Manhole Rehabilitation: Cementitious, Epoxy, and Polyurea Compared
There’s a specific kind of damage that happens inside a sewer manhole that most people never think about, mostly because they’d rather not. Hydrogen sulfide gas, generated by the bacteria living in wastewater, converts to sulfuric acid on exposed surfaces, and that acid eats through concrete in a way that’s genuinely aggressive. A manhole that …
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