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Pool Crack Repair

Swimming Pool Crack Repair

Introduction

Discover the definitive solution for swimming pool crack repairs with our SealBoss Polyurethane Injection Foam Pool Crack Repair Products and Kits.

Our professional-grade crack injection method offers a permanent, robust solution that extends beyond mere cosmetic fixes.

Utilizing high-density, NSF/ANSI 61 certified polyurethane foam, our system not only seals but strengthens pool structures, ensuring a long-lasting repair that withstands environmental stress and hydrostatic pressure.

Perfect for concrete, gunite, shotcrete, and pebble tech finishes, this method delivers both functionality and aesthetic satisfaction, providing peace of mind to pool owners.

Cause of Damages

Pool cracks caused by the settlement of back fill, poor soil condition in general and stressed concrete can lead to leaks, worsening structural damages and water related damages to nearby structures.

Swimming Pool Crack Repair Solution

Contrary to the misconception by some pool owners that crack injection just provides a temporary patch-up, professional water stop leak sealing injection repair actually provides a lasting fix.

This method makes use of a high-density polymer foam, which holds the NSF/ANSI/CAN 61 Certification, validating its safety for interaction with drinking water. During the injection phase, the foam product effectively penetrates deep into the structure while sealing every crevice and crack in the process.

As the polyurethane foam encounters moisture, it expands, infiltrating each crack and crevice during the pressure injection process. This ensures that it effectively plugs the full thickness of a concrete pool wall, making for a comprehensive repair.

Once it cures, this inert, waterproof resin maintains its volume and remains flexible, unaffected by standard ground movements and temperature fluctuations. Therefore, the possibility of shrinkage, a common issue with other solutions, is not a concern. This method of repair is built to last, providing you with a durable and reliable fix for your concrete structures. This ensures that they can satisfy both functional requirements and aesthetic preferences.

SealBoss Polyurethane Injection Foam Pool Crack Repair Products and Kits permanently repair leaking cracks and joints in concrete, gunite, shotcrete and pebble tech finished swimming pools and spas.

Negative Side Crack Injection is Conveniently Performed from the Inside of the Structure

For this type of Leak Sealing Repair, SealBoss Pool Crack Repair Kits provide an effective, easy to use water stop / leak sealing crack repair solution by creating an airtight and watertight hydrophobic seal that repels water once cured. Polyurethane injection foam systems are designed to work in wet environments.

The pool leak sealing repair kit includes a SealBoss P2002 high-pressure injection pump, SealBoss 1510 hydrophobic resin with 15x catalyst and SealBoss mechanical Injection Packers which when used together allows the user to displace the hydrostatic pressure and fill the crack with a foam that reacts from the moisture present.

Key Features:

Permanent swimming pool crack repair for leaking concrete, gunite, shotcrete and pebble tec finished pools and spas
Permeates into cracks and fissure, plugging the entire thickness of the concrete
SealBoss 1510 high-density, hydrophobic polyurethane foam expands — creating a compression seal
NSF/ANSI 61 Drinking Water Contact Certified

Pool Crack Repair – Water Stop & Leak Sealing Injection Pro Kit

Injection Resin: SealBoss 1510 w/ 15x Accelerator | NSF/ANSI 61 Drinking Water Contact Certified
Injection Packers: 1/2” 13-100 Evolution Aluminum Packers
High Pressure Pump: P2002 Single Component Injection Pump
Cleaning: R70 Pump Flush

Popular Water Stop & Leak Sealing Injection Links

Structural Repairs and Inspections

While in most cases PU injection is the repair of choice to permanently seal water bearing cracks in concrete structures, there is sometimes the need for a structural repair.

For structural repairs, please refer to the SealBoss Epoxy Injection System and Epoxy Repair Kits. You may also want to read our Epoxy versus Polyurethane article for in-detail information.

Please be advised that any underlying and all ongoing causes of structural damages, formation of cracks and settling — including, but not limited to, back fill settlement and poor soil density — should be investigated by a specialist and corrected, if deemed necessary. For additional information on Swimming Pool Soil Settlement click here.

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Swimming Pool Soil Settlement

Soil Settlement effecting Swimming Pools – Overview:

Insight, Management, and Prevention

Swimming pools represent more than just a body of water; they are a symbol of luxury, a hub for family gatherings, a resource for physical fitness, and a sanctuary for relaxation. However, the sanctity and utility of this valuable asset can be jeopardized by soil settlement, a phenomenon leading to structural instability and potentially severe damage.

In this overview, we look at what leads to soil settlement near swimming pools and propose a noteworthy solution: the SealBoss Polyurethane Polymer Injection System.

