Paper Title:
Measurement of Diffusion Coefficients in Building Materials Using the Initial Rate of Sorption
  Abstract

This work presents experimental values of molecular diffusion coefficient, obtained with samples of building materials, using a non-stationary process of moisture absorption. The experiments covered four different types of building materials (with two selected ranges of relative humidity) and were carried out in the range of temperatures between 20°C and 40°C. The results show that the increase in temperature resulted in an increase in molecular diffusion coefficient and the relative humidity also influenced the molecular diffusion in a uniform manner. Finally, a good agreement with literature values was found.

  Info
Periodical
Defect and Diffusion Forum (Volumes 258-260)
Edited by
Andreas Öchsner and José Grácio
Pages
85-90
DOI
10.4028/www.scientific.net/DDF.258-260.85
Citation
J. M.P. Delgado, "Measurement of Diffusion Coefficients in Building Materials Using the Initial Rate of Sorption", Defect and Diffusion Forum, Vols. 258-260, pp. 85-90, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: R.M.S.F. Almeida, P. Paula, A. Santos, N.M.M. Ramos, J.M.P.Q. Delgado, V.P. de Freitas
Chapter VIII
Abstract:This work consisted of two main lines of research: one of a literature review and other of simulation. In the first part, a modular...
137
Authors: Tomáš Korecký, Jaromír Žumár, Robert Černý
Abstract:The suitability of a water vapor transport parameter determined by the cup method for the description of water vapor transport in porous...
111