Commercial and Industrial Slab Lifting in Atlanta

Sunken concrete slabs can be lifted back into place with two-component polymer foam designed to work in wet or dry conditions. The expansion force of the concrete leveling foam coupled with the pressure of a specialized pump generate enough controlled force to lift virtually any structure back into position with 1/8” precision. Polyjacking and concrete lifting can be accomplished at a fraction of the cost and time required for replacement.

Watch this video from our material supplier Alchemy-Spetec for a quick demonstration…

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Stabilizing a House with Polyurethane Foam

Eroded soil and voids underneath a structure can result in settlement and damage to the structure. Ground Consolidation Services can fill these dangerous voids with high strength polyurethane foam that supports up to 14,000 pounds per square foot.

In this video from our polyurethane supplier Alchemy-Spetec, you’ll see the back half of a residence resting on nothing but its frame and thin air. Installation of polyurethane foam secures the structure and prevents potentially catastrophic damage.

Watch the video below…

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Polyurethane Vs. Cement Grout in a Nutshell

The Quick Answer

One question we often get from property owners and managers is about the difference between polyurethane vs. cement grout. The quick answer is that the polyurethane AP Lift Foam we use weighs less, has a quicker set time, doesn’t shrink, requires less equipment, and can be installed in any climate.

The table included in this post provides further specifics for each claim.

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How NOT to Repair a Tripping Hazard in Atlanta

One of the more popular segments on TV is when the sports analysts stand around and watch film of the previous week’s boneheaded plays.  These are the “C’mon man” awards. See a guy fumbling or running the wrong way and these ex-players / analysts are like, “Come on man, what are you thinking!” It’s a really funny segment.

If you’re in the concrete lifting industry, it’s impossible not to miss obvious tripping hazards and the methods different municipalities and businesses use to address them. So in honor of those methods, here are a few How NOT to Repair a Tripping Hazard “Come on Man!” awards. Names will be withheld of course; we don’t want to completely shame them.

Look at these before and after pictures…

This municipality had the edge of a sunken sidewalk slab painted with orange spray paint. A responsible citizen pointed out that it was still technically a tripping hazard. What did they do? They sent a crew out with an asphalt truck, and slapped a makeshift asphalt ramp together to bridge the slabs. This is certainly not A.D.A. compliant and it’s also ugly as hell. It will also not last. COME ON MAN!

Look below at how tripping hazards were addressed at a rest area…


These slab transitions were grinded down to remove the tripping hazards. At least they didn’t just paint them. Grinding the concrete exposes the aggregates, and it leaves ugly patterns that will stay visible for years. It also fails to address the unstable soil, leaving the possibility open for further sinking. COME ON MAN! You should have had those slabs adjusted with polyurethane technology.

Here’s another great paint job…


Maybe if we paint this tripping hazard yellow, people will see it and not trip and fall down. How well does that work at night? This was on a hotel property and there is certainly pedestrian traffic in the evenings along these walkways. COME ON MAN!  Do you realize that by painting the tripping hazard you are proving that you had knowledge of the issue and didn’t do anything about it? Prior knowledge is a key component in tripping hazard lawsuits.

Then of course, there are property owners that don’t do anything at all…


That’s it for this special awards edition blog post. And remember, if you’re a property owner faced with a tripping hazard…COME ON MAN! Repair it correctly. Don’t be that guy!

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Concrete Leveling to Prevent Trip Hazards & Litigation Risks – Part 2

In the previous installment of this two-part series, we looked at common slab settlement danger zones, causes of sinking slabs, and the many risks of neglecting a known trip hazard. This time around we’ll review the two most common non-polyurethane repair options, and then explore the three most common types of polyurethane slab repairs.

Non-Polyurethane Repair Options

Aside from polyurethane repair, you have two other options: replacing the slab or mudjacking it with cement grout.  There are drawbacks for both.

Tear Out and Replace

Ripping out a slab and putting in a new one has three main disadvantages.  Namely, the process is…

  • Environmentally unfriendly (landfill bound?).
  • Messy (requiring heavy equipment and possibly damaging the surrounding area).
  • Time consuming.

