Browse > Article
http://dx.doi.org/10.4334/JKCI.2005.17.2.263

An Experimental Study on the Mechanical Properties of HPFRCCs Reinforced with the Micro and Macro Fibers  

Kim Moo-Han (Dept. of Architectural Engineering, Chungnam National University)
Kim Jae-Hwan (Dept. of Architectural Engineering, Chungnam National University)
Kim Yong-Ro (Dept. of Architectural Engineering, Chungnam National University)
Kim Young-Duck (Dept. of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.17, no.2, 2005 , pp. 263-271 More about this Journal
Abstract
HPFRCC(High Performance Fiber Reinforced Cementitious Composite) is a class of FRCCs(Fiber Reinforced Cementitious Composites) that exhibit multiple cracking. Multiple cracking leads to improvement in properties such as ductility, toughness, fracture energy, strain hardening, strain capacity, and deformation capacity under tension, compression, and bending. These improved properties of HPFRCCs have triggered unique and versatile structural applications, including damage reduction, damage tolerance, energy absorption, crack distribution, deformation compatibility, and delamination resistance. These mechanical properties of HPFRCCs become different from the kinds and shapes of used fiber, and it is known that the effective size of fiber in macro crack is different from that in micro crack. This paper reports an experimental findings on the mechanical properties of HPFRCCs reinforced with the micro fiber(PP50, PVA100 and PVA200) and macro fiber(PVA660, SF500). Uniaxial compressive tests and three point bending tests are carried out in order to compare with the mechanical properties of HPFRCCs reinforced with micro fibers or hybrid fibers such as compressive strength, ultimate bending stress, toughness, deformation capacity and crack pattern under bending, etc.,
Keywords
HPFRCC; hybrid fiber; bending stress-displacement curve; multiple cracking; toughness;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Markovic, I., 'Development of High Performance Hybrid Fibre Concrete,' HPFRCCs, Proceedings of the 4th International RILEM Workshop, Ann USA 2003, pp.277-300
2 김무한 외, '섬유의 종류, 형상 및 치환율에 따른 HPFRCC의 공학적 특성에 관한 실험적 연구', 한국건축시공학회 학술.기술논문발표회, 3권 2호, 2003. pp.59-62
3 Victo C. Li and Large Volume, 'High-Performance Applications of Fibers in Civil Engineering,' Journal of Applied Polymer Science, Vol.83, 2002, pp.660-686   DOI   ScienceOn
4 社團法人, 日本コンクリ-ト工學協會, '高靭性セメント複合材料を知る.作る.使う', 高靭性セメント複合材料の性能評價と構造利用硏究委員會報告書, 2002. 1
5 Hiroshi Fukuyama, 'Material Design of Hybrid Fiber Reinforced Cementitious Composites,' Proceedings of the JCI International Workshop on Ductile Fiber Reinforced Cementitious Composites-Application and Evaluation, Japan, 2002. 10, pp.85-94
6 Naaman, A. E., 'Strain Hardening and Deflection Hardening Fiber Reinforced Cement Composites,' Proceedings of the 4th International RILEM Workshop, High Performance Fiber Reinforced Cement Composites (HPFRCC4), Ann USA, 2003, pp.95-113
7 Markovic, I., 'Development of High Performance Hybrid Fiber Concrete,' Proceedings of the 4th International RILEM Workshop, High Performance Fiber Reinforced Cement Composites(HPFRCC4), Ann USA 2003, pp.277-300
8 김무한 외, '섬유종류 및 잔골재용적비에 따른 HPFRCC의 공학적 특성에 관한 실험적 연구', 대한건축학회 봄 학술발표대회 논문집, Vol.24, No.1, 2004. 4, pp.315-318
9 Baggott, R, 'Fiber-Matrix Interfaces,' Proceedings of the 2nd International RILEM Workshop, High Performance Fiber Reinforced Cement Composites (HPFRCC2), Ann USA,1996, pp.149-191
10 Cynthia Wu, 'Mcromechanical Tailoring of PVA-ECC for Structural Applications,' Doctoral Thesis in the University of Michigan, USA, 2001