Comparison of Mechanical and Strength Properties of Parent concrete and Recycled Aggregate Concrete- A Review

Recycled aggregate (RA) obtained from crushed concrete rubble, instead of being stored, can be reused in building industry. An attempt has been made to study the possibility of reusing the recycled concrete aggregate from demolished structures in the place of fresh aggregate. The most important parameters associated with recycled concrete aggregate (RCA) production that may affect quality and yield include such properties of the parent concrete as the composition, strength and aggregate grading, type of crushers used, number of crushing stages, the size of the RCA particles, and the size reduction sequence. Here properties of NA and RA will be studied in many papers and compare the both properties NA and RA and conclude the reasons of difference in their properties.