Dredged marine sand as a new source for construction materials

J. Limeira; L. Agulló; M. Etxeberria

doi:10.3989/mc.2011.61710

Autores/as

J. Limeira Department of Construction Engineering, Polytechnic University of Catalonia, Barcelona
L. Agulló Department of Construction Engineering, Polytechnic University of Catalonia, Barcelona
M. Etxeberria Department of Construction Engineering, Polytechnic University of Catalonia, Barcelona

DOI:

https://doi.org/10.3989/mc.2011.61710

Palabras clave:

arenas de dragado marino, morteros, propiedades mecánicas

Resumen

Este trabajo propone el uso de arenas de dragado marino (DMS) en pastas y morteros como material constructivo. Se utilizaron materiales de dos puertos españoles: DMS-0 del puerto de Sant Carles de la Ràpita, y DMS-A, DMS-B y DMS-C del puerto de Barcelona. El objetivo del estudio era evaluar el material DMS como adición (influencia sobre cohesión y fluidez) o como corrector granular (influencia sobre resistencia a la compresión) en diferentes mezclas de pasta y morteros de cemento, respectivamente. Se realizaron dos fases experimentales: primero, se empleó el DMS-0 en la producción de pastas y morteros (sustitución parcial de arena natural 0/2 mm); a continuación, se emplearon DMS-A, DMS-B y DMS-C en la producción de morteros (sustitución parcial de arena natural 0/5 mm). Los resultados obtenidos fueron comparados con las mezclas de control y revelaron que la proporción óptima de sustitución de arenas naturales por DMS era del 25 %.

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