A gravitational procedure to measure the diffusion coefficient of mater in porous materials : a case study on concrete

A.J.J. Zanden, van der, A. Taher

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Abstract

A new procedure is presented with which the diffusion coefficient of water in partially saturated porous materials can be measured. The first step in the procedure is the creation of a non-equilibrium situation inside a sample by placing it into a centrifuge. In the second step, the mass of the sample is measured by hanging it from two cables, each connected to a balance. The comparison of the time evolutions of the measured masses and the masses as predicted using Fick’s second law gives the diffusion coefficient.
Original languageEnglish
Pages (from-to)708-712
Number of pages5
JournalDrying Technology
Volume32
Issue number6
DOIs
Publication statusPublished - 2014

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