ار Stone
The stone must have a healthy structure, so that it does not have grooves, cracks, and loose streaks, and it should be uniform and uniform.
ای water absorption
Building stone should not have the ability to absorb a lot of water, so it should not disintegrate and dissolve in water.
Pacifications
Building stone should not be contaminated with natural and artificial materials, in fact, it should be available completely clean.
مان Stone via environmental factors
Natural stone must withstand the physical and chemical conditions of the environment, so it must resist wind, frost, temperature changes, and if there is water flow, and all erosion factors.
Mechanical Video
The compressive strain for load-bearing parts should not be less than 150 kg/cm2.