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

Autor: S. Diego, Carlos Thomas, Jose A. Sainz-Aja, Juan A. Polanco, J.A. Casado, Isidro A. Carrascal, Israel Sosa
Přispěvatelé: Universidad de Cantabria
Rok vydání: 2019
Předmět:
Zdroj: Journal of Cleaner Production Volume 230, 1 September 2019, Pages 945-955
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
ISSN: 0959-6526
Popis: 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. Spanish Ministry of Economy and Competitiveness for financing the project MAT2014-57544-R.
Databáze: OpenAIRE