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Polyurethane Leak Seal for Basement Walls

Posted by John Ziebell on Mar 26, 2020 10:00:00 AM

Banner Graphic - Polyurethane Leak Seal for Basement Walls

Body Graphic - Polyurethane Leak Seal for Basement WallsToday’s guest blogger is John Ziebell, an independent representative of Alchemy-Spetec. Formerly the Vice President of Operations for Deneef Construction Chemicals, Inc., John has 36 years of experience in the chemical grout industry and is currently a member of the International Concrete Repair Institute (ICRI).

Recently, I visited a homeowner in Elkhart, Texas whose basement flooded after a heavy rainstorm. The house was three years old, and this was the first time water had entered the home. When we went into the basement, I saw that a water-repellent coating was applied to the below-grade walls during initial construction, but it was unclear if a water stop had been installed at the wall joint.

To test for the leak source, I suggested installing soaker hoses in the flower beds adjacent to the basement wall, flooding the beds for several hours, and confirming if water appears at the wall or floor joints. I also recommended two different options to prevent further leaks:

Option 1 – Polyurethane Crack Injection

If the cracks in the basement walls can be clearly identified and there aren’t too many of them, the contractor should use the polyurethane crack injection procedure. First, they’ll need to remove any surface contamination with a grinder. Then, they can drill holes spaced about 1 foot apart at a 45° angle to intersect the middle of the crack or joint and flush all of the injection holes with clean water until water runs from hole to hole. Once the water flow is confirmed, they can inject the crack or joint with Spetec PUR F400 (and GEN ACC Accelerator) until it’s completely full.

Option 2 – Polyurethane Curtain Wall Grouting

If cracks in the basement walls are difficult to identify the contractor should use the polyurethane curtain wall grouting procedure. First, they’ll need to remove any surface contamination with a grinder and drill holes in a diamond grid pattern (see photo included with this post). Then, beginning at the bottom of the wall, they can inject the holes with Spetec PUR H100 (and GEN ACC Accelerator) until they reach the top of the wall.

Many people ask if grouting only around the bottom next to the leaks is effective, but this is seldom the case. Grout is injected through the entire wall because any excess grout flows down over the previous injection area, creating a lapping effect like shingles on a roof.

Both options have their advantages depending on the situation: polyurethane crack injection is a cost-effective, pinpoint approach that is ideal for a small number of clearly identifiable cracks, while curtain wall grouting is a pricier approach that is ideal for a larger number of difficult to identify cracks.

Want more information on choosing the right leak seal products and application for your project?

Download an Info-Packed Leak Seal Methodology Brochure!

Topics: All Posts, Seal Leaks

Adam Tracy on How Long It Takes to Develop Field Competency for Leak Seal Grouting

Posted by Kreg Thornley on Mar 5, 2020 9:46:27 AM

Banner - Adam Tracy on How Long It Takes to Develop Field Competency for Leak Seal Grouting

Body - Adam Tracy on How Long It Takes to Develop Field Competency for Leak Seal GroutingThis article is an excerpt from Episode 4 of The Injection Connection, featuring Adam Tracy of A-1 Foundation Crack RepairThe Injection Connection is hosted by Jim Spiegel: Vice President of Alchemy-Spetec and Board Member at the International Concrete Repair Institute.  (If you'd rather listen, an audio version of this exchange is posted at the bottom of the article.)

Jim: Where do we find talent? That’s a big thing in our world especially being so niche of an application. How do you find talent? One of the things that we like to look at is, getting somebody with an engineering mind, such as yourself - engineering or architectural mind that just knows buildings and knows the X’s and O’s of the construction world and just get them on site, just to learn. We think that could be the one-two punch to really get good, competent people out there. You’re a perfect example of it. You come in with a very high level of understanding of the construction world and building in general and then couple that with some field training and you’re pretty lethal as far as your effectiveness in the field.

To that point, how long do you think it takes? Say somebody coming out of college: I have a bachelor’s in engineering, maybe I don’t want to work in an engineering firm, maybe I want to get into the sales side with the manufacturer building products. How long do you think it takes in field time with chemical grouting until you’re up and running and you really know the nuances of a lot of what happens out there?

Adam: That’s a tough question. I’ve used myself as a little bit of an example because while I’d been around it for a while because I had gone my own path for a period of time right out of school, it was kind of just there and didn’t really know much about it. Doing it every day, it was a good with my educational background being an engineer in the civil engineering space.  Knowing building and construction, it took me a good two, three months of every day (hands-on application to really understand the limitations, the successes, how it works, why it works, which product is going to be most successful, in which application) until I was comfortable being able to see the solution before I even put a drill to a wall. The fortunate thing is that I was able to rely on years of construction experience and being in these green builds whereas somebody who might be right out of school has never been on a site, has never thrown on the hardhat and the vest and walked around. So there’s a whole learning curve to that as well. But again, the field experience I think is critical in any industry. Especially as you get into more and more isolated niche industries, your opportunity to learn is few and far between on a study level. The field experience becomes your classroom.

