Alchatek Blog

In the earlier posts of this series, the importance of slab leveling, and soil stabilization has been emphasized, along with the specific risks faced by various industries and the notable advantages of using polyurethane, as supported by real-world case studies. The focus now shifts to providing commercial property owners and managers with actionable steps for effectively addressing these critical issues.

Initial Inspection and Assessment

Why It's Important

Before you can fix a problem, you need to know what the problem is. An initial inspection will help you identify the areas that require attention.

How to Do It

• Visual Inspection: Walk around the property to look for visible signs of sinking slabs or unstable soil. This could include cracks in the concrete, uneven floors, or pooling water.
• Professional Consultation: For a more thorough assessment, consider hiring a professional who specializes in slab leveling and soil stabilization. They can use specialized equipment to measure the extent of the problem accurately.

Choose the Right Solution

Why It's Important

Different problems require different solutions. The right approach will depend on the extent of the issue, the type of soil, and the specific needs of your property.

How to Do It

• Consult Experts: Discuss the findings of the inspection with professionals to determine the most effective solution. This could range from polyurethane injections to more traditional methods like mud jacking or even slab replacement in extreme cases.
• Cost-Benefit Analysis: Evaluate the long-term benefits and costs of each solution. While polyurethane might have a higher upfront cost, its durability and speed could result in lower long-term expenses.

Select a Contractor or Service Provider

Why It's Important

The success of the project largely depends on the expertise of the contractor or service provider you choose.

How to Do It

• Check Credentials: Make sure the contractor is certified, insured, and has a good track record in slab leveling and soil stabilization.
• Get Multiple Quotes: Don't settle for the first quote you receive. Get estimates from multiple contractors to ensure you're getting the best value.
• Ask for References: A reputable contractor will be able to provide references or case studies that demonstrate their expertise.

Prepare for the Project

Why It's Important

Proper preparation ensures that the project goes smoothly, minimizing disruptions to your business operations.

How to Do It

• Schedule Wisely: Choose a time for the project that will have the least impact on your business. This could be during off-hours or a less busy season.
• Notify Stakeholders: Inform employees, tenants, or customers in advance so they can prepare for any temporary inconveniences.

Monitor the Project

Why It's Important

Active involvement in the project allows you to address any issues promptly, ensuring the project stays on track.

How to Do It

• Regular Updates: Ask for regular updates from the contractor, including any challenges they encounter and how they plan to address them.
• On-Site Visits: If possible, make occasional visits to the site to monitor progress and ensure that the work is being carried out to your satisfaction.

Post-Project Assessment and Maintenance

Why It's Important

Once the project is completed, a final assessment ensures that the issue has been effectively resolved and helps you plan for any future maintenance.

How to Do It

• Final Inspection: Conduct a final walk-through with the contractor to ensure that all objectives have been met.
• Maintenance Plan: Discuss any recommended maintenance or follow-up actions to ensure the longevity of the repair.

Taking proactive steps to address slab leveling and soil stabilization issues in your commercial property is not just a matter of maintenance; it's an investment in the safety, functionality, and longevity of your asset. Consult with professionals, choose the right solutions, and monitor the project closely to ensure its success.

For more information on concrete leveling and soil stabilization...

In the field of commercial property management, maintaining the integrity of concrete slabs and soil stability is crucial. Although the general advantages of using polyurethane have been discussed, real-world case studies provide the most compelling evidence of its effectiveness. This post will explore two such case studies to demonstrate the efficacy of polyurethane in addressing complex slab and soil challenges.

Case Study - Agricultural Plant Slab Lift

The Challenge

Located just outside Saskatoon, Saskatchewan, a 12,000-square-foot cement manufacturing plant built in the 1960s was being re-purposed as an agricultural seed sorting facility. The plant's 10-inch thick, double rebar, 8000 psi concrete floors had settled due to an undetected broken water main on an adjoining property. The floors had sunk as much as 7 inches, becoming independent of the footings. Initial plans to demolish and replace the slabs were halted when they proved too resilient for even a track-hoe-mounted jackhammer. With the harvest season fast approaching, the property owner was in a bind.

