化工矿物与加工2025，Vol.54Issue(12)：62-70,9.DOI:10.16283/j.cnki.hgkwyjg.2025.12.008
减水剂和保水剂改性煅烧石膏研究进展
Research progress of calcined gypsum modified by water reducing agent and water retaining agent
摘要
Abstract
The performance defects of gypsum cementitious materials greatly limit their utilization as building mate-rials.Admixtures can effectively improve their physical and mechanical properties and construction performance.In this paper,the structure types,characteristics and mechanism of water reducing agent and water retaining agent were systematically summarized,and the influence of these two kinds of admixture modification on the performance of gyp-sum and the adaptability with calcined gypsum were analyzed.In the future,based on the hydration characteristics and construction requirements of calcined gypsum,the admixtures with good adaptability should be designed and synthe-sized from the perspective of the structure and function of water reducing agent and water retaining agent.From the perspective of structural optimization,considering the loading of functional groups with stronger adsorption capacity than SO42-on the side chain of polycarboxylate superplasticizer,the number of functional groups with retarding prop-erties on the main chain is reduced.At the same time,the application of composite water-retaining agent in type Ⅱ an-hydrous gypsum-based mortar products is strengthened.关键词
改性/煅烧/石膏/胶凝材料/减水剂/保水剂/适配性/外加剂Key words
modification/calcination/gypsum/cementitious material/water reducing agent/water retaining agent/suitability/admixture分类
化学化工引用本文复制引用
钟晋,李恒,张晖,许可可..减水剂和保水剂改性煅烧石膏研究进展[J].化工矿物与加工,2025,54(12):62-70,9.基金项目
云南省工业领域科技计划项目重点研发计划项目(202103AA080012). （202103AA080012）
