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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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Hydrophobic versus Hydrophilic Polyurethanes

Hydrophobic vs Hydrophilic Polyurethanes

Injection Foams, Resins and Gels

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

Related Articles

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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Swimming Pool Soil Settlement

Soil Settlement effecting Swimming Pools – Overview:

Insight, Management, and Prevention

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

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

For Information on Pool Crack Repair click here

Understanding Soil Composition and Settlement

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

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

Ramifications of Soil Settlement around Swimming Pools

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

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

The SealBoss Polyurethane Foam Injection System

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

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

Implementing the SealBoss Polyurethane Foam Injection System:

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

Preventive Measures Using the SealBoss System

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

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

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

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

Soil Settlement Systems

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Pool Crack Repair

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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

Popular Water Stop & Leak Sealing Injection Links

Basement Crack Injection Systems

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Concrete Leveling Polyurethane Foam

Introduction to Concrete Leveling Polyurethane Foam

Various factors necessitate the use of concrete leveling foam.

Erosion, resulting from water washing out the soil underneath the slab, is a key contributor. This can occur when a property’s slope directs water towards your slab or when gutter runoff or sewer line breakages lead to wastewater seeping into the soil.

Substandard soil compaction prior to slab placement is another issue. The soil underneath the slab should be thoroughly compacted to shrink the space between soil particles and form a dense foundation. Should this step be omitted or improperly executed, the slab may start to sink.

Another concern is expansive soil, which swells upon water absorption and lifts the slab. As it dries, the slab can sink, leading to a cycle of lifting, sinking, and cracking.

Lastly, the roots of large trees near the slab can impact the slab. These roots can absorb water under the slab, causing the soil to shrink. The decay of these roots following the tree’s death can create voids beneath the concrete slab.

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

The Process

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

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

Applications of Concrete Leveling Foam

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

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

Concrete Leveling Polyurethane Foam Injection vs. Mudjacking

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

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

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

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Crack Injection Tools & Accessories

Your Ultimate Source for Crack Injection Tools & Accessories

As a comprehensive supplier of concrete crack repair solutions, we present a wide range of crack injection tools and accessories. Our product line supports both low and high-pressure injection systems, ensuring we cater to diverse project requirements.

From seasoned contractors to first-time fixers, our quality components mark off every item on your essential supplies checklist, propelling you toward triumphant foundation crack repairs.

Elevate your repair game with our Crack Injection Tools & Accessories – because successful foundation restoration starts here.

Injection Lances / Needles

Static Mixers

Applicators

Hose sets

Crack Injection Hand Tools

Injection Packers

Couplers / Fittings

Surface Ports

Pumps

Crack Injection Tools & Accessories

We stand firmly behind our mission to provide you with effective and dependable Crack Injection Tools & Accessories. We acknowledge the varying needs of different projects and have tailored our range to satisfy both low and high-pressure injection requirements. No matter your level of experience, from seasoned professionals to novice enthusiasts, we’re confident that our quality components will meet your needs for successful foundation crack repairs.

Should you require any assistance, need more information or advice on any of our products, our expert technical support team is readily available. We are here to help guide you through your purchasing decision and offer unparalleled after-sales support, ensuring your repair jobs are always accomplished with precision and efficiency. Your successful foundation restoration truly begins with us.

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Chemical Grouting Leaking Tieback Anchors

Chemical Grouting
Leaking Tieback Anchors

What Are Tieback Anchors and Why Do They Leak?

Tieback anchors are crucial elements in the domains of construction and geotechnical engineering, serving a key role in providing lateral support to features such as retaining walls, foundation walls, slopes, and excavations.

In certain conditions however, tiebacks may become prone to leaks, a problem that can arise due to a range of factors such as a high groundwater table, shifts in the ground, general wear and tear, and corrosion. This can compromise the effectiveness of the anchors and allow unwelcome water penetration into the building structures, creating significant issues.

How to Seal Leaking Tieback Anchors with Polyurethane Chemical Grout SealBoss 1510 Water Stop Foam

Dealing with leaking tiebacks and foundation wall anchors can be a challenge in the world of construction and civil engineering. However, chemical grouting of leaking tieback anchors offers an effective solution. This article will provide a quick guide on how to use chemical grouts to address leaking issues in tie-back anchors.

