BRITO, I. P.; http://lattes.cnpq.br/9174572610576802; BRITO, Igor Pinheiro de.
Résumé:
In recent years, new clays deposits have been discovered in the state of Paraiba, the
characterization of these deposits is of fundamental importance to establish the best
industrial usage. In this context, the aim of this study was characterized clays in the
municipality of Cubati-PB, to establish their appropriate uses as ceramic raw
materials. Therefore, the raw materials were subjected to the following
characterization techniques: physical, chemical, mineralogical and thermal. Later,
specimens were prepared by uniaxial pressing at 19 MPa, before dry at 110°C, and
submitted to firing at temperatures of 750°C, 850°C, 950°C and 1150°C. It were
determined the physical and mechanical properties: linear firing shrinkage (LFS),
water absorption (WA), apparent density (DAp), apparent porosity (PA) and flexural
modulus of rupture (MRF). The clays A, B and C are suitable for use in white ceramic
and D to red ceramic. And all the clays contain adequate mineralogical composition
for use in red ceramic.
