2004
DOI: 10.1088/0022-3727/37/16/013
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Neutron radiography study of water absorption in porous building materials: anomalous diffusion analysis

Abstract: Dynamic neutron radiography was applied to obtain the experimental data concerning the kinetics of the wetting process in two different types (fired-clay and siliceous brick) of porous construction materials. The technique provides accurate experimental data concerning the first instants as well as the advanced stages of the imbibing process. A significant difference in water absorption parameters, contrasting the materials studied, is found. Both the advance of the wetting front and the time evolution of wate… Show more

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Cited by 87 publications
(35 citation statements)
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“…Para a difusividade fracionária D γ são utilizadas as expressões (12) e (13). Os resultados numéricos são comparados com os dados experimentais do tijolo de silício branco de El Abd [3].…”
Section: Resultados E Discussõesunclassified
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“…Para a difusividade fracionária D γ são utilizadas as expressões (12) e (13). Os resultados numéricos são comparados com os dados experimentais do tijolo de silício branco de El Abd [3].…”
Section: Resultados E Discussõesunclassified
“…Neste primeiro caso, considera-se um tijolo de silício branco que apresenta um fenômeno de difusão anômala [3]. A expressão usada para a difusividade fracionáriaé dada por Gerolymatou [5] …”
Section: Casounclassified
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