Alchemy-Spetec Blog

Reminder - Register for Fall Geotech Training

Posted by Kreg Thornley on Sep 8, 2022 10:00:00 AM

Banner - Reminder-Geotech Training Program Fall 2022

Alchemy-Spetec HQ in Tucker, GA

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

AS-Training-Program---Fall-2021$745 Registration Fee
$665 for each additional participant from
the same company.

Get ready for a thorough education in Slab Lifting, Soil Stabilization, the Alchemy-Spetec Deep Lift® process, equipment, and applications. You’ll get hands-on training from a technical staff with decades of on-the-job experience.

Tuesday, October 4th

  • Geotech Product Line Overview
  • Geotech Applications & Case Studies
  • MixMaster Pro Slab Lifting Gun
  • Slab Lift Rig Demonstration

Wednesday, October 5th

  • Pump Demos & Training
  • PolyShark® / Soil Stabilization
  • Deep Lift® 
  • Ground Penetrating Radar

Thursday, March 31st

  • PolyBadger® Mobile Slab Lifting System
  • Estimating Material for Jobs

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

Topics: Equipment & Accessories, All Posts, Lift Slabs, Stabilize Soil, Business Tips, Deep Lift, Fill Voids

Case Study - Repairing a Leak in a Retention Pond

Posted by John Knieper on Aug 30, 2022 10:00:00 AM

Banner - Repairing a Leak in a Retention Pond

Body - Repairing a Leak in a Retention PondThis post is part of the Alchemy-Spetec Contractor Lens series, featuring views, news & case studies written by our customers. This article, written by John Knieper of SiteMix Pressure Grouting LLC, provides an overview of a retention pond repair job. If you're an Alchemy-Spetec customer and you'd like to discuss writing content for our blog, please send an email to marketing@alchemy-spetec.com today!

A property management company in metro Atlanta contacted SiteMix Pressure Grouting, LLC to address an issue with a neighborhood retention pond that was not holding water at the proper level. The customer reported that the water level was not running through the top of the concrete outlet control structure as designed but water was exiting on the other side of the earthen dam through the concrete outlet pipe. Upon inspection, it was discovered that the pond water was piping along the outside of the concrete outlet pipe and leaking back into the outflow pipe through several bad joints in the concrete pipe.

Powerful Polymers

The SiteMix Pressure Grouting crew choose AP Fill 700, a single component, water-activated, hydrophobic, low viscosity, closed-cell polyurethane injection resin for the repair. Specifically, AP Fill 700 is NSF-approved for contact with drinking water, safe for the environment and allows the crew the ability to adjust the catalyst for set time. The polyurethane material is ideal for permeating soil, filling voids and water cutoff.

AP-Fill-700-Data

Painless Procedures

AP Fill 700 was injected on 18-inch centers around the base of the OCS and outlet pipe in order to inject resin into the flow of the piping water. Specifically, the set time of the resin was reduced so that the piping water would take the resin the length of the pipe to the leaking joints. The goal was to have the AP Fill 700 react from downstream back up to the OCS. Crew members observed the pipe joints until AP Fill 700 presented and all the leaks stopped.

Rapid Results

The job took one day to complete and less than 50 gallons of resin. Within three days the pond was at full pool and the management company and neighborhood residents were very satisfied with the work.

Want more information on geotech products?

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Seal Leaks, Stabilize Soil

Reminder - Fall Geotech Training: October 4th - 6th, 2022

Posted by Kreg Thornley on Aug 29, 2022 10:00:00 AM

Banner - Reminder 2 Fall Geotech Training

Alchemy-Spetec HQ in Tucker, GA

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

AS-Training-Program---Fall-2021$745 Registration Fee
$665 for each additional participant from
the same company.

Get ready for a thorough education in Slab Lifting, Soil Stabilization, the Alchemy-Spetec Deep Lift® process, equipment, and applications. You’ll get hands-on training from a technical staff with decades of on-the-job experience.

