Open AccessMeasurement of Moisture Storage Parameters of Building Materials
Author(s) -
Milena Jiřičková,
Robert Černý,
Pavla Rovnanı́ková
Publication year - 2003
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/420
Subject(s) - moisture , materials science , sorption , porosimetry , brick , volume (thermodynamics) , calcium silicate , mercury intrusion porosimetry , water content , porosity , composite material , mineralogy , environmental science , geotechnical engineering , porous medium , thermodynamics , geology , chemistry , adsorption , physics , organic chemistry
The moisture storage parameters of three different building materials: calcium silicate, ceramic brick and autoclaved aerated concrete, are determined in the hygroscopic range and overhygroscopic range. Measured sorption isotherms and moisture retention curves are then combined into moisture storage functions using the Kelvin equation. A comparison of measured results with global characteristics of the pore space obtained by mercury intrusion porosimetry shows a reasonable agreement; the median pore radii by volume are well within the interval given by the beginning and the end of the characteristic steep parts of the moisture retention curves.