Simultaneous heat and moisture transport in porous building materials: evaluation of nonisothermal moisture transport properties

2008 ◽  
Vol 43 (10) ◽  
pp. 3655-3663 ◽  
Author(s):  
Menghao Qin ◽  
Rafik Belarbi ◽  
Abdelkarim Aït-Mokhtar ◽  
Lars-Olof Nilsson
Keyword(s):  
Transport Properties ◽  
Moisture Transport ◽  
Building Materials ◽  
Porous Building Materials ◽  
Heat And Moisture Transport ◽  
Heat And Moisture ◽  
Simultaneous Heat

scholarly journals Characteristics of Artificial Leather for Footwear- Heat and Moisture Transport Properties -

2007 ◽  
Vol 63 (11) ◽  
pp. 271-275 ◽  
Author(s):  
Won Young Jeong ◽  
Jung Woo Park ◽  
Masayoshi Kamijo ◽  
Yoshio Shimizu ◽  
Seung Kook An
Keyword(s):  
Transport Properties ◽  
Moisture Transport ◽  
Artificial Leather ◽  
Heat And Moisture Transport ◽  
Heat And Moisture

HYSTERESIS AND TEMPERATURE DEPENDENCY OF WATER VAPOR SORPTION

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Ruta Miniotaite
Keyword(s):  
Building Materials ◽  
Moisture Sorption ◽  
Water Vapor Sorption ◽  
Temperature Dependency ◽  
Adsorption And Desorption ◽  
Porous Building Materials ◽  
Heat And Moisture Transport ◽  
Almost All ◽  
Heat And Moisture ◽  
Sorption Characteristics

Moisture in porous building materials plays an important role in almost all durability problems. The sorption characteristics of building materials exhibit hysteresis in the way the equilibrium curves develop between adsorption and desorption. The sorption curves are also somewhat temperature-dependent. These facts are most often neglected in models for combined heat and moisture transport in materials. This study provides the sorption isotherm and its hysteresis of different porous building materials. The paper seeks to contribute to the knowledge base about such sorption characteristic by presenting some new measurements of hysteresis and temperature dependency of the moisture sorption characteristics of different porous building materials: concrete, porous concrete, cement plaster, limes cement plaster, brick, and spruce. Scanning curves are measured for all materials where periods with adsorption and desorption interrupt each other intermittently between 0% and 97% of relative humidity.

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