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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.59 No.1
- 발행연도
- 2016.1
- 수록면
- 133 - 151 (19page)
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초록· 키워드
오류제보하기
Self-Compacting Concrete (SCC) has been originally developed in Japan to offset a growing shortage of skilled labors, is a highly workable concrete, which is not needed to any vibration or impact during casting. The utilizing of fibers in SCC improves the mechanical properties and durability of hardened concrete such as impact strength, flexural strength, and vulnerability to cracking. The purpose of this investigation is to determine the effect of steel fibers on mechanical performance of traditionally reinforced Self-Competing Concrete beams. In this study, two mixes Mix 1% and Mix 2% containing 1% and 2% volume friction of superplasticizer are considered. For each type of mixture, four different volume percentages of 60/30 (length/diameter) fibers of 0.0%, 1.0%, 1.5% and 2% were used. The mechanical properties were determined through compressive and flexural tests. According to the experimental test results, an increase in the steel fibers volume fraction in Mix 1% and Mix 2% improves compressive strength slightly but decreases the workability and other rheological properties of SCC. On the other hand, results revealed that flexural strength, energy absorption capacity and toughness are increased by increasing the steel fiber volume fraction. The results clearly show that the use of fibers improves the post-cracking behavior. The average spacing of between cracks decrease by increasing the fiber volume fraction. Furthermore, fibers increase the tensile strength by bridging actions through the cracks. Therefore, steel fibers increase the ductility and energy absorption capacity of RC elements subjected to flexure.
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참고문헌 (34)
참고문헌 신청
2007 / ACI Committee 237R-07, Self -consolidating concrete / American Concrete Institute
1990 / ACI Committee 544, State-of-the-art report on fiber reinforced concrete, ACI Manual of Concrete Practice, Part 5 :22
Aggarwal, P. / 2008 / Self-compacting concrete - procedure for mix design / Leonardo Elec. J. Pract. Tech 12:15~24
1997 / ASTM C 1018, Standard Test Method For Flexural Toughness And First-Crack Strength Of Fiber-Reinforced Concrete (using beam with third-point loading) / American Standards for Testing and Materials
2003 / ASTM C 33, Standard specification for concrete aggregates / American Standards for Testing and Materials
1990 / ACI Committee 544, State-of-the-art report on fiber reinforced concrete, ACI Manual of Concrete Practice, Part 5 :22
Aggarwal, P. / 2008 / Self-compacting concrete - procedure for mix design / Leonardo Elec. J. Pract. Tech 12:15~24
1997 / ASTM C 1018, Standard Test Method For Flexural Toughness And First-Crack Strength Of Fiber-Reinforced Concrete (using beam with third-point loading) / American Standards for Testing and Materials
2003 / ASTM C 33, Standard specification for concrete aggregates / American Standards for Testing and Materials
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