The Alternative Model of Water Vapour Sorption in Porous Building Materials |
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| Authors: | Sylwester Furmaniak |
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| Institution: | 1. Department of Chemistry, Physicochemistry of Carbon Materials Research Group, N. Copernicus University, Gagarin St. 7, 87-100, Toru??, Poland
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| Abstract: | Mathematical modelling of water sorption in porous building materials is considered. The explanations of inadequacies of both Brunauer?CDeming?CDeming?CTeller model for the high relative humidities range and Frenkel?CHalsey?CHill model for the low relative humidities range reported by Pavlík et?al. (Transp. Porous Med. 91:939?C954, 2012) are proposed. The generalized D??Arcy and Watt (GDW) model is proposed as a simpler alternative for a procedure of experimental isotherms fitting proposed by Pavlík et?al. The suitability of the GDW equation to describe the water sorption isotherms in the building materials for the whole range of relative humidities is confirmed. |
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