Cyclic and Dynamic Behavior of Sand–Rubber and Clay–Rubber Mixtures

In this paper, the possibility of using fine scrap tyre rubber to improve mechanical properties soil subjected cyclic loading is addressed. Ground (0.1–0.8 mm) in various proportions (0, 9, 33% and 100% by weight) was mixed with a uniform river sand lean clay. Cyclic triaxial tests bender elements were executed observe behaviour materials also determine damping shear stiffness parameters. The results have shown that addition has significantly decreased density both types soils, which favours mitigation vibrations. degradation at strains higher than 10?3 lower specimens containing more rubber. Within strain range, ratio, but increased normalized accumulated absolute energy absorbed material. Higher content sandy resulted elastic behaviour, accumulation each cycle, eventually resulting number cycles before failure. positive effect presence not observed compacted clay–rubber mixture, sustained less clay alone. influence p?-q stress space expressed form pore pressure generation shifted path further from failure envelope.