Programa de Engenharia Civil COPPE/UFRJ Presentation Cement Based Composites a Solution to Sustainable Infrastructure Materials Barzin Mobasher School of Sustainable Engineering and the Built Environment Science Without Borders Visiting professor Arizona State University Summary During the past few years the concerns for Sustainable design of structures has become a main driver for development of new materials and design methods. Traditional design methodologies ignore tensile capacity of concrete altogether, treat the cracking and associated durability problems as an afterthought, and are inherently inefficient, wasteful, and expensive. Innovative fiber reinforced concrete materials when designed using fundamental aspects of mechanics of composites, and materials science of durability offer efficient and sustainable structural systems. The presentation addresses areas of research geared toward developing sustainable construction systems using fiber reinforced concrete materials which include the following tracks: New materials, testing procedures, and applications for fiber reinforced concrete to address improved ductility-durability measures. Examples include early age properties, shrinkage cracking, and correlation of ductility with durability. Testing, analysis, and design guidelines to obtain material models that can be directly integrated within structural analysis software. Both material and structural design can then concurrently accomplished. Analytical closed form solutions are instrumental in design and analysis of composite systems such as beams, slabs, retaining walls, and buried structures. Solutions for sustainable development of infrastructure systems using blended cements, thermal energy considerations of concrete buildings, blast, impact, and high ductility required designs, use of natural fibers, and statistical process control. Materials with higher strength, ductility, and stiffness are addressed using a combination of alternative ingredients, production technology, and life cycle costs of structural systems. Biosketch Barzin Mobasher is Professor of Structural Materials at the Department of Civil and Environmental Engineering at Arizona State University. He has more than twenty five years of research experience in construction materials and experimental mechanics, and has published more than 150 papers in various journals and conference publications. He obtained his Ph.D. in 1990 from Northwestern University and joined Arizona State in 1991. His research interests include modeling the mechanical properties of cement based composite materials, structural testing, experimental mechanics, and durability of construction materials. He is a member of American Ceramics Society, American Concrete Institute, and American Society of Civil Engineers.