Modificación de un concreto asfáltico MDC-19 mediante la sustitución del llenante mineral natural por calamina

Abstract

This research presents the experimental analysis of a modified asphalt (MDC-19) by replacing the mineral filler with Calamine. The importance of this study has to do with the incorporation of the waste from the process of manufacturing and rolling of steel (Calamine). A 60-70 asphaltic cement was used, making three samples, the first being a conventional asphalt mixture, the second replacing 6% of Calamine and finally in the third, replacing 12.5% of Calamine. The analysis of the Stability, Flow, Marshall Stiffness and percentage of voids indicators was performed for each of the samples. Favorable results were obtained for the samples with Calamine, presenting a contribution to the development of future ideas that allow to solve the process of overexploitation of aggregates in Colombia, as well, improving the properties of the asphalt mixture used.