For Information on Pool Crack Repair click here

Understanding Soil Composition and Settlement

Soil, an intricate composite of organic matter, minerals, gases, and liquids, showcases variations in characteristics such as density and stability. Soil settlement refers to the downward movement of the soil surface, triggered by alterations in the layers beneath. Several factors contribute to this process:

Moisture Content: Excessive water can oversaturate the soil, diminishing its strength and compaction, which can be a result of heavy rainfall or inadequate drainage.
Soil Types: Different soil types possess varying load-bearing capacities. Loose or sandy soils, under the burden of a swimming pool, can shift and settle over time.
Inadequate Compaction: If the soil wasn’t adequately compacted during pool construction, it might settle over time, leading to depressions or gaps around the pool. Proper compaction is crucial during construction to prevent future settling issues, a step that some pool installers neglect, leading to inevitable settlement.
Pool Leaks: Persistent water seepage from leaking pipes can erode the soil, leading to sinkholes in severe cases. Thus, prompt addressing of water leaks is essential.
Insufficient Footings: Proper footings are necessary for supporting the pool deck’s load. Insufficient footings can lead to settlement issues.
Improper Drainage: If the pool is installed lower than the surrounding land, proper drainage is crucial. Water accumulation can undermine the foundation and trigger settling issues.

Ramifications of Soil Settlement around Swimming Pools

The implications of swimming pool soil settlement are substantial and diverse:

Structural Damage: The foremost concern with soil settlement is the potential for grave structural damage. Uneven ground can cause the pool to shift, crack, or in extreme cases, collapse.
Aesthetic Implications: Soil settlement can create unattractive gaps or depressions around the pool, which can accumulate water, further escalating soil erosion.
Safety Risks: Uneven surfaces and gaps around the pool can be tripping hazards, posing a significant risk to children and older individuals.
Concrete Slabs and Pavers Settling: Soil issues can lead to settling concrete slabs and pavers around the pool deck. The necessary stabilization method will depend on the pavers’ base material.

The SealBoss Polyurethane Foam Injection System

Addressing soil settlement around swimming pools demands swift and effective solutions. The SealBoss Polyurethane Foam Injection System offers several advantages:

Versatility: The system is compatible with a broad range of soil types and conditions, demonstrating its versatility in tackling soil settlement.
Non-disruptive: The SealBoss system is minimally invasive, eliminating the need for excavation or heavy machinery and preserving the pool area’s aesthetics during the remediation process.
Rapid Curing Time: The SealBoss polyurethane foam cures swiftly, reducing pool usage downtime considerably.
High Expansion Ratio: The foam boasts a high expansion ratio, enabling it to fill considerable voids, compact and consolidate soil, and provide lift in areas where necessary.
Durability: The SealBoss system ensures lasting stabilization, reducing the risk of future soil settlement.
Implementing the SealBoss System for Soil Settlement Management

Implementing the SealBoss Polyurethane Foam Injection System:

Assessment: An exhaustive assessment is carried out to determine the extent of soil settlement and pinpoint areas needing remediation.
Preparation: Injection points are strategically identified and prepared around the pool’s affected areas.
Injection: Specialized equipment injects the SealBoss polyurethane foam into the soil. The foam expands, filling voids and lifting the settled soil.
Observation and Adjustment: The process is closely monitored, with adjustments made as necessary to achieve optimal lift and stabilization.
Final Inspection and Clean-up: Post-injection, a final inspection ensures the desired outcome has been reached. The injection points are then sealed, and the area is cleaned up, restoring the aesthetics of the pool area.

Preventive Measures Using the SealBoss System

While the SealBoss Polyurethane Foam Injection System provides an effective remediation solution, it can also serve a preventive role during pool installation:

Pre-construction Assessment: A thorough analysis of soil conditions can help predict potential settlement issues, considering the soil type, load-bearing capacity, and moisture content.
Soil Stabilization: The SealBoss system can stabilize the soil prior to pool installation, preventing soil settlement from the outset.
Ongoing Monitoring: Regular checks can identify potential settlement issues early, allowing for prompt remediation using the SealBoss system.

In conclusion, soil settlement around swimming pools is a common issue that can lead to structural damage and safety hazards if left unaddressed. Comprehending the contributing factors is vital for prevention and remediation.

The SealBoss Polyurethane Foam Injection System offers a significant solution, contributing to versatile and reliable settlement management. Its application spans from post-settlement remediation to preventive measures, demonstrating its comprehensive utility in preserving the longevity and safety of your swimming pool.

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10 Minute Crack Repair | Cartridge

How to Use SealBoss 6060 Crack and Spall Repair Cartridges

Play Video about SealBoss 6060 10 Minute Crack Repair Dual Cartridge

SealBoss ® 6060 10 Minute Crack Repair and Spall Mender

22 oz Dual Cartridges
Quick & Simple Application – No Costly Equipment Needed
Fast cure formula reduces downtime
Wide application temperature range
Can be filled with clean, oven-dried silica
Super low viscosity – deep penetration into cracks and fissures

SealBoss 6060 QuickFix: Fast-Setting, Ultra Low Viscosity Concrete Repair Resin

Key Features

Fast-Setting Formula: Designed for quick repairs, SealBoss 6060 QuickFix sets rapidly to mend cracks and spalls in concrete slabs, floors, and damaged joints.

Ultra Low Viscosity: This two-component urethane resin deeply penetrates into fine cracks and fissures, ensuring a robust and durable repair.

