Void Fill

Void Fill Under Stoop in John’s Creek

Body - Void Fill Under Stoop in John’s Creek

A homeowner in John’s Creek, GA recently reached out to Ground Consolidation Services after noticing a significant soil void under his front porch stoop. This is a common issue we see throughout the residential market across Georgia, usually as a result of poor drainage, grading, or a combination of both.

A typical way of tackling ongoing water-induced erosion is removing and replacing the stoop entirely, but this is incredibly costly and requires pulling out a perfectly well-built structure in the front of your home.

GCS, fortunately, offers a cheaper and wiser alternative. The homeowner called in GCS, and once on site, the crew recommended using Alchemy-Spetec’s AP Lift 430 high-density polyurethane foam to fill the void. We quickly drove injection pipes into the deepest part of the soil and filled the entire void with AP Lift 430. This expanding structural foam is known for compacting the surrounding soil and creating a solid, impermeable mass that will support the stoop for many years to come.

The resident was thrilled that GCS completed the repair in 1 hour, preventing not only a stoop collapse, but also a complete replacement!

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Crawlspace Void Fill to Stabilize Restaurant Foundation

Body - Crawlspace in Restaurant

We got a call from the owners of a fast-food restaurant in Oklahoma City, OK. They had a problem with their crawlspace because the entire steel foundation framework was compromised by oxidation and time.

A local structural engineer recommended filling the entire 4,500 cubic foot crawlspace with Alchemy-Spetec's AP Lift 430 high-strength polyurethane foam. It was either that or completely tearing down the structure to rebuild a new foundation framework, which could take forever. The restaurant was already suffering from lack of business as a result of COVID-19 so they needed it fixed ASAP. They called on Ground Consolidation Services for help.

Our crew arrived at the site quickly and got to work. We applied the AP Lift 430 to the entire crawlspace to support the structure. Our team of professionals efficiently filled the 4,500 cubic foot crawlspace with the expanding polyurethane structural resin. Thankfully, our experts completed the job and had the restaurant running again in two days! The restaurant's employees, management, and ownership were grateful for the excellent job we did in such a short time.

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Leak Seal and Void Fill of Detention Pond Pipes in Duluth, GA

Recently we got a call from the President of a home owners association in Duluth, GA.  The bottom of a large culvert pipe in a detention pond had decayed to the point that it was leaking massive amounts of water into the surrounding soil.  A critically important standpipe was then threatened by a soil void caused by this water leak.

Ground Consolidation Services injected Alchemy-Spetec's AP Lift 430 high strength polyurethane foam through the bottom of the pipe (see photo included with this article) to form a leak seal barrier and return the culvert to its full functionality.  We then injected the foam into the void around the standpipe.  Filling this void and compacting the surrounding soil created a solid impermeable mass that will support the standpipe for years to come.

This waterway leads to the Chattahoochee river, so we made sure to use a foam that was NSF approved for contact with drinking water.  Environmental safety is a top priority for GCS.

The home owners association President was thrilled that this repair was accomplished without large machinery and/or the full replacement of the pipes.  GCS saved them lots of time and money!

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GCS Lifts Sunken Steps for Multiple Homeowners Association Members in Hoschton, GA

A neighborhood homeowners association member in Hoschton, GA recently found GCS via Facebook.  Multiple homeowners in the same general area had problems with their front steps sinking.  GCS was called in to perform an inspection and provide a free repair estimate.  The estimator determined that repairs were possible and GCS crew were called in to do the job.

GCS crew used a mechanical jack to lift the steps close to level. They then injected Alchemy-Spetec's AP Lift 430 to finish the leveling process and secure the steps in place.  GCS has performed this procedure for seven homes in the same subdivision so far.  All steps have been leveled perfectly. Residents so far have been very pleased with the results.

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Garage Floor Depression Leveled in Acworth, GA

Unstable Garage Slabs = Danger

The weight of the average automobile is currently around 4,000 pounds.  When dangerous voids or unstable soil undermine your garage floor slab, you are parking that two ton machine on a surface that could possibly collapse.

Lest you think we're exaggerating, take a look at this 5th anniversary video of the floor collapse at the National Corvette Museum.  The video contains a recording of the 911 emergency call, juxtaposed against security cam footage of the concrete slab collapsing - taking some Corvettes with it.

