Rehabilitation of deteriorated manhole and other sewer structures

摘要: A new inner passageway through a pre-cast concrete structure damaged by corrosion may be formed stackable inserts of polymer concrete. The stacked in the old such that an surface forms structure. grout poured between outer and forming passageway. surfaces have superior resistance to corrosive acids need for future repair is greatly reduced. Suitable structures rehabilitation include utilized wastewater systems, including manholes other similar structures. In this manner, do not removed during rehabilitation.