Propriedades mecânicas de concretos produzidos com areia natural e areia artificial com uso de aditivo polifuncional

Abstract

The research aimed to verify the mechanical properties of concrete produced with natural or artificial sand, using a polyfunctional additive. The materials used in civil construction have different properties and knowing these properties is essential for us to obtain the best use and application in the various stages of construction. When we study concrete and its components, we have great variations in the results when using different components, being aggregated with different compositions, dimensions or amounts of these compositions, or even the use of additives to highlight a characteristic that would help in the execution. In this research, the mechanical properties of six types of concrete were studied, varying their composition, using CPII-F-32 cement, gravel granite and polyfunctional additive, using natural sand in three of the lines and in the others artificial sand, varying the proportions with them compositions to verify the results obtained with the established material parameters. To verify these properties, the compressive strength tests of concrete and the modulus of elasticity test were performed. With this study it was observed that the results obtained for natural sand were superior to those obtained for artificial sand. However, approximate results were obtained, providing satisfactory mechanical properties for concretes produced with artificial sand in relation to those produced with natural sand.