Abstract
A detailed investigation of rubberized lightweight aggregate concrete was conducted using 38 cylindrical and 36 beam specimens. Six mix designs, incorporated in the study, contained rubber replacement ratios from 0% to 100% by volume replacement of a lightweight expanded-shale coarse aggregate. The objective of this study is to investigate mechanical properties of lightweight tire-derived aggregate concrete, including compressive strength, modulus of elasticity, splitting-tensile strength, flexural strength, and flexural toughness. Further, an impact test was conducted using a falling weight to investigate dynamic properties of specimens subjected to flexure. Results suggest tire-derived aggregates reduces the mechanical strength of specimens, but, enhances ductility and toughness of materials. These enhancements are valuable for dynamic applications of lightweight concrete.
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