Slate Stone
Slate is a metamorphic rock that is fine-grained, foliated, and homogenous. Roofing slates, commonly known as roofing shingles, can be produced from slate. Slate tiles are frequently used for internal and external flooring, as well as wall cladding. Tiles are laid on mortar and grouted along the edges. Sealants are frequently used on tiles to improve longevity and aesthetics, stain resistance, efflorescence, and surface smoothness.
CHEMICAL PROPERTIES
| SiO2 | 55-65% |
|---|---|
| Iron (Fe2O3) | 4%-8% |
| Alumina (Al2O3) | 15 to 20% |
| Lime (CaO) | 0.5-1% |
| TiO2 | 0.4-0.5% |
| Soda (Na2O) & Potash (K2O): | 2-4% |
| Magnesia (MgO) | 0.5-3% |
| Loss On Ignition (LOI) | 3-4% |
PHYSICAL PROPERTIES
| Hardness | 3.0 to 4.0 on Moh’s scale |
|---|---|
| Density | Between 2.6 to 2.8 Kg/cm3 |
| Compressive Strength | Between 24 to 36 N/mm2 |
| Water Absorption | 1.5 to 2% |
| Flexural strength | 12 – 20 MPa |
| Porosity | Low to very low |
| Modulus of Rupture | 22 to 34 N/mm2 |
| Weather Impact | Resistant |
| Corrodibility | 0.4 to 0.7% |
| Specific Gravity | 2.65 to 2.80 |
Offered in following Finished and Sizes:
| Finishes | Natural ,Swan, Honed, Polished, Sand / Shot Blasted, Flammed, Leather, Bush Hammered, etc. |
|---|---|
| Size | Gangsaw Slabs, Cutter Slabs, Cut to Size, Tiles and as specified by client. |
| Thickness (in MM) | 16 / 20 / 30 / 40 and as specified by client. |