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The contemporary cement cycle of the United States

Journal of Material Cycles and Waste Management
By: , , , , and 
https://doi.org/10.1007/s10163-008-0229-x

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Abstract

A country-level stock and flow model for cement, an important construction material, was developed based on a material flow analysis framework. Using this model, the contemporary cement cycle of the United States was constructed by analyzing production, import, and export data for different stages of the cement cycle. The United States currently supplies approximately 80% of its cement consumption through domestic production and the rest is imported. The average annual net addition of in-use new cement stock over the period 2000-2004 was approximately 83 million metric tons and amounts to 2.3 tons per capita of concrete. Nonfuel carbon dioxide emissions (42 million metric tons per year) from the calcination phase of cement manufacture account for 62% of the total 68 million tons per year of cement production residues. The end-of-life cement discards are estimated to be 33 million metric tons per year, of which between 30% and 80% is recycled. A significant portion of the infrastructure in the United States is reaching the end of its useful life and will need to be replaced or rehabilitated; this could require far more cement than might be expected from economic forecasts of demand for cement. ?? 2009 Springer Japan.
Publication type Article
Publication Subtype Journal Article
Title The contemporary cement cycle of the United States
Series title Journal of Material Cycles and Waste Management
DOI 10.1007/s10163-008-0229-x
Volume 11
Issue 2
Year Published 2009
Language English
Publisher Springer
Description 11 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Material Cycles and Waste Management
First page 155
Last page 165
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