Powerful Polymers

AP Lift 440, a high-strength, hydro-insensitive structural polyurethane foam, was chosen for the job. Known for its exceptional lifting and supporting capabilities, especially for heavy concrete floors that have settled due to water infiltration, it provided an ideal solution.

Painless Procedure

An Alchatek-certified contractor was brought in to tackle the problem. Five slabs were lifted, and three others were fine-tuned, correcting the unsuccessful attempts made earlier with cement grout. In less than a week, nearly 900,000 pounds of the sunken slab were lifted using only twelve 100-gallon sets of AP Lift 440.

Rapid Result

The polyurethane foam delivered a level of precision far superior to traditional mud jacking methods. This allowed for the installation of high-tech seed-sorting equipment just in time for the fall harvest. The floors remain perfectly level to this day, showcasing the long-lasting effectiveness of polyurethane solutions.

Case Study - New Construction Foundation Stabilization

The Challenge

A general contractor working on a new commercial construction project in Atlanta faced a critical issue during the foundation phase. Sheet pile panels were used for erosion control while pouring the foundation walls. However, a layer of gravel and soil between the panels and the foundation needed to be stabilized before the sheet piles could be removed, to prevent the soil from becoming unstable and compromising the foundation.

Powerful Polymers

Alchatek’s AP Fill 720 structural polymer was selected for its ability to permeate soil and encapsulate gravel, creating a solid mass. This polymer is known for its high strength and versatility, making it an ideal choice for foundation stabilization.

Painless Procedure

The crew inserted injection rods about 12 feet deep at a spacing ratio of 3 feet apart along the entire length of the foundation wall. The structural polymer was then injected until it bubbled up through the surface of the ground, indicating that the soil and gravel had been fully encapsulated.

Rapid Result

The soil and gravel layer was effectively locked into place. When the sheet piles were removed, only a thin gap remained, which was then filled with cement. This left a solid, supportive wall of soil, gravel, and grout to support the foundation, showcasing the effectiveness of polyurethane in foundation stabilization.
These case studies demonstrate the unparalleled effectiveness of polyurethane in addressing complex slab and soil issues in commercial settings. Whether you're dealing with an old structure requiring slab lifting or a new construction needing soil stabilization, polyurethane offers a rapid, precise, and long-lasting solution.

For more information on concrete leveling and soil stabilization...

In the previous post, the basics of slab leveling, and soil stabilization were introduced, along with a discussion on the types of commercial properties commonly affected by these issues. Today's focus will be on delving deeper into the specific risks and dangers that different industries face when it comes to sinking slabs and unstable soil.

Warehouses and Manufacturing Plants

Risks

• Damage to Inventory: Sinking slabs can lead to uneven floors, causing racks to tilt and possibly collapse, damaging the stored goods.
• Machinery Misalignment: Production lines and heavy machinery require level surfaces for optimal operation. A sinking slab can lead to misalignment, affecting production quality and efficiency.
• Operational Delays: Uneven surfaces can slow down the movement of goods within the warehouse, leading to delays and increased operational costs.

Dangers

• Forklift Accidents: Uneven floors can cause forklifts to tip over, leading to potential injuries and damage to goods.
• Employee Safety: Trip hazards due to uneven floors can result in falls, leading to injuries and potential workers' compensation claims.

Retail Centers and Public Spaces

Risks

• Damage to Store Fixtures: Sinking slabs can lead to tilted shelves and display units, causing merchandise to fall and get damaged.
• Reputation: The appearance of cracked or uneven floors can deter customers, affecting foot traffic and sales.
• Legal Liability: If a customer trips and falls due to an uneven surface, the property owner could be held liable for injuries.

Dangers

• Customer Safety: Trip and fall hazards can result in injuries to customers, leading to potential lawsuits and a tarnished reputation.
• Employee Well-being: Staff members are also at risk of tripping over uneven surfaces, which can lead to injuries and absenteeism.

