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한국건축시공학회 / v.8, no.3, 2008년, pp.75-83 
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강섬유 혼입율이 강섬유보강 고강도 콘크리트의 작업성과 강도특성에 미치는 영향
( Influence of Steel Fiber Volume Ratios on Workability and Strength Characteristics of Steel Fiber Reinforced High-Strength Concrete ) |
| 김윤일;이양근;김명성; 관동대학교 건축학부;관동대학교 대학원, 강원도개발공사;관동대학교 대학원, ㈜한국구조안전기술원;
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| 초 록 |
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| In this paper, concrete material tests were carried out to investigate influence of steel fiber volumn ratios on variations of workability and strength characteristics of steel fiber reinforced high-strength concrete, $50MPa{sim}90MPa$ of compressive strength, according to increase of fiber volume. Test specimens were arranged with six levels of concrete compressive strength and fiber volumn ratios, 0.0%, 0.5%, 1.0%, 1.5%, 2.0%. The test results showed that steel fiber reinforced high-strength concrete($70MPa{sim}90MPa$, 1.5% fiber volumn ratio) with good workability of slump 20cm could be used practically and effects of steel fiber reinforcement in improvement of concrete strength and toughness characteristics such as splitting tensile strength, flexural strength, and diagonal tensioned shear strength, were more distinguished in high-strength concrete than general strength concrete. And the test results indicated that splitting tensile strength of fiber reinforced concrete was proportioned to the product of steel fiber volumn ratios, $V_f(%)$ and sqare root of compressive strength, $sqrt{f_{ck}}$, and the increasing rate was in contrast with that of flexural strength, and increase of diagonal tensioned shear strength was remarkable at steel fiber volumn ratio, 0.5%. |
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| 키워드 |
| 강섬유 보강 콘크리트;고강도 콘크리트;쪼갬인장강도;휨강도;휨인성;사인장 전단강도;Steel-fiber Reinforced Concrete;High-strength Concrete;Splitting Tensile Strength;Flexural Strength;Flexural Toughness;Diagonal Tensioned Shear Strength; |
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한국건축시공학회지 / v.8, no.3, 2008년, pp.75-83
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200824556526632)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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