van Oss, H; Kapur, A; Keoleian, G; Kesler, S; Kendall, A - 2009
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 …