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Chemical Grouting

Understanding Chemical Grouting

Chemical grouting is a cutting-edge technique that has been gaining traction in various industries over the past decades, primarily for its prowess in addressing a myriad of structural, environmental, and geotechnical challenges. Often, these challenges are intertwined with issues of water migration or infiltration.

The Power of Polyurethane Chemical Grout

At the heart of this process are polyurethane chemical grouts, a potent polymer material that springs to life upon contact with water. This interaction activates the grout’s hydro-active properties, prompting it to expand and solidify. The result? A robust, watertight barrier and seal for concrete structures that can also be used to fortify loose, granular soils in geotechnical applications. Given its versatility, it’s no wonder that these grouts are the go-to solution for a diverse set of building structure and soil related repair scenarios.

Acrylate Gel Chemical Grouts: The Ultra Low Viscosity Solution

Then there’s the acrylate gel chemical grout, known for its exceptionally low viscosity. This characteristic allows it to seep into the tiniest of cracks and loose soils with remarkable efficiency. Once settled, it transforms into a flexible and resilient gel, making it a prime choice for some challenging water sealing and soil stabilization scenarios demanding the super low viscosity properties of the injection grout.

Your Quick Guide to Chemical Grouting

Chemical grouting is an innovative process employed across various industrial sectors to rectify or prevent a wide array of structural, environmental, and geotechnical issues, often – but not always – correlated with water migration or water infiltration.

Navigating the world of chemical grouting can be daunting, given the plethora of grouting agents on the market. However, a few stand out for their unparalleled efficacy and adaptability:

Water-Activated, Hydro-Active Polyurethane Chemical Grouts: These are your best bet for creating strong barriers or solidifying soils.
High-Strength Two-Component Water-Blown Polyurethanes: Known for their strength, they’re a reliable choice for demanding applications.
Super Low Viscosity Acrylate Gels: Ideal for situations requiring a fine touch, these gels are both effective and adaptable.

In essence, each of these grouting agents brings a unique set of benefits to the table, making them indispensable tools in the realm of chemical grouting.

Types of Chemical Grouting Polymers

In broad terms, there are Two Categories of polyurethane grouts:

Flexible polyurethane grouts: These grouts are often used to fill voids and cracks in the soil or structure, creating an impermeable, flexible seal that can withstand slight movements without cracking.
Rigid polyurethane grouts:Typically used for soil stabilization and lifting concrete slabs, these grouts solidify into a strong, durable material capable of bearing significant loads.

Applications of Polyurethane Chemical Grout

With its diverse properties, polyurethane chemical grout finds applications in a wide range of scenarios. Here are some of its most common applications:

Sealing and Waterproofing

Polyurethane chemical grout serves as an excellent waterproofing agent. It creates an impermeable barrier that prevents water infiltration, making it an ideal solution for:

Tunnel and Dam Sealing: Polyurethane grout is often used to seal leaks in tunnels and dams.
Below Grade and Foundation Waterproofing: Polyurethane injection grout is used to effectively seal basements and foundations. The products are used for crack injection and curtain and stage grouting techniques to seal structures permanently.

Ground and Soil Stabilization

The grout is injected into the soil, where it expands, displacing loose soil and filling voids. It then solidifies, creating a stable, durable mass that strengthens the overall structure.

Seawall Repair: Polyurethane grouting is an effective solution for filling voids and stabilizing soil behind seawalls, reducing the risk of further washouts and damage to structures.
Permeation and Consolidation Grouting: It is also used to solidify loose, unconsolidated soils around structures and on slopes, thus preventing soil movement and erosion.

Concrete Lifting and Leveling

Rigid polyurethane grout can be used to lift and level concrete slabs, making it a popular choice for:

Roadway and Sidewalk Repair: The grout can be injected beneath the concrete to lift and realign sagging or uneven roadways and sidewalks.
Building Foundation Leveling: Polyurethane grouting is also employed to level building foundations that have settled or shifted over time.

Applications of Acrylate Gel Chemical Grout

Acrylate gel grouts are widely utilized due to their exceptional flexibility and permeation characteristics. Here are some typical applications:

Curtain Grouting: Acrylate gel grouts can be used to create an impermeable barrier or “curtain” around tunnels, basements, or other structures, preventing water ingress. Acrylate gel grouts are ideal for sealing fine cracks in concrete and other structures, thanks to their super low viscosity and flexibility.
Soil Stabilization and Permeation: Similar to polyurethane grouts, acrylate gels can be used to solidify loose soils, enhancing stability.

Applications of Epoxy Chemical Grout

Epoxy resins are renowned for their exceptional compressive and tensile strength properties, making them a go-to choice for structural repairs. For a more comprehensive understanding of the benefits of epoxy products and to explore a selection from the SealBoss Epoxy System Product Line, please follow this link.

