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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

SealBoss ® 1510

Leak Sealing Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam Grout

Our #1 Selling Polyurethane Injection Foam
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1510 PU Foam & Oakum Pipe Plug Kit

SealBoss ® 1570

Leak Sealing Foam Grout
Water Stop Foam Grout
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
Leak Sealing
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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Water Stop

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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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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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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

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

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Dimensions
1/2″ X 4″
13 x 100mm

13-100AL Evolution

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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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Cold Joint Injection

Leaking Cold Joints Sealed

Cold Joints in Concrete Structures and the Polyurethane Polymer Solution

Introduction

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

What are Cold Joints?

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

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

Injection Process

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

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

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

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

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

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

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

Considering a Solution for Sealing Cold Joints During Construction?

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

Materials and Tools Used

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

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Leaky Basement Repair

Leaking Basement Repair Injection System

Home Leak Repair

Introduction

Water damage in a basement can harm your home’s value and safety. Leaks lead to mold, pests, and structural issues. SealBoss Leak Sealing Foam injection is an effective solution, sealing cracks and joints to create a watertight barrier. This article details a case study using this method to permanently fix basement leaks, offering a reliable approach for homeowners and contractors.

How to Fix a Leaky Basement

Water damage is a serious issue that can have devastating effects on your home. Not only does it decrease the value and livability of your property, but it can also compromise the structural integrity of your home. A leaky, damp basement is particularly concerning, as it creates a breeding ground for harmful mold and bacteria that can cause health issues for you and your family.

In addition, a damp basement can attract pests such as termites and rodents, causing further damage and infestations. It’s crucial to address any water damage in your basement as soon as possible to avoid these issues and prevent them from escalating. With the right tools and procedures, you can successfully mitigate basement leaks and protect your home from further damage.

Cracks and Cold Joints are Known Areas for Basement Leaks to Occur

Unsealed cracks and cold joints in your basement, or any below grade spaces, can be a major source of water damage, as they provide an easy pathway for water to enter your home. This can result in flooding, which not only damages your belongings but also compromises the structural integrity of your home. In addition to damaging walls, coverings, furniture, and storage items, water can also cause electrical hazards and increase the risk of fires.

Common Causes for Concrete Foundation Leaks and Wall Cracks

Concrete wall cracks, especially in basements, can be caused by a variety of factors that compromise the integrity of the structure and allow water intrusion. Here are some common causes:

Inadequate Construction
– Insufficient Material Quality: Using substandard materials or improper mixing ratios can weaken the concrete, making it more prone to cracking.
– Poor Waterproofing: In new homes, improper waterproofing techniques can lead to leaks and cracks.
Deteriorating and Stressed Concrete
– General Wear and Tear: Over years, concrete naturally deteriorates due to environmental factors, resulting in the formation of cracks.
– Thermal Expansion and Contraction: Exposure to repeated cycles of heating and cooling causes concrete to expand and contract, leading to cracks over time.
Soil Related Problems
– Low Compaction and Consolidation: Inadequately compacted soil beneath the foundation can shift, leading to structural instability.
– Erosion: Water erosion can wash away the soil supporting the foundation, causing it to settle unevenly and crack.
– Freeze/Thaw Cycles: Water in the soil can freeze and expand during cold weather, then thaw and contract in warmer conditions. This cycle exerts pressure on the foundation, causing it to crack.

How do I Stop my Basement from Leaking?

There are many methods to mitigate basement leaks. The construction of the basement and environmental factors have to be considered when choosing the right products and procedures, and it is always advised to consult a professional in the process.

One solution that has been successfully used for over thirty years is the SealBoss Leak Sealing Foam injection system. This system seals leaking basement cracks and cold joints by injecting a foam that expands to fill and seal the gaps, creating a watertight barrier. This method is effective, long-lasting, and cost-efficient, making it a popular choice for homeowners and contractors alike.

Leaky Basement Repair – Joint and Void Filling Injection

Scope

A homeowner faced persistent basement leakage through cold joints where the wall meets the floor.

Previous repair attempts by a contractor using crystalline products and epoxy coatings had failed, resulting in water pooling on the floor after heavy rains.

In search of a permanent solution, the homeowner sought to prevent further water intrusion into the basement.

Leaky Basement Repair – Detail

A SealBoss technical representative was called to provide expertise on sealing the basement leaks.

