Dr. Chen is an engineer specialized in the field of pavement and construction materials engineering. He led several research projects for New Mexico, Iowa and California Department of Transportation. His work has led to publications in prestigious journals and conferences. He also serves as committee member and referee for several peer-reviewed journals and international conferences. Dr. Chen performs extensive research on the epoxy asphalt and polymer concrete development and design, while he also helps in consultations about orthotropic bridge and concrete bridge deck overlay material mix design and its evaluation. He is carrying out research collaborations with Auckland Harbor Bridge Alliance, National Center for Asphalt Technology and FHWA Fairbank Highway Research Center.