Leading Chemical Grout Products

There are several exceptional polyurethane grouting and acrylate gel products available on the market today, each offering unique features to address specific needs. From the robust line of SealBoss Corp., find below a selection of some standout products:

SealBoss ® 1510

Leak-Seal Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam Grout

Our #1 Selling Polyurethane Injection Foam
Water Cut-Off Injection Grout

Semi-Flex Foam, Water-Activated chemical injection grout. Our most versatile product. Water activated hydrophobic polyurethane foam, expands up to 30-40 times.

SealBoss ® 1570

Leak-Seal Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam

Flexible Polyurethane Injection Foam

Flexible Foam, Water-Activated chemical grout.

SealBoss ® 1570 LV

Leak-Seal Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam

Super Low Viscosity Polyurethane Injection Foam,
Water-Activated chemical grout. Drinking Water

SealBoss ® FLEXGEL

Leak-Seal Injection Gel
Hydrophilic Injection Foam Gel
Hydrophilic Gel

Versatile Hydrophilic Polyurethane Foam-Gel

Water activated single component hydrophilic Polyurethane grout. Reacts to a foam with 1 to 3 parts of water added and to a very flexible gel with 4 to 15 parts of water added (by volume). Drinking Water Contact meets NSF/ANSI 61 Section 5 requirements.

SealBoss ® 1640

Void Filling
Lifting

Rigid, High Strength, SlabLifter & Void Fill Foam

Two component polyurethane foam with structural qualities to stabilize, lift and cut-off water. Fast reactive formula to gain strength within minutes.

– Commercial Bulk Packaging
– Cartridge System

SealBoss ® 2400

Leak Stop
Acrylate Gel
Acrylic Gel

SUPER LOW VISCOSITY
Poly Acrylate Chemcial Grout Gel

Hydrophilic poly-acrylate gel / acryclic gel for soil stabilization, curtain-injection, infusion bladder injection into structures and to seal degrading masonry grout.

SealBoss ® Epoxy System

STRUCTURAL REPAIR INJECTION
Epoxy Systems

Super low viscosity and low viscosity, 100% solids, hi-mod, 2-component, moisture-tolerant,high strength, multi purpose, epoxy injection resin adhesives.

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Water Ingress in Corrugated Tunnel Sealed

The University of Leicester enlisted the services of a U.K.-based specialty repair contractor to evaluate and rectify a steel corrugated tunnel/pipe approximately 1.8 meters in diameter.

The tunnel was exhibiting signs of persistent and significant water intrusion due to damage caused by corrosion, which led to the formation of cracks and perforations at the base of the duct.

The contractor devised and implemented a solution that could be applied from the confined interior space of the tunnel. The aim was to extend the lifespan of the structure by an estimated 25 years.

Given the substantial degree of water ingress from the elevated water table, a solution was needed that would not only stop the current water flow but also provide a robust barrier against future water infiltration and leakage.

The contractor identified a proven hydrophobic, hydro-active polyurethane water stop foam resin as the most suitable solution to tackle the fractures showing severe pressing water conditions.

Sealboss 1510 Water Stop Foam, NSF certified and activated by the 15x Accelerator, was the selected chemical grout to mitigate the severe and pressing water conditions.

The advantage of using this specific waterproofing injection grout in sealing the corrugated tunnel stems from its ability to seal not only wide, gushing water leaks but also the smallest of pores and capillaries in building elements that might otherwise allow water to seep to the surface.

The low viscosity of SealBoss 1510 chemical foam grout, coupled with the specially formulated SealBoss 15X Accelerator – which can be mixed at ratios ranging from 2% to over 20% by volume with the resin – enables a range of reaction profiles. These range from slow absorption into the concrete building components, sealing all capillaries and pores, to rapid water stop high-foamer expansion for sealing larger gaps and voids.

Carefully regulated addition of the accelerator allows for controlled expansion from nearly no expansion to forty times expansion. Due to its controlled expansion, the resin will either cure to form a tough semi-flexible seal or a compression seal gasket when expanding at pressure.

Following the injection as per specification, the corrugated tunnel repair now provides a watertight seal to the concrete, effectively preventing further deterioration of the building components due to water infiltration and seasonal frost.

Products used for Tunnel Water Stop and Leak Sealing Injection

Popular Leak Repair Injection Links

Tunnel Water Stop Foam

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Dam Repair – Active Leaks Sealed

Dam Repair
Active Leaks Sealed

Addressing Dam Leakage

Several factors can play a role in the development of cracks in concrete dams. The natural shrinking of concrete, geological stresses, and inadequate soil compaction during construction all play their part. The persistent positive water pressure means that even the smallest of these cracks and fissures can become avenues for water leaks. As water continues to seep through, the cracks inevitably widen over time, potentially leading to significant water loss and a progressive deterioration of the dam structure.

Earthen dams also face the risk of significant water loss through leakage. The potential culprits are often inadequate compaction of fill dirt, faulty seams, and leaks forming underneath the dam’s breastwork. Seepage can undermine the stability of earthen dams, leading to safety concerns and operational inefficiencies.