Healthcare and Educational Institutions

Risks

• Equipment Misalignment: In healthcare settings, specialized medical equipment like MRI machines and surgical tables require level surfaces for accurate operation. Sinking slabs can lead to misalignment, affecting patient care.
• Facility Damage: Lecture halls, classrooms, and laboratories in educational institutions can suffer from structural damage, affecting the quality of education.
• Operational Disruption: Both healthcare and educational facilities are places where timely service is crucial. Structural issues can lead to room closures and service interruptions.

Dangers

• Patient and Student Safety: Trip hazards can be especially problematic in healthcare settings, where patients may already be in a vulnerable state. In educational institutions, the safety of young students is a primary concern.
• Emergency Response: In healthcare settings, uneven floors can impede the quick movement of medical staff during emergencies, potentially affecting patient outcomes.

If you recognize your industry in this list and have not yet assessed the state of your property's slabs and soil, it's time to consult with professionals. Specialized contractors can provide industry-specific solutions to mitigate these risks and dangers effectively.

For more information on concrete leveling and soil stabilization...

If you own or manage a commercial property, you've likely heard the terms "slab leveling" and "soil stabilization." But what do these terms mean, and why should you care? This blog post aims to demystify these critical processes and shed light on their importance for maintaining the structural integrity and safety of your property.

Concrete Leveling and Soil Stabilization

Slab leveling refers to the process of correcting uneven or sinking concrete slabs. Over time, the soil beneath these slabs can shift or settle, causing the concrete to become uneven. Soil stabilization, on the other hand, involves treating the soil to improve its load-bearing capacity, thereby preventing future sinking or shifting of the slab.

Types of Commercial Properties Affected

Almost every type of commercial property has areas with large concrete slabs. Whether you own a warehouse, a retail center, or an office building, chances are you have concrete slabs that could be affected by sinking or shifting soil. Here's a quick list of property types commonly affected:

• Warehouses and Distribution Centers
• Manufacturing Plants
• Retail Centers and Malls
• Office Buildings
• Data Centers
• Airport Terminals and Hangars
• Parking Garages
• Hotels and Resorts
• Hospitals and Medical Centers
• Educational Institutions
• Sports Arenas and Stadiums
• Convention Centers
• Grocery Stores and Supermarkets
• Auto Dealerships and Service Centers
• Public Transit Stations
• Theaters and Cinemas
• Fitness Centers and Gyms
• Restaurants and Cafes
• Self-Storage Facilities
• Agricultural Facilities

Why It Matters

Ignoring the signs of sinking slabs and unstable soil can lead to a host of problems, ranging from minor inconveniences to major structural issues. Here are some reasons why you should take these issues seriously:

Safety Risks

Uneven slabs create trip hazards, putting employees, customers, and visitors at risk of injury. In a worst-case scenario, this could lead to lawsuits or regulatory action against your business.

Structural Integrity

Sinking slabs and unstable soil can compromise the structural integrity of your building. Over time, this can lead to more severe problems like cracks in the walls, misaligned doors and windows, and even structural failure in extreme cases.

Operational Efficiency

In industrial settings like warehouses and manufacturing plants, uneven slabs can disrupt the smooth operation of machinery, leading to inefficiencies and increased operational costs.

Aesthetic Appeal

For retail centers and hotels, aesthetic appeal is crucial for attracting customers. Sinking slabs and cracked floors can significantly diminish the appearance of your property, affecting your business's reputation.

Financial Implications

Ignoring the problem today can lead to more expensive repairs down the line. Early intervention is often more cost-effective, saving you money in the long run.

For more information on concrete leveling and soil stabilization...

The Maze of Repair-Related Regulations

For municipal managers overseeing stormwater and wastewater systems, the regulatory landscape can often feel like a complex maze. When it comes to repairs on manholes and lift stations, the stakes are even higher. Regulatory compliance is not just a matter of adhering to best practices; it's a legal requirement that carries significant consequences for non-compliance. This blog post aims to guide you through the labyrinth of permits and compliance requirements, offering tips for staying ahead of regulatory changes and outlining the benefits of compliant repair practices.

