About the author ⁄ Mark F. Chrzanowski, P.E.
Mark F. Chrzanowski, P.E. is a Principal Structural Technologist for CH2M HILL and is currently serving as an expert in concrete materials to the Panama Canal Authority (ACP). Mark also is a member of ACI and serves on several technical committees. He may be reached at mchrzano@ch2m.com.