When we bring people on, talking about finding good people, if we find somebody who has any experience in injection grouting, it’s a diamond, it’s a needle in a haystack so to speak. There’s a significant training curve on our end to bring talented people who have this construction experience to a level of being able to be proficient in the trade.

It’s a tough thing because everyone’s individual but the more time in the field, I think, is critical because, again, if you happened to be taught it in some educational level, it was a leap on the radar and it was quickly moved past as part of envelope education study whereas the actual time in the field really becomes your classroom, like I said.

Jim: Absolutely. It’s your point though or kind of to the point, two or three months was effectively your gut, visceral reaction there to time in the field. Compared to some other industries, that’s not all that long.

Adam: No but that was an everyday obligation.

Jim: Exactly. You take like a manufacturer rep for instance who might be on site once a month for a few hours to add that time up to be two months, constant trained would take years to become that well-versed.

Adam: In like anything. I’ve lived in that sales role as a manufacturer sales rep and while you may know the spec sheet of your product inside and out, that doesn’t tell you the whole story of the product that you’re going to use. It’s when it’s applied in the field whether it’s a pump or a truck or a crane or chemical grouting, it’s the performance in the real world beyond the spec sheet that tells you or completes a picture of your education on the product.

For those who are on the manufacturing side, the time in that field, actually doing the work I think is one of the most critical parts of it.

Jim: For sure. We liken it to a mechanic who can listen to an engine and give you a pretty good of what he’s up against. Very similar in the field, Charlie, who I mentioned, I think he’s been in the field services role for 15, 16 years as well and he can tell you what’s happening by the way the hose is jumping for instance on each stroke, and the sound of the stroke for instance. There’s a lot of that mechanic level field support that just isn’t that readily available in the chemical grouting world. We put Charlie in the field services director role because, and this is not intended to go into a sales pitch but just to your point that a lot of manufacturers are kind of shying away from the field support where you have to be out there seeing so many customers and making so many calls and it’s like a telemarketing solution sometimes for an industry that is so critical for accuracy in the field.

I agree with you completely. We actually tell our guys, you said you had experience on the sales side of it from manufacturer, and we tell all of our guys and girls – get in the field and spend time with the contractors. I still go out in the field. I was just on a job a couple of Fridays ago, we were doing polyacrylate gel injection. I was on the gun and I was saying to the technicians – you guys tell me, instruct me a little bit what you see out here because a couple of people who were out there had significant experience.

To your exact point, manufacturers can read spec sheets and tell you little nuances of performance from TDS but until you know what the gun feels like, the guys in the field are still probably head and shoulders above you.

Adam: Yeah, for sure. And it’s always tough to be in that role where you’re supposed to be the expert and asking for help. I’ve been in those situations, it’s always uncomfortable as being on the manufacturer side to say, "okay, what would you guys do here?"...you know, being the guy with 30 years of experience.

Want more information on leak seal methodology?

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Topics: All Posts, Seal Leaks

Adam Tracy on What Can Be Improved in the Chemical Grouting Industry

Posted by Kreg Thornley on Mar 3, 2020 3:20:58 PM

Banner - Adam Tracy on What Can Be Improved in the Chemical Grouting Industry

Body - Adam Tracy on What Can Be Improved in the Chemical Grouting IndustryThis article is an excerpt from Episode 4 of The Injection Connection, featuring Adam Tracy of A-1 Foundation Crack RepairThe Injection Connection is hosted by Jim Spiegel: Vice President of Alchemy-Spetec and Board Member at the International Concrete Repair Institute.  (If you'd rather listen, an audio version of this exchange is posted at the bottom of the article.)

Jim: In a more general sense with the chemical grouting industry, what do you think, and I may be putting you on the spot here a little bit, but what do you think is lacking or what could be improved in the industry? Do you have opinions on that? Maybe from a product standpoint, maybe from a service standpoint, from the manufacturer’s side? Do you have any thoughts on that?

Adam: I’ve had a pretty unique entry into this industry because I’m from totally outside of the industry. Even though this is a family business, I actually spent the first ten plus years of my career as a manufacturer rep in the fire protection space. So, I’m coming at this industry as a very different set of eyes. I’m actually an engineer in civil engineering and I would definitely say that it’s a niche industry in a lot of ways, which prevents its usage I think because I don’t think it’s well taught on an educational level and I don’t think the awareness is very high amongst a lot of engineering firms as well. 

