硅酸盐水泥-富铝材料复合体系Cl-结合能力的研究进展  

Research Progress on Cl-Binding Capacity of Portland Cement and Aluminium-Rich Material Composite Systems

作　　者：张熠爽 周健 李辉[1] 徐名凤 ZHANG Yishuang;ZHOU Jian;LI Hui;XU Mingfeng(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China;Arizona College of Technology,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]河北工业大学亚利桑那工业学院,天津300401

出　　处：《硅酸盐通报》2023年第5期1672-1687,共16页Bulletin of the Chinese Ceramic Society

基　　金：河北省自然科学基金(E2021202037)。

摘　　要：氯离子(Cl^(-))引起的锈蚀是影响钢筋混凝土使用寿命的主要问题。硅酸盐水泥-富铝材料(粉煤灰、矿渣等)复合体系可以有效结合Cl^(-),提高钢筋混凝土抵抗Cl^(-)侵蚀的能力,成为当前的研究热点。然而,现有研究对硅酸盐水泥-富铝材料复合体系Cl^(-)结合能力的横向对比较为缺乏。本文首先介绍了Cl^(-)在水泥体系中的结合机理,重点总结了不同硅酸盐水泥-富铝材料复合体系的Cl^(-)结合能力,并以Al_(2)O_(3)含量作为主要变量横向对比了现有研究中复合体系的Cl^(-)结合能力。同时,阐述并分析了影响复合体系Cl^(-)结合能力的多方面因素。最后,为后续研究提供了更为准确地衡量与对比多种硅酸盐水泥-富铝材料复合体系Cl^(-)结合能力的参考方案,同时为设计新型高性能硅酸盐水泥-富铝材料复合体系提供理论基础。Chloride(Cl^(-))corrosion is the main problem affecting the service life of reinforced concrete.Because Portland cement and aluminium-rich material(fly ash,slag,etc.)composite systems effectively bind Cl^(-)and improve the corrosion resistance of reinforced concrete,they have attracted considerable research attention.However,the horizontal comparison of Cl^(-)binding capacity of different Portland cement and aluminium-rich material composite systems in existing research is insufficient.First,the process of physical adsorption and chemical binding of chloride in the cement-based system was introduced.Then,Cl^(-)binding capacity of Portland cement and aluminium-rich material composite systems was summarised,and the Cl^(-)binding capacity of composite systems in previous publications was compared with Al_(2)O_(3)content as the main variable.In addition,various factors affecting the Cl^(-)binding capacity of composite systems were described and analysed.Finally,a more accurate scheme for measuring and comparing the Cl^(-)binding capacity of various Portland cement and aluminium-rich material composite systems for subsequent research was provided,and a theoretical basis for the design of novel high-performance Portland cement and aluminium-rich material composite systems was provided.

关 键 词：富铝材料 Cl-结合能力 硅酸盐水泥 粉煤灰 矿渣 偏高岭土 硫铝酸盐水泥 铝酸盐水泥 

分 类 号：TU528[建筑科学—建筑技术科学] TQ172[化学工程—水泥工业]