Ordinary portland cement. Cement production unit process. When utilizing this LCA dataset for ordinary Portland cement, ensure that system boundaries are consistent and include raw meal preparation, clinker grinding, calcination, and cement preparation up to final storage. Do not include environmental impacts from the use stage and waste recycling stage of the cement. For accurate assessment, datasets should be used in the context of their technological applicability and regional relevance. Adjustments may be necessary when considering technological evolution or variations in regional practices.