Estudo das propriedades do concreto em diferentes dimensões

Abstract

Mechanical resistance tests are an important tool in evaluating the properties of concrete, both during the construction of structures and after they are finished. The purpose of this research is to investigate how different specimen shapes influence the results of mechanical strength tests and the physical properties of concrete. To achieve this objective, mechanical resistance and water absorption tests were carried out on specimens with different geometries, including cylindrical, cubic and prismatic, all with the same concrete mix of 1:2:3:0.6 (cement: fine aggregate: coarse aggregate: water). The data collected in the tests were subjected to evaluations using correlated graphs, which made it possible to determine these properties, thus making comparisons between the dry specific mass and compressive strength, as well as comparisons between the specific mass and water absorption, and the experimental results of mechanical resistance. It was concluded that the size of the test specimen influences the mechanical resistance results and an inverse relationship between specific mass and water absorption was found, reinforcing the theory that denser concretes, indicated by a greater specific mass, tend to have lower water absorption. This conclusion reinforces the understanding of the relationships between mechanical resistance, water absorption and specific mass and contributes to the development of more durable and efficient materials in construction.