Oriental white board
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Outline：Decorative stone is architectural decorative stone, architectural decorative stone refers to the stone with sawing, polishing and other processing properties, as a decorative material on the building, including natural stone and artificial stone two categories.
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| Oriental white marble physical and chemical inspection data table | ||||
| Inspection item | Unit of measurement | Standard technical indexJC/T 202-2001 | Inspection data | Standard condition |
| Bulk density | g/cm3 | Not less than2.6 | 2.72 | reach |
| Water absorption rate | % | Not more than0.75 | 0.14 | more than |
| Bending strength | MPa | Not less than7.0 | 19.9 | more than |
| Dry compression strength | MPa | Not less than20.0 | 108.9 | more than |
| glossiness | The degree of | 90(superior) | 100.7 | more than |
| SiO2 | % | 0.17 | ||
| AL2O3 | % | 0.06 | ||
| CaO | % | 54.25 | ||
| MgO | % | 1.5 | ||
| TiO2 | % | 0.008 | ||
| Firing loss | % | 43.62 | ||
| Radium equivalent concentration | Bq/kg | Class A≦350 | 16 | Class A product |
| Oriental white marbleTest list for radioactive elements | ||||
| sampling | Total strength(count) | Uranium content(10-6) | Thorium content(10-6) | Potassium content(%) |
| background | 13310 | 0.1 | 1.1 | 1.02 |
| specimen | 13926 | 0.1 | 1.2 | 1.04 |
| Measurement results of r radiation exposure rate of Oriental white marble | ||||
| Measuring item | Measurement condition | Exposure rate(u R/h)Mean value±Standard deviation | conclusion | |
| Oriental white marble | 0.5 meters high from the brick surface | 10.57±0.4 | Can be directly used for all kinds of buildings indoor and outdoor decoration | |
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