Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Evaluation of Strength and Fire Resistance Performance of Mortar Mixed with Oyster Shell and Egg Shell

굴 패각과 난각을 혼합한 모르타르의 강도 및 내화성능 평가

  • Hae-Na Kim (Graduate School, Kongju National University) ;
  • Ui-In Jung (Department of Architectural Engineering, Kongju National University) ;
  • Bong-Joo Kim (Department of Architectural Engineering, Kongju National University)
  • 김해나 (공주대학교 건축공학과) ;
  • 정의인 (공주대학교 미래도시융복합연구소) ;
  • 김봉주 (공주대학교 그린스마트공학과)
  • Received : 2023.12.05
  • Accepted : 2023.12.13
  • Published : 2023.12.30
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Abstract

This study is part of the research on fire-resistant materials to prepare for changing fire behavior, oyster shell and egg shell, which are natural calcium carbonate materials, were substituted as fine aggregates. The purpose of this study was to evaluate the strength and fire resistance performance according to the substitution rate, and to provide data for use as fire resistance material. Oyster shells and egg shells were substituted with 10~50 % of the fine aggregate, respectively, and tested for strength and Simplified heating according to the KS test method. Although the strength of OS was measured to be higher than that of ES, the backside temperature was also measured to be higher. As a result, it is recommended to use fireproof boards with OS where strength performance is required, such as explosive fires, Where high fire resistance performance is required, such as high-temperature fires over 1000 ℃, fireproof boards with ES can be selected according to the application.

본 연구에서는 달라지는 화재 성상에 대비하기 위한 내화재료 연구의 일환으로 천연 탄산칼슘 재료인 굴 패각과 난각을 각각 잔골재로 치환하여 치환율에 따른 강도 및 내화성능을 평가하여 내화 재료로 사용하기 위한 자료를 제공하고자 하였다. 굴 패각과 난각은 각각 잔골재 대비 10~50 %를 치환하였고, KS 시험방법에 준하여 강도측정 및 간이가열 실험을 진행하였다. OS를 치환한 경우는 ES를 치환한 경우보다 강도가 높게 측정되었지만 이면온도 또한 높게 측정되었다. 이를 통해 폭발성 화재같이 강도성능이 요구되는 곳은 OS를 혼합한 내화보드를 사용하고, 1000 ℃이상의 고온화재 같이 높은 내화성능이 요구되는 곳은 ES를 혼합한 내화보드를 사용하는 등 용도에 맞게 선택할 수 있을 것으로 사료된다.

Keywords

Acknowledgement

본 연구는 공주대학교 연구년 사업 및 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행되었습니다(No.2022R1I1A307346212).

References

  1. Baek, E.Y., Lee, W.G. (2020). A study on the rational recycling of oyster-shell, The Journal of Fisheries Business Administration, 51(2), 71-87 [in Korean]. https://doi.org/10.12939/FBA.2020.51.2.071
  2. Choi, A.Y., Lee, S.H., Park, T.H., Kim, H.S. (2021). Comparative analysis of real fires for electric vehicles and gasoline vehicles, Journal of the Korean Society of Hazard Mitigation, 21(6), 119-124 [in Korean]. https://doi.org/10.9798/KOSHAM.2021.21.6.119
  3. Ha, S.H., Cha, M.K., Kim, K., Kim, S.H., Kim, Y. (2017). Mineralogical and chemical characteristics of the oyster shells from Korea, Journal of the Mineralogical Society of Korea, 30(4), 149-159 [in Korean]. https://doi.org/10.9727/jmsk.2017.30.4.149
  4. Her, S.W., Suh, H.W., Park, J.Y., Im, S.M., Bae, S.C. (2020). A sustainable and viable method to recycle oyster shell waste as an alternative of limestone in limestone calcined clay cement(LC3 ), Journal of t he Korean Recycled Construction Resources Institute, 8(2), 219-226 [in Korean].
  5. Jung, U.I. (2018). A St udy on Fire Resistance and Strength Properties using Oyster Shells, Ph.D Thesis, Gongju University [in Korean].
  6. Jung, U.I., Kim, B.J. (2017). A study on particle-size distribution and collect rate of the oyster shells as breaking and crushing, Journal of t he Korean Recycled Construction Resources Institute, 5(4), 458-465 [in Korean].
  7. Kim, H.N. (2021). Study on the Strength and Fire Resistance Properties of Mortar Mixed with Oyster Shell Powder and Egg Shell Powder, Master's Thesis, Gongju University [in Korean].
  8. Kang, S.G., Kim, D.E., Seo, D.G., Kim, D.J., Kim, J.H., Kwon, Y.J. (2014). A study on the experimental to establish combustion properties DB accordance to vehicle model categorizes at parking space, Journal of The Korean Society of Hazard Mitigation, 14(1), 27-34 [in Korean]. https://doi.org/10.9798/KOSHAM.2014.14.1.27
  9. Lee, H.S., Park, D.W., Woo, D.S. (2009). A study on physicochemical and calcination processed characteristic of oyster shell, Journal of t he Korea Academia-Industrial Cooperation Society, 10(12), 3971-3976 [in Korean]. https://doi.org/10.5762/KAIS.2009.10.12.3971
  10. Lee, J.W., Choi, S.H., Kim, S.H., Cha, W.S., Kim, K., Moon, B.K. (2018). Mineralogical changes of oyster shells by calcination: a comparative study with limestone, Economic and Environmental Geology, 51(6), 484-492 [in Korean].
  11. Lee, M.H. (2008). A study of test on the improvement of the performance of fire-resistance board made of inorganic polymer, Journal of Architectural Institute of Korea Structure & Construction, 24(11), 119-126 [in Korean].
  12. Lee, S.J. (2013). Development of Refractory Materials to Improve Fire Resistance Performance of Concrete Structures, Master's Thesis, Kumoh Institute of Technology [in Korean].
  13. Nys, Y., Gautron, J. (2007). Structure and formation of the eggshell, In Bioactive Egg Compounds, Berlin, Heidelberg: Springer Berlin Heidelberg, 99-102.
  14. Seo, E.S. (2020). Basic Study on the Improvement of Mortar Fire Resistance in Egg Shell Powder, Master's Thesis, Gongju University [in Korean].
  15. Yang J.H., Ryu. K.W., Kim. J.H., Shin. L.Y., Ko. J.C. (2019) Characteristics of phosphorus removal and reaction crystals using calcined oyster shell, Journal of the Korean Society for Environmental Technology, 20(4), 236-242. https://doi.org/10.26511/JKSET.20.4.3