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Restoration Waterproofing

Restoration - Waterproofing

Restoration – Waterproofing with Injection Resins, Gels, and Foams

Restoration waterproofing projects represent a mix of various complex tasks, each with its unique set of challenges. The first crucial step is identifying the root source of the water infiltration, which at times can be a difficult process.

Diagnosis

A correct leak diagnosis might necessitate various steps, such as performing visual inspections of the inside and outside of the structure, examining the surrounding conditions, conducting flood tests, utilizing dye testing, creating mock-ups, and removing paints and finishes.

Waterproofing Restoration with SealBoss Water Stop Systems
– Resins, Foams, Gels, Packers and Pumps –

Setting Defined Objectives

Before starting a restoration waterproofing project, it is crucial to clarify the goals and expectations for every party involved.

It goes without saying that the primary aim of such a venture typically revolves around halting water intrusion. There are many techniques and products that can be used for this, such as polyurethane injection foams, gels, and resins, as well as acrylate injection gels and even epoxy resins in some circumstances. These methodologies come with their individual costs, levels of site disruption, and project timetables. It is essential that all of these elements are thoroughly considered and presented to the end customer, facilitating an informed decision-making process.

Understanding Water Movement and Migration

It is indispensable to understand some key concepts related to water migration and movement around and within soil, structures, voids, joints, and cracks.

Water is Not Always Visible

The obvious appearance of a leak in a specific location does not definitively imply that other areas are devoid of water ingress. Water invariably seeks the path of least resistance, typically navigating towards any openings, fissures, and low spots. Upon remediation of these lower areas, the water may find its way to other compromised zones.

Leak Detection Techniques

The leak detection process is further complicated if the repairs are undertaken during a period of relative dryness. Under such circumstances, leak migration might not become evident until the advent of the next rain event. For more controlled testing, it may be advisable to deliberately flood the surrounding area, creating conditions that could induce a leak at the time of inspection and repair. Conducting flood testing before, during, or after the repair work can contribute significantly towards pinpointing any areas where the leak may have migrated. Executing waterproofing repairs amidst active leaking can effectively help identify and repair leak migration issues.

Restoration Waterproofing Products

Polymer injection foams, resins and gels serve as viable solutions in restoration waterproofing. Their superior qualities make them ideal for sealing leaks, even in wet environments. Polyurethane foams are adept at sealing large leakages, both in volume and speed, expanding upon contact with water to block infiltrations effectively. On the other hand, super low viscosity resins and gels ensure a long-lasting solution for smaller, more intricate leaks, seeping into hairline cracks and curing to provide a waterproof seal. Implementing curtain injection behind a structure can effectively generate a waterproof, membrane-like barrier, thus sealing wet and damp spots within concrete and masonry structures.

At times, epoxy resins may be required to restore structural integrity, even in wet or damp conditions. For an in-depth comparison between epoxy and polyurethane injection, please refer to the detailed information provided here.

In Conclusion

Remedial restoration waterproofing is often an iterative, exploratory process that might necessitate adjustments along the way. Setting realistic expectations, keeping open lines of communication among all involved parties, and maintaining a keen eye for detail are important to the efficient and successful execution of a waterproofing process.

A well-executed waterproofing restoration can add years to the lifespan of a structure, safeguarding it against potential damage and preserving its aesthetic and functional value.

Restoration – Waterproofing Systems

Popular Water Stop & Leak Sealing Injection Links

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Our #1 Selling Polyurethane Injection Foam
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SealBoss ® 1570

Leak Sealing Foam Grout
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Hydrophobic Injection Foam

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

SealBoss ® 1570 LV

Leak Sealing Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam

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

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 foaming to high foaming depending application.

SealBoss ® 1403 SLV

Leak Sealing Injection Resin
Super Low Viscosity PUR Injection Resin

Two Component Flexible Resin
The solution for wet and dry surfaces and moving cracks. Extremely low viscosity for superior penetration in hairline crack injection.