As with most structural defects, water leaks will continue to increase until corrective action is taken.

Dam Repair – Sealing Active Leaks

Innovative injection solutions like SealBoss Water Stop Foams and Polyurethane Injection Resins have been utilized for dam repair for over three decades. Successfully used to seal leaks in both concrete and earthen dams, these materials have proven invaluable in enhancing the resilience of dams, preventing water loss, and extending the lifespan of these significant structures.

Sealing Active Leaks – Efficient Dam Repair with Water Stop Foam Injection

SealBoss 1510 Dam Leak Sealing Injection Grout has proven its efficacy at the Blue Heron Paper Mill Dam in Oregon City, Oregon. The procedure involved the use of the SealBoss SLP1C pump and Mechanical Injection Packers to deliver the grout effectively.

Addressing the considerable water infiltration from the Willamette River, the Water Stop Foam was accelerated using the highest recommended dosage of SealBoss 15X Accelerator. This resulted in the fastest setting Water Stop/High Foamer Injection System, tailored to deal swiftly and effectively with the leakage.

The procedure was meticulously executed, with injections performed at strategically chosen entry points. This approach allowed the injection team to cut off the water flow at the primary leak sources, as well as at other sites where seepage was less severe.

Prior to the initiation of the injection process, a technical sales representative from SealBoss, alongside the West Coast SealBoss sales manager, visited the site. Their visit served to clarify injection techniques, address any queries, and ensure the operation proceeded with complete understanding and efficiency.

The operation was successful, with all dam leaks effectively sealed – a testament to the proficiency and coordinated efforts of everyone involved in the operation.

Should you have any questions regarding crack injection water stop procedures or any other injection-related processes, our seasoned team of SealBoss representatives stands ready to assist you. Don’t hesitate to get in touch.

We offer on-site consultations and comprehensive injection systems training, designed to provide a solid understanding of our repair methodologies.

Contact Your SealBoss ® Technician

Hot Shot Foam Injection Cartridges

Hot Shot
Foam Injection Cartridges

Water Stop | Leak-Seal

SealBoss 1500 Hot Shot is a water activated, hydro active, semi flexible foam injection resin, designed to shut down active water leaks quickly – Bigger is better, we give you 22 oz. per cartridge!
Concrete Crack & Pipe Penetration Leak Repair
Gushing Water Leak Stop
Semi-Rigid Properties Tolerate Movement

HOT SHOT 1500

Choose Your Hot Shot

Void Filler

SealBoss 1640 Hot Shot is a dry reactive structural foam system and void filler for use in dry and wet condition – Bigger is better, we give you 22 oz. per cartridge!
Wet and Dry Applications
Void Fill Applications
Under Slab Fill Applications

HOT SHOT 1640

Hot Shot Applicators

Cartridge Gun Applicators

Hand Operated
Air Operated
Battery Operated

Water Stop & Leak-Seal
Water Plug & Void Fill

Two Distinctly Different Foams
in Convenient Hot Shot Cartridges

Our Hot Shot Cartridge System is perfect for those jobs that don’t require a pump set up

Master the art of water stop and leak sealing, as well as water plug and void filling tasks with the convenient SealBoss Hot Shot Cartridges. The cartridges offer two unique foam solutions, perfect for small-scale repair projects that don’t necessitate the use of a complex pump setup.

Harness the power of two unique foam solutions, packed conveniently in our Hot Shot Cartridges, for all your small-scale repair jobs that don’t necessitate a cumbersome pump setup. All you need to kickstart your repair work is a hammer drill, drill bits, your chosen Hot Shot Cartridges, and a cartridge gun.

From walls, manholes, box culverts, floors, to storm and sewer pipes, SealBoss Hot Shot Cartridges serve a myriad of applications. The ease of use of these 22oz cartridges makes them a popular choice among professionals and DIY enthusiasts alike.

Applying the SealBoss Hot Shot Cartridges is as easy as following these steps:

Drill a hole through the substrate
Position the injection tip in the drilled hole and pump the SealBoss Hot Shot product
Alternatively, you can use the Low Pressure Zerk Injection Packer System Adapter

The Power of Simplicity – Foam Injection “Hot Shot” Cartridges

In the concrete repair and waterproofing industry, innovation plays a pivotal role in enhancing results and processes. Traditional approaches, while effective, often demand substantial time, expensive equipment and labor, which might not always be adequate and necessary for the job on hand.

Addressing these concerns, SealBoss introduces their professioanl grade foam injection Hot Shot Cartridges, reshaping the way we confront these challenges.

These Hot Shot cartridges serve as a simplified tool to apply the same high grade products, offering an efficient, user-friendly, and economic solution to a variety of repair tasks. From addressing leaks in a residential basement to mending cracks and filling voids in a commercial building’s foundation, Hot Shot cartridges simplify and accelerate the repair process.

