Study of the Toughness of Fiber Reinforced Concrete Pavement in Laboratory

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China Journal of Highway and Transport ›› 2012, Vol. 25 ›› Issue (2) : 33-39.

LIU He^1,2, FU Zhi², LIU Yi-han²

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Abstract

In order to get the load-deflection curve of fiber reinforced concrete (FRC), and study the fibers' influence on the toughness of FRC, 8 groups of FRC were molded and tested. The test data were obtained by data acquisition device which could generate load-deflection curve. The effect of fiber type and content on the FRC toughness index were analyzed, and the relation between toughness index and flexural strength were studied. The results show that steel fiber makes a great contribution to flexural strength. Mill-cut steel fiber works well with imitation wire polypropylene fiber in FRC, and the toughness index of the acicular steel fiber reinforced concrete increases with the increase of fiber contents. The toughness index increases with the increase of number and volume percentage of fiber, but the high toughness index specimen may not have the high flexural strength, and flexural strength 6.7 MPa corresponds to the minimum toughness index.

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road engineering / fiber reinforced concrete / experimental research / Toughness / flexural strength

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LIU He, FU Zhi, LIU Yi-han. Study of the Toughness of Fiber Reinforced Concrete Pavement in Laboratory[J]. China Journal of Highway and Transport, 2012, 25(2): 33-39

References

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Received	Published
2011-04-11	2012-03-01
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2014-01-03

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