SealBoss ® FLEXGEL

Leak Sealing Injection Gel
Hydrophilic Injection Foam Gel
Hydrophilic Gel

Versatile Hydrophilic Polyurethane Foam-Gel
Water activated single component hydrophilic Polyurethane grout.

SealBoss ® 2400

Leak Stop
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Acrylate Gel
Acrylic Gel

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

Restoration - Waterproofing

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Efflorescence and Leaks

Efflorescence – Indicator of Water Problems in Structures

Efflorescence, at first glance, may seem like a simple aesthetic issue. It presents itself as a white or occasionally vibrant and colorful, chalky residue on walls, especially around cracks and joints. This substance can evolve, often resembling delicate, hair-like filaments. Yet, beyond its surface appearance, efflorescence strongly signals the presence of a water leak.

A crack with efflorescence built-up has to be considered a leaking crack.

What exactly is efflorescence?

Efflorescence is the result of a variety compounds that have been dissolved and transported by water. When this water reaches the surface of materials like concrete or masonry, it evaporates, leaving behind minerals, metals and inorganic compounds, such as calcium hydroxide which interacts with atmospheric carbon dioxide to form fine calcium carbonate crystals.

The result is the characteristic residue which is mostly greyish or white. However, it can sometimes appear colorful if the water causing the efflorescence contains minerals or compounds that produce colors when they crystallize. Copper salts often yield blue or green efflorescence. Similarly, iron salts can lead to yellow, brown, or reddish hues, while manganese can give rise to pink or purple shades.

The presence of these or other metal ions in the water can lead to colorful efflorescence. These ions may come from the soil, water supply, or even from the building materials themselves. Therefore, colorful efflorescence not only indicates a moisture issue but could also point to the presence of specific minerals or contaminants in the environment.-

While efflorescence itself might not be harmful, it is a beacon signaling a potential moisture problem. As water continues to seep into building materials, it does not just evaporate from the surface. The moisture can be absorbed deeper into the material, leading to a process known as wicking. Over time, this persistent moisture can compromise the structural integrity of the building materials.

For inspectors and concrete repair contractors alike, recognizing efflorescence is crucial. It is not just about identifying a water leak; it is about understanding the capillary forces at play and the distribution of water within the structure that will cause the damage. By educating their clients about efflorescence, inspectors can provide valuable insights into potential problems that already may exist, even when the structure appears to be dry on the outside.

In summary, efflorescence is an indicator for moisture problems in a structure, even when it appears to be dry at the time of inspection. It forms when water with dissolved salts evaporates from concrete or masonry surfaces, leaving a white, greyish or even colorful residue. It is a a clear signal of deeper moisture problems, past and present, that can have long-term implications for the structural health of a building.

When it comes to polymer crack injection and structural repairs, understanding and addressing the root causes of efflorescence is essential.

Efflorescence and Crack Injection Repair
A Case Study at International Airport's Reservoir

Introduction
We know that efflorescence is a clear indicator of moisture issues within a structure. Its presence can signify past leakage, even when the surface appears dry. Addressing efflorescence build-up and active leaks can be crucial for the longevity of concrete structures.

This short case study highlights a repair project at an International Airport, highlighting the solutions in association with efflorescence and crack injection repair.

Project Overview
The Reservoir spillway structure at the International Airport required significant restoration and rehabilitation. The contractor was tasked with chemical grouting as part of this extensive project. The objective was to clean up all compromised concrete, crack inject all areas of present and past water leakage, patch it, and re-caulk all cold joints.

Identifying the Problem

Visible water infiltration and signs of efflorescence on cracks and joints were the primary concerns. Efflorescence around cracks and joints indicates past leakage, even in the absence of active water seepage at the time of inspection, and needs to be addressed.

The source of water intrusion was identified as rain runoff, which led to the oversaturation of the built-up and back-filled sections adjacent to the spillway walls.

Proposed Solution
The engineer recommended injecting the affected cracks and joints with a moisture-activated hydrophobic foam. This foam was specifically designed to address areas showing signs of efflorescence and visible water infiltration.

