SealBoss News / Blog

Basement Crack Repair

Basement Crack Repair - Injection Techniques

Introduction:

Maintaining the integrity of your home’s foundation is crucial, especially when dealing with basement wall, floor, and foundation cracks. These issues, if neglected, can escalate into major structural and moisture-related problems. This guide offers a concise overview of effective basement crack repair methods, including the use of polyurethane foam for waterproofing and epoxy resin for structural reinforcement.

Understanding how to properly address these cracks is key to preserving your home’s stability and value, ensuring a safe and dry basement environment. Through exploring various repair techniques, homeowners can find the most suitable approach to protect their foundation and extend the lifespan of their property.

Basement Wall, Floor, and Foundation Crack Repair

A Guide to Basement Crack Repair: Preserving the Integrity of Your Home’s Foundation

Your home’s basement is more than just a storage space; it is the solid base that holds your house together, literally. Consequently, it is critical to keep it in peak condition.

Over time, however, the basement might start showing signs of wear and tear, such as basement cracks. These fissures can be attributed to various factors, including drying shrinkage, thermal movement, shifting foundations, and foundation settling. Errors in the concrete mixing and application processes during construction can also contribute to the problem.

These basement cracks, seemingly harmless at the onset, can progressively multiply and widen. This deterioration can then lead to water seepage, causing a damp environment conducive to mold growth. This can also lead to a musty smell and even a significant compromise to the structural integrity of your home. The implications of these issues extend to the quality of living in the home and its market value. Therefore, maintaining a stable and dry basement environment, synonymous with a sound foundation, is of utmost importance.

Despite basement cracks being a relatively common occurrence, it is not advisable to ignore them. Homeowners should make it a habit to inspect the foundation wall and floor in their basement for any concrete cracks. Any identified issues should be promptly addressed to prevent further deterioration.

Approaches to Basement Crack Repair

There is a multitude of approaches to tackling basement crack repair. The method most appropriate is determined by the extent of the damage and the unique environmental conditions of the space.

Utilizing polymer resins and foams for injection constitutes an efficient and economical approach to mitigate basement leaks and restore structural integrity to basement walls and foundations.

Depending on the chosen products, these methodologies provide not only a pragmatic resolution to leakage problems but can also significantly enhance the durability and structural stability of the existing infrastructure. It is vital to discern between dry and wet basement cracks and understand their structural implications.

Resolving Water Intrusion with Polyurethane Foam Basement Crack Injection

Water intrusion through basement cracks can cause significant damage, leading to problems like mold growth and property depreciation. The introduction of basement crack injection with polyurethane foam has revolutionized the way these issues are addressed. Polyurethane foam expands upon contact with moisture, making it an excellent solution for sealing cracks and preventing water ingress. The foam fills the entire crack and forms an impermeable barrier against further water intrusion. This injection process is carried out from inside the structure, reducing the need for extensive excavation and offering a cost-effective, efficient solution for water intrusion concerns.
Strengthening Structures with Epoxy Resin Basement Crack Injection

For structural repair in basements, the crack injection process utilises epoxy resin, known for its high strength and durability. The injected epoxy hardens within the crack to form a rigid seal of high compressive and tensile strength, effectively restoring the structural strength of the cracked concrete. This process results in a permanent repair, reinforcing the structure and enhancing its longevity. By employing basement crack injection with epoxy resin, homeowners can ensure the maintenance of structural integrity, enhancing the safety and value of their properties.

The location of basement cracks often determines the extent of water permeation they may cause. In numerous scenarios, the primary goal is to establish a barrier against such seepage, necessitating the sealing of these cracks with polyurethane based products rather than enhancing their structural strength.

Conversely, there are situations where the restoration of structural stability of the wall or foundation becomes the primary objective. In these instances, epoxy resins emerge as the preferred choice due to their superior strength and bonding properties.

To understand this distinction more comprehensively, we recommend reviewing the Epoxy/Polyurethane Comparison article, which provides an in-depth analysis of the differential uses and benefits of these two material groups in basement crack repair.

Injection from the Inside – No Digging Required

A prevalent and convenient method of sealing cracks in concrete and concrete/cinder block basement walls is by injecting them from the inside. This repair process typically involves injecting polyurethane or epoxy crack materials into the cracks, offering a robust solution to water seepage and structural issues.

Concrete Structures

For cracks in poured concrete foundation walls, a monolithic and solid structure, a direct injection of chemical polyurethane grout or epoxy resin is the method of choice. The polymers fill the cracks and voids, and seal the structure in the process.

Poured Concrete versus Block Walls

Basement crack repair for concrete/cinder block foundation walls can present a different set of challenges. These walls, unlike poured concrete structures, are not monolithic. They are porous and constructed from numerous pieces held together with mortar, creating an abundance of cold joints, a convenient route for water penetration.

