He has a B.S. in Structural Engineering from University of California, San Diego and Ph.D. in Civil Engineering from Northwestern University. His research interests are in reinforced and prestressed concrete; reuse of waste products as construction materials; high performance concretes; advanced mechanical testing of materials; and application of computer vision systems to displacement field measurements. Dr. Jansen's teaching interests include civil engineering materials, reinforced concrete design, prestressed concrete design, and advanced civil engineering materials laboratory. He serves as the Chair of the ACI Committee 555 on Recycled Materials and is active in various additional committees of ACI.