STRUCTURAL DIAGNOSIS OF THREE REINFORCED CONCRETE STRUCTURES LOCATED IN THE PARISH OF COLÓN, PORTOVIEJO MANABÍ, ECUADOR

Abstract

The structural diagnosis was carried out on three reinforced concrete buildings located in an urban zone of ​​the Colón parish belonging to the canton of Portoviejo, Manabí, Ecuador. Non-destructive and destructive tests were used. Due to the extensive data obtained, an analysis of variance, as well as the behavior of the 10 values ​​of each test determined in the elements, was used to demonstrate the concrete quality used, as well as the definition of the type of service life of the three buildings. The fitting of linear and multiple linear regression models allowed us to demonstrate the most influential factors in the atmospheric corrosion of reinforcement steel in each of the structural elements. It was demonstrated that reinforced concrete quality used was inadequate as an indicator of its durability. The three buildings may have reached their final, residual service life. Visual observation of the structural elements of all three buildings showed otherwise. It continues to be confirmed that the carbonation phenomenon influence does not compromise the service life of buildings, as long as they are located in urban or rural zones. The most influential factors in the atmospheric corrosion of reinforcement steel embedded in reinforced concrete in each of the structural elements were the carbonation constant, the effective capillary porosity percentage and the concentration of soluble chloride ions.