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<p>This study examines the synthesis of porous materials derived from various types of coal combustion by-products (fly ash, boiler slag, and bottom ash) using a self-foaming approach with the fluxing agent Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>. The internal structure and density of the samples were analyzed in relation to foaming temperature and flux content. The results indicate that samples based on boiler slag exhibit the most uniform structure. The study also elucidates the influence of phase composition on sintering and foaming intensity, including the enhanced reactivity of glass-phase components and the facilitated softening of aluminosilicate matrices.</p>

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Synthesis of Porous Materials Based on Coal Combustion by-Products from Thermal Power Plants Using Self-Foaming

  • 期刊论文

  • 发表日期：

    2025年5月9日

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  • B. M. Gol’tsman,
  • V. A. Smoliy,
  • V. S. Yatsenko,
  • E. A. Vilbitskaya

摘要

This study examines the synthesis of porous materials derived from various types of coal combustion by-products (fly ash, boiler slag, and bottom ash) using a self-foaming approach with the fluxing agent Na2B4O7. The internal structure and density of the samples were analyzed in relation to foaming temperature and flux content. The results indicate that samples based on boiler slag exhibit the most uniform structure. The study also elucidates the influence of phase composition on sintering and foaming intensity, including the enhanced reactivity of glass-phase components and the facilitated softening of aluminosilicate matrices.