Why Choose SealBoss Chemical Grout?

SealBoss Chemcial Grouts are polyurethane injection foams specially formulated to stop water leaks in concrete and masonry structures. They offer rapid reaction times, work extremely well in wet environments, and expands to seal the leaks effectively and permanently.

A Quick Guide to Seal Leaking Tieback Anchors

1. Locate the Leak: Begin by pinpointing the location of the leak.

2. Prep the Injection Site: Once you’ve identified the leak, clean the surface area and drill injection packer holes at the leakage area. In our example optimized placement of injection packers is in a circular or ring-like pattern along the patch plug,

3. Install the Injection Packers: Insert the injection packesr into the drilled holse. The packers acts as a conduit for the SealBoss Chemcial Grout.

4. Prepare the SealBoss Chemcial Grout: Mix the SealBoss foam grout with SealBoss 15X Accelerator according to the manufacturer’s instructions to ensure optimal performance.

5. Inject the Chemical Grout Foam: Use an injection pump, such as the SealBoss IP495 or the P2002, to inject the leak sealing grout foam into the packer. The foam will react and expand upon contact with water, effectively sealing the leak.

6. Monitor the Situation: After the foam has cured, monitor the site to ensure the leak has been successfully stopped. If necessary, repeat the injection process until the leakage is completely sealed.

Conclusion
Sealing leaking tie-back anchors doesn’t have to be a complex task. With SealBoss Chemcial Grouts, you can effectively address leaking tieback anchors, ensuring the structural integrity of your construction project.

Contact Your SealBoss ® Technician

Vehicular Barrier Wall – Bumper Wall Repair

Vehicular Barrier Wall / Bumper Wall Repair

Epoxy Dispensing Systems

An Overview to Vehicular Barrier – Bumper Wall Crack Repair in Parking Garages Using the SealBoss P3003 Epoxy Injection Pump and SealBoss Surface Mounted Tri-Base Epoxy Injection Port System

Maintaining the integrity and safety of parking structures is paramount, specifically the vehicular barriers or bumper walls. These walls play a significant role in preventing accidents, thereby ensuring the protection of property and human lives.

Over time, due to various factors such as stress, wear and tear, or movement of reinforcing lateral cables causing additional forces, these barriers often develop structural and shrinkage cracks. This is where the technology of epoxy injection comes to the rescue.

The Damage: Cracked Vehicular Barriers

Cracks can be a source of structural weakness in parking garage bumper walls. They may compromise the strength and stability of the barrier, leading to potential safety hazards. Additionally, moisture seeping through these cracks can cause the steel reinforcement to corrode and the concrete to spall, igniting a vicious cycle of accelerating deterioration.

The Answer: Epoxy Injection

Epoxy injection presents itself as a proven, cost-effective method to repair cracks in structures. The technique involves the injection of a low-viscosity epoxy into the cracks. The injected epoxy fills the void and, once cured, can restore the structural integrity and strength of the concrete structure, warding off further damage.

The Tools: Epoxy Dispensing System

Proven reliability and cost-effectiveness, the SealBoss P3003 Epoxy Injection Pump and SealBoss Surface Mount Tri-Base Ports exemplify a professional solution for epoxy pressure dispensing.

Scope: Inject Structural Cracks on Exterior Vehicular Barrier Wall

Professional Epoxy Dispensing System:
SealBoss P3003 Epoxy Injection Pump & SealBoss Surface Mounted Tri-Base Ports

A successful epoxy injection process relies heavily on the right equipment. The SealBoss P3003 Epoxy Injection Pump and SealBoss Surface Mounted Tri-Base Ports are precisely designed to manage such repairs. Specifically, the P3003 pump is custom-designed with a 2:1 ratio feature in mind, or, if needed, a 1:1 ratio conversion, vital for most structural epoxies, providing optimal curing and strength characteristics.

Procedure: Repairing Cracks with Epoxy Injection

The epoxy injection process kicks off by preparing the crack for repair. Any loose concrete or debris within the crack is removed, the paint is grinded off, and the surface is cleaned thoroughly. For fine shrinkage cracks, the contractor chases the cracks out to allow for proper material travel during injection.

