Lined Manholes and Maintenance Holes
Enhanced Durability for Critical Infrastructure
In today’s demanding infrastructure environments, manholes and maintenance holes must withstand exposure to corrosive elements, chemicals, and moisture. Lined manholes and maintenance holes have emerged as a vital solution to protect these access points, extending the lifespan of underground systems while reducing maintenance costs. Engineered Containment offers cutting-edge solutions for lined manholes, engineered to withstand harsh conditions in various industries.
Why Choose Lined Manholes?
Manholes are key access points for underground systems such as sewers, stormwater drains, and utility lines. However, these structures are often exposed to highly corrosive substances that can degrade unprotected concrete over time. Lined manholes incorporate durable synthetic liners like HDPE, PVC, and PP, offering superior protection against chemical attack, moisture infiltration, and abrasion.
Common applications include:
Sewer Systems: Lined manholes are essential for maintaining the integrity of sewer infrastructure, preventing corrosion from wastewater and hydrogen sulfide gas.
Stormwater Systems: In regions with high rainfall or aggressive runoff, lined maintenance holes protect against water damage and chemical erosion.
Industrial and Chemical Plants: Lined manholes are indispensable in environments where exposure to harsh chemicals can quickly degrade unlined structures.
Lined Maintenance Holes for Longevity
Maintenance holes are a critical access point in underground infrastructure that must endure a wide range of environmental and mechanical stressors. Engineered Containment’s lined maintenance holes are designed to protect against corrosion while also providing long-term structural integrity.
Our lined maintenance holes offer:
Chemical Resistance: Lined systems resist the harmful effects of chemicals, preventing premature failure and the need for costly repairs.
Waterproofing: The synthetic liner acts as a barrier to moisture, which is especially important in areas prone to flooding or high groundwater levels.
Abrasion Protection: In high-flow areas, lined maintenance holes withstand the wear and tear caused by water and debris movement.
Advantages of Lined Manholes and Maintenance Holes
Extended Service Life: Lining manholes and maintenance holes protects them from corrosive damage, greatly extending their service life compared to unlined alternatives.
Reduced Maintenance Costs: Lined systems require fewer repairs and less frequent replacement, leading to significant long-term savings.
Custom Solutions: Engineered Containment provides tailored lining solutions, ensuring the best material and design for each specific project.
Installation Expertise: Our team brings decades of experience in installing lined manholes and maintenance holes across North America, delivering reliable and efficient results.
Why Embedded Concrete Liners Are the Preferred Choice
When it comes to long-lasting protection for underground infrastructure, embedded concrete liners such as AGRU UltraGrip and Solmax StudLiner are the preferred solutions. These liners are designed to form a permanent bond with concrete, providing superior resistance to corrosive environments typically found in manholes, maintenance holes, and other critical access points.
The Embedded Advantage
AGRU UltraGrip and Solmax StudLiner are both structured with anchor studs that embed into the concrete during the casting process. This mechanical bond ensures that the liner remains firmly attached, even in the harshest underground conditions. The benefits of using embedded liners include:
Increased Durability: The physical bond between the liner and concrete prevents separation, even when exposed to aggressive chemicals, gases, and moisture over time.
Enhanced Protection: Embedded liners offer a seamless protective barrier, reducing the likelihood of leaks and minimizing the risk of infrastructure failure.
Epoxy: A Riskier Alternative
Some projects opt for epoxy coatings to protect concrete surfaces in underground infrastructure. While epoxy can offer temporary protection, our experience has shown that it is prone to delamination—especially in environments where water infiltration and movement are prevalent. Over time, water can penetrate small cracks or weaknesses in the epoxy, leading to peeling or blistering.
This is a significant concern in underground systems where continuous exposure to moisture, fluctuating temperatures, and chemical corrosion is unavoidable. Once delamination occurs, the exposed concrete is highly susceptible to rapid deterioration, potentially leading to costly repairs or replacements.
Why Choose AGRU UltraGrip or Solmax StudLiner?
In contrast to epoxy, AGRU UltraGrip and Solmax StudLiner offer reliable, long-term protection for critical infrastructure:
Permanent Bond: The studded design ensures the liner is permanently anchored to the concrete, eliminating the risk of peeling or delamination.
Superior Chemical Resistance: These liners provide exceptional resistance to a wide range of chemicals, making them ideal for wastewater treatment plants, sewer systems, and industrial facilities.
Waterproofing and Durability: Embedded liners offer superior waterproofing and abrasion resistance, reducing the risk of water infiltration and structural degradation.
At Engineered Containment, we highly recommend using embedded concrete liners like AGRU UltraGrip and Solmax StudLiner for underground infrastructure projects. Their proven performance in preventing delamination and ensuring long-term durability makes them the industry-standard choice for lined manholes and maintenance holes.
Partnering with Engineered Containment
At Engineered Containment, we understand the unique challenges posed by underground infrastructure. Lined manholes and maintenance holes are designed to provide superior protection against chemical and environmental factors. With engineering permits to practice across multiple jurisdictions in North America, we are equipped to meet the needs of your next project.
