Category

Soil Stabilization

Leveling and Stabilizing a Factory Floor

Body - Leveling & Stabilizing a Factory Floor

Recently Ground Consolidation Services was contacted by a South Carolina engineering and contracting firm for some help at an industrial food grade production plant. Due to poor compaction of the soils under the slab, cracking and settlement occurred. This was especially problematic because large injection mold machines sit atop this area and have to be level to work properly. Obviously having machines of this nature not running is quite costly to a production facility.

It was determined that soft unstable soils existed as far as 5 feet below the surface. GCS performed a series of deep soil injections using Alchemy-Spetec's AP Lift 475, a high- strength hydro-insensitive polyurethane foam capable of supporting 14,000 lbs per square foot. The deep soil injection process used in this application is a form of compaction grouting designed to squeeze the loose soils in a confined space. Once the soil was stabilized, we injected directly through the slabs in order to lift them back to their original level position.

The facility engineers and managers were thrilled to get the machines back online, not to mention all this was done by lunchtime! These issues are all too common and unfortunately, a lot of people don’t know that these less invasive, less costly, and less time-consuming repair options are available. The alternative to our method would have been removal and replacement of the concrete. Could you just imagine the time, cost, and mess (especially in a food-grade facility)? If you see signs of concrete settlement, such as cracking or uneven joints, give us a call for a free evaluation!

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Stabilizing Soil and Lifting Slabs at an Atlanta Shopping Center

This past week a popular shopping center in the Buckhead area of Atlanta called in Ground Consolidation Services to perform polyurethane injections for the purpose of slab lifting and soil stabilization. We were referred to the property management team by NOVA Engineering, one of the south’s premier engineering firms. There were several areas throughout the shopping area that were suffering from unstable soil issues under the concrete. In some areas we injected Alchemy-Spetec’s AP Lift 430 directly through the slabs for the purpose of lifting and eradicating trip hazards. In other areas where the soil issues lie deeper we performed subsurface polyurethane injections through pipes. The deep injection process of our expanding structural foam squeezes and combines with the loose soils therefore stabilizing the concrete above from any future settlement. If you notice settling concrete around your property don’t wait to do something about it as it will undoubtedly get worse and cost you more in the long run.

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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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Commercial – Industrial Slab & Concrete Repair

The photos in the graphic to the right depict two nightmare scenarios that no commercial - industrial property owner or manager wants to endure:

  • A Collapsed Slab
  • Cracked Concrete

Gound Consolidation Services can repair slabs in danger of collapse, lift sunken slabs, and repair cracked concrete. The state of the art polyurethane, polyurea and epoxies we use allow us to offer you the following advantages:

  • No Excavation
  • No Demolition in Most Cases
  • Clean, Fast, and Environmentally Friendly
  • No Heavy Equipment Required
  • No Permitting Required in Most Cases

Problems

Settled Slabs Cause...

  • Damage to Material Handling Equipment & Loads
  • Uneven/Unsafe Racking & Shelving
  • Slab Joint Damage (Spalls)
  • Trip Hazards & Litigation Risk

Concrete Cracks Cause...

  • Slab Deterioration Over Time
  • Rocking/Moving Slabs
  • Damage to Material Handling Equipment & Loads
  • Trip Hazards & Litigation Risk

Solutions

Stabilizing & Lifting Slabs:

Slabs are stabilized and leveled with high strength polyurethane resin. In optimal conditions, slabs can often be lifted to within 1/8” of their original level. Polyurethane slab lifting is much more efficient and a lot less expensive than demolishing and replacing the slab or structure.

Repairing Cracks:

Cracks are repaired with epoxy or polyurethane mortar. The mortar protects the edges of the joints from further chipping and spalling while absorbing the impact of hard-wheeled traffic (forklifts and pallet jacks).

Rebuilding Joint Nosings:
(Spall Repair)

Chipped joint edges, or “spalls”, are removed and the concrete is cut to a 90° angle. The joint nosings are then rebuilt with high-strength polyurethane or epoxy.

