DOI: 10.5593/SGEM2014/B62/S26.033


H. Szilagyi, O.Corbu, C. Baera, PhD A. Puskas, M. Pastrav
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-21-6 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 2, 251-258 pp

Recycled aggregates obtained from: concrete, debris or bricks waste, has different properties, such as strength, particle shape, surface roughness, water absorption, etc., than natural aggregates (river sand and gravel). That is the major reason for the experimental results obtained on various concrete mixes, showing significant differences between the properties of the concrete made with recycled aggregates to those of concrete made with natural aggregates. Several researches were conducted worldwide in order to establish the optimal ratio of designed concrete composition considering different aggregate properties, water/cementitious material ratio, etc. which determine the strength, workability and durability of concrete. Opportunities for recycled concrete aggregates use are restricted by different requirements, specific for several countries or organizations.

Keywords: waste recycling, green building materials, concrete compositions