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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (8): 2737-2748.DOI: 10.16552/j.cnki.issn1001-1625.2026.0091

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

Research Progress on Solidification of Radioactive Waste by Phosphoric Acid-Based Geopolymers

QIN Yongbo1,2,3,4, ZHANG Li1,2,3,4, GUO Xiliang1,2,3,4, WANG Ji1,2,3,4, REN Yafeng1,2,3,4, HAN Xu1,2,3,4, YANG Zijie1,2,3,4, YAN Xiaojun1,2,3,4, GAO Chao1,2,3,4()   

  1. 1.China Institute for Radiation Protection,Taiyuan 030006,China
    2.Shanxi Province Engineering Research Center of Nuclear Facility Decommissioning and Radioactive Waste Management,Taiyuan 030006,China
    3.Nuclear Facilities Decommissioning and Radioactive Waste Management Technology Innovation Center,Taiyuan 030006,China
    4.Shanxi Center of Technology Innovation for Nuclear Facility Decommissioning and Radioactive Waste Management,Taiyuan 030006,China
  • Received:2026-01-23 Revised:2026-03-23 Online:2026-08-15 Published:2026-09-01
  • Contact: GAO Chao

Abstract:

Phosphoric acid-based geopolymers exhibit great application potential for radioactive waste solidification due to their excellent mechanical properties, high resistance for high temperature, and corrosion resistance. However, the immobilization mechanism of phosphoric acid-based geopolymers is complex, and related research starts relatively late, resulting in insufficiently systematic technical research and a lack of in-depth understanding of the immobilization mechanism. This paper analyzes the research progress in the field of phosphoric acid-based geopolymers for immobilizing different types of ions and wastes, and evaluates their immobilization performance by comparing the immobilization mechanisms with those of ordinary Portland cement and alkali-activated geopolymers. In addition, based on the current research progress and trends, this paper discusses the existing problems and future research directions in the application of phosphoric acid-based geopolymers for radioactive waste immobilization, providing insights for the further research and development of phosphoric acid-based geopolymer solidification technology.

Key words: phosphoric acid-based geopolymer, radioactive waste, metakaolin, waste solidification, immobilization mechanism

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