A cold joint is defined as the surface where an existing substrate and a fresh substrate, in this case, mortar, form a non-monolithic gap with no or very low bond strength. Due to these characteristics, block walls are usually more challenging to seal by direct injection. These often necessitate more extensive methods like curtain or bladder injection — moving chemical grout behind the structure from an inside injection grid pattern — to ensure water tightness.

Thankfully, in many situations — and more easily with poured concrete walls than block walls, for the reasons explained above — basement wall cracking can be remedied with basement crack repair kits. It is always recommended to get advise from a professional and licensed contractor prior to deciding on a crack repair strategy and a specific basement crack repair system.

To aid in your research, we’ve included links to some highly-rated basement crack repair kits, offering practical solutions for sealing basement wall and floor cracks. These resources, alongside additional crack repair-related information, will help you make an informed buying decision.

In conclusion, it is important to take basement cracks seriously, no matter how small or insignificant they might seem. While the task may seem daunting at first, remember that there are resources available to help. From basement crack repair kits for smaller tasks to professional contractors for larger projects, you have options. Therefore, do not neglect your basement; give it the care it needs, and it will support and protect your home for many years to come.

Addressing Basement Crack Repair – Reach Out to Us at 714-662-4445

Take note, the phenomenon of broadening cracks in basement walls and floors, which may result from persistent foundation settling or sinking, can often be corrected using chemical grout injection techniques associated with crack injection. This includes procedures such as under slab void filling and polyjacking methods.

Basement Crack Repair Information

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Utility Vault Leak Sealing Repair

Injection Technology for Utility Vault Repair and Maintenance

Introduction:

Utility vaults, integral components of modern infrastructure, house essential services like electrical and telecommunications equipment. Despite their robust construction, they are prone to leaks, especially at precast joints and pipe penetrations. Neglecting these leaks can lead to operational, safety, and financial challenges. This comprehensive guide delves into the intricacies of utility vault leak sealing repair, emphasizing the application of polyurethane grout for long-lasting solutions.

Advantages of Polymer Grout Injection for Utility Vault Leak Sealing Repair

Polyurethane grouts stand out for their material longevity and flexibility after curing, accommodating structural shifts and reducing the likelihood of cracks. Economically, it requires fewer reapplications and offers reduced labor costs, making it a cost-effective choice in the long run. Environmentally, SealBoss’s NSF-certified polyurethane grouts meet stringent public health and safety standards, ensuring minimal impact on the environment.

Acrylate / acrylic gel injection resins offer extreme penetration properties and super low viscosity and are used for permeation and curtain injection while providing a sealing membrane in blow grade structures between the concrete and surrounding soil.

Utility Vault Leak Sealing Repair

Ensuring Structural Integrity and Operational Efficiency

The Consequences of Ignoring Leaks

Unaddressed leaks in utility vaults can lead to equipment corrosion, failure, or increased maintenance needs, affecting the reliability of utility services. Moreover, water in electrical vaults creates a hazardous environment, increasing the risk of electrical short circuits and posing a safety threat to maintenance staff.

The Solution: Polymer Grout

Polyurethane grout, with various physical properties and reaction profiles, including hydrophobic and hydrophilic formulations, offer highly specialized solutions and a professional approach to sealing leaks in utility vaults permanently. On large and damp concrete walls of damp acrylate / acrylic gel injection may be the application method of choice.

Polymer grout injection most often outperforms traditional methods like cementitious grouting by accommodating structural movements, active high velocity water flow, and preventing leak reoccurrence.

Sealing General Leaks and Leaking Cracks

Leaks can occur due to a variety of reasons including poor construction, soil movement, and aging materials. Cracks in the walls or floor of the vault can develop over time, leading to water ingress.

Crack Injection Method

Crack injection is a precise technique used to address leaking cracks. This method involves injecting a sealing material, typically a polyurethane (or sometimes epoxy resin), into the cracks to create a waterproof barrier.

For the Comprehensive SealBoss Crack Injection Guideline click here.

Steps for Crack Injection:

Identifying and Cleaning the Crack: The first step is to thoroughly inspect the utility vault and identify all the cracks. These cracks need to be cleaned to remove any debris or contaminants.
Installing Injection Ports: Small injection ports are then installed along the crack at regular intervals. These ports will serve as entry points for the injection material.
Injecting the Resin: The selected resin is then injected into the ports, starting from the lowest port and moving upwards. The resin fills the crack completely, creating a waterproof barrier.
Curing and Finishing: Once the injection is complete, the resin is allowed to cure. After curing, the injection ports are removed, and the surface is finished as required.

Sealing Damp Walls with Curtain Injection Technique

Damp wall and water seepage with very fine cracks or no visible cracks. This issue is typically due to water seeping through the walls, which can be a result of groundwater pressure, capillary action and porous substrate.

Curtain injection is an effective method for addressing general leaks and damp walls. It involves creating a waterproof barrier behind or around the leaking area. Curtain injection is performed with SealBoss polyurethane grouts or SealBoss 2400 acrylate/acrylic gel resin.

Read more on the Curtain Injection Technique – click here.

Steps for Curtain Injection

Assessment of the Leaking Area: A thorough assessment is conducted to determine the extent and source of the leaks or dampness.
Drilling Injection Holes in Grid Pattern: Holes are drilled into the wall or ceiling at strategic locations to cover the area affected by the leaks or dampness.
Injecting the Grout: A low-viscosity polyurethane grout is injected into these holes. The grout travels through the voids and cracks behind the wall or ceiling, forming a curtain-like barrier.
Creating the Waterproof Barrier: The grout permeates and creates a curtain or bladder, sealing off the water paths and creating a waterproof barrier.
Curing and Inspection: After the injection, the grout is given time to cure. A final inspection is conducted to ensure the effectiveness of the barrier. Curtain injection can often be tested by flooding the area behind the structure.

The Water Migration Problem of Precast Joints and Pipe Penetrations

Precast joints in utility vaults, formed at the junctions between concrete sections, are susceptible to leaks due to cracks, soil shifts or temperature fluctuation caused movement.

Similarly, pipe and conduit penetrations, where utility lines enter the vault, can become leak points. The original sealing around these areas can degrade over time, allowing water to infiltrate the vault.

Repairing Precast Joint Leaks

For precast joint leaks, products like SealBoss 1510 and SealBoss 1570, combined with SealBoss Oakum, offer effective solutions. SealBoss 1570 is a highly flexible polyurethane grout that adapts to movements between concrete sections, while SealBoss Oakum, a special oil-free dry jute rope, helps to seal large and irregular defects when used in combination with the grout.

Installation Guideline

Clean and moisten surfaces before applying Oakum
Saturate SealBoss Oakum with SealBoss Polyurethane Resin
Pack the Oakum into the precast joint and, if necessary, inject additional resin for a complete seal.
Allow the material to cure overnight

Addressing Pipe Penetration Leaks

For pipe penetration leaks, a combination of SealBoss Polyurethane grout and SealBoss Oakum can create a durable seal. Soaking SealBoss Oakum in the grout and then packing it around the pipe forms a tightly sealed gasket.

Installation Guideline

Soak SealBoss Oakum in SealBoss Polyurethane Grout and water
Pack the soaked Oakum around the pipe
Use a SealBoss Injection Needle to fill any remaining gaps with chemical grout

This method offers longevity, with the potential to last up to five decades.

Selecting a Qualified Contractor

The effectiveness of the repair largely depends on the skill of the contractor. It is crucial to choose a contractor experienced in applying polymer grout. Look for contractors who have received training from the material manufacturer and have a proven track record in polymer water stop injection and leak sealing projects.

Evaluating Proposals

When reviewing proposals, focus on the detailed scope of work, proposed materials, cost breakdown, project timeline, and references. This due diligence ensures that your investment in utility vault leak sealing is well-placed.

Conclusion

Utility vault leak sealing repair, particularly with polymer grouts and resins, is an essential aspect of maintaining infrastructure integrity. Choosing the right contractor and using quality products like those offered by SealBoss can ensure the longevity and effectiveness of the repairs. By addressing these leaks proactively, you can mitigate operational challenges, ensure safety, and avoid negative economic impacts.

Related Links

Structural Utility Vault Repairs

Structural Epoxy Repair System

Utility Vault Leak Seal Grouts

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Parking Garage Waterproofing

Injection Technology for Parking Garage Infrastructure Maintenance

Introduction:

Below-grade parking garages and above-grade garages are vital components in urban infrastructures, particularly in densely populated areas where surface parking is scarce. These garages provide a crucial solution for parking needs but are inherently prone to water leaks, leading to serious structural integrity issues.

Commercial parking garages, whether situated above or below ground, face a significant risk of water damage. The primary construction material, concrete, is naturally prone to developing shrinkage and stress cracks over time. Additionally, concrete’s porous nature, combined with the existence of construction and cold joints, creates potential pathways for water to penetrate. This infiltration of water can trigger various issues, notably the weakening of the concrete structure and the corrosion of embedded steel reinforcement bars (rebar).

Such deterioration not only compromises the structural integrity of the garage but also leads to escalated maintenance needs and potential safety hazards.

The consequences of such leaks and deterioration extend beyond mere inconvenience, posing safety risks, incurring costly repairs, and diminishing property values.

