Uso de escoria siderúrgica en la elaboración de mezclas asfálticas con agregados de la localidad

Abstract

Abstract: The premature damage of the asphaltic structure in most of the roads of our country have motivated the investigation of alternatives that allow reducing the wear and fracture of this. In Europe the use of industrial waste as a construction material has shown excellent results. That's why, this work aimed to analyze the physical and mechanical behavior of hot asphalt mixtures, using steel slag as part of the mineral aggregates. For this, physical and chemical characterization of slag, local aggregates and asphalt cement was performed, as well as stability and flow tests in 4 different designs, using the Marshall method, in accordance with NEVI-12. As a result of this, the 3 designs with 5%, 10% and 15% substitution of aggregates by steel slag, gave equal or better results to the asphalt mixture without substitution, which confirms the results by researches carried out worldwide, cataloging the slag as appropriate material for use in hot asphalt mixtures.