Versatile Application: Ideal for industrial, commercial, and residential settings, SealBoss 6060 QuickFix effectively repairs damaged and uneven concrete surfaces.

Patch and Stitch Concrete Repair

Patch: Easily correct uneven concrete surfaces and restore their functionality and appearance with minimal downtime.

Stitch: The resin’s deep penetration mends cracks, seamlessly bonding the concrete to restore structural integrity.

Professional Grade
Trusted by professionals, SealBoss 6060 QuickFix is engineered to deliver superior results in various environments, ensuring long-lasting repairs.

'As a convenient alternative to bulk products, and elaborate equipment and machinery, SealBoss also offers the professional grade 6060 10 Minute QuickFix System in 22 oz. Dual Cartridges for smaller jobs, where a limited amount of product is needed.

For best results we recommend that you to follow a few simple guidelines and cartridge/product conditioning techniques prior to application.

Condition the cartridge to room temperature in colder climates. Shake cartridges prior to use. Push out any air by moving product through the static mixer while holding cartridge in an upright position. Dispense and discard a small amount of product into a dedicated vessel. Now your cartridge is primed and ready to go.

Inquire more about the SealBoss Cartridge System when you call us here at SealBoss. Your representative will be happy to help you out.'

Chris Coderre

National Sales Manager

SealBoss Cartridge System

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Below Grade Waterproofing

Below Grade Waterproofing: Innovative Solutions for Complex Challenges

In the realm of construction and building maintenance, below grade waterproofing presents a unique set of challenges, especially when dealing with sensitive areas where direct access to the area of leakage is restricted and standard waterproofing crack injection methods cannot be applied.

A recent case involving a below grade mechanical room with water intrusion issues highlights the innovative approaches and solutions available in today’s construction industry.

Polyurethane Polymer Gel and Foam Injection are effective methods to seal areas that are not easily accessible. With direct and indirect chemical grout delivery methods available, a wide array of below grade waterproofing problems can be resolved.

In this specific case grout injection lances were the delivery method of choice to combine waterproofing techniques such as soil permeation and consolidation grouting and curtain injection grouting to seal a subterranean mechanical room of a hospital.

Below Grade Waterproofing
Using Injection Lances and Polymer Gel

The Challenge: Water Intrusion in a Below Grade Mechanical Room

A mechanical room located below grade was experiencing water intrusion through shrinkage cracks and cold joints. The complexity of the situation was heightened by the fact that the problem could not be addressed from the negative side (inside the mechanical room) due to the placement of conduit and utility pipes. This scenario is not uncommon in below grade waterproofing projects, where access and space constraints often limit traditional repair methods.

Seeking Expert Solutions

In response to this challenge, the engineer overseeing the project reached out to SealBoss, a renowned name in the field of waterproofing and chemical grout injection solutions. SealBoss proposed a soil permeation and consolidation grouting and curtain injection grouting solution using SealBoss FlexGel hydrophilic polyurethane polymer leak sealing foam gel, a method well suited for this complex below grade waterproofing scenario.

The Process – Soil Permeation Injection and Consolidation Grouting with Injection Lances

Once the proposal was approved by all parties involved, the injection process began. The first step involved drilling cores to confirm the layout of below grade structures. During this phase, an unexpected utility bay was discovered, necessitating a modification in the layout of injection points to accommodate these below grade structures.

Installation and Injection Techniques

The installation process involved driving ½” soil injection lances into the core holes and installing female couplers to work with the custom applicator built by the contractor.

SealBoss Grout Injection Lances for soil permeation and consolidation grouting and curtain injection grouting.

This step was crucial for ensuring that the SealBoss FlexGel would be injected precisely where needed. Before the injection of FlexGel, each hole was initially flooded with water using a SealBoss IP495 Pump, specifically dedicated for water injection. This flooding was essential to suspend the strata below and prepare it for the FlexGel injection.

FlexGel Injection: Creating a Waterproof Barrier

Each hole received an initial injection of 3 gallons of water, followed by 1 gallon of FlexGel neat out of a separate dedicated SealBoss IP495 polymer injection pump. A final injection of up to 1 gallon of water through the designated water pump was then administered. During the FlexGel injection, the lance was lifted to create a vertical curtain, effectively wrapping around the found utility bay. Additional material was pumped below the elevation of the bay on either side to flood the cavity between the utility bay and the exterior of the mechanical room, creating a comprehensive waterproof barrier.

Results and Follow-Up

The initial injections were completed within a few hours, but additional cores had to be made to proceed further. A week after the installation, the area experienced heavy rains for three days. The hospital maintenance staff reported that the leak had subsided, marking a successful application of below grade waterproofing using the Curtain/Blanket Injection method with FlexGel.

Conclusion: Below Grade Waterproofing Success

This case study exemplifies the effectiveness of innovative below grade waterproofing techniques in addressing complex water intrusion issues. The use of FlexGel Hydrophilic gel in a Curtain/Blanket Injection method proved to be an efficient solution for a challenging situation, highlighting the importance of choosing the right approach and materials in below grade waterproofing projects. As the construction industry continues to evolve, solutions like these offer hope and reassurance for tackling even the most daunting waterproofing challenges.