This article outlines common challenges of waterproofing these above-grade and subterranean structures, outlining the detrimental effects of water on concrete, strategies for early detection of structural compromises, and both immediate and long-term actions for maintaining the structural integrity and safety of these essential facilities.

Polymer Grout Injection Water Stop: The Final Line of Defense

Polyurethane grout injection plays a crucial role in parking garage waterproofing, especially in areas prone to leaks. This material provides a robust solution for sealing and protecting against water infiltration. When integrated into maintenance plans, it acts as a formidable barrier against moisture-related damages.

Polymer polyurethane and acrylate grouting include multiple repair techniques such as:

Crack Injection
Joint Injection
Conduit & Pipe Penetration Sealing
Curtain Wall Grouting
Soil permeation, compaction, consolidation, and stabilization grouting

Polymer Grout for Parking Structure Waterproofing

The Detrimental Effects of Water on Concrete Structures

Water migration in concrete parking garages can lead to corrosion, compromising the structural strength of the concrete, increasing the likelihood of further cracking, spalling, and in severe cases, complete structural failure. These issues not only present significant safety hazards but also accelerate the need for increasingly extensive repairs.

Recognizing the Signs of Structural Compromise

Early detection of water-related damage is critical for the longevity of parking structures. Key indicators include cracking, spalling, efflorescence (a greyish white, powdery substance indicating water movement within concrete), and rust stains on concrete surfaces. These signs point to potential rebar corrosion and overall weakening of the concrete structure.

Immediate and Long-Term Waterproofing Actions

Effective waterproofing requires both immediate interventions and long-term strategies.

Immediate actions often include sealing leaks with polyurethane polymer grout or acrylate grout injection and allowing for additional drainage to prevent water accumulation.

Long-term measures involve regular structural inspections and the development of comprehensive maintenance plans, encompassing routine cleaning of drains and re-application of waterproofing materials.

Protecting Investment and Public Safety

The integrity of below-grade parking garages is crucial for the safety of its users and the preservation of asset value. Stakeholders need to understand the impacts of water damage and adopt proactive strategies to mitigate risks. This approach helps extend the lifespan of parking structures, reduces maintenance costs, and ensures a safe, functional environment for users.

Maintenance of Drainage Systems

Effective drainage is paramount in preserving the structural integrity of parking garages. Poor drainage can lead to water ponding, increasing slip-and-fall risks, and accelerating concrete deterioration. Maintaining an efficient drainage system is thus essential for avoiding frequent and costly repairs.

Contractors tasked with improving drainage should focus on optimizing the existing system. This involves evaluating the system’s effectiveness, cleaning drains, removing debris, and recommending a schedule for regular inspections and ongoing maintenance.

While improving drainage systems may require an upfront investment, the long-term benefits, including reduced maintenance costs, structural preservation, minimized safety risks, and enhanced operational efficiency, are substantial.

Combating Corrosion

Water migration of any source, including groundwater, rain water and sprinkler runoff, and environmental factors like minerals and vehicle emissions can significantly corrode concrete and metal components. Polymer grout injection, when correctly applied, effectively seals against these elements, prolonging the garage’s structural integrity.

Cost Considerations and Long-Term Value

Investing in polymer grout application, including hydro-active foam, polymer gels and resins, is cost-effective in the long run, offering benefits such as reduced repair costs, extended lifespan of the garage, enhanced safety, and increased property value.

Complementing Polymer Grout Technology with Other Preventative Measures

A comprehensive corrosion prevention strategy can include additional measures like proper ventilation, regular cleaning, and the application of specialized coatings and sealants, alongside polyurethane grout injection methods.

Regular inspections and proactive maintenance are key to sustained effectiveness in corrosion prevention. Any signs of new corrosion should be promptly addressed to maintain the structure’s integrity.

The Importance of a Comprehensive Corrosion Prevention Strategy

A holistic approach to combating environmental corrosion is essential for the long-term success of waterproofing efforts. This strategy should encompass quality application of polyurethane grout and integration into a broader corrosion prevention plan.

Sealing of Gaps and Spaces Around Electrical Conduits and Pipes

Moisture poses significant risks to electrical systems within parking garages, potentially leading to hazards such as short circuits and electrical fires. Ensuring electrical safety requires a multifaceted approach that can combine polyurethane grout application with other comprehensive safety measures. This strategy is vital for reducing the risks associated with water infiltration.

Polyurethane grout is instrumental in mitigating these risks by effectively sealing areas around electrical installations and sealing of leaking conduits and the sealing of other openings in the structure such as annular spaces and gaps around drainage pipes.

