Municipal managers and administrators may be interested in the ways in which polyurethane grout can be strategically applied to different structures within the wastewater system—manholes, pipes, and lift stations—to ensure efficient, cost-effective operations.

Precast Joints in Manholes

Alchatek’s Spetec PUR GT380 polyurethane grout offers a straightforward solution for sealing precast manhole joints, curing into a gel or foam to ensure durable, long-term sealing. Its single-component, low-viscosity nature allows for easy penetration into joints without the need for mixing, streamlining the installation process to just four steps: drilling holes, flushing the holes, installing the injection port, and injecting the resin. The resilience of Spetec PUR GT380 in harsh sewer conditions assures confidence in the workmanship, while effectively preventing financial losses for clients due to leaking manhole joints.

Pipe Penetrations

When sealing pipe penetrations, whether for manholes, electrical conduits, or gas lines, it is essential to establish a durable, watertight seal. To achieve this, Spetec Oakum is soaked a leak seal grout such as Spetec PUR GT380, and then packed into the annular space around the pipe, creating a tight gasket to halt immediate leaks. Following the gasket formation, further reinforcement is provided by injecting leak seal grout behind the gasket using an injection needle, ensuring a robust and enduring watertight barrier.

Lift Stations

Lift stations are critical for transporting wastewater from lower to higher elevations. Leaks in these structures can cause malfunctions and lead to unsanitary conditions. Applying polyurethane grout in lift station leaks prevents water from entering or exiting the structure in unintended ways. The quick curing time of the grout minimizes downtime, a crucial factor in maintaining the continuous operation of these essential facilities.

Key Takeaways

• Polyurethane grout provides robust, flexible seals for manholes, contributing to reduced groundwater infiltration.
• It offers a long-lasting solution for pipe penetration leaks, enhancing structural stability and service life.
• In lift stations, polyurethane grout ensures proper functioning by sealing against leaks.

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