MECHANICAL PROPERTIES OF THE CONCRETE WITH CALCINED ELECTRIC ARC FURNACE OXIDIZING SLAG AS COARSE AGGREGATE AFTER HIGH TEMPERATURE HEATING

被引：0
作者：
Ito Y. [1 ]
Yokota H. [1 ]
Yokoi S. [2 ]
机构：
[1] Nagoya Institute of Technology, Japan
[2] TAISEI CORPORATION, Japan
来源：
Journal of Structural and Construction Engineering | 2023年 / 88卷 / 808期
关键词：
Calcination; Compressive strength; Concrete; Cracks; Electric arc furnace oxidizing slag; High temperature heating;
D O I：
10.3130/aijs.88.872
中图分类号：
学科分类号：
摘要：
When electric arc furnace oxidizing slag gravel (EFG) was used as coarse aggregate, cracks were easily formed after high temperature heating. It is assumed that the transformation of wustite to magnetite by heating caused the volumetric expansion of EFG and the concrete specimens developed cracks. It is assumed that concrete with EFG calcined for volume expansion heating at 500℃ decrease crack. The effect of calcined EFG on mechanical properties after high temperature heating was confirmed. Concrete with EFG calcined at 600°C showed a decrease in cracking of the specimens, and at 1000°C, no cracking was observed. © 2023 Architectural Institute of Japan. All rights reserved.
引用
收藏
页码：872 / 879
页数：7
相关论文
共 23 条
  • [1] Recommendations for design and construction of concrete structures using electric arc furnace oxidizing slag aggregate, (2003)
  • [2] Recommendations for Structural Design of Reactor Buildings, (1988)
  • [3] Shinji K., Tetsuo I., Yosuke I., DEVELOPMENT OF THE HEATING MORTAR BLOCK TO MELT SNOW BY THE QUASI MICROWAVE, Journal of Structural and Construction Engineering (Transactions of AIJ), 69, 586, pp. 1-5, (2004)
  • [4] Yosuke I., Shinji K., Satoshi O., STUDY OF ELECTROMAGNETIC SHIELDING MATERIAL ON HEATING MORTAR BLOCKS FOR MELTING SNOW THROUGH QUASI MICROWAVES, Journal of Structural and Construction Engineering (Transactions of AIJ), 82, 731, pp. 1-10, (2017)
  • [5] Yosuke I., Shinji K., Satoshi O., Hiroki A., STUDY OF A LEAKY WAVEGUIDE ON HEATING MORTAR BLOCK SYSTEM FOR MELTING SNOW THROUGH QUASI MICROWAVES, Journal of Structural and Construction Engineering (Transactions of AIJ), 82, 737, pp. 969-978, (2017)
  • [6] Yosuke I., Shinji K., Satoshi O., EFFECT OF THICKNESS OF THE BASE LAYER ON ELECTROMAGNETIC ABSORPTION ON HEATING MORTAR BLOCKS FOR MELTING SNOW THROUGH QUASI MICROWAVES, Journal of Structural and Construction Engineering (Transactions of AIJ), 82, 739, pp. 1321-1327, (2017)
  • [7] Yosuke I., Shinji K., Hiroto T., STUDY OF A HEATING MORTAR BLOCK SYSTEM FOR MELTING SNOW BY THE LEAKY WAVEGUIDE WITH VERTICAL SLOTS, Journal of Structural and Construction Engineering (Transactions of AIJ), 86, 788, pp. 1412-1420, (2021)
  • [8] Hiroshi Y., Yosuke I., Shinji K., Susumu Y., Mechanical characteristics after high-temperature heating of the concrete using electric arc furnace oxidizing slag as coarse aggregate, Proceeding of the Japan Concrete Institute, 43, 1, pp. 311-316, (2021)
  • [9] Yosuke I., Shinji K., Susumu Y., Hiroshi Y., Mechanical Characteristics of the Concrete After High Temperature Heating Mixed with Electric Arc Furnace Oxidizing Slag as Coarse Aggregate and Sand, Proceeding of the Japan Concrete Institute, 43, 1, pp. 317-322, (2021)
  • [10] Yosuke I., Shinji K., Nana F., Hiroshi, Mechanical Properties of Concrete Using Electric Furnace Oxidizing Slag Coarse Aggregate after Calcination, Proceeding of the Japan Concrete Institute, 44, 1, pp. 274-279, (2022)
123