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Influence of retarders on the microstructure of hardened building gypsum paste and the mechanism of its strength loss
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Controlling set times during gypsum board production
Show Details用于水泥缓凝剂的脱硫石膏的生产要求
对用作水泥缓凝剂的脱硫石膏的技术要求为:SO3含量大于40%、SO2含量低于7.4mg/kg,附着水含量低于5%,烧失量低于2%。符合以上技术要求的脱硫石膏可用作水泥缓凝剂,水泥的凝结时间可满足国家标准要求。
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