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Use advice for data set Users of this data set should note that environmental impacts from the extraction of limestone and gypsum are sourced from the China Life Cycle Reference Database (CLCD). However, due to the lack of specific data for clay and iron ore extraction and considering their lesser quantities, limestone mining emission data are used as estimations. When using this LCA data, attention should be given to the system boundary which consists only of cement production, the extraction and transportation of raw materials, and the production of electricity. The use and end-of-life processing of cement is excluded. The transportation and preparation phases of auxiliary materials such as fly ash are included, but their production stages are omitted from the analysis. For industrial waste, only the transportation and preparation process are considered, with the environmental impacts caused by the production of these materials being allocated to the original producer. The functional unit for the life cycle model is set as 1 ton of cement. |
Data set use approval |
