?

Consult an expert to determine the best concrete leveling method for your needs. Schedule a free virtual inspection and estimate with a Concrete Chiropractor team member in your area.

Polyurethane Foam Concrete Leveling

How Polyurethane Foam Concrete Leveling Works

Polyurethane foam concrete leveling, or foam jacking, begins with drilling small, strategically placed holes in the sunken slabs. A high-density liquid foam is injected through these holes, filling the voids beneath the slab.

As the foam reacts and expands, it exerts upward pressure, raising the slab to a level position. The rapid-hardening foam cures within about an hour.

Advantages of Polyurethane Foam Concrete Leveling

Despite its popularity for concrete leveling, polyurethane foam falls short when considering cost-effectiveness compared to mud jacking. Foam materials are often more expensive, increasing overall project expenses, thereby making mudjacking a more budget-friendly, equally efficient, and stronger alternative for many concrete repair scenarios.

Polyurethane is created by mixing two products: part A and part B. This mixing process generates heat, and the product has been known to self-combust and burst into flames, resulting in toxic smoke and health-related lawsuits.

Disadvantages of Polyurethane Foam Concrete Leveling

• It can be pricier for larger jobs
• Less control over expansion can lead to uneven results
• Smaller drilled holes may limit future repairs
• Potential safety risks during the installation process

When to use Polyurethane Foam Leveling method

Choose polyurethane foam leveling when dealing with delicate areas.

In this Concrete Chiropractor video, you can see the life cycle and environmental impact of concrete lifting foam:

Stone Slurry Grout Concrete Leveling

How Stone Slurry Grout Concrete Leveling Works

Stone slurry grout concrete leveling hinges on creating a sturdy foundation beneath sunken slabs by filling subsurface voids. Small holes are carved into the uneven concrete, through which technicians carefully pump a stone slurry, a liquefied mixture of pulverized limestone, water, and sometimes Portland cement.

The steady pumping offers precise control over the slab’s elevation, ensuring a smooth and gradual lift. Once the desired level is reached, the holes are patched up, and the compound quickly sets to provide immediate support.

Advantages of Stone Slurry Grout Concrete Leveling

• Environmentally conscious natural materials
• Excellent load-bearing attributes
• Applicable for both indoor and outdoor settings
• Long-lasting results mirroring concrete’s lifespan
• Minimal disruption during the application

Disadvantages of Stone Slurry Grout Concrete Leveling

• Larger drill holes than foam leveling
• Higher cost compared to mudjacking
• Need for highly skilled installation technicians
• Extended curing time in comparison to foam

When to Use Stone Slurry Grout Concrete Leveling

Opt for stone slurry grout leveling for projects requiring precise, gradual elevation adjustments such as around pools or for A/C unit pads, where exact leveling is essential. It’s also highly effective for heavier slabs such as driveways or commercial floors that endure constant heavy traffic or substantial loads.

If you anticipate minimal future soil movement or if the project is in environmentally sensitive areas where natural materials are preferred, consider this method for its long-term durability and strength.

Choosing the Right Concrete Leveling & Lifting Method for You

Know the Processes

When preparing to level concrete, it’s crucial you understand the nitty-gritty details of each method offered. Each process has its unique machinery, materials, application techniques, curing times, and longevity outcomes.

Mudjacking typically involves a heavier slurry that lifts through sheer force, whereas polyurethane foam uses a chemical reaction that expands the foam to lift concrete. Stone slurry grout relies on natural substances, offering an eco-friendly and durable option.

Find You a Trustworthy Concrete Leveling Company

Securing a reliable concrete leveling company is paramount to ensure quality, lasting results for your leveling project. With Concrete Chiropractor, you’re selecting a partner with over 25 years of experience raising concrete with integrity and expertise.

The company’s sterling reviews and unwavering commitment to customer satisfaction testify to their status as industry leaders. Far from offering empty promises, we provide a straightforward warranty, ensuring that the work is covered without hidden clauses that negate the agreement.

Their foundational principle is simple: deliver on promises with a customer-first approach.

• Experienced and reliable with a long track record
• Positive reputation backed by authentic customer reviews
• Transparent, no-nonsense warranty that stands by the work performed
• A customer-centric philosophy, always prioritizing your satisfaction

Concrete Chiropractor testimonials from our customers

“Here we are, almost twenty years to the date, and our garage floor still looks great!” Larry L. Bridgwater, NJ

“Back in 2001, we called Concrete Chiropractor because we had a slab that was sunken. Almost twenty years now. Not one issue!” Middlesex Elks. NJ

FAQs

What is the most cost-effective concrete leveling method?

Mudjacking is the most cost-effective concrete leveling method. It uses less expensive materials and typically requires lower labor costs than other methods, such as polyurethane foam or stone slurry grout leveling. This makes mudjacking a budget-friendly option, especially for small—to medium-sized residential projects.

How do environmental conditions affect the choice of leveling method?

Environmental conditions heavily influence the choice of leveling method. Polyurethane foam, for instance, withstands moisture well and is ideal for areas prone to water exposure or erosion. On the other hand, mudjacking might not fare as well in such conditions, as the slurry can wash out over time. In environmentally sensitive areas, the natural composition of stone slurry grout is more appealing for reducing the ecological footprint.

Can all types of concrete be leveled with these methods?

All types of concrete slabs, from driveways and sidewalks to patios and pool decks, can generally be leveled using mudjacking, polyurethane foam, or stone slurry grout methods. However, the condition and type of concrete, along with the specific leveling challenge, may make one method more suitable.

How long do the results of each concrete leveling method last?

Concrete leveling longevity can vary with each method. Mudjacking has a history of lasting 20 or more years, while stone slurry grout has a similar lifespan. Polyurethane foam, on the other hand, does not have the time-proven durability, and it has been known to break down with time.

Is foam jacking better than mudjacking?

While foam jacking is heralded for its quick application, it can struggle with longevity in extreme climates. Unlike mudjacking, foam may degrade quickly under harsh conditions, leading to recurring issues. Mudjacking provides a time-tested, robust solution that stands up to severe weather, making it a superior and more durable choice.