Ключевые слова:
Roofing tiles, Ceramics, Heavy clay ceramics, Roof coverings, Tiles, Frost susceptibility, Environmental testing, Freeze-thaw tests, Freezing tests, Thermal-cycling tests, Thermal testing, Water-absorption tests, Low-pressure tests, Visual inspection (testing), Defects, Damage, Dry density, Density measurement, Test equipment, Calibration, Test specimens, Specimen preparation, Testing conditions