Mechanical Properties of Field Demolished Aggregate Concrete

This paper studied about the mechanical properties of field demolished aggregate concrete. The demolished concrete from previous construction, after surface treatment is used as aggregate known as recycled aggregate. The present work is studied by replacing the recycled aggregate with natural coarse aggregate from 0% to 50% at every increment of 10% in M 30 grade of concrete. The recycled material obtained is used in the construction of pavements, gutters, curbs, retaining wall backfill, landscaping rock and erosion control. From the study, it is observed that the compressive strength and split tensile strength of natural aggregate with respect to recycled aggregate have a less variation from 0% to 50% replacement. Thus the recycled aggregate can be used effectively as a coarse material in new concrete.