摘要
磷石膏基胶凝材料是由磷石膏、辅助胶凝材料、外加剂等原料按照一定比例混合形成,具有一定机械强度的硬化体,在建筑、道路、环境治理等领域具有广阔的应用前景。本文依据国内外现有的磷石膏制备胶凝材料的研究成果,综述了磷石膏基胶凝材料的反应机理及应用进展,总结了磷石膏基胶凝材料力学性能的影响因素,包括磷石膏的类型、杂质、掺量、粒径、辅助掺合料及外加剂等。最后,对磷石膏基胶凝材料的发展方向进行了展望,提出了未来探索新型高效除杂工艺的同时,应发展复合型和功能型高强磷石膏基胶凝材料,并协同其他固废降低材料浸出毒性的风险。
Phosphogypsum cementitious materials are formed by mixing phosphogypsum,auxiliary cementitious materials,admixtures and other raw materials according to a certain proportion to form a hardened body with a certain mechanical strength,which has a broad application prospect in the fields of construction,road,environmental treatment and so on.In this paper,based on the existing research results on the preparation of cementitious materials from phosphogypsum at home and abroad,the reaction mechanism and application progress of phosphogypsum cementitious materials are summarized,and the factors affecting the mechanical properties of phosphogypsum cementitious materials are summarized,including the type of phosphogypsum,impurities,dosage,particle size,auxiliary dopants and admixtures,etc.At last,an outlook is given to the development direction of the phosphogypsum cementitious materials,and it is proposed that the future development of composite and functional materials should be developed in the same time as exploring the new type of highly efficient impurity removal processes,and synergizing with other solid wastes to reduce the risk of material leaching toxicity.
作者
温小韵
童雄
尚江涛
车远
陈柯臻
谢贤
范培强
WEN Xiaoyun;TONG Xiong;SHANG Jiangtao;CHE Yuan;CHEN Kezhen;XIE Xian;FAN Peiqiang(Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Research Academy of Eco-Environmental Sciences,Kunming 650034,China;Yunnan Provincial Heavy Metal Pollution Control Engineering Center,Kunming 650034,China;Kaiyuan Ecological Environment Monitoring Station,Honghe 661699,China)
出处
《硅酸盐通报》
北大核心
2025年第3期953-969,共17页
Bulletin of the Chinese Ceramic Society
基金
国家磷资源开发利用工程技术研究中心开放基金(NECP2023-10)。
关键词
磷石膏
胶凝材料
水化机理
工程应用
外加剂
影响因素
phosphogypsum
cementitious material
hydration mechanism
engineering application
admixture
influencing factor