Upon careful examination of the job site, it was discovered that the basement floor was approximately 8 inches thick and was poured slightly deeper towards the walls. The source of the leakage was identified as the cold joint between the wall and the poured slab.

Repair System

SealBoss 1510 Water Stop Foam was chosen as the preferred leak sealing injection product to provide a permanent solution. The product would be injected through SealBoss injection packers using the SealBoss P2002 injection machine, a compact, lightweight, and quiet pump ideal for this application.

Procedure

1. Drilling the Slab

The slab was drilled with half-inch holes spaced one foot apart, parallel to the wall, and ten inches from the wall.
The holes were drilled at a 90-degree angle and full depth into the slab.
After drilling each hole, the presence of heavy substrate saturation along the wall was confirmed by water filling the hole, indicating a void beneath the slab that needed to be filled with foam during the injection process.

2. Setting the Packers

- Once all the holes were drilled, packers were placed at half depth and only hand-tightened for easy removal during injection.

- The injection process began on the side closest to the crawl space’s stub foundation wall.
- The first packer was loosened, placed at full depth, and retightened, while the next packer in line was removed to allow for a path of less resistance for any displaced water or soil to escape from below and provided visibility for material travel.

3. Injection Process:

- Each packer was injected until catalyzed foam was observed coming out of the adjacent hole.
- The packer was reinjected a second or third time until refusal or sufficient pressure buildup.

Leaky Basement Repair – Conclusion

This combined joint injection and void filling injection procedure proved to be the most effective method for sealing the basement leaks

efficiently and permanently. The use of SealBoss 1510 Water Stop Foam, along with precise drilling and injection techniques, ensured that the cold joints and voids were thoroughly sealed, providing a lasting solution to prevent water intrusion.

Additional Tips for Homeowners and Contractors

Regular Inspection:
Periodically inspect basements, especially after heavy rains, to detect early signs of leakage.
Proper Drainage:
Ensure proper exterior drainage systems, such as gutters and downspouts, are in place to divert water away from the foundation.
Professional Consultation:
Consult with experienced professionals for thorough assessments and tailored solutions for basement waterproofing.

By following these steps and employing advanced sealing techniques, homeowners and contractors can effectively address and prevent basement leakage, ensuring a dry and secure living space.

Check out our Leaky Basement Repair Kits

Materials and Tools Used

Leaky Basement Repair Related Articles

Learn More

Feel free to contact us at 714-662-4445 if you have any inquiries, or simply fill out our request form for us to get back to you. Our team is eager to assist you in finding the right solution for your needs. In addition, we offer on-site support from our expert and experienced technical representatives, which can be arranged upon request.

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Polymer Pump for Acrylate Gel Injection

Introducing the New and Enhanced SealBoss® IP2C Generation 2 Gel Injection Pump

A true pioneer in the next generation of acrylate gel injection technology. Crafted with meticulous attention to detail and a relentless commitment to innovation, longevity, and relentless functionality this professional polymer pump sets unprecedented standards in quality, performance, design, and ease of ownership, making it a leader in its class.

The SealBoss® IP2C Gen 2 polymer pump is the epitome of modern engineering excellence, featuring a robust stainless steel pump body construction designed for unmatched durability, precision, and exceptional protection against corrosion. This pump comes equipped with a dedicated water flush pump and is designed for use with acrylate gel injection products.

This polymer pump is not just a tool but a cornerstone of efficient construction and repair work, offering reliability that professionals in the field can trust.

Optimal Compatibility and Use

The SealBoss® IP2C Gen 2 polymer pump is designed to work seamlessly with quality acrylate injection resins and a variety of buttonhead packers, which enhances its compatibility and utility across numerous applications.

We recommend pairing this polymer pump with our SealBoss Super Flexible Acrylate Gels and SealBoss Buttonhead Injection Packers to achieve the best results and performance.

Environmentally Friendly Cleaning with Water when used with Acrylate Injection Gels

Maintaining this polymer pump is straightforward and efficient. For short breaks in the injection process, the mixing head can be flushed using water via the dedicated flush pump, which includes a separate suction tube and flush pressure line. Users can easily switch the applicator handle to flush mode for this purpose.

After completing your injection tasks, it is crucial to perform a thorough cleaning of the entire polymer pump system. Simply place the suction hoses into a tank filled with flushing agent and operate the pump at a lower pressure setting. This cleaning regimen ensures that every component of the polymer pump is free from contaminants and ready for its next use, maintaining the system in optimal condition.

