Pietra Grey Marble Stone is mined from Pietra Grey marble mines in Isfahan province. This stone has a gray/black theme color and white streaks. This stone is mostly processed in industrial areas and towns in Isfahan, Tehran and neighborhoods.
Usages of Pietra Grey Marble Stone
Pietra Grey marble stone, with a dark background and white lines on the surface and by creating uncoordinated and mixed designs, has added to the beauty of this marble, has caused it to be considered by many builders and due to the wide range. This type of stone will satisfy different experiences. Pietra Grey marble is one of the best and most attractive Iranian stones.
Pietra Grey marble is produced and processed in the dimensions of slabs, tiles, stairs and carpets in the form of axes, saws or polishes, leather.
Features of Pietra Grey Marble Stone
Pietra Grey marble has high compressive strength and abrasion resistance, which has increased the smoothness and luster of the stone.
Due to the presence of calcium carbonate, Pietra Grey marble has moderate water absorption and is therefore resistant to cold, heat and sunlight, and is therefore used outdoors. Other features include high flexural strength, good grinding mode, versatility, low porosity and good adhesion to mortar.
Medium water absorption
Can be used outdoors
Analysis of Pietra Grey Marble according to the standard of building stones:
|Row||Title||Iranian standard code||Min||Max||Pietra Grey|
|2||Water absorption rate||ISIRI 5699||0.03||1.50||0.96|
|3||Mega Pascal compressive resistance||ISIRI 5698||600||2200||1180|
|4||Abrasion Resistance||ISIRI 5700||2.20||6||3|
|5||Special Weight||ISIRI 5699||1.80||2.80||2.8|