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...