EXPERIMENTAL STUDY ON THE TORSIONAL BEHAVIOUR OF RECYCLED AGGREGATE CONCRETE BEAMS

D.V.Lokesh, I. Jaagruthi, Ch.Naga Satish Kumar

Abstract: In the present paper an experimental investigation was carried out to study the torsional behavior of recycled aggregate beams of size 150 mm x 150mm x 800 mm using M 30 mix. This experimental study consists of testing three beams of natural aggregate and twelve beams made by using different proportions of recycled aggregate i.e., 25%, 50%, 75% and 100% replacements of the natural aggregate with the recycled aggregate. After testing the beams for torsion, the angle of twist vs torque graphs were drawn. From the experimental results it was observed that the torsional decreases with increase in the percentage of recycled aggregates and also found that up to 50 % replacement of aggregates the strength reduction is less and not even 10 % in case of torsional strength. Therefore the usage of recycled aggregates up to 50 % can be acceptable.

Keywords: Concrete, Recycled aggregates, Natural aggregate ,Torsion

DOI: https://doi.org/10.15623/ijret.2015.0425053