Evaluation of a plastic clay from the state of Rio de Janeiro as a component of porcelain tile body
AUTOR(ES)
Vieira, C. M. F., Monteiro, S. N.
FONTE
Matéria (Rio de Janeiro)
DATA DE PUBLICAÇÃO
2007
RESUMO
The objective of this work was to evaluate the possibility of using a clay from the city of Silva Jardim, State of Rio de Janeiro, Brazil, in the composition of porcelain tile body. The clay investigated was a plastic kaolinitic type with white color. Initially, a typical porcelain body composed of the mixture of this clay with feldspar, quartz, kaolin and talc was prepared. Specimens were then obtained from this porcelain mixture by uniaxially pressing samples until a dry density of 2.0 g/cm3 was achieved. These specimens were then fired at 1180°C in a laboratory furnace. Physical and mechanical properties related to linear shrinkage, water absorption and flexural rupture strength, determined by Weibull statistical method, were evaluated. Microstructural analysis for the experimental body was performed by scanning electron microscopy, X-ray diffraction and mercury porosimetry. The technological properties of the elaborated composition satisfied the porcelain tile standard specifications. The microstructural analysis displayed small pores as well as a glassy matrix. The presence of quartz, mullite and plagioclase were also detected in the fired porcelain tile. These results indicated that the clay presents satisfactory characteristics to be used in porcelain tile body.
Documentos Relacionados
- Epidemiological profile of farmworkers from the state of Rio de Janeiro
- EVALUATION OF COCAINE SAMPLES SEIZED IN THE STREETS OF THE STATE OF RIO DE JANEIRO, BRAZIL
- CARACTERÍSTICAS DE COMPRESSIBILIDADE DE UMA ARGILA MOLE DA ZONA INDUSTRIAL DE SANTA CRUZ, RIO DE JANEIRO
- The epidemiological scenario of feline sporotrichosis in Rio de Janeiro, State of Rio de Janeiro, Brazil
- Rheological properties and hydration of ternary cements containing clay brick, clay tile, marble, and phosphogypsum waste