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Below Grade Waterproofing - Water Stop System

SealBoss ® FLEXGEL

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.

IP495 Pump

Polyurethane Injection Pump

Larger Projects, Extended Injection
Electric Motor
Piston System
2500 psi – 1 Comp.

Grout Injection Lances

STAINLESS STEEL

Dimensions
12″
36″
60″

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Pressure Grouting

Pressure Grouting with Polyurethane Chemical Grouts and Injection Lances

Introduction:

Pressure grouting is an essential technique in construction and civil engineering, enhancing the strength and stability of various structures by stabilizing the subsoil. This method involves injecting grout into voids or cracks in concrete, soil, or rock to fill them and improve their load-bearing capacity. Among the many types of grouts available, polyurethane grouts, a.k.a. chemical grouts, stand out for their unique properties and versatility. In this article, we will explore the intricacies of pressure grouting, focusing on the benefits and applications of polyurethane grouts, as well as the use of injection lances for optimal grout delivery.

What is Pressure Grouting?

Pressure injection grouting in geotechnical applications involves injecting grout under pressure into strata of soil to strengthen the soil by compaction, adhesion and by filling voids, cavities, and fissures. This technique is commonly used for:

Foundation Stabilization: Strengthening the foundations of buildings and other structures
Soil Stabilization: Enhancing the load-bearing capacity of soil
Leakage and Erosion Control: Sealing leaks in soils and structures such as earthen dams
Void Filling: Filling cavities or voids in rocks or soil

The success of pressure grouting depends on the type of grout used, the injection pressure, and the specific site conditions.

PU Grout Systems for Pressure Grouting Applications

Chemical Grouts

Chemical grouts are fluid materials that transform into a solid or gel state after injection, providing exceptional sealing and strengthening properties. Key features of polyurethane grouts include:

Versatility: Chemical grouts can be customized for various conditions, making them ideal for a wide range of applications
Penetration: Due to their low viscosity, chemical grouts can penetrate fine cracks and pores that other grouts might not reach
Rapid Setting: These grouts can set quickly, which is beneficial for time-sensitive applications
Longevity: Once set, chemical grouts offer long-lasting stability and resistance to environmental factors

Applications of Polyurethane Grouts

Permeation Grouting: Used to improve the stability and load-bearing capacity of soils by filling the voids and pores within the soil matrix
Foundation Underpinning: Supports and stabilizes existing foundations by filling voids and compacting loose soil
Leak Sealing: Effective in sealing leaks in soil, such as around underground structures and pipelines
Void Filling: Quickly fills voids in soil, preventing settlement and ensuring stability

Injection Lances for Optimal Grout Delivery

Permeation Grouting Injection Pipes, also known as Grout Injection Lances or Soil Lances, are designed to transport polyurethane grout deep into various soil types. At SealBoss, our injection lances come in distinct versions to provide the best possible grout delivery for different soil compositions.

Advantages of Injection Lances

Ease of Use: Ram injection lances penetrate soil without the need for large equipment, making them user-friendly and efficient
Depth Control: Injection lances can be combined to reach specified injection depths, ensuring precise delivery of grout
Controlled Flow: The lack of a peripheral gap after installation permits controlled flow of injection grouts, enhancing effectiveness

Applications of Injection Lances

Lower Depth Applications: Ideal for penetrable soils at lower depths
Permeation Grouting: Effective for improving soil stability by ensuring even distribution of grout
Soil Stabilization: Enhances the stability of loose or sandy soils
Foundation Underpinning: Supports and stabilizes foundations by injecting grout at specific depths
Grout Curtain Injection: Creates barriers to control water flow in soil
Lifting Applications: Useful for lifting and stabilizing slabs and foundations
Industrial Foundation Stabilization: Stabilizes industrial machine foundations and slabs.

Choosing the Right Polyurethane Grout and Injection Method for Your Project

Selecting the appropriate polyurethane grout and injection method for your pressure grouting project depends on several factors, including the nature of the soil, the specific requirements of the project, and the environmental conditions. Using injection lances can enhance grout delivery, particularly in soil stabilization and permeation grouting applications.

Conclusion

Pressure grouting with polyurethane grouts, combined with the use of injection lances, offers a versatile and effective solution for soil stabilization and other related challenges. By understanding the unique properties and applications of polyurethane grouts and the advantages of injection lances, engineers and contractors can make informed decisions to ensure the stability and longevity of their projects.

At SealBoss, we provide high-quality grouting solutions and equipment tailored to meet the diverse needs of our clients. Whether you are dealing with foundation issues, soil stabilization, or leak sealing, our range of polyurethane grouts and injection lances can help you achieve optimal results.

For more information on our products and services contact our expert team today!

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Sealing Tie Holes

Tie Holes a.k.a. Tie-Rod Holes in Concrete Structures

Introduction

Tie holes, also known as tie-rod holes, are small openings left in concrete structures after removing tie rods used in formwork. These holes can leak under hydrostatic pressure. An effective solution is polyurethane polymer foam injection.

