Abstract
This paper presents measured moisture diffusivities for sedimentary calcareous sandstone, lime silica bricks, bricks, and autoclaved, aerated concrete. The moisture diffusivities were calculated from the relation between the water sorption coefficients and the initial water content in the specimen before testing. The method used is based on Boltzmann transformation. The relation between the water sorption coefficients and the initial water content is measured by letting specimens, preconditioned to different initial water contents, suck de-ionized water while the water uptake is measured.
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