The initial investment in polyurethane grout application for electrical safety and the sealing of conduit and pipe penetrations pays off in the form of reduced maintenance costs, enhanced safety, and operational continuity. Electrical, conduit, and pipe penetration safety in parking garages should include regular inspections and maintenance.

Conclusion

Waterproofing below-grade parking garages is a critical aspect of urban infrastructure maintenance. By understanding the challenges, recognizing the signs of damage, and implementing both immediate and long-term waterproofing strategies, owners and stakeholders can protect their investments, ensure public safety, and maintain the structural integrity of these essential facilities.

Regular maintenance, combined with the strategic use of preventative and repair materials like polyurethane grout, forms the cornerstone of effective waterproofing and corrosion prevention.

For specialized solutions, consulting with the waterproofing experts at SealBoss Corp. is recommended to ensure that your parking garage remains safe, functional, and valuable for years to come.

Related Links

Structural Parking Garage Repairs

Structural Epoxy Injection System

Parking Garage Waterproofing Grouts

Click Here

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Water Treatment Plant – Crack Leak Sealing Repair

Water Treatment Plant Leak Sealing Repair

Play Video about sealboss water stop foam - nsf cerified leak sealer water treatment plant

NSF Drinking Water Certified Water Stop Foam - P2002 Pro-Kit

Rush Delivery and On the Job Training

This newer water treatment plant has the capacity to meet the needs of the growing city’s population and industrial demands. It utilizes state-of-the-art technology to reduce seasonal taste and odor issues, treats for sulfates from Devils Lake discharges, and meets regulatory requirements related to pharmaceuticals, pesticides and herbicides. Located in a harsh climate, the Treatment Plant is an all indoor facility with multiple basins for the various processes of treatment.

A SealBoss Technical made a rush delivery of a P2002 Pro-Kit and NSF Drinking Water Contact Certified SealBoss Water Stop Foam to the North Dakota Water Treatment Plant where previous attempts to mitigate various leaks through concrete cracks had failed. SealBoss provided intensive on the job crack injection training for the in-house maintenance and repair team to provide them with product and application knowledge to be able to inject and leak-seal any cracks within the facility successfully.

The chlorine basin had developed cracks and water with minimal solids had been leaking from the bottom of the basin on to the pumps and other mechanical components. Previously, the leaking cracks had been unsuccessfully addressed by a contractor with a undisclosed product and were found to be covered with an epoxy paste.

Prior to injection with SealBoss hydro active hydrophobic polyurethane foam the face of the concrete needed to be cleaned and stripped back to bare concrete. Some leaking areas had previously been injected by drilling directly into the crack (which is not a recommended procedure for this type of application) and were left unfinished with some ports or parts thereof still in place. The old remaining ports needed to be removed and the old drill holes were quickly and temporarily plugged with SealBoss 3/8” Hammer-in ports.

Once this was accomplished, new injection holes were drilled following the SealBoss 1, 2, 3, 45-Degree Injection Guidelines and starting roughly 6” from the center of the crack and placing packers in a staggered fashion. Under the job site conditions the SealBoss 45-Degree packer installation technique provided for much better product penetration and travel within the cracks and hairline fissures. Once all the holes were drilled the SealBoss Evolution 13-100AL aluminum packers were placed and the overhead injection began.

SealBoss NSF/ANSI 61 certified 1510 Water Stop Foam chemical grout is approved by the supervising engineering firm for the crack and leak-seal repair on this project. The product was injected with the SealBoss P2002 high pressure single component injection pump system.

Within a short time the low viscosity SealBoss 1510 Foam was traveling through the cracks and began reacting. Refusal of the resin from the face of the crack was visible at distances far exceeding the next packer hole indicating very good penetration.

Utilizing the SealBoss 1, 2, 3, 45-Degree Injection Method with staggered packer placement, rather than drilling directly into the cracks, the low viscosity SealBoss 1510 chemical grout was able to travel much farther inside the cracks, hairline fissures and non-visible shrinkage cracks thus creating an immediate and permanent seal.

SealBoss provided intensive on-the-job crack injection training for the in-house maintenance and repair team and taught them all the product and application knowledge to be able to inject and leak-seal any cracks within the facility successfully.

fter several hours of on-site guidance, the facility’s repair team felt confident in devising a strategy to address the remaining cracks. They were also well-acquainted with the systems for anticipated future leak repairs.

Case Study, pdf — Click Here

"When called for on-site support and training, our goal is to foster a positive learning atmosphere. We aim to instill confidence and familiarity swiftly, ensuring seamless repairs long after my training concludes.

Since1988, SealBoss has been dedicated to training—from entire companies to individual employees. We are proud to carry forward this legacy of support.