In this article, we explore how a contractor effectively sealed tie holes and shrinkage cracks in water tanks for a rural water district. Utilizing the SealBoss Injection System, the team successfully resolved these challenges. This case study underscores the critical role of proper training and specialized equipment in preserving the integrity of concrete structures.

What are Tie Holes?

Tie holes are small openings in concrete structures that result from the removal of tie rods. Tie rods are essential components used in concrete formwork, which is the mold into which concrete is poured to achieve the desired shape. These rods help maintain the alignment and stability of the formwork during the concrete pouring and curing process.

Tie holes may start to leak under hydrostatic pressure caused by a source of water on the opposite side of the structure.

Polyurethane Polymer Foam Injection is an effective method to seal leaking tie rods permanently.

Sealing Tie Holes and Cracks

A Case Study in Effective Water Tank Repair

In the world of construction, particularly in the construction of water tanks, shrinkage cracks and tie-holes are common issues that can lead to slowly weeping or even significant leaks. These problems are often accompanied by visible efflorescence, signaling a need for immediate and effective repair.

A recent project by a contractor in a rural water district expansion north of Atlanta, Georgia, perfectly illustrates how these challenges can be met with the right expertise and equipment.

Encountering the Challenge

During the construction of water tanks in this project, the contractor encountered both shrinkage cracks and tie-holes showing signs of leakage.

To address these issues effectively, the contractor sought on-site support and comprehensive systems training, specifically in the use of SealBoss 1510 NSF Hydrophobic Water Stop Foam and the P2002 High-Pressure Injection Pump.

The Training and Repair Process

The training began with a thorough inspection of the tank to identify the most actively leaking areas.

This was followed by a demonstration of the SealBoss Injection System application. The repair process involved a strategic approach to drilling holes:

The 1, 2, 3, 45 Degree Injection Method was used for the shrinkage cracks, and for sealing the tie-holes, a 45-degree hole was drilled 4 inches from the edge of each tie-hole until the steel insert was reached.

Preparation and Injection

Before the injection process, each drilled hole was pre-injected with water using a spray bottle. Given the ambient temperature of 38 degrees Fahrenheit, hot water (between 70 and 90 degrees Fahrenheit) was used for pre-injection to assist with the catalyzation time of the 1510 foam in the cold concrete. After flushing the holes, the installation of the SealBoss 13-100 AL Evolution Mechanical Packers commenced, followed by the injection process using the P2002 high-pressure injection pump.

Hands-On Learning and Independent Operation

The P2002 pump, known for its simplicity and drill-operated mechanism, was explained in detail. The training emphasized understanding injection pressure and the patience required for successful application.

Initially, the technician assisted with the pump operation, but within 10 minutes, the crew was able to inject independently.

Each packer was injected until there was positive refusal of material around each tie hole, and the same process was applied to the cracks.

Ensuring Long-Term Success

Once the crew gained confidence in operating the system, the focus shifted to cleaning and maintenance of the pump, ensuring its longevity and effectiveness for future projects.

Conclusion

This project north of Atlanta, Georgia serves as a prime example of how proper training and the right equipment can effectively address leaking tie holes and shrinkage cracks in new water tank construction.

The use of SealBoss 1510 NSF hydrophobic foam and the P2002 high-pressure injection pump, combined with hands-on training and a strategic approach to sealing, provided a durable solution to the problem of shrinkage cracks and tie-holes.

This case study not only highlights the importance of addressing these construction challenges promptly but also demonstrates the value of expert guidance and training in ensuring the longevity and integrity of water storage facilities.

Related Articles

Sealing Tie Holes - Water Stop System

SealBoss ® 1510

Concrete Leak Sealing

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 ® 15X ACCELERATOR

Accelerator for SealBoss Single Component Injection Foams

Accelerator For 1510/1570 PU Injection Foam. Adjust foam gel-time and foam expansion from low foamer to high foamer depending application.

P2002 Injection Pump Standard

Polyurethane Injection

Light Weight, Modular Design
Electric Drill Operated
Single Piston System
6000+ psi – 1 Component

13-100AL Evolution

ALUMINUM MECHANICAL PACKER

Dimensions
1/2″ X 4″
13 x 100mm

13-100AL Evolution

Standard Packer

Economical packer with removable anti-return valve in zerk permits port-port travel technique by removing the zerk fitting. Suitable for PU, EP, Polyacrylate, and Silicate grouts.

Bestseller – a SealBoss Standard

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Irrigation District Canal Sealing

Injection Technologies for Irrigation District Canal Sealing

Introduction:

Irrigation canals are the lifelines of agriculture, channeling water across vast landscapes to nourish crops and sustain farming operations. Yet, the integrity of these canals is under constant threat from leaks and seepage, challenges that not only compromise water efficiency but also the very foundation of our agricultural infrastructure. In response to these challenges, innovative solutions such as polyurethane grout injection and grout-impregnated oakum applications have emerged as effective methods for canal sealing and repair.

Polyurethane grouts, oakum, and injection lance technologies represent significant advancements in the sealing and maintenance of irrigation district canals, addressing both traditional challenges and modern needs.

