In the following tables, which have been presented in specialized laboratories of the University of Tehran at the request of weight stone for technical and scientific study of the structure of Dehbid marble (known as Crema Marfil Marble), you can see all the technical and structural factors of Dehbid Shayan marble.
This research has been done at the request of one of the customers to advance the principles and the correct choice of materials.
Among the items studied in the following tables, including physical characteristics, elements in the rock, tensile-abrasion, and flexural strength at different temperatures, water absorption, porosity, and density have been studied.
| Test items | Test methods | Test results |
|---|---|---|
| Petrographic description | EN 12407:2007 | Sedimentary (Marble) Fractured. |
| Apparent density | EN 1936:2006 | 2700 kg/m³ |
| Open porosity | EN 1936:2006 | 0.41% |
| Water absorption | EN 1295:2008 | 0.15% |
| Flexural strength in natural condition | EN 12372: 2006 | 7.67 MPa | |
| Flexural strength after 120 cycles freeze/thaw | EN 12371:2010 EN 12372:2006 | 6.27 MPa | 18.25 |
| Compressive strength in natural condition | EN 1926:2006 | 63.92 MPa | |
| Compressive strength after 120 cycles freeze/thaw | EN 12371:2010 EN 1926:2006 | 43.78 MPa | 31.37 |
| Static modulus before testing | EN 14146 | 19.20 GPa | |
| Static modulus after 120 cycles freeze/thaw | EN 14146 | 18 GPa | 6.25 |
| Dynamic Modulus before testing | EN 14580 | 45.44 GPa | |
| Dynamic Modulus after 120 cycles freeze/thaw | EN 14580 | 41.87 GPa | 7.85 |
| SiO2 | 0.57 % | LoI | 43.46 % |
| Al2O3 | 0.04 % | SO3 | 0.026 % |
| Fe2O3 | 0.41 % | Cl | 67 ppm |
| CaO | 54.49 % | Ba | 173 ppm |
| Na2O | 0.12 % | Sr | 221 ppm |
| K2O | 0.11 % | Cu | 14 ppm |
| MgO | 0.43 % | Zn | 15 ppm |
| TiO2 | 0.006 % | Pb | 40 ppm |
| MnO | 0.001 % | Ni | 28 ppm |
| P2O5 | 0.085 % | Cr | 2 ppm |
thanks for these useful informations!