Browse > Article
http://dx.doi.org/10.4334/JKCI.2010.22.6.753

Bond Characteristics of Ultra High Performance Concrete  

Kook, Kyung-Hun (School of Civil, Environmental and Architectural Engineering, Korea University)
Shin, Hyun-Oh (School of Civil, Environmental and Architectural Engineering, Korea University)
Kwahk, Im-Jong (Korea Institute of Construction Technology)
Yoon, Young-Soo (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Journal of the Korea Concrete Institute / v.22, no.6, 2010 , pp. 753-760 More about this Journal
Abstract
Ultra high performance concrete (UHPC), is characterized by its high compressive strength and advanced tensile behavior that is much superior to those of conventional concrete. In order to apply this new material in practice, the bond characteristics of UHPC were evaluated in this study. Pull-out tests between UHPC and deformed steel rebar were carried out according to the modified RILEM test method, and were verified by finite element analysis. From the test results showed that UHPC presents 5 to 10 times higher bond strength compared to normal strength concrete, this study suggested remarkably reduced development length and concrete cover comparing to existing specifications. The test results of 700 MPa high strength steel rebar demonstrated the applicability of high strength steel to UHPC. In addition, the transfer length measurements of seven-wire strand in UHPC specimens indicated that the transfer length limit set by the current design code is very conservative for UHPC.
Keywords
UHPC; bond; pull-out test; transfer length; high strength steel rebar;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김성욱, 박정준, 강수태, 류금성, 고경택, 이장화, “초고성능 콘크리트의 개발과 활용,” 한국콘크리트학회 봄학술대회 논문집, 20권, 1호, 2008, pp. 1117-1120.
2 한국도로교통협회, “도로교설계기준,” 한국도로교통협회, 2005, 510 pp.
3 한국콘크리트학회, “콘크리트구조설계기준 해설,” 기문당, 2007, 523 pp.
4 American Concrete Institute, “Building Code Requirements for Structural Concrete and Commentary,” ACI 318-08 and ACI 318R-08, Farmington Hill, Mich., 2008, 473 pp.
5 RILEM, Technical Recommendations for the Testing and Use of Construction Materials: RC 6, Bond Test for Reinforcement Steel. 2. Pull-out Test, 1970, pp. 218-220.
6 Hegge, J., Tuchlinski, D., and Kommer, B., “Bond Anchorage Behavior and Shear Capacity of Ultra High Performance Concrete Beams,” Proceedings of the Second International Symposium on Ultra High Performance Concrete, Kassel, Germany, 2008, pp. 351-359.
7 Holschemacher K., WeiBe, D., and Dehn, F., “Influence of the Rebar Position on the Bond Behaviour in High Strength Concrete,” Leipzig Annual Civil Engineering Report(LACER), No. 7, University of Leipzig, Germany, 2002, pp. 135-144.
8 Holschemacher, K., WeiBe, D., and Klotz, S., “Bond of Reinforcement in Ultra High Strength Concrete,” Proceedings of International Symposium on Ultra High Performance Concrete, Kassel, Germany, 2004, pp. 375-388.
9 WeiBe, D. and Holschemacher, K., “Some Aspects about the Bond of Reinforcement in Ultra High Strength Concrete,” Leipzig Annual Civil Engineering Report(LACER), No. 8, University of Leipzig, Germany, 2003, pp. 251-263.
10 신현오, 민경환, 류두열, 곽임종, 윤영수, “강섬유 보강 고강도 콘크리트의 부착 특성,” 한국콘크리트학회 가을 학술대회 논문집, 21권, 2호, 2009, pp. 401-402.
11 김성욱, 강수태, 한상묵, “초고성능 시멘트 복합재의 특성 및 활용 현황,” 콘크리트학회지, 18권, 1호, 2006, pp. 16-21.   과학기술학회마을