Tuesday, October 4th

  • Geotech Product Line Overview
  • Geotech Applications & Case Studies
  • MixMaster Pro Slab Lifting Gun
  • Slab Lift Rig Demonstration

Wednesday, October 5th

  • Pump Demos & Training
  • PolyShark® / Soil Stabilization
  • Deep Lift® 
  • Ground Penetrating Radar

Thursday, March 31st

  • PolyBadger® Mobile Slab Lifting System
  • Estimating Material for Jobs

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

Topics: Equipment & Accessories, All Posts, Lift Slabs, Stabilize Soil, Business Tips, Deep Lift, Fill Voids

Reminder - Geotech Training: October 4th - 6th, 2022

Posted by Kreg Thornley on Aug 25, 2022 10:00:00 AM

Banner - Reminder-Geotech Training Fall 2022

Alchemy-Spetec HQ in Tucker, GA

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

AS-Training-Program---Fall-2021$745 Registration Fee
$665 for each additional participant from
the same company.

Get ready for a thorough education in Slab Lifting, Soil Stabilization, the Alchemy-Spetec Deep Lift® process, equipment, and applications. You’ll get hands-on training from a technical staff with decades of on-the-job experience.

Tuesday, October 4th

  • Geotech Product Line Overview
  • Geotech Applications & Case Studies
  • MixMaster Pro Slab Lifting Gun
  • Slab Lift Rig Demonstration

Wednesday, October 5th

  • Pump Demos & Training
  • PolyShark® / Soil Stabilization
  • Deep Lift® 
  • Ground Penetrating Radar

Thursday, March 31st

  • PolyBadger® Mobile Slab Lifting System
  • Estimating Material for Jobs

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

Topics: Equipment & Accessories, All Posts, Lift Slabs, Stabilize Soil, Business Tips, Deep Lift, Fill Voids

Geotech Training: October 4th - 6th, 2022

Posted by Kreg Thornley on Aug 23, 2022 10:00:00 AM

Banner - Geotech Training Fall 2022

Alchemy-Spetec HQ in Tucker, GA

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

AS-Training-Program---Fall-2021$745 Registration Fee
$665 for each additional participant from
the same company.

Get ready for a thorough education in Slab Lifting, Soil Stabilization, the Alchemy-Spetec Deep Lift® process, equipment, and applications. You’ll get hands-on training from a technical staff with decades of on-the-job experience.

Tuesday, October 4th

  • Geotech Product Line Overview
  • Geotech Applications & Case Studies
  • MixMaster Pro Slab Lifting Gun
  • Slab Lift Rig Demonstration

Wednesday, October 5th

  • Pump Demos & Training
  • PolyShark® / Soil Stabilization
  • Deep Lift® 
  • Ground Penetrating Radar

Thursday, March 31st

  • PolyBadger® Mobile Slab Lifting System
  • Estimating Material for Jobs

THIS EVENT HAS BEEN CANCELLED

Sign Up to Get Notified for Future Training Events

Topics: Equipment & Accessories, All Posts, Lift Slabs, Stabilize Soil, Business Tips, Deep Lift, Fill Voids

Case Study - Deep Soil Stabilization at Residential Property

Posted by Kreg Thornley on Aug 18, 2022 10:00:00 AM

Banner - Deep Soil Stabilization at Residential Property

Body---Deep-Soil-Stabilization-at-Residential-PropertyThe residents of a house in Columbia, Missouri noticed the floor in their finished basement was settling. The slab was beginning to sink along the base of a load-bearing wall. It turned out that there was no structural support beneath that area of the floor. They reached out to Absolute Foundation Repair, a local geotechnical contractor. Alchemy-Spetec Geotech Services Technician Jacob Bryant was invited by the contractor to consult on the job as well.

Powerful Polymers

AP Lift 430 is a two-component, high-strength, high-density, hydro-insensitive structural polyurethane foam. This very reliable and consistent material was selected because it is ideal for strengthening and compacting soil. This high-strength closed cell polyurethane bonds with soil and concrete. After installation, the site is often traffic ready in as soon as 15 minutes. AP Lift 430 is also certified to NSF/ANSI/CAN 61 (approved for contact with drinking water).

