Static and Dynamic Properties of Concrete Contained Waste Ttire Rubber

The behavior of concrete subjected to impact load, is different compared to the behavior under static loading. A test program was carried out to determine static and dynamic properties of rubberized concrete. In this study, waste tire rubber particles were replaced with fine aggregate in concrete mixture in 3 sizes, 0-1, 1-3 and 3-5 mm and in volume ratio of 0%, 10%, 20%, 30%, 40% and 50%. Static and dynamic tests are done with hydraulic and drop hammer machines. Results of compressive and flexural strength, velocity of ultrasonic wave, Static and dynamic modulus of elasticity, strain and Static and absorption energy of rubberized concrete are determined. The results indicated that: larger rubber particles in replacement of sand have better results than smaller sizes. Also increased in rubber content, decreased the unit weight, compressive strength and static and dynamic modulus of elasticity of rubberized concrete. Using rubber particles in concrete significantly increased the ductility and strain capacity of concrete. In addition in this study equation of impact test with using mass-spring modelling, was determined.