Steiger.etal:2008c

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Michael Steiger, Jana Kiekbusch, Andreas Nicolai (2008): An improved model incorporating Pitzer’s equations for calculation of thermodynamic properties of pore solutions implemented into an efficient program code.- In: Construction and Building Materials, 22, 8, pp. 1841-1850, doi: 10.1016/j.conbuildmat.2007.04.020

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Abstract

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 View the MathML source in the temperature range relevant to most buildings, i.e. from the temperature of freezing to 45 °C. This offers a number of potential applications including the incorporation in chemical equilibrium and humidity and moisture transport models.

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