USE OF HIGH CONTENT CRUMB RUBBER FROM WASTED TIRE IN BULLETPROOF CONCRETE PANELS

Abstract eng:
Wasted or abandoned tires are an environmental problem worldwide. One way to get rid of them is to grind them into small particles called crumb rubber. During the past years, crumb rubber has found its use in several applications including the rubberized concrete. In this study, the rubberized concrete is used to improve the bullet resistance of steel fiber reinforced concrete (SFRC) panels. In general, a major requirement for a bulletproof panel is to be able to stop bullet from penetrating through the panel. However, when using hard materials like SFRC, though the bullet cannot penetrate the panel, it bounces or ricochets back at high velocity and in random directions which in a way is still able to cause damage. In this study, a double layer bulletproof panel made of crumb rubberized concrete (CRC) in the front and SFRC in the back is introduced. The rubberized concrete (CRC) layer in the front is expected to behave as a cushion layer which absorbs impact energy from a bullet prior to reaching the SFRC layer and to stop the bullet from bouncing back or to reduce the ricocheting velocity. Data are collected in from of acceleration and displacement occurred during the impact. Key words: Wasted Tires, Crumb Rubber, Bulletproof Panel, Environmental Performance

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