The contemporary cement cycle of the United States

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.

[1]  Emergency Response,et al.  Characterization of building-related construction and demolition debris in the United States , 1998 .

[2]  R. A. Smith,et al.  THE CONSTRUCTION INDUSTRY MASS BALANCE: RESOURCE USE, WASTES AND EMISSIONS , 2002 .

[3]  Ken Sandier Analyzing what's recyclable in C&D debris , 2003 .

[4]  C. Tam,et al.  Removal of cement mortar remains from recycled aggregate using pre-soaking approaches , 2007 .

[5]  Gregory A. Keoleian,et al.  Dynamic Modeling of In‐Use Cement Stocks in the United States , 2008 .

[6]  Taketo Uomoto,et al.  Use of Fiber Reinforced Polymer Composites as Reinforcing Material for Concrete , 2002 .

[7]  H. Weisz,et al.  The Weight of Nations : Material Outflows from Industrial Economies , 2000 .

[8]  Pierre-Claude Aitcin,et al.  Cements of yesterday and today Concrete of tomorrow , 2000 .

[9]  Robert B. Gordon,et al.  The Multilevel Cycle of Anthropogenic Zinc , 2005 .

[10]  Yuichi Moriguchi,et al.  Where will large amounts of materials accumulated within the economy go?--A material flow analysis of construction minerals for Japan. , 2007, Waste management.

[11]  Victor C. Li,et al.  Engineered Cementitious Composites (ECC) - Tailored Composites Through Micromechanical Modeling , 1998 .

[12]  Hendrik G. van Oss,et al.  Cement Manufacture and the Environment Part II: Environmental Challenges and Opportunities , 2003 .

[13]  Robert Steuteville,et al.  The state of garbage in America , 1995 .

[14]  Robert J. Klee,et al.  Multilevel cycle of anthropogenic copper. , 2004, Environmental science & technology.

[15]  A. Machida,et al.  Fiber-Reinforced Polymer Composites for Construction—State-of-the-Art Review , 2002 .

[16]  R. Bohne,et al.  Projection of Construction and Demolition Waste in Norway , 2007 .

[17]  Josef Tränkler,et al.  Environmental impact of demolition waste — An overview on 10 years of research and experience , 1996 .

[18]  A Pierre Claude,et al.  CEMENTS OF YESTERDAY AND TODAY CONCRETE OF TOMORROW , 2000 .

[19]  Ralph W. Jurgens 30-plus years of composting experience , 2006 .

[20]  Hendrik G. van Oss,et al.  Cement Manufacture and the Environment: Part I: Chemistry and Technology , 2002 .

[21]  Thomas Kelly,et al.  CRUSHED CEMENT CONCRETE SUBSTITUTION FOR CONSTRUCTION AGGREGATES - A MATERIALS FLOW ANALYSIS , 1998 .

[22]  Frieder Seible,et al.  Use of FRP composites in civil structural applications , 2003 .

[23]  Helmut Rechberger,et al.  The contemporary European copper cycle: The characterization of technological copper cycles , 2002 .