Estimating and Extending the Remaining Useful Life of Large Diameter PCCP Mains

摘要

Large diameter prestressed concrete cylinder pipe (PCCP) mains often form vital pieces of infrastructure for medium to large water and wastewater utilities. Much of the underground infrastructure in the U.S. has been buried and forgotten about and, despite their criticality, PCCP mains often fallen into this category. This paper focuses on providing a leading edge (but practical) approach to estimating remaining useful service life of these important assets. It also presents a method to extend their service life through state-of-the-art risk management practices.