Concentration dependent diffusion in building materials - application of different methods

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Vasco Freitas (Autor) FEUP; Nuno Ramos (Autor) FEUP; João Delgado (Autor) FEUP

Revista

Título: Defect and Diffusion Forum

Vol. 273-276

Páginas: 61-65

ISSN: 1012-0386

Editora: Trans Tech Publications Ltd

Indexação

ISI Web of Science

Scopus

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

DOI: 10.4028/www.scientific.net/DDF.273-276.150

Abstract (EN): Moisture is an important factor when analyzing the behaviour of building elements and materials. A deeper knowledge on moisture transport under transient conditions of environmental air temperature and humidity is required. In this experimental work, the measurements of moisture diffusion coefficients, D-w, of three different types of building materials commonly used in Portugal (gypsum plasterboard, gypsum plaster and gypsum+lime plaster) were obtained for different values of temperature and relative humidity. The results obtained were in good agreement with the values found in literature and show that the increase in temperature resulted in an increase in the diffusion coefficient and an increase in relative humidity (54% to 69%) resulted in a decrease in D-w.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5