Project Description

Large diameter concrete pipes commonly used in the transfer of water and waste water that have been in use for extended periods of time are starting to exhibit structural distress due to corrosion of both prestress and mild reinforcing steel. The majority of the failure mechanisms have occurred on the outside surface of the pipe. This failure mechanism has forced owners to excavate the pipe and perform insitu repairs or replace the pipe. Both conditions are time consuming and expensive. Structurally reinforcing the pipe internally with FRP has proven to be a cost effective and time saving method. This paper will provide a brief overview of the methods of testing the pipe for local failures and the design and repair using carbon fiber, CFRP

Myles A. Murray, P.E., FACI
Chairman and Founder
Restruction Corp.
P.O. Box 343
Sedalia, Colorado 80135
United States