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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.41 No.3
- 발행연도
- 2021.11
- 수록면
- 317 - 334 (18page)
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This study compares between the mechanical properties of concrete either reinforced with recycled plastic (RP) or end-hooked steel (EHS) fibers with volume fractions of 1, 2 and 3%. Also, the effects of the fiber type and volume fraction on flexural responses were investigated using experimental program composed of seven reinforced concrete (RC) beams. Generally, results showed that the RP and EHS fibers remarkably enhanced both the mechanical characteristics of concrete and the flexural capacity of RC beams. Specifically, concrete matrix that reinforced with 2% volume fraction of RP or EHS fibers exhibited the highest capacities among all tested specimens. On the other hand, the compressive and the tensile strengths of the fibrous concrete which strengthened with 3% volume fraction (either RP or EHS fibers) were lower than their counterparts that reinforced with lower volume fraction (2%). As the fiber volume fraction increased up to 2%, the peak load of the RC beams increased followed by a reduction for higher fiber volumes. The peak load of the RC beam specimens reinforced with 2% of RP and EHS fibers were 57.1 kN and 60.7 kN, respectively compared to 39.6 kN for the control RC beam. Both RP and EHS fibers had a positive effect on the (effective/gross) flexural rigidity ratio, especially when used with volume fraction lower than 3%. RC beams reinforced with 1% of RP and EHS fibers yielded higher ductility in comparison with 2 and 3%. An analytical model constructed based on the distribution of stress-strains along the height of the RC beam was used to estimate the bending moments at different stages. Results well agreed with the experimental records.
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참고문헌 (62)
참고문헌 신청
Wasim Abbass / 2018 / Evaluation of mechanical properties of steel fiber reinforced concrete with different strengths of concrete / Construction and Building Materials 168:556~569
1996 / ACI Committee 544 Design considerations for steel Fiber reinforced concrete, ACI 544.4R-88 / American Concrete Institute
H. Akbarzadeh / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer / Materials & Design 31(3):1130~1147
Burcu Akcay / 2019 / Do polymer fibres affect the distribution of steel fibres in hybrid fibre reinforced concretes? / Construction and Building Materials 228:116732
Al-Hadithi, A. I. / 2018 / The effects of adding waste plastic fibers on the mechanical properties and shear strength of reinforced concrete beams / Iraqi J. Civil Eng 12(1):110~124
1996 / ACI Committee 544 Design considerations for steel Fiber reinforced concrete, ACI 544.4R-88 / American Concrete Institute
H. Akbarzadeh / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer / Materials & Design 31(3):1130~1147
Burcu Akcay / 2019 / Do polymer fibres affect the distribution of steel fibres in hybrid fibre reinforced concretes? / Construction and Building Materials 228:116732
Al-Hadithi, A. I. / 2018 / The effects of adding waste plastic fibers on the mechanical properties and shear strength of reinforced concrete beams / Iraqi J. Civil Eng 12(1):110~124
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