GB/T 21371-2019
ActiveBy-product gypsum used in cement
用于水泥中的工业副产石膏
Application Summary AI generated
GB/T 21371-2019 specifies the technical requirements, test methods, and acceptance rules for industrial by-product gypsum used as a cement retarder or mineral additive in cement production. It applies to gypsum derived from chemical processes such as flue gas desulfurization, phosphogypsum, or citrogypsum, ensuring they meet quality and environmental safety standards for use in construction cement. This standard is primarily applied in cement manufacturing plants and quality inspection contexts to regulate the utilization of industrial waste gypsum in building materials.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.