DBPapers
DOI: 10.5593/sgem2017/62/S26.049

RECYCLING OF BRICK AND DEMOLITION CONCRETE AGGREGATES WASTES IN THE SELF COMPACTING CONCRETE

Y. Ghernouti, B. Rabehi, N. Ziani, S. Tamazirt
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-13-3 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 62, 383-392 pp, DOI: 10.5593/sgem2017/62/S26.049

ABSTRACT

The aim of this study is to explore the possibility of recycling waste materials of brick aggregates (BA) and demolition concrete aggregates (DCA) in the self-compacting concrete (SCC), by studying these fresh and hardened properties. A reference mixture based on natural aggregates (NASCC) and six mixtures incorporating recycled brick aggregates (BASCC), recycled demolition concrete aggregate (DCASCC) and combination of recycled brick and demolition concrete aggregates (BDASCC), as replacement of natural aggregates have been prepared. Slump flow, L-box, and sieve stability were performed to assess the fresh properties of the prepared mixtures. Compressive strength, splitting tensile strength and flexural strength of the concrete were determined for the hardened properties. The obtained results are very interesting, suggesting a possible use of brick aggregate and demolition aggregate concrete in formulation of SCC, and can lead to new concrete with satisfactory physical mechanical properties.

Keywords: Recycled, waste, aggregate, materials, concrete.