David A. Lange has been on the faculty at the University of Illinois at Urbana- Champaign since 1992. He teaches in the area of civil engineering materials, repair of civil structures, systems engineering, and engineering economics. His research focuses on the behavior of concrete materials, characterization of microstructure of porous materials, and water transport in repair and masonry materials. Lange is a fellow of the American Concrete Institute and a fellow of the American Ceramic Society. Lange earned his M.B.A. degree from Wichita State University in 1984 and his Ph.D. degree in 1991 from Northwestern University. The Lange family have several Valpo connections: his mother, Carol, is a Valpo graduate (1951); his father, Harvey, took some Valpo summer courses (while courting Carol); his wife, Risë, is a Valpo graduate (elementary education, 1981); and his daughter, Abby, is a current Valpo student.