氯氧镁胶凝材料的水化进程与微观结构及性能调控研究进展  

Research Progress on Hydration Process and Microstructure of Magnesium Oxychloride Cementitious Materials and the Performance Control Methods

作　　者：张韵淇 孙振平[1,2] 杨敬斌 杨海静 李飞[3] 马跃飞 李志林 王至立 董家宴 田旭 艾龙坤 

机构地区：[1]同济大学材料科学与工程学院先进土木工程材料教育部重点实验室,上海201804 [2]上海市水务局城市管网智能评估与修复工程技术研究中心,上海201900 [3]上海复培新材料科技有限公司,上海201805 [4]乌兰浩特市圣益商砼有限公司,内蒙古自治区乌兰浩特137400 [5]云南氟业环保科技股份有限公司,云南昆明650011 [6]泰州夏北新型绿色建材科技有限公司,江苏泰州225500 [7]堡森(上海)环境工程有限公司,上海200441

出　　处：《混凝土世界》2025年第4期69-79,共11页China Concrete

基　　金：国家自然科学基金项目(52278272);上海市科委科技项目(23DZ1203500);上海市建委专项课题(住建管2021-001-002);重庆市科技局专项项目(cstc2020kqjscx-phxm1594);内蒙古自治区科技计划项目(2022YFDZ0063);云南省科技厅专家工作站项目(202105AF150243)。

摘　　要：氯氧镁胶凝材料(MOC)凭借其快硬早强、耐火性优异等特点,已成为传统硅酸盐水泥体系的必要补充材料,在装饰工程、耐火工程和修复工程中得到了初步应用。但MOC的水化速率过快、放热过于集中,容易导致结构开裂,且水化产物耐水性较差,限制了其应用范围的扩展。本文系统分析了MOC的原材料、制备方法、水化机理、水化进程、水化产物组成和形貌与宏观性能之间的关系,综述了聚羧酸系减水剂、无机酸及其盐类和有机酸及其盐类缓凝剂对MOC的改性效果与改性机理方面的研究进展,并针对MOC现有改性措施的局限性,提出了相应的改进措施。Magnesium oxychloride cementitious material(MOC)is a necessary supplement to traditional silicate series cement in terms of quick hardening,early strength and fire resistance,and has been initially applied in decoration engineering,fire resistance engineering and restoration engineering.However,the shortcomings of MOC,such as too fast hydration rate and too concentrated hydration heat release,easily lead to structural cracking,and the poor water resistance of hydration products,limit the expansion of its application scope.In this paper,the raw materials,preparation methods,hydration mechanism,hydration process,and the relationship between the composition and morphology of hydration products and macro-properties of MOC are described in detail.The research progress in the modification effect and mechanism of MOC by polycarboxylate superplasticizer and inorganic and organic retarders is summarized,and corresponding improvement measures are proposed to address the limitations of existing MOC modification measures.

关 键 词：氯氧镁胶凝材料 改性机理 水化进程 微观结构 耐水性 

分 类 号：TQ177[化学工程—硅酸盐工业]