VARIATIONS IN QUALITY CHARACTERISTICS OF FLY ASH MODIFIED BY THERMAL PROCESSING

• SATO Yoshiaki

  Zerotechno Co., Ltd. (Oita Univ.)

• OTANI Toshihiro

  Division of Arch., Dept. of Innovative Eng., Faculty of Science and Technology, Oita Univ.

• AKIYOSHI Yoshitada

  Division of Arch., Dept. of Innovative Eng., Faculty of Science and Technology, Oita Univ.

• KIYOHARA Chizuru

  Dept. of Architecture, Tokyo Univ. of Science

Bibliographic Information

Other Title

• 加熱改質処理をしたフライアッシュの特性と品質変動について

Abstract

Modified fly ash (MFA) is defined as FA treated by thermal processing. It is well known that excessive unburned carbon adversely affects the air entrainment performance of concrete. MFA has a consistent LOI of 1% or less. First, the characteristics of unburned carbon in FA and the quality of FA before and after thermal processing were studied, and then, the quality variation of MFA collected periodically were investigated. It was found that MFA with uniformity of characteristics can be produced stably, and one of the obstacles in the promotion of effective utilization of FA seems to have been overcome.

Journal

• AIJ Journal of Technology and Design

  AIJ Journal of Technology and Design 28 (68), 1-6, 2022-02-20

  Architectural Institute of Japan

Keywords

• Modified fly ash (MFA)
• Unburned carbon
• Loss on ignition
• Variation in quality characteristic

Details

• CRID: 1390572632984005504
• NII Article ID: 130008161911
• DOI: 10.3130/aijt.28.1
• ISSN: 18818188
• ISSN: 13419463
• Web Site: https://www.jstage.jst.go.jp/article/aijt/28/68/28_1/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed