Low CO2 Concrete Development/Emissions Reduction

Moderator(s): Farshad Rajabipour

Can We Use Marginal and Unconventional Fly Ashes in Concrete

• Christopher Shearer, Associate Professor, Civil and Environmental Engineering, South Dakota School of Mines and Technology

Reducing Embodied CO2 with Portland Limestone Cement

• Jason Weiss, The Miles Lowell and Margaret Watt Edwards Distinguished Chair in Engineering, Oregon State University

Can I Use ASTM C595 Type IL Portland Limestone Cement (PLC) Instead of ASTM C150 Cements?

• Kyle Riding, Professor of Civil & Coastal Engineering, University of Florida

Bios

Christopher Shearer is an associate professor of Civil and Environmental Engineering at the South Dakota School of Mines and Technology. His research focus is on developing innovative materials for incorporation into a future sustainable infrastructure. He also researches improved pedagogical approaches for engineering with a concentration on active and service learning. He has worked as a structural engineer and consults for industry on materials-related issues. He serves as the faculty advisor at South Dakota Mines for the Concrete Canoe Team and the American Society of Civil Engineers (ASCE). He also serves on three American Concrete Institute (ACI) committees and as the president of the ACI Dakota Chapter.

Jason Weiss is the Edwards Distinguished Chair in Engineering at Oregon State University. Previously, he served as the Head of the School of Civil and Construction Engineering (2015-2020) and as a faculty member at Purdue University for over 16 years. He earned a B.A.E. from the Pennsylvania State University and a Master of Science and doctoral degree from Northwestern University in 1997 and 1999 respectively. He is actively involved in research on cement and concrete materials specifically focused on early age property development, concrete durability, and concrete sustainability. Weiss has authored more than 425 publications with more than 240 peer-reviewed journal articles. He is also a primary author of the durability tests for the Performance Engineered Mixtures/Performance Related Specifications programs underway at FHWA.

Kyle A. Riding is a professor of civil and coastal engineering at the University of Florida and holds a University of Florida Foundation Professorship. He received his doctoral degree in civil engineering with an emphasis on civil engineering materials from the University of Texas at Austin. His research focuses on concrete durability, constructability, and sustainability. He has served as chair of the Precast/ Prestressed Concrete Institute Concrete Materials Technology committee since 2016. Riding is very active in ACI and is a voting member of ACI committees 201 Durability of Concrete, 207 Mass Concrete, 236 Material Science of Concrete, 318A General, Concrete, and Construction, and is the Chair of ACI committee 231 Properties of Concrete at Early Ages. He is a member of RILEM committee 282-CCL: Calcined Clays as Supplementary Cementitious Materials and leads the committee-working group on the fresh properties, mechanical properties, and specifications. In 2011, Riding was awarded the Wason Medal for Materials Research by the American Concrete Institute for his work on concrete materials and in 2013 the ACI Young Member Award for Professional Development. He is a registered profession engineer in Florida, Kansas, and Nebraska.