Polyurethane grout, with its expansive properties, offers a dynamic solution by filling cracks and voids with a durable foam that cures into a watertight seal, reinforcing the structural integrity of canals and minimizing water loss.

Oakum, a fibrous material impregnated with grout, provides a versatile and environmentally friendly option for sealing irregular or wide cracks, combining the resilience of natural fibers with the sealing power of modern grout.

The injection lance technique, used in both curtain and probe grouting, allows for precise application of materials, targeting specific seepage paths and ensuring a comprehensive barrier against water loss. Together, these methods enhance the efficiency of water delivery systems, safeguard the structural stability of irrigation canals, and contribute to the sustainability of agricultural practices by conserving water and reducing maintenance costs.

Polymer Grout Systems for Irrigation District Canal Sealing

The Challenge of Leaking Canals

The network of irrigation canals that crisscross agricultural regions is vast and complex. Managed by various entities, including the Bureau of Reclamation, this infrastructure spans thousands of miles and is crucial for the delivery of water to farmlands. However, the aging of these canals, combined with natural and mechanical damages, presents a continuous battle against leaks and seepage. Such issues not only lead to water loss but also pose significant risks to the structural integrity of canals, potentially resulting in erosion, sinkholes, and even catastrophic breaches that can have far-reaching impacts on agriculture and nearby communities.

Advanced Solutions for Irrigation District Canal Sealing

Polyurethane Grout Injection

Polyurethane grout injection stands out as a modern solution for addressing irrigation canal leaks. This method involves injecting a liquid polymer, which expands upon contact with moisture, into cracks and voids, thereby creating a durable, watertight seal. The rapid curing time of polyurethane grout minimizes downtime in water delivery, and its flexibility allows the structure to accommodate future movements, significantly reducing the likelihood of recurrent leaks.

Using NSF Drinking Water Contact Certified Polyurethanes

NSF-approved polyurethane grouts are essential in irrigation canal sealing because they meet stringent safety standards by the National Sanitation Foundation (NSF) and the American National Standards Institute (ANSI). This certification ensures these materials are safe for use in environments in contact with potable water, preventing contamination. SealBoss NSF/ANSI/CAN 61 Certified Products undergo rigorous testing to ensure they do not leach harmful contaminants, making them a reliable choice for maintaining the purity of water systems and complying with regulatory requirements for public health and environmental protection.

Addressing Seepage with Curtain and Probe Grouting

In addition to direct crack sealing, addressing pervasive seepage is critical for maintaining the functionality and integrity of irrigation canals. Techniques such as curtain and probe grouting play a crucial role in this context. Curtain grouting involves creating a grout barrier along the canals wall to block water pathways into the soil, while probe grouting with injection lances targets specific seepage paths, allowing for precise application and minimal environmental disturbance.

Steel Injection Lances, tailored for specialty grouting applications, facilitate the delivery of various polymer solutions directly into the soil. Their primary function is to inject these polymers deep into the soil to enhance its properties. By doing so, they significantly increase the soil’s strength, decrease its permeability, and improve its overall stability, making them indispensable tools for polymer leak sealing and soil stabilization efforts.

Sealing Joints in Concrete Canals

Concrete-lined canals face the challenge of leaking panel joints. SealBoss 1510 Water Stop Foam, used in conjunction with SealBoss Oakum, provides an effective solution for sealing these joints. The combination of these materials forms a water-impermeable barrier, ensuring the longevity and functionality of lined canal systems.

Grout-Impregnated Oakum

Grout-impregnated oakum represents a blend of traditional and modern repair techniques. Utilizing SealBoss Oakum—a fibrous material derived from old hemp ropes—saturated with specially formulated grout, this method can effectively be used to seal wider cracks and seals cracks and joints in irrigation canals. The natural flexibility of oakum, combined with the strength of the grout, offers a resilient barrier against water seepage, making it especially suitable to seal irregular and wide cracks, as well as leaking joints.

Soil Cavity Filling and Sealing

The stability and functionality of irrigation canals are compromised not only by the effects of soil erosion and washouts but also by the presence of wildlife, which presents unique and significant challenges.

Animals like gophers, muskrats, and beavers can create tunnels and burrows in canal berms, potentially leading to significant water loss and instability. Sealing these wildlife burrows with quick expanding SealBoss polyurethane foam grout not only prevents water leakage but also deters animals from re-establishing their burrows, thereby protecting the canal and adjacent agricultural lands from unintended water damage.

The Importance of Professional Expertise

While some maintenance tasks pertaining irrigation district canal sealing can be handled through do-it-yourself approaches, the complexity of canal repair often necessitates professional expertise. Companies like SealBoss offer comprehensive guidance and technical support tailored to the unique challenges of canal maintenance. Their referrals to experienced contractors ensure that repair projects are executed effectively, safeguarding this critical infrastructure against the myriad challenges it faces.

Conclusion

The sustainability of our agricultural system relies heavily on the integrity of irrigation canals. Through the application of advanced sealing techniques and materials, combined with professional expertise, we can ensure the efficient delivery of water to farmlands, preserving the foundation of agricultural productivity and environmental stewardship for future generations.

