An experimental investigation of factors related to coke strength degradation in coke milli-structure

Tetsuya Kanai, Yoshiaki Yamazaki, Kenichi Hiraki, Xiaoqing Zhang, Masakazu Shoji, Hideyuki Aoki, Takatoshi Miura

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In order to clarify the factors related to coke strength degradation, relationship between coke strength and pore structure is quantitatively investigated. The tensile strength of coke is measured by diametral-compression test and analyzed by Weibull plot. Pore structure is analyzed with wide range(10 mm×10 mm) and high resolution(2.43 μm/pixel) photographs which are acquired by combining approximately 20 photographs. Absolute maximum pore length, pore area ratio and pore roundness are measured by image analysis of the photographs. By comparison of strength and absolute maximum pore length in coke, strength is degraded with an increase in area ratio of pores over 1000 μm in absolute maximum length. From image analysis, it is found that the pore roundness decreases with an increase in absolute maximum length. The length of 1000 μm corresponds with the critical crack length calculated by Griffith equation in scale.

本文言語English
ホスト出版物のタイトル27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
ページ1925-1931
ページ数7
出版ステータスPublished - 2010 12月 1
イベント27th Annual International Pittsburgh Coal Conference 2010, PCC 2010 - Istanbul, Turkey
継続期間: 2010 10月 11 → …

出版物シリーズ

名前27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
3

Other

Other27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
国/地域Turkey
CityIstanbul
Period10/10/11 → …

ASJC Scopus subject areas

  • 地球化学および岩石学
  • 地盤工学および土木地質学

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