CAVALCANTI, M. S. L.; http://lattes.cnpq.br/4856393615300108; CAVALCANTI, Maria do Socorro Lopes.
Résumé:
Frequently the ceramic tiles show a crazing glazed surface. Trying
to avoid this problem, after fabrication, the tiles are submitted to some
tests of quality control specified by ABNT. However, it has been
observed that these tiles have a suitable behaviour during the quality
control, but after to be fixed on the wall exhibit the development of
crazing. Objecting to acquire a great knowledge over this problem, since
1974 have being studied national tiles from different manufactois. The
tiles were fixed on the wall in form of panels with mortar and mortar
with organic adhesive at various ratio and thickness. At 1977 were
selected samples of fixed tiles and from then on several data of crazing,
bending and adhesion failure have being collected. So, this research
presents a general study based on the results obtained till now.
The results show that the use of organic adhesive reduces crazing
on the glazed surface of the tiles when in service, that the crazing of the
glazed surface has a certain interdependence between bending,
adhesion failure and evolution of time fixing, that the panels with less
thickness mortar and weaker traces are the ones with best behaviour
after 14 years fixing.