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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.12 No.1

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Study on flexural toughness and flexural tensile strength of fiber reinforced concrete by mixture ratio of different fibers

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2010, v.12 no.1, pp.51-60



& (2010). Study on flexural toughness and flexural tensile strength of fiber reinforced concrete by mixture ratio of different fibers. (사)한국터널지하공간학회, 12(1), 51-60.

Abstract

Recently, a new type of polyolefin fiber having a good mechanical properties is being developed, and it is necessary to examine a possibility for the new fiber together to be used as a reinforcing fiber with other types of fiber or by itself. The objective of this study is to find flexural toughness and tensile strength of concrete reinforced with steel and polyolefin fibers. Four point beam tests were performed with 324 specimens following two standard tests methods: KS F 2566 and ASTM C 1399-02. From the test results, the effects of volume fraction of fibers, and aspect ratio of steel fiber on the toughness and tensile strength were investigated, and the optimal ratio of steel fiber to polyolefin fiber was suggested.

keywords
Fiber reinforced, flexural toughness, residual strength, flexural tensile strength, 섬유보강, 휨 인성, 휨 인장강도, 잔류강도, Fiber reinforced, flexural toughness, residual strength, flexural tensile strength

Reference

1.

1. 박홍용, 안영진 (2000), “강섬유 보강 콘크리트의 균열후 인장강도”, 대한 토목학회 2000년도 학술발표회 논문집, pp. 447-450.

2.

2. 박홍용, 안영진 (2000), “편심 축하중을 받는 강섬유 보강 콘크리트 기둥의 실험적 연구”, 한국 콘크리트 학회가을 학술발표회 논문집, 제12권, 제2호, pp. 857-860.

3.

3. 한국표준협회 KS F 2405 (2005), “콘크리트 압축강도 시험방법”.

4.

4. 한국표준협회 KS F 2566 (2005), “강섬유 보강 콘크리트의 휨 인성 시험방법”.

5.

5. ASTM C 1018 (1997), “Standard test method for flexural toughness and first-crack strength of fiber-reinforced concrete (using beam with third-point loading)”.

6.

6. ASTM C 1399(2007), “Standard test method for obtaining average residual-strength of fiber-reinforced concrete”.

7.

7. Bernhard R. Maidl(1995), “Steel fibre reinforced concrete”, Ernst & Sohn.

8.

8. Deutscher Beton Verein e.V (1992), Merkblatt, Bemessungsgrundlager fur Stahlfaserse ton im Tunnelban, Fassung.

9.

9. JSCE-SF4 (1984), “method of tests for flexural strength and flexural toughness of steel fiber reinforced concrete,” Concrete library of JSCE, V3, Japan Society of Civil Engineers, pp. 58-61.

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