Welcome to Visit BULLETIN OF THE CHINESE CERAMIC SOCIETY! Today is

BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (5): 1672-1687.

Special Issue: 资源综合利用

• Solid Waste and Eco-Materials • Previous Articles     Next Articles

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

ZHANG Yishuang1, ZHOU Jian1,2, LI Hui1, XU Mingfeng1   

  1. 1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
    2. Arizona College of Technology, Hebei University of Technology, Tianjin 300401, China
  • Received:2023-01-06 Revised:2023-02-19 Online:2023-05-15 Published:2023-06-01

Abstract: 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 Al2O3 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.

Key words: aluminium-rich material, Cl- binding capacity, Portland cement, fly ash, slag, metakaolin, calcium sulfoaluminate cement, aluminate cement

CLC Number: