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Cold Joint Injection

Leaking Cold Joints Sealed

Cold Joints in Concrete Structures and the Polyurethane Polymer Solution

Introduction

Concrete is a versatile and durable construction material, but like all materials, it has its weaknesses. One such weaknesses is the formation of cold joints. Understanding what cold joints are and how to address them is crucial for anyone involved in the construction or repair of concrete structures.

What are Cold Joints?

A cold joint forms when newly mixed concrete is laid adjacent to or over concrete that’s already started to harden. This situation can manifest due to several factors, including disruptions during pouring or delays in the mixing and transportation of the concrete. This leads to the formation of a distinct boundary, a zone lacking cohesion, where the previously set and fresh concrete converge. Such a boundary weakens the overall structural strength of the concrete, rendering it susceptible to water infiltration and potential leakage. Over time, the presence of cold joints can reduce the overall lifespan of the concrete structure.

The Polyurethane Polymer Foam Injection Solution – Injecting cold joints with polyurethane polymers has emerged as an effective solution to address the issues of water migration and leakage.

Injection Process

Using specialized equipment, the polyurethane polymer is injected into the cold joint. The polymer fills the voids and gaps, creating a permanent seal. The polymer acts as a barrier, preventing water from seeping through the cold joint. The injected polymer reinforces the cold joint, reducing the risk of corrosion, cracks or breaks. With the cold joint addressed, the overall lifespan of the concrete structure can be significantly extended.

Addressing Cold Joints with the SealBoss Injection System – Comprehensive Solution to Moisture and Active Leaks

Cold Joints are common locations where moisture and active leaks are frequently observed. Whether stemming from a flawed waterproofing system or its total absence, we offer a comprehensive solution to address the leak and stop any water intrusion.

Our SealBoss Regional Sales Manager was on-site in Kansas City to train and assist with the injection of below grade cold joints that had begun to actively leak due to failures in the pre-existing waterproofing system.

Both vertical and horizontal cold joints were injected with various levels of leak activity. The contractor drilled the injection holes and installed 1/2″ SealBoss mechanical packers for a tight fit. Based on the conditions the 45 angle drill degree method was used as well a direct into the joint placement was chosen.

The applicator then injected SealBoss 1510 using the P2002 high-pressure single component injection pump. Due to the relatively low temperatures of the substrate the product was catalyzed with approximately 15% of SealBoss 15X highfoamer accelerator. All active leaks were successfully stopped and the Cold Joints sealed.

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SealBoss delivers on-site training and specialized technical assistance for tackling cold joint leaks, as well as other concrete structure issues.

Considering a Solution for Sealing Cold Joints During Construction?

Look no further! We not only offer systems specifically designed for sealing cold joints but also provide expert advice to prevent moisture issues right from the construction stage.

Materials and Tools Used

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Please don’t hesitate to call us at 714-662-4445 with any questions, or request to be contacted here, we look forward to helping you find a solution. On-site support from knowledgeable and experienced technical reps is available upon request.

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Water Stop Injection Pro Kits

Engineer Focused Leak Sealing Injection Training

Elevating Structural Integrity with Water Stop Injection Pro Kits: A Paramount Educational Initiative

The Paramount Group recently hosted an enriching educational event tailored for UG2 Engineers across its six San Francisco properties, featuring a dynamic “lunch and learn” session coupled with an engaging hands-on demonstration led by SealBoss Corp. Concrete Solutions. This event marks a significant stride in addressing the escalating challenge of groundwater intrusion, a problem intensified by the recent unprecedented downpours across Northern California. The widespread impact has led to a notable shortage of specialized contractors, escalating the urgency for effective solutions.

As a consequence of the recent record-shattering downpours, groundwater intrusion has grown into a pervasive issue affecting a multitude of properties across Northern California. This concurrent impact on the region has given rise to a scarcity of specialized contractors equipped to handle such challenges, further complicating the situation for affected parties.

Training Spotlight: Empowering Contractors and Engineers with Water Stop Injection Pro Kits

In response to this urgent need, Paramount Group has taken a strategic step by empowering their on-site engineering teams with advanced Water Stop Crack Injection Pro Kits.

The initiative includes comprehensive training sessions aimed at enhancing the teams’ proficiency, ensuring the secure and adept use of these state-of-the-art tools. This forward-thinking approach not only enhances the engineers’ capabilities but also ensures rapid, in-house resolution of groundwater intrusion challenges, upholding the highest standards of property maintenance.

