期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 22, 期 8, 页码 1841-1850出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2007.04.020
关键词
salts; modeling; crystallization; humidity and moisture transport; software
Salts in porous building materials are not only considered as a major cause of damage but also strongly affect the hygric and capillary transport properties of such materials. This paper describes a model implemented into an efficient computer code that can be used for predicting the non-ideal behavior of pore solutions of complex composition. The model is based on the Pitzer ion interaction approach. Model parameters are provided and validated for the system Na+-K+-Cl--NO3--SO42--H2O in the temperature range relevant to most buildings, i.e. from the temperature of freezing to 45 degrees C. This offers a number of potential applications including the incorporation in chemical equilibrium and humidity and moisture transport models. (C) 2007 Elsevier Ltd. All rights reserved.
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