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Effect of Fiber Length on Impact Resistance of Fiber Cement-Based Composites Containing Silica Fume

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Abstract:

This study is aimed to evaluate the impact performance of cement-based composites which comprise steel fibers and silica fume in the mixes. Material variables include water-cementitious ratio, dosage of silica fume, steel fiber length and dosage. Test results indicate that the impact resistance increase with increasing fiber content and water-cementitious ratio, and with decreasing silica fume content. For a given volume fraction, short fiber performs better than its long counterpart in improving the impact performance. In addition, the combination of silica fume and fibers enhances better impact behavior than individual constituents of silica fume, due to reduced the crack formation and offer the toughness of cement-based composites under impact loadings.

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Periodical:

Advanced Materials Research (Volume 586)

Pages:

117-120

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.586.117

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Online since:

November 2012

Authors:

Wei Ting Lin, Ta Yuan Han, Yuan Cheih Wu, Chin Cheng Huang

Keywords:

Drop Weight Test, Impact Toughness, Silica Fume (SF), Steel Fiber (SF)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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