Navigating Permits and Compliance During Repair Projects

Understanding the Regulatory Framework

Before embarking on any repair project, it's crucial to have a thorough understanding of the regulatory framework that governs stormwater and wastewater systems. This includes federal, state, and local regulations, as well as industry standards. Ignorance is not an excuse in the eyes of the law, and failure to comply can result in hefty fines, legal action, and damage to your municipality's reputation.

Obtaining Necessary Permits

Permit acquisition is often the first step in any repair project. Whether it's a minor leak seal or a major overhaul, permits are usually required to ensure that the work meets established safety and environmental standards. Make sure to apply for these permits well in advance of your planned repair dates, as the approval process can be time-consuming.

Compliance Checks and Balances

Once you've obtained the necessary permits, the next step is to ensure that the repair work itself adheres to all regulatory requirements. This often involves:

• Pre-repair inspections to assess the scope and impact of the work.
• Mid-repair checks to ensure that the work is proceeding as per the approved plans.
• Post-repair audits to confirm that the repairs meet all compliance standards.

Record-Keeping

Maintaining detailed records is not just good practice; it's often a regulatory requirement. Documentation should include:

• The initial assessment and scope of the repair.
• All permits and approvals.
• Details of the repair process, including materials used and personnel involved.
• Final inspection reports and compliance certifications.

Tips for Staying Ahead of Regulatory Changes

Regular Training and Updates

Regulations are not static; they evolve over time. Regular training sessions can help your team stay updated on the latest changes and how they impact your operations.

Consult Regulatory Agencies

Don't hesitate to consult with regulatory agencies for guidance. They can provide valuable insights into compliance requirements and may even offer resources to help you meet them.

Leverage Technology

Modern technology can be a valuable ally in maintaining compliance. Software solutions are available that can track permit statuses, alert you to upcoming regulatory changes, and even automate some aspects of the compliance process.

Peer Networking

Networking with peers in other municipalities can provide additional perspectives on how to navigate the complex world of regulatory compliance. Industry conferences, webinars, and online forums are excellent platforms for such interactions.

The Benefits of Compliant Repair Practices

Adhering to regulatory compliance during repairs is not just a legal necessity; it offers several tangible benefits:

Risk Mitigation

Compliance reduces the risk of legal repercussions, including fines and lawsuits, that can be both financially and reputationally damaging.

Operational Efficiency

A well-planned, compliant repair process is often more efficient, minimizing downtime and ensuring that repairs are durable and effective.

Public Trust

Compliance with regulations not only protects the municipality from legal consequences but also builds public trust. When residents see that their local government is committed to following the law and protecting public safety, it enhances the municipality's credibility.

Environmental Stewardship

Many regulations are designed to protect the environment. By adhering to these rules, municipalities contribute to broader environmental conservation efforts, aligning with public sentiment and ethical responsibilities.

In summary, navigating the maze of repair-related regulations may be challenging, but the benefits of doing so are manifold. By understanding the regulatory landscape, obtaining necessary permits, and maintaining rigorous compliance checks, municipal managers can ensure that their repair projects are not only successful but also legally sound. Staying ahead of regulatory changes through training, consultation, and technology can further streamline this process, making compliance an integrated part of your operational strategy.

For information on municipal leak seal products...

The High Stakes of Unpredictability

Extreme weather events are becoming increasingly unpredictable, posing significant risks to municipal stormwater and wastewater systems. For municipal managers in charge of these systems, the unpredictability translates into a heightened risk of expensive emergency repairs, especially concerning manholes and lift stations. This blog post aims to shed light on how preventative maintenance, particularly with the use of polyurethane grout, can save municipalities from the financial burden of emergency repairs.

The Cost of Negligence: Emergency Repairs

When a stormwater or wastewater system fails, especially during an extreme weather event, the immediate need for repair can be both urgent and costly. Emergency leak seal repairs on manholes and lift stations can cost up to three times the price of preventative maintenance. These emergency situations often require immediate action, specialized labor, and sometimes even system shutdowns, all of which contribute to inflated costs.

