Narva Marble

"Narva" Marble is mined in the Narvskoe deposit of the Mansky district of the Krasnoyarsk territory, Russia.

Average density - 2731 kg / m3

True density - 2800 kg / m3

Water absorption - 0,11%

Compressive strength in dry condition - avg. 123,6 MPa

Compressive strength in water-saturated state - avg. 105,4 MPa

Reduction of compressive strength of rock in a water-saturated state - 14,7%

Compressive strength after 50 cycles of frost resistance tests - 104,6 MPa

Compressive strength after 100 cycles of frost resistance tests - 103,6 MPa

Compressive strength after 150 cycles of frost resistance tests - 101,0 MPa

Reduction in compressive strength after 150 cycles of frost resistance tests - 4,22 %

Frost resistance, brand - 150

Abrasion - 0,85 g / cm2

Impact resistance - 60 cm

Specific effective activity of natural radionuclides - 55,6 Bq / kg

Decorativeness - 32