フライアッシュ人工骨材の発泡機構　フライアッシュ人工骨材　（第２報）

DOI Web Site 被引用文献3件 参考文献24件

書誌事項

タイトル別名
  • The Expansion Mechanism of Artificial Aggregate from Coal Fly Ash-Artificial aggregate from fly ash(2nd Report).
  • フライアッシュ ジンコウ コツザイ ノ ハッポウ キコウ フライアッシュ ジンコウ コツザイ ダイ2ホウ
  • - Artificial aggregate from fly ash(2nd Report)-
  • -フライアッシュ人工骨材(第2報)-

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抄録

To produce an artificial aggregate of stable quality, investigations of the expansion / sinter mechanism of coal fly ash are required. The purpose of this study is to clarify the influence of carbonecious substances on pellet expansion by firing, especially related to the atmospheric conditions.<BR> The study revealed two types of expansion. One relates to unburned coal fragments which exist separately from ash particles. In this case, large pores are formed around an oxidization front in the expanded pellet, accompanied by a macroscopic double - core structure in the sintered zone proceeding from outside. The other relates to very small coal fragment trapped in glassy spheres. Because the spheres in the pellet are distributed homogeneously, small pores are also inflated homogeneously with producing CO2 and CO. These gasses are generated by a reaction of the unburned coal fragments and oxygen in the glassy structure.

収録刊行物

  • 資源と素材

    資源と素材 116 (1), 23-29, 2000

    一般社団法人 資源・素材学会

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