The strength of basalt single fibres (BF) of different length (10 to 50 mm) has been examined and compared to that of E-Glass (EGF) and Zirconium modified glass (ZGF) fibres. The strength of BFs was found to lie between those of EGFs and ZFGs. The Weibul parameters indicated that the flaw size in BFs increased with fibre length at a higher rate than for EGFs and ZFGs. This indicates that, at the present stage of production technology, BFs are better suited for short-fibre composites than for long-fibre applications. The effect of exposure to alkaline environment was also investigated. It was found that the weight loss of BFs was substantially the same as for ZFGs; much higher was the loss for EGF (notoriously prone to chemical attack in alkaline media). However, the mechanical properties of BFs, after alkaline attack, deteriorated at faster rate than for ZFGs.

Mechanical and chemical properties of basalt fibres

LEVITA, GIOVANNI;MARCHETTI, AUGUSTO;GALLONE, GIUSEPPE CARMINE;LAZZERI, ANDREA;ANGUILLESI, IRENE
2004-01-01

Abstract

The strength of basalt single fibres (BF) of different length (10 to 50 mm) has been examined and compared to that of E-Glass (EGF) and Zirconium modified glass (ZGF) fibres. The strength of BFs was found to lie between those of EGFs and ZFGs. The Weibul parameters indicated that the flaw size in BFs increased with fibre length at a higher rate than for EGFs and ZFGs. This indicates that, at the present stage of production technology, BFs are better suited for short-fibre composites than for long-fibre applications. The effect of exposure to alkaline environment was also investigated. It was found that the weight loss of BFs was substantially the same as for ZFGs; much higher was the loss for EGF (notoriously prone to chemical attack in alkaline media). However, the mechanical properties of BFs, after alkaline attack, deteriorated at faster rate than for ZFGs.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/89589
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