Type |
Feldspat |
Feldspar-Molai |
Molai Stone |
Molai-Corundum |
Korund |
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Vare |
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Kemisk indhold |
Al2O3 |
20-30 |
30-45 |
45-70 |
70-90 |
≥90 |
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Al2O3+ SiO2 |
≥90 |
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Fe2O3 |
≤1 |
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Vandabsorption (%) |
≤5 |
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Syrebestandighed (%) |
≥98 |
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Alkakimodstand (%) |
≥80 |
≥82 |
≥85 |
≥90 |
≥95 |
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Driftstemperatur (° C) |
≥1300 |
≥1400 |
≥1500 |
≥1600 |
≥1700 |
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Knusningsstyrke |
Φ3 mm |
≥400 |
≥420 |
≥440 |
≥480 |
≥500 |
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Φ6 mm |
≥480 |
≥520 |
≥600 |
≥620 |
≥650 |
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Φ8 mm |
≥600 |
≥700 |
≥800 |
≥900 |
≥1000 |
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Φ10 mm |
≥1000 |
≥1100 |
≥1300 |
≥1500 |
≥1800 |
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Φ13 mm |
≥1500 |
≥1600 |
≥1800 |
≥2300 |
≥2600 |
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Φ16 mm |
≥1800 |
≥2000 |
≥2300 |
≥2800 |
≥3200 |
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Φ20 mm |
≥2500 |
≥2800 |
≥3200 |
≥3600 |
≥4000 |
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Φ25 mm |
≥3000 |
≥3200 |
≥3500 |
≥4000 |
≥4500 |
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Φ30 mm |
≥4000 |
≥4500 |
≥5000 |
≥5500 |
≥6000 |
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Φ38 mm |
≥6000 |
≥6500 |
≥7000 |
≥8500 |
≥10000 |
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Φ50 mm |
≥8000 |
≥8500 |
≥9000 |
≥10000 |
≥12000 |
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Φ75 mm |
≥10000 |
≥11000 |
≥12000 |
≥14000 |
≥15000 |
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Bulktæthed (kg/m3) |
1100-1200 |
1200-1300 |
1300-1400 |
1400-1550 |
≥1550 |
Diameter |
6/8/10 |
13 /16 /20 /25 |
30 /38 /50 |
60 /75 |
Tolerance over for diameter |
± 1,0 |
± 1,5 |
± 2,0 |
± 3,0 |
Porediameter |
2-3 |
3-5 |
5-8 |
8-10 |