The company “Perlite group” offers you ecologically clean perlite:
Physicotechnical parameters of perlite extracted at “Fogosh” deposit
| Name of index | DSTU TU U 21. V. 526-92 | Actual fraction, mm | |||
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SiO2 | 65,0-77,0 |
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Àl20ç | 11,0-16,0 |
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ÑàÎ | 0,4-3,5 |
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FeO+Få2Îç | 1,0-6,0 |
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Na2O+K2O | 3,0-10,0 |
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Ï. Ï. II. % by mass | 4,0-10,0 |
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Average density, t/m3 | In accordance with DSTU | 1,77-2,18 | |||
Natural humidity, % | - | 3,0 | |||
Porosity, % | - | 9,0-25,6 | |||
Water absorption, % | - | 6,2-7,5 | |||
Boundary of stability when compressed, MPa | - | 19,0-31,8 | |||
Apparent density, t/m3 | - | 0,7-1,35 | |||
Amount of bounded water, % | - | 4,94-5,13 | |||
Expansion temperature | Not more than 1200Ñ |
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Apparent density of expanded perlite, kg/m3 | 70-90 (1g), 90-120 (2 g) |
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Thermal conductivity of expanded perlite, W/mK |
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Content of serratiform and clay portions, % by mass | Not more than 3 |
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