RAPOSO, A. E.; http://lattes.cnpq.br/7352516582659318; RAPOSO, Albanise Eulalio.
Résumé:
The lack of control in the quality of floor tiles has been reducing the life spend of
these products when in use, so we should think about their caracteristics, for
example, moisture expansion and the methods to determine and induct it.
The present work studied the influence of the temperature in determine the
"current" moisture expansion by dilatometrie. I was used autolaved and boiled
methods in 1, 2, 4 and 24, 48, 96 hours respectively, we looked for a
relationship where the results of the "potential" moisture expansion were equal
or very close, to study them.With this purpose , we studied two typer of red
floor tiles and two of white one.Which come from Sao Paulo and Ceara States.
The white ones come from Cabedelo and Campina Grande in Paraiba.These
floor tiles were submited to trail rum chemical analysis, determination of water
absorption, resistence to crazing and moisture expansion, according to ABNT.
To the results we concluded that there was no influence of the temperature, in
determining both "current" moisture expansion and the "potential" one. The
results of the "potential" moisture expansion when autoclaved during 1 hour
were close to the ones got by boile in 96 hours and the results to 1 and 4 hours
to the autolaved method were almost two times the results of the expansions
that used the boil ethod in 24 and 48 hours respectively. So it displocement of
the floor pices.