Unmatched Efficiency

One of the prominent advantages of SealBoss’s “Hot Shot” cartridges is their remarkable time saving efficiency. Their innovative design and size, facilitates quick and effective foam injection tasks, reducing the time spent compared to traditional methods.

This efficiency is largely due to the cartridges being pre-filled with high-grade polyurethane resin that rapidly reacts and expands — no measuring and mixing needed — cutting down the material preparation time and overall process duration.

User-Centric Design

SealBoss’s Hot Shot cartridges stand out for their remarkable efficiency. Their innovative design and pre-filled high-grade polyurethane resin facilitate quick and effective foam injection tasks, reducing time spent compared to traditional methods.

The user-centric design of the Hot Shot cartridges ensures easy installation and operation, even for individuals with limited technical expertise. By eliminating the need for large, complex pumping systems, these cartridges streamline the injection process and make it accessible for even DIY enthusiasts to manage small-scale repair projects. SealBoss’s Hot Shot cartridges are also compatible with the SealBoss Steel Injection Packer Adapter for added convenience.

HOT SHOTS can be used with SealBoss’s Steel Injection Packer Adapter.

Conclusion

Whether you’re an experienced professional seeking to streamline your processes or a homeowner undertaking a repair project, SealBoss’s “Hot Shot” cartridges offer a solution that maximizes time, minimizes effort, and ensures reliable, lasting results.

For all your smaller jobs and projects, discover the innovation and efficiency offered by SealBoss’s Hot Shot cartridge system.

Opt for SealBoss Cartridges for all your smaller tasks and projects.

SealBoss Cartridge System

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Hot Shots

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Water Tank Injection Training

Water Tank Injection

Water Tank Leak Seal Injection Training

Large Water Tank Injection Leak Repair with SealBoss 1510 Water Stop Foam

SealBoss offers full system solutions for water stop & leak repair with high pressure polyurethane injection

Introduction

Drinking water tanks are specifically constructed to maintain a sealed, water-tight environment; however, cracks and leaks in expansive concrete water storage structures, frequently detected during construction, can lead to numerous undesired outcomes. These may encompass significant water loss or water ingress contaminated by pollutants and germs, potential health risks, and structural damage to the tank.

Cracks and leaks in large concrete water tanks can lead to significant water loss or water ingress (pollution/germs), potential health risks, and structural damages. Repairing these issues in a timely and efficient manner is crucial for maintaining water quality and preventing further damage. In this article, we will discuss the process of repairing large concrete water tank cracks and leaks using the SealBoss Water Stop and Leak Seal Polyurethane Injection Foam, SealBoss Injection Packers, and SealBoss Professional Injection Pumps.

Ensuring Product Safety – Using NSF Certified Waterproofing Polyurethane Foam System

Western U.S. Regional Manager Chris Coderre instructs a construction team on urethane waterstop injection methods in Seattle, Washington

The NSF Drinking Water Contact Certified SealBoss 1510 Water Stop Foam and the SealBoss P2002 single component injection pump system with SealBoss 13-115S (½”) high pressure packers were used live in the training session at a large concrete water tank with active leaks.

The National Sanitation Foundation (NSF) enforces stringent standards to reduce the negative impact of products interacting with potable water.

Facilities like water treatment plants, water containment structures, and other related structures should be maintained and repaired using approved products that are deemed safe for contact with drinking water and won’t introduce contaminants that could cause health issues or regulatory concerns.The NSF is an independent organization that establishes public health standards and certification programs to safeguard food, water, and the environment. The American National Standards Institute (ANSI), a private non-profit entity, oversees the development of consensus standards for products, services, processes, and systems in the United States.

Adhering to NSF/ANSI/CAN 61 certification ensures that products comply with regulatory requirements for the U.S., Canada, and other countries adopting these standards.Products in contact with drinking water undergo NSF/ANSI/CAN 61 testing to confirm that contaminant levels remain below the maximum acceptable limits for safety. Rigorous testing is required for products to achieve NSF approval.

Inspecting the Water Tank

The first step in the water tank injection repair process is a thorough inspection of the tank to identify all cracks and leaks. This inspection should be performed by a trained professional, as they will have the experience and knowledge to detect even the most subtle signs of damage. Once the inspection is complete, the repair team can develop a plan for addressing the identified issues.

Preparing the Tank for Repair

Before beginning the water tank injection repair process, it is necessary to prepare the tank. First, drain the tank completely to ensure a safe and dry work environment. Then, clean the surface around the cracks, removing any debris. This step is crucial for the success of the repair, as a clean surface allows for optimal detection of crack development and subsequent injection packer placement.

Installing SealBoss Injection Packers

To inject the SealBoss Polyurethane Injection Foam into the cracks and leaks, Injection Packers must be installed. These packers serve as the entry points for the foam and ensure that it is directed precisely into the damaged areas. To install the packers, drill holes at regular intervals along the length of the crack, and then insert the packers into the holes. The number and spacing of the packers will depend on the size and severity of the cracks, as well as the specific requirements of the water tank injection repair project.