Execution
Custom scaffolding was erected to facilitate the repair process. The contractor’s certified crew utilized the SealBoss P2002, a portable high-pressure injection system capable of overcoming the hydrostatic and physical resistance forces within the wall, displacing moisture, and injecting the SealBoss 1510 Water Stop and Leak Seal Foam at the appropriate pressure and volume. Given that the concrete wall was approximately 12 inches thick, the SealBoss 13-100AL Evolution Packers were strategically installed by drilling directly into the cracks.

This approach was chosen based on the concrete’s quality to minimize the risk of spalling due to injection pressures. Each packer was reinjected as deemed necessary to ensure a comprehensive and durable seal. In many instances, the injected material traveled through honeycombed concrete, reaching areas several feet away from the injection point.

Whenever this happened, the injection was paused until the material reached a state of cure to ensured that subsequent injections would follow a new path of lesser resistance within the crack structure’s capillaries.

Results
The injection crew successfully halted the water intrusion well within the specified time frame. This efficiency meant that the reservoir could return to its regular levels much quicker than initially anticipated.

Note
As water may find its way to areas beyond the initial injection repair, there might be a future necessity for spot treatments in previously dry regions.

Conclusion
Efflorescence around cracks and joints, is a clear indicator of leakage, even if dry durning inspection. It often is a telltale sign of deeper structural problems.

The Reservoir project at the International Airport serves as a testament to the importance of timely intervention and the use of advanced techniques like crack injection repair. By understanding and addressing the root causes of efflorescence and water intrusion, structures can be preserved and protected for the long term.

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.

Pool Crack Injection Systems

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Pool Soil Settlement

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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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Pool Crack Repair

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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.

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Sealing Tie Holes - Water Stop System

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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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Seawall Repair

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Seawall Repair

Seawall Repair Methods

Commercial and Residential Seawalls

Seawalls serve as guardians of our coastlines, protecting from the ocean’s force, while also shielding properties by bays, rivers, and lakes. Yet, their resilience is tested by the ceaseless tides and natural elements, resulting in wear over time.

Introduction:
Seawall Failures and Effective Seawall Repair Strategies

Over the passage of time, even the sturdiest seawalls can exhibit cracks, becoming susceptible to water penetration. In certain scenarios, the very foundation of the seawall might shift due to the erosion of its supporting substrate. Proactively identifying and rectifying these concerns can stave off escalated damage, ensuring the seawall remains a steadfast defense against water and erosion.

Whether for private residences or commercial establishments, many seawalls are crafted with similar design principles. Their upkeep and restoration can be effectively managed using hydro-active, hydrophobic polyurethane foams for leak-sealing and water-stopping, as well as two-component or dual-component polyurethane foams for void-filling and elevation.

When it comes to repairing structural concrete damages and concrete spalls in seawalls and marine piles, epoxy injection resins can be a reliable option. These resins can provide long-lasting reinforcement to the affected area, helping to ensure that the seawall or pile can continue to withstand the stress and impact of waves and tides.

Understanding why seawall failure occurs and taking timely steps to prevent further damages is important to protect your land and any structures that may be impacted by ingress of water and shifting soils.

Why Do Seawalls Fail?
Causes & Warning Signs of Seawall Failure

Poor Maintenance | Lack of Inspection to Detect Problems Early
Erosion, Washout, Sinkholes
Footing, Bulkhead Shift Due to Erosion
Cracks and Expanding Cracks in Seawall
Rust & Corroded Rebar Expansion
Drain Failure
Environmental Factors – Natural Disasters

Regular and Proactive Inspections and Maintenance: A Key Strategy to Prevent Seawall Damage

Executing frequent inspections and prompt maintenance are integral to extending the lifespan of your seawall. These preventative measures can save you from costly repairs in the long run by addressing potential issues before they escalate.

A significant issue you may encounter is the clogging of drain and weep holes. These are crucial components in the seawall’s design as they allow water accumulated behind the wall to drain. If clogged, water will build up, leading to added stress on the seawall and potential damage. This accumulation of water can soften and loosen the soil behind the wall, which could increase pressure and raise the water table. Such conditions might result in the formation of cracks in the seawall structure, thus creating new, unintended pathways for water flow and consequently causing soil erosion.