The Power of Prevention: Polyurethane Grout

One of the most effective ways to prevent the need for such expensive emergency repairs is using polyurethane grout in preventative maintenance. Polyurethane grout offers a cost-effective, durable solution for sealing leaks and stabilizing structures. It provides a long-lasting seal that can withstand the pressures and conditions often exacerbated by extreme weather events.

Why Polyurethane Grout?

• Durability: Polyurethane grout is highly resistant to wear and tear, making it a long-lasting solution.
• Flexibility: Unlike traditional materials, polyurethane grout can expand and contract, making it ideal for fluctuating weather conditions.
• Cost-Effectiveness: While the upfront cost may be a consideration, the long-term savings in avoided emergency repairs make it a wise investment.

Implementing a Preventative Maintenance Plan

Preventative maintenance is not just about fixing problems as they arise; it's about anticipating issues and addressing them before they escalate into emergencies. Here's how to implement a preventative maintenance plan effectively:

Conduct Regular Inspections

Regular inspections of manholes and lift stations are crucial. Utilize modern technologies like CCTV cameras and sensor systems to monitor the condition of these structures continually.

Prioritize Areas for Maintenance

Not all areas will require immediate attention. Use the data collected during inspections to prioritize areas that are most at risk.

Schedule Preventative Maintenance

Once you've identified the priority areas, schedule preventative maintenance activities. This is where polyurethane grout comes into play. Use it to seal minor leaks and reinforce structures that show signs of wear and tear.

Train Your Team

Ensure that your maintenance team is well-trained in using polyurethane grout and other preventative maintenance technologies. Their skill level can significantly impact the effectiveness of your maintenance activities.

Monitor and Adjust

After implementing your preventative maintenance plan, continue to monitor its effectiveness. Adjust as necessary, and don't hesitate to update your plan to accommodate new technologies or methods.

The Financial Logic: Cost-Benefit Analysis

When weighing the costs and benefits of a preventative maintenance plan, the numbers speak for themselves. The initial investment in polyurethane grout and other preventative measures pales in comparison to the potential costs of emergency repairs. Factor in the additional benefits of avoiding system downtime, and the case for preventative maintenance becomes even more compelling.

The Long-Term Benefits of Preventative Maintenance

Preventative maintenance, especially when utilizing polyurethane grout, offers municipalities a viable path to avoid the financial and operational pitfalls associated with emergency repairs. It's not just about cost-saving; it's about operational efficiency, system reliability, and ultimately, public safety. By adopting a proactive approach to maintenance, municipal managers can effectively mitigate the risks posed by the increasing unpredictability of extreme weather events. In doing so, they not only protect their communities but also ensure the longevity and reliability of critical infrastructure.

For more information on sealing leaks with polyurethane grout...

The Environmental Stakes of Wastewater Management

Wastewater management is not just a logistical challenge; it's an environmental imperative. The stakes are high, and the consequences of mismanagement can be devastating. From contaminating water bodies to harming aquatic life, the environmental impact of poorly managed wastewater systems is far-reaching. As stewards of public infrastructure, municipal managers have a responsibility to not only ensure the effective treatment of wastewater but also to minimize its environmental footprint.

Eco-Friendly Technologies and Practices

Fortunately, advances in technology and best practices offer a path to more sustainable wastewater management. Here are some of the leading eco-friendly technologies and practices that can make a significant difference:

Membrane Bioreactors (MBRs)

MBRs combine conventional activated sludge treatment with membrane filtration. This technology offers higher-quality effluent and reduces the need for chemical use in wastewater treatment.

Anaerobic Digestion

Anaerobic digestion breaks down organic matter in the absence of oxygen, producing biogas that can be used for energy. This process reduces the volume of sludge and its associated disposal costs.

Phytoremediation

Using plants to remove or neutralize pollutants in water is an eco-friendly and cost-effective method. Wetlands, for example, can be engineered to treat wastewater naturally.

Energy-Efficient Pumps

Switching to energy-efficient pumps can significantly reduce the energy consumption of wastewater treatment plants, thereby lowering their carbon footprint.