Our on-site training begins with a comprehensive overview of our products and an in-depth look at the pump's features. This is complemented by hands-on practice, where participants get to inject material until they're fully at ease with the application methods and the material's intricacies. We then shift our attention to the proper cleaning procedures for the equipment. We make it a point not to depart from a site until I'm certain that everyone is proficient with our systems and can pass on the knowledge to their peers.

Backed by an expert technical support team, we're always available to address any queries you might have."

SealBoss Technical Sales Team

SealBoss ® 1510 NSF Water Stop Foam for infiltrating water:

Seawall Repair | Crack & Joint Leak-Seal | Soil Stabilization | Permeation Grouting
Defective Concrete (Cracked or Honeycombed)
Concrete Construction Joints & Cracks
Brick Construction, Geo Formations

SealBoss ® 1510 NSF Water Stop Foam Advantages:

Advanced NSF Formulation
Up to 40+ Times Expansion
SealBoss ® Product-Pump-Packer System Solution
Unregulated For Transport
Solvent Free MDI Technology

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

Some of Our SealBoss ® P2002 Drill Operated Injection Pump Advantages

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

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

Tip: Listen to our ‘How To’ Podcast:

Leak Sealing Polyurethane Crack Injection in Concrete and Shotcrete Structures

SealBoss Commercial Starter Kits

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Crack Injection

Water Stop / Leak Sealing Crack Injection
and Structural Crack Injection

What is Crack Injection?

The process of Crack Injection involves injecting an adhesive chemical grout or resin to connect and seal a cracked foundation, slab or wall.

If left untreated, cracks in concrete structures will grow larger over time leading to more destruction and rebar corrosion.

Crack Injection, in infrastructure terms, is the application of a chemical grout, resin or bonding agent into a substrate to repair, seal, permeate and consolidate the substrate to extend the design life of a structure.

Crack Injection can be Grouped into Two Subcategories

The term crack injection, specifically concrete crack injection, covers a variety of injection techniques primarily used in infrastructure waterproofing repairs and structural concrete repairs.

Category 1
Water Stop and Leak Sealing Crack Injection

Injection methods designed to prevent water ingress and migration are subcategory of crack injection known as chemical grouting — referring to the gels, resins and foams as chemical grouts. Chemical grouts include polyurethane resins and acrylic resins. These products are designed to work well in a wet environments. Water stop foams react on contact with water and expand to stop high velocity water flow. Polyurethane resins form semi rigid or flexible seals to permanently prevent water migration.

Category 2
Structural Crack Injection

Methods and products designed to structurally repair concrete are combined in another subcategory of crack injection, known as epoxy crack injection. Epoxy resin adhesives, categorized by strength, viscosity and gel-times, provide outstanding structural properties — a prerequisite for use as a prime load-bearing cracked concrete repair solution.

Powerful Polymers – Comparing Two Categories of Crack Injection Chemical Grouts

Hydrophobic and hydrophilic polyurethane based chemical grouts and structural epoxy based resins are the two major product groups used for crack injection. To better understand the characteristics and differences, please refer to our product comparison called ‘The Crack Injection Superheroes’.

Learn More

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 and make your waterproofing job a painless procedure. If you need rapid results – on-site support from knowledgeable and experienced technical reps is available upon request. Check out our Crack Injection Kits.

Popular Crack Injection Links

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SealBoss 1510 Water Stop Foam Customer Test

Watch the Video

SealBoss 1510 Water Stop Foam Customer Test

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

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

SealBoss Water Stop Foam

Tunnel Segment Injection Repair

Mock-up Repair of a Tunnel Segment Using Polyurethane Foam Injection

Introduction
Within the intricate domain of tunnel leak sealing, polyurethane foam injection stands out for its effectiveness in tackling cracks and leaks.

This case study of a mock-up repair delves into the practical application of this method, exploring how a single tunnel segment was successfully leak seal injected with SealBoss 1510 water stop leak seal foam using specialized equipment.

Objective – Tunnel Segment Injection Repair
To seal a crack in its entirety and to its full depth, in a single tunnel segment, using polyurethane foam injection.

Methodology

Problem Identification
A prominent crack was identified in the tunnel segment, making it a prime candidate for repair. To simulate real-world scenarios, the crack was pre-injected with water to mimic a leak.

Equipment & Material Selection

Pump
SealBoss P2002 Injection Pump, known for its reliability and efficacy in such repair scenarios. The SealBoss P2002 Polyurethane Injection Pump boasts a compact design with an integrated stand. Remarkably lightweight yet powerful, it is compatible with most SealBoss® polyurethane products with viscosities between 10 and 1000 cps. This professional-grade pump offers outstanding output and pressure. Its modular design ensures low maintenance and easy cleaning.

