Hydrothermal solidification of blast furnace slag by formation of tobermorite

Zhenzi Jing, F. Jin, T. Hashida, N. Yamasaki, H. Ishida

研究成果: Article査読

33 被引用数 (Scopus)

抄録

Blast furnace water-cooled slag (BFWS) has been solidified using a hydrothermal processing method, in which the BFWS could be solidified in an autoclave under saturated steam pressure (1.56 MPa) at 200 °C for 12 h by the additions of quartz or coal flyash. The tensile strength development was shown to depend on the formation of tobermorite and the packing state of the formed tobermorite in the solidified bodies. The additions of quartz or fly ash were proved to be favorable not only to the formation of tobermorite but also to the transformation of hibschite, the former improving the strength, and the latter deteriorating the strength. The excessive addition of quartz appeared to cause strength deterioration due to the fact that the residual quartz affected the formation of tobermorite in the solidified bodies.

本文言語English
ページ(範囲)8236-8241
ページ数6
ジャーナルJournal of Materials Science
42
19
DOI
出版ステータスPublished - 2007 10月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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