Mudjack with Cement Grout

Mudjacking may be less expensive than replacement, but you are still facing a number of issues.

  • It’s still a messy process.
  • Cement grout washes out.
  • The grout is heavy and can sink over time.
  • The grout can crack and shrink over time.
  • Not an impermeable water tight solution.

Structural Polyurethane Repair

Polyurethane repair has distinct advantages over replacement and mudjacking.

  • Very clean installation process.
  • Lighter than cement mudjacking grout and won’t sink over time.
  • Will not shrink.
  • Closed cell structure makes it water impermeable.
  • Typically less expensive than replacement.
  • Less time consuming to apply than a mudjacking or replacement solution, and ready for traffic 45 minutes after application.

Trip hazard repair with polyurethane resin can require one or a combination of the following three approaches: lifting, soil stabilization and void fill.  Let’s take a close look at all three…


Sunken concrete slabs can be lifted back into place with a-two component structural polymer foam designed to work in wet or dry conditions. The expansion force of the foam coupled with the pressure of a proportioner pump generate enough controlled force to lift virtually any structure back into position within 1/10” of the intended level.

Soil Stabilization

Unstable, eroded, or loose soil below infrastructure can result in settlement, damage to the structure above, and of course – trip hazards. Voids can be filled, soil consolidated, and water migration halted by permeating the soil with one of the ultra low viscosity polymer resins we use for stabilization. Once the bearing capacity of the soil has been increased with this process (soil has been stabilized), then the structure can be lifted with our slab lifting process.

Void Fill

Water erosion beneath slabs can cause voids to form that weaken the structural integrity and allow higher water pressure to develop. Filling these voids with rapidly expanding foam that is designed to react in the presence of water will return integrity to the structure and prevent trip hazards. We use polyurethane resins designed specifically for this type of application.

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Concrete Leveling to Prevent Trip Hazards & Litigation Risks – Part 1

Concrete slabs sink for a variety of reasons.  The result is an eyesore and possibly a trip hazard that could – in a worst case scenario – result in a serious injury, death, and/or a lawsuit.  Lifting slabs with polyurethane foam is safe, fast, and economical.

Property owners and managers should learn how to deal with these liability issues NOW with the latest concrete repair techniques and preventative measures.

Common Danger Zones

Since an ounce of prevention is worth a pound of cure, it’s helpful to know where to look for potential sunken slabs, especially if you own or manage a large variety of properties.  The three main property categories that tend to have slab settling issues are:

  • Residential (single and multi-family).
  • Commercial and industrial.
  • Warehouse and logistical.

Residential sites can often have driveway, sidewalk, patio, or garage floor issues.  Commercial and industrial sites often contain showroom or factory floors made of concrete slab.  Warehouse and logistical centers can contain huge floors with massive square footage.  Because warehouse floors are often raised off the ground to incorporate a loading dock, they are particularly vulnerable to the formation of dangerous voids underneath.

Causes of Slab Settlement

Let’s take a look at why slabs sink in the first place. There are at least six main reasons:

  • Equipment on surface putting too much weight on slabs.
  • Erosion due to natural causes.
  • Leaking drain pipes and water mains.
  • Improper site drainage or poor water management from downspouts and gutters.
  • Poor soil consolidation/compaction.
  • Old trash pits from the original construction phase that were too close to the structure.

Familiarity with these common causes of slab settling can help a lot when attempting to diagnose the exact cause at a specific location.

Results of Neglect

After becoming aware of a slab issue, the property owner has a critical choice to make.  To repair or not to repair – that is the question.  Neglecting a repair can have huge implications.  Here are a few possible results of neglect:

  • Damage to vehicles and equipment.
  • Unlevel racking and storage.
  • Personal property damage.
  • Sinkholes.
  • Trip hazards.
  • Employee injuries.
  • Limitless liability issues.

Read that list a few times and seriously consider the very real possibility that one or more of these events may actually occur if you neglect a slab repair.  As experts with many years in the industry, we’ve seen every one of these events unfold after a problem was ignored.