Filling Joints:

Deterioration of original joint filler can be repaired with high-strength polyurea. After any chipped edges or spalls are repaired, the deteriorated joints are thoroughly cleaned out. Polyurea is pumped in and then shaved to be level with the surface. The polyurea is tack free within two minutes and traffic ready in an hour. It protects the joints from further deterioration and protects the joint nosings from further damage.

The Ground Penetrating Radar Advantage

What Dangers Lurk Beneath Your Valuable Structures?

The Deep Look wireless ground penetrating radar system uses a patent pending unique triple frequency antenna design to create the most accurate image possible of the area beneath your valuable structures. Conventional single frequency antenna GPR systems cannot deliver the same level of clarity. Ground Consolidation Services will use the Deep Look GPR to take 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, durable and lasting repairs.

Free Site Evaluation & Job Estimate

The Deep Look wireless ground penetrating radar system uses a patent pending unique triple frequency antenna design to create the most accurate image possible of the area beneath your valuable structures. Conventional single frequency antenna GPR systems cannot deliver the same level of clarity. Ground Consolidation Services will use the Deep Look GPR to take 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, durable and lasting repairs.

Click here for info on our warranty packages.

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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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Pool Deck Slab Stabilization & Lift in Hampton, GA

Unstable Pool Deck

Ground Consolidation Services recently sent a crew to repair a pool deck in Hampton, GA.  As you can see from the before and after photos, the concrete slab was cracked and had started separating.  Due to the unstable soil that caused the concrete to break apart, part of the deck was pulling away from the pool liner.  If the liner had breached, the pool water would have started seeping into the soil, further destabilizing everything.

Polyurethane Pool Repair

Fortunately our crew arrived to start the job before the liner was breached.  Our skilled technicians used Alchemy-Spetec's AP Lift 430, a high-strength polyurethane foam, to lift the sunken part of the slab back into place.  Restoring the slab to its original state relieved the pressure on the pool liner, preserving the integrity of the pool and the surrounding soil.

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Lifting & Stabilizing a House Foundation in Dunwoody, GA

A family in Dunwoody, GA recently began the process of refinishing their basement. The contractor they hired quickly noticed that the corner of the house was sinking into unstable soil. He wisely recommended that they find a deep soil lifting contractor, and they ended up contacting GCS.

When major structural elements are sinking, the repair procedure is different from your standard slab lift process in which high-strength polyurethane foam is injected just beneath the sunken slab. The deep structure lifting procedure consists of injecting high-strength polyurethane foam deep into the soil beneath the structure, solidifying and lifting the substrate - and leveling the structure in the process.

In this case, the GCS crew drove four temporary injection pipes eight feet down into the supporting soil (two injection pipes on each side of the sunken corner). They injected Alchemy-Spetec's AP Lift 430 beneath the foundation and raised it back into place. The owners were glad to be back on track with their basement renovation project.

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Warehouse Slab Stabilization & Lifting in Atlanta

GCS recently repaired a cracked and slightly sunken unstable slab at a large warehouse in an industrial print shop. Their warehouse crew is constantly moving heavy rolls of paper around via forklift. Unstable soil caused slab damage right in the middle of a very busy section in the middle of the floor, where four separate slabs intersected.

With this 8 by 14-foot area out cordoned off, forklift traffic had to be rerouted to the point that the pace of business was adversely affected. Not to mention the fact that there was now a danger area in the warehouse that management had to worry about. Unstable slabs like this are often in danger of complete collapse. After doing their research and comparing their options, management contacted Ground Consolidation Services.

GCS performed soil testing with ground penetrating radar and a probe (dynamic cone penetrometer) to determine the extent of the damage. It turned out that there were around 3 feet (1 meter) of loose, unstable soil beneath the entire sunken area of the slab. Further collapse was definitely a possibility. GCS used Alchemy-Spetec's AP Lift 430 (a high-strength expanding polyurethane foam) to raise the slab back to level and stabilize it. The lifting/stabilizing process only took about 1 hour.  The crew then performed some concrete repair with Alchemy-Spetec's Epicol INJ LV epoxy mortar to reconnect the cracked slab elements back together.

Management at the print shop was thrilled with the quick repair.  The epoxy was cured in just 24-48 hours, and then they were back to business as usual!

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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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