Technical Division Staff Bios

Mike Hernandez, PE, FACI; Technical Director

Mike is Chair of ACI Committee 131 Building Information Modeling, a member of ACI Committees 90-07 TAC Productivity and Constructability, 130 Sustainability of Concrete, 134, Concrete Constructability, 207 Mass and Thermally Controlled Concrete, 302, Construction of Concrete Floors, 305, Hot Weather Concreting, 308, Curing Concrete, 347, Formwork for Concrete, E703, Concrete Construction Practice, C640 Craftsman Certification and Joint ACI-ASCC Committees 117, Tolerances, and 310, Decorative Concrete. He is a former president of the ACI South Florida Chapter. Hernandez holds an MBA from the University of Florida, an MSCE and BENVD from the University of Colorado, and was a Mechanical Engineering Major at the Massachusetts Institute of Technology. He is a licensed P.E. in Florida and Colorado, and a Certified General Contractor in Florida. An FAA licensed drone pilot. He is also a U.S. Green Building Council, LEED Green Associate and a Design Build Certified Professional.

Prior to this position, Hernandez worked as a project engineer for M. A. Mortenson, held several roles for Baker Concrete Construction, was a senior project manager for Parsons Construction Group, and most recently was a project manager for All Phase Concrete.

Projects he has supervised include the 3000-ft. I-40 White River Bridge east of Little Rock, AR; formwork design engineer for 83, 52 and 51-story high-rise buildings; bridge spans over railroad and US-1, allowing aircraft to land on a sloping runway at the Ft. Lauderdale Airport; a 9,000-ft bridge for a heavy rail rapid transit system; two terminal expansions at Miami International Airport; concrete frame at the Denver Broncos Stadium and numerous other tilt-up and commercial structures.

As the ASCC Technical Director Mike oversees the operations and services for the technical content of American Society of Concrete Contractors (ASCC), Decorative Concrete Council (DCC), and Concrete Polishing Council (CPC). 

Jim Klinger; Concrete Construction Specialist

Jim is a member of Joint ACI-ASCC Committee 117, Tolerances; ACI Committees 134, Concrete Constructability, and 318, Structural Concrete Building Code; and ACI Subcommittee 318-A, General, Concrete, and Construction. Klinger received his master’s degree in structural engineering from the University of Maryland, College Park, MD. He received the 2022 ACI Roger H. Corbetta Concrete Constructor Award and the 2020 ACI Construction Award as co-author of “Constructability of Embedded Steel Plates in Cast-in-Place Concrete.”

Jim’s experience includes 44 years in concrete including 28 years as project manager and estimator with The Conco Companies where notable projects included the San Francisco-Oakland SAS Bay Bridge and the 1072-ft. (supertall) Salesforce Tower in San Francisco.. He also worked for John A. Martin & Associates, Martin, Middlebrook & Louie, Inc., KCE Structural Engineers, PC, and Miller & Long, Inc. in construction administration, inspection, and field engineering.

As Concrete Construction Specialist, Jim answers the ASCC Hotline, writes a monthly VOICE column, co-chairs the Technical and Constructability Committees, co-authors articles and Position Statements, and reviews ACI documents on construction for the ACI Construction Liaison Committee (CLC). Jim is also the ASCC representative on ASCC Company Certification and manages the ASCC Contractor Forum.

Clark Branum; Decorative Concrete and Polished Concrete Specialist

Clark is the Chair of Joint ACI-ASCC Committee 310 Decorative Concrete and is a member of ACI 310-OJ Polished Finishes and ACI C641-00 Decorative Concrete Finisher Certification. He is a judge for decorative concrete for the 8th annual ACI Excellence in Concrete Construction Awards to be held at the 2022 Fall ACI Convention. He was inducted into Concrete D├ęcor’s Decorative Concrete Hall of Fame in 2012.

After 15 years as a concrete finisher, Clark worked as a superintendent and estimator for Greater Seattle Concrete, as technical director for Brickform Products and L.M. Scofield Co., as training and specification manger for Diamatic USA (acquired by Husqvarana), as technical consultant to Sundek Products, and as owner of Advanced Concrete Coatings. Clark was a lecturer at California State University-Chico for four years in the Concrete Industry Management Program (CIM) for CIM 364 Architectural Concrete.

At ASCC Clark serves as both the Decorative Concrete Specialist and Polished Concrete Specialist. He responds to the DCC and CPC Hotlines, writes a monthly VOICE column, and serves as liaison to the DCC and CPC Council boards.

Joe Whiteman, Director of Safety Services

Joe has met the requirements of the Board of Certified Safety Professionals as a Certified Safety Professional (CSP-33942) and a Certified Construction Health and Safety Professional (CHST-2734). Joe is a member of the American Society of Safety Professionals (ASSP) and has completed the AGC Executive Safety Management course along with numerous OSHA training courses.

Joe has 20 years of safety experience for Turner Construction, Barnhart-Heery, and Morley Builders Inc., where he amassed his wide range of concrete construction safety experience. Joe has a breadth of knowledge and experience from large slab on grade industrial and infrastructure, multi residential hi-rise, parking structures, major civic structures, healthcare, education and seismic retrofit and repair. Joe also brings firsthand safety knowledge of working with different types of form systems, concrete delivery systems, tower cranes as well as high end architectural finishes and processes.

As Director of Safety Services, Joe oversees all safety and risk management activities. He provides safety bulletins, newsletters, training, and other direction for ASCC members. Joe serves as liaison to the Safety & Risk Management Council (SRMC) Advisory Board. He leads the Safety Training Assessment & Recognition Program (S.T.A.R.) which is a benchmarking and improvement tool for the concrete construction industry that dramatically improves safety performance and provides on-site safety program assessments and mock OSHA inspections for members. Joe leads the annual Safety Summit which is co-sponsored by the Tilt-Up Concrete Association (TCA), the American Concrete Pumping Association (ACPA) and, the monthly ASCC Safety Roundtables.

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American Society of Concrete Contractors
2025 S. Brentwood Blvd.
Suite 105
St. Louis, MO 63144
314-962-0210
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