Title: Experimental Behavior of Reinforced Concrete Beams with Electric Arc Furnace Slag as Recycled Aggregate

Author(s): Carlo Pellegrino and Flora Faleschini

Publication: Materials Journal

Volume: 110

Issue: 2

Appears on pages(s): 197-206

Keywords: beams; bending; electric arc furnace slag; reinforced concrete; shear; sustainable development.

DOI: 10.14359/51685534

Date: 3/1/2013

Abstract:
The aim of this study is to investigate the possibility of partially substituting natural aggregates with black/oxidizing electric arc furnace (EAF) slag for reinforced concrete (RC) structural elements. International research has been mainly focused on experimental tests on small specimens rather than investigating the behavior of RC structural elements. In this study, the experimental behavior of RC beams made with EAF slag as aggregate was studied showing that these beams have both ultimate flexural and shear capacity higher than the corresponding traditional beams. Some comparisons between experimental results and analytical predictions according to the European and U.S. recommendations were also shown. The main result of this study is that the use of steel slag as aggregate in RC structural elements is, in principle, possible, and the rate of substitution could reach the entire part of coarse aggregates, obtaining benefits both from an economical and environmental point of view.