Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/101579
Autor(es): | N. M. M. Ramos J. M. P. Q. Delgado V. P. Freitas |
Título: | Anomalous diffusion during water absorption in porous building materials - experimental evidence |
Data de publicação: | 2008 |
Resumo: | The sorption and transport of water in two porous building materials, clay brick and autoclaved aerated concrete, was studied in detail. The evolution of the distribution of liquid in the porous medium was analysed in terms of the Boltzmann transform method and anomalous diffusion equation proposed by Küntz and Lavallée [1]. The apparent moisture diffusion coefficients of water were determined from the total water profiles using a modified Boltzmann-Matano analysis, and a good agreement with literature values was found. The application of anomalous diffusion model to building materials indicates that the previous 1/ 2 t relation is not entirely accurate to estimate the volume of absorbed water. This result has particular relevance for evaluating the durability of building structures. |
Assunto: | Engenharia civil, Outras ciências da engenharia e tecnologias Civil engineering, Other engineering and technologies |
Áreas do conhecimento: | Ciências da engenharia e tecnologias::Outras ciências da engenharia e tecnologias Engineering and technology::Other engineering and technologies |
URI: | https://hdl.handle.net/10216/101579 |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FEUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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94403.2.pdf Restricted Access | Anomalous Diffusion during Water Absorption in Porous Building Materials - Experimental Evidence | 113.34 kB | Adobe PDF | Request a copy from the Author(s) |
94403.1.pdf Restricted Access | Anomalous Diffusion during Water Absorption in Porous Building Materials - Experimental Evidence | 75.27 kB | Adobe PDF | Request a copy from the Author(s) |
94403.pdf Restricted Access | 443.38 kB | Adobe PDF | Request a copy from the Author(s) |
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