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Título:	Total replacement of recycled aggregate and treated wastewater: concrete recycling in extremis
Autor/a:	Ramírez Tenjhay, Mayanin Gisela; Gómez Soberón, José Manuel Vicente; Vázquez González, Alba Beatriz; Cabrera Covarrubias, Francisca Guadalupe
Otros autores:	Universitat Politècnica de Catalunya. Departament de Construccions Arquitectòniques II; Universitat Politècnica de Catalunya. GICITED - Grup Interdiciplinari de Ciència i Tecnologia en l'Edificació
Abstract:	Million tons of construction and demolition waste (CDW) are generated every year around the world, and most of them are not adequately disposed, generating significant pollution on water, soil and air. Additionally, the use of freshwater in industrial processes, such as the production of cement, concrete manufacturing and curing for newly-built structures; has damaged the health of our freshwater ecosystems, reducing their volume and hindering their natural cycle of renovation. Therefore, the incorporation of recycled aggregate (RA) and treated wastewater (TW) as substitutes for the usual aggregates (UA) and freshwater, could generate significant environmental benefits. In this research, a comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement percentage of UA for RA, is presented; and as an innovation the use TW. The results show that, regardless of the replacement percentage and use of treated wastewater, a concrete with RA and TW (recycled concrete in extremis, CRiE) had a satisfactory and acceptable or equivalent performance, not differing significantly from the performance of conventional concrete (CC), confirming that the use of RA for concrete building is feasible.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó -Concrete construction -recycled aggregates -recycled concrete -sustainable materials -treated wastewater -Construcció en formigó
Derechos:	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipo de documento:	Artículo - Versión publicada Artículo
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