BIM, BIM Technical Sheet

Technical Data Sheet: Black Pearl Marble

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Technical Data Sheet: Black Pearl Marble

Black Pearl is classified as a crystalline marble. It is characterized by its high density and low water absorption rates, making it suitable for both interior flooring and exterior cladding applications.

Physical & Mechanical Properties

Property Value Unit
Hardness (Mohs) 3.0 – 4.0 Mohs
Unit Volume Weight 2.68 – 2.72 g/cm³
Density (Specific Gravity) 2.70 – 2.73 g/cm³
Water Absorption (Atms. Pressure) 0.15 – 0.20 % (by weight)
Water Absorption (Atms. Pressure) 0.40 – 0.50 % (by volume)
Water Absorption (Boiling Water) 0.25 – 0.35 % (by weight)
Water Absorption (Boiling Water) 0.60 – 0.75 % (by volume)
Porosity 0.40 – 0.60 %
Compressive Strength 80 – 110 MPa (N/mm²)
Compressive Strength (After Freezing) 75 – 95 MPa (N/mm²)
Strength to Blow (Impact Resistance) 12 – 18 kgf.cm/cm³
Strength to Bending (Flexural Strength) 10 – 15 MPa (N/mm²)
Ratio of Fullness (Solidness) 99.4 – 99.6 %
Degree of Pores 0.4 – 0.6 %
Average Abrasion Strength 15 – 22 cm³/50cm²

Analysis & Usage Notes

  • Durability: The high Compressive Strength (averaging near 100 MPa) ensures the material can withstand significant loads, making it an excellent choice for high-traffic commercial flooring.
  • Weather Resistance: With a very low Water Absorption rate and minimal loss of strength after freezing, this marble performs well in climates subject to freeze-thaw cycles.
  • Solidness: The Ratio of Fullness exceeding 99% indicates a very compact internal structure with minimal microscopic voids, which contributes to its high polish retention and resistance to staining.

Note: Natural stones are products of nature; therefore, variations in color, veining, and technical values are expected. It is recommended to perform project-specific testing if the stone is being used for critical structural load-bearing elements.

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