GB/T 21371-2008
AbolishedBy-Product gypsum for use in cement
用于水泥中的工业副产石膏
Application Summary AI generated
GB/T 21371-2008 specifies the technical requirements, test methods, and acceptance criteria for industrial by-product gypsum used as a cement retarder or mineral additive in cement production. It applies to materials such as desulfurized gypsum from coal-fired power plants, phosphogypsum from fertilizer manufacturing, and other chemical gypsum sources, ensuring they meet performance and environmental safety standards for use in the construction industry. This standard is primarily applied by cement manufacturers and quality inspection agencies to evaluate and approve alternative gypsum sources for Portland cement and other hydraulic binders.
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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.