Using acoustics waves for characterization of ceramic roof tiles: a didactic proposal of non-destructive test

Abstract The aim of this study was to develop a simple methodology, capable of characterizing different properties of ceramic roof tiles through the acoustics waves propagation. For this, was used the gravitational potential energy caused by the impact of a steel ball in free fall on the roof tiles surface. After this, the acoustic signal was captured using computer and free software. The results obtained showed the viability of the method as a didactic proposal to be implemented in the classes building materials laboratory carried out in civil engineering courses.