Evaluación de las Propiedades del Cementante Asfáltico AC20 Modificado con Ceniza de Cáscara de Palma de Aceite

Abstract

The study focused on evaluating the incorporation of oil palm shell ash (CCPA) in the AC20 asphalt mix, analyzing the physical-mechanical properties and the behavior of the mix under different conditions. Tests were carried out to determine the optimum percentage of CCPA, and significant improvements were observed when using 5% of this additive, with increases in stability, void volume, hot mix specific gravity (Gmb), flow and void densification. The results indicate that the addition of CCPA significantly influences the structure and properties of AC20, which has important interventions for its behavior in practical applications. The optimum increase of CCPA in the briquetting blend was found to be 0.35g. The CCPA-modified mix proved to be stronger as it complies with established regulations, suggesting an ability to improve the durability, deformation resistance and service life of the pavement. These results highlight the importance of considering the dosage of additives such as CCPA when making asphalt mixtures, in order to achieve the required properties and optimize their performance in various conditions of use