Concrete Conference Instructors

Jeff Coleman

Jeff Coleman

Attorney PE, FACI
The Coleman Law Firm, LLC

Attorney Jeffrey W. Coleman, PE, FACI, focuses his practice on construction law, professional liability defense, concrete construction and general business law, including insurance and coverage. Mr. Coleman has been a licensed structural engineer since 1977 and a practicing attorney since 1984. Coleman provides clients with a single resource for both legal and risk management issues. He has represented design professionals in all matters of their business, including defense of multimillion-dollar design defect and negligent construction administration claims. He is currently vice president of the American Concrete Institute and the only attorney who has been named a Fellow of that organization (FACI).

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Charles Hanskat

Executive Director and Technical Director
American Shotcrete Association

Charles Hanskat, P.E., F.ACI, F.ASCE, F.FES is executive director and technical director for the American Shotcrete Association. He is a licensed professional engineer. Hanskat has been involved in the design, construction, evaluation, and repair of environmental concrete, marine, building, and shotcrete structures for 40 years. Hanskat has also been very involved in ACI, ASTM, ASA, and AREMA committees related to shotcrete and environmental concrete structures.

Max Levin

Max Levin

Senior Project Manager
James McHugh Construction Company

Max Levin is a senior project manager with James McHugh Construction Co. and is currently managing all concrete work for the 96-story Vista Tower in Chicago. The Vista Tower will encompass over 400 luxury residences, a five-star hotel, parking, and retail space of over 1.8 million square feet. Max’s wide range of experience also includes hospital and healthcare facilities, infrastructure and road work, office towers, and special use projects including the Battle Stations 21 training simulator at Naval Station Great Lakes. Max holds a master’s degree in civil engineering from the University of Illinois.

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Tyler Ley

Oklahoma State University

Dr. Ley has over 18 years’ experience in consulting, contracting, government, and academia. He has received numerous awards, including the Halliburton Excellent Young Teaching Award, the ACI Walter P. Moore Faculty Achievement Award in 2014, the Researcher of the Year Award from the College of Engineering, and the OSU Regents Research Award. He was named Outstanding Professor at a Research University by the Oklahoma Foundation of Excellence in 2018.  

Warren McPherson, Jr.

Performance Concrete Design, LLC

McPherson is a graduate of Southeast Missouri State University with a major in mathematics, and a minor in chemistry. He has been involved with the design, placement, and manufacture of concrete for over 50 years. Has been a member of ACI since 1988, became a Fellow in 2013 at the Minneapolis convention, and is a voting member of ACI 302, ACI 211, ACI 332, and ACI C640. McPherson is also an instructor and examiner for ACI’s Flatwork certification course. His work has been published in Concrete Construction Magazine, and Concrete International, including an article titled "If The show Must Go On," which deals with freeze resistant concrete projects, in the March 2003 issue of Concrete International.

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David Sanders

Greenwood Department Chair and Professor
Iowa State University

David Sanders is a Greenwood Department Chair and professor at Iowa State University where he started on July 1, 2018. Professor Sanders’ emphasis is the performance of concrete structures with an emphasis in the seismic design of bridges. His research has included analysis as well as large-scale cyclic component experiments and shake table work. His service record is extensive, including membership in the American Concrete Institute (ACI), 318 Main Committee and chair of Committee 318E, Section and Member Strength. This subcommittee is in charge of Chapters 21 to 23 of ACI 318, Building Code Requirements for Structural Concrete.

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Frank Townsend

Vice President of Operations East
Superior Gunite

Frank Townsend is the V.P. of operations east for Superior Gunite. Frank is an active member of American Concrete Institute (ACI) Committee 506, Shotcreting, and the American Shotcrete Association (ASA).

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Mary Vancura

Beton Consulting Engineers, LLC

Dr. Vancura has been working with maturity and thermal modeling in her consulting practice on numerous bridges and other projects throughout the United States.

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Marcus von der Hofen

Chief Operating Officer and Vice President
Coastal Gunite Construction Company

Marcus von der Hofen is the chief operating officer and vice president of Coastal Gunite Construction Company. Marcus is very active in the shotcrete industry through participation in the American Shotcrete Association (ASA) and the American Concrete Institute (ACI).

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Michelle Wilson

Director of Concrete Technology
Portland Cement Association

Michelle L. Wilson, FACI, is director of concrete technology at the Portland Cement Association (PCA) in Skokie, IL. She has over 20 years of experience relating to concrete materials, specifications, performance, troubleshooting, and repair. She is responsible for the development, content, and delivery of PCA’s educational programs and products covering the entire spectrum of concrete technology, and is co-author of PCA’s Design and Control of Concrete Mixtures. She has given numerous workshops and presentations around North America including the World of Concrete, International Builder’s Show, and CONAGG/CON-EXPO.