Polyurethane Slab Repair

A homeowner in Acworth, GA recently noticed that his garage floor was depressed in the middle - bowing down towards the center of the garage.  He wisely called Ground Consolidation Services.  Our crews used Alchemy-Spetec's AP Lift 430 polyurethane foam to stabilize the soil deep beneath the slab and also to lift it back into place.

See the before and after photos: The string was secured at either end of the garage - revealing the 1.75" depression in the middle of the slab before the repair AND the almost non-existent depression after the repair.

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Increase Your Real Estate Property Value with Concrete Leveling

Real estate agents and homeowners alike are well advised to consider the condition of driveway, walkway, patio and pool deck slabs when prepping a property for sale.  Sunken slabs are an eyesore and a trip hazard.  Repair with high-strength polyurethane resin is very often less expensive than complete replacement.

Ground Consolidation Services provides free repair estimates.  Our best practices and warranty packages insure a durable and lasting repair.  We offer a complete set of geotech concrete repair services, including slab liftingsoil stabilizationvoid fill, and soil testing.

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Leveling Sunken Driveway Slabs in Atlanta

In most cases, sunken concrete driveway slabs should be repaired the moment you notice them. Settled concrete creates trip hazards for you and your family.  Sunken driveway concrete can damage your valuable vehicles.

Any time you notice these issues on your property, it's important to consider the possibility that deeper soil issues exist.  Sometimes settled concrete is a sign of dangerous voids underneath the slab.  In rare cases, a slab can cave in or completely collapse.

Ground Consolidation Services can perform extensive soil testing to determine the condition of the soil beneath your valuable structures.  When problems are found, we can fill dangerous voidsstabilize soil, and level slabs as needed with high-strength polyurethane foam.

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Stabilizing Slabs to Prevent Trip Hazards in Storage Facilities

Own or manage a storage facility with concrete slabs? The last thing you want is sunken concrete creating trip hazards for your customers and employees. Reduce your risk with a concrete slab inspection from Ground Consolidation Services. Even if you don't notice any sunken slabs on your property, GCS can identify dangerous voids underneath your concrete with the Deep Look Ground Penetrating Radar system. Dangerous voids increase the chance of sinking or even catastrophic slab collapse.

Ground Consolidation Services lifts slabs and structures with high-strength polyurethane foam. We also use polyurethane to fill voids.

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Repairing Sunken Slabs in Convenience Store Parking Lots

Sunken Slabs Pose a Threat

Sunken slabs in convenience store parking lots create the dual risk of damage to vehicles and injury to pedestrians. The last thing any convenience store owner wants is litigation due to neglect of a dangerous situation.

GCS Can Eliminate This Risk

Fortunately, if your parking lot is concrete (as opposed to asphalt), GCS can very likely eliminate these hazards quickly and efficiently. Concrete leveling with high-strength polyurethane foam is a fast, precise procedure that requires less downtime and less mess than the alternative repair methods of mudjacking or slab replacement. "Mudjacking" with cement grout requires heavy equipment and creates quite a mess compared to efficient polyurethane foam injection. Ripping out and replacing the concrete requires heavy equipment and lots of downtime.

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Filling Voids Under Slabs with Polyurethane

Silent Threat

Voids underneath slabs are a silent threat.  As you can see in the photo included with this blog post, soil can erode underneath a slab to the point where significant gaps occur.  If the void is visible, like the one in the picture, property owners and managers will become aware of it pretty quickly.  If the void happens to be at the center of the slab, or underneath an inside slab, it may not be so easy to notice.

Void Detection

Ground Consolidation Services offers void detection with the Deep Look™ ground penetrating radar system.  We can provide images of the area beneath your slabs to remove all uncertainty and take the guesswork out of the diagnostic process.  A crystal clear understanding of the problem provides the best foundation for accurate and lasting repairs.

Void Repair

Dangerous voids can be filled with high-strength polyurethane foam (and then the slab can be lifted if needed).  Ground Consolidation Services lifts slabs, stabilizes soil, and fills voids with the most efficient and durable polyurethane on the market.

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