Open AccessIdentification of moisture transport mechanism in gypsum during convective drying
Author(s) -
Robert Adamski,
Anna Adamska,
Z. Pakowski
Publication year - 2018
Language(s) - English
Resource type - Conference proceedings
DOI - 10.4995/ids2018.2018.7527
Subject(s) - gypsum , sorption , moisture , water content , permeability (electromagnetism) , materials science , work (physics) , modulus , environmental science , composite material , geotechnical engineering , thermodynamics , chemistry , geology , adsorption , biochemistry , physics , organic chemistry , membrane
Gypsum is a popular building material. Drying and rewetting of gypsum is a process of practical importance. This work presents the experimental results of kinetic of drying, heating and internal pressure development in rewetted gypsum cylinders. Analysis of the observed changes is presented. Additionally sorption isotherms, permeability and dependence of Young’s modulus on moisture content were measured. These data will be used in the model of the process under development. Keywords: internal pressure, permeability, Young’s modulus