Experimental and computational analysis of salt transport, accumulation, and crystallization in non-hydrophobized render

Info

Provider: GA ČR
Solution time: 2021-2023
Project No: 21-06582S

An analysis of salt transport, accumulation, and crystallization in non-hydrophobized rendering
mortars and study of the effect of salts on parameters, functional properties, and durability of
non-hydrophobized renders for salt laden masonry is the subject of the project. The proposed
experiments comprise design and development of mortars compatible with historical masonry,
characterization of raw materials, study of mineral admixtures, tests of microstructure, structural
parameters, mechanical properties, corrosion resistance, moisture, heat, and salt transport and
storage parameters of the developed mortars. These parameters will serve as input data for
computational analysis of the studied problem, where together with the numerical model salt
binding isotherms will be formulated. The changes in porosity due to salt crystallization and the
damage theory will be also introduced in the model. This complex approach will enable to attain
a higher level of understanding of the effect of mineral admixtures on the physico-chemical
processes in renders applied on salt laden masonry.

Principal investigator

Zbyšek Pavlík

2 2435 7917

Office: D1048a