Abstract:

In the study, the changes in the mechanical properties of the natural stone samples, which had been  obtained from different regions of Turkey, before and after the freeze-thaw test were examined.  Within the scope of the study, 17 different natural stone samples were used and, after chemical and  mineralogical-petrographical properties were determined. Water absorption at atmospheric  pressure, real density, porosity, and uniaxial compressive strength tests were performed  before and after freezing-thawing. The freezing and thawing test has been performed using TS EN  12371 standard from -12 °C to +20 °C in 56 cycles (2 cycles = 24 hours). After the test, the  samples were subjected to uniaxial compressive strength test in order to identify the changes of  the compressive strength values. The results of the physical and mechanical tests on these samples  were evaluated by grouping according to chemical and mineralogical-petrographical properties of  natural stones. It was aimed to determine which natural stone samples are resistant to freeze-thaw,  and can be used in  external cladding applications according to the findings obtained from the study.

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