Experimental Study on Mechanical Properties of Recycled Aggregates and Marble Powder

In this study, the natural aggregates are replaced by recycled aggregates with replacement ratio of 0%, 25%, 50% and 100% and cement is replaced by marble powder with replacement ratio of 0%,10% and 20%. Twelve different mixes are used in the present study with varying replacement percentage of recycled aggregates and marble powder. The different mixes are studied for mechanical and workability properties of M35 concrete. Concrete mixes with 25% recycled aggregates and 10% marble powder replacement gives mechanical strength almost equals to normal mix. The workability of concrete mix decreases with increasing percentage of recycled concrete aggregates and increases with marble powder up to 10%. But results revealed that there is no significant decrease in workability of concrete mix. Results revealed that using marble powder and recycled aggregates up to a certain limit can be better alternative to cement and natural aggregates considering strength, economy and environmental friendly implications.