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Concrete Lifting and Soil Stabilization in Buckhead Village

GCS July 29, 2021

Body - Concrete Lifting and Soil Stabilization in Buckhead VillageGround Consolidation Services recently completed another round of repairs in Buckhead Village for a large real estate management company. In addition to trip hazards due to sunken slabs, a geotech report provided by an engineer revealed unstable soil up to three feet deep in some areas underneath. GCS performed compaction grouting before the slab lift in order to stabilize the soil, thus addressing the root cause of the settling. Compaction grouting entails driving injection probes on a grid pattern to the required depth. In this case, the GCS crew injected Alchemy-Spetec’s AP Lift 430 into the soil. This high-density expanding polyurethane foam fills any voids present and compacts the loose unstable soil.

Once the deep soil issues were resolved we could then inject AP Lift 430 directly underneath the slabs, gradually and precisely lifting them with the expanding foam. An efficient, surgical repair process like this beats ripping out and replacing a slab most of the time. Imagine having to remove all concrete and unstable soil, repack the subgrade, and repour new concrete. Which option do you think requires less time and money (by a lot)? We were able to hit several areas of the property over the course of 2 days with zero disturbance to the retail businesses. Trip hazards and litigation risks can be easily avoided if slab settlement issues are dealt with properly. Call us today for a free assessment!

Deep Soil Stabilization in Metro Atlanta

GCS March 29, 2020

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.

Sometimes soil issues occur well below the surface.  If the problem is five feet deep or more, then deep soil stabilization is required.  GCS technicians detect the depth of soil issues with a soil probe during the standard site evaluation process.   Further investigation is available via soil testing probes and ground penetration radar.

The deep soil stabilization process consists of injecting high strength polyurethane resin through long sections of hydraulic tubing.  Injection starts from bottom and the technician injects more as the tubing is extracted, creating solid columns of soil stabilization resin.

This process is also known as pressure grouting.  See the illustrations below…

Ground Consolidation Services: What We Do

GCS March 29, 2020
Ground Consolidation Services lifts slabs, stabilizes soil, and fills voids with efficient and durable high-strength polyurethane resin. Prior to the soil repair process, GCS uses the Deep Look GPR system to reveal the full extent of sub-surface problems endangering your slab or structure.

Concrete Leveling

Sunken slabs or structures create trip hazards, liability risks and are often a sign of further damage to come if the problem is left unaddressed. Fortunately, they can be leveled with high strength polyurethane resin. In optimal conditions, slabs and structures 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.

Stabilizing Soil

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.

Pressure Grouting

Unstable soil is a constant threat to structures and slabs that depend on a solid foundation. Some problems require compaction grouting (solid columns of grout), while other problems require permeation grouting (grout mixed in with the soil). Both types of pressure grouting provide lasting support for your valuable buildings and infrastructure.

Filling Voids

Undetected voids are a silent threat that can cause slabs and structures to sink or collapse without warning. Neglect can result in serious injury, litigation and even death.  GCS can protect your property and assets from these possibilities with the latest void detection and repair technologies.

Soil Scanning with Radar

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.

Pressure Grouting

GCS March 28, 2020

Unstable soil is a constant threat to structures and slabs that depend on a solid foundation. Ground Consolidation Services employs pressure grouting to repair problem soil under your valuable structure.

Compaction Grouting

Compaction grouting is the creation of solid columns of grout beneath the slab or structure. Non-permeable cohesive soil requires displacing the unstable problem areas (voids, sections of loose soil, etc.) and replacing them with high-strength polyurethane.

Permeation Grouting

Permeation grouting the mixing of grout with the soil beneath the slab or structure. Loose sandy or rocky soil requires complete permeation with high-strength polyurethane in order to create a solid mass.

Both types of pressure grouting provide lasting support for your valuable buildings and infrastructure.

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