Preparing the SealBoss Polyurethane Injection Foam

The SealBoss Polyurethane Injection Foam is a single component accelerator adjusted system that requires proper mixing before use. Follow the manufacturer’s instructions for accelerator percentages, ensuring that the correct proportions are used to achieve the desired expansion rate and strength. Once the product is thoroughly mixed, the foam is ready for injection.

Injecting the SealBoss Polyurethane Water Stop Foam

With the SealBoss Professional Injection Pump, begin injecting the leak sealing foam into the installed packers. The foam will expand upon contact with moisture, filling the cracks and stopping the leaks. As the foam fills the cracks, it will create a strong and flexible seal, preventing further water infiltration.

Monitor the foam’s progress and continue injecting until the foam fills the entire crack and reaches the next injection port. Repeat this process for all injection ports, ensuring a complete and thorough repair. Re-inject packers two or three times until product refusal.

Post-Injection Cleanup

Once the SealBoss Polyurethane Injection Foam has fully cured, it is time to clean up. Remove the injection packers and any excess foam from the surface of the tank. Patch any remaining holes with a suitable patching material, to ensure a smooth and watertight finish.

Refilling and Testing the Water Tank

With the water tank injection repair complete, it is time to refill the tank and test for any remaining leaks. This step is crucial for confirming that the repair was successful and that the tank is now fully functional. Fill the tank gradually, monitoring the repaired areas for any signs of moisture or water seepage. If any leaks are detected, it may be necessary to repeat the repair process or consult a professional to address any underlying issues.

Ongoing Maintenance and Monitoring

After successfully completing the water tank injection repair, it is essential to implement a regular maintenance and monitoring schedule to prevent future issues. Inspect the tank periodically for signs of new cracks or leaks and address them promptly to avoid more extensive and costly repairs. Proper maintenance and monitoring will ensure the longevity of the water tank and the quality of the water it stores.

Conclusion

Using SealBoss Water Stop and Leak Seal Polyurethane Injection Foam, SealBoss Injection Packers, and SealBoss Professional Injection Pumps, large concrete water tank crack and leak repairs can be completed efficiently and effectively. This comprehensive water tank injection repair process provides a durable and flexible solution for sealing cracks and leaks, ensuring the structural integrity of the tank and the quality of the water it stores. By employing professional techniques, the contractor can successfully restore the water tank to optimal condition and prevent more extensive damage.

If you have any questions on crack injection waterstop procedures or any injection related applications, please contact our team of qualified SealBoss representatives to schedule an on site consultation & full injection systems training.

Contact Your SealBoss ® Technician

Historical Building Repair – PUR Injection

Historical
Building
Repair

PUR
Foam
Injection

Historical Building Repair – PUR Injection

This well over a century old historical apartment building had persistent water intrusion through the masonry rock foundation into the below grade parking garage.

A SealBoss Technician was asked to come out and consult with a local installer in St. Louis, Missouri, to find solutions for the water ingress problem. The majority of the exterior walls where the sill plate sits at or just below grade had shows signs equivalent to years of water intrusion.

The century old stone wall, and the grout holding the natural rocks in place, had become compromised. Water would seep from the soil through the wall causing further decay, unsightly stains and in some areas growth of unsightly algae.

Previous non-permanent and haphazard repairs included cleaning the wall and opening up the face with a grinder then applying a cementitious grout over the whole face of the wall. This attempt of a repair would fail within a year of application.

The approach to a permanent historical building repair was to inject any visible cracks first. One of the areas with heavy water intrusion was a doorway that lead from the parking garage to the stairs leading to the domicile. Here there was a water bearing crack with an active leak overhead as well as a cold joint between the floor and stub wall.

The overhead crack was addressed using 5/8” Plastic Injection Ports as the grout lines would crack and flake when a mechanical packer was tried initially. A zerk tip was added to the injection port and the crack was primed by injecting water through the packer till positive refusal was seen from the crack.

SealBoss 1510 Chemical Injection Grout was then injected under pressure to displace any water in the crack and began to cure and seal the area.

To address the cold joint on the floor in the stairwell, ½” packers were installed on the floor roughly one foot apart and six inches from the wall. It was confirmed that behind the stub wall in the stairwell was substrate and upon install of the Packers, it was found that the floor had only been about a two inch pour.

With the thin floor slab, it was advised to inject through the slab creating a “blanket” of 1510 below the slab since the slab thickness would not allow for the standard 1, 2, 3, 45 Degree Injection Packer Placement Method.

A weep hole was also drilled in the slab to allow for a controlled point where the water and off gas could be directed. Positive refusal of the foam was visible from the cold joint, and once the joint had been sealed, packers were removed and a hydraulic cement patch was installed.