Related Links

Structural Irrigation Canal Concrete Repairs

Structural Epoxy Repair System

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Irrigation Canal Sealing Systems

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Seawall Repair with Polyurethane Foams | Plural Component vs Single Component Foam

Seawall Repair with Polyurethane Foams
Plural Component vs Single Component Foam

Concrete Solutions Since 1988

This article contains an excerpt from the “SealBoss Concrete Solution Network Podcast – Seawall Repair | Bulkhead Repair | Erosion Control | Permeation Grouting”, featuring Jerald Sargent of Slabjack Geotechnical. Jerald has over 30 years of experience in the slabjacking and geo-technical industry. If you’d like to listen to the complete conversation, an audio version of the podcast is posted at the bottom of the article.

In this podcast we talk about the use of single and plural component foams for seawall repairs.

Both foam types have their place in seawall repair but the contractor needs to have a good understanding of their respective characteristics and area of application.

Single component (accelerator activated) foams offer outstanding crack sealing and good soil penetrating, permeation and soil aggregate stabilizing properties.

Plural component foams are excellent void fillers, support and lifter foams, predominantly used for slabjacking and slab lifting.

Single Component Foams are Preferred for Soil Permeation and Soil Consolidation — Plural Component Foams are Good for Filling Voids in Certain Applications

In the following Jerald discusses the use and limitations of Plural Component Foam.

Jerald Sargent: …Sometimes plural components make a lot of sense… where there’s obvious gaps behind the wall or maybe in a you know in a big boulder type of Bulkhead where they just use big rock rather than poured concrete. So plural components are good for filling voids in there and helping to lock [larger] aggregate together…

In most poured concrete walls we stay away from plural component simply because of the risks associated with it.

Going right along with that, one of the things that plural component is not appropriate for is injecting underneath the walls…

There’s virtually no permeation [into the soil] involved with plural component polyurethanes. It’ll [the soil] take up, it’ll absorb a little bit push through a little bit of that but it will not do it to the point where you have a solid structure built below the wall itself.

And I think that it is really important to understand the real limitation of the plural component polyurethane. And we use hundreds of thousands of pounds of a year in our slapjack in operation.

But it really isn’t appropriate in most cases to do a poured concrete wall [soil] stabilization.

To learn more about seawall repair and single and plural component foams you may want to listen to the podcast below.

Looking for a seawall repair contractor? – Call us at 714-662-4445.

Seawall Repair with Polyurethane Foam

Technical Podcast for the Infrastructure Repair Industry

A Conversation Between Two Industry Professionals
Episode 3

How To Podcast:
Seawall Repair | Bulkhead Repair | Erosion Control | Permeation Grouting

Podcast Details Here

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Seawall

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Polymer Soil Stabilization

A Modern Solution to Age-Old Challenges

The world of civil engineering is no stranger to the trials posed by unstable soils. From erosion and improper compaction to the effects of freeze-thaw cycles and the decomposition of organic materials, these factors can seriously compromise the structural integrity of any project. The result? Soils that shift and refuse to stay anchored, posing significant risks to structures and their foundations. For geotechnical engineers, the challenge has always been to find innovative solutions that not only reinforce the ground but also restore its ability to bear loads effectively.

Polymer soil stabilization, a cutting-edge soil injection system turn the tables on unstable terrains. Soils that were loose and unmanageable are transformed into cohesive, fortified masses. How it works: Polymeric resins, with their unique properties, seep into porous soils, filling gaps and compacting even the most stubborn terrains. This not only halts the processes of subsidence and erosion but also prevents the migration of fine particles. SealBoss offers polymer soil stabilization solutions that meet the highest industry standards.

Polymer Soil Stabilization

A Modern Solution to Age-Old Challenges

Polymer soil stabilization, a cutting-edge soil injection system turn the tables on unstable terrains. Soils that were once loose and unmanageable are transformed into cohesive, fortified masses. How it works: Polymeric resins, with their unique properties, seep into porous soils, filling gaps and compacting even the most stubborn terrains. This not only halts the processes of subsidence and erosion but also prevents the migration of fine particles. SealBoss offers polymer soil stabilization solutions that meet the highest industry standards.

The Mechanics Behind Polymer Foam Stabilization:

Permeation and Matrix Formation: The polymers permeate through loose sediments, soils, and sands, binding them together into a cohesive matrix forming a solid structure.
Erosion Control and Water Displacement: By displacing water from areas affected by erosion, they prevent further deterioration of the soil.
Void Filling and Void Management: Polymers effectively fill spaces left by decomposed organic matter or resulting from inadequate soil compaction.
Strengthening and Adhesion: Their unique ability to adhere to soil particles ensures the creation of a fortified substrate.

