Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Study on the Mineral Admixture Replacement Ratio for Field Application of Concrete with High Volume Mineral Admixture

혼화재 다량 치환 콘크리트의 현장 적용을 위한 혼화재 치환율에 관한 연구

  • Received : 2013.08.08
  • Accepted : 2013.09.09
  • Published : 2013.09.30
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Abstract

A variety of researches on the concrete with high volume mineral admixture have increased in recent years. In fact, it is very important to find appropriate replacement ratio of concrete with high volume mineral admixture in order to apply in the field. In this study, compressive strength according to fly ash and blast furnace slag replacement ratio as well as curing temperature was measured in the conditions of obtaining the same workability in order to examine the characteristics of concrete with high volume mineral admixture. In conclusion, it was found that the compressive strength at the age of 3 days decreased by 1.4MPa and the compressive strength at the age of 28 days decreased by 3.8MPa when the fly ash replacement ratio increased by 10%. Also, it was found that the compressive strength at the age of 3 days decreased by 1.0MPa and the compressive strength at the age of 28 days decreased by 0.9MPa when the blast furnace slag replacement ratio increased by 10%. Through the tests, we obtained the basic data for developing the future research on the concrete with high volume mineral admixture for housing structure.

최근 플라이애시 및 고로슬래그 미분말을 다량 치환하는 콘크리트에 대한 연구가 활발히 진행되고 있다. 혼화재 다량 치환 콘크리트를 실제 현장에서 골조용으로 적용하기 위해서는 적정 치환율을 도출하는 것이 중요하다. 이에 본 연구에서는 혼화재 다량 치환 콘크리트의 특성을 파악하기 위해 작업성을 동일하게 확보한 조건에서 플라이애시 및 고로슬래그 미분말의 치환율 및 양생온도에 따른 압축강도의 변화를 측정하였다. 검토 결과, 플라이애시의 치환율이 10% 증가할시 재령 3일 압축강도는 약 1.4MPa, 재령 28일 압축강도는 약 3.8MPa가 감소하는 것으로 나타났으며, 고로슬래그의 치환율이 10% 증가할시 재령 3일 압축강도는 약 1.0MPa, 재령 28일 압축강도는 약 0.9MPa가 감소하는 것으로 나타났다. 본 연구를 통해 향후 공동주택의 골조용 혼화재 다량 치환 콘크리트의 연구개발을 위한 기초자료를 확보할 수 있었다.

Keywords

References

  1. Khan, M. S., Prasad, J., Abbas, H. (2013). "Effect of High Temperature on High-Volume Fly Ash Concrete," Arabian Journal for Science and Engineering, 38(6), pp. 1369-1378. https://doi.org/10.1007/s13369-013-0606-1
  2. Li, Y., Jia, L., Liang, X.L. (2013). "A experimental study on the influence of fly ash, slag powder on the property of concrete," Applied Mechanics and Materials, 357-360, pp. 582-587. https://doi.org/10.4028/www.scientific.net/AMM.357-360.582
  3. Lee, N.K., Lee, H.K. (2013). "Setting and mechanical properties of alkali-activated fly ash/slag concrete manufactured at room temperature," Construction and Building Materials, 47, pp. 1201-1209. https://doi.org/10.1016/j.conbuildmat.2013.05.107
  4. Duran-Herrera, A., Juarez, C.A., Valdez, P., Bentz, D.P. (2011). "Evaluation of sustainable high-volume fly ash concretes," Cement and Concrete Composites, 33(1), pp. 39-45. https://doi.org/10.1016/j.cemconcomp.2010.09.020
  5. Van Den Heede, P., Gruyaert, E., De Belie, N. (2010). "Transport properties of high-volume fly ash concrete: Capillary water sorption, water sorption under vacuum and gas permeability," Cement and Concrete Composites, 32(10), pp. 749-756. https://doi.org/10.1016/j.cemconcomp.2010.08.006
  6. Bentz, D.P., Ferraris, C.F. (2010). "Rheology and setting of high volume fly ash mixtures," Cement and Concrete Composites, 32(4), pp. 265-270. https://doi.org/10.1016/j.cemconcomp.2010.01.008
  7. Sukumar, B., Nagamani, K., Srinivasa Raghavan, R. (2008). "Evaluation of strength at early ages of self-compacting concrete with high volume fly ash," Construction and Building Materials, 22(7), pp. 1394-1401. https://doi.org/10.1016/j.conbuildmat.2007.04.005
  8. Yazici, Halit. (2008). "The effect of silica fume and high-volume Class C fly ash on mechanical properties, chloride penetration and freeze-thaw resistance of self-compacting concrete," Construction and Building Materials, 22(4), pp. 456-462. https://doi.org/10.1016/j.conbuildmat.2007.01.002
  9. Dinakar, P., Babu, K. G., Santhanam, Manu. (2008). "Durability properties of high volume fly ash self compacting concretes," Cement & Concrete Composites, 30(10), pp. 880-886. https://doi.org/10.1016/j.cemconcomp.2008.06.011
  10. Sahmaran, Mustafa, Keskin, Suleyman B., Ozerkan, Gozde. (2008). "Self-healing of mechanically-loaded self consolidating concretes with high volumes of fly ash," Cement & Concrete Composites, 30(10), pp. 872-879. https://doi.org/10.1016/j.cemconcomp.2008.07.001

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