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An Experimental Study on the Mechanical Behavior of Concrete Using Non-Sintered Cement

비소성 시멘트 콘크리트의 역학적 거동에 대한 실험 연구

  • Received : 2011.12.12
  • Accepted : 2012.01.02
  • Published : 2012.02.20

Abstract

If cement could be manufactured with industrial byproducts such as granulated blast furnace slag, phosphogypsum, and waste lime rather than clinker, there would be many advantages, including the maximization of the use of these industrial byproducts for high value-added resources, the conservation of natural resources and energy by omitting the use of clinker, the minimization of environmental pollution problems caused by $CO_2$ discharge, and the reduction of the production cost. For this reason, in this study, mechanical behavior tests of non-sintered cement concrete were performed, and elasticity modulus and stress-strain relationship of non-sintered cement concrete were proposed. Nine test members were manufactured and tested according to reinforcement ratio and concrete compressive strength. According to the test results, there was no difference between general cement concrete and non-sintered cement concrete in terms of flexure and shear behavior.

클링커 대신 고로슬래그, 폐인산석고, 폐석회 등의 산업 부산물을 이용하여 비소성시멘트를 제조하면 산업부산물 재활용, 클링커 제조를 위한 에너지 감소, $CO_2$저감으로 인한 환경오염문제 및 생산원가 저감 등의 장점이 있다. 이러한 이유로 본 연구에서는 비소성 시멘트 콘크리트의 역학적 거동실험을 수행하여 비소성 시멘트 콘크리트의 탄성계수, 응력-변형률 관계를 제안하였다. 또한 철근비, 압축강도를 변수로 9개의 구조 시험체를 제작하였으며, 그 실험 결과 비소성 시멘트 콘크리트의 휨 및 전단 거동 경향은 일반 콘크리트 부재와 크게 차이나지 않는 것으로 나타났다.

Keywords

References

  1. Moon KJ. Characteristics of non-sintered cement and concrete using industrial byproducts [dissertation]. Jeonbuk (Korea): University of Jeonbuk; 2004. 168 p.
  2. Uchikawa H. Gypsum and lime. 1st ed. New York: MacGrawHill; 1990. Chapter 9, Cement; p. 497-505.
  3. Takahashi H. Hardening property of cement mortar adding heavy metal compound and solubility of heavy metal from hardened mortar. J of Cement and concrete research. 1989 Oct 31;19(5):589-602.
  4. Lee SW. An experimental study on the properties of mortar mixing paper ash. Journal of the Korea Institute of Building Construction 2002 Sep;2(3):115-21 https://doi.org/10.5345/JKIC.2002.2.3.115
  5. Ahn MY, Jung SJ. An experimental study on the properties of ultra rapid hardening mortar using magnesia-phosphate cement. Journal of Korea the Institute of Building Construction 2007 Dec;7(4):109-16 https://doi.org/10.5345/JKIC.2007.7.4.109
  6. Jeong SW, Lim NG. Study of non sintered cement mortar using nanoslag and alkali activator. Journal of the Korea Institute of Building Construction 2010 Dec;10(6):61-6. https://doi.org/10.5345/JKIC.2010.12.6.061
  7. Yang IH. An experimental study on flexural behavior of steel fiber reinforced ultra high performance concrete. J of Korea concrete institute. 2009 Dec 31;21(6):737-44. https://doi.org/10.4334/JKCI.2009.21.6.737
  8. Erdem E, Olmez H. The mechanical properties of supersulphated cement containing phosphogypsum. J of Cement and concrete research. 1993 Aug 31;23(4):115-21. https://doi.org/10.1016/0008-8846(93)90141-U
  9. Singh M, Garg M. Phosphogypsum - fly ash cementitious binder - its hydration and strength development. J of Cement and concrete research. 1995 Aug 28;25(4):752-58. https://doi.org/10.1016/0008-8846(95)00065-K
  10. Fedaral highway administration. Material property characterization of ultra-high performance concrete. 1st ed. Washington D.C: FHA; 2006. Chapter 3, High performance concrete; p. 23-49.
  11. Ministry of land, transport affairs. Concrete structural design code. 3rd rev. Seoul: Korea concrete institute; 2008. 425 p.
  12. Park R, Paulay P. Reinforcement concrete structures. 2nd ed. New York: John Wiley & Sons; 1974. Chapter 2, Stress-strain relationships; p. 11-3.
  13. Shin SW, Ghosh SK, Moreno J. Flexural ductility of ultra high strength concrete members. American concrete institute Structural Journal. 1989 Aug 25;86(4):394-400.