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한국건축시공학회 / v.8, no.1, 2008년, pp.43-48 
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섬유보강 콘크리트의 역학적 특성에 대한 섬유 체적비와 길이의 영향
( Effect of Volume Fraction and Length of Fiber on the Mechanical Properties of Fiber Reinforced Concrete ) |
| 양근혁;오승진; 목포대학교 건축공학;목포대학교 대학원;
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| 초 록 |
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| Fifteen concrete specimens were mixed and tested to explore the significance and limitation of appling the polyvinyl alcohol (PVA) fiber and steel fiber with end hook to concrete. Main parameters investigated were volume fraction and length of the fibers. The measured mechanical properties of fiber reinforced concrete are analyzed according to the equivalent fiber amount index explaining the adding amount and length of fibers. Test results showed that compressive strength of fiber reinforced concrete was higher than that of concrete with no fiber by $10{sim}20%$. The normalized splitting tensile strength and flexural strength of PVA fiber reinforced concrete were similar to those of concrete with no fiber, whereas those of steel fiber reinforced concrete increased with the increase of the equivalent fiber amount index. In particular, much higher ductile behavior was observed in steel fiber reinforced concrete than in PVA reinforced concrete, indicating that the slope of descending branch of load-displacement relationship of steel fiber reinforced concrete decreased with the increase of the volume fraction and length of the fiber. |
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| 키워드 |
| 섬유보강 콘크리트;강섬유;PVA 섬유;섬유길이;섬유체적비;등가 섬유양 지수;Fiber reinforced concrete;steel fiber;PVA fiber;fiber length;volume fraction of fiber;equivalent fiber amount index; |
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한국건축시공학회지 / v.8, no.1, 2008년, pp.43-48
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814364024444)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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