Real-Time Monitoring Systems

Advanced sensors and control systems can optimize the treatment process, reducing the need for chemicals and energy.

Steps for Implementing a Green Wastewater Management Strategy

Implementing an eco-friendly wastewater management strategy requires a comprehensive approach. Here are some steps to guide municipal managers:

Conduct an Environmental Audit

The first step is to assess the current environmental impact of your wastewater treatment facilities. This audit will identify areas for improvement and help prioritize actions.

Set Clear Objectives

Define what you aim to achieve with your green wastewater management strategy. Whether it's reducing energy consumption by a certain percentage or lowering chemical use, clear objectives will guide your efforts.

Choose Appropriate Technologies

Based on your audit and objectives, select the technologies that best fit your needs. Consider factors like cost, scalability, and ease of integration with existing systems.

Train Staff

Successful implementation requires a well-trained staff. Make sure your team understands the new technologies and practices, and how they contribute to environmental sustainability.

Monitor and Adjust

Once implemented, continuously monitor the performance of your new systems. Use real-time data to make necessary adjustments and optimize efficiency.

Engage the Community

Transparency is key. Keep the community informed about your efforts to make wastewater management more eco-friendly. Public support can be a significant asset in securing future investments in green technologies.

The Importance of Using NSF-Approved Products in Repairs

When it comes to repairs involving contact with drinking water, it's crucial to determine if your project requires products that meet NSF/ANSI 61-5 standards. The National Sanitation Foundation (NSF) develops public health standards and certification programs that protect the world's food, water, consumer products, and environment. NSF ensures that adequate testing is conducted for all products used in or around drinking water from source to tap.

Each product must undergo rigorous testing to receive NSF approval. The manufacturer's plant and quality assurance practices must also pass a thorough inspection. This rigorous certification process is invaluable to all parties involved, ensuring that products meet the highest standards for safety and quality.

Moreover, compliance with NSF standards ensures that you are also in compliance with the Safe Water Drinking Act (SDWA). The SDWA gives the EPA the authority to impose criminal and civil penalties on industries that are not in compliance. In 2014, enforcement efforts netted $163 million in penalties and fines, 155 combined years of incarceration for sentenced defendants, and $16 million in court-ordered project clean-ups.

For municipal managers, using NSF-approved products in repairs is not just a best practice; it's a legal necessity. It ensures that you are not the source or cause of drinking water contamination, either in the short or long term.

The Long-Term Benefits of Eco-Friendly Practices

Adopting eco-friendly practices in wastewater management is not just good for the environment; it's also good for the community and the municipal budget. Reduced energy consumption lowers operational costs, while cleaner effluent means healthier ecosystems and, potentially, fewer regulatory hurdles. Moreover, sustainable practices can enhance a municipality's reputation, making it more attractive for both residents and businesses.

In the long run, the benefits far outweigh the initial costs and challenges of transitioning to a green wastewater management strategy. It's an investment in the future—a future where both people and the planet can thrive. Municipal managers have the opportunity, and indeed the responsibility, to lead the way in adopting sustainable, eco-friendly practices. By doing so, they safeguard not just their immediate community, but also contribute to global environmental conservation efforts.

For more information on sealing leaks in wastewater systems...

The Critical Role of Wastewater Management in Public Health

Wastewater management stands as a cornerstone of public health. It's not just about pipes and pumps; it's about protecting communities from diseases and environmental hazards. When wastewater systems fail, the consequences are immediate and severe. One of the most alarming issues is Sanitary Sewer Overflows (SSOs), which can lead to backups into people's homes, including toilets and basements. These incidents are not just unpleasant; they are unhealthy and can result in significant costs for the city, as municipalities often bear the financial burden of repairs.

The Consequences of System Failures: SSOs and Backups

When SSOs occur, untreated sewage can overflow into rivers, contaminating water sources and posing a severe environmental risk. The immediate impact on residents is equally concerning. Imagine the horror of sewage backing up into your home. It's not just a foul-smelling inconvenience; it's a health hazard that exposes residents to harmful bacteria and other pathogens.

