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http://dx.doi.org/10.9711/KTAJ.2010.12.1.051

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

Park, Hong-Yong (명지대학교 토목환경공학과)
Ryu, Jong-Hyun (GS건설 기술연구소)
Jo, Yong-Bum (명지대학교 토목환경공학과)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.12, no.1, 2010 , pp. 51-60 More about this Journal
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;
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