Comprehensive Package and Features

This comprehensive system includes a triple set of 15-foot high-pressure hoses coupled with an equally robust set of suction hoses, ensuring extensive reach and flexibility in various working environments. Each polymer pump component operates independently—two dedicated product component pumps and an independent water pump—culminating in a high-performance mixing head housed within the heavy-duty applicator. This setup ensures precise mixing and application, with a disposable plastic element static mixer that epitomizes ease of use and efficiency.

To prevent any possibility of cross-contamination between components, the polymer pump is equipped with sophisticated built-in check valves. An integrated high-pressure flush pump allows for straightforward cleaning of the mixing chamber through a separate flush line, ensuring that the system remains pristine even when work is momentarily paused.

Advantages of Using SealBoss® IP2C Gen 2 Polymer Pump

Enhanced Durability and Corrosion Resistance
The stainless steel pump units construction ensures longevity and resistance to corrosion.
High-Performance Mixing and Application
The independent pumping system and state-of-the-art mixing head deliver precise and consistent applications every time.
Ease of Maintenance
With integrated flushing systems and easy-to-follow procedures, maintaining this polymer pump is hassle-free.
Versatility
Suitable for a wide range of environments and applications, from simple repairs to complex construction projects.
Cost-Effectiveness
Minimize waste and maximize efficiency with precise application and reduced need for frequent repairs or replacements.

In Conclusion

The SealBoss® IP2C Gen 2 Gel Injection Polymer Pump is more than just a piece of equipment; it is a vital ally in the construction and repair industries, designed to meet the highest standards and tackle the toughest challenges. Whether you’re sealing foundations, repairing concrete, or handling intricate waterproofing projects, this polymer pump promises performance that professionals can depend on. Embrace the future of construction and repair with SealBoss® IP2C Gen 2, the ultimate polymer pump for your acrylate gel injection needs.

SealBoss 2400 Gel Injection System

Links to Leak Sealing with SealBoss Acrylate/Acrylic Super Low Injection System

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Hydrophobic versus Hydrophilic Polyurethanes

Hydrophobic vs Hydrophilic Polyurethanes

Injection Foams, Resins and Gels

Introduction

Dive into the technical distinctions between hydrophobic and hydrophilic polyurethanes. These two types of polyurethane chemical injection grouts exhibit unique behaviors with water—hydrophobic resins repel water, whereas hydrophilic resins absorb it. This key difference informs their use in various concrete repair and sealing applications. Our guide provides a straightforward comparison to help you select the appropriate material based on the specific requirements of your project.

Hydrophobic versus Hydrophilic Polyurethanes and Acrylic Chemical Grouts Explained

Polyurethane chemical injection grouts can be broadly categorized into two types: hydrophobic and hydrophilic.

The primary distinction between hydrophobic and hydrophilic polyurethane resins designed for injection lies in their interaction with water. Hydrophobic injection resins repel most of the water, whereas hydrophilic injection resins absorb it during their reaction.

Both hydrophobic and hydrophilic injection resins, despite their varied reactions to water, can be highly effective for sealing and repairing gaps, cavities, and leaks in concrete structures. However, choosing one over the other is not arbitrary, it largely depends on the specifics of the application and the nature of the issue that needs addressing.

Thus, by understanding the distinct properties of each material, one can determine the best fit for a given situation and application.

Hydrophobic Polyurethanes

The term “hydrophobic” comes from the Greek words “hydro” meaning water and “phobia” meaning fear, resulting in a material that repels water. In the case of hydrophobic grouts, they have little tendency to absorb water into their structure.

Hydrophobic, water-activated polyurethane foams , also known as water blown polyurethanes, need just a tiny amount of water to set off the reaction, leading to polymerization and expansion. During the process of polymerization, a small proportion of water interacts with the polyurethane resin, which produces carbon dioxide gas. This gas expands the foam, leading to the creation of a compression seal in a confined space. Any surplus water is forced out during this process.

After curing, hydrophobic foam grouts maintain their shape, size, and volume without being affected by dry cycles within the substrate. Hydrophobic grouts, once cured, produce a foam of varying rigidity and flexibility. Their high foaming property allows for significant expansion in volume, filling large voids with minimal material. This expansion can reach up to 40 times the initial volume.

