ResumenEste artículo presenta los resultados de una caracterización experimental de las propiedades físicas y mecánicas de un compuesto en base cemento que incluye áridos finos cerámicos y EPS reciclados para distintas dosificaciones procedentes de obras de rehabilitación. El objetivo es proponer un nuevo material de construcción desarrollado en Argentina para una posterior adaptación del mismo a la normativa española y europea para minimizar el impacto ambiental, mejorar la eficiencia energética y los costes de la ejecución, así como una solución al problema de gestión que suponen los residuos. Los resultados de los ensayos realizados muestran que al incrementar la cantidad de áridos y EPS reciclados, la resistencia mecánica se reduce frente a las muestras de referencia tradicionales. Al añadir EPS, se observa que se produce una disminución proporcional de la conductividad térmica, mejorando por tanto, las propiedades térmicas. Además, se obtiene que el grado de absorción del agua es similar al de las muestras de referencia y, frente al fuego, tienen un comportamiento también equivalente a éstas, obteniéndose que el nuevo material tiene baja emisión de humos y baja propagación de la llama. Palabras clave: Árido fino reciclado, materiales de construcción, sostenibilidad, residuos de construcción y demolición, poliestireno. AbstractThis article presents the results of an experimental characterisation of the physical and mechanical properties of a cement-based compound that includes recycled fine ceramic aggregates and EPS for various dosages from rehabilitation work. The aim of this research is to propose a new construction material, developed in Argentina, for its future adaptation to Spanish and European regulations in order to minimise the environmental impact, improve energy efficiency and reduce construction costs, as well as provide a solution to the problem that CDW (Construction and demolition waste) management represents. Tests results show that when increasing the amount of recycled fine aggregates and EPS, the mechanical resistance is reduced in comparison with traditional sample products. By adding recycled EPS, it is observed that a proportional reduction of the thermal conductivity occurs, thereby improving its thermal properties. Furthermore, it is found that the degree of water absorption is similar to that of the reference samples, and fire tests show that its behaviour is also equivalent, thereby showing that this new material has low smoke emission and low flame spread.

Background: This research paper presents the results of the characterization and adaptation of the construction product developed by the Experimental Centre of Production of the Faculty of Architecture, Design and Urbanism of the University of Buenos Aires, Argentina (CEP FADU UBA) for Spanish regulations. Additionally, it shows the study of the industrialization of its manufacturing process in Spain. The product consists of a cement-based compound that includes recycled fine ceramic aggregates and EPS from rehabilitation works. Objectives: The aim of this research work is to propose a new eco-efficient construction product adapted to Spanish and European regulations in order to minimize the environmental impact of the construction activity, improve energy efficiency and reduce construction costs. Furthermore, it is presented as a solution to the problem that construction and demolition waste management represents. Method and Results: Samples have been tested to the water absorption and compression resistance tests according to UNE standards. These parameters serve to delimit its use in new sustainable constructive solutions for the design of zero energy consumption buildings (nZEB). Conclusion: Results show that it is possible to obtain certain samples that include recycled ceramic aggregates and EPS which present good response to the mechanical and water absorption tests. In addition, it is obtained that industrializing this product in Spain is complex due to the current waste management system.

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