Case Studies - Summer 2021

Case Studies - Summer 2021

Process successful in rehabilitating deteriorated manholes

Problem:

Hydrogen sulfide is a corrosive compound which, over time and combined with heavy inflow and infiltration, deteriorates manholes. That was the case for several manholes in Richmond, California.

Solution:

Before the epoxy liner could be installed, extensive surface preparation and repairs were needed. The entire surface of each wall was resurfaced using hydraulic cement. In manholes where bricks were...

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