Dr. Brian Pailes Presents Electrochemical Treatments to Historical Structures at ICRI MN Chapter Spring Technical Session
Challenges Preserving Historical Structures
Historical structures present many unique preservation challenges, especially with regard to reinforced concrete corrosion. Continual structural wear and tear eventually expose the embedded steel to chlorides or carbonation, and the passive layer in the surrounding alkaline concrete environment begins to break down. Thus, the onset of corrosion and deterioration sets in.
When it comes to historical structures, simply tearing down a deteriorated element and replacing it with modern materials is not an acceptable option. However, there are effective solutions that can restore, strengthen, and preserve the architectural integrity and aesthetic aspects for new generations to appreciate.
How to Restore a Historical Structure
Electrochemical treatments, such as chloride extraction and realkalization, lower the corrosive chloride content and/or increase the pH level located in the surrounding concrete. The treatment re-passivates the steel reinforcement and improves the durability of the reformed passive layer. This, in turn, resets the effects of time, stops corrosion, and extends the service life of a historical structure.
Dr. Brian Pailes (Ph.D., P.E., NACE CP3) of VCS Engineering has extensive experience in the field of non-destructive evaluation (NDE) performed on a wide variety of different structures.
Dr. Pailes received his Ph.D. from Rutgers University, M.S. at the University of Virginia, and B.S. at Northeastern University. He is a registered professional engineer and serves on a number of corrosion and non-destructive testing committees for TRB and ASNT. Currently, Dr. Pailes is the Principal Engineer for VCS Engineering, Inc. in Tampa, Florida. Dr. Pailes has worked on bridges throughout the United States and was a part of the Long-Term Bridge Performance Program funded by FHWA. His area of expertise includes cathodic protection, non-destructive testing, concrete deterioration, reinforced concrete corrosion, and concrete materials.
For more information about Electrochemical Treatments or other services VCS provides, call your local VCS Office today!