It’s a process that is unique in a lot of ways but it’s not revolutionary. I think while it’s one tool in the tool belt as we discussed, I think having that in an engineer’s hands is very important because a lot of times solutions that are tried more often or may have a higher success rate on the positive side are just cost prohibitive. And the building is not set up to be able to do that kind of stuff post construction and where chemical grouting is really just the best, most cost-effective, high result solution for that particular application.

I would definitely say that on a commercial level the grouting process needs to have a little bit higher expansion in educational areas to make sure that kids coming out of schools and going in for their PEs and trying to get their feet under them and provide solutions to their clients know that this is a proper solution that is tried and true and is very successful.

In my world, where it’s a lot of residential, that’s half of what my job is on a day to day conversation with a customer is explaining what we’re doing because it’s a lot of black magic in their eyes because it’s something totally different. They were looking for the black spray in the can that you used to spray in the bottom of your screen door boat there, off the shelf as a solution and they‘re trying to figure out why it didn’t work. And really, we’re trying to just educate them a little bit as well.

We’ve had projects in the past where they’ve spent a tremendous amount of time on the specifications and the procedures on how to address an issue. We had a project at a wastewater treatment plant where it’s 24-inch walls, thick walls with rebar everywhere, and they were tall. And they’re just trying, there’s not a lot of experience, there wasn’t a lot of manufacturer help in terms of how to really identify the process to do this successfully. So, when we get in there and we look at the specifications, it’s hobbled together by somebody who’s never seen this process in the real world. It was essentially set up for failure in a lot of ways because the process was wrong for this particular application, and trying to go through change orders of the process was a very difficult situation - just because we knew as a contractor doing it for as long as we have that the amount of time and effort that they were going to be focused on their particular process was going to be set up incorrectly and set up for failure mostly because, again, they had a set of people on this thing who have read about it and were very unaware of the infield techniques that are required to be successful in it, and really just tried to be by the book on it without any sort of experience.

I think that in the industry, there would be a huge benefit across the board in my eyes to really start at the educational level, civil engineering programs, construction management programs, to really focus on that. I think manufacturers have some responsibility as well as contractors to give a two-pronged approach so that people are educated both on the technology itself and the actual application and how it gets done.

Jim: I couldn’t agree more.

Want more information on Alchemy-Spetec leak seal products?

Download an Info-Packed Leak Seal Brochure!

Topics: All Posts, Seal Leaks

Interview with Adam Tracy of A-1 Foundation Crack Repair

Posted by Kreg Thornley on Feb 25, 2020 5:35:39 PM

Banner-Graphic---Injection-Connection-Episode-4

Body-Graphic---Injection-Connection-Episode-4Adam Tracy, of A-1 Foundation Crack Repair, is the guest on Episode 4 of The Injection Connection.  Adam offers a unique perspective into the residential leak seal industry through his Civil Engineering education. Adam and Jim discuss differences in residential vs.commercial projects, as well as finding new talent, learning from contractors, and more.

Host Jim Spiegel is Vice President of Alchemy-Spetec and Board Member at the International Concrete Repair Institute.

Listen to the episode in its entirety below, or check it out on TheInjectionConnection.com and the following platforms:

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, Seal Leaks

Quantifying Chemical Grouting Effectiveness with The QP Factor

Posted by Jim Spiegel on Feb 13, 2020 3:24:16 PM

Quantifying Chemical Grouting Effectiveness

Quantifying Chemical Grouting EffectivenessThis blog post features Episode 2 of Alchemy-Spetec's The Injection Connection podcast.

This is a presentation given to an engineering firm regarding the new patented leak seal QA/QC system The QP Factor: the first patented method to quantify leak seal grouting and leak seal effectiveness.

As mentioned in our previous post on this system...

The method of testing requires additional drill holes to be placed at pre-determined locations along the crack, joint, or substrate being sealed. Prior to injection of chemical grouts such as Spetec PUR F400, Spetec PUR HighFoamer, or Spetec PUR GT500, the test hole is connected to a digital touch-screen device that is calibrated to provide water pressure, flow, and flow/pressure information that is extractable in excel format from a convenient USB port.  Following initial testing, the test port is then plugged during chemical grouting operations to avoid false-positive results after injection. 

The presentation was first unveiled at the International Concrete Repair Institute, National Convention in Jacksonville, Florida, in 2019. Due to the context, there may be some points that seem a little abstract to the average viewer. If you have questions or need more details, please call Alchemy-Spetec at 404-618-0438.

