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In this paper, bottom ash (BA) particles (size <1.25mm) were designed, tested for strength, and microscopically analyzed. The research aimed to analyze the influence of active calcium content and curing temperature on the strength development of bottom ash alkali—activated specimens. These findings offer insight into the preparation of bottom ash alkali—activated materials (AAMs) to improve municipal solid waste incineration (MSWI) efficiency. When the volume ratio of water glass solution (SP38 type) to sodium hydroxide solution (5mol/l) was 2:1, increasing GBFS content led to higher compressive strength of alkali—activated specimens. Sealing during composite curing promoted polymerization and the formation of C-S-H and C-A-S-H gels.

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Study on the Effect of Active Calcium Content and Curing Temperature on the Properties of BA Alkali-Activated Materials

  • 会议论文

  • 发表日期：

    2026年

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  • Songhua Wang,
  • Mingjie Xie,
  • Qing Wu,
  • Wei Wang

摘要

In this paper, bottom ash (BA) particles (size <1.25mm) were designed, tested for strength, and microscopically analyzed. The research aimed to analyze the influence of active calcium content and curing temperature on the strength development of bottom ash alkali—activated specimens. These findings offer insight into the preparation of bottom ash alkali—activated materials (AAMs) to improve municipal solid waste incineration (MSWI) efficiency. When the volume ratio of water glass solution (SP38 type) to sodium hydroxide solution (5mol/l) was 2:1, increasing GBFS content led to higher compressive strength of alkali—activated specimens. Sealing during composite curing promoted polymerization and the formation of C-S-H and C-A-S-H gels.