The Behaviour of RC-Beam and RC-Slab using coarse and fine recycled concrete aggregates

Abstract

The reinforced concrete beam and slab which was made from recycles concrete aggregates with different percentage of recycled and natural aggregates was investigated. The nine reinforced concrete beam specimens was made from coarse recycles concrete aggregates with fc’ 25 MPa and nine reinforced concrete slab specimens was made from coarse and fine recycles concrete aggregates with fc’ 20 MPa was tested. The flexural strength, ductility, crack pattern and its behaviour was observed. The material of concrete using recycled concrete aggregates was also tested for compression, bending, splitting and shear strength. The analytical prediction of RC-beam and RC-slab based on the material test of concrete using recycled concrete aggregates was compared to the test result. The result showed that the flexural strength and ductility of RC-beam and RC-slab specimens made from recycles concrete aggregates was satisfied.