Single Component Hydrophobic Water Stop Foams
Water stop and leak-sealing foam grouts are usually available as a single component material, along with an accelerator that can regulate expansion rates, induction, and cure times. These hydroactive hydrophobic foams share similar characteristics. The reaction is initiated only by water or moisture, but once cured, the product remains unaffected by moisture and maintains a constant volume. Since water is not part of the foam structure, the cured material is not affected by water or dryness and does not shrink or swell. These products are also not affected by freeze/thaw and wet/dry cycles.

Characteristics
Cured Product: Rigid, Semi-Rigid, Flexible Foam
Reactive Mechanism: Requires Moisture / Water
Accelerator Adjusted: Yes
Elongation Properties: Up to 250%
Wet/Dry Cycles: Essentially Not Affected
Adhesive Bond to Substrate: Good
Application Equipment: Single Component

– SealBoss 1510
– SealBoss 1570
– SealBoss 1570LV
– SealBoss 1500
Dual Component Hydrophobic Fill and Lift Foams
Dual component foam grouts offering higher structural strength, very short reaction time, and good rigidity are available for void filling and slab lifting applications. These are polyurethanes that do not require any external water to react, but will react in dry and wet environments.

Characteristics
Cured Product: Rigid Foam
Reactive Mechanism: No external Water required
Accelerator Adjusted: No
Elongation Properties: Rigid
Wet/Dry Cycles: Essentially Not Affected
Adhesive Bond to Substrate: Good
Application Equipment: Two Component, Plural Component

– SealBoss 1640 / 1620
Dual Component Hydrophobic Super Low Viscosity Resin
The dual-component injection resin cures into a non-cellular and flexible product. It has excellent penetration properties in fine and hairline cracks and has an adjustable reaction time. Unlike some other resins, this two-component polyurethane resin does not require external water to initiate the reaction. It can react in both dry and wet environments.

Characteristics
Cured Product: Non-cellular flexible Leak Sealant
Reactive Mechanism: No external Water required
Accelerator Adjusted: 1400 Catalyst
Elongation Properties: 100%
Wet/Dry Cycles: Essentially Not Affected
Adhesive Bond to Substrate: Good
Application Equipment: Single Component, Two Component

– SealBoss 1403 SLV

Hydrophilic Polyurethanes and Acrylics (Acrylates)

The term “hydrophilic” comes from the Greek words “hydro” meaning water and “philia” meaning love, referring to a material that readily absorbs water into its structure and can form gels. Hydrophilic grouts absorb water molecules during the reaction and polymerization, resulting in a highly flexible product.

These grouts can accommodate movement during expansion and contraction cycles. While hydrophilic grouts may dehydrate and shrink to some extent based on the amount of water absorbed, in most applications and environments, the surrounding concrete or soil’s moisture content and humidity are typically high enough to keep shrinkage to a minimum. Hydrophilic resins can achieve excellent bonding with wet concrete as they penetrate deeply into the pores and hairline cracks.

Single Component Hydrophilic Foam /Gel
Water initiates reaction and either forms a foam or gel based on water absorption. The product is capable of absorbing and incorporating water post cure, thereby swelling and forming a waterproofing flexible gel or foam.

Does FlexGel Hydrophilic Resin Shrink in the Absence of Water when used for Crack Injection?
When used as a single component injection grout, and without water mixed into the product prior to crack injection, FlexgGel will reject excess water similar to a hydrophobic polyurethane foam grout – resulting in a cured product of low water content. FlexGel Injection Rubber product will perform in line with the hydrophobic grouts. Please refer to data sheet for details.
Characteristics
Cured Product: Foam or Non-cellular flexible Gel
Reactive Mechanism: Requires Moisture / Water
Accelerator Adjusted: No
Elongation Properties: 100% to 1000% (Foam or Gel reaction)
Wet/Dry Cycles: Water loss and contraction in dry cycles — based on initial water content
Adhesive Bond to Substrate: Excellent
Application Equipment: Single Component, Two Component
– SealBoss FlexGel
Plural Component Hydrophilic Acrylic / Acrylate Gel
Multi component product where water is incorporated in large amounts to form a highly flexible gel. Super low viscosity, poly acrylate gel with accelerator. The product offers outstanding penetration properties similar to plain water. Used for Tunnels, Mining, Curtain Injection.

