Experimental Results of Polyester/Glass Fibers – Cementitious Matrix Bond Characteristics: Effect of Silane on Fibers

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In this paper, the effect of silane treatment on the bond characteristics of fiber in cementitious matrix, including bond strength and pullout energy are presented. These fibres arise from recycling by crushing of thermoset composite based on unsaturated polyester/glass fiber. Various silane treatment contents ranging from 0% to 1% are used. This treatment by silane enhances the fiber–matrix interfacial properties, especially in fiber pullout energy. However, the bond strength was increased by 150% and the pullout energy was increased by 300%. It is also concluded that in terms of the bond characteristics, the optimal content of silane is 0.5%, given the conditions of the experimental program. The micro structural observation confirms the findings on the interfacial-toughening mechanism drawn from the fiber pullout test results.

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73-77

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January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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