Injection Packer
The SealBoss Evolution Long Aluminum Packer was chosen, a leading choice for deep, angled injections. or a successful injection process, mechanical injection packers and ports are crucial. Our extensive stock is curated to cater to diverse client needs, promising timely deliveries.

Foam
SealBoss 1510 Water Stop Leak Seal Foam, recognized for its water-stopping capabilities. SealBoss 1510, commonly referred to as 1510 Water Stop Foam, stands out as our premier and best-selling grout for addressing water leaks in a majority of crack injection contexts. When combined with 15x Accelerator, this hydrophobic, water-activated grout transforms into a foam seal based on MDI polyurethane. Furthermore, this resin is entirely solvent-free and composed of 100% solids.

Injection Strategy
A singular injection packer was placed at a precise angle towards the crack. This strategic positioning was critical to ensuring the foam could reach the full depth of the crack and seal it effectively.

Execution
With the equipment set and the crack prepped, the SealBoss 1510 foam was injected using the SealBoss P2002 pump through the SealBoss Evolution packer. The foam’s expansive properties, coupled with the angled placement of the injection packer, ensured the material filled the entire crack from depth to surface.

Outcome – Tunnel Segment Injection Repair

Upon completion of the injection process, a thorough inspection was conducted to verify the effectiveness of the repair. The results were clear – the crack had been sealed entirely, with complete, uninterrupted foam penetration along the perimeter.

Key Learnings

Strategic Packer Placement
The success of this repair underscored the importance of correctly positioning the injection packer. An angled approach ensured the foam covered the crack’s entire depth.

Reliable Equipment
The SealBoss P2002 injection pump and SealBoss Evolution packer proved indispensable, delivering the foam efficiently to the target site.

Efficacy of SealBoss 1510
This particular foam showcased its prowess in stopping water ingress, highlighting its potential as a top-tier solution for tunnel repairs.

Conclusion
This case study stands as a testament to the efficacy of polyurethane foam injections in tunnel repair scenarios. When executed with precision and the right equipment, even a single injection point can address extensive cracks, ensuring the longevity and safety of critical infrastructure like tunnels.

Tunnel Segment Injection Repair and other SealBoss Tunnel Sealing Solutions

Tunnel Injection Repair Equipment

SealBoss ® 1510

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

Our #1 Selling Polyurethane Injection Foam
Water Cut-Off Injection Grout
Unregulated for transport. Drinking Water Contact meets NSF/ANSI 61 Section 5 requirements. 1510 PU Foam & Oakum Pipe Plug Kit

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Basement Crack Injection Kit

Basement Crack
Injection Kit
Pro P2002

Basement Crack Injection Kit – The Ultimate Solution for Leak Sealing and Repair

Tracing the Root Cause

The culprits behind basement cracks often lie in the settlement of backfill or inadequate soil conditions. The resulting stress cracks can pave the way for unwelcome moisture intrusion, leading to further damages and the development of mold and unsightly damage over time.

A Comprehensive Crack Repair System

Enter the SealBoss Basement Crack Injection Kit, your ultimate weapon against leaks. This kit simplifies the repair process by delivering an effective, user-friendly solution to stop water in its tracks. The cured seal is airtight, watertight, and hydrophobic, deterring water incursion with utmost efficiency.

Our easy to use kit comprises a SealBoss P2002 high-pressure injection pump, SealBoss 1510 Water Stop Foam hydrophobic resin coupled with a 15x catalyst, and SealBoss Mechanical Injection Packers. When used in unison, these tools empower you to counteract hydrostatic pressure and fill the crack with a specialized water activated polyurethane foam that reacts with the existing moisture.

For complex structural repairs, consider employing the SealBoss Epoxy Injection System and Epoxy Repair Kits. For an in-depth comparison of the two systems, we invite you to explore our article on Epoxy versus Polyurethane.

Crack injections can conveniently be performed from within the structure (aka negative side repair), saving you both time and labor.

Leak Sealing Crack Repair Procedure

We put our Crack Injection Kit to work in a residential basement structure that had three prominent cracks showing signs of moisture intrusion. Signs of a previous unsuccessful repair attempt were also evident.

Post a thorough cleaning and strategic planning, we embarked on the repair process using our 1, 2, 3, 45 Degree Injection Guidelines, initiating with hole placement. The positive movement of water from drill hole to crack and inter-hole travel confirmed the readiness for the crack to be sealed.

The cracks, being approximately 3/8” wide, demanded a slowed injection to prevent wastage and overfill. As the catalyzed 1510 hydrophobic resin flowed from the crack, we employed a spray bottle to expedite the hydro-active reaction of the SealBoss 1510, allowing the foam to seal the crack surface as it cured.

