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Research on Alkali-Activated Systems Based on Solid Waste-Derived Activators: A Review

Author

Listed:
  • Xiaomei Wan

    (School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China
    Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao 266520, China)

  • Lijie Ren

    (School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China)

  • Tingjian Lv

    (CCCC Construction Group Co., Ltd., Beijing 100022, China)

  • Dengke Wang

    (School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China)

  • Boshi Wang

    (School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China)

Abstract

The development of solid waste-derived activators for the preparation of alkali-activated systems is of great significance for further enhancing the environmental friendliness and sustainability of alkali-activated materials. In this review, the potential feasibility of applying solid waste-derived activators to prepare alkali-activated systems is explored. Through a discussion of alkali-activation mechanisms, the effect of activators on high-calcium and low-calcium systems is highlighted first. The properties and limitations of commonly used industrial-grade alkali activators are reviewed next. Finally, recent reports on waste-derived activators in alkaline activation systems are summarized, revealing the advantages and development trends of solid wastes with CaO, K 2 O/Na 2 O, and SiO 2 as the main components of effective substitutes for alkaline industrial exciters.

Suggested Citation

  • Xiaomei Wan & Lijie Ren & Tingjian Lv & Dengke Wang & Boshi Wang, 2025. "Research on Alkali-Activated Systems Based on Solid Waste-Derived Activators: A Review," Sustainability, MDPI, vol. 17(1), pages 1-23, January.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:1:p:254-:d:1558547
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