摘要
地质聚合物(以下简称“地聚合物”)作为一种具有硅铝酸盐三维网状结构的新型绿色凝胶材料,具有力学性能高、常温制备能耗低、耐酸碱腐蚀、耐火性能高、抗冻抗渗、快凝、早强等特点,并且可利用粉煤灰、垃圾焚烧飞灰/底灰、矿渣等固体废弃物(以下简称“固废”)(包括危险废弃物,简称“危废”)作为生产原料,在建筑材料、道路修复、重金属固化、光催化废水吸附等固废利用领域具有广阔的应用前景.本文论述了地聚合物材料研究的反应机理,重点综述了可用于地聚合物生产的固废来源,以及目前地聚合物材料主要的具有前景的应用领域,并对固废制备地聚合物材料存在的问题进行了分析,以期实现对固体废物经济有效、高附加值的利用,为固废制备地聚合物材料的深入研究和新型工程应用开发更多的产品提供积极有力的参考、支持作用.
Geopolymers are a type of environmentally inorganic polymer cementitious materials with a 3D network of silico-aluminate structures.They feature higher performances compared with ordinary Portland cement,including stronger mechanical properties,better durability,and lower energy consumption.Fly ash,sludge incineration residue,slag red mud,and other solid wastes can be used as raw materials for their production.In addition,geopolymers are great candidates for building materials,road repair,and wastewater adsorption.In this paper,we discuss state-of-the-art reaction mechanisms for alkali-and acid-activated geopolymer materials.More specifically,we focused on the sources of solid waste used in geopolymer production and the primary application fields for geopolymer materials.At the same time,their key virtues and deficiencies were also analyzed and discussed.The latter opened venues for efficient commercial utilization of solid wastes with high added value.Thus,we provided a comprehensive background for further studies of geopolymer materials and their potential engineering applications.
作者
余春松
张玲玲
郑大伟
杨飞华
王庆国
吴文瞳
王晨希
苍大强
YU ChunSong;ZHANG LingLing;ZHENG DaWei;YANG FeiHua;WANG QingGuo;WU WenTong;WANG ChenXi;CANG DaQiang(Beijing Key Laboratory for Resource Treatment of Industrial Typical Pollutants,Beijing 100083,China;School of Energy and Environmental Engineering,Beijing University of Science and Technology,Beijing 100083,China;Institute of Materials Science and Engineering,“National”Taibei University of Science and Technology,Taibei 106344,China;Beijing Building Materials Academy of Sciences Research,Beijing 100041,China;State Key Laboratory of Solid Waste Resource Utilization and Energy Saving Building Materials,Beijing 100041,China;School of Metallurgy and Ecological Engineering,Beijing University of Science and Technology,Beijing 100083,China)
出处
《中国科学：技术科学》
EI
CSCD
北大核心
2022年第4期529-546,共18页
Scientia Sinica(Technologica)
基金
中央高校基本科研业务费(编号:FRF-IC-17-007)资助项目。
关键词
固体废弃物
地质聚合物
反应机理
研究与应用领域
存在问题
solid waste
geopolymer
reaction mechanism
research and application fields
existing problems
作者简介
张玲玲,E-mail:zhanglingling@ustb.edu.cn。
