Análisis de propiedades del hormigón a través del ensayo no destructivo de ultrasonido

Abstract

Non-destructive methods are a methodology used to determine the properties of concrete, these tests are of interest since they preserve the structural integrity, in addition to this, they are economical and with the adequate analysis the results are reliable; Among these tests is the ultrasound test, there are numerous investigations that have determined the factors that influence these measurements, which has limited their use. It is currently used to determine the depth of cracks and in certain cases it is applied to quantitatively analyze the condition of concrete. Various studies have been able to identify that a general relationship cannot be established, since the properties of the aggregates depend on the sector from which they come. Due to these backgrounds, the present work aims to determine if it is feasible to use the ultrasound test to determine the compressive strength, because the aggregates used in the area come from the same sector, the results obtained are applicable only in the locality. Therefore, we have worked with more than 500 samples from two local concrete mixers with which a statistical analysis was carried out, in order to determine the existing correlation. After this, the trial was taken to the field, where the results of ultrasound and rebound test were compared. Additionally, the influence of the presence of reinforcement and cracks on the measurements is established.