Measurements of moisture diffusion coefficient of wood wool

Authors

Keywords:

wood wool, natural building materials, thermal insulation, moisture diffusion, sorption kinetics

Abstract

The moisture diffusion coefficient of wood wool was determined using two analytical methods - Crank's initial sorption method and Liu's method. Measurements were carried out for two ranges of relative humidity in the air around the samples (RH ranges from 0% to 45% and from 45% to 90%). Samples of two types of wood wool were analyzed: the first - with a declared thermal conductivity coefficient of 0.038 W/m∙K and the second - with a declared thermal conductivity coefficient of 0.036 W/m∙K. For the materials examined, the value of the moisture diffusion coefficient decreases as the relative humidity increases.

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Published

10-09-2025

Issue

Section

Transportation & Civil eng.