By supplying Water Stop Crack Injection Pro Kits and organizing comprehensive training sessions, the company guarantees the secure and efficient application of waterproofing and leak sealing injection grout systems.

This initiative is projected to yield substantial cost savings, potentially amounting to thousands of dollars annually per property. It underscores Paramount Group’s dedication to innovative problem-solving and the continuous professional growth of their engineering personnel.

We take great pride in offering comprehensive educational programs targeted at engineers, distributors, and contractors worldwide, focusing on the practical application of our products and technology. These sessions are designed to foster a deeper understanding of effective leak sealing techniques and the strategic use of Water Stop Injection Pro Kits.

For more details about our comprehensive classroom services, hands-on training, and informative “lunch and learn” sessions, please reach out to our expert technical sales team at 714-662-4445. Engage with us to elevate your engineering solutions and safeguard your properties against the challenges of water intrusion.

It brings us great pride to provide all-inclusive educational programs for engineers, distributors, and contractors around the globe, focusing on the effective utilization of our products and equipment.

For additional information regarding our classroom services, on-the-job training, and lunch and learn sessions, please don’t hesitate to reach out to our knowledgeable technical sales staff at 714-662-4445.

Water Stop Injection Pro Kits

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Dam Spillway Leak Sealed

SealBoss 1510 Polyurethane Foam

SealBoss 1510 Leak Sealing Application

What is the Purpose of a Spillway in Dams?

A spillway serves a critical function in dam systems. Either incorporated into the dam’s structure or built adjacent to it, a spillway facilitates the controlled and secure discharge of surplus water downstream.

SB 1510 Polyurethane Foam in Dam and Spillway Leak Sealing: An Overview

Polyurethane foam, known for its superior adhesive properties and low viscosity, plays a pivotal role in sealing leaks in dams and spillways.

Its unique characteristics, superior adhesive properties and low viscosity, make polyurethane foam an optimal choice for addressing expansive cracks, joints, and gaps in concrete structures. Hydro-active foam penetrates deeply into these openings and crevices, efficiently arresting active and high-velocity water flow, while also filling the cavities to form a waterproof seal that impedes future water seepage.

The remediation process initiates by drilling holes around the leak-prone area within the concrete perimeter. Following this, specialized injection equipment introduces polyurethane foam through the installed injection packers in the drilled holes. Upon injection, the foam expands and fills the concrete voids, establishing a sturdy bond with the surrounding substrate. After curing, the foam evolves into a solid and durable repair, effectively sealing the water leak in the spillway. Polyurethane water stop foam injection offers an effective and economical solution for many dam spillway leak repairs.

Sealing Dam Spillway Leaks with 1510 Water Stop Foam: A Case Study

How to Seal a Dam Spillway Leaks with Hydro-Active Polymer Injection

SealBoss was enlisted to tackle the problem of leaking Cold Joints, a situation that had resisted repair through four prior methods. The caulking previously deployed to seal the joint had been compromised, leading to water erosion and diminished adhesion between the caulking and the concrete. As a result, water was infiltrating through the “V” notched joint at an increasingly concerning rate.

Preparation and Injection Procedure

The repair endeavors focused on sections with active water leaks – characterized by high velocity and volume – visible efflorescence, and loose caulking. Caulking removal was required to expose the cold joint.

In preparation for placing the mechanical packers, the contractor drilled holes. When water began flowing from these holes, it was clear the drill bit had successfully intercepted the joint.

At times, it may be beneficial to keep a drill hole unsealed initially, delaying the installation of the injection packer. This approach can serve as a pressure relief point, helping to alleviate hydrostatic pressure and regulate water flow.

In preparation for the injection procedure and to curb water flow, the Oakum Soakum Technique was employed to address the gushing leaks first. SealBoss 1500 Seal Oakum, soaked in SealBoss 1510 Water Stop Foam catalyzed with a significant amount of SealBoss 15x Accelerator for quick setting and curing, was inserted into the actively leaking crevices and held in place until cured.

After completing the oakum patching process, the next phase involved installing the injection packers. The 13-100 AL packers were set in place following the 1, 2, 3, 45 Degree Injection Guidelines, with a 14″ staggered vertical spacing and about 7″ on either side of the joint to avoid interfering with the rebar.

The injection procedure commenced from the lowest packer, using SealBoss P2002 pumping equipment to inject the catalyzed SealBoss 1510 Water Stop Foam. We suggest occasional injection pauses to let the resin expand and to reduce product wastage.

