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A Study for Application of 180 MPa Ultra High Performance Concrete to Compressive Members

180MPa 초고성능 콘크리트의 압축 부재에의 적용성에 대한 연구

  • Min, Kyung-Hwan (Research Institute for Engineering & Technology, Chungcheong University) ;
  • Choi, Hong-Shik (Department of Civil Engineering, Chungcheong University)
  • Received : 2015.06.02
  • Accepted : 2015.07.16
  • Published : 2015.07.31

Abstract

In the actual research fields, the studies for applications of 180 MPa ultra high performance concrete (UHFRCC) to compressive members are limited due to its very high compressive strength. In this study, in order to find its practical use, UHPC was producted by using twin-shaft mixer batch plant. Also, to get basic research data for the design specification of UHPC compressive members, a series of draft experiments, including short columns with square and circular sections, were performed and its failure modes and behaviors were assessed.

180MPa급 초고성능 콘크리트는 높은 압축강도로 인해 압축 부재에 대한 연구 결과가 부족한 실정이다. 본 연구에서는 UHPC의 적용성 향상을 위해 트윈 샤프트 믹서 배치 플랜트에서 생산성을 평가하였다. 또한 설계 방안을 제시하기 위한 기초 자료를 획득하기 위해 사각 기둥과 원형 기둥에 대한 중심축하중 실험을 수행하여 파괴 형태와 거동을 평가하였다.

Keywords

References

  1. B.-S. Kim, H.-K. Park, S.-Y. Park, Y.-J. Kim, W.-J. Chin, E.-S. Choi, H.-H Kim, J.-H. Kim, and W.-J. Kim, "Design and Construction of Innovative UHPC Pedestrian Cable Stayed Bridge in Korea", Proceedings of IABSE Symposium Bangkok 2009, 2009, D-document/226_07_01.pdf. DOI: http://dx.doi.org/10.2749/222137809796088657
  2. AFGC Scientific and Technical Documents, Ultra High Performance Fibre- Reinforced Concretes - Interim Recommendations, 2002, French Association of Civil Engineering (Association Francaise de Genie Civil)
  3. Droll, K., "Influence of additions on ultra high performance concretes - grain size optimization." Proceedings of the International Symposium on Ultra-High Performance Concrete, Kassel, Germany, 2004, pp.285-301.
  4. D.-Y. Yoo, J.-J. Park, S.-W. Kim, and Y.-S. Yoon, " Evaluating Early Age Shrinkage Behavior of Ultra High Performance Cementitious Composites (UHPCC) with CSA Expansive Admixture and Shrinkage Reducing Agent, Journal of the Korea Concrete Institute, Vol. 23, No. 4, 2011, pp.441-448. DOI: http://dx.doi.org/10.4334/JKCI.2011.23.4.441
  5. Empelmann, M, Teutsch, M., and Steven, G., "Load-Bearing Behaviour of Centrically Loaded UHPFRC-Column," Proceedings of the 2nd International Symposium on Ultra High Performance Concrete, Kassel, Germany, 2008, pp.521-528.
  6. Escobar, M., Freytag, B., Linder, J., and Sparowitz, L., "Experimentelle und numerische Untersuchungen zum Beulen von dunnen Scheiben aus UHPFRC unter Druckbeanspruchung", Beton und Stahlbetonbau, Vol, 107, No 1, 2012, pp.2-14. https://doi.org/10.1002/best.201100026
  7. Voort, T.V., Suleiman, M., and Sritharan, S. Design and Performance Verification of UHPC Piles for Deep Foundations, Iowa State University, Final Report of IHRB Project TR-558, IA, 2008, United States.