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Center of Excellence for Nonmetallic Building Materials Announces New Executive Director

NEx: An ACI Center of Excellence for Nonmetallic Building Materials has hired Jerzy Zemajtis as Executive Director, replacing Dr. David A. Lange. He will oversee all NEx operations and initially focus on identifying and recruiting new members interested in advancing nonmetallic building materials.

Jerzy has over 30 years of experience in materials testing, structural design, repair and rehabilitation, corrosion condition assessment, and service life modeling of concrete structures. His work includes the development of testing programs for numerous major structures around the world and designs for composite and prestressed concrete bridges in the U.S., Canada, and Poland. Prior to joining NEx, Jerzy was a staff engineer for the American Concrete Institute and organized the first-ever ACI International Code Summit in 2021. He received his PhD in construction materials from Virginia Tech, Blacksburg, VA, and is a licensed professional engineer in Washington State, and the province of British Columbia, Canada.

“NEx looks forward to driving education, research, and standards adoption that bring nonmetallic building solutions to the forefront of the construction industry,” said Jerzy Zemajtis, Executive Director, NEx: An ACI Center of Excellence for Nonmetallic Building Materials. “I’d like to thank Dr. Lange for his work in launching this center of excellence and bringing onboard our founding member, Aramco. I’m eager to continue our search for additional partners with a shared interest in the specification, procurement, and installation of nonmetallic materials.”

In addition to new member recruitment, Jerzy will focus on establishing initiatives to grow awareness and technology adoption related to nonmetallic building materials. To learn more or to get involved with NEx, visit or contact


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