Success – Dam Spillway Leak Sealed

Through these measures, all the joints were successfully sealed, and active leaks were effectively addressed.

Conclusion

In summary, the usage of polyurethane foam, particularly SealBoss 1510 Water Stop Foam, has proven to be an effective and economical solution for dam and spillway leak sealing.

The method’s success lies in the foam’s ability to penetrate deep into the crevices and gaps, providing a robust, waterproof seal.

The above case study underscores how a strategic, methodical approach can result in successful sealing of active leaks, reaffirming the significance of this solution in the field of dam and spillway maintenance and repair. As we look forward, we can anticipate that such techniques will continue to evolve, further enhancing the efficiency and effectiveness of leak repair in dam spillways.

Products Used

Dam Spillway Leak Seal Systems

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Concrete Leak Sealing

Guide to Concrete Leak Sealing:

Polyurethane Grout vs. Hydraulic Cement & Crystalline Waterproofing

In the realm of concrete leak sealing repair and reinforcement, options are abundant but not all solutions are created equal. Specifically, when sealing leaks in concrete structures, it is crucial to understand the comparative advantages and applications of hydraulic cement, crystalline waterproofing, and polyurethane grout. In this guide, we shall explore these three options, shedding light on their benefits and potential limitations.

A Product Comparison

Hydraulic Cement, Crystalline Waterproofing, and Polyurethane Grout

Hydraulic cement, crystalline waterproofing, and polyurethane grout are distinct material groups, each with its own merits and uses. The choice between them should be a strategic decision guided by the requirements of your project.

Understanding Hydraulic and Crystalline Systems

Hydraulic cement and crystalline waterproofing solutions are often utilized due to their cost-effective nature and straightforward application process. They find common use in below-grade concrete structures like parking garages, basement walls, and manholes, where their primary role is to coat surfaces or seal leaking cracks, preventing water infiltration.

Despite their utility in surface-level repairs for static structures, these products share a key limitation – their inability to form a flexible seal that penetrates the depth of the structure. This makes them somewhat akin to ‘band-aid’ fixes – temporary, surface-level solutions.

Their limitations become particularly evident in the face of structural movement, including thermal expansion and contraction of substrates. Such movements often lead to the re-emergence of leaks over time, creating a cycle of recurring repairs. These patchwork solutions, although effective in the short term, can prove to be a less sustainable choice in the long run.

Polyurethane Grout: A Dynamic Solution

For structures prone to any movement over time, including expansion and contraction of materials, polyurethane grout outshines its service applied counterparts. The long-term benefits of polyurethane grout injection often justify the investment.

Let’s consider an illustrative example: a substantial concrete structure, such as below grade wall or potable water tank, several feet thick and reinforced with rebar, that has developed a crack.

In cases where the leak is not too severe – keeping in mind that polyurethane grout injection is the preferred, and often only method for handling aggressive or gushing leaks – a surface patch solution like a hydraulic cement or crystalline system could be employed to halt a minor leak initially.

While this approach may provide temporary relief, it falls short in addressing the fundamental problem – the unending cycle of water infiltration, migration, and trapped moisture within the structural fissures and crevices. The unresolved water intrusion not only propagates moisture migration throughout the structure, but it may also expose the reinforcing bars (rebar) to corrosive effects. This corrosion can lead to expansion, creating additional stress on the concrete structure, potentially worsening the initial problem.

Here is where polyurethane grout shines – Full depth penetration concrete leak sealing

With a full-depth injection of polyurethane grout, you can not only disperse any water inside the structure and seal the entire volume of the crack, but also safeguard the rebar in the process, eliminating the threat of future corrosion. The penetrating and water dispersing ability, flexibility, and durability of polyurethane grout make it an ideal solution for preventing future leaks. Unlike surface patch solutions, it offers a comprehensive, long-term resolution to the issue.

The Role of Structural Movement in Permanent Leak Sealing

The effectiveness of hydraulic cement and crystalline waterproofing significantly diminishes when it comes to dealing with structural movement. This is particularly evident in dynamic below grade concrete structures like parking garages, which experience thermal cycles, vibration due to heavy traffic, and may additionally be situated on expansive soil. Moreover, its high elasticity makes it perfect for application in areas prone to constant vibrations or expansions, like bridges, highways, and large commercial buildings. The recurring nature of leaks due to movements necessitates a structure penetrating and permanent solution: A professional polyurethane grout injection concrete leak sealing system.

