Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Evaluation for Fundamental Properties of Concrete mixed with Pyroclastic Flow Deposit

화쇄류 퇴적물을 혼입한 콘크리트의 기초특성 평가

  • Choi, Hyeong-Gil (Graduate School of Engineering, Muroran Institute of Technology) ;
  • Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam National University) ;
  • Noguchi, Takafumi (Department of Architecture, The University of Tokyo)
  • Received : 2015.06.04
  • Accepted : 2015.09.14
  • Published : 2016.02.29
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Abstract

The aim of this study was to investigate the fundamental properties of pyroclastic flow deposit (PFD), and evaluate the fresh and strength properties of concrete mixed with PFD by indoor tests. The fresh properties, strength properties, shrinkage properties, and durability of the concrete mixed with PFD were also evaluated by outdoor plant tests. the harmful alkali-silica reaction did not occur by mixing concrete with PFD. ages. Moreover, no difficulty was found to be associated with concrete manufacture in the plant because no change in air contents and noticeable slump loss occurred by mixing concrete with PFD. The strength properties, shrinkage properties, and durability of the concrete mixed with PFD were also compared with those of normal concrete. With a suitable temperature control and curing method of concrete, the concrete mixed with PFD is considered to be useful in the construction material field.

실내실험으로서 화쇄류 퇴적물의 기초물성을 평가하고, 화쇄류 퇴적물의 혼입율에 따른 콘크리트의 굳지않은 성상 및 강도특성을 평가했다. 그 후, 실기 플랜트 제조실험을 실시해 화쇄류 퇴적물 혼입 콘크리트의 굳지않은 성상, 강도특성, 수축 특성 및 내구특성에 대해 검토했다. 그 결과, 화쇄류 퇴적물의 혼입에 의한 유해한 알칼리 실리카 반응은 발생하지 않았다. 더불어, 화쇄류 퇴적물에 의해 장기재령에 있어서의 강도향상 등의 포졸란 반응의 효과를 기대할 수 있다고 판단된다. 실기 플랜트 제조실험에 있어서도 화쇄류 퇴적물 혼입에 의한 공기량의 변화나 현저한 슬럼프 로스는 발생하지 않았고, 실기 플랜트로의 제조도 아무런 문제는 없다고 판단된다. 한편, 화쇄류 퇴적물을 혼입한 콘크리트의 강도특성, 수축특성 및 내구특성은 보통 콘크리트와 비교해서 동일한 수준으로 평가되었으며, 화쇄류 퇴적물을 혼입한 콘크리트의 경우, 콘크리트의 적절한 온도관리나 적절한 양생방법을 강구하는 것으로 건설재료 분야에 보다 유효하게 활용할 수 있을 것으로 사료된다.

Keywords

References

  1. Tomoyose, A., Choi, H.G., Noguchi, T., Yamasita, Y., Ito, T., Takewaka, K., and Sato, J., "A Fundamental Study on the Application of Shirasu Concrete in Buildings: Part1 Evaluation of the Basic Properties of Shirasu and Shirasu Concrete by Indoor Experiment", Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, 2014, Sep, A-1, pp.317-318.
  2. Choi, H.G., Tomoyose, A., Noguchi, T., Yamasita, Y., Ito, T., Takewaka, K., and Sato, J., "A Fundamental Study on the Application of Shirasu Concrete in Buildings: Part2 Evaluation of the Strength and Durability of Shirasu Concrete by Actual Experiment", Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, 2014, Sep, A-1, pp.319-320.
  3. Development of long-life concrete using by volcanic ash. Annual report. Japan, Hokkaido research organization northern regional building research institute, 2012. p.45.
  4. Mitsudome, Y., "On the effective use of volcanic ash from Mount Shinmoe as an aggregate for concrete", Cement and Concrete, 2012, Apr, Vol.782, pp.14-20.
  5. Onoue, K., "Effective utilization of volcanic ash into concrete products", International Workshop for Volcanic Risk Assessment and Disaster Preparedness, 2012, Oct 31, Seoul, South Korea. pp.145-162.
  6. Yamamoto, K., Negami, T., Hira, M., Aramaki, N., and Hayashi, Y., "Geotechnical properties of artificial geomaterials made from volcanic products in Southern Kyushu area", Proceedings of the International Joint Symposium on Urban Geotechnics and Sustainable Development, 2012, Nov 2-3; Seoul, South Korea, pp.230-233.
  7. Comprehensive countermeasure of anticipative volcano maneuver for volcanic disaster prevention and mitigation: Korea Meteorological Administration, 2011. pp.1-12.
  8. Takewaka, K., "State of the art report on characteristics of shirasu concrete and its practical use", Concrete Journal, 2004, Mar, Vol.42, No.3, pp.38-47. https://doi.org/10.3151/coj1975.42.3_38
  9. Takewaka, K., "Characteristics of Shirasu Concrete - Based on contents in the manual established by Kagoshima Prefectural office", Concrete Journal, 2007, Feb, Vol.45, No.2, pp.16-23.
  10. Choi, H.G., Tomoyose, A., Noguchi, T., Yamasita, Y., Ito, T., Takewaka, K., and Sato, J., "A Fundamental Study on the Application of Shirasu Concrete in Buildings: Part2 Evaluation of the Basic Properties of Shirasu and Shirasu Concrete by Indoor Experiment", Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, 2014, Sep, A-1, p.319.
  11. Kirikoshi, K., and Mihashi, H., "Fundamental properties of shrinkage cracking of high performance fiber Reinforced cement-based composites", 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-7), 2010, May 23-28, Jeju, South Korea. pp. 1592-1599.
  12. Koide, M., Takewaka, K., Yamaguchi, T., and Niko, M., "A fundamental study on property of shrinkage in shirasu concrete", Proceedings of the japan concrete institute, 2009 Jul, Vol.31, No.1, pp.535-540.