Connectors: SealBoss Tri-Base Ports

The SealBoss Surface Mounted Tri-Base Ports are strategically installed along the crack. Acting as a connector between the injection machine or dispenser, they are placed directly over the crack, and a non-sag, fast setting epoxy paste is built up around the port to ensure a proper seal that can hold pressure.

1/4 EPOXY PORT | TRIBASE PORT
SURFACE MOUNTED PORT

SURFACE PORT

Epoxy Injection Port – Industry Standard Bestseller

Durable plastic design surface mounted port. Tri-Base design with perforation holes for best possible adhesion. .

Dispenser: SealBoss P3003 Epoxy Pump

Having completed the preparation phase, the SealBoss P3003 Epoxy Injection Pump is effectively engaged as the device for dispensing the epoxy. This allows for the precise injection of the epoxy resin into the existing cracks through the strategically placed ports. The process starts at the lowest port on a vertical crack or the first port on a horizontal crack. Epoxy is injected until it begins to appear at the next port, signifying that the section of the crack between the ports has been filled. The injection process then proceeds to the next port, repeating the process until the entire crack has been repaired.

Once the epoxy has cured, the ports and the surface seal are removed. The result is a structurally sound bumper wall, restored to its original strength and durability.

P3003-2C PUR & Epoxy Pump

Versatile,
Pumps Epoxy & PU Resin
Electric Drill Operated
Dual Piston System
5000 psi
2 Comp.
Ratio: 2:1 standard, 1:1 custom

Conclusion

The fusion of the SealBoss P3003 Injection Pump with the SealBoss Surface Mounted Tri-Base Port connection system, complemented by superior-quality epoxy polymer resin, forms an efficient solution for concrete injection tasks.

Designed to address a wide variety of concrete repairs, its capabilities extend well beyond fixing vehicular barriers in parking garages, providing a robust system for an extensive range of concrete structures.

It is always advisable to engage professionals experienced with epoxy injection techniques to ensure the most effective and optimal results for these critical repairs.

Additional SealBoss Surface Ports and Epoxy Pumps

1/4 EPOXY CORNER PORT

Epoxy Injection Corner Port

Durable plastic design corner surface port suitable for epoxy injections. Corner base design with perforation holes for best possible adhesion.

1/2" EPOXY DRILL HOLE / HAMMER-IN PORT

Epoxy Injection Drill Hole Mount Port

Durable plastic port designed to fit 1/2″ drill hole for higher injection pressures than regular surface ports.

PA3000 The Epoxy Pump Standard

Top of the Line – Professional Use
Pumps Epoxy & PU resin
Pneumatic
850 psi
2 Comp.
Ratio: 2:1 Standard, 1:1 custom

PA5000 Epoxy Pump

Top of the Line – Professional Use
Pumps Epoxy & PU resin
Pneumatic
1000 psi
2 Comp.
Ratio: 2:1 Standard, 1:1 custom

SealBoss Epoxy Injection System

Related Articles

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Sealing Leaking Conduits

An Effective Solution:
Using SealBoss 1500 Hot Shot Cartridges

Tackling leaking conduits can be quite daunting without the appropriate tools and products. Thankfully, a reliable and effective solution is available – SealBoss 1500 Hot Shot Cartridges. This cartridge provides a swift cure, dispensing a hydrophobic polyurethane foam that stops water and seals leaks efficiently.

Big Shots – Understanding SealBoss 1500 Hot Shot Cartridges

This hydrophobic, water-activated grout is a leak-seal foam based on a phthalate-free, MDI polyurethane. Being a 100% solvent-free, 100% solids two-component formulation mixed at a 1:1 ratio by volume, it’s an eco-friendly solution designed to seal leaks effectively.

When it comes into contact with water, SealBoss 1500 Hot Shot Polymer reacts to form a semi-flexible foam, expanding its volume by 30 to 40 times. The cured material retains a constant volume, and because water isn’t a component of the foam structure, the cured material is virtually unaffected by water or dryness. As a result, the material essentially doesn’t shrink or swell.

SealBoss 1500 Hot Shot Cartridges are expertly designed stop water seepage and to fill both small and large voids typically present in conduits and around pipe penetrations.

