09-10-2014, 10:26 AM
Abstracts: The disposal of waste tires is becoming a major waste management problem in the world at the moment. It is estimated that 1.2 billions of waste tire rubber produced globally in a year. It is estimated that 11% of postconsumer tires are exported and 27% are sent to landfill, stockpiled or dumped illegally and only 4% is used for civil engineering projects. Hence efforts have been taken to identify the potential application of waste tyres in civil engineering projects. In this essence, our present study aims to investigate the optimal use of waste tyre rubber crumbs as course aggregate in concrete composite. A total of 72 cubes specimens were cast with the replacement of course aggregate by shredded rubber crumbs with the proportion of 5, 10, 15, 20, 25% by weight . Fresh and hardened properties of concrete such as workability, compressive strength,were identified.