A Review of Emerging Energy-efficiency and CO₂ Emission-reduction Technologies for Cement and Concrete Production

Globally, the cement industry accounts for approximately 5 percent of current man-made carbon dioxide(CO₂) emissions. Development of new energy-efficiency and CO₂ emission-reduction technologies and their deployment in the market will be key for the cement industry's mid- and long-term climate change mitigation strategies. This paper is an initial effort to compile the available information on process description, energy savings, environmental and other benefits, costs, commercialization status, and references for emerging technologies to reduce the cement industry's energy use and CO₂ emissions. This paper consolidates available information on eighteen emerging technologies for the cement industry,with the goal of providing engineers, researchers, investors, cement companies, policy makers, and other interested parties with easy access to a well-structured database of information on these technologies.