Phase Composition and Porosity Structure of Ceramic Bricks More Than 100 Years Old: Catholic Church, Iverskiy Monastery, and Church of the Nativity in Samara Oblast

摘要

X-ray phase analysis and IR spectroscopy have been used to show the strength properties of ceramic serving for more than 100 years in buildings of a Roman-Catholic church, the Iverskiy monastery, and the Church of the Nativity. Moreover, the presence of pores of isometric form and oval closed porosity in the experimental samples of brick from these buildings also promotes greater longevity.