Performance Highlights of Polymer Soil Stabilization:

Polymer soil and sand stabilization efficiently treats unstable soils and sands in-situ, eliminating the need for excavation. These polymers compact treat loose or unstable soils, enhancing their structural strength and offering long-term stabilization. By permeating loose sediments, displacing water from eroded areas, and filling voids, they create a fortified soil matrix that resists erosion and subsidence. Additionally, NSF/ANSI/CAN 61 certification of the specific polymer foam resins ensures safety for potable water contact, emphasizing both their efficacy and environmental commitment. Geotechnical Engineers, kindly reach out to our technical team for detailed specification guidance and assistance.

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SealBoss Injection Needle for specialty grouting applications and product delivery into soil substrate, through small holes, Oakum Soakum Injection Technique and more. Suitable for PU, EP, Polyacrylate, and Silicate grouts.

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Concrete Leveling Polyurethane Foam

Introduction to Concrete Leveling Polyurethane Foam

Concrete leveling polyurethane foam offers an innovative solution for maintaining the integrity of concrete slabs. This versatile material addresses various underlying issues that can cause slabs to become uneven or unstable.

Erosion

Erosion is a primary cause of concrete slab instability. It occurs when water washes away the soil beneath the slab. This can happen due to several factors:

Improper Property Slope: Water directed towards the slab due to a slope can erode the soil
Gutter Runoff: Inadequate drainage systems can cause water to seep into the soil
Sewer Line Breakages: Wastewater from broken sewer lines can contribute to soil erosion

Substandard Soil Compaction

The foundation of a concrete slab depends heavily on the compaction of the underlying soil. Proper soil compaction reduces the space between soil particles, creating a solid base for the slab. If this process is skipped or done incorrectly, the slab is prone to sinking over time.

Expansive Soil

Expansive soils, which swell when they absorb water and shrink as they dry, pose a significant challenge to concrete slabs. This cycle of swelling and shrinking can cause the slab to lift, sink, and eventually crack, compromising its stability and appearance.

Tree Roots

Large trees near concrete slabs can also affect their stability. Tree roots can absorb water from the soil under the slab, causing the soil to shrink. Additionally, as these roots decay after the tree’s death, voids can form beneath the slab, leading to further instability.

Understanding the Causes

Understanding the factors that lead to concrete slab issues highlights the importance of using concrete leveling polyurethane foam. This solution not only addresses the root causes of slab instability but also provides a long-lasting fix, ensuring the durability and safety of concrete structures.

The Repair Process Overview

Concrete leveling foam, a two-component, high-strength polyurethane material, is pumped beneath sinking concrete slabs, sidewalks, driveways, or patios. It provides a strong foundation by filling the void and elevating the sunken concrete while expanding. The process is also known by various terms like polyjacking, concrete lifting, slab jacking, foam jacking, foam lifting, all achieving the same goal.

The Process in Detail

Leveling and Lifting: Utilizing the concrete slab itself to deliver polyurethane foam, our method raises the concrete, fills voids, and stabilizes soils. A small hole is drilled into the slab, into which a tapered delivery port is inserted. The injection gun, connected to the port, pumps the polyurethane material through the port and slab, with the foam expanding within seconds, compacting loose soil and lifting the concrete.

This highly accurate and simple process is executed via incremental injections. The lifting foam fully expands within a brief period, allowing for monitored elevation and prevention of over-raising the concrete slab.

Applications of Concrete Leveling Foam

Void Filling: Polyurethane foam is not limited to addressing concrete settling. It can also fill voids under slabs resulting from excessive settling or washouts. It imposes 15-25 times less weight than traditional mudjacking or cementitious grout mix, easing the pressure on a failed subgrade.

Joint/Slab Stabilization: Slab stabilization is critical when slabs lack support and are susceptible to cracking under heavy loads. This specialized foam, designed for joint/slab stabilization, fills voids to provide support and eliminate movement. Its slow reaction time and minimal expansion strength allow for thorough coverage under the slab or along a joint.

Concrete Leveling Polyurethane Foam Injection vs. Mudjacking

Concrete leveling foam offers several advantages over mudjacking, a method developed approximately one hundred years ago. Mudjacking is typicall messier and requires substantial machinery to transport and pump the heavy slurry under the slab. Any spillage can result in a significant mess. Mudjacking slurry, a mixture of sand, cement, and other natural materials, weighs approximately 100 pounds per cubic foot, compared to concrete leveling foam’s weight of 2.5 to 4 pounds per cubic foot. Moreover, the much larger 2-inch holes required for mudjacking can crack the concrete slab and provide an avenue for roots to penetrate.

Unlike mudjacking slurry, concrete leveling polyurethane foam is hydrophobic, inert, and waterproof, ensuring its structural integrity remains uncompromised when in contact with water. Conversely, mudjacking slurry can wash away upon contact with water, leading to further slab sinking.

Finally, concrete leveling foam operates with rapid effectiveness and exhibits prolonged durability. Upon being injected beneath the slab, it solidifies within mere minutes. On the other hand, mudjacking demands an extended application duration and frequently yields a shorter effective lifespan, which, dependent upon environmental factors and particular conditions, may only persist between 2 to 5 years before the slab descends again. This stands in sharp contrast to the notably extended typical longevity offered by concrete leveling foam.