Understanding the Implications of Soil Erosion due to Accumulated Damages

Water migration through these new pathways, cracks, voids, and defects can lead to a gradual weakening of the seawall. As the wall undergoes consistent damage and erosion, its foundation may lose support and shift. This can be particularly problematic because soil erosion has the potential to create sinkholes. These sinkholes can further collect water, accelerating the decay process and potentially leading to the seawall’s failure.

Hence, regular inspection and maintenance can help identify early signs of soil erosion and structural damages, thereby preventing severe consequences and ensuring the longevity of your seawall.

Seawall, Bulkhead, Revetment Repair:
Advanced Polymer Systems and Specialized Equipment Solutions

Seawall Insights: Lifespan, Costs, and Innovative Repairs

Seawalls are meticulously designed for specific functions. However, many seawalls have a lifespan of just 25 – 50 years, and possibly less without inspections and maintenance.

Depending on the location, the cost of replacing a deteriorating seawall can range from $200 to in excess of $1000 per foot, prompting many homeowners to seek alternative solutions.

Fortunately, available repair solutions allow for addressing signs of seawall distress early on. The use of polyurethane grouts and epoxy resins can effectively seal leaks, fill voids, stabilize surrounding soils, and provide structural repairs where needed.

Seawall Repair Techniques Used For Seawall Repair

Seawall repair procedures and techniques include polyurethane crack injection, soil stabilization injection grouting, permeation grouting, structural support and void fill grouting, as well as structural epoxy injection.

By reinforcing, sealing, and repairing seawalls, you can not only maintain their structural integrity but also considerably prolong their lifespan.

SealBoss Offers a Suite of Advanced Repair and Injection Systems tailored for Seawall Restoration

We offer specialized products and systems designed to stop water intrusion, seal gaps, mend leaks, fix cracks, and fortify unstable soil for comprehensive seawall and bulkhead repair. Prolong the lifespan of your seawall for many more years, all at a cost significantly lower than a complete replacement.

Polyurethane Foam Injection Technology

Delivering unmatched robust performance in challenging and wet conditions, polyurethane injection grouting presents a comprehensive array of repair solutions, featuring a variety of grouts and application methods.

Depending on the specific need, these methods can be combined for optimal results. Among the prominent techniques are:

Crack Injection and Curtain Grouting: These methods are used to seal cracks and crevices, prevent general water ingress and further deterioration and erosion
Soil Stabilization and Permeation Grouting: By solidifying the soil around the seawall, this technique ensures a stable foundation, reducing the risk of shifts or collapses. This process involves injecting grout into the soil to reduce its permeability, thereby preventing erosion and water infiltration
Structural Support and Void Fill Grouting: Voids or gaps behind or beneath the seawall can compromise its stability. This technique fills these voids, ensuring the seawall remains firm and upright.

Epoxy Resin Seawall Repair Technology

Specially designed to provide structural strength repairs to concrete cracks and spalling damages, epoxy injection provides sustained structural reinforcement to the vulnerable portions of seawalls, concrete dock posts, and other maritime structures that manifest signs of gradual deterioration. Primarily utilized above the water table.

Epoxy Injection: Filling, sealing of crack and voids, and providing structural adhesive strength to concrete structures.

Seawall Repair Equipment

Adequate product delivery and application equipment is vital, as it ensures repair materials are
accurately and efficiently injected and delivered at the necessary pressures, achieving the desired penetration and comprehensive repair.

Injection Pumps, which deliver repair materials like polyurethane grouts and epoxy resins to damaged areas; Injection Packers, which connect the pump to the seawall and ensure efficient material delivery; and Injection Soil Lances and Needles, designed to treat and stabilize the surrounding soil.

By leveraging these products and techniques, one can ensure that seawalls remain robust and resilient against the challenges posed by nature and time.

When to Use Polyurethane Foam Grout for Seawall Repair

Enter polyurethane foams, a game-changer in seawall repair. These lightweight injection resins offer a multi-pronged solution: they seal leaks, fill voids, mix with soil to create a solid, impermeable mass, and support footings and foundations.

