Everything You Need To Know About Manhole Repair

Comments Off on Everything You Need To Know About Manhole Repair

Click to Expand Manholes are essential to any urban infrastructure, providing access to underground utilities such as water, sewage, and electrical systems. However, they can deteriorate, crack, or collapse over time due to constant exposure to heavy traffic, weather conditions, and corrosive materials. These failures can cause accidents, traffic disruptions, and even sewer backups, resulting […]

Leaking Pipe Intrusion Sealed

Comments Off on Leaking Pipe Intrusion Sealed

Water leaking around pipe intrusions can be stopped with polyurethane grout.  In this instance, a hole was drilled at an angle to reach the annular space in-between the pipe and the concrete.  SealGuard II, a dual component polyurethane grout, requires a static mixer to mix properly.  The mixer gets inserted into the drilled hole, then […]

Directional Drilling Water Control

Comments Off on Directional Drilling Water Control

When water is encountered during directional drilling, the most common method to try and stop it is pumping concrete. However, if there is a large volume of water, the concrete simply washes away and doesn’t seal the leak.  Concrete also shrinks as it dries, so new leak paths are formed.  In this instance concrete was […]

Joining and Sealing Precast Concrete

Comments Off on Joining and Sealing Precast Concrete

Click to Expand The primary purpose of adding sealant to the joints of precast concrete is to establish an extra layer of protection between the blocks or segments. This will prevent water or dirt from entering a construction joint. Common structures requiring joint sealants are catch basins, culverts, manholes, sumps, and trenches. Liquids take the […]

Key Considerations in Pre-Cast Concrete Crack Injection

Comments Off on Key Considerations in Pre-Cast Concrete Crack Injection

When it comes to pre-cast concrete structures, durability and strength are essential. However, even the most robust structures can experience damage over time due to weathering, impacts, and other factors. Thus, it is vital to assess the damage and determine the most appropriate repair method to restore the structure to its original strength and stability. […]

Step-by-Step Manhole Rehabilitation

Comments Off on Step-by-Step Manhole Rehabilitation

Manholes are an essential component of an area’s sewage system, serving as maintenance access points and providing structural support for the pipes. They are also crucial to the system’s proper operation, allowing for wastewater collection, transport, and treatment. However, manholes can deteriorate and become damaged over time. The most common causes of manhole damage are […]

Horizonal Drilling and Hyperflex Grout

Comments Off on Horizonal Drilling and Hyperflex Grout

To install a pipeline underneath an interstate, a horizontal directional drill was used. However, the drilling discovered that the area consisted of large voids / karst zones. The pipeline itself needs to have a solid foundation to rest on. To fill the voids, polyurethane grout was injected into the problem areas. The grout used was […]

Tags: , , , , , ,

Single Component Polyurethane Grout Injection

Comments Off on Single Component Polyurethane Grout Injection

Smaller water leaks in structures can be sealed by injecting single component polyurethane grout into the leak paths. The grout being used is Hyperflex, manufactured by SealGuard, Inc.  Being a single component grout, Hyperflex is pre catalyzed and only needs 2% moisture to start reacting (foaming).  The expanding foam will fill the voids that is […]

Tags: , ,

SealGuard II Polyurethane Grout Injection to Stop Water

Comments Off on SealGuard II Polyurethane Grout Injection to Stop Water

The seam on this dam tunnel was actively leaking water.  SealGuard II, a dual component polyurethane grout, was injected into the leak path to seal the water flow.  With just a drill, a dual component caulking gun, and some SealGuard II, a water leak of up to 50 gallons per minute can be stopped.  SealGuard […]

Tags: , , , , ,

Concrete Floor Seeping Water

Comments Off on Concrete Floor Seeping Water

This new construction concrete floor was leaking ground water at a joint.  Polyurethane grout was pressure injected through mechanical packers to seal off the flow.  The grout was Hyperflex, a single component moisture activated material that is manufactured by SealGuard, Inc.  Hyperflex is pre-catalyzed and in NSF-61 approved for potable water.  The grouting was done […]

Tags: , , , , , ,