Mechanical properties of mortar containing recycled Acanthocardia tuberculata seashells as aggregate partial replacement
Daniel Suarez-Riera, Alessandra Merlo, Luca Lavagna and 2 more
Boletín de la Sociedad Española de Cerámica y Vidrio · 2021
doi:10.1016/j.bsecv.2020.03.011 (opens in a new tab)
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Abstract
Waste management is a most current topic, and as such, numerous articles in literature discuss over the recycling and re-use of waste materials from various fields. A common solution is the to use these materials as partial substituent of the inert fraction in concretes and mortars. This work focuses on the possibility of using Acanthocardia tuberculata seashells, which constitute a food waste destined to landfilling, as partial substituents of inert in mortars. The results obtained evidenced that the reduction in mechanical properties (in terms of toughness and flexural stress) is mainly due to the water absorption properties of seashells aggregates, which affect the hydration of the cement. However, as experimentally demonstrated, such decrease in mechanical properties in any case does not compromise the performance of the material when used for civil applications. Resumen: La gestión de residuos es un tema actual, y como tal, numerosos artículos en la literatura discuten sobre el reciclaje y la reutilización de materiales de desecho de diversos campos. Una solución común es utilizar estos materiales como sustituyentes parciales de la fracción inerte en hormigones y morteros. Este trabajo se enfoca en el posible uso de conchas marinas Acanthocardia tuberculata, que constituyen un desperdicio de alimentos destinados al relleno sanitario, como sustituyente parcial del inerte del mortero. Los resultados obtenidos evidenciaron que la reducción de las propiedades mecánicas (en términos de tenacidad y resistencia a flexión) se debe principalmente a las propiedades de absorción de agua de las conchas marinas, que afectan la hidratación del cemento. Sin embargo, como se demostró experimentalmente, dicha disminución de las propiedades mecánicas en cualquier caso no compromete el rendimiento del material cuando viene empleado en aplicaciones civiles.
Abstract licence: CC BY-NC-ND
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