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Resumen Este trabajo estudia las propiedades mecanicas y fisicas de hormigones estructurales fabricados con aridos reciclados obtenidos de residuos de construccion y demolicion. Se han seleccionado mezclas con una relacion especifica agua / cemento y una sustitucion de agregados gruesos y finos similares. Se han comparado los resultados de la deformacion, la resistencia a la compresion, la resistencia a la rotura por fraccionamiento, el modulo estatico de elasticidad, la deformacion por contraccion, la densidad aparente y los ensayos de absorcion de agua. Los datos muestran que las propiedades mas afectadas debido a la sustitucion de agregados naturales por agregados reciclados son la trabajabilidad, el modulo de elasticidad, la deformacion por contraccion y la absorcion de agua. Abstract This work studies the mechanical and physical properties of structural concretes made by recycled aggregates obtained from construction and demolition waste. Mixes with a specific water/cement ratio and a similar coarse and fine aggregate substitution have been selected. Results from slump, compressive strength, splitting tensile strength, static modulus of elasticity, shrinkage strain, bulk density and water absorption tests have been compared. The data show that the most affected properties because of natural aggregate substitution for recycled aggregates are workability, modulus of elasticity, shrinkage strain and water absorption.

anales de edificación

Caracterización físico-mecánica del hormigón estructural fabricado con áridos reciclados: comparativa experimental con sustitución de áridos finos y gruesos = Physical-mechanical characterization of the structural concrete made with recycled aggregates: experimental comparative with substitution of fine and coarse aggregates