The EPA Steps In: What Happens When You're Sued

If your municipality's wastewater system is causing pollution due to SSOs or other failures, you can expect intervention from the Environmental Protection Agency (EPA). The EPA has the authority to sue municipalities for failing to manage wastewater effectively, and they often win these cases. Once that happens, the EPA will mandate a repair deadline. While this may sound daunting, it's worth noting that the EPA also provides funding assistance to help municipalities comply with these mandates.

A Cost-Efficient Approach to Mitigating Infiltration in Sanitary/Stormwater Systems

So, how can municipal managers effectively address these challenges without breaking the bank? One promising solution lies in the use of flexible polyurethane grout for targeted leak repairs. This approach promises a robust return on investment and can be broken down into three key steps:

Assessment: Inspect Lift Stations and Manholes

The first step in any repair process is a thorough assessment. Municipal managers must inspect lift stations and manholes to identify the system's weak points. Modern technologies, such as remote sensors and CCTV cameras, can assist in this process, providing real-time data on system integrity.

Identification: Locate and Prioritize Significant Leaks

Once the assessment phase is complete, the next step is to identify and prioritize leaks that require immediate attention. Not all leaks are created equal. Some may be minor and pose less immediate risk, while others could be catastrophic if not addressed promptly. Prioritizing these leaks ensures that the most critical issues are resolved first, thereby reducing the risk of SSOs and backups.

Targeted Repair: Utilize Flexible Polyurethane Grout

After identifying the most significant leaks, the final step is the repair process. Here, flexible polyurethane grout comes into play. Unlike traditional repair methods that often require extensive excavation and are labor-intensive, polyurethane grout offers a more efficient solution. It provides a precise, point repair approach that seals leaks effectively, ensuring a longer-lasting fix.

The Strategic Importance of Flexible Polyurethane Grout

For municipal managers overseeing stormwater and wastewater systems, embracing flexible polyurethane grout for leak repair is a strategic move. It's not just about ensuring infrastructure longevity; it's about safeguarding public health and achieving economic efficiency.

When you consider the potential costs of EPA intervention, including legal fees and mandated repairs, the return on investment for proactive maintenance becomes abundantly clear. Add to this the public health risks and environmental damage that come with system failures, and the case for a proactive, efficient approach to wastewater management is compelling.

The Time for Action is Now

If your municipality is under an EPA mandate, or if you're looking to avoid one, now is the time to act. Proactive management of wastewater systems is not just a regulatory requirement; it's a public health imperative. By adopting a cost-efficient approach that utilizes modern technologies like flexible polyurethane grout, municipalities can not only comply with regulations but also protect their communities and the environment.

Remember, wastewater management is not just an engineering challenge; it's a community responsibility. By taking timely, effective actions, municipal managers can fulfill this responsibility and ensure the well-being of their residents for years to come.

For more information on polyurethane leak seal grout...

Finally! We are at the last basic step. Now for the fun part - injecting the polyurethane resin. If you only have one pump, be sure to flush the pump out completely with AP Pump Flush before you pump the resin.

Check your safety gear - safety glasses are the most important item. Put on two pairs of latex gloves (so you can easily slip on a new pair once the outer pair gets sticky - it is tough to slide fresh gloves over sweaty hands.)

Turn the pump pressure all the way down. Squirt some resin into a cup to make sure the resin is clean. Start at the lowest port and slowly crack the valve. This is a two-man job (unless it is a small job). Have your partner slowly turn up the pressure as needed. Develop hand signals if the job site is noisy from a generator.

If the resin is flowing, keep pumping. If not, slowly adjust the pressure. Here comes the art of the game. You have two ways to control the flow of the resin. The pump operator can control the pressure and the valve operator can control the flow. The more experienced technician should control the show.

If I am on the valve, I will tell the pump operator how high to turn up the pressure. I will close the valve while this is being done. Once the pressure is up, I will control the flow of the resin from the valve. Very slowly cracking it open. This way, if I feel a shear start to form, I have a split second to close the valve.

