Interaction of Building Stones with Inorganic Water-Soluble Salts

Interaction of inorganic water-soluble salts and building stones is studied in the paper. Two types of sandstone and one type of spongillite as representatives of materials used in historical masonry are subjected to experimental testing. Within the performed experiments, measurement of moisture and chloride concentration profiles is done in order to get input data for computational inverse analysis. Using the inverse analysis, moisture diffusivity and chloride diffusion coefficient of investigated materials are accessed. Additionally, the effect of salt presence on water vapor storage is investigated using dynamic vapor sorption device. The obtained data represents valuable information for restoration of historical masonry and give evidence on the performance of studied stones in contact with water soluble salts.

• Z. Pavlík
• J. Žumár
• M. Pavlíková
• R. Černý

• Moisture and chloride transport
• sandstone
• spongillite
• moisture diffusivity
• chloride diffusion coefficient.

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