Acta Scientiarum Polonorum

The article presents the physical and mechanical properties of bricks taken from internal partitions of
a building erected in 1895 in Warsaw, al. Jan Chrystian Szucha 17/19. The purpose of the analysis was to
characterize and compare the properties of over 120-years-old masonry elements with the properties of
currently manufactured products. The analysis included the determination of features, such as: dimensions
and shape, absorbability, frost resistance, volumetric density, unit density, porosity and compressive
strength. On the basis of the results, the declarations of performance of the tested elements were drawn up
in relation to the applicable requirements.