Estudio comparativo de las propiedades físico-mecánicas de un concreto convencional y modificado a partir del agregado grueso con 3 tipos de ladrillos y un retardante reductor de agua como aditivo

Abstract

Through this project, an alternative use to the waste of bricks commonly used in a work is proposed, which are generated from poor handling, demolition, among other cases. This material is abundant and represents a threat to the environment due to the poor disposal process of the rubble, in the same way, when using crushed brick as an aggregate, the use of stone aggregates from quarries is reduced, which generate affectations in the basins. Therefore, a solution that uses crushed brick is proposed, taking advantage of its resistance properties, generating a contribution in the construction works, in order to use it as an aggregate in the concrete production process. 3 types of brick were used, #4, paver, and structural brick, in 3 different percentages of coarse aggregate replacement, 5, 10, and 15%, and a water-reducing retarding admixture was used. From laboratory tests, the characterization of the aggregates was carried out, and the compressive and flexural resistance was determined for each of the concretes modified with each of the bricks and percentages, to later generate comparisons with the values of conventional concrete. without replacement of the coarse aggregate. In the process, it was determined that the structural brick presented the best results when using the water-reducing retarding additive, on the other hand, brick #4 obtained favorable results using a 10% replacement of the coarse aggregate.