If I am on the pump and the valve operator is less experienced, I will have them open the valve and I will control things with the pump pressure. I will turn it up and down as necessary. It is better to have the valve operator control the show in most circumstances since that person is closer to the action.

When to stop? My rule is this - if the resin is flowing, keep pumping. What if it starts to run out the face of the crack? Again, my rule is this - if more resin is going in than is coming out, keep pumping. You only have a few minutes to get the resin where it needs to be. As the resin reacts with water it starts to thicken up and becomes more difficult to push into the tighter recesses of the crack.

If raw resin comes out of the crack (amber resin, not a white foam), then it is time to stop. This resin will seal the crack, but at this point, there is not much water for it to react with and it will cure slowly. Stop injecting and move to the next port because it will be slow to seal. It is better to see white foam coming out of the face of the crack.

What happens if the foam travels past the next port - should you stop? No way. This is a home run. In most cases, the further along the face of the crack the resin travels, the deeper it is traveling as well. This gives you a better seal.

If too much resin is flowing out or washing out due to high water flow, you can use Spetec Oakum and a screwdriver to create a temporary plug (large or small) to give the resin time to react, expand, and seal the leak.

Congratulations, you have completed the 5 Steps of Crack Injection blog series!

5 Steps of Crack Injection - Overview
5 Steps of Crack Injection - 1. Drilling Holes
5 Steps of Crack Injection – 1. Drilling Holes (Continued)
5 Steps of Crack Injection – 2. Flushing Holes
5 Steps of Crack Injection – 3. Installing Ports
5 Steps of Crack Injection – 4. Flushing Cracks
5 Steps of Crack Injection – 5. Injecting Resin

Please feel free to call us at 404-618-0438 and ask any questions. 

Want in-depth info on crack injection procedures and products?

All cracks that aren’t actively leaking at the time you are sealing them need to be flushed out with water. Flushing them gives you several advantages:

1. Lets you know whether your drill holes have intersected the crack.
2. Flushes dirt and debris out the surface of the crack so your resin has a cleaner internal surface to bond to.
3. Reveals how far you can expect the resin to travel so you know if your drilled holes are close enough together.
4. The water will help open up tight cracks that the thicker resin may not otherwise have been able to penetrate.
5. Ensures that the resin has sufficient moisture to react with.

Start at the lowest point in the crack and flush clean water through your injection ports. It is best to have at least two pumps onsite. One for pumping water and one for pumping resin. Use the same type of high-pressure pump that you use for resin. You can use a smaller pump if you like, as long as it is capable of generating between 2,800 and 3,500 p.s.i.

BE CAREFUL when flushing tight cracks! The low viscosity of water coupled with the high pressure of the pump can shear the concrete. The water can push into tight cracks and capillaries and all at once split your concrete. You can also shear concrete with resin, but it is more likely to happen with water because you are testing your crack and trying to open it up.

Always start every port with the lowest pump pressure and slowly turn it up as necessary. Also, slowly crack the valve open when you are first injecting water or resin. This is a critical moment in the process. If you forget to turn the pump pressure down after each port, you risk blasting high pressure into the port all at once which can result in shearing of the concrete or blowing out the port.

Keep injecting water as long as it is flowing through the port and moving further and further along the crack. Monitor the water coming out of the crack. Notice if it is clean or cloudy. Keep injecting until it comes out clean.

If the project is big enough, you can have one technician injecting water and another injecting resin right behind. Personally, I like to do both steps myself. That way I know what to expect when injecting the resin. In any case, keep the water pump nearby. Many times you will have to pop another hole in the wall here and there to completely seal the crack with resin.

5 Steps of Crack Injection - Overview
5 Steps of Crack Injection - 1. Drilling Holes
5 Steps of Crack Injection – 1. Drilling Holes (Continued)
5 Steps of Crack Injection – 2. Flushing Holes
5 Steps of Crack Injection – 3. Installing Ports
5 Steps of Crack Injection – 4. Flushing Cracks
5 Steps of Crack Injection – 5. Injecting Resin

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