Want more information on The QP Factor?

Download an Info-Packed QP Factor™ Flyer!

Topics: All Posts, Seal Leaks

Announcing QP Factor™ - A Leak Seal Quality Assurance System

Posted by Jim Spiegel on Jan 21, 2020 12:59:26 PM

Announcing QP Factor™ - A Leak Seal Quality Assurance System

Announcing QP Factor™ - A Leak Seal Quality Assurance SystemIn a breaking industry event, Alchemy-Spetec is the first chemical grouting manufacturer to offer the patented Leak Seal quality assurance system, QP Factor.  Currently, the new system is offered only through the Alchemy-Spetec Leak Seal Division.  The QP Factor system offers quantifiable water flow, pressure, and flow/pressure metrics before and after leak seal injection that will provide clients, contractors, and design professionals the industry’s first patented method for proving Leak Seal success. 

The method of testing requires additional drill holes to be placed at pre-determined locations along the crack, joint, or substrate being sealed. Prior to injection of chemical grouts such as Spetec PUR F400, Spetec PUR HighFoamer, or Spetec PUR GT500, the test hole is connected to a digital touch-screen device that is calibrated to provide water pressure, flow, and flow/pressure information that is extractable in excel format from a convenient USB port.   Following initial testing, the test port is then plugged during chemical grouting operations to avoid false-positive results after injection. 

Chemical grouting is then performed per Alchemy-Spetec Field Services Department recommendations.  After grouting is completed, the plug is removed from the test hole, and the water tests are taken again for comparison to the initial test.  The difference in results represent the quantifiable performance increase in leak seal capacity within the substrate. 

For more information on the QP Factor™ system, or for licensing options for use of the patented method in the field, please contact one of our knowledgeable representatives at 404-618-0438. 

Want a list of key features?

Download an Info-Packed QP Factor™ Flyer!

Topics: All Posts, Seal Leaks

Announcing Spring 2020 Infrastructure Repair Training

Posted by Jim Spiegel on Jan 16, 2020 4:11:01 PM

Announcing Spring 2020 Infrastructure Repair Training

Announcing Spring 2020 Infrastructure Repair Training

Leak Seal & Geotech Products & Procedures

March 18th & 19th, 2020 at Alchemy-Spetec HQ in Tucker, GA

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

Wednesday - Leak Seal

  • Leak Seal Product Line Overview
  • Curtain Grouting
  • Permeation Grouting
  • Leak-Seal Product Mixing
  • Pump & Packer Overviews
  • Leak-Seal Accessories
  • Municipal Applications
  • Live Injection Demos
  • Open Discussions

Thursday - Geotech

  • Geotech Product Line Overview
  • Soil Stabilization
  • Geotech Product Mixing
  • Rig & Mobile System Overviews
  • Geotechnical Accessories
  • Slab Lifting Live Demo
  • Deep Lift™ Overview
  • Soil Testing with the
  • GPR & Penetrometer
  • Maintenance Discussions
  • Pricing / Estimating / Cost Savings
  • Open Discussions

Click Here to Register NOW!

Topics: Repair Seawalls, Equipment & Accessories, All Posts, Lift Slabs, Seal Leaks, Stabilize Soil, Business Tips, Repair Cracks, Waterstop, Deep Lift, Floor Repair, Fill Voids

Watch Educational Leak Seal Presentations at World of Concrete 2020

Posted by Charlie "The Grout Geek" Lerman on Jan 10, 2020 2:17:52 PM

Watch Educational Leak Seal Presentations at World of Concrete 2020

Watch Educational Leak Seal Presentations at World of Concrete 2020

World of Concrete 2020 is scheduled for February 4th - 7th, 2020 in Las Vegas, NV.  Alchemy-Spetec will feature the Leak Seal Division & Product Line in the South Hall at location S11307 and the Geotech Division & Product Line in the Silver Lots at location O40551.

Leak Seal Division Booth - South Hall

The Leak Seal booth features a presentation/demo stage with comfortable chairs for audience members and a separate meeting area for in-depth discussions with knowledgeable experts.  Look for the following educational activities:

  • Polyurethane Leak Seal Overview Presentation
  • Crack Injection Demos
  • Crack Injection Presentations
  • Curtain Grouting Demos
  • Curtain Grouting Presentations
  • Polyurethane Product Mixing Demos
  • Acrylic Grout Presentation & Demo
  • Leak Seal QA/QC System

Want more information on Alchemy-Spetec Leak Seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: All Posts, Seal Leaks

Official Initiation Into the World of Polyurethane Leak Seal Application

Posted by Michael Binyaminov on Dec 12, 2019 5:33:30 PM

Official Initiation Into the World of Polyurethane Leak Seal Application

Official Initiation Into the World of Polyurethane Leak Seal ApplicationI just came off my first ever solo field service as a consultant for one of our contractor customers.  The story starts as all good ones do... 

