Estudio de variación de resistencia del concreto simple al sustituir el porcentaje de árido fino y árido grueso provenientes de la localidad con escoria de acería.

Abstract

Abstract:The physical characterization of aggregates and slag that came from the was carried out from laboratory tests. Were analyzed four concrete mixtures designed for compression strength of 21 MPa, three of these mixtures were prepared in addition of several slag combinations in substitution of the aggregate. The first combination correspond to 25% of slag instead of fine aggregates and 15% of slag instead of the coarse aggregate; a second of 25% slag replacing fine and coarse aggregate, the third combination 15% slag instead fine and coarse aggregate. Of the results obtained, the concrete mixture containing 15% of slag instead of fine and coarse aggregate, presented results regarding to the mix of conventional concrete that exceed by 19% to the design resistance. It was determined that the increase of more than 15% of steel slag incorporation increases the settlement of fresh concrete; in addition, due to its distribution of particles generates sludge when it is in contact with water and cement, adhering to the walls of the mixer that affects the compression resistance.