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Effect of Waste Marble Powder on the Fundamental Properties of High Fluidity Concrete

폐 대리석 분말을 혼입한 고유동 콘크리트의 기초적 특성에 대한 실험적 연구

  • Lee, Yong-Moo (Department of Architectural Engineering, Pusan National University) ;
  • Shin, Sang-Yeop (Department of Architectural Engineering, Pusan National University) ;
  • Kim, Young-Su (Department of Architectural Engineering, Pusan National University)
  • Received : 2014.09.17
  • Accepted : 2015.02.05
  • Published : 2015.04.20

Abstract

The marble powder is a by-product that can be freely collected during the manufacturing process of marble, such as sawing, shaping, and polishing. Disposal of this waste powder is one of the environmental problems worldwide today. Therefore, this study investigated to solve this problem by consuming the waste marble powder in high fluidity concrete, as a pore filler. For this purpose, the waste marble powder was used as a binder replacing 5%, 10%, 15%, and 20% of cement in high fluidity concrete. After mixing, slump flow test, time-to-reach the slump flow of 500mm test, O-lot test and U-box test were conducted with fresh concrete. For the hardened concrete, compressive strength was determined at the age of 28 days. According to the test results, the workability of high fluidity concrete increased with the powder of 15% replacement, and the compressive strength of high fluidity concrete also increased with the same amount of powder.

본 연구는 대리석가공과정에 발생하는 부산물인 폐 대리석 분말을 고유동 콘크리트의 유동성, 충전성 및 강도특성에 어떠한 영향을 주는지를 분석하였다. 실험결과, 폐 대리석 분말을 혼입한 굳지 않은 고유동 콘크리트 특성을 살펴보면 유동성이 증가하였고, 재료분리 저항성, 충전성이 우수하였다. 또한 경화한 고유동 콘크리트에서 압축강도는 폐 대리석 분말의 치환율 15%까지 모든 재령에서 압축강도가 증가하여 폐 대리석 분말의 최적 치환율은 15% 이내가 적정할 것으로 판단된다. 이상의 실험결과를 바탕으로 폐 대리석 분말을 고유동 콘크리트의 충전재로 활용하면 산업부산을 활용할 수 있어 환경오염방지와 콘크리트 제조시 원가절감의 이점을 동시에 달성할 수 있을 것으로 판단된다.

Keywords

References

  1. Felekoglu B, Turkel S, Baradan B. Effect of water/cement ratio on the fresh and hardened properties of self-compacting concrete. Building and Environment. 2007 Apr;42(4):1795-802. https://doi.org/10.1016/j.buildenv.2006.01.012
  2. Ye G, Liu X, De Schutter G, Poppe A-M, Taerwe L. Influence of limestone powder used as filler in SCC on hydration and microstructure of cement pastes. Cement and Concrete Composition. 2007 Feb;29(2):94-102. https://doi.org/10.1016/j.cemconcomp.2006.09.003
  3. Poppe AM, Schutter GD. Cement hydration in the presence of high filler contents. Cement and Concrete Research. 2005 Dec;35(12):2290-9. https://doi.org/10.1016/j.cemconres.2005.03.008
  4. Kou SC, Poon CS. Properties of self-compacting concrete prepared with coarse and fine recycled concrete aggregates. Cement and Concrete Composition. 2009 Oct;31(9):622-7. https://doi.org/10.1016/j.cemconcomp.2009.06.005
  5. Kim JH, Yoon SC, Jee NY. The effect of combined aggregates on fluidity of the high fluid concrete containing GGBFS. Journal of the Korea Institute of Buildung Construction. 2003 Dec;3(4)79-86. https://doi.org/10.5345/JKIC.2003.3.4.079
  6. Jang HO, Jee NY. An experimental study on the mising of normal strength and high fluidity concrete using ground granulated blast furnace slag. Journal of Architectural Institute of Korea. 2003 Jun;29(6):81-8.
  7. Lee SH, Kim HJ, Jung YW. Influence of the improveal grain shape of coarse aggregates on compactability of high performance concrete. Journal of Concrete Institute of Korea. 2000 Apr;12(4):103-11.
  8. Jeong JE, Lee JC, Yang KY, So KH. Sludge produced by stone block manufacturing process as concrete admixtures. Journal of the Korea Institute of Building Construction. 2008 Dec;8(6):83-9. https://doi.org/10.5345/JKIC.2008.8.6.083
  9. Felekoglu B, Turkel S, Baradan B. Effect of water/cement ratio on the fresh and hardened properties of self-compacting concrete. Building and Environment. 2007 April;42(4):1795-1802. https://doi.org/10.1016/j.buildenv.2006.01.012
  10. Safiwi MI, IwakiI, Miura T. A study on the applicability of vibration in fresh high fluidity concrete. Cement and Concrete Research. 2005 Sep;35(9):1834-45. https://doi.org/10.1016/j.cemconres.2004.10.031
  11. Goldman, A. and Bentur, A. The influence of micro-fillers on enhancement of concrete strength. Cement and Concrete Research, 1993 Jul;23(4):962-72. https://doi.org/10.1016/0008-8846(93)90050-J