THE PRODUCTION PROCESS OF RECYCLED FINE AGGREGATES USING ULTRASONIC

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  • TAKEMOTO Yoshiaki
    Research Engineer, Institute of Technology, Shimizu Corporation, Dr. Eng.
  • ENOMOTO Naoya
    Assoc. Prof., Department of Applied Chemistry, Faculty of Engineering, Kyushu Univ., Dr. Eng.
  • AKATSU Takashi
    Assoc. Prof., Materials and Structures Laboratory, Tokyo Institute of Technology, Dr. Eng.
  • HASHIDA Hiroshi
    General Manager, Institute of Technology, Shimizu Corporation, Dr. Eng.
  • HAYASHI Shizuo
    Prof., Structural Engineering Research Center, Tokyo Institute of Technology, Dr. Eng.
  • TANAKA Kyoji
    Prof. Emeritus, Tokyo Institute of Technology, Dr. Eng.

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Other Title
  • 超音波振動を用いた再生細骨材製造プロセス
  • チョウオンパ シンドウ オ モチイタ サイセイサイコツザイ セイゾウ プロセス

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Waste concrete fine powder that is residue after aggregates recycling of demolished concrete is disposed as a low material of value. We have developed the process of dividing waste concrete fine powder into a material by using acid. In this paper, the process of waste concrete fine powder was applied and the manufacturing process of recycled fine aggregate which does not discharge waste concrete fine powder was developed. And by using ultrasonic for this recycled-fine-aggregate process, it succeeded in the quality of recycled fine aggregate, and improvement in processing efficiency.

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