AP Lift 430 Data

Painless Procedures

The Alchemy-Spetec technical consultant worked closely with the geotech contractor to develop the injection plan. The crew removed the carpet and then drilled holes every three feet along the length of the affected area. Next, they drove injection tubing through each drill hole, four feet deep into the soil beneath the slab. A technician then injected about 20-40 lbs of AP Lift 430 per tube. The crew monitored for lift during this process. The slab was raised about 1/8 - 1/4 of an inch to ensure that the soil was fully compacted. Next, they injected additional material just beneath the slab (a.k.a. shallow injections) to fill any remaining voids. Finally, they removed the tubes and cleaned up the site.

Rapid Results

After only a few hours, the job was completed, and the site was completely cleaned up. The customer was able to conduct her previously scheduled dance class on that same floor later that day.

Want more information on geotech products?

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Stabilize Soil, Deep Lift

Case Study - Repairing a Leaky Pipe & Sinkhole on a Residential Property

Posted by David Park on Aug 4, 2022 10:00:00 AM

Banner - Repairing a Leaky Pipe & Sinkhole

Body - Repairing a Leaky Pipe & Sinkhole

In the city limits of Atlanta, a couple was surprised to see a sinkhole forming in their home’s front yard. They became quite alarmed as within just a few weeks it swallowed their sidewalk and a decent portion of the property in front of the home. They notified the city. 

After the City of Atlanta quickly got involved, some investigation revealed an old brick storm sewer running approximately 25-30 feet under the front of the property. Across the country, there is lots of brick infrastructure that’s still in service and in some cases over 100 years old. These outdated structures suffer from infiltration of groundwater which often erodes soil, as well as causes subsidence above. In this case, cameras revealed that several bricks had become dislodged, creating a pathway for soil and groundwater to get in. The end result was a rapidly forming sinkhole.

The City of Atlanta was already consulting with Alchemy Spetec on some other projects, so they asked us to take a look. After reviewing the available information and making a site visit, it was determined that a multi-step plan would need to be undertaken to seal the pipe and reestablish soil compaction.

Powerful Polymers

The single-component polyurethane AP Fill 700 was selected for the sealing of the pipe and for the compaction grouting of the above soils. AP Lift 430 would be kept on standby in case further grouting was required to stabilize under the home foundation itself. As it turns out, this was indeed the case.

  • AP Fill 700 has an adjustable set time and is highly expansive. It works in wet environments, perfect for this project. It can permeate loose soils and gravel and achieve compressive strengths in excess of 1000 psi.
  • AP Lift 430 is fast and expands 24 times its original volume. It is strong and can support 7,000 lbs per square foot.
  • Both products are NSF ANSI 61 approved as safe for potable water contact. This certification provides reassurance that these products will not leach any chemicals out into the soil.

Painless Procedures

As previously mentioned, there were several steps that had to be undertaken to complete this project. First, the bricks that had become dislodged were reaffixed back into place. Once that breach was sealed, AP Fill 700 was injected through the pipe walls in multiple areas around the breach. AP Fill 700 reacts when it contacts moisture and there was no lack of that at 25 feet deep. Regardless, twin streaming through an F-Valve Assembly was implemented to ensure a good resin/water mix. This approach rapidly filled all of the voids surrounding the pipe and also sealed several other small areas of weeping water infiltration.

The second step was to fill the sinkhole with loose dirt and gravel and then permeate that with AP Fill 700 to squeeze the soil and lock all of the backfill together. Half-inch injection pipes were installed down to the top of the pipe, then soil and gravel were backfilled to the surface. Once the backfill was in place, AP Fill 700 was injected and the probes were slowly extracted to insure a uniform measure of polymer throughout the soil column. When this is done in a grid pattern, the result is a lot of increased compaction and bearing capacity.

Once the sinkhole was repaired, concern remained about loss of soil compaction under the foundation of the home. The steps leading up to the front porch had settled away from the home indicating further bad soil was likely the case.