Once all cracks have been addressed, wet areas can be addressed by curtain / bladder injection, where chemical grout is injected behind the wall to create a waterproofing barrier between the soil and the wall on the positive side of the structure.

More on curtain injection grouting method – details and pictures.

Historical Building Repair – Chemical Grouting Products Used

Call Your SealBoss Historical Building Repair and Injection Grouting Specialist

If you have any questions on chemical injection grouting or any related applications, please contact our team of qualified SealBoss grouting repair representatives to schedule an on site consultation & full systems training.

Call us at 714-662-4445.

Historical Building Repair Systems

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SB Repair

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Manhole Injection Training

Manhole Leak Repair On-Site Training

Rehabilitation and Leak Mitigation:
Training with Polyurethane Injection Grout System – SEALBOSS 1510 WATERSTOP FOAM

The polyurethane injection technique provides an effective and durable solution for sealing leaks in manholes. This method employs a chemical grout that, when injected into cracks or joints, expands upon contact with water, forming a flexible yet sturdy seal, ensuring a long-lasting and water-resistant barrier, and significantly enhancing the integrity and lifespan of manhole structures.

A technical representative from SealBoss was engaged in providing an extensive consultation and training session at a project site, with a primary focus on addressing and repairing active leaks in masonry block manholes.

These manholes, situated adjacent to a swiftly flowing creek, were experiencing significant failures and active leakage due to compromised cementitious grout between the masonry blocks. A prior remedial attempt by the contractor, involving a cartridge product, failed to address the leakage problem.

As an effective remedy, SealBoss recommended the utilization of a high-pressure polyurethane water stop foam injection approach. This solution involved the SealBoss P2002 single-component injection pump and the SealBoss 1510 Water Stop Foam, administered through an array of SealBoss AL 13-100 (½”) high-pressure packers. Additionally, SealBoss Seal Oakum was provided to supplement the treatment.

Our SealBoss technical representative was on-site for a two-day period, imparting crucial manhole injection training and support to the contractor regarding the use of the injection system. The primary objective was to ensure the contractor’s crew gained both confidence and proficiency in the system’s application.

Training was provided on the operation of the pumps, setting of the packers, and the overall injection procedure, including post-application cleanup.

For areas with larger cracks or excessively active leaks with high-volume water flow, the contractor crew received instructions on the application of catalyzed resin-soaked SealBoss Seal Oakum. This method was employed to rapidly establish a barrier, curtailing active water flow and facilitating the retention of the injected foam resin within the crack during its expansion phase.

The Oakum Seal Method utilizes Seal Oakum, a dry, oil-free fiber that absorbs SealBoss chemical grouts. When placed in the structure, the water-reactive resin expands, forming a dense, flexible seal that prevents leaks during injection and curing. It also serves as a physical barrier against water migration in larger cracks and joints.

Through the duration of the training, all leaks were successfully sealed, effectively terminating water ingress into the manhole.

For inquiries regarding manhole injection training and repair applications or other injection-related applications, we invite you to contact our skilled team of SealBoss representatives. We offer scheduling for on-site consultations and comprehensive injection systems training, assuring optimal results for your projects.

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How to Seal Leaks | Repair Cracks in Shotcrete

How to Seal Leaks and Repair Cracks in Shotcrete:

Shotcrete is a versatile and durable material widely used in construction for creating complex structures, including decorative elements in zoos and theme parks.

However, like any other material, it is prone to developing cracks and leaks over time. Addressing these issues promptly is crucial to maintain the integrity and appearance of the structures. This article outlines a practical example of how the SealBoss Water Stop System was effectively used to repair a decorative shotcrete structure at the Omaha Zoo.

The Challenge: Leaks and Cracks in Decorative Shotcrete

The Omaha Zoo faced a significant challenge when a decorative shotcrete structure, an integral part of the zoo’s aesthetic appeal, began showing signs of deterioration.

Cracks and leaks had developed, primarily due to an irrigation system installed above the structure. Water seepage through these fissures threatened the durability and appearance of the faux rock face, necessitating an urgent and effective repair solution.

The Solution: SealBoss 1510 Foam and P2002 Polyurethane Pump

To address this issue, a technical representative from SealBoss was called upon. The solution proposed involved the use of the SealBoss Water Stop System, specifically the 1510 Water Stop / Leak Seal Foam and the compact P2002 Injection Pump, along with SealBoss Evolution AL Packers (1/2″, 5/8 BH/Zerk).

The objective was clear: to seal the leaks and repair the cracks effectively without compromising the structure’s aesthetic value. The SealBoss system was chosen for its proven efficiency in such scenarios.

The Process: Hydro Active Foam Injection Technique

The repair process began with a thorough assessment of the structure to identify all visible voids and cracks. The SealBoss team then employed the hydro active foam injection technique, using the P2002 drill injection machine along with 1/2 AL & 5/8 injection packers.

