Análisis comparativo del comportamiento de mezclas de concreto permeable fabricado con diferentes tipos de cementos

Abstract

Pervious concrete or concrete without fines is considered a sustainable response variant to surface runoff problems; it has not been used in Ecuador due to limited research. This study aims to analyze the impact of density and cement type on the design, strength, and infiltration of porous concrete through the use of the following cement types: GU (General Use), HE (High Early Strength), and HS (High sulfate resistance). For the mix design, the ACI 522R-10 report was used to obtain the indirect tensile, compression, and infiltration capacity of cylindrical models at 3, 7, 14, 21, 28, and 45 days. The results of the tests after 28 days indicate that the highest strengths are achieved with the use of HE cement, with a compressive strength of 20.03 MPa, indirect tensile strength of 2.61 MPa. However, the mixture with cement-type GU has a higher permeability, equal to 1.69 cm/s. Cement type HS has lower strength than the dosage with cement type HE and lower permeability than concrete with cement type GU, occupying an intermediate place in the analysis. In addition, each cement affects the workability and appearance of the permeable concrete mixes.