Alchemy-Spetec is a dealer for Pagani, a dynamic cone penetrometer (DCP) manufacturer out of Italy. We brought our unit out to the property and did 6 penetrometer tests across the front of the home next to the foundation. Four of the six tests revealed weight of hammer (WOH) readings which basically means zero compaction. The soil could not even support the weight of our machine. The city was on site to see the tests and immediately approved the compaction grouting beneath the front foundation. This is where the AP Lift 430 came into play.

Half-inch injection probes were installed across the entire front of the home next to the foundation. Probes were installed down to 8 feet which is where the soil became much stronger. AP Lift 430 was injected while the crew slowly extracted the probes - until lift was observed on the home. When lift was detected, the grouting ceased. This process was repeated across the entire front of the home on 4-foot spacing.

After the compaction under the footing was reestablished, the front steps that had settled away from the house were lifted back into place using AP Fill 430.

Rapid Results

The job was completed quickly without any excavation and dewatering. No curbs, road base, or utilities had to be removed or relocated. This approach saved enormous amounts of additional cost and delays.

Want more information on leak seal and geotech products?

Download the Info-Packed Leak Seal Product Catalog!

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Lift Slabs, Seal Leaks, Stabilize Soil

Case Study - Stabilizing a Pharmacy Under Construction

Posted by Lewis Evans on Jul 19, 2022 10:00:00 AM

Banner - Stabilizing a Pharmacy Under Construction

Body - Case Study Stabilizing a Pharmacy Under ConstructionThis post is part of the Alchemy-Spetec Contractor Lens series, featuring views, news & case studies written by our customers. This article, written by Lewis Evans of Stable Soils, provides an overview of polyurethane concrete repair material. If you're an Alchemy-Spetec customer and you'd like to discuss writing content for our blog, please send an email to marketing@alchemy-spetec.com today!

In Orlando FL there was a new commercial development that included a pharmacy to be constructed. Prior to the commencement of construction, a geophysical survey was undertaken to determine if site conditions were suitable for building. The survey included soil borings and DCP (dynamic cone penetrometer) readings to determine soil compaction.

The results of the survey indicated a layer of Florida muck between 10’ and 5’ below grade: this is very typical in Florida. The engineers recommended excavation down to 10’ to remove the muck from the entire building pad area as well as the entire parking lot area. After the de-mucking process, fill was to be brought in and compacted prior to pouring the building pad and preparing the parking lot for asphalt paving.

When the site work contractor informed the general contractor that the site was prepared, the GC called in the engineer to do some testing and sign off on the site work. Testing revealed that in a majority of the parking lot area, only the upper area of the soil had been excavated and replaced but the muck still was in place between 5' and 10’ deep. Some corners had been cut and the project came to a halt.

At this point, the curbs were in, the crush and run had been put down, and all utilities were already in the ground including water, gas, sewer, electrical, and fiber optic. The engineer presented them with two options:

  1. Remove all the utilities, dig up the entire parking area site, and do it as they had recommended in the beginning.
  2. Use 2-component polyurethane injection in a grid pattern and at different depths, to densify the soils and muck.

To remove everything and start over was going to take in excess of 2 months to complete. Facing liquidated damages from the property owners for the delays, this was going to be extremely expensive and would most likely end up in litigation. The soil stabilization with the polyurethane foam was selected as the method for the following reasons:

  1. Installation in less than one week
  2. No excavation required
  3. Clean installation and environmentally safe product
  4. Proven system used by departments of transportation - DOT
  5. Factory trained, engineer approved contractor

Powerful Polymers

The polyurethane material used in this project was Alchemy-Spetec's AP Lift 475. Alchemy-Spetec rigid polyurethane foams start out at 7000 PSF bearing capacity. This rating is based on the unconfined strength of the foam. In the soil or beneath concrete the polymer will increase in strength up to 15X. For comparison, the compaction requirements for pouring slabs or building roads are about 2000 to 2500 PSF. 

Painless Procedures

AP Lift 475 was installed in a grid pattern and at different depths. The polyurethane expanded as it was installed (up to 24X by volume), and solidified the muck and unstable soil. The parking area soils were densified to the requirements of the engineer.

Rapid Results

The job was completed in just 5 days. No curbs, road base, or utilities had to be removed or relocated saving enormous amounts of additional cost and delays.