SealBoss 1510 was injected into the cracks until visible penetration was observed on the face of these cracks. This process required multiple injections at various points to ensure that the foam traveled deep into the cracks, forming a dense, closed-cell compression seal upon expansion. One of the remarkable observations during the process was the expanding foam pushing out from the cracks, indicating its excellent travel and coverage within the network of fissures.

The Outcome: A Leak-Free, Restored Structure

Following the injection process, the structure underwent a rigorous inspection to ensure that all leaks were sealed. The SealBoss system proved its efficacy, as the structure passed the inspection with no signs of leakage. The aesthetic integrity of the structure was maintained, with minimal visible impact from the repair process.

Training and Support

SealBoss offers in-person and video training for those interested in learning more about their products and techniques. This training is invaluable for professionals looking to enhance their skills in leak sealing and crack repair in shotcrete structures. Additionally, SealBoss provides access to regional technical representatives who can offer insights into the full range of system solutions and offerings.

Conclusion

The successful repair of the decorative shotcrete structure at the Omaha Zoo is a testament to the effectiveness of the SealBoss Water Stop System. This case study highlights the importance of choosing the right materials and techniques for repairing shotcrete structures. With the right approach, it is possible to extend the life of these structures while maintaining their aesthetic and structural integrity.

For those facing similar challenges, consulting with a SealBoss technical representative can provide tailored solutions to effectively address leaks and cracks in shotcrete.

SealBoss ® P2002 Drill Operated Injection Pump Advantages

Polyurethane Grout Injection Pump
Polyurethane Foam Injection Pump
Easy To Use
Easy To Cean
Easy To Maintain
Modular, Compact &
Sturdy Design
Single Component
Electric Drill Operated
Heavy Duty For Daily Use
Pressure Gauge, Hose Set, Hopper Included
Recommended For Beginners & Injection Pros
> 5000 PSI Injection Pressure Possible

SealBoss Injection Systems

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Seal Leaks with Oakum

What is Oakum Soakum?

For Best Results, Soak the Oakum.
– Oakum Soakum –

The Benefits of using the Oakum Seal Method

Seal Oakum is an untreated, strong, dry and oil free jute based fiber capable of absorbing copious amounts of SealBoss chemical grouts. Resin impregnated Seal Oakum reacts with water and expands to form a dense and flexible seal. It offers major benefits for many leak sealing jobs by keeping injection resin in place and prevent it from escaping and leaking during the injection process and prior to cure. With soaked oakum you can create a physical barrier to prevent active water infiltration in larger openings, irregular cracks and joints.

Oakum is mainly used as a carrier medium for hydro active foam resins for use in wide openings to seal leaks. It is used to slow down massive water flow to permit the injection foam to cure. For this application Seal Oakum is soaked in SealBoss foam grout leak-seal resin and the saturated product packed into actively leaking cracks and joints as a compression seal. ‘Oakum Soakum’ is an industry known term for the technique. Prior to use inspect area for loose concrete and remove any contamination to prepare for insertion of the fiber into the desired location.

Can I use un-soaked, dry Seal Oakum?

Seal Oakum also works well dry when driven into cracks as a temporary seal to allow injected resin time to cure without washing out.

Seal Oakum is cut to length and sold in ready-to-use sets

How to and Where to use Seal Oakum

For Use With SealBoss Hydro Active PU Water Stop Foam Injection Grouts – Oakum Soakum Technique
Create Joint Gaskets or Use in Combination with Gaskets in Sewer & Storm Drain Lines, Ducts
Wastewater Treatment Plants
Reservoirs & Water Tanks
Service Manholes
Tunnels & Underground Cable Trenches
Pipe Penetrations,
SealBoss Seal Pipe Kit

How to Seal Gushing Leaks and Wide Cracks with Seal Oakum

Use gloves and protective gear during the oakum soakum application process
It is recommended to drill packer holes and set packers prior to oakum use.
One, or several relief holes may divert water pressure during the oakum placement
Clean the surfaces to which the oakum will be applied
Place oakum in a container and saturate with SealBoss Water Stop Foam
Remove excess resin from the oakum
For minor leaks or dry cracks or joints dip the resin soaked oakum into a pail of water to begin the reaction process and expansion
Pack oakum into the joint or crack with a large screwdriver or any tool suitable for the task
In cases of severe water pressure you may want to use a wooden board or other suitable product to mechanically support the applied oakum from being pushed out
Injection should be performed through preinstalled packers. If advised, a SealBoss Injection Needle may be used to inject grout directly through the oakum.

Sealing Pipe Penetrations with Seal Oakum

To seal pipe penetrations, resin saturated oakum can be sprayed with water or dropped into a pail of water to start the activation process. The reactive oakum is now packed into joints and around leaky pipe penetrations where it creates a watertight seal between the outside of the pipe and the wall of the structure.

Used dry, oakum fibers can be packed into wider cracks and joints to retain injected SealBoss polyurethane resin.

