Detalhes bibliográficos
| Ano de defesa: |
2015 |
| Autor(a) principal: |
Perez, Elva Wendolyn Ramirez
 |
| Orientador(a): |
Figueiredo, Enio José Pazini
|
| Banca de defesa: |
Figueiredo, Enio José Pazini,
Oliveira, Janes Cleiton Alves de,
Silva, Izelman Oliveira da |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de Goiás
|
| Programa de Pós-Graduação: |
Programa de Pós-graduação em Engenharia Civil (EEC)
|
| Departamento: |
Escola de Engenharia Civil - EEC (RG)
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
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| Link de acesso: |
http://repositorio.bc.ufg.br/tede/handle/tede/5473
|
Resumo: |
The surface electrical resistivity of the fresh and hardened concrete states can be influenced by factors such as degree of hydration, the water / binder ratio (w / b), aggregate content and existence of armour. This study objective is to evaluate the performance and behavior of the electrical resistivity of the concrete´s surface based on the influence of hidratation process, curing time and the w/b ratio. The actual measured were divided into three groups, where C-0,81 represents the specific group with w/b ratio= 0.81 and compressive strength =20 MPa; C-0,50 is the concrete with w/b ratio= 0.50 and 40 MPa; and C-0,35 represents the concrete with the ratio of 0.35 and compressive strength of 60 MPa. The curing procedures applied to the three groups were: dry cure, cure submerged up to seven days and cure submerged up to fourteen days. This study the results showed that in the higher ratio w/b , the porosity of the sample is greater, and this increases the electrical resistivity. Regarding the dry cured concrete, it had higher resistivity vs submerged conrete. The results also showed that greater the degree hydratation in the sample the greater the resistivity. |
