Alternative Cementitious Materials in Transportation: Sustainable, Durable Substitutes for Portland Cement: [fact sheet]
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Alternative Cementitious Materials in Transportation: Sustainable, Durable Substitutes for Portland Cement: [fact sheet]

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      As the world’s second-most widely used material behind water, concrete is a core ingredient of American infrastructure, including its use to build roads and bridges on the National Highway System. Concrete, due to its long service life, has a low environmental cost; however, its major component, ordinary portland cement (OPC), in its manufacturing process, gives off a large amount of carbon dioxide; and by reducing or replacing OPC, significant sustainability improvements will result. To use less energy in cement production, the Exploratory Advanced Research (EAR) Program at the Federal Highway Administration (FHWA) is supporting research to increase access to potential replacements or alternatives for portland cement. These alternative cementitious materials (ACMs) are the focus of a project titled “Novel Alternative Cementitious Materials for Development of the Next Generation of Sustainable Transportation Infrastructure.” The primary goal is to facilitate infrastructure construction and rehabilitation using concrete that is made with ACMs. The Georgia Institute of Technology is spearheading the research in partnership with Oklahoma State University, Tourney Consulting, and the U.S. Army Corps of Engineers. The three-phase project began in 2014.
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