Characteristics
Cured Product: Flexible Gel
Reactive Mechanism: Water added to mixture
Accelerator Adjusted: Yes
Elongation Properties: 250%
Wet/Dry Cycles: Water loss and contraction in dry cycles
Adhesive Bond to Substrate: Very good
Application Equipment: Multi Component, Plural Component Gel Pump
– SealBoss 240 SLV SealGel Acrylate

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Learn More
We encourage you to contact us at 714-662-4445 if you have any queries or require assistance. Alternatively, you can request to be contacted through our website. Our team of knowledgeable and experienced technical representatives can provide on-site support upon request, and we are dedicated to helping you find the best solution.

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Leaking Crack Repair

Coached by a Top Industry Professional

In the world of construction and maintenance, “leaking crack repair” is a term that frequently emerges, particularly when addressing structures that contain water or are vulnerable to moisture and water intrusion. Addressing these cracks swiftly and efficiently is vital for the structure’s safety and durability.

Sealing the Future – Preserving the Past
Since 1988

Leaking Crack Repair

Sealing the Future – Preserving the Past
Since 1988

The Need for Crack Injection Training

A prominent general contractor, who usually subcontracts such tasks, expressed the need for immediate crack injection training on a specific jobsite. Their primary aim was to acquire the expertise for smaller projects, allowing them to handle leaking crack repair internally on certain timely projects. This proactive approach not only saves time but also ensures that minor issues can be addressed before they escalate.

A Case Study: Water Treatment Tank Crack Sealed

Scope: New Concrete Tank – Water Test Failure – Asses and Seal

The facilities in question comprised three holding cells, separated by two poured-in-place division walls. During a leak test on the outer two tanks, visible cracks were detected. These cracks, deemed non-structural for repair purposes, showed signs of dampness and minor leaks, emphasizing the need for immediate leaking crack repair. Pressure crack injection with a hydrophobic polyurethane expanding water stop foam utilizing an electric injection pump and mechanical injection packers was specified as the method of restoration.

The Repair Process

Materials Used: SealBoss 1570, SealBoss 15x
Additional Tools: SealBoss 13-60S packers, SealBoss 495 Injection Pump, Hammer Drill w/ 12” x ½” bit, PPE

For training purposes, a weeping crack was chosen for repair. This crack, though narrow, spanned about 10 feet in height and meandered across the wall. Given that the newly constructed wall was 14 inches thick, the repair strategy involved guiding the team to drill 5 to 7 inches out from the crack. The drilling was done at a 45-degree angle, aiming back towards the crack, employing the crack stitch method.

Depth of Intersection: The further the drill hole is from the crack, the deeper it will intersect the crack within the structure. This results in a more profound point of injection.

Considerations for Thicker Structures: A deeper injection point is often preferred in thicker structures. However, the length and reach of the drill bit play a crucial role in determining the optimal distance for the drill hole.

Avoiding Dead-End Drill Holes: A drill hole that misses the crack won’t facilitate the injection of the chemical grout into the structure. Such holes are termed “dead-end drill holes” and are ineffective for the purpose of grout injection.

In summary, while determining the spacing of drill holes, it is vital to balance the desired depth of injection with the capabilities of your drilling equipment to ensure effective grout injection.

To ensure precision, the placement was set parallel to the fissure. A 0.5-inch masonry bit, attached to a hammer drill, was used for the drilling process. Once the clean, crack-intersecting holes were established, SealBoss 13-60S heavy duty steel injection packers were installed.

The repair commenced from the bottom, progressing upwards. The SealBoss 495 injection pump, paired with the SealBoss 1570 NSF/ANSI/CAN 61 drinking water contact certified chemical grout, was used for the leaking crack repair. As the repair proceeded, water and material were observed exiting the substrate. This was a positive sign, indicating effective penetration and successful stopping of the water penetration and sealing of the crack.

Final Thoughts

Leaking crack repair is an essential aspect of maintaining the structural integrity of buildings and facilities. With the right knowledge, tools, and materials, such as those provided by SealBoss Corp., even the most challenging cracks can be effectively addressed. Whether you’re a contractor looking to expand your skill set or a facility manager aiming to maintain your structures, understanding the nuances of leaking crack repair is invaluable. Our SealBoss Water Stop Specialists are always ready to assist you.

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