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Classification of Parameters Affecting Impact Resistance of Natural Stones

2016    Sariisik, G.; Ozkan, E.; Kundak, E.; Akdas, H.

This study used various test methods to analyze the impact resistance of marble, limestone, and travertine to determine their breaking potential when they are used for interior and exterior floor covering. A total of 17 kinds of natural rocks (7 marbles, 5 travertines, and 5 limestones) were categorized according to their commonly used geological formations and were subjected to various characterization tests (mineralogical and petrographic characteristics, chemical properties, as well as physical and mechanical properties). The rupture energy caused by an impact on natural rocks was determined according to the BS EN 14158 standard, whereas restitution coefficients were determined according to the BS EN ISO 10545-5 standard. The impact resistance, rupture energy, and restitution coefficient of polished natural stone plates that were used in the tests were statistically analyzed. The parameters that affected these variables of natural rocks were plate thickness, mineralogical and petrographic characteristics, and physical and mechanical properties. Finally, the potential fractures of the specimens were classified based on impact resistance, rupture energy, and restitution coefficient.