Detalhes bibliográficos
| Ano de defesa: |
2002 |
| Autor(a) principal: |
Lima, Paulo Demétrios da Silva |
| Orientador(a): |
Não Informado pela instituição |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Não Informado pela instituição
|
| Programa de Pós-Graduação: |
Não Informado pela instituição
|
| Departamento: |
Não Informado pela instituição
|
| País: |
Não Informado pela instituição
|
| Palavras-chave em Português: |
|
| Link de acesso: |
http://www.repositorio.ufc.br/handle/riufc/2502
|
Resumo: |
This thesis presents a method to measure a tendency to cracking of 35-mm-diameter circular samples of clay during drying. These samples were exposed to a current of air under controlled temperature and humidity. Depending on the drying conditions a crack is produced and its length is compared to a numerical scale. Five different clays were tested in a drying apparatus built in the Ceramics Laboratory of the Chemical Engineering Course at the Federal University of Ceará. Drying curves were plotted under several temperature and humidity conditions for the five clays and correlated with industrial drying project data. The samples Caulim and Sobral showed similarity in cracking tendency and the samples Celene and Filito did not showed any crack in every diferent conditions of temperature and humidity exposed. The last sample Tagua showed an anomalous behaviour. The dryer can be used to test a cracking tendency in every kind of clay. The test showed capable of being reproduced in despite of the anomalous behaviour of one of the samples. |
