Considering the type of corrosion is key to choosing the right manhole rehabilitation system. Since a plethora of options are available in the manhole rehabilitation industry, including but not limited to epoxies, cementitious liners, polyurethanes, and hybrid epoxies, diagnosing the type of corrosion at fault will often lead to the most cost-effective solution.
For example, using an epoxy to rehabilitate a manhole that does not have high H2S is costly, and it may be overkill. in contrast, using a cementitious liner in an area with has a great deal of I&I is not a responsible choice since I&I will eventually erode a cementitious material liner.
Carefully considering of presence and type of corrosive factors is the first step in identifying the type of rehabilitation material that should be used.
By: Silvia Caputi, CLADLINER Marketing Coordinator