Installation Guidelines

Submerge SealBoss 1500 Seal Oakum into activated foam resin. When removing from container, wipe off excess material. If necessary, wet joints or voids with water to prime surface for saturated SealBoss® 1500 Seal Oakum.

To seal minor leaks, dip saturated SealBoss Seal Oakum into water to start reaction.

Place saturated SealBoss Seal Oakum in the joint or void. You may also spray saturated oakum surface with water to speed up the cure process. Cut excess product from substrate surface after cure.

SealBoss Seal Oakum

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Seal Oakum

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Beam Pocket Leaks Sealed

Polyurethane Foam Injection Leak Stop

What is a Beam Pocket ?

A beam pocket is a recessed space designed to hold the end of an intersecting beam in a concrete wall, a masonry wall, or a column.

Beam pockets in exterior structures are often subject to water leakage.

Addressing the Challenge: Comprehensive Water Intrusion Remediation

The Issue at Hand

A notable challenge emerged when a client reported significant water intrusion through beam pockets in an exterior structural concrete wall. This issue led to consequential water leak-related damages within a concessions room and storage area, necessitating immediate action.

To address this critical situation, a specialized waterproofing contractor was enlisted to not only remediate all existing leaks but also to provide expert advice on strategies to thwart future water intrusion events.

Strategic Resolution

The contractor initiated a meticulous examination of the afflicted structure, pinpointing the origin of the leakage on the Northwest side. This area was notably vulnerable due to the accumulation and subsequent stagnation of snow melt, exacerbated by winter storms. Compounding the problem were the compromised gutters and evident signs of water overflow at exterior joints, which facilitated the ingress of water into the structure through various openings, including joints, cracks, and unsealed beam pockets.

To counteract these issues, a strategic approach was employed using SealBoss 1510 NSF/ANSI 61 Water Stop Foam. This innovative solution was meticulously injected into the problematic beam pockets and along the cold joints between the concrete wall and the adjacent corrugated metal, targeting the very sites where leaks had been identified. The application followed the SealBoss 1, 2, 3, 45 Degree Injection Method, employing injection packers positioned approximately 4 inches from the joint. This method involved drilling ½-inch holes at a 45-degree angle, directly targeting the compromised joints for optimal resin injection.

The SealBoss 1510 resin was administered until a condition known as ‘positive refusal’ was achieved, indicating that the hydro-active resin had fully occupied and sealed the intended areas, both in the beam pockets and along the junctions between corrugated metal and concrete.

Proactive Measures for Future Prevention

In addition to addressing the immediate leaks, the client received crucial advice to mitigate future risks. Recommendations included the installation of additional downspouts and the repair of damaged gutters, crucial steps to effectively manage water flow and prevent its accumulation near the building’s foundation. Furthermore, the client was advised to ensure the prompt removal of snow from the building’s vicinity to avoid the formation of stagnant snow melt, a key contributor to the initial problem.

Through these comprehensive measures, the structural integrity and dryness of the client’s property were significantly enhanced, providing a robust solution to a complex problem and laying the groundwork for a drier, more secure future.

Products Used:

Injection Resin: SealBoss 1510 with SealBoss 15x Accelerator
Injection Packers: 1/2” 13-100 Evolution Aluminum Packers
High Pressure Pump: P2002 Single Component Injection Pump
Cleaning Materials: Xylene, R70 Pump Flush, rags, bucket
Additional Tools: 18” x 1/2″ drill bit — 3/8” Crescent Wrench — Dead Blow Hammer
Hammer Drill — Access 110v Power — Vacuum

Case Study, pdf — Click Here

SealBoss ® 1510 NSF Beam Pocket Water Stop Foam

Beam Pocket Repair, Crack & Joint Leak Sealer
Concrete Walls, Masonry Walls, Columns

SealBoss ® 1510 NSF Beam Pocket Seal Foam Advantages

Low Viscosity
Fast Cure Time
Advanced and Proven SealBoss ® Product-Pump-Packer System

In Person and Video training is available upon request, contact SealBoss today to speak to your regional technical representative on our SealBoss full system solutions and offerings.

Bestselling SealBoss ® Brand P2002 Injection Pump Advantages

Light Weight Injection Pump
High Quality Components for Durability
Proven Design – Thousands of Units Sold
Easy To Clean
Easy To Maintain
Heavy Duty For Daily Use
Pressure Gauge, Hose Set, Hopper Included
Recommended For Beginners & Injection Pros
> 5000 PSI Injection Pressure Possible

In Person and Video training is available upon request, contact SealBoss today to speak to your regional technical representative on our SealBoss full system solutions and offerings.

‘When I am asked to provide jobsite assistance, support and training, I try to create a positive learning environment where confidence and a level of comfort can be achieved in a short period of time allowing for successful repairs to be continued after the training.

From training new companies to new employees, SealBoss has continued to provide support to our users for 36 years and I look forward to continuing this tradition in the years to come.

With a knowledgeable technical support team, we are here to help with any questions you may have’