Abstract:
This Report includes the theoretical background and the results of an
assessment of the ACoustic Energy Absorption Device (ACEADD) as a means to
reveal the presence of hidden decay in azulejo panels, namely detachments from
the supporting wall and glaze delaminations. The project results from a
cooperation between the Institute of Acoustics and Sensor - O. M. Corbino of the
Italian National Research Council (CNR_IDASC), which developed the device
and successfully tested it on partially detached frescos, and Laboratório Nacional
de Engenharia Civil which is engaged in a planned effort to develop means of
diagnose and intervention for the conservation of azulejo tiles and panels.
