Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/26972
Tipo: | Artigo |
Título: | Durability of concrete after fire through accelerated carbonation tests |
Autor(es): | Oliveira, Jaqueline de Assis Ribeiro, José Carlos Lopes Pedroti, Leonardo Gonçalves Faria, Camila Spagol de Nalon, Gustavo Henrique Oliveira Júnior, André Luis de |
Abstract: | Degradation of mechanical properties and durability of reinforced concrete structures occur when they are subjected to fire situations, depending on the characteristics of the material, fire duration and the ways of fire extinguishing. Mechanical properties such as compressive strength, tensile strength and elasticity modulus are some examples of typically altered characteristics in concrete during high temperature exposure. Nevertheless, little is known about the advance of the carbonation front on fire-damaged concrete, which is a characteristic directly related to the durability of the structural system. For this purpose, the carbonation front was evaluated in specimens with characteristic strengths of 20 MPa and 35 MPa, subjected to high temperatures (200 °C, 500 ºC and 700 ºC) and different types of cooling (fast and slow). It was observed that the concrete durability is harmed by exposure to high temperatures and fast cooling. However, advance of the carbonation front was not verified in slow cooling situations. |
Palavras-chave: | Concrete Fire Carbonation Durability |
Editor: | Materials Research |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.1590/1980-5373-mr-2019-0049 https://locus.ufv.br//handle/123456789/26972 |
Data do documento: | 2019 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf | Texto completo | 1,64 MB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.