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Improved Bending Strength and early Crack-Resistance Performance of Engineered Cementitious Composites Reinforced by Hybrid-Fiber

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Abstract:

The bending strength and crack-resistance performance of blank concretes are poor, which are not favorable to the sustainable development of infrastructure. Engineered cementitious composite (ECC) is a high performance fiber-reinforced cementitious composite designed with micromechanical principles, which can improve concrete bending performance to prolong service life and to reduce maintenance cost of infrastructure, so there is important significance for sustainable development of infrastructure. In this study, we have experimentally evaluated the effectiveness of bending and crack-resistance performance of concretes reinforced by different kinds of fibers which include UF500 cellulose fiber (UF500), polyvinyl alcohol (PVA) fiber, polypropylene (PP) fiber and hybrid-fiber (PVA and UF500 cellulose fibers), respectively. The bending performance of concrete with different kinds of fibers is better than that of blank concrete. In addition, early crack-resistance performance of hybrid-fibres enhanced samples has been improved as confirmed by the three-point bending test.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

1047-1050

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.1047

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Cite this paper

Online since:

May 2012

Authors:

Ying Wu, Qiao Yao Sun*, Wei Li

Keywords:

Bending Strength, Early Crack-Resistance Performance, Hybrid-Fiber, PVA Fiber

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

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