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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.9 No.4
- 발행연도
- 2015.12
- 수록면
- 475 - 486 (12page)
이용수
초록· 키워드
오류제보하기
Mode II fracture toughness (K<SUB>IIc</SUB>) of fiber reinforced concrete (FRC) has been widely investigated under various patterns of test specimen geometries. Most of these studies were focused on single type fiber reinforced concrete. There is a lack in such studies for hybrid fiber reinforced concrete. In the current study, an experimental investigation of evaluating mode II fracture toughness (K<SUB>IIc</SUB>) of hybrid fiber embedded in high strength concrete matrix has been reported. Three different types of fibers; namely steel (S), glass (G), and polypropylene (PP) fibers were mixed together in four hybridization patterns (S/G), (S/PP), (G/PP), (S/G/PP) with constant cumulative volume fraction (V<SUB>f</SUB>) of 1.5 %. The concrete matrix properties were kept the same for all hybrid FRC patterns. In an attempt to estimate a fairly accepted value of fracture toughness K<SUB>IIc</SUB>, four testing geometries and loading types are employed in this investigation. Three different ratios of notch depth to specimen width (a/w) 0.3, 0.4, and 0.5 were implemented in this study. Mode II fracture toughness of concrete KIIc was found to decrease with the increment of a/w ratio for all concretes and test geometries. Mode II fracture toughness KIIc was sensitive to the hybridization patterns of fiber. The (S/PP) hybridization pattern showed higher values than all other patterns, while the (S/G/PP) showed insignificant enhancement on mode II fracture toughness (K<SUB>IIc</SUB>). The four point shear test set up reflected the lowest values of mode II fracture toughness K<SUB>IIc</SUB> of concrete. The non damage defect concept proved that, double edge notch prism test setup is the most reliable test to measure pure mode II of concrete.
목차
Abstract
1. Introduction
2. Experimental Work
3. Results and Discussion
4. Conclusions
References
참고문헌 (31)
참고문헌 신청
[기타자료] - / 2011 / ACI Commitee 544. Fiber reinforced concrete / American Concrete Institute
[학술지(정기간행물)] - Al Hazmi, H. S. J. / 2012 / Fracture energy of hybrid polypropylene–steel fiber high strength concrete / High Performance Structure and Materials 6 : 309 ~ 318
[학술지(정기간행물)] - Banthia, N. / 2004 / Hybrid fiber reinforced concrete:Fiber synergy in high strength matrices / RILEM, Materials and Structures 37 (274) : 707 ~ 716
[학술지(정기간행물)] - Banthia, N. / 1995 / Uniaxial tensile response of microfiber reinforced cement composites / Journal of Materials and Structures, RILEM 28 (183) : 507 ~ 517
[학술대회논문] - Banthia, N. / 1991 / Micro reinforced cementitious materials / Materials Research Society Symposia Proceedings, Materials Research Society 211 : 25 ~ 32
[학술지(정기간행물)] - Al Hazmi, H. S. J. / 2012 / Fracture energy of hybrid polypropylene–steel fiber high strength concrete / High Performance Structure and Materials 6 : 309 ~ 318
[학술지(정기간행물)] - Banthia, N. / 2004 / Hybrid fiber reinforced concrete:Fiber synergy in high strength matrices / RILEM, Materials and Structures 37 (274) : 707 ~ 716
[학술지(정기간행물)] - Banthia, N. / 1995 / Uniaxial tensile response of microfiber reinforced cement composites / Journal of Materials and Structures, RILEM 28 (183) : 507 ~ 517
[학술대회논문] - Banthia, N. / 1991 / Micro reinforced cementitious materials / Materials Research Society Symposia Proceedings, Materials Research Society 211 : 25 ~ 32
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