Specifications
volcanic rock pumice:1. manufactory for lave stone 2.by SGS test 3.manufactory for lave stone
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Specification of volcanic rock pumice
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1-3mm? 2-4mm? 3-6mm? 4-8mm?? 5-10cm? ?7-15cm ?10-20cm? 20-40cm? 40-50cm? and so on.
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?Chemical Composition list??of? pumice stone:?
Chemical Composition | SiO2 | CaO | MgO | Fe2O3 | FeO | Al2O3 | TiO2 | K2O | Na2O |
Content % | 53.82 | 8.36 | 2.46 | 9.08 | 1.12 | 16.89 | 0.06 | 2.30 | 2.55 |
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?Physical Performance index of volcanic rock pumice:
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Performance index | unit | Test result |
Bulk density | Kg/m3 | 430-870 |
Water absorption | % | 11.7-17.03 |
Loose bulk density | Kg/m3 | 520 |
cylinder pressure strength | Mpa | 1.218 |
Moisture | % | 1 |
mechanical strength | Mpa | 5.08 |
thermal conductivity | w/(m.k) | 0.326 |
coefficient of softing | ? | 0.84 |
apparent density | Kg/m3 | 640-860/(390*240*190) |
Hollow ratio | % | 48/(390*240*190) |
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