Abstract

Glass wool finds its application in soundproofing materials and insulation. This paper studies the effect of high-energy shock waves on glass wool fibres using modified Reddy shock tube. Changes in composition and properties of fibres are reported through SEM analysis. With driver pressure of 6.79 bar, Mach number, maximum pressure and temperature achieved are 1.46, 4.845 atm and 482.91 K respectively. Due to diaphragm material, carbon content of 2.92% by weight is observed in shocked specimen. SEM images show curliness in fibers, increased number and uniform distribution of binder clusters and air voids resulting in enhanced strength, hardness and insulation properties of fibres.

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