I'm on a parking garage renovation project in Sacramento, California. It’s cold, it’s loud. This is my contractor's first time ever touching polyurethane injection resin.

I arrive with our regional distributor.  We have several pails of Spetec PUR H100 and Spetec PUR F400 (our rigid and flexible foams) in tow.  We begin the process of curatin wall grouting a part of the parking garage that will eventually be converted into an IT server room.

The injection process seemed to be going along just as planned, when suddenly...well...let's just say I’ll never forget the face of one of the crew as some injection resin shot out of the wall and 10 feet through the air!

The fun thing to take from this is that I very quickly remembered a crucial part of my safety training: I need to keep my arms covered. This is not a profession in which you want to walk around a job site with short sleeves. It turned out I had a very expensive wax treatment to go along with my field service!  Aside from this little mishap, the job went well and the customer was extremely happy due to the high-quality tech service provided.  (In addition to my extensive training, I have all the senior Alchemy-Spetec leak seal experts on speed dial).

I said during my Alchemy-Spetec job interview that some day I wanted to be like our Director of Technical Services - Leak Division, Charlie Lerman.  Well here I am, traveling, servicing, succeeding...and occasionallly scraping off the resin afterward.

Want more information on Alchemy-Spetec leak seal products?

Download the Info-Packed Leak Seal Product Catalog!

Topics: All Posts, Seal Leaks

Repairing Dams with Polyurethane

Posted by Charlie "The Grout Geek" Lerman on Nov 14, 2019 11:06:41 AM

Repairing Dams with Polyurethane

Repairing Dams with PolyurethaneDams Across the U.S. in Dire Need of Repair

On a cold morning last March, Kenny Angel got a frantic knock on his door. Two workers from a utility company in northern Nebraska had come with a stark warning: Get out of your house.

Just a little over a quarter-mile upstream, the 92-year-old Spencer Dam was straining to contain the swollen, ice-covered Niobrara River after an unusually intense snow and rainstorm. The workers had tried but failed to force open the dam's frozen wooden spillway gates. So, fearing the worst, they fled in their truck, stopping to warn Angel before driving away without him.

Minutes later, the dam came crashing down, unleashing a wave of water carrying ice chunks the size of cars. Angel's home was wiped away; his body was never found.

"He had about a 5-minute notice, with no prior warning the day before," Scott Angel, one of Kenny's brothers, said.

State inspectors had given the dam a "fair" rating less than a year earlier. Until it failed, it looked little different from thousands of others across the U.S. — and that could portend a problem.

A more than two-year investigation by The Associated Press has found scores of dams nationwide in even worse condition, and in equally dangerous locations. They loom over homes, businesses, highways or entire communities that could face life-threatening floods if the dams don't hold.

Excerpted from AP: At least 1,680 dams across the US pose potential risk
By David A. Lieb, Michael Casey And Michelle Minkoff

Specialty Grouting of Dams with Polyurethane

The recently released news story excerpted above is bringing major attention to the widespread problem of deteriorating dam infrastructure. In most cases, cementitious grout is used to repair dams at risk. But there are certain types of geologies that cementitious grout cannot penetrate or gets washed out of. This is where specialty grouting with polyurethane (and microfine cement) comes in. The following products can be used alongside cementitious grout for optimal results:

Spetec PUR F400
This is a is a solvent and phthalate free, water reactive, hydrophobic, closed cell, low viscosity, shrink-free, flexible, one-component polyurethane injection resin.  It can be used to seal fine cracks in dams that cementitious grout cannot reach.

Spetec AG200
This is a is a three-component, water-swelling hydrogel based on acrylic that hardens into an elastic product.  It can be used to stablize loose soil around dams.

AP Microfine 10
This is a microfine cement that penetrates very small openings such as soil pores and microscopic rock fissures in order to improve strength and reduce permeability.  It can be used in conjunction with Spetec AG200 to add strength to soil stabilization repairs around dams.

While cemententious grouting is the most common grouting method used to stop water flows and strengthen soils for dams, specialty grouting with polyurethane and/or microfine cements can be used to supplement or even replace standard centmentious grouting in areas it has troubles in.

Want more info on Alchemy-Spetec products?

Download the Info-Packed Leak Seal Product Catalog!

Download the Info-Packed Geotech Product Catalog!

Topics: All Posts, Seal Leaks, Stabilize Soil