One significant vertical crack had penetrated the foundation and was visible above ground. This crack was treated with foam from the floor up to 12” below the sill plate. The exterior was sealed to guide the expansion and avert exterior leakage. All cracks were sealed successfully, with surplus foam removed to prepare the structure for subsequent treatments, including aesthetic improvements.

Please note, we highly recommend consulting a specialist to investigate and correct any underlying and ongoing causes of structural damages, crack formation, and settling — including, but not limited to, backfill settlement and poor soil density.

SealBoss Water Stop & Leak Sealing Injection Pro Kit

Basement Crack Injection Kit

Injection Resin: SealBoss 1510 w/ 15x Accelerator
Injection Packers: 1/2” 13-100 Evolution Aluminum Packers
High Pressure Pump: P2002 Single Component Injection Pump
Cleaning: R70 Pump Flush

Other Tools Used

Cleaning Materials: Xylene, rags, bucket
Additional Tools: 18” x 1/2″ drill bit — 3/8” Crescent Wrench — Dead Blow Hammer
Hammer Drill — Access 110v Power —
Vacuum

Enjoy Peace of Mind with the SealBoss Concrete Solutions

With our Basement Crack Injection Kit, not only do you have an effective repair solution at your fingertips, but also a path to restore your basement’s integrity and aesthetics. Gone are the days of continually battling the damaging effects of moisture intrusion. Instead, look forward to the assurance of a drier and healthier environment.

Remember that it’s crucial to address any root causes contributing to your basement’s damage. Regular maintenance, appropriate landscaping, and proper drainage can play a significant role in preventing cracks and leaks in the future. If you’re unsure about these aspects, we recommend involving a professional to help you take the right steps.

Your Partner in Crack Repair

We’re more than just providers of crack repair solutions. At SealBoss, we’re committed to being your partner in navigating basement repairs. From understanding the nuances of polyurethane and epoxy, making the right product choice, to walking you through the repair process, we’re with you every step of the way.

Need technical support, additional information, or advice on our products? Don’t hesitate to reach out to us. We’re here to ensure you have everything you need to succeed in your repair projects and maintain the health and longevity of your structure. Trust in us, because with SealBoss, successful basement restoration begins.

Comprehensive Solutions for All Sizes

We understand that not all repair jobs require extensive tools and materials. For those smaller tasks, check out our tailored Small Job Kits. They’re specially designed to handle minor repairs, ensuring you get the same high-quality results without needing to invest in larger quantities or more extensive equipment.

Small Job Kits and Cartridge Solutions

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Basement Crack Injection Systems

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EZ-FIT Injection Packer

EZ-Fit Injection Packer

The Washer:
Where Ease Meets Excellence in Injection.

Introducing the SealBoss® EZ-Fit Injection Packer:

Elevating Precision in Packer Installation

In our quest to enhance the user experience and precision in packer installation, we’ve innovatively designed the SealBoss® EZ-Fit Injection Packer. One of its standout features is the strategically placed washer at the top of the packer body. This washer serves as an intuitive guide, ensuring swift and accurate packer placement.

Gone are the days of second-guessing during packer installation. The moment the washer touches the substrate, the applicator can be confident that the EZ-Fit Packer is perfectly positioned within the drill hole, primed and ready for tightening.

But that’s not all. We’ve fortified the injection port with heavy-duty steel, ensuring its durability and longevity. Complementing this robust design is a soft-grade rubber sleeve, which provides enhanced friction and grip, ensuring a secure and efficient injection process.

Experience the difference with the SealBoss® EZ-Fit Injection Packer – where precision meets performance.

The SealBoss ® EZ-Fit Packer style has a strong following with some experienced contractors while boosting confidence among contractors new to the crack injection business.

Packer Technology since 1988

SealBoss has been a leader in the injection packer technology since 1988. Mechanical packers and injection ports are the gateway to successful injection. SealBoss supplies injection packers to customers worldwide. We offer mechanical packers varying in all key designs including packer material types and dimensions. We also offer custom designs and production for our customers.

Find More information here

SealBoss Quick Info Crack Injection

SealBoss ® Packer Quick Reference

With offerings spanning the waterproofing, floor repair, and structural repair scopes,
SealBoss ® is your source for proven concrete repair materials.

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How to Seal Leaks | Repair Cracks in Shotcrete

How to Seal Leaks and Repair Cracks in Shotcrete:

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

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

The Challenge: Leaks and Cracks in Decorative Shotcrete

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

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

The Solution: SealBoss 1510 Foam and P2002 Polyurethane Pump

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

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

The Process: Hydro Active Foam Injection Technique

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

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

The Outcome: A Leak-Free, Restored Structure

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

Training and Support

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

Conclusion

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

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

SealBoss ® P2002 Drill Operated Injection Pump Advantages