Permeation and Compaction Grouting in Peachtree City

In Peachtree City, a water line recently broke and went undetected for a lengthy period of time, causing large amounts of soil to wash towards a nearby retention pond. This was especially problematic since it occurred underneath a large retaining wall that supports a large retail store! Settlement of the back corner of the building led to the discovery of the deeper and profoundly serious issues below.

A contractor installed helical piers (steel foundation pins) around the back corner of the building. The GCS crew then performed deep injections of Alchemy-Spetec’s AP Lift 430 in a curtain pattern to compact loose soil around the piers and prevent any future lateral movement. To remedy the washed-out soil issue along the drainpipe that feeds the retention pond, the GCS crew also did a series of probe injections (driving grout probes down 13 feet to essentially straddle the pipe).

The crew then injected AP Soil 600 to permeate and squeeze the unstable soil as well as fill any voids created by the washout. This repair took a few days. Could you imagine how much time and money it would take to rebuild a 20’x150’ retaining wall?!

Call us now at 678-337-8374 for a free assessment of any soil or settlement issues.

Lifting an Office Park Entry Slab in Norcross

Ground Consolidation Services received a call from a facility manager in Norcross, GA about an uneven walkway in a high-traffic office park entryway. He scheduled an appointment as soon as possible, well aware that potential trip hazard litigation could be costly.

The GCS crew arrived at the office park and immediately began the repair. We used Alchemy-Spetec’s AP Lift 430 high-strength polyurethane foam and super-easy Jack Attack System, specifically designed for manipulating small slabs. Once the slabs were injected with AP Lift 430 that compacted loose soil and filled any voids underneath, they were lifted back to their original level position.

The facility manager thanked GCS for lifting an enormous weight off his shoulders. Now he could get back to business without worrying about any trip hazards!

Void Fill Under Dining Room Floor in Decatur

Recently, a concerned homeowner in Decatur, GA reached out to Ground Consolidation Services about a busted water line beneath his dining room. As often happens this issue went undetected for a lengthy amount of time. A plumber had to cut out a portion of the concrete floor in order to repair the leaking pipe. As the homeowner suspected, severe erosion had taken place under the foundation slab, leaving a sizable void—as much as a 1’ in some areas. After the pipe was repaired, the concrete was replaced. But the homeowner shared a photo with us of the cut-out area in the middle of his dining room.

The GCS crew arrived at the house and conducted a thorough inspection via small drill holes in order to determine the exact size of the void. One possible option would have been to completely remove the slab and replace the concrete, a near-impossible task on an interior foundation slab. Instead, the team injected Alchemy-Spetec’s AP Lift 430 high-strength polyurethane foam through the slab through 3/8” injection holes, filling any empty space and compacting all the loose soil.

Thankfully, the GCS team was able to stabilize the soil and fill the void beneath the slab in just 1 hour. The owner was quite pleased.

Void Fill Under Parking Garage Entrance in Buckhead

Right before Christmas, the owner of a heavily trafficked commercial building in the Buckhead area of Atlanta, GA called in Ground Consolidation Services to fill sub slab voids in their parking garage entrance. Slab settlement coupled with cracking of the joint nosings led to the diagnosis. He was serious about getting the repair completed quickly. Cars needed somewhere to park!

The GCS crew arrived at the site and got right to work. We injected Alchemy-Spetec’s AP Lift 430 high-strength polyurethane foam through the slab, filling any empty space and stabilizing the entrance from any future settlement. The slab was also lifted back to its original level position.

Our experts were able to return the entrance to full functionality in just 1 hour, all while keeping the driveway open! The owner couldn’t have been happier.

Lifting a Garage Slab in East Cobb

This past week, a resident in East Cobb, GA reached out to Ground Consolidation Services about multiple cracks and settlement issues in his garage. Given that he parked his vehicle in his garage on a daily basis and used it to enter and exit his home, he was eager to get the slabs back in place. The GCS crew showed up for the appointment and inspected the entirety of the concrete slab. We observed that several sections had cracked, mainly as a result of poor compaction and seasonal freezing temperature fluctuations. To make matters worse, the cracked sections had sunk into the soil void underneath.

To repair the damage, we drilled non-invasive 3/8” holes through the slab and injected Alchemy-Spetec’s AP Lift 430 high-strength polyurethane foam. Once injected, the rapidly expanding foam compacted the loose soil underneath, filled in any remaining voids, and lifted the slab, curing to 90% in just 15 minutes. We also used a concrete polymer-blended material to seal cracks across the garage. The homeowner praised the GCS team for their speed and accuracy. He was even happier to have a level, crack-less garage!

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!

Saving a Luxury Buckhead Penthouse from Costly Water Damage (Just in Time!)

Ground Consolidation Services was recently called in to seal off a rain-induced ceiling leak in a new construction high rise penthouse suite in Buckhead. Sealing off the water intrusion from the roof above was not an option, due to the rooftop swimming pool directly above the penthouse. So, we had to get into the ceiling from the interior of the suite and inject from the underside.

We injected Spetec PUR F400, a water-reactive, hydrophobic, flexible, single component polyurethane resin. This product is ideal for sealing off active leaks in cracks. In this case, the leak was shut down in less than two minutes. This all went down literally right before the new tenant was scheduled to begin moving in. (No pressure there!)

We are constantly amazed by the wide variety of scenarios in which we’re able to utilize these products. No two days are the same and they’re definitely never dull!

Concrete Leveling at Ponce City Market in Atlanta

Ground Consolidation Services was called in to eliminate trip hazards at the popular Ponce City Market in downtown Atlanta recently. There were a couple of areas of heavily traveled walkway that had settled over time to the point of becoming a trip hazard. The property management team was diligent in recognizing these issues early before repair became more invasive as well as more expensive. More importantly, they addressed the issue before any accidents occurred which would undoubtedly be followed by costly litigation. Oftentimes we see trip hazards removed by simply grinding down the concrete. While in the short term this may work it does not address the reason the concrete is sinking in the first place and eventually you run out of concrete to grind. Injecting our high strength polyurethane foam through the concrete via small 3/8 inch holes fills any voids, compacts unstable soil, and lifts the concrete back to its original position. Trip and fall lawsuits are a big business however they can be easily avoided with a little property maintenance. If you notice any uneven or sinking concrete around your properties give us a call for a free evaluation. We would love to help!

Leveling and 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!

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.