International Journal of Earth Sciences and Engineering

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Disposal of waste rubber tyres has become a major concern in relation to the surrounding environment. This paper mainly focuses on the problems associated with waste tire disposal and the reuse of recycled rubber (RR) as coarse aggregate in new concrete construction. M20 and M40 concrete grades are mixed with recycled rubber which replaces coarse aggregate by the volume of 5, 10 and 15 percentages. Silica Fume (SF) and Plaster of Paris (POP) were replaced with cement content in various proportions such as 5, 10 and 15 percent. The experimental results show that when the percentage of recycled rubber increases the compressive strength of concrete decreases gradually. However silica fume has significant effects on the strength of concrete compared to POP.

Keywords

Recycled Rubber, Silica Fume, Plaster of Paris, Compressive Strength, Optimum Percentage.
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