Excelling as both a filler and sealer, 1500 Hot Shots are adaptable to a range of environments, including gravel layers, rock fissures, and joints, as well as cracks in concrete structures. Its ability to abruptly halt high-pressure and high-speed water flows makes it an exceptionally versatile solution, even in the most challenging leakage scenarios.

The Oakum Soakum Technique

You can also use SealBoss 1500 Hot Shot Cartridges with SealBoss 1500 Seal Oakum by employing the ‘Oakum Soakum Technique.’ This method further enhances the seal’s effectiveness, especially in challenging environments.

Sealing Leaking Conduits with SealBoss Hot Shots

Ensure that the cartridge is thoroughly shaken, affix the Static Mixer, and then insert it into the application gun. Now, you’re all set to dispense the product and achieve a permanent seal.

SealBoss 1500 Hot Shot Cartridges are part of the SealBoss Cartridge System. The mix ratio by volume is 1:1, ensuring ease of use and optimal effectiveness. It reacts with the moisture in the substrate, eliminating the need for added amounts of water for the reaction to occur.

“Injections of leaking conduits with @sealbosscorp 1500. Simple fix”
– Surfside Restoration on the efficacy of SealBoss Hot Shot Cartridges

In Conclusion

SealBoss 1500 Hot Shot Cartridges offer an effective, efficient, and eco-friendly solution to sealing leaking conduits. By choosing this product, you’re opting for a reliable, high-quality product designed to handle leaks of varying degrees, ensuring the longevity and proper functioning of your systems. Always consult with a professional if you are unsure about any steps in the process to guarantee the best results.

Related Product – See What this CAN can DO:

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Static Mixers | Motionless Mixers Overview

Why Are Static Mixers Important?

Static mixers are engineered for the continuous mixing of fluid materials, without moving components.

The use of the correct static mixer is vital for several reasons:

Thorough Mixing: Static mixers are designed to ensure a thorough blending of the chemical components. The result is a uniform and consistent mixture, crucial for the overall performance and effectiveness of the applied product.

Product Flow: Different static mixers can affect the flow of your product. A well-selected mixer will ensure the right balance between mixing performance and product flow, helping you avoid potential application issues.

Achieving Desired Results: The use of the right static mixer helps ensure that your two-component SealBoss product performs as expected, providing you with the desired results for your specific application.

We Optimize Your Results
by Preselecting the Ideal Static Mixer
for Your Two-Component SealBoss Product

Static Mixer Page

How to Choose the Right Static Mixer

Choosing the right static mixer might appear daunting, given the variables involved – such as the physical and chemical properties of the chemical resins, their mixing behaviors, induction times, flow characteristics, and viscosities.

However, the process becomes considerably simpler when you consider that we have already conducted extensive research to establish the product/mixer pairings that offer the best results for your product and dispenser/pumping equipment. Therefore, you can rely on our guidance and expertise in making your selection.

Here are the main factors to consider when choosing a static mixer:

Chemical Resin Properties:
Take into account the physical and chemical properties of the chemical resins, such as their viscosities and mixing behaviors. These factors can significantly affect the performance of the static mixer.

Induction Time and Flow Characteristics:
The induction time (the period required for the mixer to achieve a homogenous mix) and the flow characteristics of your product are also crucial considerations. The correct static mixer will ensure optimal induction time and ideal flow properties.

Compatibility with Pumping Equipment:
The selected static mixer should be compatible with your existing dispensing or pumping equipment to ensure seamless integration and optimum performance.

SealBoss Assistance

At SealBoss, we stand ready to assist you with any queries about our extensive selection of injection equipment and accessories. We understand that each project has its unique challenges and requirements, and our team is dedicated to helping you find the most suitable solutions for your specific needs.

Don’t hesitate to contact us for more information. Your representative will be more than happy to assist, ensuring that you have all the knowledge and tools necessary to achieve the best possible results with your SealBoss products.

In conclusion, static mixers play an indispensable role in maximizing the effectiveness and consistency of two-component SealBoss products. By understanding their function and importance, and by making the right selection based on your product and application needs, you can enhance your operations’ efficiency and results.

Remember, the right static mixer, in combination with our high-quality SealBoss products, can significantly contribute to the success of your projects.

So, take your time to understand your needs, consult with our team, and make an informed choice.

Happy Mixing!

STATIC MIXER PAGE

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