Lecture Time：26/01/2026 10:00-11:00

Title: Foam concrete for energy absorbing applications

Lecturer: Prof. David A. Lange

Lecturer's Profile: Prof. Em. David A. Lange joined theDepartment of Civil and EnvironmentalEngineering at the University of Illinois atUrbana-Champaign in 1992. His researchareais concrete materials,performancepropertiesmicrostructure and durability.During 2005-2020, he served as Director ofthe Center of Excellence for AirportTechnology, a research center sponsored bythe O'Hare Modernization Program and theFederal Aviation Administration. He is aFellow of the American Ceramic Society. Heis also a Fellow of the American ConcreteInstitute and recipient of its Wason Medal forMost Meritorious Paper in 2003, 2018 and2020. He served as ACI President in 2018-19.

Abstract: Advances in cement and concrete materials are opening thedoor to new applications. Novel foamed materials can beused to make extremely lightweight building products andengineered materials for absorbing impact. One suchapplication is using foam in pavement systems for arrestingairplanes that overrun the taxiway. We have studiedmicrostructure of foamed materials using x-ray computedtomography and neww mechanical tests. We are usingadvanced computer models to capture the crushingbehavior of foams. Foams can be an attractive opportunityto use recycled waste products. Recycled materials areemphasized as part of sustainable construction practices,and we are learning how to use the fine particle fractionthat is usually discarded. The recycled fine particles can beused for controlled low strength materials. These advancesare examples of the many new opportunities for concretematerials that will open the door to new applications and
construction methods

Thanks to Prof. David A. Lange for the wonderful lecture!