Proceedings of the Korean Institute of Resources Recycling Conference (한국자원리싸이클링학회:학술대회논문집)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Electrical pulse separation of construction materials

전기적 펄스를 이용한 폐콘크리트로부터의 재생골재 분리 연구

  • You, Kwang-Suk (Korea Institute of Geoscience and Mineral Resources (KIGAM)) ;
  • Ahn, Ji-Whan (Korea Institute of Geoscience and Mineral Resources (KIGAM)) ;
  • Fujita, Toyohisa (The University of Tokyo) ;
  • Han, Gi-Chon (Korea Institute of Geoscience and Mineral Resources (KIGAM))
  • Published : 2005.05.19
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Abstract

The electrical pulse separation of concrete samples for the recycling purpose has been investigated by the electrical disintegration method using the discharged high voltageimpulse. First, when the consumed energy increased in electrical crushing, fracture section area increased clearly. This result suggests that crushing energy was consumed efficiently. Secondly, when conventional crushing after electrical disintegration is compared with only conventional crushing, gravels are more stable after electrical crushing. Thus, electrical crushing makes it easy to recover gravels from wasted concrete. In the next year, more efficient recovery of gravel for wasted concrete by electrical disintegration will be investigated. Thus, actual wasted concrete crushing by electrical separation and combination of conventional crushing will be carried out.

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