Want more information on geotech products and equipment?

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Stabilize Soil

Resources for Infrastructure Repair Contractors

Posted by Kreg Thornley on May 31, 2022 10:00:00 AM

Banner - Resources for Infrastructure Repair Contractors

Body - Resources for Infrastructure Repair ContractorsAlchemy-Spetec offers a wide variety of online resources for current and aspiring infrastructure repair contractors. Let's take a look at what's available...

Literature Downloads

Looking for polyurethane concrete repair product Tech Data Sheets, Safety Data Sheets, Application Procedures, Case Studies, Environmental Safety Info, or Specifications?  All of these documents are available on one convenient page at Alchemy-Spetec's Comprehensive Download Resource Center.

Educational Videos

Watch brief, info-packed videos on crack injection, curtain grouting, slab lifting, and soil stabilization on the Videos page.

Spray Foam to Slab Lift Conversion

With just four additional pieces of equipment and one set of material, you can quickly and easily add slab lifting to your service offerings. Take a look at exactly what additional equipment and material you’ll need to get started on the Spray Foam to Slab Lift Conversion page.

Training Center

The Alchemy-Spetec Training Center is a password-protected resource-packed page featuring video presentations and product/equipment demos. This page is only available to established customers who have requested access from their Regional Manager.

Injection Connection Podcast

The Injection Connection podcast features in-depth discussions with thought leaders and professionals in the infrastructure repair industry.

Want more information on Alchemy-Spetec products?

Download the Info-Packed Leak Seal Product Catalog!

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Lift Slabs, Seal Leaks, Stabilize Soil

Lift Sunken Slabs & Stabilize Loose Soil Caused by Uncontrolled Water

Posted by David Park on May 26, 2022 10:00:00 AM

Banner - Lift-Sunken-Slabs-&-Stabilize-Loose-Soil

Body - Lift-Sunken-Slabs-&-Stabilize-Loose-SoilMost property owners and managers don’t realize that the greatest threat to their slabs and structures hides underneath the surface of the ground. Water is relentless, and your property is at risk if it is left unchecked. Uncontrolled water can lead to soil erosion, voids, and sometimes even sinkholes. Neglecting these types of soil issues can end up costing significant money, time, and stress.

We believe that every property owner and manager should understand how to prevent these problems from getting out of control. Water must be controlled properly, and with the right solutions. Alchemy-Spetec offers a variety of polyurethane resins for lifting sunken slabs, stabilizing soil, and filling voids underneath foundations and slabs. We are a global manufacturing company certified to ISO9001. Our polyurethane resin technology has been successfully used on a multitude of projects spanning the globe. It's also environmentally friendly (NSF certified for contact with drinking water).

Raising & Lifting Concrete

Sunken concrete slabs can be lifted back into place with our two-component polymer foams designed to work in wet or dry conditions. The expansion force of the concrete leveling foam coupled with the pressure of a specialized pump generates enough controlled force to lift virtually any structure back into position with 1/8” precision. Polyjacking (a.k.a. slab lifting and concrete lifting) can be accomplished at a fraction of the cost and time required for replacement using our AP Lift series of resins. The Deep Lift® process may be necessary if deeper soil issues are undermining the slab or structure.

Polyurethane Slab Lifting Products

Stabilizing Soil

Unstable, eroded, or loose soil around infrastructure can result in settlement and damage to the structure. Voids can be filled, seawalls remediated, soil consolidated, and water migration halted by permeating the soil with our ultra-low viscosity resins

Polyurethane Soil Stabilization Products

3-Step Property Preservation Plan

Eliminate the risk of a total loss to your property and contact our team of experts now to start your Property Preservation Plan. With our support, you can save your property, save your money, and save your peace of mind.

  1. Start a conversation with one of our experts about your specific challenge/property.
  2. We will work with you to create an action plan custom-tailored to your needs.
  3. We will connect you to a factory-authorized contractor who will help you solve your problem.

Sign Up for a Consultation Now!

Topics: All Posts, Lift Slabs, Stabilize Soil, Fill Voids