In the next installment of this two-part series, we’ll review the two most common methods for repairing a trip hazard aside from polyurethane, and then we’ll review the three most common types of slab repair with polyurethane: slab lifting, soil stabilization and void fill. Click here to read the next installment now.

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Repair Unlevel Atlanta Warehouse Slabs with Polyurethane Foam

Unstable soil often causes structural cracking, cave-ins, and sinkholes. Fortunately, soil can be stabilized and water infiltration stopped with polyurethane resins.

Once the soil has been consolidated and strengthened, any slabs or structures resting on it can be leveled if needed.

Voids beneath warehouse floors can also be filled with this high-strength polyurethane foam. This product is great for slabs that rock and warehouse floors that have begun to sink.

With this extremely effective stabilization procedure, unlevel rocking slabs can be repaired at a rapid pace.

Want in-depth info on how to repair unlevel warehouse slabs?

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Warehouse and Industrial Slab Repair in Atlanta

One of the hidden dangers a warehouse or industrial property owner and their employees can face is an unstable or sunken slab with a large void underneath.  T


he last thing anyone wants is injury and/or a lawsuit resulting from an un-repaired trip hazard or worse – a complete slab collapse.  Take a good long look at the photo below.  This occurred when a forklift carrying a heavy piece of equipment crossed a slab with an un-detected void underneath.  Luckily, no one was injured. WE CAN PREVENT THE DISASTER DEPICTED IN THIS PHOTO… IMG_6736

This video below explains GCS soil and slab repair services.  Take a couple minutes to watch it and then give us a call at 678-337-8374.

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5 Warning Signs a Structure May Need Slab Lifting or Stabilization

A home or commercial building is only as good as the foundation it’s built on. And regardless of how well-constructed a structure may be, most foundations settle. That’s just a fact of life. Shifting soil compaction and many other environmental conditions that tend to cause settling, however, should ideally be stabilized before significant structural damage is done. One or two minor hairline or shrinkage cracks shouldn’t necessarily send off any warning bells – though both merit monitoring. But multiple or widening cracks indicate more serious problems and may lead to additional damage. For the property owner, this can disrupt business, displace occupancy, and cause a domino-effect of infrastructure woes serious enough to break the bank. Or worse. Litigation can result if preventative action isn’t taken before loss or injuries occur. These factors alone make acting sooner rather than later imperative. Stabilization and lifting are key solutions to consider in cases of foundation or slab distress. How can you know for sure if slab lifting or soil stabilization is needed? Watch for these five warning signs:

Bulging or Cracked Floors

It’s estimated that 60 percent of homes built on expansive soils result in shifting and heaving in all or even just part of the foundation. One can’t-miss sign of distress caused by wobbly soil compaction is buckling and bulging wood floors or evidence of cracking concrete in other types of flooring.

Cracked Walls

When soil moisture levels are all over the map, you can be sure that problems will ensue. Poor drainage, soil decomposition, naturally occurring conditions, nearby sewer line damage, underground aquifers – all can play a role in fluctuating soil moisture levels that lead to foundational settling. Cracked sheetrock or concrete walls are a warning sign that trouble is brewing underneath the surface.

Sticking Doors

When doors suddenly start sticking or won’t easily open or close, it’s a sign that either moisture levels are causing the door to swell or something in the structural frame has shifted. And that something might very well be the foundation.

Displaced Moldings

Look up toward the ceiling or down at the floor for moldings that may have gone wonky, jutting this way or that.

Leaning Trees, Fence Posts, Etc.

It’s hard not to notice a tree, fencepost, mailbox, or flagpole that is leaning like the Tower of Pisa. If you don’t associate this abnormality with foundational distress, you should. It can be a sign of sinkholes – the kind that gape and maw without warning. If the site you’re evaluating is in what is known as karst terrain, which about one-fifth of the nation is, it’s susceptible to sinkholes. Likewise if there are abandoned coal or other mines, sewer construction or groundwater pumping nearby. All are signs that further investigation may be needed, pronto.

Want more information on slab, structure and soil repair?


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