The Final Word:

Making an Informed Choice

Selecting the right materials for your concrete leak sealing repair needs is crucial. The long-term benefits of polyurethane grout often make it a superior choice, especially for structures prone to any movement. Unlike its counterparts, it can withstand significant structural movement over time without losing its sealing capabilities.

As a trusted provider, we’re dedicated to guiding your decisions with reliable, professional, and detailed information tailored to your needs. Remember, making the best choice now will save you time and resources in the future.

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Polyurethane Injection Grout Line

SealBoss ® 1510

Concrete Leak Sealing

Leak Sealing 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

Concrete Leak Sealing

Leak Sealing Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam

Flexible Polyurethane Injection Foam
Flexible Foam, Water-Activated chemical grout.

SealBoss ® 1570 LV

Concrete Leak Sealing

Leak Sealing Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam

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

SealBoss ® FLEXGEL

Concrete Leak Sealing

Leak Sealing 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

Concrete Leak Sealing

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

Related Chemical Grouts

SealBoss ® 2400

Leak Stop & Seal
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

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SealBoss 1510 Water Stop Foam Customer Test

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SealBoss 1510 Water Stop Foam Customer Test

Brad of Pro Bond Systems Shares His Own Test of SealBoss 1510

– So we did two injections, we injected it with 1510 with 10% accelerator and we noticed that it worked perfect.

SealBoss Water Stop Foam

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.

Contact Your SealBoss ® Technician

SealBoss Seal Oakum & SealBoss 1510

SealBoss Seal Oakum 1500

Sealing Wide Joints with Oakum
San Pedro Pier Port of Los Angeles

SealBoss Seal Oakum: Your Solution to Sealing Large Openings

SealBoss Seal Oakum is an oil-free jute-based fiber of remarkable strength, ready to absorb high volumes of SealBoss 1510 Water Stop Foam. Oakum serves as a conveyance medium for the hydroactive foam resin, making it an effective solution for sealing large gaps.

Impregnated with 1510 Water Stop Foam, SealBoss Seal Oakum reacts upon contact with moisture, expanding to create a flexible yet robust seal. This is especially beneficial in combating active water infiltration in sizable openings, cracks, and joints.

SealBoss Seal Oakum: The Ultimate Remedy for Sealing Vast Gaps and Openings

Discover the strength and versatility of SealBoss Seal Oakum, an innovative, oil-free jute-based fiber system designed for quick and easy waterproofing. This eco-friendly material stands ready to dealing with large, daunting openings. With its remarkable ability to absorb high volumes of SealBoss 1510 Water Stop Foam, SealBoss Seal Oakum serves as an unparalleled conveyance medium, transforming the hydro active foam resin into a water tight barrier against leaks and moisture.

Impregnated with the cutting-edge 1510 Water Stop Foam, SealBoss Seal Oakum springs into action upon encountering moisture. It undergoes an immediate transformation, expanding to form a flexible, yet incredibly durable seal. This unique property makes it an invaluable ally in the battle against active water infiltration, offering a dependable solution for sealing expansive openings, deep-seated cracks, and challenging joints.

Designed for efficiency and ease of use, SealBoss Seal Oakum not only seals but also fortifies structures, providing peace of mind and long-lasting protection. Whether you’re facing the relentless pressure of water ingress or the daunting task of securing large structural gaps, SealBoss Seal Oakum emerges as the definitive solution, ready to tackle tough sealing challenges head-on. Embrace the power of innovation and safeguard your structure with the outstanding sealing capabilities of SealBoss Seal Oakum.

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Here’s How You Can Use It

For dry gaps between concrete slab segments, spray resin-saturated oakum with water or immerse it into a water-filled pail to kickstart the activation process. Once reactive, the oakum can be packed into the joints, forming a watertight seal between the concrete substrates.

Installation Guidelines for SealBoss 1500 Seal Oakum

Dip the SealBoss 1500 Seal Oakum into the activated foam resin. Remove it from the container and wipe off any excess material.
If needed, moisten joints or voids with water to prepare the surface for the resin-saturated SealBoss 1500 Seal Oakum.

To seal minor leaks, dip the saturated SealBoss Seal Oakum into water, which initiates the reaction process.

Position the saturated SealBoss Seal Oakum into the joint or void. Optionally, you can hasten the curing process by spraying the saturated oakum surface with water.

After the material has cured, cut away any surplus product from the substrate surface.
Leveraging SealBoss Seal Oakum not only provides an effective solution for sealing wide gaps, but also ensures the durability and longevity of your structures.

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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.