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Self-compacting recycled aggregate concrete using out-of-service railway superstructure wastes

Abstract: Slab track is replacing obsolete ballasted track. This work proposes crushing out-of-service ballast and sleepers for use as aggregates for constructing the slab track. Three kinds of recycled self-compacting concretes were designed; the first one with aggregates from crushed ballast, the second one with aggregates from crushed sleepers and the third one with both kinds of aggregates in the proportion they appear in the track. The mechanical and durability properties of these concretes were analysed. The durability test was focused on freeze-thaw and drying-wetting cycles. The results obtained lead to the conclusion that out-of-service track could be used to build the new one, closing the loop.

 Fuente: Journal of Cleaner Production Volume 230, 1 September 2019, Pages 945-955

 Editorial: Elsevier

 Fecha de publicación: 01/09/2019

 Nº de páginas: 11

 Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.jclepro.2019.04.386

 ISSN: 0959-6526,1879-1786

 Proyecto español: MAT2014-57544-R

 Url de la publicación: https://doi.org/10.1016/j.jclepro.2019.04.386