Understanding the Applications of Single Component Hydro Active Foams for Seawall Repair

SealBoss 1510 Polyurethane Foam is a single component foam, it excels in sealing cracks and offers impressive soil penetration and stabilization properties. It is activated by an accelerator and is particularly effective for soil permeation and consolidation.
Used for crack injection to stop water flow, seal leaks and fill voids, curtain grouting to seal any gaps between structures and their surrounding substrates, and for soil permeation and stabilization, ensuring the firmness of the substrate, footing, and the entire structure – this versatile, single-component, accelerator controlled, hydrophobic polyurethane foam is activated upon contact with water.
During the reaction phase, SealBoss 1510 infiltrates deep into the cracks or surrounding soil. This permeation helps seal all voids and fissures, simultaneously stabilizing and anchoring any loose substrate. This feature makes it an ideal solution for maintaining structural integrity and preventing water damage.

Other SealBoss Hydroactive Foams and Gels to Consider:

SealBoss 1570 and 1570LV flexible hydrophobic foams.
SealBoss Flexgel hydrophilic gel.
SealBoss 2400 ultra low viscosity acrylate gel.

Understanding the Applications of Plural Component / Two Component Foams for Seawall Repair

SealBoss 1640, is a two component, structural foam, best suited for filling voids behind and underneath structures, especially in larger aggregate environments.
This robust foam offers formidable support, playing a pivotal role in strengthening the seawall’s stability. Yet, it is vital to recognize its constraints: while adept at gap-filling, it is less suited for permeating soil.
SealBoss 1640 can exert significant pressure and lifting forces. Thus, a thorough understanding of your seawall’s specific conditions and needs is imperative before deploying this product. When applied within its recommended parameters, SealBoss 1640 can be potent ally in fortifying seawalls, enhancing their durability and prolonging their operational life.

Other SealBoss Two Component Foam to Consider:

SealBoss 1625

When to Use Epoxy Crack Injection for Seawall Repair

Resilient epoxy injection resins are used for structural crack repairs in seawalls and marine piles. Cracks are often present in areas that are above the water table and should be preferably dry at the time of application.

Understanding the Applications of Epoxy Resins for Seawall Repair

SealBoss 4040 epoxy injection resin and SealBoss 4500 epoxy paste are outstanding products in the realm of structural concrete restoration, and an important product for seawalls, concrete dock posts, and various harbor infrastructure repairs exhibiting deterioration, cracking, and spalling. Epoxy resins can proficiently seal and repair cracks and significantly enhance the structural robustness of concrete marine installations.

Other SealBoss Epoxy Resins to Consider:

SealBoss 4050 SLV

What SealBoss Equipment Do I Need For Seawall Repair?

We recommend our SealBoss Injection Packer and Surface Port System for crack repair, Injection Lances and Grout Injection Needles for permeation grouting and soil stabilization. SealBoss also supplies a wide variety of injection pumps.

Equipment and Accessories for Seawall Repair

Injection Pumps: These are used to deliver repair materials, such as polyurethane grouts and epoxy resins, into the cracks, voids, or other damaged areas of a seawall.
Injection Packers: Packers act as a bridge between the injection pump and the seawall. They ensure that the repair material is securely and efficiently delivered to the intended area.
Injection Soil Lances and Injection Needles: Specifically designed to treat the soil around the seawall. Soil lances are designed to penetrate deep into the ground, ensuring that the repair material reaches the desired depth.
Seal Oakum: Soakable Oakum to stop leaks in large gaps

Audio Show:
Seawall Repair Discussion and Valuable Information

Tap into our Seawall Repair Network of Specialists

SealBoss works with a network of seawall, foundation, and specialty polymer injection specialists. Discover a nearby seawall repair contractor in our national network. Reduce your expenses on seawall and concrete bulkhead repairs.

Two industry professionals talk about seawall repair with single and dual component polyurethanes. The procedures discussed cover general injection grouting procedures, including erosion control, permeation grouting and seawall support and footing stabilization.